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Numerical calculation of non-TEM-wave field patterns in Crawford-cells*

Published online by Cambridge University Press:  15 June 2001

H.-P. Geromiller
Affiliation:
Brandenburg Technical University, Postfach 101344, 03013 Cottbus, Germany
A. Kost*
Affiliation:
Brandenburg Technical University, Postfach 101344, 03013 Cottbus, Germany
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Abstract

Crawford-cells are widespread for carrying out EMC-susceptibility tests. Electric devices are brought inside the test-volume to be illuminated by a TEM-wave in order to find out whether the equipment under test is working properly even under strong environmental conditions. As the Crawford-cell is a resonant cavity, particular consideration on excitation of undesired non-TEM-waves needs to be taken in order to get reasonable test results. In this paper typical magnetic and electric field patterns are calculated and outlined for unwanted waves.

Keywords

Type
Research Article
Copyright
© EDP Sciences, 2001

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Footnotes

*

This paper has been presented at NUMELEC 2000.

References

H. Singer, H.D. Brüns, J. Mader, Freiberg, Bürger, CONCEPT II, Manual, University of Hamburg-Harburg, Germany.
R.F. Harrington, The method of moments (CRC-Press, 1968).
H.-P. Geromiller, A. Kost, Das Berechnen des elektrischen Feldes in einer TEM-Zelle als Alternative zum Messen, Elektronikpraxis 1998/21, S. 210-216, Vogel-Verlag, Germany.