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All Technical Committee Conferences (All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MW, WPT | 2022-04-15 15:40 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Invited Talk]
A High Efficiency 3.6-4.0 GHz Envelope-Tracking Power Amplifier Using GaN Soft-Switching Buck-Converter Yuji Komatsuzaki (Mitsubishi Electric), Sandro Lanfranco, Tapio Kolmonen, Olli Piirainen, Jarno K. Tanskanen (Nokia Bell Labs), Shuichi Sakata (Mitsubishi Electric), Rui Ma (MERL), Shintaro Shinjo, Koji Yamanaka (Mitsubishi Electric), Peter Asbeck (UCSD)  WPT2022-11 MW2022-11 |
We report a high efficiency sub-6GHz wideband Envelope-Tracking Power Amplifier (ET-PA) including an envelope amplifier ... [more] | WPT2022-11 MW2022-11 pp.40-45 |
| MW | 2022-03-03 14:25 |
Online | Online | Examination of Measurement Evaluation System of 2-input GaN Amplifier Using Vector Transceiver Haruki Mori, Takato Suzuki, Takana Kaho (Shonan Inst. Tech.), Yuji Komatsuzaki, Kento Saiki, Koji Yamanaka (Mitsubishi Electric) MW2021-122 |
[more] | MW2021-122 pp.63-68 |
| ED, MW | 2022-01-27 16:05 |
Online | Online | [Invited Talk]
Wideband Load Modulated GaN Power Amplifiers for Wireless Base-Stations Shuichi Sakata, Yuji Komatsuzaki, Kento Saiki, Koji Yamanaka, Masaomi Tsuru (Mitsubishi Electric) ED2021-68 MW2021-110 |
Recently, 5G commercial services which have features of high speed, large capacity and multi-connectivity have rolled ou... [more] | ED2021-68 MW2021-110 pp.32-37 |
| MW | 2021-12-16 14:50 |
Kanagawa | Kawasaki City Industrial Promotion Hall (Primary: On-site, Secondary: Online) |
Evaluation of distortion compensation characteristics of wideband GaN amplifier with multi-carrier input Haruki Mori, Kouki Hattori, Takana Kaho (Shonan Inst. Tech.), Yuji Komatsuzaki, Kento Saiki, Koji Yamanaka (Mitsubishi Electric) MW2021-91 |
[more] | MW2021-91 pp.37-42 |
| RCS | 2021-04-22 10:30 |
Online | Online | Digital Predistorter Using Twin-Nonlinear Two-Box Model for Digitally Assisted Ultra-Wideband GaN Amplifier Ao Yamashita, Yuji Komatsuzaki, Hiroto Sakaki, Nobuhiko Ando, Hideyuki Nakamizo (Mitsubishi Electric) RCS2021-1 |
The authors have been proposing high efficiency digitally assisted ultra-wideband GaN amplifier for mobile base station ... [more] | RCS2021-1 pp.1-5 |
| SR | 2020-06-04 - 2020-06-05 |
Online | Online | A Control Method of Digitally Assited Ultra- Wideband GaN Amplifier with Modulated Input Signals for High PAE Hiroto Sakaki, Ao Yamashita, Yuji Komatsuzaki, Nobushiko Ando, Hideyuki Nakamizo (Mitsubishi Electric) SR2020-8 |
[more] | SR2020-8 pp.51-55 |
| MW | 2019-11-15 11:00 |
Okinawa | Minami Daido Villa. Tamokuteki Koryu Center | Report on 2019 IEEE MTT-S International Microwave Symposium Msaru Sato (Fujitsu Lab.), Takashi Shimizu (Utsunomiya Univ.), Yusuke Uemichi (Fujikura), Hiroyuki Aoyama (Mitsubishi Electoric), Tetsuya Ueda (KIT), Yuji Komatsuzaki (Mitsubishi Electoric), Hiroshi Hamada (NTT), Kyoya Takano (TUS), Hiroshi Okazaki (NTT DOCOMO) MW2019-114 |
This is a report on 2019 IEEE MTT-S International Symposium held at Boston, MA, USA, June 2-7, 2019. It contains an over... [more] | MW2019-114 pp.81-86 |
| 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 |
| MW | 2018-11-15 10:50 |
Nagasaki | Fukue Cultural Hall | A Ka-Band High Efficiency Doherty Power Amplifier MMIC using GaN-HEMT for 5G Application Keigo Nakatani, Yutaro Yamaguchi, Yuji Komatsuzaki, Shintaro Shinjo (Mitsubishi Electric) MW2018-94 |
[more] | MW2018-94 pp.13-18 |
| MW | 2018-11-16 13:15 |
Nagasaki | Fukue Cultural Hall | [Special Talk]
Report on 2018 IEEE MTT-S International Microwave Symposium Takashi Shimizu (Utsunomiya Univ.), Ryo Ishikawa (UEC), Tetsuya Ueda (Kyoto Inst. of Tech.), Masataka Ohira (Saitama Univ.), Hiroshi Okazaki (NTT DOCOMO), Yuji Komatsuzaki (Mitsubishi Electric Corp.), Tamura Masaya (TUT) MW2018-110 |
[more] | MW2018-110 pp.95-102 |
| MW | 2016-11-17 14:55 |
Saga | Saga Univ. | Industrial microwave heating device using GaN amplifier module Kazuhiro Iyomasa, Koji Yamanaka, Takeshi Shiode, Hiroyuki Mizutani, Masaomi Tsuru, Yoshifumi Kawamura, Takaaki Yoshioka, Yuji Komatsuzaki, Yutaro Yamaguchi, Keigo Nakatani, Ryuta Komaru, Kazutomi Mori, Hiroshi Fukumoto (Mitsubishi Electric Corp.) MW2016-123 |
(To be available after the conference date) [more] | MW2016-123 pp.39-42 |
| 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 |
| EMT, MW, OPE, MWP, EST, IEE-EMT [detail] | 2015-07-17 13:25 |
Hokkaido | Kushiro City Lifelong Learning Center | Dynamic AM/AM and AM/PM control of Doherty amplifier using tanh-shaped function Yuji Komatsuzaki, Hiroshi Otsuka, Hifumi Noto, Shintaro Shinjo, Koji Yamanaka, Yoshihiro Hamamatsu, Hiroshi Fukumoto (Mitsubishi Electric Corp.) EMT2015-47 MW2015-85 OPE2015-59 EST2015-51 MWP2015-50 |
Power amplifiers for communication systems require increasingly high efficiency at large back-off from saturated output ... [more] | EMT2015-47 MW2015-85 OPE2015-59 EST2015-51 MWP2015-50 pp.227-232 |
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