Presentation 2019-09-20
C-band 10W GaN power amplifier for thin active integrated antenna arrays used for single-frequency wireless communication and power transmission
Daisuke Kobuchi, Kentaro Matsuura, Yoshiaki Narusue, Shigeo Kawasaki,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In an environment where many sensors are used, cables for communication and power supply increase the cost of maintenance and the cables themselves. Therefore, the authors are developing a wireless sensor network that aims to remove cables of communication and power supply by achieving both wireless communication and microwave power transmission. In this system, a thin active integrated array antenna (AIAA) is used to reduce the size and weight of the transmitter. In the previously developed AIAA, the output of the power amplifier attached to each antenna was as small as 5 W, so it was not possible to supply a sufficient amount of power to the sensor nodes far from the transmitter. In this research, in order to increase the power output of the transmitter, a power amplifier using a GaN HEMT chip was implemented. As a result of measuring the manufactured high frequency amplifier, we confirmed that an output of 10W and a drain efficiency of 56.49 % .
Keyword(in Japanese) (See Japanese page)
Keyword(in English) microwave power transmission / RF power amplifier / active integrated array antenna
Paper # MW2019-62
Date of Issue 2019-09-12 (MW)

Conference Information
Committee MW / AP
Conference Date 2019/9/19(2days)
Place (in Japanese) (See Japanese page)
Place (in English) JAXA (Sagamihara)
Topics (in Japanese) (See Japanese page)
Topics (in English) Microwave, Millimeter wave, Antennas and Propagation
Chair Yoshinori Kogami(Utsunomiya Univ.) / Qiang Chen(Tohoku Univ.)
Vice Chair Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Shintaro Shinjo(Mitsubishi Electric) / Satoru Kurokawa(AIST)
Secretary Tadashi Kawai(Utsunomiya Univ.) / Kensuke Okubo(Fujitsu Labs.) / Shintaro Shinjo(Mitsubishi Electric) / Satoru Kurokawa(Tokyo Univ. of Agric. & Tech.)
Assistant Satoshi Yoshida(Kagoshima Univ.) / Kyoya Takano(Tokyo Univ. of Science) / Michitaka Ameya(AIST)

Paper Information
Registration To Technical Committee on Microwaves / Technical Committee on Antennas and Propagation
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) C-band 10W GaN power amplifier for thin active integrated antenna arrays used for single-frequency wireless communication and power transmission
Sub Title (in English)
Keyword(1) microwave power transmission
Keyword(2) RF power amplifier
Keyword(3) active integrated array antenna
1st Author's Name Daisuke Kobuchi
1st Author's Affiliation The University of Tokyo(The Univ. of Tokyo)
2nd Author's Name Kentaro Matsuura
2nd Author's Affiliation The University of Tokyo(The Univ. of Tokyo)
3rd Author's Name Yoshiaki Narusue
3rd Author's Affiliation The University of Tokyo(The Univ. of Tokyo)
4th Author's Name Shigeo Kawasaki
4th Author's Affiliation Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency(JAXA)
Date 2019-09-20
Paper # MW2019-62
Volume (vol) vol.119
Number (no) MW-204
Page pp.pp.37-42(MW),
#Pages 6
Date of Issue 2019-09-12 (MW)