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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| EMCJ, WPT (Joint) |
2014-01-31 13:25 |
Saga | Saga Univ. | Analytical design for resonant inductively coupled wireless power transfer system with class-E^2 DC-DC converter Tomoharu Nagashima, Kazuhide Inoue (Chiba Univ.), Xiuqin Wei (Fukuoka Univ.), Hiroo Sekiya (Chiba Univ.) |
This paper presents a resonant inductive coupling wireless power transfer (RIC-WPT) system with a class-E^2 dc-dc conver... [more] | |
| MW, AP (Joint) |
2013-09-12 13:25 |
Tokyo | NHK Science Tech. Research Lab. | Fundamental limit and its realization for injection-locking technique
-- Applications -- Yoji Yabe, Shusaku Iikura, Kazuki Nakada, Tomoyuki Morikawa, Temuulen Enkhee, Ryohei Nagatome, Hisa-Aki Tanaka (UEC)  MW2013-89 |
Since injection-locking improves frequency stability in the oscillator, its researches have been steadily progressed for... [more] | MW2013-89 pp.5-10 |
| EE, WPT, IEE-SPC (Joint) [detail] |
2013-07-25 13:35 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A Novel Analysis of Direct Current Resonance Class-E Multi-Resonant ZVS Wireless Power Transfer System Operated in 10MHz Range Toru Yoshikawa (Doshisha Univ.), Tatsuya Hosotani (Murata Manufacturing), Koji Fujiwara (Doshisha Univ.) EE2013-9 |
We present a novel analysis of Direct Current Resonance class -E multi-resonant ZVS wireless power transfer system ope... [more] | EE2013-9 pp.7-12 |
| MW | 2013-05-31 15:00 |
Kyoto | Ryukoku Univ. | A 2.1GHz-Band 20W GaN Power Amplifier with Class-F Circuit Considering Parasitic Elements Keigo Nakatani, Toshio Ishizaki (Ryukoku Univ.) MW2013-24 |
In this paper, a design method of Class-F power amplifier considering parasitic elements will be shown. Recently, many s... [more] | MW2013-24 pp.83-87 |
| NLP | 2013-05-28 11:00 |
Fukuoka | Event hall, Central Library, Fukuoka University | Design of class-E inverter with inductive impedance inverter for achieving zero voltage switching at any load resistance Tomoharu Nagashima (Chiba Univ.), Xiuqin Wei, Tadashi Suetsugu (Fukuoka Univ.), Hiroo Sekiya (Chiba Univ.) NLP2013-22 |
This paper presents a design of the class-E inverter with an inductive impedance inverter for achieving zero voltage swi... [more] | NLP2013-22 pp.71-75 |
| NLP | 2013-03-14 13:25 |
Chiba | Nishi-Chiba campus, Chiba Univ. | Analysis of Class-E_M Amplifier Taking into Acount Drain Current Fall Time Zhicai Zhang, Tomoharu Nagashima (Chiba Univ.), Xiuqin Wei (Fukuoka Univ.), Hiroo Sekiya (Chiba Univ.) NLP2012-151 |
The class EM amplifier is composed of class E amplifier and auxiliary circuit output harmonic. The class EM amplifier ac... [more] | NLP2012-151 pp.37-42 |
| NC, NLP | 2013-01-25 17:40 |
Hokkaido | Hokkaido University Centennial Memory Hall | Bifurcation Phenomena of the Class-EM Amplifier with One Input Signal Ryuta Nakamura (Oita Univ.), Xiuqin Wei (Fukuoka Univ.), Takuji Kousaka (Oita Univ.), Hiroo Sekiya (Chiba Univ.) NLP2012-143 NC2012-133 |
The class-E$_{\textrm M}$ amplifier with one input signal is an improved version of the class-E$_{\textrm M}$ amplifier ... [more] | NLP2012-143 NC2012-133 pp.223-226 |
| MW | 2012-12-13 14:00 |
Yamanashi | Univ. of Yamanashi | A study on application of Class-E amplifier to EPWM transmitter Naoki Oyama, Makoto Taromaru (Fukuoka Univ.) MW2012-128 |
The PAE of Class-E/F such as switching-mode amplifiers is superior, but it is nonlinear. EPWM is one of the architectu... [more] |
MW2012-128 pp.7-12 |
| NLP | 2012-04-20 15:40 |
Mie | Ise City Plaza | Analytical Derivation of Power Conversion Efficiency for Class-E Amplifier With Any Q Tomoharu Nagashima, Xiuqin Wei (Chiba Univ.), Takuji Kousaka (Oita Univ.), Hiroo Sekiya (Chiba Univ.) NLP2012-23 |
This paper presents analytical derivation of power conversion efficiency for the class-E amplifier with any Q. For obt... [more] |
