A Fast Algorithm of Time Domain Integral Equation in Resolving Antenna Mutual Coupling on Electrically Large Platform
一种求解电大平台天线互耦的时域积分方程快速算法

Considering the antenna mutual coupling problems on electrically large platforms, a fast algorithm of Time Domain Integral Equation (TDIE) based on the Geometry Theory of Diffraction (GTD) is proposed. On the basis of classical Marching-On in Time (MOT) solver, diffraction ray tracing method in GTD is introduced, and the calculation efficiency of retarded-time integral is raised. Numerical results prove that the proposed method can accelerate the process of MOT, and has the theoretical advising meaning towards the optimization design of antenna’s layout on electrically large platforms.