An X-band compact rectangular waveguide TE₁₀-circular waveguide TE₀₁ mode converter

This paper proposed an X-band compact efficient rectangular waveguide TE 10 -circular 01 mode converter and conducted its structure design, theoretical analysis, numerical simulation, experimental research. is composed of a –TE 20 converter. In the design converter, step used to counteract microwave reflection due discontinuity rectangular–circular connection, two choke slots are involved suppress 21 in circular by cutting off axial component surface current on wall, so as improve conversion efficiency. The simulation results show that coefficient less than 5% efficiency about 98.4% at operation frequency 9.3 GHz. bandwidth with transmission greater 98% 200 MHz. back-to-back system demonstrated, measured 98.2%, which consistent result.