用于RFID应用的螺旋形超高频近场读取器天线设计

2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI:10.1109/IMWS2.2011.6027212

Wonseok Lee, K. Oh, Jong-Won Yu

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引用次数: 7

摘要

提出了一种用于RFID应用的超高频(UHF, 840-960MHz)频段近场天线。本文提出的近场读取器天线由两条平行的螺旋形传输线组成。通过调整读取器天线两线之间的距离，可以控制两传输线之间的场强度和识别距离。天线印刷在整体尺寸为150 × 150 × 1mm的FR4印刷电路板上。所设计的近场读取器天线工作在UHF频段，测试结果表明，所设计的天线带宽约为350MHz，能够在10dbm入射功率下检测11cm距离内的UHF RFID标签。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Design of spiral-shaped UHF near-field reader antenna for RFID applications

A type of ultra-high frequency (UHF, 840–960MHz) band near-field antenna for RFID applications is proposed. The proposed near-field reader antenna consists of two spiral-shaped transmission lines and lines are parallel to each other. By adjusting the distance between two lines of the reader antenna, the strength of the field between two transmission lines and the recognition distance are able to be controlled. The antenna printed on a FR4 printed circuit board (PCB) with an overall size of 150 × 150 × 1 mm. The proposed near-field reader antenna satisfactorily operates in UHF band, and the measurements show that the proposed antenna has bandwidth of about 350MHz and is capable of detecting UHF RFID tags in 11cm distance for 10 dBm incident power.

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来源期刊

2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals

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