COMPUTATION OF HIGHER-ORDER MODE CUT-OFF FREQUENCIES IN TEM CELLS USING BOUNDARY-ELEMENT METHOD
应用边界元法计算TEM小室中高次模的截止频率

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.