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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 52  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
WPT 2023-03-16
11:50
Kyoto Kyoto-Univ. (Uji campus)
(Primary: On-site, Secondary: Online)
Operating Analysis of Doherty-Outphasing Hybrid Power Amplifier on Saturation Region
Daisuke Yasunobu, Ren Furumoto, kenjirou Nishikawa (Kagoshima Univ.) WPT2022-33
In WiCoPT systems, which can transmit information and power simultaneously, modulated signals with high PAPR are used. T... [more] WPT2022-33
pp.14-18
MW 2022-12-15
15:25
Mie Jingu-Kaikan(Ise)
(Primary: On-site, Secondary: Online)
Two-Power-Level Impedance Match for Out-phasing Amplifier
Takashi Maehata, Takashi Sumiyoshi (SEI), Ren Furumoto, Kenjiro Nishikawa (Kagoshima University) MW2022-136
The outphasing amplifier (OPA) has been attracting attention as an amplifier that achieves high efficiency from saturate... [more] MW2022-136
pp.27-32
MW 2022-11-15
13:25
Nagasaki Fukue-Bunka-Kaikan
(Primary: On-site, Secondary: Online)
Doherty-Outphasing Hybrid power amplifier for WiCoPT WPT system
Ren Furumoto, Daisuke Yasunobu, Kenjiro Nishikawa (Kagoshima Univ.) MW2022-112
WiCoPT system, which can transfer data and power simultaneously, employs modulated signals. Therefore, a transmitter of ... [more] MW2022-112
pp.19-24
MW 2022-11-15
16:50
Nagasaki Fukue-Bunka-Kaikan
(Primary: On-site, Secondary: Online)
Experimental Evaluation of Power and Data Transfer Characteristics on Short-Range MIMO WiCoPT System
Yotaro Watanabe, Shintaro Miya, Taishi Nara, Satoshi Yoshida (Kagoshima Univ), Shigeo Kawasaki (Space & Mobile Wireless Technology Inc), Kenjiro Nishikawa (Kagoshima Univ) MW2022-119
 [more] MW2022-119
pp.56-60
MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] 2022-07-19
09:45
Hokkaido Asahikawa Civic Culture Hall
(Primary: On-site, Secondary: Online)
Design and Prototyping of a Single-Shunt Rectifier with 71% Fractional Bandwidth
Shunya Asakura, Satoshi Yoshida, Kenjiro Nishikawa (Kagoshima Univ.) EMT2022-18 MW2022-42 OPE2022-21 EST2022-19 MWPTHz2022-16
This paper reports the results of achieving a specific bandwidth of 71% using a single shunt configuration with a simple... [more] EMT2022-18 MW2022-42 OPE2022-21 EST2022-19 MWPTHz2022-16
pp.57-61
WPT 2022-06-10
11:45
Tokyo
(Primary: On-site, Secondary: Online)
Dual-frequency Simultaneous Wireless Information and Power Transfer System
Teruki Yabuta, Satoshi Yoshida, Kenjiro Nishikawa (Kagoshima Univ.) WPT2022-17
This paper proposes a novel dual-band simultaneous wireless information and power transfer configuration which employs a... [more] WPT2022-17
pp.20-23
MW, WPT 2022-04-15
10:05
Tokyo Kikai-Shinko-Kaikan Bldg.
(Primary: On-site, Secondary: Online)
Transmission Efficiency Improvement of Short-Range 4x4 MIMO-WiCoPT System
Shintaro Miya, Youtaro Watanabe, Taishi Nara, Satoshi Yoshida (Kagoshima Univ.), Shigeo Kawasaki (Space&Mobile Wireless Technology Inc.), Kenjiro Nishikawa (Kagoshima Univ.) WPT2022-1 MW2022-1
This research has investigated the short-range Multi Input Multi Output (MIMO) Wireless Communication and Power Transfer... [more] WPT2022-1 MW2022-1
pp.1-5
OPE, MW, IEE-EMT, MWP, EST, EMT, THz [detail] 2021-07-15
11:30
Online Online Design of 94GHz High Efficiency Rectifier MMIC
Ren Furumoto, Hayato Shimizu, Kenjiro Nishikawa (Kagoshima Univ.) EMT2021-10 MW2021-15 OPE2021-4 EST2021-11 MWP2021-12
This paper presents a 94 GHz band high-efficiency rectifier MMIC using a GaAs Schottky diode. The diode used here is a c... [more] EMT2021-10 MW2021-15 OPE2021-4 EST2021-11 MWP2021-12
pp.16-21
MW 2021-05-20
15:45
Online Online Improvement of Transfer Efficiency on MIMO WiCoPT System
Yotaro Watanabe, Shintaro Miya, Kenjiro Nishikawa (Kagoshima Univ) MW2021-11
This paper proposes a short-range MIMO WiCoPT system in which information transmission and wireless power transfer are p... [more] MW2021-11
pp.32-36
MW, WPT 2020-04-23
14:15
Online Online Investigation of Rectifier Operation with Harmonic Controlled Input Signals towards Pulse Modulation WiCoPT System
Runyuan Li, Satoshi Yoshida (Kagoshima Univ), Yasunori Suzuki, Hiroshi Okazaki (NTT DOCOMO), Kenjiro Nisikawa (Kagoshima Univ) WPT2020-5 MW2020-5
