Presentation 2019-11-14
Gate Switching Mode Low Power Transistor Rectifier using Enhancement-Mode GaAs HEMT
Tsuyoshi Yoshida, Ryo Ishikawa, Kazuhiko Honjo,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In an RF energy-harvesting utilizing environmental electromagnetic waves, a high-efficiency rectifier is required to convert the ultra-low power environmental electromagnetic waves into DC power. In this paper, a circuit configuration of a self-switching-type transistor rectifier has been proposed by using the anti-resonance between the feedback capacitance in the transistor and the external inductor, in order to increase both of the gate switching voltage and drain voltage swing. The operation was successfully analyzed based on a small-signal equivalent circuit approximation. Then, for a realization of the ultra-low power transistor rectifier, a low-threshold enhancement-mode GaAs HEMT with strong nonlinearity was used. A fabricated enhancement-mode GaAs HEMT rectifier exhibited an RF-to-DC conversion efficiency of 23.2% and DC output voltage of 21 mV for -30 dBm input power at 2.4 GHz band
Keyword(in Japanese) (See Japanese page)
Keyword(in English) rectifier / energy harvesting
Paper # MW2019-103
Date of Issue 2019-11-07 (MW)

Conference Information
Committee MW
Conference Date 2019/11/14(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Minami Daido Villa. Tamokuteki Koryu Center
Topics (in Japanese) (See Japanese page)
Topics (in English) Microwave Technologies
Chair Yoshinori Kogami(Utsunomiya Univ.)
Vice Chair Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Shintaro Shinjo(Mitsubishi Electric)
Secretary Tadashi Kawai(Utsunomiya Univ.) / Kensuke Okubo(Fujitsu Labs.) / Shintaro Shinjo
Assistant Satoshi Yoshida(Kagoshima Univ.) / Kyoya Takano(Tokyo Univ. of Science)

Paper Information
Registration To Technical Committee on Microwaves
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Gate Switching Mode Low Power Transistor Rectifier using Enhancement-Mode GaAs HEMT
Sub Title (in English)
Keyword(1) rectifier
Keyword(2) energy harvesting
1st Author's Name Tsuyoshi Yoshida
1st Author's Affiliation The University of Electro-Communications(UEC)
2nd Author's Name Ryo Ishikawa
2nd Author's Affiliation The University of Electro-Communications(UEC)
3rd Author's Name Kazuhiko Honjo
3rd Author's Affiliation The University of Electro-Communications(UEC)
Date 2019-11-14
Paper # MW2019-103
Volume (vol) vol.119
Number (no) MW-292
Page pp.pp.19-24(MW),
#Pages 6
Date of Issue 2019-11-07 (MW)