期刊
IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS
卷 -, 期 -, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LMWT.2023.3330322
关键词
Class-F; dual-band; rectifier; wireless power transmission (WPT)
This letter proposes a high-efficiency dual-band class-F rectifier for wireless power transmission. The rectifier achieves good class-F operation by controlling the second and third harmonics in dual bands, and improves the rectifying efficiency through theoretical analysis of the harmonic termination network.
This letter proposes a high-efficiency dual-band class-F rectifier for wireless power transmission (WPT). The rectifier comprises a dual-band harmonic termination network, a dual-band matching network, a single Schottky diode, and a dc pass filter. A theoretical analysis of the harmonic termination network is performed to improve the rectifying efficiency. The network exhibits good class-F operation by controlling the second and third harmonics in dual bands. A rectifier operating at 2.45 and 5.8 GHz was designed, fabricated, and measured for validation. The measurements show maximum RF-dc conversion efficiencies of 74.9% and 61.9% with 200 and 500 Omega loads at 2.45 and 5.8 GHz, respectively. The proposed rectifier achieves dual-band harmonic control with high efficiency.
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