| IEICE Technical Committee Submission System Conference Schedule |
Online Proceedings [Sign in] Tech. Rep. Archives |
All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MW | 2024-03-01 09:00 |
Okayama | Okayama Prefectural University (Primary: On-site, Secondary: Online) |
An Anti-parallel Diode 100GHz GaN Frequency Tripler for Beyond 5G Using Terahertz Band Shimpei Yamashita, Yoshifumi Kawamura, Keigo Nakatani, Yoshitaka Kamo, Koji Yamanaka (MELCO)  MW2023-186 |
In this report, we present an anti-parallel diode frequency tripler GaN MMIC for the 100GHz band, which utilizes the ter... [more] | MW2023-186 pp.62-65 |
| MW | 2024-03-01 09:25 |
Okayama | Okayama Prefectural University (Primary: On-site, Secondary: Online) |
A 100GHz-band GaN Transmitter Module with Triple-Multiplier for Beyond 5G Using Terahertz Band Yoshifumi Kawamura, Shimpei Yamashita, Keigo Nakatani, Koji Yamanaka, Yoshitaka Kamo, Kenichi Horiguchi, Tetsuo Kunii, Hirotaka Amasuga (Mitsubishi Electric) MW2023-187 |
The goal of Beyond 5G (B5G) is to achieve ultra-high-speed, large-capacity communications 10 times faster than 5G. In or... [more] | MW2023-187 pp.66-69 |
| ED, MW | 2024-01-25 14:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
Study on Traps in GaN HEMTs using Low-frequency Y11 and Y22 Toshiyuki Oishi, Shiori Takada (Saga Univ.), Ken Kudara, Yutaro Yamaguchi, Shintaro Shinjo, Koji Yamanaka (Mitsubishi Electric Corp.) ED2023-67 MW2023-159 |
[more] | ED2023-67 MW2023-159 pp.7-10 |
| MW | 2023-11-17 12:30 |
Okinawa | Nago City Industrial Support Center (Okinawa) (Primary: On-site, Secondary: Online) |
A Distributed Model with a High Scaling Accuracy for Sub-THz band GaN-HEMTs Yutaro Yamaguchi, Ken Kudara, Shintaro Shinjo, Koji Yamanaka (Mitsubishi Electric Corp.), Yasuyuki Miyamoto (Titech) MW2023-142 |
[more] | MW2023-142 pp.87-91 |
| MW, EMCJ, EST, IEE-EMC [detail] | 2023-10-20 09:40 |
Yamagata | Yamagata University (Primary: On-site, Secondary: Online) |
Evaluation of DPD Compensation and Modulation Bandwidth Dependence of GaN Doherty Amplifier Using 5G NR TDD Signals Ayano Yano, Takana Kaho (Shonan Inst. Tech.), Shuichi Sakata, Yuji Komatsuzaki, Koji Yamanaka (Mitsubishi Electric) EMCJ2023-58 MW2023-112 EST2023-85 |
We are researching broadband GaN amplifiers for base stations covering 4G/5G frequencies. We built a measurement system ... [more] | EMCJ2023-58 MW2023-112 EST2023-85 pp.119-124 |
| MW, EMCJ, EST, IEE-EMC [detail] | 2023-10-20 10:00 |
Yamagata | Yamagata University (Primary: On-site, Secondary: Online) |
Study on Efficiency Improvement of Dual-Input GaN Amplifier as Outphasing Amplifier Shinro Yatsuda, Rikito Matsuo, Takana Kaho (Shonan Inst.Tech.), Shuichi Sakata, Yuji Komatsuzaki, Koji Yamanaka (Mitsubishi Electric) EMCJ2023-59 MW2023-113 EST2023-86 |
We are developing a base station amplifier that covers a wide frequency range of 4G/5G by switching the Doherty and outp... [more] | EMCJ2023-59 MW2023-113 EST2023-86 pp.125-130 |
| SANE | 2023-05-23 10:10 |
Kanagawa | Information Technology R & D Center, MITSUBISHI Electric Corp. (Primary: On-site, Secondary: Online) |
Broadband High Power, High Efficiency Microwave Amplifiers Enabled by GaN HEMT Eigo Kuwata, Jun Kamioka, Shintaro Shinjo, Koji Yamanaka (MELCO) SANE2023-3 |
Semiconductors are increasingly replacing electron tubes in microwave transmitters used for observation, communication a... [more] | SANE2023-3 pp.12-17 |