One of main issues on Wireless Communication and Power Transmission(WiCoPT) system is that modulated input signals degra... [more] WPT2020-5 MW2020-5
pp.25-30
ED, MW 2020-01-31
13:10
Tokyo Kikai-Shinko-Kaikan Bldg. [Special Talk] Briefing Report on European Microwave Week 2019
Masatake Hangai (Mitsubishi Electric Co.), Kenjiro Nishikawa (Kagoshima Univ.), Kenji Mukai (Murata Manufacturing Co.), Motomi Abe, Yusuke Kitsukawa, Ryota Komaru, Shuichi Sakata, Jun Kamioka, Shinya Yokomizo (Mitsubishi Electric Co.) ED2019-99 MW2019-133
The European Microwave Week 2019, comprising the European Microwave Conference (EuMC), European Integrated Circuits Conf... [more] ED2019-99 MW2019-133
pp.29-34
MW 2019-12-19
15:05
Gifu Gifu Unif. Satellite Campus [Special Talk] 3-D Radiation Pattern Measurement of 60-GHz-Band Phased Array Antenna Using 4x2 Patch Array Antenna
Ryutaro Onimaru, Satoshi Yoshida, Kenjiro Nishikawa (Kagoshima Univ.) MW2019-124
In this paper, we report a designed ,fabricated, and measured results of a 60-GHz-band 2×2 beam-
forming arrray antenna... [more]
MW2019-124
pp.31-36
MW 2019-11-14
17:30
Okinawa Minami Daido Villa. Tamokuteki Koryu Center 6-10GHz Cryogenic GaAs pHEMT LNA MMIC
Hayato Shimizu, Yudai Iwashita, Ryotaro Iwamoto (Kagoshima Univ.), Tamio Kawaguchi (Toshiba Corp.), Kenjiro Nishikawa (Kagoshima Univ.) MW2019-110
This paper demonstrates a cryogenic broadband GaAs pHEMT LNA MMIC. The LNA was designed by using the modified GaAs pHEMT... [more] MW2019-110
pp.59-63
MW, AP
(Joint)
2019-09-20
16:00
Kanagawa JAXA (Sagamihara) Experimental Verification of Copper Ball Interconnection and 3-D Antenna Pattern Measurement Techniques Using 60-GHz-Band Patch Arrray Antenna
Satoshi Yoshida, Ryutaro Onimaru, Kenjiro Nishikawa (Kagoshima Univ.) MW2019-63
In this paper, we report a designed ,fabricated, and measured results of a 60-GHz-band 2×2 beamform-
ing arrray antenna... [more]
MW2019-63
pp.43-47
MW, ICD 2019-03-14
15:40
Okinawa   Wide dynamic range rectifier circuit with varactor tuning technique
Ayako Suzuki, Koshi Hamano, Hayato Shimizu (Kagoshima Univ.), Hiroshi Okazaki, Kunihiro Kawai, Atsushi Fukuda, Yasunori Suzuki (NTT DOCOMO), Kenjiro Nishikawa (Kagoshima Univ.) MW2018-166 ICD2018-110
 [more] MW2018-166 ICD2018-110
pp.55-59
WPT, AP
(Joint)
2019-01-18
14:20
Aichi Toyota Automobile Museum Fabrication and evaluation of a Ka-band single shunt rectifier
Satoshi Yoshida, Kenjiro Nishikawa (Kagoshima Univ.), Shigeo Kawasaki (JAXA) WPT2018-61
In this paper, we report a designed ,fabricated, and measured results of a Ka-band rectifier. To increase the total syst... [more] WPT2018-61
pp.37-41
EE, WPT, IEE-SPC 2018-07-03
15:30
Hokkaido Hokkaido University WPT Area Expansion Technique with Magnetic MISO beamformer
Ayako Suzuki, Koshi Hamano, Kenjiro Nishikawa (Kagoshima Univ.) WPT2018-28
(To be available after the conference date) [more] WPT2018-28
pp.111-115
MW 2018-05-25
11:10
Kyoto Doshisha Univ. Consideration of a C-Band Frequency-Variable Rectifier Using HySIC Technology and Varactor Diode
Keiichi Ishidera, Satoshi Yoshida, Kenjiro Nishikawa (Kagoshima Univ.), Shigeo Kawasaki (JAXA) MW2018-16
In this paper, we propose a frequency-variable rectifier using HySIC (Hybrid Semiconductor Integrated Circuit) technolog... [more] MW2018-16
pp.35-38
MW 2017-11-09
10:15
Okinawa Miyakojima Marin Terminal Bldg. High-order Mode Transmission Suppression Technique using Via hole and Defected Ground Structure in CBCPW line
Kakiuchi Hideshi, Nishikawa Kenjiro (Kagoshima Univ.) MW2017-112
This paper investigated the suppression of high-order mode transmission on CBCPW line by using via-holes and defected g... [more] MW2017-112
pp.5-8
MW 2017-11-10
10:55
Okinawa Miyakojima Marin Terminal Bldg. Investigation of RF-DC Conversion Efficiency on Concurrent Dual-Band Rectifier under various input power condition
Koshi Hamano, Kenjiro Nishikawa (Kagoshima Univ.), Shigeo Kawasaki (JAXA) MW2017-132
The RF-DC conversion efficiency decreases at the high input power when the two-tone signals input the dual-band rectifie... [more] MW2017-132
pp.111-116
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