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2019-08-01
CPW-Fed Ultra-Wideband Dual-Sense Circularly Polarized Slot Antenna
By
Progress In Electromagnetics Research C, Vol. 94, 219-231, 2019
Abstract
The paper presents a new coplanar waveguide (CPW)-fed ultra-wideband (UWB) dual circularly polarized (CP) slot antenna. For realizing UWB, a wide slot is introduced in the ground plane of the proposed antenna. The circular polarizationis achieved by introducing a semi-circular stub in the square ground plane. The antenna contains two symmetrical CPW-fed ports at left and right edges to generate dual circular polarization. The evolution steps of the proposed CP antenna are presented, and antenna parameters are optimized to obtainthe desired level of isolation, return loss, and axial ratio bandwidth (ARBW). The measured impedance bandwidth (S11 ≤ -10 dB) of the antenna is 13.5 GHz (2.5-16 GHz); 3-dB ARBW is 75.23% (2.67-5.89 GHz); and isolation greater than 17 dB is obtained in the CP band. The designed dual feed CP antenna has low profile, light weight, compact size, and could be suitable for polarization diversity applications for reducing the effect of multipath fading.
Citation
Amit Birwal Sanjeev Singh Binod Kumar Kanaujia Sachin Kumar , "CPW-Fed Ultra-Wideband Dual-Sense Circularly Polarized Slot Antenna," Progress In Electromagnetics Research C, Vol. 94, 219-231, 2019.
doi:10.2528/PIERC19052005
http://www.jpier.org/PIERC/pier.php?paper=19052005
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