一种用于超高频射频识别的小型宽带圆极化印刷单极天线

2021 IEEE International Conference on RFID Technology and Applications (RFID-TA) Pub Date : 2021-10-06 DOI:10.1109/RFID-TA53372.2021.9617318

T. Fujimoto, N. Otsuka, Chai-Eu Guan

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引用次数: 1

摘要

本文提出了一种用于圆极化(CP)的小型宽带印刷单极天线。小型化是通过在矩形贴片上插入椭圆缺口来实现的。此外，通过对微带线的非对称设计，实现了宽带圆极化。最后，利用该天线设计了超高频射频识别(RFID)天线。轴向比为3db的10db回波损耗的带宽为783MHz ~ 1132MHz(36.4%)。天线尺寸为0.51波长$\乘以中心频率$ 0.41波长。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Compact and Broadband Circularly Polarized Printed Monopole Antenna for UHF RFID

In this paper, a compact and broadband printed monopole antenna for circular polarization (CP) is proposed. The miniaturization is achieved by inserting an elliptical notch to the rectangular patch. Moreover, the broadband circular polarization is achieved by designing the antenna asymmetrically to the microstrip line. Finally, the antenna for ultrahigh frequency (UHF) radio-frequency identification (RFID) is designed by using the proposed antenna. The bandwidth of the 10dB-return loss with a 3dB-axial ratio is from 783MHz to 1132MHz (36.4%). The antenna size is 0.51 wavelength $\times$ 0.41 wavelength at the center frequency.

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2021 IEEE International Conference on RFID Technology and Applications (RFID-TA)

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