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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 16 of 16  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
MW, ED 2023-01-27
11:00
Tokyo Kikai-Shinko-Kaikan Bldg.
(Primary: On-site, Secondary: Online)
Measurement Evaluation of Bias Dependence of Single-Input Broadband GaN Amplifier
Yuki Nakagawa, Takana Kaho (Shonan Inst. Tech.), Shuichi Sakata, Yuji Komatsuzaki, Koji Yamanaka (MELCO)
 [more]
MW, ED 2023-01-27
15:25
Tokyo Kikai-Shinko-Kaikan Bldg.
(Primary: On-site, Secondary: Online)
[Invited Talk] Requierements for sharing type 4G/5G base station transciever amplifiers
Koji Yamanaka, Yuji Komatsuzaki, Shuichi Sakata, Kento Saiki (Mitsubishi Electric), Takana Kaho (SIT)
 [more]
AP, MW
(Joint)
2022-09-15
11:35
Ehime The Museum of Art, EHIME
(Primary: On-site, Secondary: Online)
Examination of Wideband Measurement of Dual-input GaN Amplifier Using Vector Transceiver
Takato Suzuki, Yahiro Nanba, Takana Kaho (Shonan Inst. Tech.), Shuichi Sakata, Yuji Komatsuzaki, Koji Yamanaka (MELCO) MW2022-75
We are researching a wideband dual-input one-output GaN amplifier for base stations that covers 4G / 5G frequencies. It ... [more] MW2022-75
pp.36-41
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
 Results 1 - 16 of 16  /   
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