Presentation 2020-05-22
Efficiency measurements and comparisons for the class E rectifier circuit in AM wave
Takuya Komatsu, Keitaro Omua, Norimasa Nakashima,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Energy harvesting is expected in infrastructure management and IoT (Internet of Things) as a battery-less power supply. The authors are coping with a proposition of a high-performance AM radio rectenna. This paper introduces a class E rectifier circuit in order to reduce the switching loss for a diode in high frequencies. We prototype the class E rectifier circuit, and the half-wave and the full-wave rectifier circuits for comparisons. Our experiment is to measure and compare a rectification efficiency among these circuits for the input of an AM modulated waves. In this experiment, we also check an effect on the efficiency with and without matching circuits to signal generator. We clarify thorough the experiment that the rectification efficiency varies according to the degree of modulation but independent of the modulation frequency.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Class E rectifier circuit / Switching loss / Energy harvesting / AM modulation
Paper # EMT2020-4
Date of Issue 2020-05-15 (EMT)

Conference Information
Committee EMT / IEE-EMT
Conference Date 2020/5/22(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Tokyo Metropolitan Univ., Akihabara Satellite Campus
Topics (in Japanese) (See Japanese page)
Topics (in English) Electromagnetic Theory, etc.
Chair Koichi Hirayama(Kitami Inst. of Tech.) / Keiji Goto(National Defense Academy)
Vice Chair Hiroyuki Deguchi(Doshisha Univ.)
Secretary Hiroyuki Deguchi(Fukuoka Inst.of Tech.) / (Tokyo Metropolitan Univ.)
Assistant Junichiro Sugisaka(Kitami Inst. of Tech.) / Tsuyoshi Matsuoka(Kyushu Sangyo Univ.)

Paper Information
Registration To Technical Committee on Electromagnetic Theory / Technical Meeting on Electromagnetic Theory
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Efficiency measurements and comparisons for the class E rectifier circuit in AM wave
Sub Title (in English)
Keyword(1) Class E rectifier circuit
Keyword(2) Switching loss
Keyword(3) Energy harvesting
Keyword(4) AM modulation
1st Author's Name Takuya Komatsu
1st Author's Affiliation Fukuoka Institute of Technology(FIT)
2nd Author's Name Keitaro Omua
2nd Author's Affiliation Fukuoka Institute of Technology(FIT)
3rd Author's Name Norimasa Nakashima
3rd Author's Affiliation Fukuoka Institute of Technology(FIT)
Date 2020-05-22
Paper # EMT2020-4
Volume (vol) vol.120
Number (no) EMT-33
Page pp.pp.19-24(EMT),
#Pages 6
Date of Issue 2020-05-15 (EMT)