NLP2012-23 pp.115-120 |
| NLP | 2011-11-09 14:05 |
Okinawa | Miyako Island Marine Terminal | Analytical Derivation of Switching-pattern Distribution for Class-E Amplifier Using Bifurcation Theory Tomoharu Nagashima, Xiuqin Wei (Chiba Univ.), Takuji Kousaka (Oita Univ.), Hiroo Sekiya (Chiba Univ.) NLP2011-100 |
This paper presents analytical switching-pattern distributions for the class-E amplifier. For obtaining the switching-pa... [more] | NLP2011-100 pp.49-54 |
| RCS, NS (Joint) |
2011-07-22 11:45 |
Hokkaido | Asahikawa Civic Culture Hall | Fundamental Study on Drain Efficiency of EPWM Transmitter using Class-E_M Power Amplifier Naoki Oyama (Fukuoka Univ.), Hiroo Sekiya (Chiba Univ.), Tadashi Suetsugu, Makoto Taromaru (Fukuoka Univ.) RCS2011-101 |
Drain efficiency of EPWM (envelope pulse width modulation) transmitter composed of a class-E_M amplifier is evaluated by... [more] | RCS2011-101 pp.157-162 |
| NLP | 2011-07-02 09:35 |
Hokkaido | Shari-cho Kohminkan: Yme-hall Shiretoko | Dynamic Behavior of the Class-EM Amplifier with One Input Signal Ryuta Nakamura (Oita Univ.), Hiroo Sekiya (Chiba Univ.), Takuji Kousaka (Oita Univ.) NLP2011-53 |
The class-EM amplifier took notice; because of keeps high efficiency and high frequency. The class-EM amplifier that dri... [more] | NLP2011-53 pp.161-164 |
| NLP | 2011-07-02 10:25 |
Hokkaido | Shari-cho Kohminkan: Yme-hall Shiretoko | Power Conversion Efficiency of Class-E Power Amplifier Outside Nominal Operation Tomoharu Nagashima, Xiuqin Wei, Hiroo Sekiya (Chiba Univ.) NLP2011-55 |
This paper gives analytical expressions for the output power and the power conversion efficiency of the class-E power a... [more] |
NLP2011-55 pp.171-175 |
| EMCJ, MW, IEE-MAG | 2009-10-22 15:00 |
Iwate | Iwate Univ. | S-band, Internally Matched Class-E GaN HEMT Amplifier Yukio Takahashi, Takashi Higuchi, Kazutoshi Masuda (Toshiba Corp.) EMCJ2009-50 MW2009-99 |
A Class-E amplifier is designed at S-band with our inhouse developed GaN HEMTs. The Class-E amplifier generally describe... [more] | EMCJ2009-50 MW2009-99 pp.37-40 |
| EE | 2009-07-30 13:00 |
Shimane | Development of a Fully Solid State Wide band Short-wave Transmitter of PSM modulation method using DC to RF conversion technology Masahiko Yamazoe (NHK), Kazuhisa Haeiwa (Hiroshima City Univ.), Shoji Hirose (NHK), Masayoshi Fukumoto (NEC), Hideo Sato (NIHON KOUSHUHA) EE2009-7 |
We developed an evolutional wideband (3M～26MHz) short-wave transmitter with an output of 1kW using PSM (Pulse Step Modul... [more] | EE2009-7 pp.1-6 |
|
| MW | 2008-08-29 15:25 |
Osaka | Osaka-Univ. (Toyonaka) | Doherty power amplifier using GaN class-E device Takaaki Ishikawa, Kazunori Kashimura, Eiki Takahashi, Nobuyuki Adachi (JRC) MW2008-101 |
A Doherty amplifier for base stations using an internally class-E matched GaN packaged device has been developed. The cl... [more] | MW2008-101 pp.123-128 |
| EE | 2007-11-19 13:55 |
Tokyo | [Special Talk]
Hight efficiency amplifiers in MF and HF transmitter Masahiko Yamazoe (NHK), Kazuhisa Haeiwa (HIroshima City Univ), Hiroyuki Nishimori, Kouichi Misu (NHK) EE2007-41 |
This paper describes hight efficiency amplifiers in MF and HF transmitter. First , we fabricated a new power amplifier o... [more] | EE2007-41 pp.39-44 |
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| EMCJ, MW | 2007-10-26 09:35 |
Miyagi | Tohoku University | A basic study on EER transmitter with burst-width envelope modulation based on triangle-wave PWM Toshiro Kodera, Nobuhiko Ando, Makoto Taromaru (ATR) EMCJ2007-67 MW2007-114 |
The improvement of efficiency on power amplifiers (PAs) has been a major assignment from dc to microwave region. The c... [more] |
EMCJ2007-67 MW2007-114 pp.77-82 |
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