Abstract：Bandwidth property of mode conversion from the TE□10 mode of a rectangular waveguide to the TE⊙01 mode of a coaxial waveguide is studied. The influence of mode competition on operating mode inside the bandwidth is analyzed and the effect of mode filter on mode conversion property is discussed. The simulation results with Ansoft HFSS show that the influence of mode competition can be weakened with a mode filter, and the operating bandwidth of 700MHz can be reached while the mode conversion efficiency is more than 70% at Ku band for the new structure.
2007, Vol. 29 
