脊波导漏壁式滤波器的简化算法

脊波导漏壁式滤波器在雷达和微波通信等领域得到广泛的应用。但是脊波导漏壁式滤波器解析计算困难,近似分析误差较大,直接使用商业软件HFSS仿真很耗时。基于传输线理论和波导裂缝有源阻抗提取方法,提出了一种脊波导漏壁式滤波器的简化算法。根据这种简化算法研制了一个脊波导漏壁式滤波器的样件,计算结果与试验结果具有较好的一致性,证明了该方法的有效性。

Simplified Computation Method for Leaky-Wall Ridge Waveguide Filter

Leaky-wall ridge waveguide filter is widely used in radar and microwave communication. But it is difficult to get an analytical solution or accurate approximation solution, and it takes much time to perform simulation by direct use of commercial software HFSS. Based on transmission line theory and extraction method of active impedance of waveguide slot, a simplified computation method for the leaky-wall ridge waveguide filter is presented in this paper. A prototype leaky-wall ridge waveguide filter has been designed by use of this method. There is a good match between the computed and the tested results. By using the method, a leaky-wall ridge waveguide filter can be designed precisely and effectively.