摘要
Abstract
In this paper,the design process of W-band circular TE01 mode transducer composed of a TE□10→TE□20 mode converter and a TE□20→TE01 mode converter is given. The TE□10→TE□20 conversion is realized by vertical excitation which makes signals cross the electric fields of standard waveguide and overmoded waveguide. The TE□20→TE01 transformation is im-plemented by introducing a special waveguide structure according to the field distribution features of rectangular TE20 mode and cir-cular waveguide TE01 mode. The simulation results obtained from the HFSS show that the conversion efficiency can reach 4.8 GHz at the bandwidth beyond 97%,in which the maximum conversion efficiency of the exciter is 98.68% at 93.7 GHz with purity of 98.94%. The transducer has high conversion efficiency,simple structure,and easy to fabricate. The design of this mode trans-ducer can be applied to the low-power test for the high-power microwave devices.关键词
模式转换器/W波段/S参数/圆波导TE01模式Key words
mode converter/W-band/S-parameter/circular TE01 mode分类
信息技术与安全科学
