在大问题空间中计算电磁耦合的一种混合法

应用时域有限差分（ＦＤＴＤ）法计算大问题空间的电磁耦合和传输，建立了一种ＦＤＴＤ和拓扑网络相结合的方法混合法给出了各网络节点端口处波矢关系的总方程每个节点特性可用ＦＤＴＤ法求出以波导中多膜片结构作为数值算例，验证了方法的正确性混合法与传统ＦＤＴＤ法相比有节省时间、节省计算机内存、建模灵活等优点

A Hybrid Method for Electromagnetic Coupling in Large Spaces

A hybrid method combining finite difference time domain(FDTD)with topology network was presented to treat with electromagnetic couplings and transmissions in large spaces A generalized matrix euqation expressing the relations among wave vectors at every port of the network nodes was give Scattering characteristics and electromagnetic distributions of every node was calculated independently using FDTD A structure of irises in a waveguide was taken as numerical examples This hybrid method has more advantages than the traditional FDTD method which includes saving calculation time,saving memory spaces and being flexible in setting up FDTD grids