摘要
为了改善传统RFID阅读器载波泄露严重和提高射频前端动态范围,提高信号质量,本文在分析产生载波泄露原因的前提下,指出以前学者提出的载波抑制方法的不足,提出了一种新的方法:3路同时抵消和阻抗自动匹配的闭环反馈思路。由于本思路更接近工程,没有进行系统仿真,且实验条件所限没有进行实验验证。
In order to improve the conventional RFID reader carrier leakage and improve theRF front-end serious dynamic range,improved signal quality,this paper analyzed the reasons for disclosure under the premise of the carrier and previous scholars lack of carrier suppression method,a new approach is proposed：3 simultaneous cancellation and automatic impedance matching of the closed-loop feedback ideas.Since the idea is closer to Engineer,there is no system simulation,and experimental conditions.
出处
《电子设计工程》
2011年第22期118-119,122,共3页
Electronic Design Engineering
关键词
RFID
载波抑制
闭环反馈
阻抗匹配
RFID
carrier suppression
closed-loop feedback
impedance matching
