Compact Circularly Polarized RFID Tag Antenna with an Embedded U-shaped Feedline for Metallic Surfaces

被引：0
|
作者：
Pan, Te [1 ]
Zhang, Shuai [2 ]
He, Zhibin [1 ]
Liu, Hui [1 ]
He, Sailing [1 ,2 ]
机构：
[1] South China Normal Univ, Acad Adv Optoelect, Ctr Opt & Electromagnet Res, Guangzhou, Guangdong, Peoples R China
[2] Royal Inst Technol, Stockholm, Sweden
来源：
PIERS 2014 GUANGZHOU: PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM | 2014年
关键词：
DESIGN;
D O I：
暂无
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 radio frequency identification (RFID) tag antenna with circular polarization (CP) radiation is proposed to operate at 902-928MHz and mount on metallic surfaces. A U-shaped terminal short-circuited feedline welded to a tag-chip is embedded in a rectangular slot to achieve a coupled feeding and a good impedance matching. By employing two truncated corners and two L-shaped slots with unequal length on the patch, a good left-hand circular polarization (LHCP) and compact size are obtained. The measured impedance bandwidth of the antenna is 85MHz (875-960 MHz), while the simulated 3-dB CP bandwidth is 6MHz (912-918 MHz). The proposed tag antenna shows reasonable read ranges when mounted on the metal plate in the following experiment.
引用
收藏
页码：1567 / 1571
页数：5
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