用于RFID阅读器的孔径耦合双频圆极化天线

CSQRWC 2012 Pub Date : 2012-07-23 DOI:10.1109/CSQRWC.2012.6294984

H. Hsu, Ting-Jui Huang

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引用次数: 17

摘要

本文介绍了一种用于RFID阅读器的孔耦合双频圆极化天线的设计和测试。该天线可同时覆盖超高频(902 MHz ~ 928 MHz)和微波(2.4 GHz ~ 2.5 GHz)频段。耦合孔以适当的相位偏移正交排列，以实现两个波段的圆偏振。制作的原型具有良好的阻抗带宽，轴比小于3 dB，两个波段的峰值增益均为7dBi。

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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Aperture-coupled dual-band circularly polarized antenna for RFID reader applications

This paper presents the design and testing of an aperture-coupled dual-band and circularly-polarized antenna for RFID reader applications. The antenna was designed to cover both UHF (902 MHz ~ 928 MHz) and microwave (2.4 GHz ~ 2.5 GHz) bands. The coupling apertures were arranged orthogonally with proper phase offset to achieve circular polarization (CP) at both bands. The fabricated prototype exhibited good impedance bandwidth, an axial ratio of less than 3 dB, and 7dBi peak gain at both bands.

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CSQRWC 2012

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