Design and simulation of an ultra-wideband parabolic antenna with three-source based on time reversal method

A novel application of the time reversal technique for multi-source reflector antenna design is proposed in this paper. The focus of a shaped reflector and the time sequence of its feeds can be determined by time reversal method, exploiting its spatial-temporal focusing property. Then a designed three-source parabolic antenna was simulated by the FDTD. The radiation properties show that the designed antenna can lead higher peak value of electric field which is 238% compared to a standard parabolic antenna with one-source and same aperture. It means time reversal method for designing multi-source antenna is effective, and can realize the spatial power combination in the far field.