T-junction high power microwave power combiner

A novel power combiner applied to high power microwave is described and analyzed. It consists of two overmoded rectangular waveguides which are connected vertically, and several metal plates are inserted vertically with the polarization direction of the transmitted modes, respectively. Thus the two modes with different polarization directions, such as TE10 and TE01 rectangular waveguide mode, can be transmitted separately to realize power combining. A power combiner at 9.55 GHz is designed and optimized based on this scheme. The calculated results show that it has high power handling capacity, and the transmission efficiency for each channel is about 98% and 99% at center frequency, respectively. The return loss and coupling loss located at the joint are less than -21 dB, which can be