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Circularly polarized square slot microstrip antenna for RFID applications

机译:用于RFID应用的圆极化方缝微带天线

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摘要

In this paper, a novel circularly polarized square slot microstrip antenna is proposed for radio frequency identification (RFID) applications. The circular polarization is achieved by incorporating an arc-shaped strip in the square slot antenna. This antenna is fed by deformed bent feeding line to achieve a broad bandwidth (BW). The key parameters of the antenna are used for parametric study to understand the influence on the antenna performance. To validate simulation results of the design, a prototype is fabricated on the commercially available FR4 material. Measured results show a good agreement with the simulated results. It is found that the antenna shows an impedance BW of 170 MHz (844-1014 MHz) and axial-ratio BW of 170 MHz (834-1004 MHz), which shows that the proposed antenna is a good candidate to be used as a RFID antenna.
机译:在本文中,提出了一种新颖的圆极化方槽微带天线,用于射频识别(RFID)应用。圆极化是通过在方形缝隙天线中加入弧形条来实现的。该天线由变形的弯曲馈线馈电,以实现较宽的带宽(BW)。天线的关键参数用于参数研究,以了解对天线性能的影响。为了验证设计的仿真结果,在商用FR4材料上制造了原型。测量结果与仿真结果吻合良好。发现该天线的阻抗带宽为170 MHz(844-1014 MHz),轴向比带宽为170 MHz(834-1004 MHz),这表明所建议的天线是用作RFID​​的良好候选者。天线。

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