Square Annular-Ring Antenna with Circular Polarization for UHF RFID Reader

被引：0

作者：

Son, Wang-Ik ^{[1
]}

Tae, Hyun-Sung ^{[1
]}

Min, Sang-Bo ^{[2
]}

Lee, Moon-Que ^{[3
]}

Yu, Jong-Won ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Elect Engn, 335 Gwahangno, Daejeon, South Korea

[2] Actenna Corp, Seoul, South Korea

[3] Univ Seoul, Seoul, South Korea

来源：

ASIA-PACIFIC MICROWAVE CONFERENCE 2011 | 2011年

关键词：

Square annular-ring antenna; circular polarization; RFID reader antennas; INTEGRATED ANTENNA;

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 square annular-ring antenna with circular polarization (CP) for ultra-high-frequency (UHF) radio frequency identification (RFID) reader is presented. The proposed annularring antenna is composed of square-shaped annular-ring radiator, which is fed by four equal amplitude signals with 90 degrees phase difference, and reflector suspended below the radiator. The proposed antenna is matched and optimized using the 4-port antenna matching condition. Experimental results show that the proposed antenna of size 200 x 200 x 11 mm(3) has the peak gain of 7.0 dBic at 915 MHz, front-to-back ratio (F/B) of 30.0 dB, axial ratio under 1.5 dB.

引用

页码：1810 / 1813

页数：4

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