Analysis of high-power millimeter wave circular waveguide TM01—TE11 mode converter

According to the numerical study of the mode converters in smooth bent, circular waveguides on highpower millimeter waves TM01—TE11, the geometrical dimensions of the bent waveguides are optimized in this paper. On the basis of mode conversion theory, this paper further optimized a better dimension and obtained the regulation about the radius of the circular waveguides, curvature and frequency of bent circular wave guides and the bandwidth. The mode converter designed in this way owns high conversion efficiencies of 99% with its bandwidth exceeding 29.8%.