大的标准TEM小室内谐振频率的计算
THE CACLULATION OF RESONANT FREQUENCIES IN THE LARGE NBS TEM CELL
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摘要: 本文分别用FD-TD(时域有限差分)法和不均匀划分TLM(传输线矩阵)法计算标准TEM小室的谐振频率。在FD-TD法的计算中,提出一种新的磁边界条件的处理方法,节省了计算量,给出了大量未曾发表过的标准TEM小室内谐振频率的计量结果。在不均匀划分TLM方法的计算中,按小室的自然结构不均匀的划分小室内的传播空间,也达到了节省计算量的目的。最后,对这两种方法和计算结果进行了比较。给出了若干结论。Abstract: The resonant frequencies of the NBS TEM cell have been calculated by the Finite-Difference Time-Domain (FD-TD) and irregularly graded Ttansmis-sion-Line Matrix(TLM) methods. In the calculating process by the FD-TD method a novel processing method for the magnetic wall boundary conditions is developed with which it is possible to treat only one eighth of the whole cell domain to calculate the resonant frequencies. As a result, additional useful resonant frequency data are listed. In the TLM meth ,d, the prop...
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