{"data":[{"id":532,"title":"Electromagnetics","edition_statement":null,"volume":"Vol 1","copyright_year":2018,"ISBN10":null,"ISBN13":"9780997920192","license":"Attribution-ShareAlike","language":"eng","accessibility_statement":"","accessibility_features":"","description":"Electromagnetics Volume 1 by Steven W. Ellingson is a 238-page, peer-reviewed open educational resource intended for electrical engineering students in the third year of a bachelor of science degree program. It is intended as a primary textbook for a one-semester first course in undergraduate engineering electromagnetics. The book employs the “transmission lines first” approach in which transmission lines are introduced using a lumped-element equivalent circuit model for a differential length of transmission line, leading to one-dimensional wage equations for voltage and current. Additional ResourcesProblem sets and the corresponding solution manual are also available.","contributors":[{"id":4442,"contribution":"Author","primary":true,"corporate":false,"title":null,"first_name":"Steven","middle_name":"W.","last_name":"Ellingson","location":"Virginia Tech","background_text":"Steven W. Ellingson (ellingson@vt.edu) is an Associate Professor at Virginia Tech in Blacksburg, Virginia in the United States. He received PhD and MS degrees in Electrical Engineering from the Ohio State University and a BS in Electrical \u0026 Computer Engineering from Clarkson University. He was employed by the US Army, Booz-Allen \u0026 Hamilton, Raytheon, and the Ohio State University ElectroScience Laboratory before joining the faculty of Virginia Tech, where he teaches courses in electromagnetics, radio frequency systems, wireless communications, and signal processing. His research includes topics in wireless communications, radio science, and radio frequency instrumentation. Professor Ellingson serves as a consultant to industry and government and is the author of Radio Systems Engineering (Cambridge University Press, 2016)."}],"subjects":[{"id":54,"name":"Electrical Engineering","parent_subject_id":13,"call_number":"TK1","visible_textbooks_count":24,"url":"https://open.umn.edu/opentextbooks/subjects/electrical?locale=es"},{"id":13,"name":"Engineering \u0026 Technology","parent_subject_id":null,"call_number":"TA145","visible_textbooks_count":119,"url":"https://open.umn.edu/opentextbooks/subjects/engineering?locale=es"},{"id":39,"name":"Physics","parent_subject_id":8,"call_number":"QC21.3","visible_textbooks_count":47,"url":"https://open.umn.edu/opentextbooks/subjects/physics?locale=es"}],"publishers":[{"id":573,"url":"https://vtechworks.lib.vt.edu/handle/10919/84164","year":null,"created_at":"2018-09-07T12:22:41.000-05:00","updated_at":"2018-09-07T12:22:41.000-05:00","name":"Virginia Tech Libraries"}],"formats":[{"id":1027,"type":"PDF","url":"https://vtechworks.lib.vt.edu/handle/10919/84164","price":{"cents":0,"currency_iso":"USD"},"isbn":null},{"id":1028,"type":"Hardcopy","url":"https://www.amazon.com/dp/0997920181","price":{"cents":0,"currency_iso":"USD"},"isbn":null}],"rating":"4.5","textbook_reviews_count":2,"reviews":[{"id":2512,"first_name":"Willis","last_name":"Troy","position":"Assistant Professor","institution_name":"Anderson University","comprehensiveness_rating":4,"comprehensiveness_review":"This book does not cover smith charts, which are frequently covered in a first semester EM course.  However, they aren't absolutely necessary and they are referenced for further reading.  ","accuracy_rating":5,"accuracy_review":"I saw 1 error, but it was fixed in the errata for the book.","relevance_rating":5,"relevance_review":"The structure of this book is quite similar to other EM text books.  It might be even more relevant as time goes on because it can be quickly updated and distributed. ","clarity_rating":5,"clarity_review":"The text is clear and does a good job of addressing typical confusions students might have.","consistency_rating":5,"consistency_review":"I didn't notice any inconsistencies. ","modularity_rating":5,"modularity_review":"This text does a good job at having the sections stand alone. Often it will review material in each section or reference it for quick study.  ","organization_rating":5,"organization_review":"There are two camps in Electromagnetics courses - cover transmission lines right before wave propagation, or at the beginning of the course.  I feel that the material is better suited before plane wave propagation. However, this text is quite modular so it can be constructed to suit those needs. ","interface_rating":3,"interface_review":"Sometimes it is hard to differentiate between figure captions and continued main body text.  If they could have the figure captions indented a bit, smaller font, or different font, I think it would help immensely. \r\n\r\nThe highlighted caption text of the figures was nice, but given the word instead of the symbol might prove confusing for some. \r\n\r\nThe yellow key idea boxes seem to be bounded at times and not at others, though this might be an issues with my pdf reader as I didn't notice it when I loaded the pdf in safari.","grammatical_rating":5,"grammatical_review":"I did not notice any grammatical errors.","cultural_rating":5,"cultural_review":"The book is focused only on the technical nature of Electromagnetics, I did not see any references to people or culture.","overall_rating":9,"overall_review":"The number of examples in the text went down as the text progressed, it would be nice to have some more in the text.\r\nA reviewer might think that this textbook doesn't have problems, but the book's site on the Virginia Tech website does contain problems as well as solutions. The website also has the errata.","created_at":"2019-01-10T21:11:23.000-06:00","updated_at":"2019-01-10T21:11:23.000-06:00"},{"id":3322,"first_name":"Ahmet Emin","last_name":"Akosman","position":"Assistant Professor","institution_name":"Roger Williams University","comprehensiveness_rating":4,"comprehensiveness_review":"The book beautifully covers all the topics for an introductory Electromagnetic Theory book. Some explanations are not as thorough as it could be. Referencing to Wikipedia for further reading sounds well in the beginning, but those subjects in Wikipedia are not necessarily captured in a detailed way.