矩形双脊波导的脊变形对主模截止波长影响的分析

Analysis the Cutoff wavelength of the deformation of rectangular Double-ridge waveguide

双脊波导中脊的变形对脊波导的截止波长影响很复杂,本文采用对亥姆霍兹方程有限元方法进行分析,并对接近于矩形脊波导的梯形和椭圆形脊波导的主模截止波长进行计算,分析变化趋势,以为变形脊波导的研究提供一定参考数值。

The effect of cutoff wavelength is complex because the ridge of rectangular double-ridge waveguide deformity. Helmholtz equation finite element method is analyzed and applied to it. Analyses the cutoff wavelength of ladder-shaped and oval-shaped can reflect affection of the deformation of rectangular double-ridge waveguide. Exact transfer cutoff wavelength data are calculated to research deformation of rectangular double-ridge waveguide.