Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Nathan O. Sokal"'
A majority of people now have a digital mobile device whether it be a cell phone, laptop, or blackberry. Now that we have the mobility we want it to be more versatile and dependable; RF power amplifiers accomplish just that. These amplifiers take a s
Autor:
Nathan O. Sokal
Publikováno v:
IEEE Microwave Magazine. 19:22-25
This is the text of Nat Sokal's speech of 15 November 2011 at the Polytechnic University of Madrid, Spain, upon receiving the Doctor Honors Causa (honorary doctorate) degree.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e9641d5d82dc37e5e960a9dc9e69441
https://doi.org/10.1109/mmm.2018.2823241
https://doi.org/10.1109/mmm.2018.2823241
Autor:
Arturo Mediano, Nathan O. Sokal
Publikováno v:
IEEE Transactions on Power Electronics. 28:5215-5221
This paper shows a new class- $E$ amplifier topology with the objective to increase the nominal class- $E$ output power for a given voltage and current stress on the power transistor. To obtain that result, a parallel LC resonator is added to the loa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92144cb38ac77262d2c25ddb6447cc70
https://doi.org/10.1109/tpel.2013.2242097
https://doi.org/10.1109/tpel.2013.2242097
Publikováno v:
IEEE Transactions on Power Electronics. 19:918-927
A new four-switch full-bridge dc-dc converter topology is especially well-suited for power converters operating from high input voltage: it imposes only half of the input voltage across each of the four switches. The two legs of a full-bridge convert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::658ac163364b4c13781f3a145b7a3820
https://doi.org/10.1109/tpel.2004.830092
https://doi.org/10.1109/tpel.2004.830092
Autor:
Nick Pothecary, Peter M. Asbeck, Steve Cripps, Zoya Popovic, Peter B. Kenington, Frederick H. Raab, Nathan O. Sokal, John F. Sevic
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 50:814-826
The generation of RF/microwave power is required not only in wireless communications, but also in applications such as jamming, imaging, RF heating, and miniature dc/dc converters. Each application has its own unique requirements for frequency, bandw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7530792d22b00ab2fdc314982770b6c1
https://doi.org/10.1109/22.989965
https://doi.org/10.1109/22.989965
Combining solid theoretical discussions with practical design examples, this book is an essential reference on developing RF and microwave switchmode power amplifiers. With this book you will be able to: - Design high-efficiency RF and microwave powe
Redefining the optimum RF Class-E switch-voltage waveform, to correct a long-used incorrect waveform
Autor:
Nathan O. Sokal, Arturo Mediano
Publikováno v:
2013 IEEE MTT-S International Microwave Symposium Digest (MTT).
In the 1970s, authors referred to the Class-E RF power amplifier circuit as “optimum” Class E if the switch-voltage waveform had zero voltage and zero voltage-slope at the switch turn-on time. “Optimum” was a misnomer; the correct term for th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c84e416133ed0ae19630c992b4453e61
https://doi.org/10.1109/mwsym.2013.6697522
https://doi.org/10.1109/mwsym.2013.6697522
Autor:
Arturo Mediano, Nathan O. Sokal
Publikováno v:
2012 IEEE/MTT-S International Microwave Symposium Digest.
This paper shows a Class-E RF power amplifier designed to obtain a flat-top transistor-voltage waveform whose peak value is 81% of the peak value of the voltage of a “Classical” Class-E amplifier.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebce5f72fa6c78c1fdd29c8c001c3bf1
https://doi.org/10.1109/mwsym.2012.6259441
https://doi.org/10.1109/mwsym.2012.6259441
In Chapter 9, the different alternative and mixed-mode configurations of high efficiency power amplifiers are presented. A Class-DE power amplifier is based on the combination of a voltage-switching Class-D mode with Class-E switching conditions, thu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9fc9b511b5829113e143ebb52ba6427
https://doi.org/10.1016/b978-0-12-415907-5.00009-2
https://doi.org/10.1016/b978-0-12-415907-5.00009-2
Chapter 10 describes the historical aspect of the Doherty approach to the power amplifier design and modern trends in Doherty amplifier design techniques using multistage and asymmetric multi-way architectures. To increase efficiency over the power-b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6cec7778fe9e6c499df7e24ff0ffff0
https://doi.org/10.1016/b978-0-12-415907-5.00010-9
https://doi.org/10.1016/b978-0-12-415907-5.00010-9