仿真微波諧振腔的S參量用CST2006，出現(xiàn)警告

At least 1 propagating mode at port 2 is not considered in calculation！
1 mode shares the same beta with considered mode(s) -> degeneration
It might be better to increase the number of modes at port 2

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*** Warning ***

At least 1 propagating mode at port 1 is not considered in calculation！
1 mode shares the same beta with considered mode(s) -> degeneration
It might be better to increase the number of modes at port 1


下面是我設(shè)置的波導(dǎo)端口的參數(shù)
  Port   Mode   Type        Z-Wave        Z-Wave-Sigma  Z-Line        F-Cutoff
  1      1      TE          147           3.74e-014     ---           4.78
  ----------------------------------------------------------------------------

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Port: 2

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  ----------------------------------------------------------------------------
  Port   Mode   Type        Z-Wave        Z-Wave-Sigma  Z-Line        F-Cutoff
  2      1      TE          147           3.74e-014     ---           4.78