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A PIN-LOADED MICROSTRIP PATCH ANTENNA WITH THE ABILITY TO SUPPRESS SURFACE WAVE EXCITATION

By A. R. AlAjmi and M. A. Saed

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Abstract:
A circular microstrip patch antenna design is proposed for applications that require suppression of surface waves and lateral waves. The proposed design is composed of a circular patch loaded with a single shorting pin on a grounded inhomogeneous dielectric substrate with a desired effective permittivity. The modal equation for the normalized resonance frequency of this design is solved numerically. Simulated and measured radiation patterns show that a good reduction of surface waves and lateral waves is achieved. A comparison between the present work and an alternative design in the literature is presented in this paper. The proposed design could find applications in large patch antenna arrays where mutual coupling needs to be eliminated and in high-precision global positioning system receivers where multipath interfering signals associated with low-angle reflection affect position accuracy.

Citation:
A. R. AlAjmi and M. A. Saed, "A PIN-Loaded Microstrip Patch Antenna with the Ability to Suppress Surface Wave Excitation," Progress In Electromagnetics Research C, Vol. 62, 131-137, 2016.
doi:10.2528/PIERC16012001
http://www.jpier.org/pierc/pier.php?paper=16012001

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