\r\n\r\nAuthor's own explanations for the concepts looks sufficient and understandable for an Undergraduate Engineering Student. \r\nOne more important point: The book lacks additional problems, even though it includes nice exercises with solutions.","accuracy_rating":5,"accuracy_review":"Content is accurate and error-free as far as I checked. Since it is a technical subject, the explanations look unbiased and concise. ","relevance_rating":4,"relevance_review":"Since it is a fundamental theory, the content covers the theoretical background nicely. However, it could be nicer to include more applications using these fundamental theories. It seems the book targets Physics departments more than the Engineering departments.","clarity_rating":5,"clarity_review":"The author's language is clear and explains all the basic terminology. The amount of context is sufficient for an introductory Electromagnetic Theory course.","consistency_rating":5,"consistency_review":"The author described the content in a clear way, and the terminology and framework is consistent. I did not come across with a major ambiguity or contradicting explanation throughout the book. Specifically, the explanation for the usage of scalar and vector quantities, and their notations is very useful.","modularity_rating":5,"modularity_review":"The book is divided into very precise and logical sub-chapters. The amount of sub-sections does not look overwhelming at all. Book's references to other chapters are consistent.","organization_rating":5,"organization_review":"The flow and the evolution of the topics are reasonable, and mostly done in the same way with the other Electromagnetic books available.","interface_rating":3,"interface_review":"Some figures are not printed, and some are not clearly displayed. Also, in some examples, the drawings could be bigger and clear.","grammatical_rating":5,"grammatical_review":"The text is almost error-free grammatically. Also, almost no typographic errors.","cultural_rating":5,"cultural_review":"The book's content is not applicable for an evaluation of cultural discrimination.","overall_rating":9,"overall_review":"In short, the book is very concise, and follows a contextual framework that is common in other Electromagnetic books. It can be easily used in an introductory  Engineering Electromagnetic Theory course, however the instructor should prepare a good amount of example problems, since the book lacks additional exercises.","created_at":"2019-11-27T09:03:39.000-06:00","updated_at":"2019-11-27T09:03:39.000-06:00"}],"url":"https://open.umn.edu/opentextbooks/textbooks/electromagnetics-vol-1?locale=es","updated_at":"2026-05-18T02:09:45.000-05:00"},{"id":708,"title":"Electromagnetics","edition_statement":null,"volume":"Vol 2","copyright_year":2020,"ISBN10":null,"ISBN13":null,"license":"Attribution-ShareAlike","language":"eng","accessibility_statement":"","accessibility_features":"","description":"Electromagnetics, volume 2 by Steven W. Ellingson is a 216-page peer-reviewed open textbook designed especially for electrical engineering students in the third year of a bachelor of science degree program. It is intended as the primary textbook for the second semester of a two-semester undergraduate engineering electromagnetics sequence. The book addresses magnetic force and the Biot-Savart law; general and lossy media; parallel plate and rectangular waveguides; parallel wire, microstrip, and coaxial transmission lines; AC current flow and skin depth; reflection and transmission at planar boundaries; fields in parallel plate, parallel wire, and microstrip transmission lines; optical fiber; and radiation and antennas. To express your interest in this book or series, please visit http://bit.ly/vtpublishing-updates Additional resources Problem sets and the corresponding solution manuals; Slides of figures used in and created for the book; LaTeX sourcefiles; Errata for Volume 2; Collaborator portal for the Electromagnetics series; Faculty listserv for the Electromagnetics series. An accessible version will be available in January 2020. The Open Electromagnetics Project Led by Steven W. Ellingson at Virginia Tech, the goal of the Open Electromagnetics Project is to create no-cost openly-licensed content for courses in engineering electromagnetics. The project is motivated by two things: lowering learning material costs for students and giving faculty the freedom to adopt, modify, and improve their educational resources. Books in this Series Electromagnetics, Volume 1 https://doi.org/10.21061/electromagnetics-vol-1 Electromagnetics, Volume 2 https://doi.org/10.21061/electromagnetics-vol-2","contributors":[{"id":4847,"contribution":"Author","primary":true,"corporate":false,"title":null,"first_name":"Steven","middle_name":"W.","last_name":"Ellingson","location":null,"background_text":"Steven W. Ellingson (ellingson@vt.edu) is an Associate Professor at Virginia Tech in Blacksburg, Virginia in the United States. He received PhD and MS degrees in Electrical Engineering from the Ohio State University and a BS in Electrical \u0026 Computer Engineering from Clarkson University. He was employed by the US Army, Booz-Allen \u0026 Hamilton, Raytheon, and the Ohio State University ElectroScience Laboratory before joining the faculty of Virginia Tech, where he teaches courses in electromagnetics, radio frequency systems, wireless communications, and signal processing. His research includes topics in wireless communications, radio science, and radio frequency instrumentation. Professor Ellingson serves as a consultant to industry and government and is the author of Radio Systems Engineering (Cambridge University Press, 2016)."}],"subjects":[{"id":54,"name":"Electrical Engineering","parent_subject_id":13,"call_number":"TK1","visible_textbooks_count":24,"url":"https://open.umn.edu/opentextbooks/subjects/electrical?locale=es"},{"id":13,"name":"Engineering \u0026 Technology","parent_subject_id":null,"call_number":"TA145","visible_textbooks_count":119,"url":"https://open.umn.edu/opentextbooks/subjects/engineering?locale=es"},{"id":39,"name":"Physics","parent_subject_id":8,"call_number":"QC21.3","visible_textbooks_count":47,"url":"https://open.umn.edu/opentextbooks/subjects/physics?locale=es"}],"publishers":[{"id":686,"url":"https://doi.org/10.21061/electromagnetics-vol-2","year":2020,"created_at":"2019-05-15T16:17:38.000-05:00","updated_at":"2019-12-16T20:49:23.000-06:00","name":"Virginia Tech Publishing"}],"formats":[{"id":1368,"type":"PDF","url":"https://vtechworks.lib.vt.edu/bitstream/handle/10919/93253/Electromagnetics_Vol2.pdf?sequence=18\u0026isAllowed=y","price":{"cents":0,"currency_iso":"USD"},"isbn":null},{"id":1369,"type":"Hardcopy","url":"https://www.amazon.com/dp/1949373916","price":{"cents":0,"currency_iso":"USD"},"isbn":null}],"rating":null,"textbook_reviews_count":0,"reviews":[],"url":"https://open.umn.edu/opentextbooks/textbooks/electromagnetics-vol-2?locale=es","updated_at":"2026-05-18T02:09:51.000-05:00"},{"id":758,"title":"Microwave and RF Design: Amplifiers and Oscillators","edition_statement":null,"volume":null,"copyright_year":2019,"ISBN10":null,"ISBN13":null,"license":"Attribution-NonCommercial","language":"eng","accessibility_statement":null,"accessibility_features":"unknown","description":"Microwave and RF Design: Amplifiers and Oscillators presents the design