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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MW | 2023-03-02 10:00 |
Tottori | Tottori Univ. (Primary: On-site, Secondary: Online) |
A Ka-band Variable-Gain Phase Shifter Using Phase Compensation Technique with Varactors Akihito Hirai (Melco), Yuki Tsukui (MEE), Koji Tsutsumi, Kazutomi Mori (Melco)  MW2022-158 |
[more] | MW2022-158 pp.7-12 |
| MW | 2021-03-05 14:55 |
Online | Online | Technique of Optimizing the Phase Shift Accuracy in Vector-Sum Phase Shifter Followed by Frequency Doubler Wataru Yamamoto, Koji Tsutsumi, Masaomi Tsuru (Mitsubushi Electric Corp.) MW2020-98 |
In recent years, with the development of APAA (Active Phased Array Antenna) in the millimeter wave band, the need for ph... [more] | MW2020-98 pp.39-42 |
| ED, MW | 2020-01-31 09:05 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Phase Synchronization Technique Between Fractional-N PLLs by Correcting Phase Error due to Cycle Slip using Reference Delta-Sigma Modulator Sho Ikeda, Akihito Hirai, Koji Tsutsumi, Masaomi Tsuru (MELCO) ED2019-93 MW2019-127 |
[more] | ED2019-93 MW2019-127 pp.1-5 |
| AP | 2019-02-22 13:00 |
Osaka | Sumitomo Electric Industries (Osaka Works) | [Invited Lecture]
Development of High SHF Wide-band Massive MIMO Antenna RF Frontend Module in 5G Hikaru Watanabe, Satoshi Yamaguchi, Hideki Morishige, Yasuo Morimoto, Nakamizo Hideyuki, Koji Tsutsumi, shintaro Shinjo, Akihiro Okazaki, Tasuku Kuriyama, Toru Fukasawa, Naofumi Yoneda (Mitsubishi Electric) AP2018-180 |
In the 5th generation mobile communication system, high system capacity, low latency and massive connection will be prov... [more] | AP2018-180 pp.59-64 |
| MW | 2018-11-15 13:05 |
Nagasaki | Fukue Cultural Hall | Wide frequency range digital frequency discriminator using time-to-digital converter and adaptive control of input counter for Instantaneous Frequency Measurement Akihito Hirai, Koji Tsutsumi, Masaomi Tsuru, Mitsuhiro Shimozawa (Mitsubishi Electric Corp.) MW2018-96 |
[more] | MW2018-96 pp.25-30 |
| MW | 2018-05-25 11:35 |
Kyoto | Doshisha Univ. | A 28GHz 4-Channel Transmit/Receive RF Core-Chip for High SHF Wide-band Massive MIMO in 5G Wataru Yamamoto, Koji Tsutsumi, Takaya Maruyama, Takanobu Fujiwara, Tatsuya Hagiwara, Ai Osawa, Mitsuhiro Shimozawa (Mitsubishi Electric Co.) MW2018-17 |
[more] | MW2018-17 pp.39-43 |
| MW | 2017-11-09 12:55 |
Okinawa | Miyakojima Marin Terminal Bldg. | A 28GHz High Accuracy 6-bit Vector-Sum Phase Shifter for High SHF Wide-band Massive MIMO in 5G Wataru Yamamoto, Koji Tsutsumi, Takaya Maruyama, Takanobu Fujiwara, Mitsuhiro Shimozawa (Mitsubishi Electric Co.) MW2017-117 |
In 5th generation mobile communication system (5G), the active phased array antenna (APAA) have attracted attention to r... [more] | MW2017-117 pp.31-34 |
| SANE | 2017-05-22 11:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Digital Frequency Discriminator using Time-to-Digital Converter for Instantaneous Frequency Measurement Akihito Hirai, Koji Tsutsumi, Eiji Taniguchi, Mitsuhiro Shimozawa (Mitsubishi Electric Crop.) SANE2017-5 |
[more] | SANE2017-5 pp.23-28 |
| MW | 2017-05-19 13:50 |
Osaka | Osaka Univ. (Seminar Room1, Osaka Univ. Kaikan) | Ku-band Vector-Sum Phase Shifter Using LC-Type PPF With Adjustable Operating Frequency Takanobu Fujiwara, Koji Tsutsumi, Mitsuhiro Shimozawa (Mitsubishi Electric Corp.) MW2017-20 |
Recently many vector-sum phase shifters designed with cost-effective silicon process have been reported, featuring their... [more] | MW2017-20 pp.71-76 |
| MW | 2016-11-17 13:50 |
Saga | Saga Univ. | Image Rejection Mixer with Tunable Poly Phase Filter using external reference resistor Akihito Hirai, Koji Tsutsumi, Mitsuhiro Shimozawa (Mitsubishi Electric) MW2016-121 |
