A Comparative Analysis of a Single Feed Circularly Polarized Micro-strip Patch Antenna with U-Slot & L-Slot
DOI:
https://doi.org/10.37628/jbcc.v1i1.48Abstract
This paper compares the different parameters for a single feed circularly polarized Micro-strip patch antenna with U-slot and L-slot. The proposed antenna 1 contains a U-Slot and designed with DGS technique to reduce the size of antenna and proposed antenna 2 contains a L-slot and designed with DGS technique to reduce the size of antenna. The antenna with L-slot is designed on a high dielectric constant (εr = 10.2) substrate which achieves a reasonable bandwidth and axial ratio bandwidth with respect to a U slot antenna. At the operating frequency of 1.575 GHz with the size of the patch is 25mm X 25mm, while ground plane of 50mm X 50mm and the thickness of the substrate is 10.2 mm. Bandwidth is enhanced to 19.99% and Axial Ratio Bandwidth by 3.5% by using L-slot as compared to U-slot. The parameters of antenna like return loss, axial ratio, RHCP and LHCP, gain are analyzed using CST MSW Software. Keywords-Circularly Polarized (CP), Defected Ground Structure (DGS), L-Slot, Patch Antenna, U-Slot.References
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