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2015-07-24
Wideband Single-Feed Circularly Polarized Antenna
By
Progress In Electromagnetics Research Letters, Vol. 54, 93-99, 2015
Abstract
In this paper, a novel wideband single-feed circularly polarized patch antenna is presented. The antenna consists of an L-shaped probe, four parasitic patches perpendicular to the probe, and a planar reflector. By modifying the structure of the patches, two orthogonal radiation modes are created to realize the circular polarization in the broadside direction. This antenna exhibits a wide impedance bandwidth of 82.4% from 2 GHz to 4.8 GHz for the voltage standing wave ratio (VSWR) ≤ 2 and a 3-dB axial ratio (AR) bandwidth of 56.2% from 2.11 GHz to 3.77 GHz, over which the antenna gains vary from 5.7 dBic to 9.7 dBic. The measured results agree well with the simulated ones.
Citation
Wei-Long Liang, Yong-Chang Jiao, Li Zhang, and Tao Ni, "Wideband Single-Feed Circularly Polarized Antenna," Progress In Electromagnetics Research Letters, Vol. 54, 93-99, 2015.
doi:10.2528/PIERL15052005
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