Design and Simulation of a RGW-Based Microwave (15-18 GHz) Power Divider/Combiner and Its Application to High Power SSPA

In this paper, a 1:8 Ku-band(15-18 GHz) power divider/combiner based on Ridge Gap Waveguide(RGW) technology is designed and simulated which can be extended to arbitrary 1:N power divider/combiners. In the proposed structure a piece of metal and T-junctions with multisection impedance matching are used. Return loss of the simulated power divider is better than -10 dB at 15-18 GHz frequency band. Also the insertion loss from input to each output is almost -9dB which was expected. Also difference between phases of the insertion loss from input port to each output port is less than 0.9 degree..