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基于RFID应用的小型化印刷偶极子天线设计

DOI: 10.13190/jbupt.200605.75.169, PP. 75-78

Keywords: RFID标签天线,印刷偶极子天线,小型化

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Abstract:

为了研究满足工程需要的RFID标签天线,以2.45GHz工作频段为例,给出了印刷偶极子标签天线以及其小型化设计。所设计的2.45GHz印刷偶极子标签天线的性能指标为在驻波比小于1.5时,工作带宽约为450MHz;天线增益为1.4dB;天线尺寸大小为37mm×45.8mm。小型化后的天线尺寸缩小为31.8mm×28.5mm,面积减小了约47%,在驻波比小于1.5时,天线带宽约220MHz,天线增益为1.2dB。此外,给出了小型化天线的实测结果,并且与理论结果进行了比较,结果吻合良好。

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