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阻抗匹配天线集成高效能量收集电路

Impedance Matching Antenna-Integrated High-Efficiency Energy Harvesting Circuit.

作者信息

Shinki Yuharu, Shibata Kyohei, Mansour Mohamed, Kanaya Haruichi

机构信息

Graduate School of Sciences and Electrical Engineering, Kyushu University, Fukuoka 819-0395, Japan.

Electronics Research Institute, Dokki, Giza 12622, Egypt.

出版信息

Sensors (Basel). 2017 Aug 1;17(8):1763. doi: 10.3390/s17081763.

DOI:10.3390/s17081763
PMID:28763043
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5579744/
Abstract

This paper describes the design of a high-efficiency energy harvesting circuit with an integrated antenna. The circuit is composed of series resonance and boost rectifier circuits for converting radio frequency power into boosted direct current (DC) voltage. The measured output DC voltage is 5.67 V for an input of 100 mV at 900 MHz. Antenna input impedance matching is optimized for greater efficiency and miniaturization. The measured efficiency of this antenna-integrated energy harvester is 60% for -4.85 dBm input power and a load resistance equal to 20 kΩ at 905 MHz.

摘要

本文描述了一种带有集成天线的高效能量收集电路的设计。该电路由串联谐振和升压整流电路组成，用于将射频功率转换为升压直流（DC）电压。在900MHz频率下，当输入为100mV时，测得的输出直流电压为5.67V。为了提高效率和实现小型化，对天线输入阻抗匹配进行了优化。在905MHz频率下，对于-4.85dBm的输入功率和20kΩ的负载电阻，该集成天线能量收集器测得的效率为60%。

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本文引用的文献

1
Enhanced Passive RF-DC Converter Circuit Efficiency for Low RF Energy Harvesting.用于低射频能量收集的增强型无源射频-直流转换器电路效率
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Optimization of passive low power wireless electromagnetic energy harvesters.无源低功耗无线电磁能量收集器的优化。
Sensors (Basel). 2012 Oct 11;12(10):13636-63. doi: 10.3390/s121013636.