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2011-12-29
Improved Performance of Circularly Polarized Antenna Using Semi-Planar Chiral Metamaterial Covers
By
Progress In Electromagnetics Research, Vol. 123, 337-354, 2012
Abstract
The influence of semi-planar chiral metamaterial (CMM) structures on the important characteristics of circularly polarized (CP) antennas is investigated in this paper. Based on this idea, CP planar two-arm Archimedean spiral (ARSPL) antenna and helical antenna are designed and the effects of chiral covers on their gain (or directivity), axial-ratio (AR), and return loss are considered. The results demonstrate that this method is greatly effective and the addition of a semi-planar CMM cover at an optimized distance over the CP antenna, significantly improves its gain and axial ratio.
Citation
Davoud Zarifi Homayoon Oraizi Mohammad Soleimani , "Improved Performance of Circularly Polarized Antenna Using Semi-Planar Chiral Metamaterial Covers," Progress In Electromagnetics Research, Vol. 123, 337-354, 2012.
doi:10.2528/PIER11110506
http://www.jpier.org/PIER/pier.php?paper=11110506
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