论文部分内容阅读
本文利用平板波导模型法与轮廓积分方程法结合分析了一种重要的多波束形成网络—Rotman透镜．首先建立了考虑色散效应的透镜的等效平板波导模型，然后选择适当的波导模式函数展开透镜端口上的场，并利用Galerkin法求解其边缘上电场满足的轮廓积分方程即可得到透镜的多模式散射参数．再根据网络思想，将端口存在的高阶模作为加载。从而得到主模激励的散射参数，计算结果与实验结果吻合得很好．
In this paper, an important multi-beam forming network-Rotman lens is analyzed by using the combination of slab waveguide model and contour integral equation. Firstly, the equivalent slab waveguide model considering the dispersion effect is established, and then the proper waveguide mode function is selected to expand the field on the lens port. The Galerkin method is used to solve the contour integral equation that the electric field on the edge satisfies. Scattering parameters. According to the network thought, the port exists as a high-order mode of loading. The scattering parameters of the main mode excitation are obtained. The calculated results are in good agreement with the experimental results.