Vol. 86

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2008-10-07

A Novel Microstrip Patch Antenna with Reduced Surface Wave Excitation

By Samir Mahmoud and Ayed R. Al-Ajmi
Progress In Electromagnetics Research, Vol. 86, 71-86, 2008
doi:10.2528/PIER08092403

Abstract

A microstrip circular patch antenna with two shorting pins is proposed as an antenna with reduced surface wave and lateral wave excitation. Theoretical analysis of the cavity modes of the patch lead to a design procedure for the antenna. Simulation results using the IE3DZeland software support the theory and verify the reduced surface wave capability. By using four shorting pins instead of two, we demonstrate the possibility of achieving circular polarization with high polarization purity in addition to the reduced surface wave. It is demonstrated that a discrimination against the lateral wave of 30dB or more is achievable. Applications include design of large patch arrays with reduced coupling and GPS receiving antennas that reduce low angle interfering signals.

Citation


Samir Mahmoud and Ayed R. Al-Ajmi, "A Novel Microstrip Patch Antenna with Reduced Surface Wave Excitation," Progress In Electromagnetics Research, Vol. 86, 71-86, 2008.
doi:10.2528/PIER08092403
http://www.jpier.org/PIER/pier.php?paper=08092403

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