Select the box with the geometry, symmetric or asymmetric, that you would like to calculate.

In all cases, equations used to make these calculations can be found in the paper of Wilson and Ma, "Simple approximation expressions for higher order mode cutoff and resonant frequencies in TEM cells", IEEE Trans. Electromagn. Compat., vol. EMC-28, no. 3, pp. 125--130, Aug. 1986.

Symmetric TEM cell

Asymmetric TEM cell

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