| 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) ED2022-89 MW2022-148 |
We are researching a broadband GaN amplifier for 4G/5G base stations covering a 4GHz band from 800MHz to 4.8GHz. We aim ... [more] | ED2022-89 MW2022-148 pp.19-24 |
| MW, ED | 2023-01-27 12:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
Effects of GaN traps in GaN HEMTs to Low Frequency Y22 Parameters
-- Device Simulation Study -- Shogo Morokuma (Saga Univ.), Tomohiro Otsuka (Mitsubishi Electric), Toshiyuki Oishi (Saga Univ.), Yutaro Yamaguchi, Shintaro Shinjo, Koji Yamanaka (Mitsubishi Electric) ED2022-91 MW2022-150 |
GaN HEMTs are used in high frequency and power electronics applications. Advanced systems demand improvement of characte... [more] | ED2022-91 MW2022-150 pp.29-32 |
| 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) ED2022-96 MW2022-155 |
In post-5G era (latter half of 2020s), mobile base-stations are assumed to be shared between mobile operators to reduce ... [more] | ED2022-96 MW2022-155 p.50 |
| CPM, ED, LQE | 2022-11-24 14:35 |
Aichi | Winc Aichi (Aichi Industry & Labor Center) (Primary: On-site, Secondary: Online) |
Evaluation of Fe Induced Trap in GaN HEMTs using Low-Frequency Y22 Measurement Taiki Nishida, Toshiyuki Oishi (Saga Univ.), Tomohiro Otsuka, Yutaro Yamaguchi, Shintaro Shinjo, Koji Yamanaka (Mitsubishi Elec. Corp.) ED2022-34 CPM2022-59 LQE2022-67 |
One issue in improving amplifier performance using GaN is evaluating the characteristics of traps. In this study, we eva... [more] | ED2022-34 CPM2022-59 LQE2022-67 pp.49-52 |
| 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 |
| ED, MW | 2018-01-26 09:55 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | UHF-C Band Broadband Power Amplifier with Series Connected SiGe HBT and GaN HEMT Eigo Kuwata, Kengo Kawasaki, Daisuke Tsunami, Kazuhiro Maeda, Koji Yamanaka (MELCO) ED2017-98 MW2017-167 |
This paper reports on a multi chips amplifier consists of Gallium Nitride High Electron Mobility Transistor (GaN HEMT) a... [more] | ED2017-98 MW2017-167 pp.25-29 |
| MW | 2017-11-09 14:20 |
Okinawa | Miyakojima Marin Terminal Bldg. | A 30-W class X-band GaN-on-Si MMIC Power Amplifier with a GaAs MMIC Output Matching Circuit Jun Kamioka, Yoshifumi Kawamura, Kazuhiko Nakahara, Hiroyuki Okazaki, Masatake Hangai, Koji Yamanaka (Mitsubishi Electric Corporation) MW2017-122 |
[more] | MW2017-122 pp.57-60 |
| MW, EMCJ, EST, IEE-EMC [detail] | 2017-10-20 11:05 |
Akita | Yupopo | 5.8GHz High Efficiency GaN Amplifier for Practical Use of Microwave Power Transfer Koji Yamanaka, Kazuhiro Iyomasa, Masatake Hangai, Hiromitsu Utsumi, Jun Nishihara, Yukihiro Homma (Mitsubishi Electric), Kenji Sakaki (J-SS) EMCJ2017-47 MW2017-99 EST2017-62 |
In this paper, a state-of-the-art high power and high efficiency GaN HEMT amplifier, which is to be used in 5.8GHz micro... [more] | EMCJ2017-47 MW2017-99 EST2017-62 pp.117-122 |
| MW, EMCJ, EST, IEE-EMC [detail] | 2017-10-20 16:40 |
Akita | Yupopo | Demonstration of Uniform Heating Distribution Control for Microwave Heating Small Reactor with Solid-State Oscillators Kazuhiro Iyomasa, Yoshifumi Kawamura, Ryota Komaru, Yutaro Yamaguchi, Keigo Nakatani, Takeshi Shiode, Koji Yamanaka, Kazutomi Mori, Hiroshi Fukumoto (Melco) EMCJ2017-58 MW2017-110 EST2017-73 |
(To be available after the conference date) [more] | EMCJ2017-58 MW2017-110 EST2017-73 pp.171-175 |
[Return to Top Page]