Broadband RFID tag antenna with quasi-isotropic radiation pattern

被引：84

作者：

Cho, C

Choo, H

Park, I

机构：

[1] Hongik Univ, Sch Elect & Elect Engn, Seoul 121791, South Korea

[2] Ajou Univ, Dept Elect & Comp Engn, Suwon 443749, South Korea

来源：

ELECTRONICS LETTERS | 2005年 / 41卷 / 20期

关键词：

D O I：

10.1049/el:20052337

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：

A passive RFID tag antenna in the UHF band using two bent dipoles and a modified double T-matching network is proposed. The antenna was fabricated with a thin copper layer printed on a 50 mu m-thick PET substrate for low-cost production. The proposed antenna provided a quasi-isotropic radiation pattern and a fairly broad bandwidth S-11 < -10 dB, 8.5%) for conjugate-matching with a commercial tag chip. The efficiency of the antenna was about 90% in the operating frequency band. The measured readable range was between 170 - 240 cm for an arbitrary rotation angle of the tag.

引用

页码：1091 / 1092

页数：2