of amplifiers and oscillators in a way that enables state-of-the-art designs to be realized. Detailed strategies and case studies are presented. Design of competitive microwave amplifiers and oscillators is particularly challenging as many trade-offs are required in design, and the design decisions cannot be reduced to a formulaic flow. The emphasis is on developing design skills. This book is suitable as both an undergraduate and graduate textbook, as well as a career-long reference book.","contributors":[{"id":4946,"contribution":"Author","primary":true,"corporate":false,"title":null,"first_name":"Michael","middle_name":null,"last_name":"Steer","location":"NC State","background_text":"Michael Steer is the Lampe Distinguished Professor of Electrical and Computer Engineering at North Carolina State University. He received his B.E. and Ph.D. degrees in Electrical Engineering from the University of Queensland. He is a Fellow of the IEEE and is a former editor-in-chief of IEEE Transactions on Microwave Theory and Techniques. He has authored more than 500 publications including twelve books. In 2009 he received a US Army Medal, “The Commander’s Award for Public Service.” He received the 2010 Microwave Prize and the 2011 Distinguished Educator Award, both from the IEEE Microwave Theory and Techniques Society."}],"subjects":[{"id":54,"name":"Electrical Engineering","parent_subject_id":13,"call_number":"TK1","visible_textbooks_count":24,"url":"https://open.umn.edu/opentextbooks/subjects/electrical?locale=es"},{"id":13,"name":"Engineering \u0026 Technology","parent_subject_id":null,"call_number":"TA145","visible_textbooks_count":119,"url":"https://open.umn.edu/opentextbooks/subjects/engineering?locale=es"}],"publishers":[{"id":737,"url":"https://repository.lib.ncsu.edu/handle/1840.20/36776","year":null,"created_at":"2019-08-18T09:10:01.000-05:00","updated_at":"2019-08-18T09:10:01.000-05:00","name":"North Carolina State University Libraries"}],"formats":[{"id":1294,"type":"PDF","url":"https://repository.lib.ncsu.edu/handle/1840.20/36776","price":{"cents":0,"currency_iso":"USD"},"isbn":"978-1-4696-5699-1"},{"id":1295,"type":"Hardcopy","url":"https://www.uncpress.org/book/9781469656984/microwave-and-rf-design-volume-5/","price":{"cents":0,"currency_iso":"USD"},"isbn":"978-1-4696-5698-4"}],"rating":null,"textbook_reviews_count":0,"reviews":[],"url":"https://open.umn.edu/opentextbooks/textbooks/microwave-and-rf-design-amplifiers-and-oscillators?locale=es","updated_at":"2026-05-18T02:06:44.000-05:00"},{"id":757,"title":"Microwave and RF Design: Modules","edition_statement":null,"volume":null,"copyright_year":2019,"ISBN10":null,"ISBN13":null,"license":"Attribution-NonCommercial","language":"eng","accessibility_statement":null,"accessibility_features":"unknown","description":"Microwave and RF Design: Modules focuses on the design of systems based on microwave modules. The use of modules has become increasingly important in RF and microwave engineering for rapidly realizing high performance microwave systems. When integration is ultimately to be used, building a system up using modules provides a rapid means of prototyping and testing system concepts. A wide variety of RF modules including amplifiers, local oscillators, switches, circulators, isolators, phase detectors, frequency multipliers and dividers, phase-locked loops, and direct digital synthesizers are considered. Detailed design strategies for synthesizing filters based on parallel coupled lines are presented. The reader will gain an appreciation of design by synthesis. This book is suitable as both an undergraduate and graduate textbook, as well as a career-long reference book.","contributors":[{"id":4945,"contribution":"Author","primary":true,"corporate":false,"title":null,"first_name":"Michael","middle_name":null,"last_name":"Steer","location":"NC State","background_text":"Michael Steer is the Lampe Distinguished Professor of Electrical and Computer Engineering at North Carolina State University. He received his B.E. and Ph.D. degrees in Electrical Engineering from the University of Queensland. He is a Fellow of the IEEE and is a former editor-in-chief of IEEE Transactions on Microwave Theory and Techniques. He has authored more than 500 publications including twelve books. In 2009 he received a US Army Medal, “The Commander’s Award for Public Service.” He received the 2010 Microwave Prize and the 2011 Distinguished Educator Award, both from the IEEE Microwave Theory and Techniques Society."}],"subjects":[{"id":54,"name":"Electrical Engineering","parent_subject_id":13,"call_number":"TK1","visible_textbooks_count":24,"url":"https://open.umn.edu/opentextbooks/subjects/electrical?locale=es"},{"id":13,"name":"Engineering \u0026 Technology","parent_subject_id":null,"call_number":"TA145","visible_textbooks_count":119,"url":"https://open.umn.edu/opentextbooks/subjects/engineering?locale=es"}],"publishers":[{"id":736,"url":"https://repository.lib.ncsu.edu/handle/1840.20/36776","year":null,"created_at":"2019-08-18T08:59:16.000-05:00","updated_at":"2019-08-18T08:59:16.000-05:00","name":"North Carolina State University Libraries"}],"formats":[{"id":1292,"type":"PDF","url":"https://repository.lib.ncsu.edu/handle/1840.20/36776","price":{"cents":0,"currency_iso":"USD"},"isbn":"978-1-4696-5697-7"},{"id":1293,"type":"Hardcopy","url":"https://www.uncpress.org/book/9781469656960/microwave-and-rf-design-volume-4/","price":{"cents":0,"currency_iso":"USD"},"isbn":"978-1-4696-5696-0"}],"rating":null,"textbook_reviews_count":0,"reviews":[],"url":"https://open.umn.edu/opentextbooks/textbooks/microwave-and-rf-design-modules?locale=es","updated_at":"2026-05-18T02:06:45.000-05:00"},{"id":755,"title":"Microwave and RF Design: Transmission Lines","edition_statement":null,"volume":null,"copyright_year":2019,"ISBN10":null,"ISBN13":null,"license":"Attribution-NonCommercial","language":"eng","accessibility_statement":null,"accessibility_features":"unknown","description":"Microwave and RF Design: Transmission Lines builds on the concepts of forward- and backward-traveling waves. Many examples are included of advanced techniques for analyzing and designing transmission line networks with microstrip lines primarily used in design examples. Coupled-lines are an important functional element in microwave circuits, and circuit equivalents of coupled lines are introduced as fundamental building blocks in design. The text and examples introduce the often hidden design requirements of mitigating parasitic effects and eliminating unwanted modes of operation. This book is suitable as both an undergraduate and graduate textbook, as well as a career-long reference book.","contributors":[{"id":4943,"contribution":"Author","primary":true,"corporate":false,"title":null,"first_name":"Michael","middle_name":null,"last_name":"Steer","location":"NC State","background_text":"Michael Steer is the Lampe Distinguished Professor of Electrical and Computer Engineering at North Carolina State University. He received his B.E. and Ph.D. degrees in Electrical Engineering from the University of Queensland. He is a Fellow of the IEEE and is a former editor-in-chief of IEEE Transactions on Microwave Theory and Techniques. He has authored more than 500 publications including twelve books. In 2009 he received a US Army Medal, “The Commander’s Award for Public Service.” He received the 2010 Microwave Prize and the 2011 Distinguished Educator Award, both from the IEEE Microwave Theory and Techniques Society."