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首页> 外文期刊>Microwave and optical technology letters >COVERAGE AREA ENHANCEMENT OF 2.4 GHz RFID SYSTEM USING SWITCHED BEAM PATCH ANTENNA ARRAY
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COVERAGE AREA ENHANCEMENT OF 2.4 GHz RFID SYSTEM USING SWITCHED BEAM PATCH ANTENNA ARRAY

机译:使用开关波束斑贴天线阵列增强2.4 GHz RFID系统的覆盖区域

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摘要

The paper presents RF front end for coverage area enhancement of RFID systems operating at 2.4 GHz frequency (ISM band). The RF front end consists of a 1 x 4 circularly polarized micro-strip patch antenna array having the capability of steering its beam in two discrete directions. Delay line phase shifters with two switching states have been used to steer the main beam. The switching is accomplished by using PIN diodes. Using this technique the angular coverage of 56 8 has been achieved. The antenna array has a peak gain of 8.9 dB. The design is simulated and optimized in antenna design software HFSS and fabricated on FR-4 substrate. Simulated and measured results are in close agreement. (C) 2016 Wiley Periodicals, Inc. View this article online at wileyonlinelibrary.com.
机译:本文介绍了RF前端,用于增强以2.4 GHz频率(ISM频段)运行的RFID系统的覆盖范围。 RF前端由一个1 x 4圆极化微带贴片天线阵列组成,该阵列具有在两个离散方向上控制其波束的能力。具有两个开关状态的延迟线移相器已用于操纵远光灯。切换通过使用PIN二极管完成。使用该技术,已实现了56 8的角度覆盖。天线阵列的峰值增益为8.9 dB。该设计在天线设计软件HFSS中进行了仿真和优化,并制作在FR-4基板上。模拟和测量结果紧密一致。 (C)2016 Wiley Periodicals,Inc.在wileyonlinelibrary.com上在线查看此文章。

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