Stub loaded dual band circulaly polarized microstrip antenna for GPS application
Saleha Shaikh
, Danish Pathan, Danish Shaikh, Suraj Mishra, Pratima Rao
Assistant professor, EXTC, Theem COE, India
Assistant professor, EXTC, Theem COE, India
Vol. 3, Issue 4 pp. 128-130 🌐 Open Access
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. Using stub loading, the frequency ratio of two bands of the antenna can be, even, reduced.
Keywords:
Microstrip Antenna, stub,Circular polarization, Axial Ratio, Bandwidth
