利用坐标变换理论,推导出椭圆形和梯形变换空间的电磁参数分布,设计出组合型目标的电磁超材料隐身斗篷.在频率为400MHz的平面横电波(TE 波)垂直入射的条件下,对该斗篷的隐身性能进行数值仿真分析.结果表明,在隐身斗篷的作用下,目标模型内部几乎没有电磁波进入,斗篷以外的电磁场也没有明显的变化,这些现象与理论预测的结果基本一致,体现了所设计的斗篷良好的隐身性能,由此验证了根据坐标变换设计的超材料,在理论上具有控制电磁波传播路径并且不改变外界波场的特性.
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