A Multi-Megawatt Range, Dual-Band Waveguide Antenna System

This paper presents a compact, dual-band high-power antenna system, operating in L-band at 1.3GHz -2.5 MW and S-band 3GHz - 5.0 MW. The design consists of a wide band corrugated horn antenna and a dual-band waveguide combiner. Numerical simulations of the S-parameters of the combiner and the radiation pattern of the antenna are presented. The radiator demonstrates good performance in terms of Return Loss, isolation, and radiation at both frequencies of operation. The resulting system is compact and can be manufactured by standard CNC techniques or metallic 3D printing.