作　　者： ; ; ;

机构地区： 华南理工大学电子与信息学院电子与通信工程系

出　　处： 《华南理工大学学报（自然科学版）》 1998年第1期8-13,共6页

摘　　要： 用ＦＤＴＤ法结合离散傅里叶变换在两维空间求解对称和非对称ＴＥＭｃｅｌ的截止频率。为模拟任意尺寸的内部导电板，采用了亚网格技术，计算了各种尺寸的对称和非对称ＴＥＭｃｅｌ的高阶模截止频率，讨论了ＴＥＭｃｅｌ截止频率与其尺寸的关系，对ＴＥＭｃｅｌ的设计具有指导意义。所得结果与已有文献的结果相吻合。 This paper deals with the solving of cutoff frequencies of various symmetric and asymmetric TEM cells by FDTD method coupled with the discrete Fourier transform in a two_dimension space. To simulate the arbitrarily_sized septum, the contour path method has been used and the higher order mode cutoff frequencies of various_sized symmetric and asymmetric TEM cells have been calculated. The relationship between the cutoff frequencies and the size of TEM cells is discussed too. The results agree well with the ot...

关 键 词： 时域有限差分法 截止频率

领　　域： [电子电信]