空腔背圆极化螺旋天线

2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2014-07-13 DOI:10.1109/ANTEM.2014.6887757

A. Mehrabani, L. Shafai

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引用次数: 4

摘要

本文介绍了一种腔背螺旋天线。天线是一个四臂阿基米德螺旋天线。为了有效地引导上半空间区域的辐射，螺旋天线背后有一个导电腔，其周围填充了一个吸收环。天线辐射圆极化波。周围空腔的高度仅为7mm，这导致了极低的轮廓结构。研究了近1 ~ 8GHz宽频带的极化纯度和天线增益。

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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Cavity backed circularly polarized spiral antennas

In this paper, a cavity backed spiral antenna is introduced. The antenna is a four-arm Archimedean spiral antenna. To effectively direct the radiation in the upper half space region, the spiral antenna is backed by a conducting cavity, which is peripherally filled by an absorber ring. Antenna radiates circularly polarized waves. The height of the surrounding cavity is only 7mm, which leads to an extremely low profile structure. The polarization purity and antenna gain are investigated over a wide frequency bandwidth of near 1 to 8GHz.

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2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)

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