Circularly Polarized Triangular-shaped Antenna and modified Inclined-shaped defected ground for Fixed Satellite Communication Applications

Abstract

A circularly polarized compact antenna with resonant frequency at 6.2 GHz is proposed for fixed Satellite communication applications. The impedance bandwidth (IBW) of extends from 6.03 GHz to 6.49 GHz. An elliptical structure is etched from the radiator and the ground is inclined along with a circular stub to perturb the current for circular polarization (CP) with the axial ratio extending from 6.03 GHz to 6.29 GHz, and covers 56.52% of the band.