AN ACCURATE METHOD FOR IMPEDANCE MEASUREMENT OF RFID TAG ANTENNA

被引：52

作者：

Kuo, S. -K. ^{[1
]}

Chen, S. -L ^{[1
]}

Lin, C. -T ^{[1
]}

机构：

[1] China Steel Corp, Steel & Aluminum Res & Dev Dept, Hsiao Kang 81233, Kaohsiung, Taiwan

来源：

PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2008年 / 83卷

关键词：

D O I：

10.2528/PIER08042104

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a method of antenna impedance measurement for RFID tag antenna based on a differential probe. The importance of accurate impedance measurement in optimal design of tag antenna, especially for the metal tags, is first addressed. Afterwards, an overview of the existing methods based on the single-ended probe and the balun probe is presented. The proposed method using the differential probe is explained based the well-known two port network model. Experiments for both balanced and unbalanced tag antenna measurement demonstrate the differential probe can provided better agreement with simulated results.

引用

页码：93 / 106

页数：14

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