Wide-coverage array antenna using a dual-beam switching for UHF RFID applications
Wide-coverage array antenna using a dual-beam switching for UHF RFID applications
复制标题
采用双波束切换的广覆盖阵列天线，适用于 UHF RFID 应用
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Jong
中科院分区：
文献类型：
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作者：
Wang‐Sang Lee;S. Khang;Wonseok Lee;H. Tae;Jong
基于双波束切换技术，提出了一种4 × 4阵列天线，该阵列天线可产生3个双波束，用于超高频（UHF）射频识别（RFID）应用。所提出的4 × 4矩阵生成三个双波束，其可以通过覆盖180°的宽空间覆盖来找到标签的近似位置。主波束方向可以通过选择所提出的矩阵的适当的输入端口来控制。由于结构紧凑，反射系数很低，采用该4×4矩阵构成了圆极化方形四臂螺旋天线（QSA）阵列。所制作的阵列天线工作在902-928 MHz频段，并产生±12°、±39°和±68°的三个双波束。
Based on a dual-beam switching, the wide-coverage array antenna with a 4 × 4 proposed matrix which generates three dual-beams is presented for the ultra high frequency (UHF) radio frequency identification (RFID) applications. The 4 × 4 proposed matrix generates the three dual-beams which can find the approximate location of a tag by covering the wide spatial coverage of 180°. The main beam directions can be controlled by selecting the appropriate input port of the proposed matrix. Due to the compact structure and very low reflection coefficient, the circular polarized square quadrifilar spiral antenna (QSA) array incorporated with the 4×4 proposed matrix has been configured. The fabricated array antenna operates at the 902-928 MHz band and produces three dual-beams at ±12°, ±39°, and ±68°.