一种小型化的高效率微波整流电路分析与设计
收稿日期: 2009-07-19
网络出版日期: 2011-02-28
基金资助
上海市重点学科建设资助项目（S30108）
Analysis and Design of Rectifying Circuit with Compact Structure and High Efficiency
Received date: 2009-07-19
Online published: 2011-02-28
提出一种新颖的微带线结构微波整流电路.用ADS 2006A软件进行分析和设计，整流电路在5.80 GHz工作频率，负载为320 Ω时，微波直流转换效率达到81.4%，转换效率75%以上的频带带宽为300 MHz.实验结果表明，负载为298 Ω时测得最高电压为4.57 V，转换效率达到68.5%.该整流电路具有小型化、高转换效率、易集成的特点，可应用到射频识别（radio frequency identification,RFID）系统和无线传感器的能量供给中.
关键词： 整流电路；整流天线；转换效率；射频识别
高艳艳，杨雪霞，周建永 . 一种小型化的高效率微波整流电路分析与设计[J]. 上海大学学报(自然科学版), 2011 , 17(1) : 64 -67 . DOI: 10.3969/j.issn.1007-2861.2011
A novel microstrip rectifying circuit is proposed in this paper. The rectifying circuit is analyzed and designed with the software ADS 2006A. Simulation results show that the rectifying circuit obtains 81.4% conversion efficiency from microwave to DC power on a load of 320 Ω at 5.80 GHz. The bandwidth of conversion efficiency more than 75% is 300 MHz. Experiment results indicate that the highest voltage of 4.57 V is measured on a load of 298 Ω with conversion efficiency of 68.5%. The rectifying circuit has advantages of compact structure, high conversion efficiency and ease of integration. It can be applied to energy supply for radio frequency identification (RFID) systems and wireless sensors.
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