应用边界元法计算TEM小室中高次模的截止频率
COMPUTATION OF HIGHER-ORDER MODE CUT-OFF FREQUENCIES IN TEM CELLS USING BOUNDARY-ELEMENT METHOD
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摘要: 本文提出了应用边界元法求解TEM小室中高次模截止频率的方法,求出了多个TE和TM模式的截止频率值。对于一对称小室,由于利用了电壁和磁壁,所以仅研究横截面的四分之一部分就可以得到满意的结果,并且很容易判断其模式。文中列出了一些计算结果并与其它方法的数据进行了比较。
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关键词:
- TEM小室; 边界元法; 高次模截止频率
Abstract: The boundary-element method is proposed to investigate the higher-order mode cut-off frequencies in TEM cells. Both TE and TM modes are considered. For symmetry, only one quarter of the cross-section is analyzed, and electric aad magnetic walls are employed in the cross-section. With this method, mode identification can easily be made by using an eigenvector solution. The obtained results are compared with data available in literatures. -
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