A DUAL-BAND CIRCULARLY POLARIZED STUB LOADED MICROSTRIP PATCH ANTENNA FOR GPS APPLICATIONS

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...

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Bibliographic Details
Published in:Electromagnetic waves (Cambridge, Mass.) Mass.), 2009, Vol.92, p.195-208
Main Authors: Heidari, Abbas Ali, Heyrani, Mohammad, Nakhkash, Mansor
Format: Article
Language:English
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Summary: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.
ISSN:1559-8985
1070-4698
1559-8985
DOI:10.2528/PIER09032401