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Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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A DUAL-BAND CIRCULARLY POLARIZED STUB LOADED MICROSTRIP PATCH ANTENNA FOR GPS APPLICATIONS

By A. A. Heidari, M. Heyrani, and M. Nakhkash

Full Article PDF (834 KB)

Abstract:
A single-feed low-profile and easy to fabricate circularly polarized microstrip patch antenna has been developed for GPS applications. For dual frequency operation, four slots are etched near edges of the patch and a crossed slot etched in the center for generating circular polarization. In order to reducing the frequency ratio of two frequency bands of the antenna, the patch is loaded by four short circuit microstrip stubs. The paper reports several simulation results that confirm the desired characteristics of the antenna. Using stub loading, the frequency ratio of two bands of the antenna can be, even, reduced to 1.1.

Citation:
A. A. Heidari, M. Heyrani, and M. Nakhkash, " a dual - band circularly polarized stub loaded microstrip patch antenna for GPS applications ," Progress In Electromagnetics Research, Vol. 92, 195-208, 2009.
doi:10.2528/PIER09032401
http://www.jpier.org/PIER/pier.php?paper=09032401

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