Thirdly, a planar TEM horn is simulated by this 3D EM software and was modified to meet the requirements of VSWR and pattern in band of 100-1000MHz according the simulated result.

• 对一种已有平面TEM喇叭天线进行了3D电磁仿真，根据仿真结果对天线作了一些结构上的改进，使驻波及方向图满足100-1000MHz工作频率的要求。