Octagonal shaped circular polarized C-band antenna for small satellite communication

In this paper, a circularly polarized antenna is presented for small satellite communication. The proposed antenna is assimilated with an octagonal shape radiator with rectangular cut-outs on opposite edges. The proposed antenna is fed by a coaxial pin. The antenna shows measured -10dB impedance bandwidth of 610 MHz (7.07-7.68 GHz) with 3dB axial ratio (AR) bandwidth of 260 MHz (7.35-7.61 GHz).