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Beam Scanning UHF RFID Reader Antenna Design for Metal Environment Application (Invited paper)

机译:光束扫描UHF RFID读卡器天线设计用于金属环境应用(邀请纸)

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摘要

A two-dimensionally scanning (2D) antenna array and polling beam scanning antenna array is designed in UHF RFID system with high stability and reliability in metal environment. The two-dimensionally scanning (2D) antenna array is composed of 3×3 antenna array, a feeding network and switches. The measured -10dB impedance bandwidth is around 30MHz. The scanning beam directions covers ±60° and scanning direction gain is 9~10dBi, respectively. The polling beam scanning antenna array is composed of three 1×2 planar inverted-F antenna (PIFA) arrays and polling beam scanning feeding network consisting switch and control module. The measured bandwidth is 50MHz (895–945MHz) under the condition of VSWR less than 2, covering Chinese, Canadian, Korean, and Australian standard of frequency ranges. The steering radiation pattern is -20°, 0°, and +25° in xoz-plane. The read rate achieve 100% in the metal environment.
机译:在UHF RFID系统中设计了二维扫描(2D)天线阵列和轮询梁扫描天线阵列,具有高稳定性和金属环境的可靠性。二维扫描(2D)天线阵列由3×3天线阵列,馈电网络和开关组成。测量的-10dB阻抗带宽约为30MHz。扫描光束方向覆盖±60°和扫描方向增益分别为9〜10dBi。轮询光束扫描天线阵列由三个1×2平面倒-f天线(PIFA)阵列组成,并且轮询光束扫描馈送网络组成,包括开关和控制模块。测量的带宽是50MHz(895-945MHz),在VSWR的情况下,覆盖中文,加拿大,韩国和澳大利亚频率范围。转向辐射图案为-20°,0°,XOZ平面中+ 25°。读取速率在金属环境中实现100 %。

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