脊波导的功率容量、衰减常数和特性阻抗是其传输特性的重要组成部分。在日常应用中, 脊波导元件必然会存在一定的形变。文章应用ANSYS建模与MATLAB软件相结合的方法计算了三角形脊波导错位和受力形变对其功率容量、衰减常数和特性阻抗的影响。结果表明, 错位形变对三角形脊波导的衰减常数影响较小, 而各项特性参数受底部形变影响较大, 研究所得结果可为三角形脊波导广泛应用提供参考。

The power capacity, attenuation constant and characteristic impedance of ridge waveguides are the major parts of their transmission characteristics. In their daily applications, their components are sure to subject to certain deformations. This paper calculates the impacts of displacement and stress deformation of triangular ridge waveguides on their power capacity, attenuation constants and characteristic impedance by applying ANSYS modeling in combination with MATLAB software. The results indicate that displacement deformation brings about relative minor effect on the attenuation constant, while bottom deformation produces relatively major effects on various characteristic parameters. These study results can provide some reference for the extensive applications of triangular ridge waveguides.