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Design of Three-elements CRPA Arrays Using Improved Low-elevation Gain  

Yoo, Sungjun (홍익대학교 전자전기공학과 안테나 시스템 및 응용 연구실)
Byun, Gangil (홍익대학교 과학기술연구소)
Lee, Jun-yong (홍익대학교 컴퓨터공학부)
Choo, Hosung (홍익대학교 전자전기공학과 안테나 시스템 및 응용 연구실)
Publication Information
Journal of Satellite, Information and Communications / v.12, no.2, 2017 , pp. 83-88 More about this Journal
Abstract
In this paper, we propose a three-element CRPA array with improved low-elevation gain. The proposed antenna consists of a feed patch and a radiating patch, and the feed patch is connected by a coaxial cable. The radiating patch is electromagnetically coupled to the feed patch, which allows to improve the low-elevation gain of the antenna. To demonstrate the suitability of the proposed antenna, the antenna characteristics are measured in a full anechoic chamber. The resulting bore-sight gain is 2.8 dBic with an axial ratio of 2.7 dB, and the average gain at the low-elevation direction of $75^{\circ}$ is -1.4 dBic. The results verify that the proposed antenna is suitable for CRPA arrays with anti-jamming capability.
Keywords
GPS antenna; controlled reception pattern antenna array; microstrip patch antennas; low-elevation gain antenna; antenna array;
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