An Image rejection mixer (IRM) with Poly Phase Filter (PPF) has been commonly used in RF transceiver integral circuits (... [more] | MW2016-121 pp.27-32 |
| EMCJ, IEE-EMC, MW, EST [detail] | 2016-10-20 10:55 |
Miyagi | Tohoku Univ. | 4-Channel Transmit/Receive RF Core-Chip for High SHF Wide-band Massive MIMO in 5G Wataru Yamamoto, Koji Tsutsumi, Takaya Maruyama, Takanobu Fujiwara, Ichiro Somada, Tatsuya Hagiwara, Eiji Taniguchi, Mitsuhiro Shimozawa (Mitsubishi Electric Corp.) EMCJ2016-63 MW2016-95 EST2016-59 |
In 5th generation mobile communication system (5G), the active phased array antenna (APAA) have attracted attention to r... [more] | EMCJ2016-63 MW2016-95 EST2016-59 pp.21-24 |
| RCS | 2016-10-21 13:30 |
Kanagawa | YRP (Yokosuka) | [Invited Lecture]
R&D Activities for High SHF Wide-band Massive MIMO in 5G Akihiro Okazaki, Satoshi Yamaguchi, Koji Tsutsumi, Shintaro Shinjo, Hiroshi Nishimoto, Noriyuki Fukui, Shigeru Uchida, Atsushi Okamura (Mitsubishi Electric Corp.) RCS2016-185 |
Recently, mobile communication systems for the fifth generation (5G) in higher frequency bands have been extensively stu... [more] | RCS2016-185 pp.179-184 |
| MW | 2016-05-20 11:10 |
Kyoto | Kyoto Univ. | A Fast Chirp Generation PLL-IC using Polarity Switching Loop Filter Koji Tsutsumi, Eiji Taniguchi (Mitsubishi Electric) MW2016-19 |
A PLL (Phase Locked Loop) is used to generate frequency chirp signal for FMCW radars. The chirp generator using PLL has ... [more] | MW2016-19 pp.47-50 |
| MW | 2015-11-19 11:00 |
Okinawa | Univ. of the Ryukyus | High resolution and high precision Digital Frequency Discriminator using Time-to-Digital Converter for Instantaneous Frequency Measurement Akihito Hirai, Koji Tsutsumi, Eiji Taniguchi (Mitsubishi Electric Corp.) MW2015-122 |
[more] | MW2015-122 pp.11-16 |
| ICD, ITE-IST | 2014-07-03 10:00 |
Shimane | Izumo-shi (Shimane) | Digital Frequency Discriminator using Time-to-Digital Converter for Instantaneous Frequency Measurement Akihito Hirai, Koji Tsutsumi, Eiji Taniguchi (Mitsubishi Electric) ICD2014-19 |
The Digital Frequency Discriminator (DFD) with delay lines has been commonly used at instantaneous frequency measurement... [more] | ICD2014-19 pp.1-6 |
| MW | 2014-03-04 16:40 |
Ehime | Ehime University | [Special Talk]
Briefing Report on European Microwave Week 2013 Koji Tsutsumi (Mitsubishi Electric), Ryo Ishikawa (UEC), Hidenori Yukawa (Mitsubishi Electric), Tamio Kawaguchi (Toshiba), Akihiko Hirata (NTT), Hirokazu Kamoda (ATR) MW2013-209 |
[more] | MW2013-209 pp.71-78 |
| MW | 2014-03-05 13:30 |
Ehime | Ehime University | A Self-injection locked VCO with adoptive control of injection phase Kengo Kawasaki, Koji Tsutsumi, Masaomi Tsuru, Eiji Taniguchi (Mitsubishi Electric) MW2013-217 |
A self-injection locking is an effective method to reduce the phase noise of the oscillator; however there are some prob... [more] | MW2013-217 pp.117-122 |
| ICD, ITE-IST | 2013-07-05 11:00 |
Hokkaido | San Refre Hakodate | Development of 64 Linear Array ROIC for 3D Imaging LADAR Akihito Hirai, Koji Tsutsumi, Nobuki Kotake, Hidenobu Tsuji, Masaharu Imaki, Shumpei Kameyama, Eiji Taniguchi, Yoshihito Hirano (Mitsubishi Electric) ICD2013-35 |
[more] | ICD2013-35 pp.69-74 |
| MW | 2013-03-06 11:40 |
Hiroshima | Hiroshima Univ. | A Sub-harmonic Injection-locked Oscillator with Auto Aligned Multiple Pulse Injection Koji Tsutsumi, Masaomi Tsuru, Eiji Taniguchi (Mitsubishi Electric) MW2012-162 |
[more] | MW2012-162 pp.21-25 |
| MW | 2012-11-22 14:00 |
Okinawa | Fast and High Precision Phase Detector using an integrator with constant integration time Akihito Hirai, Koji Tsutsumi, Yoshinori Takahashi, Eiji Taniguchi (Mitsubishi Electric) MW2012-125 |
[more] | MW2012-125 pp.69-74 |
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