三叶草天线:用于CHIME的紧凑型宽频带双极化馈源

2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2014-07-13 DOI:10.1109/ANTEM.2014.6887670

Meiling Deng, D. Campbell-Wilson

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引用次数: 24

摘要

我们已经开发出一种紧凑、宽带宽、双偏振三叶草形天线来为CHIME射电望远镜提供信号。使用CST对天线进行了调谐，使其在一个倍频的带宽上小于-10dB s11，覆盖了从400MHz到800MHz的整个CHIME频段，这一性能已通过测量得到证实。天线由传统的低损耗电路板制成，可以经济地批量生产，这很重要，因为CHIME需要1280个馈电。它们足够紧凑，可以在任何方位旋转时以30厘米的距离放置成线性阵列。

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The cloverleaf antenna: A compact wide-bandwidth dual-polarization feed for CHIME

We have developed a compact, wide-bandwidth, dual-polarization cloverleaf-shaped antenna to feed the CHIME radio telescope. The antenna has been tuned using CST to have smaller than -10dB s11 for over an octave of bandwidth, covering the full CHIME band from 400MHz to 800MHz and this performance has been confirmed by measurement. The antennas are made of conventional low loss circuit boards and can be mass produced economically, which is important because CHIME requires 1280 feeds. They are compact enough to be placed 30cm apart in a linear array at any azimuthal rotation.

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

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