基于偏振旋转器的宽带高增益圆极化平面天线

2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Pub Date : 2016-09-01 DOI:10.1109/ICEAA.2016.7731415

Y. Jia, Y. Liu, S. Gong

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引用次数: 12

摘要

提出了一种基于偏振旋转器的宽带高增益平面圆极化天线。所提出的圆极化(CP)天线是由一个4 × 4的极化旋转器(PR)单元阵列构成，并通过一个微带线在地平面上的狭缝进行馈电。该波由进给槽激发，用于调节宽带圆极化的轴向比。CP天线的AR带宽(AR≤3db)为13.4%，阻抗带宽(S11≤- 10db)为21%。它们的重叠频带与AR带宽相同。为了验证仿真结果，制作了天线样机并进行了测量。该天线的峰值测量增益为9.1 dBi。仿真结果与实测结果吻合较好。

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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Wideband high-gain circularly polarized planar antenna based on polarization rotator

A wideband high-gain planar antenna based on polarization rotator for circular polarization is presented. The proposed circularly polarized (CP) antenna is formed using a 4 × 4 array of polarization rotator (PR) cells and fed by a microstrip line through a slot cut on the ground plane. The PR is excited by the feeding slot and utilized to adjust axial ratio (AR) for wideband circular polarization. The CP antenna features a wide AR bandwidth (AR ≤ 3 dB) of 13.4% and an impedance bandwidth (S11 ≤ -10 dB) of 21%. Their overlapping band is the same as the AR bandwidth. To verify the simulation results, a prototype of the proposed antenna is fabricated and measured. The peak measured gain of the proposed antenna is 9.1 dBi. Good agreement is obtained between the measured and simulated results.

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来源期刊

2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)

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