}],"subjects":[{"id":54,"name":"Electrical Engineering","parent_subject_id":13,"call_number":"TK1","visible_textbooks_count":24,"url":"https://open.umn.edu/opentextbooks/subjects/electrical?locale=es"},{"id":13,"name":"Engineering \u0026 Technology","parent_subject_id":null,"call_number":"TA145","visible_textbooks_count":119,"url":"https://open.umn.edu/opentextbooks/subjects/engineering?locale=es"}],"publishers":[{"id":734,"url":"https://repository.lib.ncsu.edu/handle/1840.20/36776","year":null,"created_at":"2019-08-18T08:31:58.000-05:00","updated_at":"2019-08-18T08:31:58.000-05:00","name":"North Carolina State University Libraries"}],"formats":[{"id":1288,"type":"PDF","url":"https://repository.lib.ncsu.edu/handle/1840.20/36776","price":{"cents":0,"currency_iso":"USD"},"isbn":"978-1-4696-5693-9"},{"id":1289,"type":"Hardcopy","url":"https://www.uncpress.org/book/9781469656922/microwave-and-rf-design-volume-2/","price":{"cents":0,"currency_iso":"USD"},"isbn":"978-1-4696-5692-2"}],"rating":null,"textbook_reviews_count":0,"reviews":[],"url":"https://open.umn.edu/opentextbooks/textbooks/microwave-and-rf-design-transmission-lines?locale=es","updated_at":"2026-05-18T02:06:42.000-05:00"},{"id":754,"title":"Microwave and RF Design: Radio Systems","edition_statement":null,"volume":null,"copyright_year":2019,"ISBN10":null,"ISBN13":null,"license":"Attribution-NonCommercial","language":"eng","accessibility_statement":null,"accessibility_features":"unknown","description":"Microwave and RF Design: Radio Systems is a circuits- and systems-oriented approach to modern microwave and RF systems. Sufficient details at the circuits and sub-system levels are provided to understand how modern radios are implemented. Design is emphasized throughout. The evolution of radio from what is now known as 0G, for early radio, through to 6G, for sixth generation cellular radio, is used to present modern microwave and RF engineering concepts. Two key themes unify the text: 1) how system-level decisions affect component, circuit and subsystem design; and 2) how the capabilities of technologies, components, and subsystems impact system design. This book is suitable as both an undergraduate and graduate textbook, as well as a career-long reference book.","contributors":[{"id":4942,"contribution":"Author","primary":true,"corporate":false,"title":null,"first_name":"Michael","middle_name":null,"last_name":"Steer","location":"NC State","background_text":"Michael Steer is the Lampe Distinguished Professor of Electrical and Computer Engineering at North Carolina State University. He received his B.E. and Ph.D. degrees in Electrical Engineering from the University of Queensland. He is a Fellow of the IEEE and is a former editor-in-chief of IEEE Transactions on Microwave Theory and Techniques. He has authored more than 500 publications including twelve books. In 2009 he received a US Army Medal, “The Commander’s Award for Public Service.” He received the 2010 Microwave Prize and the 2011 Distinguished Educator Award, both from the IEEE Microwave Theory and Techniques Society."}],"subjects":[{"id":54,"name":"Electrical Engineering","parent_subject_id":13,"call_number":"TK1","visible_textbooks_count":24,"url":"https://open.umn.edu/opentextbooks/subjects/electrical?locale=es"},{"id":13,"name":"Engineering \u0026 Technology","parent_subject_id":null,"call_number":"TA145","visible_textbooks_count":119,"url":"https://open.umn.edu/opentextbooks/subjects/engineering?locale=es"}],"publishers":[{"id":733,"url":"https://repository.lib.ncsu.edu/handle/1840.20/36776","year":null,"created_at":"2019-08-18T08:19:27.000-05:00","updated_at":"2019-08-18T08:19:27.000-05:00","name":"North Carolina State University Libraries"}],"formats":[{"id":1286,"type":"PDF","url":"https://repository.lib.ncsu.edu/handle/1840.20/36776","price":{"cents":0,"currency_iso":"USD"},"isbn":"978-1-4696-5691-5"},{"id":1287,"type":"Hardcopy","url":"https://www.uncpress.org/book/9781469656908/microwave-and-rf-design-volume-1/","price":{"cents":0,"currency_iso":"USD"},"isbn":"978-1-4696-5690-8"}],"rating":"5","textbook_reviews_count":1,"reviews":[{"id":33899,"first_name":"Yang","last_name":"Zhao","position":"Assistant Professor","institution_name":"Taylor University","comprehensiveness_rating":5,"comprehensiveness_review":"This textbook introduces the fundamental concepts of radio systems. It covers the topics of radio frequency systems, modulation, transmitters and receivers, and antennas and radio frequency links. The content prepares the students for further study on microwave and radio frequency design. This textbook is the first volume in a five-volume series on radio systems. The series could help in a junior or senior course on radio systems, antenna systems, or applied electromagnetic systems.","accuracy_rating":5,"accuracy_review":"This textbook presents the concepts, definitions, symbols, and examples of radio systems accurately in the text, equations, graphics, and tables. The references are listed in each chapter to help the readers explore more information.","relevance_rating":5,"relevance_review":"This textbook is up-to-date, as it is the third edition (2019). It discusses the most recent technology in radio systems like the 5th and 6th generations of radio systems. The theories in this textbook are fundamental, and they need to be covered now (2022) and in the future.","clarity_rating":5,"clarity_review":"This textbook explains the theories and applications of radio systems clearly in the text, equations, and graphics. Tables help to organize the information and compare the features of each item. The detailed solutions show how to solve the example problems.","consistency_rating":5,"consistency_review":"The symbols, terms, and concepts are consistent throughout the textbook. The text explains the meanings of the parameters in the equations and graphics. The terminologies in this book are identical to other textbooks and industry.","modularity_rating":5,"modularity_review":"This textbook contains five chapters. Each chapter focuses on one or two topics. Chapter one introduces the physical laws of electromagnetism, which is relatively