Presentation 2022-09-15
Power characteristics of 5.8GHz band 5W rectenna with a GaAs GAD
Naoki Furutani, Kaito Uchiyama, Fumiya Komatsu, Kouichi Kikkawa, Naoki Sakai, Kenji Itoh,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this report, power characteristics of the 5.8 GHz band 5 W rectenna are discussed. The rectenna is consisting of the gated anode diode (GAD) configured with the GaAs E-pHEMT for improving power characteristics. At first, a measured DC characteristic of the GAD and its saturation is demonstrated. In the saturation region, a differential resistance of the GAD is increased and makes degradation of rectification efficiency. In the discussions, GAD currents’ waveforms with different gate widths are demonstrated, and their influences on power characteristics are discussed. As a result, gate width of 1.2 mm is designed for the rectenna. In experimental investigation, the rectenna consisting of a GaAs rectenna IC and a high-impedance antenna is fabricated on the aluminum nitride substrate that has low thermal resistivity as metal plates. Measured rectification efficiency of 85.2 % at input power of 5 W is obtained.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) RF rectifier / Gated anode diode / Dipole antenna / Rectenna
Paper # MW2022-74
Date of Issue 2022-09-07 (MW)

Conference Information
Committee AP / MW
Conference Date 2022/9/14(3days)
Place (in Japanese) (See Japanese page)
Place (in English) The Museum of Art, EHIME
Topics (in Japanese) (See Japanese page)
Topics (in English) Microwave, Millimeter wave
Chair Hiroshi Yamada(Niigata Univ.) / Noriharu Suematsu(Tohoku Univ.)
Vice Chair Mitoshi Fujimoto(Fukui Univ) / Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Hideyuki Nakamizo(Mitsubishi Electric)
Secretary Mitoshi Fujimoto(National Defense Academy) / Tadashi Kawai(Mitsubishi Electric) / Kensuke Okubo(Univ. of Electro-Comm) / Hideyuki Nakamizo(Toshiba)
Assistant Tomoki Murakami(NTT) / Naoki Hasegawa(Softbank) / Kosuke Katayama(NIT Tokuyama College)

Paper Information
Registration To Technical Committee on Antennas and Propagation / Technical Committee on Microwaves
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Power characteristics of 5.8GHz band 5W rectenna with a GaAs GAD
Sub Title (in English)
Keyword(1) RF rectifier
Keyword(2) Gated anode diode
Keyword(3) Dipole antenna
Keyword(4) Rectenna
1st Author's Name Naoki Furutani
1st Author's Affiliation Kanazawa Institute of Technology(KIT)
2nd Author's Name Kaito Uchiyama
2nd Author's Affiliation Kanazawa Institute of Technology(KIT)
3rd Author's Name Fumiya Komatsu
3rd Author's Affiliation Kanazawa Institute of Technology(KIT)
4th Author's Name Kouichi Kikkawa
4th Author's Affiliation Kanazawa Institute of Technology(KIT)
5th Author's Name Naoki Sakai
5th Author's Affiliation Kanazawa Institute of Technology(KIT)
6th Author's Name Kenji Itoh
6th Author's Affiliation Kanazawa Institute of Technology(KIT)
Date 2022-09-15
Paper # MW2022-74
Volume (vol) vol.122
Number (no) MW-183
Page pp.pp.30-35(MW),
#Pages 6
Date of Issue 2022-09-07 (MW)