L Slot Circularly Polarized Broadband Antenna
A single-fed circularly polarized (CP) patch antenna is designed and built using L-slot loaded patch technique. The antenna is designed on a high dielectric constant (є r = 10.02) 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 60mm X 60mm and the thickness of the substrate is 9.12mm. Bandwidth is enhanced to 18.42% and Axial Ratio Bandwidth by 4% by this design. The other Parameters of antenna like return loss and radiation pattern are also analyzed using HFSS software.