复杂电大平台天线EMC问题的并行FDTD分析

为了对复杂电大平台天线EMC（electronic—magnetic compacity，电磁兼容）问题进行分析，提出基于MPI编程环境的并行FDTD算法．通过区域分割技术将计算区域分成子区域进行计算，实现了计算资源的扩展和计算时间的缩减．天线隔离度的分析中，FDTD作为时域方法，通过傅里叶变换可快速求解，避免了扫频计算的复杂性．数值结果表明，这种方法可以对复杂电大平台天线方向图和隔离度进行准确、快速地计算．

Analysis of EMC of antennas mounted on electrically large platforms with parallel FDTD method

For analysis of EMC of antennas mounted on electrically large platforms, we present a parallel FDTD algorithm based on MPI. The computation space is divided into some subdomains~ Then the computation resource is expanded and time is reduced greatly. The radiation pattern and isolation degree of antennas mounted on electrically large platforms can be analyzed by this method. As a time-domain method, the parallel FDTD algorithm can be used to analyze the isolation degree quickly, avoiding the complexity of computing sweeping frequency. Numerical results show that this technique is exact and efficient.