short. Chapters two, three, four, and five have almost the same length. The instructors may divide up the content to design a course conveniently.","organization_rating":5,"organization_review":"This textbook is well organized. It introduces electromagnetism in chapter one and the mathematics of random processes in the appendix for background information. It discusses the theories such as modulation, transmitters/receivers, and antennas/radio frequency links in two, three, and four. The exercises problems with the selected answers are in each chapter.","interface_rating":5,"interface_review":"This textbook has a friendly interface. There is space on the side of the text for the readers to write notes. The graphics are clear in readable fonts and detailed captions. The curves in the plots are labeled to show their meaning. The text is compact to put the relative information together for readers.","grammatical_rating":5,"grammatical_review":"Grammatical errors are undiscovered.","cultural_rating":5,"cultural_review":"There is no cultural relevance issue, as this textbook focuses on the theories and applications of radio systems.","overall_rating":10,"overall_review":"The example problems and their solutions help the students understand the theories. The exercise problems encourage the students to review the content. The case study gives the students an idea of the practical problem in the industry. It would be better to provide some code (MATLAB probably) so that the students may regenerate some of the plots in the case study for better understanding.","created_at":"2022-06-07T15:33:50.000-05:00","updated_at":"2022-06-07T15:33:50.000-05:00"}],"url":"https://open.umn.edu/opentextbooks/textbooks/microwave-and-rf-design-radio-systems?locale=es","updated_at":"2026-05-18T02:06:41.000-05:00"},{"id":756,"title":"Microwave and RF Design: Networks","edition_statement":null,"volume":null,"copyright_year":2019,"ISBN10":null,"ISBN13":null,"license":"Attribution-NonCommercial","language":"eng","accessibility_statement":null,"accessibility_features":"unknown","description":"Microwave and RF Design: Networks presents the tools and techniques required to analyze and design microwave and RF circuits. Because of the finite speed of light, microwave circuits must be considered to be spatially distributed and so there is not a single ground. As such metrics that can be used to describe power flow are of most use. The topics covered include scattering parameters, signal flow graphs, and Smith charts. Acquiring expertise in these is the biggest barriers to a successful career in microwave and RF engineering. This book is suitable as both an undergraduate and graduate textbook, as well as a career-long reference book.","contributors":[{"id":4944,"contribution":"Author","primary":true,"corporate":false,"title":null,"first_name":"Michael","middle_name":null,"last_name":"Steer","location":"NC State","background_text":"Michael Steer is the Lampe Distinguished Professor of Electrical and Computer Engineering at North Carolina State University. He received his B.E. and Ph.D. degrees in Electrical Engineering from the University of Queensland. He is a Fellow of the IEEE and is a former editor-in-chief of IEEE Transactions on Microwave Theory and Techniques. He has authored more than 500 publications including twelve books. In 2009 he received a US Army Medal, “The Commander’s Award for Public Service.” He received the 2010 Microwave Prize and the 2011 Distinguished Educator Award, both from the IEEE Microwave Theory and Techniques Society."}],"subjects":[{"id":54,"name":"Electrical Engineering","parent_subject_id":13,"call_number":"TK1","visible_textbooks_count":24,"url":"https://open.umn.edu/opentextbooks/subjects/electrical?locale=es"},{"id":13,"name":"Engineering \u0026 Technology","parent_subject_id":null,"call_number":"TA145","visible_textbooks_count":119,"url":"https://open.umn.edu/opentextbooks/subjects/engineering?locale=es"}],"publishers":[{"id":735,"url":"https://repository.lib.ncsu.edu/handle/1840.20/36776","year":null,"created_at":"2019-08-18T08:43:50.000-05:00","updated_at":"2019-08-18T08:43:50.000-05:00","name":"North Carolina State University Libraries"}],"formats":[{"id":1290,"type":"PDF","url":"https://repository.lib.ncsu.edu/handle/1840.20/36776","price":{"cents":0,"currency_iso":"USD"},"isbn":"978-1-4696-5695-3"},{"id":1291,"type":"Hardcopy","url":"https://www.uncpress.org/book/9781469656946/microwave-and-rf-design-volume-3/","price":{"cents":0,"currency_iso":"USD"},"isbn":"978-1-4696-5694-6"}],"rating":null,"textbook_reviews_count":0,"reviews":[],"url":"https://open.umn.edu/opentextbooks/textbooks/microwave-and-rf-design-networks?locale=es","updated_at":"2026-05-18T02:06:42.000-05:00"},{"id":607,"title":"Direct Energy","edition_statement":null,"volume":null,"copyright_year":2018,"ISBN10":null,"ISBN13":null,"license":"Attribution-NonCommercial","language":"eng","accessibility_statement":null,"accessibility_features":"unknown","description":"Direct Energy Conversion discusses both the physics behind energy conversion processes and a wide variety of energy conversion devices. A direct energy conversion process converts one form of energy to another through a single process. The first half of this book surveys multiple devices that convert to or from electricity including piezoelectric devices, antennas, solar cells, light emitting diodes, lasers, thermoelectric devices, and batteries. In these chapters, physical effects are discussed, terminology used by engineers in the discipline is introduced, and insights into material selection is studied. The second part of this book puts concepts of energy conversion in a more abstract framework. These chapters introduce the idea of calculus of variations and illuminate relationships between energy conversion processes.","contributors":[{"id":4675,"contribution":"Author","primary":true,"corporate":false,"title":null,"first_name":"Andrea","middle_name":"M.","last_name":"Mitofsky","location":null,"background_text":"Andrea M. Mitofsky received her B.S., M.S., and Ph.D. degrees in Electrical Engineering from the University of Illinois at Urbana-Champaign. In 2008, she graduated with her Ph.D. degree and began teaching at Trine University in Angola, Indiana. She is currently an Associate Professor in the Electrical and Computer Engineering department at Trine University."