A Comparative Analysis of A Circularly Polarized Microstrip Patch Antenna with & without U-slot
In this paper, Circularly Polarized (CP) patch antenna at L-band is designed. The antenna contains a U-Slot and designed with DGS (Defected Ground Structure) technique to reduce the size of antenna. U-slot etched in the antenna allowed the fabrication on a high-dielectric-constant (10.2) substrate that achieves a reasonable axial-ratio bandwidth. Circular polarization can be generated on a rectangular patch antenna by truncating two opposite corners of patch. In this paper, a comparison has been done between a CP micro strip antenna with and without U-Slot.