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1-by-7 circularly-polarized shaped-beam antenna array for radio frequency identification (RFID) reader applications at 2.4 GHz

机译:用于射频识别(RFID)读卡器应用的1×7圆偏振形光束天线阵列在2.4 GHz

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This paper presents a compact design of circularly-polarized (CP) shaped-beam antenna array for RFID reader applications at 2.4 GHz. Aperture-coupled patch configuration using ring radiator was adopted as the array element with L-shaped aperture to maintain good axial ratio of the single element. A 10-degree down-tilt in the main beam was realized through synthesized amplitude and phase distributions of the feeding network. The fabricated 1-by-7 array featured a 32% impedance bandwidth centered at 2.4 GHz with 11.2 dBic gain and a 10° down-tilt in the main beam.
机译:本文介绍了2.4 GHz的RFID读卡器应用的圆极化(CP)形梁天线阵列的紧凑设计。采用具有环形散热器的孔径耦合贴片配置作为具有L形孔的阵列元件,以保持单个元件的良好轴向比。通过馈电网的合成幅度和相位分布实现主光束中的10度下降倾斜。制造的1×7阵列采用32%阻抗带宽以2.4 GHz为中心,11.2 DBIC增益和主梁中的10°下降倾斜。

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