卫星通信用超表面槽耦合圆极化天线

2018 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2018-03-01 DOI:10.1109/COMPEM.2018.8496601

Meijun Qu, L. Deng, Shuxiang Liu, Shufang Li

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引用次数: 2

摘要

本文提出了一种用于卫星通信的新型频率无关圆极化天线。它由一个槽耦合天线和一个平面超表面组成。四根紧凑有序的l形进给线可通过金属接地嵌入的交叉槽向超表面产生能量。因此，表面波可以在超表面上传播，使天线产生额外的共振。因此，该天线具有较宽的阻抗带宽和轴比带宽。此外，该天线具有低轮廓(在3.5 GHz时为0.05 λ0)、频率无关、前后比大、高增益和宽半功率波束宽度特性。它在全球卫星通信系统和卫星导航系统(S波段和C波段)中具有很大的潜力。

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 Metasurface-Based Slot Coupled Circularly Polarized Antenna for Satellite Communication Application

In this letter, a novel frequency-independent circular polarized antenna is proposed for satellite communication application. It consists of a slot coupled antenna and a planar metasurface. Four compact sequential L-shaped feeding lines could generate energy to the metasurface through the metallic ground embedded cross slot. Therefore, surface waves could propagate on the metasurface, making the antenna generate additional resonances. Then, wide impedance bandwidth and axial ratio bandwidth of the proposed antenna can be achieved. Besides, the proposed antenna has low profile (0.05 λ0at 3.5 GHz), frequency independent, large front-to-back ratio, high gain, and wide half-power beamwidth property. It has great potential in global satellite communication systems and satellite navigation systems (S band and C band).

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2018 IEEE International Conference on Computational Electromagnetics (ICCEM)

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