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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| ED, MW | 2024-01-25 16:20 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
A GaN Power Amplifier Module for 5G Massive MIMO Base-station Applications Satoru Honda, Akio Matsushita, Eri Teranishi, katsuya Kato, Shuichi Sakata, kazuya Yamamoto, Tetsuo Kunii (Mitsubishi Electric)  ED2023-70 MW2023-162 |
This report describes a 16W-class GaN power amplifier module prototyped for 5G Massive-MIMO base-station applications. T... [more] | ED2023-70 MW2023-162 pp.19-22 |
| AP, WPT (Joint) |
2024-01-17 14:25 |
Niigata | Tokimate, Niigata University (Primary: On-site, Secondary: Online) |
2.45 GHz High-Efficiency Power Amplifier for Integration and Cooperation of Telecommunication and Wireless Power Transfer Yuki Takagi, Yuta Nakamoto, Takashi Hirakawa, Yoshichika Ohta, Naoki Hasegawa (SB) WPT2023-30 |
In this paper, we present a transmitter configuration of wireless devices that is optimized for both information transmi... [more] | WPT2023-30 pp.1-5 |
| MW | 2023-11-16 11:15 |
Okinawa | Nago City Industrial Support Center (Okinawa) (Primary: On-site, Secondary: Online) |
Dual-Band Asymmetric Doherty Amplifier with T-shaped Stubs Yuki Takagi, Yoshichika Ohta (SB) MW2023-127 |
In this paper, we propose a design method for a dual-band asymmetric Doherty amplifier at 1.8 GHz(Band3)/2.1 GHz (Band1)... [more] | MW2023-127 pp.7-12 |
| WPT | 2023-03-16 11:50 |
Kyoto | Kyoto-Univ. (Uji campus) (Primary: On-site, Secondary: Online) |
Operating Analysis of Doherty-Outphasing Hybrid Power Amplifier on Saturation Region Daisuke Yasunobu, Ren Furumoto, kenjirou Nishikawa (Kagoshima Univ.) WPT2022-33 |
In WiCoPT systems, which can transmit information and power simultaneously, modulated signals with high PAPR are used. T... [more] | WPT2022-33 pp.14-18 |
| MW | 2023-03-02 13:25 |
Tottori | Tottori Univ. (Primary: On-site, Secondary: Online) |
Characteristic Improvement at Back-Off Region by Three-Power-Level Optimization for 3.7-GHz GaN HEMT Doherty Amplifier Masataka Yamamoto, Kazuhiko Honjo, Yoichiro Yakayama, Ryo Ishikawa (UEC) MW2022-163 |
Increasing the communication capacity and speed is required for recent wireless communication systems. Digital modulated... [more] | MW2022-163 pp.37-41 |
| MW | 2022-11-15 13:25 |
Nagasaki | Fukue-Bunka-Kaikan (Primary: On-site, Secondary: Online) |
Doherty-Outphasing Hybrid power amplifier for WiCoPT WPT system Ren Furumoto, Daisuke Yasunobu, Kenjiro Nishikawa (Kagoshima Univ.) MW2022-112 |
WiCoPT system, which can transfer data and power simultaneously, employs modulated signals. Therefore, a transmitter of ... [more] | MW2022-112 pp.19-24 |
| EMT, MW, OPE, EST, MWP, THz, IEE-EMT [detail] | 2020-07-17 14:15 |
Online | Online | Study on Series Connected Harmonic-Tuned GaN HEMT Doherty Power Amplifier for Directly Exciting a Loop Antenna of OAM communication with Balanced Mode Masahiro Nakada, Yoichiro Takayama, Ryo Ishikawa, Kazuhiko Honjo (UEC) EMT2020-24 MW2020-33 OPE2020-19 EST2020-24 MWP2020-24 |
A series-connected harmonic-tuned GaN HEMT Doherty amplifier (DA) has been developed for directly exciting a loop antenn... [more] | EMT2020-24 MW2020-33 OPE2020-19 EST2020-24 MWP2020-24 pp.101-106 |
| NS, ICM, CQ, NV (Joint) |
2019-11-21 09:55 |
Hyogo | Rokkodai 2nd Campus, Kobe Univ. | Deep Neural Network Based Distortion Compensation for Doherty Amplifiers Yoshimasa Egashira, Reina Hongyo, Keiichi Yamaguchi (Toshiba) CQ2019-89 |
The problem with Doherty amplifiers, which are high-efficiency power amplifiers, is the occurrence of complex memory dis... [more] | CQ2019-89 pp.7-12 |
| EMCJ, MW, EST, IEE-EMC [detail] | 2019-10-24 10:55 |
Miyagi | Tohoku Gakuin University(Conf. Room 2, Eng. Bldg. 1) | Efficiency Enhancement of GaN Doherty Power Amplifier at Large Power Back-Off with Virtual Short Stub Technique Satoru Honda, Shuichi Sakata, Yuji Komatsuzaki, Shintaro Shinjo (Mitsubishi Electric) EMCJ2019-40 MW2019-69 EST2019-48 |
