摘要
同轴—波导转换器是微波系统中非常重要的元器件。基于脊波导和波导阶梯对导播系统中电磁波传播性能的影响,本文探讨了这两种结构应用在8-18GHz的宽带同轴—波导转换器设计中的情况。通过同轴—脊波导—矩形波导转换,并在脊波导上加载阶梯,很好地改善了阻抗匹配效果,提高了同轴—波导转换器的传输性能。仿真结果证明脊波导和波导阶梯在设计同轴—波导转换器中的有效性,在8-18GHz的倍频程带宽内驻波小于1.22,产生的高次模非常小。
Coaxial-waveguide transition plays an important role in microwave system.Based on the influence of ridge waveguide and waveguide ladder exerted on transmission performance of electromagnetic wave in guided wave system, this paper discussed the situations of these two structures applied in the 8-18 GHz broadband coaxial-waveguide converter designation. Through the conversion of coaxial - ridge waveguide - rectangular waveguide, and ladder loading of ridge waveguide, the effectiveness of impedance matching is...
出处
《微波学报》
CSCD
北大核心
2008年第S1期125-128,共4页
Journal of Microwaves
关键词
同轴—波导转换
脊波导
波导阶梯阻抗变换
Coaxial-waveguide transition
Ridge waveguide
Waveguide ladder impedance transformation