}],"subjects":[{"id":54,"name":"Electrical Engineering","parent_subject_id":13,"call_number":"TK1","visible_textbooks_count":24,"url":"https://open.umn.edu/opentextbooks/subjects/electrical?locale=es"},{"id":13,"name":"Engineering \u0026 Technology","parent_subject_id":null,"call_number":"TA145","visible_textbooks_count":119,"url":"https://open.umn.edu/opentextbooks/subjects/engineering?locale=es"}],"publishers":[{"id":585,"url":"https://www.trine.edu/books/directenergy.aspx/","year":null,"created_at":"2018-09-16T10:56:09.000-05:00","updated_at":"2020-06-25T12:47:17.000-05:00","name":"A.T. Still University"}],"formats":[{"id":1033,"type":"PDF","url":"https://www.trine.edu/books/documents/de_text1.0.0.pdf","price":{"cents":0,"currency_iso":"USD"},"isbn":null}],"rating":"5","textbook_reviews_count":1,"reviews":[{"id":3380,"first_name":"Jeffrey","last_name":"Phillips","position":"Assistant Professor","institution_name":"Hanover College","comprehensiveness_rating":5,"comprehensiveness_review":"This book covers a very broad range of direct energy conversion devices: everything from photovoltaics to LEDs and capacitors.  ","accuracy_rating":5,"accuracy_review":"I can only comment on the Photovoltaic chapter, as that is the only one I used in a course on Power Generation Technologies, but I found it to be quite accurate.  I did not notice any factual errors or typos in the text.","relevance_rating":5,"relevance_review":"This book focuses on theory and fundamentals, and therefore should stand the test of time quite well.  For more commercial aspects of photovoltaic power systems, I used recent reports issued by the US Dept of Energy that monitor the state of the solar PV market.  This textbook is what I used to teach my students the fundamentals of how PVs work and how they are constructed.  ","clarity_rating":5,"clarity_review":"I am a Mechanical Engineer, and therefore not an expert on the movement of electrons or Quantum Physics.  Nevertheless, I was able to understand the text.  It also contains sufficient background information on the nature of solar radiation and wave energy in general that students who do not have much of knowledge on those topics could come up to speed.  There is also a section on the various types of PV cells, which helped my students when they were reading Dept of Energy reports that discussed \"thin film\" and \"multi-junction\" cells but have no background on what those are.","consistency_rating":5,"consistency_review":"Again, I can only speak about the chapter on Photovoltaics, but I did not see any instances of inconsistencies. ","modularity_rating":5,"modularity_review":"I can definitely speak to this, as I only assigned this book to my students for use in teaching them about photovoltaics.  Consequently, I can state without reservation that sub-sections of this book can be easily used on a stand-alone basis.  I should also add that I feel this is another advantage of using open source textbooks.  I would never ask my students to buy a textbook from which I only intended to use one chapter - that would not be cost-effective.  However, that is not a concern when using open source textbooks.  Since the only \"cost\" to the students is the time it takes to download the book, there is little downside to asking them to use another open source book to supplement the main textbook in the course.","organization_rating":5,"organization_review":"As I have stated elsewhere, I only used the PV chapter in my course, but the organization of the textbook made it very easy to find the information that I wanted my students to read and understand.","interface_rating":4,"interface_review":"There were no issues that I saw.  However, the graphics in this textbook are more rudimentary than would you will find in a for-profit textbook.  There is also a higher ratio of text to graphics than I am used to seeing in undergraduate level textbooks.  Perhaps that is because the book is also aimed for graduate level courses?  There is no \"how to use this textbook\" preface for instructors in the book, so I am not sure what was the audience the author was aiming at.  In fact, the first page of the book is the table of contents, which makes for a less professional look.","grammatical_rating":5,"grammatical_review":"Did not find any instances of grammatical errors.","cultural_rating":5,"cultural_review":"One would not expect any issues of this type in an engineering textbook that is discussing scientific fundamentals, and I did not detect any.","overall_rating":10,"overall_review":"Other chapters in this book cover Capacitors, Piezoelectric Devices, Hall Effect Devices, Antennas, Lamps, LEDs, Lasers, Thermoelectrics, Batteries and Fuel Cells.  The first three topics are subjects that I cover in an Instrumentation course, so I will consider using this as a supplemental textbook in that course.  In summary, this wide-ranging textbook could be of value in a wide number of engineering courses.  I would encourage instructors to give it a look, and remember that even if you find 90% of the book to not be applicable to your course, there is little downside to asking students to use the 10% that is applicable.","created_at":"2019-12-14T12:27:10.000-06:00","updated_at":"2019-12-14T12:27:10.000-06:00"}],"url":"https://open.umn.edu/opentextbooks/textbooks/direct-energy?locale=es","updated_at":"2026-05-18T02:06:23.000-05:00"},{"id":573,"title":"Semiconductor Devices: Theory and Application","edition_statement":null,"volume":null,"copyright_year":2018,"ISBN10":null,"ISBN13":"9781796543537","license":"Attribution-NonCommercial-ShareAlike","language":"eng","accessibility_statement":"","accessibility_features":"","description":"The goal of this text, as its name implies, is to allow the reader to become proficient in the analysis and design of circuits utilizing discrete semiconductor devices. It progresses from basic diodes through bipolar and field effect transistors. The text is intended for use in a first or second year course on semiconductors at the Associate or Baccalaureate level. In order to make effective use of this text, students should have already taken coursework in basic DC and AC circuits, and have a solid background in algebra and trigonometry along with exposure to phasors. Calculus is used in certain sections of the text but for the most part it is used for equation derivations and proofs, and is kept to a minimum. For students without a calculus background these sections may be skipped without a loss of continuity. There is also a lab manual for this textbook.","contributors":[{"id":4596,"contribution":"Author","primary":true,"corporate":false,"title":null,"first_name":"James","middle_name":"M.","last_name":"Fiore","location":"Mohawk Valley Community College","background_text":"James M. Fiore My name is Jim and I'm the resident dissident, programmer and author. I've been a college professor for many years teaching in the areas of electrical engineering technology, computer programming and the science of sound. I'm also a musician and an endurance athlete. I established dissidents in the late 1980s as a way to offer various software items that I created, figuring that other people might find them useful as well. Some of these have been commercial and some have been freeware. I also write a lot, including published college text books and lab manuals. Recently, the open educational resource movement has gained momentum (no doubt at least partly propelled by the rising costs of college tuition and texts)."