A High-Efficiency Inverse Class-F Microwave Rectifier for Wireless Power Transmission

A high-efficiency inverse class-F microwave rectifier for wireless power transmission is described in this letter. The proposed inverse class-F harmonic termination network is realized by connecting a λ/12 open-ended transmission line in parallel with the diode cathode, and a λ/8 short-ended transmi...

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Bibliographic Details
Published inIEEE microwave and wireless components letters Vol. 29; no. 11; pp. 725 - 728
Main Authors Zhao, Fading, Inserra, Daniele, Wen, Guangjun, Li, Jian, Huang, Yongjun
Format Journal Article
LanguageEnglish
Published IEEE 01.11.2019
Subjects
Harmonic analysis
Harmonic termination circuit
Microwave circuits
microwave rectifier
Microwave transistors
Power system harmonics
Schottky diodes
wireless power transmission (WPT)
Wireless sensor networks
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Summary:A high-efficiency inverse class-F microwave rectifier for wireless power transmission is described in this letter. The proposed inverse class-F harmonic termination network is realized by connecting a λ/12 open-ended transmission line in parallel with the diode cathode, and a λ/8 short-ended transmission line in series with the diode anode. This structure yields a compact layout, and measurement results have demonstrated a peak conversion efficiency of 80.4% for an input power of 13 dBm at 2.35 GHz, and an efficiency larger than 60% within the bandwidth 2.25-3 GHz and for a wide range of output loads.
ISSN:1531-1309
1558-1764
DOI:10.1109/LMWC.2019.2944525