期刊
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
卷 32, 期 6, 页码 760-763出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LMWC.2022.3160272
关键词
Radio frequency; Prototypes; Optimization; Wireless power transfer; Bandwidth; Wireless communication; Impedance; dc-dc boost; multi-sine; wireless power transfer
资金
- Autostrade Tech, Italy, through the Joint Laboratory Technologies and Systems for Inf-Mobility
This work focuses on new design techniques for RF to dc converters in combination with commercial dc/dc converters, aiming to achieve efficient wireless power transfer. The study explores the impact of applying a multi-sine RF input signal on power transfer efficiency and utilizes source-pull optimization to maximize RF to dc energy conversion and current throughput. Experimental results demonstrate a 1.8-fold improvement compared to conventional designs at a frequency of 5.8 GHz.
This work deals with new design techniques of RF to dc converter coupled with commercial dc/dc converters, for efficient wireless power transfer. The dc/dc boost converter operates as current sinks, thus imposing challenging design constraints. We investigate the impact of applying a multi-sine RF input signal on power transfer efficiency, involving a source-pull optimization to maximize RF to dc energy conversion and maximizing the current throughput. This letter provides an experimental demonstration of 1.8 improvements with respect to conventional design at the operative frequency of 5.8 GHz.
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