一种915MHz紧凑型肖特基二极管微波整流电路

A 915 MHz compact Schottky diode microwave rectifier

摘要:

为了提高射频标签(RFID)中基于肖特基二极管微波整流电路的效率，采用微带结构实现了一种915 MHz紧凑型的整流电路。该微波整流电路具有质量轻、尺寸小、整流输入功率动态范围大等特点，设计的仿真和实验结果显示：输入微波功率在13 dBm~22 dBm的情况下，均获得了高于60%的整流效率。通过完善改进电路，可以进一步提高整流的效率，并应用于微波无线能量传输或大型RFID的微波整流天线。

Abstract:

In order to improve the performance of Radio Frequency Identification(RFID) microwave rectifiers with microwave Schottky diodes, a compact microwave rectifier at 915 MHz was designed based on microstrip transmission lines in this study. The measured results show that the rectification efficiency is above 60% over the range of input microwave power from 13 dBm to 22 dBm. In the future, the performance of the rectifier can be further improved with better circuit designs, and it can be applied to microwave wireless power transmission systems and RFID rectennas.