Title :
Sources of problems in the GTEM field structure and recommended solutions
Author :
Hansen, Diethard ; Ristau, Detlef ; Radasky, William A. ; Smith, Kenneth S.
Author_Institution :
EURO EMC SERVICE Dr. Hansen GmbH, Germany
Abstract :
The Gigahertz TEM (GTEM) cell is a special TEM device that is used for both emission and immunity testing up to 1 GHz and above. Based on previous comments and recommendations in IEEE EMC sessions and including suggestions from several members of international standardization groups a very practical as well as challenging experiment was conducted. The E-field structure of a GTEM 1750 has been further investigated in a number of relevant points within the test volume up to one Gigahertz. An empty cell as well as a loaded cell have been tested. The box under investigation was a metal cube of 30 cm. Additional support was gained from computer simulations, leading to more detailed field contour plots. Based on this work a number of improvements and retrofits for existing GTEM cells is given
Keywords :
UHF measurement; electric field measurement; electromagnetic compatibility; electromagnetic interference; test equipment; 1 GHz; 30 cm; E-field structure; EMC; EUT interaction; GTEM 1750; GTEM field structure; Gigahertz TEM cell; UHF; computer simulations; empty cell; experiment; field contour plots; international standardization; loaded cell; metal cube; test volume; Frequency; Length measurement; Position measurement; Probes; Resonance; Testing;
Conference_Titel :
Electromagnetic Compatibility, 1996. Symposium Record. IEEE 1996 International Symposium on
Conference_Location :
Santa Clara, CA
Print_ISBN :
0-7803-3207-5
DOI :
10.1109/ISEMC.1996.561199
