基于寄生振子的多频印刷天线

基于寄生振子的多频印刷天线

内容简介：RFID技术近年来发展迅猛,但是各国使用的频段却不统一。为了增强RFID系统的兼容性,本文设计一款应用于RFID标签的3频印刷天线。采用加载寄生振子实现天线的3频工作。使用ADS仿真软件对本文所设计的天线进行了仿真研究,结果表明反射损耗小于-15dB时天线的工作带宽分别为782.5～851.1MHz,919.3～995.5MHz,2.446～2.577GHz,满足设计要求。这3个频段分别覆盖了中国划分的两个RFID频段以及国际通用的2.45GHz频段。

Abstract：RFID technology is developing rapidly in recent years,but the bands not unified in the global.In order to enhance the compatibility of RFID systems,we designed a multi-frequency printed antenna by adding the parasitic patch unit.After emulating the antenna by ADS software,emulation results show that it can cover frequency ranges of 782.5～851.1MHz,919.3～995.5MHz and 2.446～2.577GHz when return loss is less than-15 dB.The results meet design requirements.These three bands can meet the band divided of RFID in China and the standard of international common at 2.45GHz.

作者：牛凤文, 廖同庆,

关键词：印刷天线, 寄生振子, 多频,