Low profile co-radiator transmit-receive antenna for Ku-band

Bidirectional high data rate satellite links are needed in emergency conditions where other telecommunication infrastructures are not available. This paper focuses the design of Co-radiator transmit receive antenna suitable for satellite Ku-band emergency communications. The reported antenna consists of two elements in the same patch which is operated from 10.7 GHz to 12.5 GHz for reception and 14 GHz to 14.5 GHz for transmission. Dual polarization is achieved by providing perpendicular feeding structure. The proposed antenna provides 10 dB return loss and maximum gain of 12.5 dBi for the transmit band and 10 dB return loss and maximum gain of 11.5 dBi for the receive band.