Dual-Polarized Planar Feed for Low-Profile Hemispherical Luneburg Lens Antennas

被引：23

作者：

Weily, Andrew R. ^{[1
]}

Nikolic, Nasiha ^{[1
]}

机构：

[1] CSIRO ICT Ctr, Epping, NSW 1710, Australia

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2012年 / 60卷 / 01期

关键词：

Array antenna; Luneburg lens; microstrip antenna; planar antenna; Satcom-on-the-move (SOTM); DESIGN;

D O I：

10.1109/TAP.2011.2167941

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A dual-polarized planar feed antenna suitable for illuminating a hemispherical Luneburg lens on a ground plane operating at Ku band is presented. Compared to a waveguide feed, the planar antenna has the advantage of reducing the overall profile of the lens system. The planar feed is realized using a 2 x 2 array of stacked patches, and orthogonal polarizations of the patches use different coupling methods to increase isolation between the two ports of the device. Simulated S-parameters, radiation patterns, gain, directivity, and efficiency of the planar feed are compared with measured results. Measured radiation patterns and gain are also presented for a commercial Luneburg lens illuminated by the planar feed, to characterize the combined lens/feed performance and to validate the utility of the planar feed design.

引用

页码：402 / 407

页数：6

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