摘要
V波段圆波导TE01模式激励器由矩形TE10模式到矩形TE20模式变换器和矩形TE20模式到圆波导TE01模式变换器组成。采用H面(磁面)转弯激励的方式实现矩形TE10模式到矩形TE20模式的变换;根据圆波导TE01模式的场分布特性,引入过模波导实现了矩形TE20到圆波导TE01的变换。计算结果表明设计的激励器转换效率在95%以上;模式纯度在98%以上的相对带宽可达4.2 GHz;其中在43.4 GHz处的最大转换效率为99.08%,纯度为99.20%。
In this paper,the V-band circular TE01 mode transducer consisting of a TE10-TE20 mode converter and a TE20-TE01 mode converter is studied.This paper describes a novel TE10-TE20 mode transducer utilizing an H-plane right-angled corner composed of a standard waveguide and an overmoded one.According to the electric field characteristic of the TE01 mode,we achieve TE20 rectangular waveguide mode to a TE01 circular waveguide mode by oval-waveguide.The calculation results obtained from the HFSS show that the transducer maximum conversion efficiency could reach 99.08% at 43.4 GHz with a purity of 99.20%,the bandwidth for conversion efficiency beyond than 9 5 % with mode purity over than 98 % is about 4.2 GHz.The transducer has high conversion efficiency,simple structure,and it is easy to fabricate.a design can be applied to the low-power test for the high-power microwave devices.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2014年第6期114-118,共5页
High Power Laser and Particle Beams
基金
高功率微波技术重点实验室基金项目(2012-LHWJJ001)
