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Bandwidth Enhancement of Circularly Polarized Hexagonal Microstrip Patch Antenna using L-Cut in Patch

Author : Umesh Kumar Sain and Pramod Kumar Gupat

Pages : 251-254
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Hexagonal shaped microstrip patch antenna is presented with single coaxial feed, along with L-cut in hexagonal
patch to improve the impedance bandwidth and circular polarization bandwidth. The circular polarization of two
antennas is obtained, for simple hexagonal patch axial ratio (AR) is 1.31% and 2.25% axial ratio for hexagonal patch
with L-cut in patch antenna. The impedance bandwidth obtained for simple patch is 1.85% and 8.5% for L-cut in
hexagonal patch. The feed position is optimized for the best impedance matching to a 50 Ω coaxial feed line.
Radiation efficiency and average gain of antenna are evaluated.

Keywords: Microstrip antenna, hexagonal microstrip antenna, single coaxial feed, circularly polarized microstrip

Article published in International Journal of Current Engineering and Technology, Vol.6, No.1 (Feb-2016)


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