非均匀网格FDTD分析波导宽边辐射缝隙特性

Analysis of the broadwall radiating slot in a finite-thickness-wall waveguide with non-uniform FDTD

波导宽边辐射缝隙被广泛应用于波导缝隙阵列中,为了比较准确地对波导缝隙进行建模,同时考虑到计算资源限制,本文引入一种采用非均匀网格的时域有限差分方法对其S参数特性进行了计算。数值结果表明该方法分析波导辐射缝隙特性问题的有效性。

The broadwall radiating slots are widely applied to waveguide slot array. In order to simulate the slot accurately and take the limitation of computation resources into account, the authors employ a kind of non-uniform FDTD algorithm in analyzing the S parameters. The numerical results show the effectiveness of this algorithm for waveguide slot problem.