}],"subjects":[{"id":54,"name":"Electrical Engineering","parent_subject_id":13,"call_number":"TK1","visible_textbooks_count":24,"url":"https://open.umn.edu/opentextbooks/subjects/electrical?locale=es"},{"id":13,"name":"Engineering \u0026 Technology","parent_subject_id":null,"call_number":"TA145","visible_textbooks_count":119,"url":"https://open.umn.edu/opentextbooks/subjects/engineering?locale=es"}],"publishers":[{"id":546,"url":"http://www.dissidents.com/books.htm","year":null,"created_at":"2018-09-07T12:22:40.000-05:00","updated_at":"2018-09-07T12:22:40.000-05:00","name":"dissidents"}],"formats":[{"id":935,"type":"PDF","url":"http://www.dissidents.com/resources/SemiconductorDevices.pdf","price":{"cents":0,"currency_iso":"USD"},"isbn":null},{"id":1949,"type":"ODF","url":"http://www.dissidents.com/resources/EmbeddedControllers.odt","price":{"cents":0,"currency_iso":"USD"},"isbn":null},{"id":1953,"type":"Hardcopy","url":"https://www.amazon.com/dp/1796543535","price":{"cents":0,"currency_iso":"USD"},"isbn":null}],"rating":"4.5","textbook_reviews_count":1,"reviews":[{"id":33547,"first_name":"Yang","last_name":"Zhao","position":"Assistant Professor","institution_name":"Taylor University","comprehensiveness_rating":5,"comprehensiveness_review":"This book discusses the features and applications of the fundamental semiconductor devices such as diodes, bipolar junction transistors, junction field effect transistors, metal oxide semiconductor field effect transistors, and insulated gate bipolar transistors. These are the basic devices that are used in industry and they should be covered in an introductory semiconductor or electronic course.","accuracy_rating":4,"accuracy_review":"The features and applications of the semiconductor devices are descripted accurately by the text, the equations, and the graphics in this book.\r\n\r\nSome web links are included in this book for the readers to explore the details of some content. However, these links might be removed any time. For example, the link to the datasheet of 1N4148 is invalid now (as December 2021).","relevance_rating":4,"relevance_review":"The semiconductor devices that are discussed in this book are the popular ones in industry. They are not likely to be discarded in the near future.\r\n\r\nThe example semiconductor devices might be discontinued by the manufacturers, as the new models will replace the old ones.","clarity_rating":5,"clarity_review":"This book introduces the basic concepts with clear definitions and terminologies. It explains the theory and models with mathematical equations and figures. It demonstrates the applications with example problems and computer simulation results.","consistency_rating":5,"consistency_review":"Some variable names are listed in Chapter 1 and they are used through the book. The parameter names, their units, and their typical values are listed under some of the equations. The terminologies in this book are the common ones that are used in other books and in industry.","modularity_rating":5,"modularity_review":"Each chapter discusses one dedicated topic, and it is easy for the readers to focus on the content. The length of the chapters are almost the same, and it is easy for the instructors to design a course using this book.","organization_rating":5,"organization_review":"This book is well organized. It introduces the semiconductor materials at the beginning. It discusses the features and applications of the specific semiconductor devices next. It talks about the concept of the amplifiers. Then it elaborates the specific amplifier circuits using different semiconductor devices.","interface_rating":4,"interface_review":"It is a good arrangement to show some of the figures, circuits, and plots by the side of the text and equations, and it is convenient for the readers to read the text while observing the graphics.\r\n\r\nThe curves in the same plot are only differentiated by color. If someone would like to print the book in black and write ink, it is difficult to tell which curve represents which signal.","grammatical_rating":5,"grammatical_review":"There are no grammatical errors found.","cultural_rating":5,"cultural_review":"The cultural relevance issue is not found, since the book is focused on the semiconductor devices, the circuit theories, and the electrical techniques.","overall_rating":9,"overall_review":"There are review questions or problem sets after each chapter with some answers, which makes this book a good textbook to train the students.\r\n\r\nThe brief introduction to the history of the semiconductor devices and the inventors makes the book interesting to read. This information could be discussed with the students to engage their learning.\r\n\r\nOverall, I would recommend adopting this book in an introductory semiconductor or electronic course.","created_at":"2021-12-16T10:57:53.000-06:00","updated_at":"2021-12-23T14:21:33.000-06:00"}],"url":"https://open.umn.edu/opentextbooks/textbooks/semiconductor-devices-theory-and-application?locale=es","updated_at":"2026-05-18T02:10:15.000-05:00"},{"id":574,"title":"Operational Amplifiers \u0026 Linear Integrated Circuits: Theory and Application","edition_statement":"3e","volume":null,"copyright_year":2018,"ISBN10":null,"ISBN13":null,"license":"Attribution-NonCommercial-ShareAlike","language":"eng","accessibility_statement":null,"accessibility_features":"unknown","description":"The goal of this text, as its name implies, is to allow the reader to become proficient in the analysis and design of circuits utilizing modern linear ICs. It progresses from the fundamental circuit building blocks through to analog/digital conversion systems. The text is intended for use in a second year Operational Amplifiers course at the Associate level, or for a junior level course at the Baccalaureate level. In order to make effective use of this text, students should have already taken a course in basic discrete transistor circuits, and have a solid background in algebra and trigonometry, along with exposure to phasors. Calculus is used in certain sections of the text, but for the most part, its use is kept to a minimum. For students without a calculus background, these sections may be skipped without a loss of continuity. (The sole exception to this being Chapter Ten, Integrators and Differentiators, which hinges upon knowledge of calculus.) There is also a lab manual for this textbook.","contributors":[{"id":4600,"contribution":"Author","primary":true,"corporate":false,"title":null,"first_name":"James","middle_name":null,"last_name":"Fiore","location":"Mohawk Valley Community College","background_text":"James M. Fiore My name is Jim and I'm the resident dissident, programmer and author. I've been a college professor for many years teaching in the areas of electrical engineering technology, computer programming and the science of sound. I'm also a musician and an endurance athlete. I established dissidents in the late 1980s as a way to offer various software items that I created, figuring that other people might find them useful as well. Some of these have been commercial and some have been freeware. I also write a lot, including published college text books and lab manuals. Recently, the open educational resource movement has gained momentum (no doubt at least partly propelled by the rising costs of college tuition and texts)."