Compact Dual-band Circularly Polarized Microstrip Antenna with Separated Transmitting and Receiving Ports for RFID Reader Applications

被引：0

作者：

Huang, Ting-Jui ^{[1
]}

Hsu, Heng-Tung ^{[1
]}

机构：

[1] Yuan Ze Univ, Dept Commun Engn, Chungli 320, Taiwan

来源：

2012 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC 2012) | 2012年

关键词：

Circular polarization; dual-band; RFID reader; antenna; UHF; ISM;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

A dual-band (UHF: 900-930 MHz, ISM: 2.35-2.5 GHz for North America Regulations) circularly polarized aperture coupled microstrip RFID reader antenna with separated transmitting (Tx) and receiving (Rx) ports has been designed, fabricated, and measured. The maximum measured LHCP antenna gain is 8.2 dBic at 910 MHz (UHF) and RHCP gain is 8.8 dBic at 2.45 GHz (ISM). The isolations between the two ports are about 10 dB and 33 dB, at 910 MHz and 2.45 GHz, respectively. The measured axial ratios are less than 2dB in the UHF band (870-950 MHz) and 3 dB in the ISM band (2.35-2.5 GHz). The proposed antenna is able to meet all the requirements for RFID reader applications.

引用

页码：1370 / 1372

页数：3

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