Design of 4–5GHz transition from double-ridge waveguide to coaxial line
Design of 4–5GHz transition from double-ridge waveguide to coaxial line
复制标题
4-5GHz双脊波导到同轴线的过渡设计
DOI：
10.1109/piers.2016.7734901
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Jiurong Huang
中科院分区：
文献类型：
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作者：
Lei Xiao;Bo Chen;Jiurong Huang
本文介绍了一种工作在4- 5GHz的双脊波导到同轴线的过渡。双脊波导的尺寸为WRD 350。过渡段的设计是基于模式转换和阶跃阻抗匹配的理论。高阻抗和低阻抗之间的过渡是通过采用切比雪夫型的四分之一波长阶跃阻抗匹配实现的。用插入式过渡管引导同轴探针插入波导，我们知道脊波导的主模不同于同轴线。如果连接器的内导体直接接触下脊，两个端口的VSWR非常差。而当探头底部为圆柱形，阻抗匹配过渡段增加时，可以得到较好的性能。利用HFSS仿真软件进行仿真，结果表明，在4- 5GHz频率范围内，驻波比小于1.1。测试结果表明，该适配器具有良好的性能。
This paper presents a transition from double-ridge waveguide to coaxial line, working at 4-5 GHz. The size of the double-ridge waveguide is WRD350. The design of the transition is based on the theory of 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, as we know, the dominant mode of the ridge waveguide is different from the coaxial line. If the inner conductor of the connector contacts the down-ridge directly, the VSWR of two ports is very bad. However, when the probe has a cylinder bottom and increasing impedance matching transitions, a good performance can be got. Using simulation software HFSS, the simulation results show that the VSWR in the frequency range 4-5 GHz is less than 1.1. The test results show that the adapter has a good performance.