C-band Dual-polarized Hat-fed Reflector Antenna

A C-band dual linear polarized feed for a self-supported reflector antenna is presented for the frequency range of 5.2-4.2 GHz. The main parabolic reflector of the antenna has an FlD of 0.37. The design objectives are to maximize the antenna efficiency over the 1 GHz bandwidth while maintaining a simple design of the feed. The measured radiation patterns in two principal planes, gain, and cross polarization versus frequency of the reflector antenna are presented.