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http://dx.doi.org/10.5515/KJKIEES.2016.27.9.775

Design of Dual-Band GPS Antenna Using a Single-Layer Coupled-Feed Structure  

Hur, Jun (School of Electronic and Electrical Engineering, Hongik University)
Byun, Gangil (Research Institute of Science and Technology, Hongik University)
Choo, Hosung (School of Electronic and Electrical Engineering, Hongik University)
Kay, Youngchul (School of Electronic and Electrical Engineering, Hongik University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.27, no.9, 2016 , pp. 775-782 More about this Journal
Abstract
In this paper, we propose a dual-band GPS antenna using a single-layer coupled-feed structure for improvement of isolation and design complexity. The proposed antenna consists of a central feed patch and outer dual loops, and the loops are electromagnetically fed by the feed patch to induce currents. This feeding network can improve the isolation between antenna elements arranged in small arrays because the magnetic field strength near the antenna is minimized by confining the fields around the dual loops. The isolation characteristics of the proposed antenna are compared with those of the conventional multi-layer patch antenna, and the average field strength and the isolation are improved by 3 dB and 2 dB, respectively, which verifies that the antenna is suitable for small CRPA arrays.
Keywords
GPS Array; CRPA Array; Coupled Feed; Isolation;
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