Design of TE01 to HE11 Mode Converter at 35GHz

Mode conversion is hugely vital for the transmission and measurement of high power microwaves. In this paper, the $TM_{11}-HE_{11}$ high-efficiency high-power mode converter with TM
11
as the intermediate mode is designed by numerical simulation, and the operating frequency is 35GHz. In the calculation process, in order to solve the problem of the ohmic losses caused by the metal wall, we used the rematch phase technique to improve the conversion efficiency. We then used the Commercial Microwave Studio software for modeling analysis. Finally, experimental tests were performed on the processed $TE_{01}-TM_{11}$ and $TM_{11}-HE_{11}$ mode converters. Experimental results verify the accuracy of numerical simulation.