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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >Backfire suppressed low profile aperture coupled stacked patch antenna backed by a high impedance surface (HIS) reflector for UHF RFID reader applications
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Backfire suppressed low profile aperture coupled stacked patch antenna backed by a high impedance surface (HIS) reflector for UHF RFID reader applications

机译：抑制抑制低轮廓孔径耦合堆叠的贴片天线，由高阻抗表面（HIS）反射器用于UHF RFID读卡器应用

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摘要

In this paper, a backfire suppressed aperture coupled circularly polarized (CP) stacked patch antenna for universal ultra-high frequency (UHF) radio frequency identification applications is presented. Cross-polarized backfire radiation patterns were successfully suppressed by a planar high impedance surface (HIS) reflector. The size of the fabricated antenna is 250 x 250 x 26.9 mm(3) (0.71 lambda(0) x 0.71 lambda(0) x 0.076 lambda(0)) and its peak gain value of 7.1 dBi is measured. The distance between the antenna and the HIS reflector is only 4.8 mm (0.014 lambda(0)). The HIS reflector suppressed cross-pol backfire radiations by about 10 dB. Detailed antenna and HIS reflector design are discussed thoroughly in this paper. The presented backfire suppression technique using the HIS reflector is scalable to other applications and frequency bands. This paper demonstrates the feasibility of the HIS structure at UHF band.
机译：本文介绍了一种反射抑制孔径耦合的圆极化（CP）堆叠用于通用超高频（UHF）射频识别应用的堆叠贴片天线。 通过平面的高阻抗表面（HIS）反射器成功地抑制了交叉极化的回火辐射图案。 制造天线的尺寸为250×250×26.9 mm（3）（0.71λ（0）×0.71λ（0）×0.076λ（0）），测量其峰值增益值7.1dBi。 天线和其反射器之间的距离仅为4.8毫米（0.014λ（0））。 他的反射器抑制了十字极辐射辐射约10dB。 本文彻底讨论了详细的天线及其反射器设计。 使用其反射器的呈现的回火抑制技术可扩展到其他应用和频带。 本文展示了他在UHF频段结构的可行性。

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