采用s形偶极子的宽带圆极化宽波束天线

2017 International Workshop on Antenna Technology: Small Antennas, Innovative Structures, and Applications (iWAT) Pub Date : 1900-01-01 DOI:10.1109/IWAT.2017.7915333

Long Zhang, S. Gao, Q. Luo, Wenting Li

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引用次数: 5

摘要

提出了一种具有宽带宽和宽轴向比波束宽度的圆极化(CP)印刷天线。该天线通过将线极化偶极子弯曲成可变线宽的“S”形来实现圆极化辐射。对S型天线设计中的关键参数进行了讨论和研究。研究发现，该“S”型天线具有与线极化偶极子天线相似的馈电方式、部分主平面的辐射方向图以及一个主平面的近全向辐射等特点。为了验证其性能，制作了一种地平面背馈倒s型天线并对其进行了表征。实测结果表明，该天线具有良好的CP辐射，CP波束宽度在4 ~ 6ghz。该天线在全球卫星导航系统(GNSS)和宽带广角扫描CP相控阵中具有广阔的应用前景。

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 circularly polarized wide-beamwidth antenna using S-shaped dipole

This paper presents a novel circularly polarized (CP) printed antenna with wide bandwidth and wide axial ratio (AR) beamwidth. The presented antenna is realized by bending a linearly polarized dipole into “S” shape with variable line width, which achieves circularly polarized radiation. Key parameters in designing such an “S” antenna are discussed and studied. It is found that this “S” antenna has some similar features to the linear polarized dipole, such as the feeding method, the radiation pattern in some main planes and nearly omnidirectional radiation in one main plane. To verify its performance, a ground plane backed inverted-S antenna is fabricated and characterized. Measured results confirm that the proposed antenna has good CP radiation, wide CP beamwidth from 4 to 6 GHz. The antenna is promising for applications in Global Navigation Satellite Systems (GNSS), and wideband wide-angle-scanning CP phased arrays.

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来源期刊

2017 International Workshop on Antenna Technology: Small Antennas, Innovative Structures, and Applications (iWAT)

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