}],"subjects":[{"id":54,"name":"Electrical Engineering","parent_subject_id":13,"call_number":"TK1","visible_textbooks_count":24,"url":"https://open.umn.edu/opentextbooks/subjects/electrical?locale=es"},{"id":13,"name":"Engineering \u0026 Technology","parent_subject_id":null,"call_number":"TA145","visible_textbooks_count":119,"url":"https://open.umn.edu/opentextbooks/subjects/engineering?locale=es"}],"publishers":[{"id":547,"url":"http://www.dissidents.com/books.htm","year":null,"created_at":"2018-09-07T12:22:40.000-05:00","updated_at":"2018-09-07T12:22:40.000-05:00","name":"dissidents"}],"formats":[{"id":937,"type":"PDF","url":"http://www.dissidents.com/resources/OperationalAmplifiersAndLinearICs_3E.pdf","price":{"cents":0,"currency_iso":"USD"},"isbn":null},{"id":1950,"type":"ODF","url":"http://www.dissidents.com/resources/OperationalAmplifiersAndLinearICs_3E.odt","price":{"cents":0,"currency_iso":"USD"},"isbn":null},{"id":1952,"type":"Hardcopy","url":"https://www.amazon.com/dp/1796856894","price":{"cents":0,"currency_iso":"USD"},"isbn":null}],"rating":"5","textbook_reviews_count":2,"reviews":[{"id":3963,"first_name":"Dong Kyeong","last_name":"Lee","position":"Graduate Student","institution_name":"University of Colorado Boulder","comprehensiveness_rating":5,"comprehensiveness_review":"The textbook is a great resource to learn about amplifiers, circuits, and filters. The contents start at a very basic level, then go into greater depth using various examples. Equations provided are followed by examples, and signal analysis is accompanied by data corresponding to both ideal and expected results. Also, all of the nomenclature are clearly defined before being mentioned. Furthermore, a summary page in the appendix is helpful for readers reviewing conceptual contents.","accuracy_rating":5,"accuracy_review":"The diagrams are clear, and their formats are consistent throughout the book. Also, a lot of the supplementary data are from datasheets, which are clearly referenced in the appendix section.","relevance_rating":5,"relevance_review":"The contents of the textbook are up-to-date, and its accuracy and relevance are not expected to change significantly in the future. This is because the focus of the contents are on fundamental concepts.","clarity_rating":5,"clarity_review":"The textbook is clearly written, and the gradual introduction of new concepts makes the content comprehension easy. Also, most of the introduced concepts and ideas are backed by examples and actual data for clarity.","consistency_rating":5,"consistency_review":"The figures and the equations used in the book are consistent to minimize confusion.","modularity_rating":5,"modularity_review":"The book is split into 12 large chapters, and several subsections. This makes the reading of individual subsections convenient for the students. Also, the division of material allows the book to be a great supplementary material for courses. In addition, some of the sections dealing with actual data can serve as great examples for practical classes and lectures.","organization_rating":5,"organization_review":"The topics start at the very basics, then become more detailed and specific further into the book. Therefore, the topics are easy to understand and follow.","interface_rating":5,"interface_review":"The visual contents in the book, such as equations and graphs, are clear and error-free. An empty right column allows the figure labeling to be clear as well.","grammatical_rating":5,"grammatical_review":"There were no grammatical errors identified during the review of the textbook.","cultural_rating":5,"cultural_review":"As it is an academic textbook focused on introducing engineering concepts, no cultural or ethical issues were identified for this book.","overall_rating":10,"overall_review":null,"created_at":"2020-06-11T16:17:37.000-05:00","updated_at":"2020-06-11T16:17:37.000-05:00"},{"id":35687,"first_name":"Jiangqi","last_name":"Hu","position":"Assistant Professor","institution_name":"Eastern New Mexico University","comprehensiveness_rating":5,"comprehensiveness_review":"The text covers the subject thoroughly, offering enough questions and problems to help students truly grasp what they need to know.","accuracy_rating":5,"accuracy_review":"The content is accurate, unbiased, and clear.","relevance_rating":4,"relevance_review":"The content remains up-to-date and easy to update in the future.","clarity_rating":5,"clarity_review":"The prose is accessible and includes necessary equation derivations to explain the logic, along with many examples to help students understand the concepts.","consistency_rating":5,"consistency_review":"The text maintains strict internal consistency regarding terminology and framework, preventing student confusion.","modularity_rating":5,"modularity_review":"The chapters are structured to be easily divisible, allowing instructors to assign specific reading sections without disrupting the flow.","organization_rating":5,"organization_review":"Topics are presented in a logical, clear fashion that builds naturally from basic components to complex systems.","interface_rating":5,"interface_review":"The digital text is free of navigation issues, image distortion, or other display features that might distract the reader.","grammatical_rating":5,"grammatical_review":"The writing is professional, polished, and contains no grammatical errors.","cultural_rating":5,"cultural_review":"The text is culturally neutral and uses inclusive, appropriate examples throughout.","overall_rating":10,"overall_review":null,"created_at":"2025-12-03T13:23:41.000-06:00","updated_at":"2025-12-03T13:23:41.000-06:00"}],"url":"https://open.umn.edu/opentextbooks/textbooks/operational-amplifiers-linear-integrated-circuits-theory-and-application-3e?locale=es","updated_at":"2026-05-18T02:10:15.000-05:00"}],"links":{"self":"https://open.umn.edu/opentextbooks/subjects/electrical.json?locale=es?page=1","total_pages":3,"total_count":25,"next":"https://open.umn.edu/opentextbooks/subjects/electrical.json?locale=es?page=2"}}