A Compact Circular Polarized Antenna For Fixed Communication Applications

Abstract

A compact Circular polarized rectangular patch antenna has been designed for the Fixed Communication applications in the Ku band with an operating frequency of 15GHz. The patch has been truncated at the diagonal corners to get the circular polarization. Rogers RT Duroid 5880 is taken as substrate material which is having a thickness of 0.508mm and a 50Ω coaxial cable has been used to excite the antenna. The overall dimension of the antenna is 13mm×13mm×0.508mm which is 0.65λ×0.65λ making the proposed antenna a compact one. The Proposed antenna is having an impedance bandwidth of 0.85GHz ranging from 14.61GHz to 15.45GHz with a gain of 7.87dB at the operating frequency of 15GHz. The axial ratio of the antenna at the operating frequency is 1.6dB which indicate the circular polarization. Commercially available 3D simulator Ansys HFSS software has been used to design the proposed