A New High Performance GPS Antenna Design

Raj Mittra, Rugui Yang, M. Irsadi Aksun, Mike Itoh and Masao Arakawa

Abstract:	In this paper, we present a novel design for a dual- band, circularly-polarized (CP) antenna for GPS applications. The design is based upon the use of an open rectangular cavity type structure for the lower frequency of 1.227 GHz, and a patch resonator for the higher frequency of 1.575 GHz. The feed for the cavity resonator is a coaxial line, whereas the feed for the patch is a combination of a coaxial and either a half-loop, a microstrip or a coplanar line followed by a probe. Several different models of the antenna have been built and tested experimentally, and have been found to show very desirable CP pattern, impedance and bandwidth characteristics.
Published in:	Proceedings of the 5th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1992) September 16 - 18, 1992 Albuquerque, NM
Pages:	671 - 675
Cite this article:	Mittra, Raj, Yang, Rugui, Aksun, M. Irsadi, Itoh, Mike, Arakawa, Masao, "A New High Performance GPS Antenna Design," Proceedings of the 5th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1992), Albuquerque, NM, September 1992, pp. 671-675.
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