Design and experiment of RF rectifiers for wireless power transmission

A. Mabrouki, M. Latrach, Z. Sayegh
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引用次数: 15

Abstract

This paper presents the design and experiment of series mounted diode rectifier and single stage voltage doubler rectifier at 2.45GHz for applications involving microwave power transmission. Input matching circuit and harmonics filtering at both the input and output have been optimized for high efficiency operation. The series topology is dedicated to low input power conversion. Measurement results show that 40% and 27% RF-DC conversion efficiency are achieved for 0 dBm and -5 dBm input power respectively at 2.45GHz. A maximum efficiency of 54% is obtained for an input power of 12 dBm and a 3V output DC voltage is measured at a 1KΩ DC load when the rectifier is matched to 50Ω. The voltage doubler structure is aimed for high input power conversion and exhibits more than 4V at 2.4GHz for input power above 15 dBm.
无线电力传输射频整流器的设计与实验
本文介绍了用于微波功率传输的串联二极管整流器和2.45GHz单级倍压整流器的设计与实验。对输入匹配电路和输入输出谐波滤波进行了优化,实现了高效率运行。该系列拓扑结构专门用于低输入功率转换。测量结果表明,在2.45GHz频段,当输入功率为0 dBm和-5 dBm时,RF-DC转换效率分别达到40%和27%。当整流器与50Ω匹配时,输入功率为12 dBm,在1KΩ直流负载下测量3V输出直流电压,最高效率为54%。该倍压器结构旨在实现高输入功率转换,当输入功率大于15 dBm时,在2.4GHz时可显示超过4V。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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