【作者】 杜星星； 唐璞； 陈波；

【Author】 DU Xingxing;TANG Pu;CHEN Bo;School of Electronic Engineering,UESTC;

【机构】 电子科技大学电子工程学院；

【摘要】 本文设计了一种工作于7～26.5GHz超宽带双脊波导-同轴转换器,该结构采用模式变换和阻抗匹配的思想,通过切比雪夫型1/4波长阶梯阻抗匹配枝节实现高低阻抗之间的过渡,采用直插式将同轴探针引入波导,并通过在探针正下方加载圆柱和探针与短路面增加过渡阻抗匹配台阶,成功改善接头性能。实测结果表明,该转换接头在7～26.5GHz的频率范围内性能良好,测试结果与仿真结果吻合。更多还原

【Abstract】 This paper presents an ultra-wideband transition from double-ridge waveguide to coaxial line which worked at7～26.5 GHz,The design of the transition is based on the theory of the mode conversion and step-impedance matching.The transition between the high and low impedance is achieved by employing the Chebyshev type of quarter-wavelength step-impedance matching.Using lead-inserted transition for leading the coaxial probe insert the waveguide,and by loading cylinder just below the probe and increasing impedance matching transitions between probe and short plane,a good performance can be got.The test results show that the adapter in the frequency range 7～26.5 GHz has a good performance,the experimental results agree with the simulation results.更多还原