We propose a new efficiency enhancement technique of Doherty power amplifiers (DPAs) using virtual short stub. In this t... [more] | EMCJ2019-40 MW2019-69 EST2019-48 pp.21-25 |
| EMCJ, IEE-EMC, MW, EST [detail] | 2016-10-20 11:20 |
Miyagi | Tohoku Univ. | An RF Frontend Amplifier Module for High SHF Wide-band Massive MIMO in 5G Keigo Nakatani, Shintaro Shinjo, Yuji Komatsuzaki, Jun Kamioka, Ryota Komaru, Hideyuki Nakamizo, Miyawaki Katsumi, Koji Yamanaka (Mitsubishi Electric) EMCJ2016-64 MW2016-96 EST2016-60 |
A highly integrated RF frontend module including a three-stage power amplifier (PA), a two-stage low noise amplifier (LN... [more] | EMCJ2016-64 MW2016-96 EST2016-60 pp.25-30 |
| MW | 2013-12-20 14:20 |
Saitama | Saitama Univ. | Compact Broadband Shunt-Connected Load Type GaN HEMT Doherty Amplifier without Quarter-Wave Impedance Inverting Network Yosuke Iguchi, Yoichiro Takayama, Ryo Ishikawa, Kazuhiko Honjo (UEC) MW2013-173 |
The conventional microwave Doherty power amplifier (DA) consist of a carrier amplifier (CA), a peaking amplifier (PA) an... [more] | MW2013-173 pp.121-126 |
| MW | 2012-11-21 14:00 |
Okinawa | Proposals of compact broadband microwave Doherty amplifiers with generalized output-combining condition Yoichiro Takayama, Kazuhiko Honjo (Univ. of Electro-Comm.) MW2012-115 |
A Doherty amplifier usually consists of a carrier amplifier, peaking amplifier and an impedance inverting network. Micro... [more] | MW2012-115 pp.7-12 |
|
| MW | 2012-10-18 09:20 |
Tochigi | Utsunomiya Univ. | A Broadband Doherty Power Amplifier without a Quarter-Wave Impedance Inverting Network Shintaro Watanabe, Yoichiro Takayama, Ryo Ishikawa, Kazuhiko Honjo (UEC) MW2012-82 |
The microwave Doherty amplifier consists of a carrier amplifier(CA), a peaking amplifier(PA) and a quarter-wave impedanc... [more] | MW2012-82 pp.7-12 |
| MW | 2010-09-09 13:55 |
Tokyo | Tokyo Inst. of Tech. | Proposal of distortion reduction method for the GaN HEMT Doherty Power Amplifier with a Series Connected Load Satoshi Kawai, Yoichiro Takayama, Ryo Ishikawa, Kazuhiko Honjo (UEC) MW2010-67 |
Recently, much attention has been given to Doherty amplifiers as microwave power amplifiers that have the possibility of... [more] | MW2010-67 pp.7-12 |
| MW | 2009-09-25 14:50 |
Tokyo | Univ. of Electro-Communications | Design and Fabrication for a GaN HEMT Microwave Doherty Power Amplifier with a Series Connected Load Satoshi Kawai, Yoichiro Takayama, Ryo Ishikawa, Kazuhiko Honjo (UEC) MW2009-85 |
Doherty amplifiers are expected as a high-efficiency microwave power amplifier at a wide dynamic range. Doherty introduc... [more] | MW2009-85 pp.67-72 |
| 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 |
| SCE, MW | 2008-04-22 14:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A Doherty Power Amplifier with a Series Connected Load Yoichiro Takayama, Kazuhiko Honjo (Univ. Electro-Comm.) SCE2008-9 MW2008-9 |
Doherty amplifiers are expected as a high-efficiency microwave power amplifier at wide output power back-off region. Doh... [more] | SCE2008-9 MW2008-9 pp.47-52 |
| MW, ED | 2007-01-19 10:10 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A Distortion-Cancelled Doherty 28V Operated 330W GaAs Heterojunction FET Power Amplifier for Cellular Base Stations Isao Takenaka, Koji Ishikura, Hidemasa Takahashi, Koichi Hasegawa, Takashi Ueda, Toshimichi Kurihara, Kazunori Asano, Naotaka Iwata (NEC Electronics) |
A low distortion Doherty high-power amplifier has been developed for cellular base stations. The amplifier delivered 330... [more] | ED2006-227 MW2006-180 pp.149-154 |
| RCS, AP, WBS, MW, MoNA | 2005-03-04 16:40 |
Kanagawa | Yokosuka Research Park | Performance of a Doherty Amplifier with an Adaptive Predistorter for Peak Power reduced CDM signals Motonori Iwata, Yoshihiko Akaiwa (Kyushu Univ.), Tetsuji Harada, Yoichiro Takayama (Univ. of Hyogo) |
The Doherty amplifier is a technique to realize a high power efficiency over a wide input level. However, it is known th... [more] | WBS2004-141 AP2004-322 RCS2004-409 MoMuC2004-192 MW2004-319 pp.115-120 |
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