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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP (2nd) |
2023-12-07 15:20 |
Wakayama | Kiboukan (Nanki Shirahama) | Performance Evaluation of Adaptive Control Matching Circuits in Small-sized Heart Rate Modules with VHF Band Small Loop Antennas Saki Wada, Hidetoshi Makimura, Kengo Nishimoto, Yoshio Inasawa (MELCO) |
One method for acquiring heart rate variability in a non-contact manner involves using a radio wave sensor. This paper r... [more] | |
| AP, RCS (Joint) |
2023-11-15 11:30 |
Kumamoto | Kumamoto Prefectural Workers' Welfare Hall (Primary: On-site, Secondary: Online) |
Evaluation of Adaptive Control Matching Circuits in Small-Sized Heartbeat Modules with VHF Small Loop Antennas. Saki Wada, Kengo Nishimoto, Yoshio Inasawa (MELCO)  AP2023-132 |
There is a radio wave sensor as one of the methods to acquire RRIs without contact. A module has been developed that use... [more] | AP2023-132 pp.17-21 |
| MW, WPT | 2022-04-15 16:05 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Invited Talk]
Basic Study on Dynamic Output Matching Circuit for Microwave Power Amplifier Toshio Ishizaki (Ryukoku Univ.) WPT2022-12 MW2022-12 |
When using a power amplifier for microwave heating, the output power and efficiency decrease due to load impedance fluct... [more] | WPT2022-12 MW2022-12 pp.46-51 |
| WBS, MICT | 2021-07-30 14:45 |
Online | Online | RRI Measurement Results of Several Persons by a VHF-band Small Loop Antenna with an Adaptive Matching Circuit Saki Wada, Kengo Nishimoto, Yasuhiro Nishioka, Yoshio Inasawa (Mitsubishi Electric) WBS2021-30 MICT2021-23 |
There is a radio wave sensor as one of the methods to acquire RRIs without contact. We use a small VHF band antenna that... [more] | WBS2021-30 MICT2021-23 pp.45-48 |
| AP | 2019-06-20 14:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Study on a VHF-band Small Loop Antenna with Adaptive Control of the Matching Circuit for Heart Rate Sensor Saki Wada, Kengo Nishimoto, Yasuhiro Nishioka, Naofumi Yoneda (Mitsubishi Electric Corp.) AP2019-18 |
Vital signs of the body are related to mental stress conditions. The variation of the R-R interval (peak-to-peak interva... [more] | AP2019-18 pp.19-22 |
| AP, MW (Joint) |
2014-09-19 14:25 |
Tokyo | Tokyo Institute of Technology, Ookayama Campus | Improvement of Power Added Efficiency of Power Amplifier with Adaptive Matching Circuit Hidetoshi Makimura, Takashi Yanagi, Toru Fukasawa, Shintaro Shinjo, Hiroaki Miyashita (Mitsubishi Electric) AP2014-103 |
This paper presents a novel adaptive matching circuit which improves power added efficiency of power amplifiers embedded... [more] | AP2014-103 pp.55-60 |
| AP, ITE-BCT | 2013-02-07 09:25 |
Tokyo | AIST Tokyo Waterfront | Simplified Adaptive Antenna Tuning System using the Measurement of Standing Wave Amplitude Hidetoshi Makimura, Kengo Nishimoto, Toru Fukasawa, Hiroaki Miyashita, Yoshihiko Konishi (Mitsubishi Electric) AP2012-158 |
This paper presents a novel reflection coefficient measurement method and an adaptive antenna tuning system with simplif... [more] | AP2012-158 pp.1-6 |
| AP | 2010-01-21 16:10 |
Yamaguchi | Yamaguchi University | Total radiated power (TRP) measurement system for small radio terminals using a spheroidal coupler combined with a variable matching circuit Takashi Kawamura, Aya Yamamoto, Toru Sakuma, Yukiyasu Kimura, Yasuhiko Nago, Tasuku Teshirogi (Anritsu) AP2009-168 |
Recently “antenna integrated radios” have been increasing rapidly which do not have terminals for monitoring Tx output ... [more] | AP2009-168 pp.75-80 |
| ACT (2nd) |
2009-09-04 14:55 |
Kyoto | Keihanna Plaza | Total radiated power (TRP) measurement of small radio terminals using a spheroidal coupler (3)
-- Improvement of the coupling factor by a variable matching circuit -- Takashi Kawamura, Aya Yamamoto, Toru Sakuma, Yukiyasu Kimura, Yasuhiko Nago, Tasuku Teshirogi (Anritsu) |
Recently “antenna integrated radios” have been increasing rapidly which do not have terminals for monitoring Tx output ... [more] | |
| MW | 2008-12-12 11:15 |
Toyama | Toyama-Univ. Gofuku-camp. | Chip Antenna Integrated with Tuning Circuit for 1seg D-TV Usage Kenichi Ishizuka, Hiroshi Nishida, Kazunari Kawahata (Murata Manufacturing Co.,Ltd.) MW2008-151 |
This paper proposes the miniaturized antenna for the cellular phone with 1-Seg system. Firstly we examined the matching ... [more] | MW2008-151 pp.31-36 |
| MW | 2008-11-21 09:55 |
Nagasaki | Nagasaki-Univ. | Frequency and Gain Tunable, Multiple Bandpass or Bandstop Differential Amplifiers Toshio Shinohara, Masaki Shirata, Kazuyoshi Sakamoto, Yasushi Itoh (SHonan IT) MW2008-134 |
Design, fabrication and performance of the frequency and gain tunable, multiple bandpass or bandstop differential amplif... [more] | MW2008-134 pp.91-96 |
| EMCJ | 2008-04-25 13:10 |
Tokyo | NTT Information Sharing Lab. | Manufacturing and Measurement of Variably Matchable EM-wave Absorber Ryo Miyazaki, Atsuhiro Nishikata, Takahiro Aoyagi (Tokyo Tech), Youji Kotsuka (MMRII) EMCJ2008-2 |
Artificial material or metamaterial based on circuit network has electrically-controllable feature of its characteristi... [more] |
EMCJ2008-2 pp.7-12 |
| AP | 2006-08-24 11:10 |
Niigata | Toki Messe(Niigata) | Rake Shape Antenna for Angle Diversity by Reactance Control
-- Proposal and Study of Low Profile Vertically Polarized Veriable Antenna -- Kyoichi Iigusa, Katsuyoshi Sato, Hiroshi Harada (NICT) AP2006-61 |
We propose a vertically-polarized low profile antenna which can be used for angle diversity by reactance control. For ea... [more] | AP2006-61 pp.23-28 |
| ED, MW | 2006-01-20 11:40 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A Frequency-Tunable Amplifier with a T-Shaped Tunable Adimittance-Inverter Hiromitsu Uchida, Kentaro Ogura, Naofumi Yoneda, Yoshihiko Konishi, Shigeru Makino (Mitsubishi Electric Corp.) |
An admittance inverter is a basic component of filters and active circuits. By making it frequency-tunable, various kind... [more] | ED2005-215 MW2005-169 pp.37-42 |
| AP | 2005-01-21 09:00 |
Saga | Saga University | RF- and DC-line Share Ring Frequency Controllable Antenna Kyouichi Iigusa, Makoto Yamamoto, Takuma Sawaya, Kouji Kato, Makoto Taromaru, Takashi Ohira (ATR-WEL) |
RF- and DC- line Share Ring Frequency Controllable Antenna (ShRiquen antenna) is proposed, where anti-series variable di... [more] | AP2004-210 pp.1-6 |
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