Title :
Analysis of the measured field structure in a GTEM 1750
Author :
Hansen, Diethard ; Ristau, Detlef ; Spaeth, Thomas ; Radasky, William A. ; Smith, Kenneth S. ; Gilbert, James L.
Author_Institution :
Euro EMC Service, Teltow, Germany
Abstract :
An experimental field mapping (x, y, z components) of a GTEM 1750 has been performed in important parts and locations of this asymmetrical waveguide. The measurement results of deviations from the perfect TEM wave reveal some non TEM components as a function of exciting frequency and measurement location. A review of the present state of theoretical and experimental research with respect to immunity is given. An attempt is made to simulate a generic GTEM 500 section by using a 3-D finite difference time domain code. A comparison with measured data is presented, including the analysis of fundamental problems in the presently used standardized field sensor instrumentation
Keywords :
electromagnetic compatibility; electromagnetic fields; field plotting; finite difference time-domain analysis; finite element analysis; rectangular waveguides; 3-D finite difference time domain code; EMC; GHz TEM cell; GTEM 1750; asymmetrical waveguide; exciting frequency; experimental field mapping; field structure; generic GTEM 500 section; immunity; measurement location; perfect TEM wave; review; standardized field sensor instrumentation; Electromagnetic compatibility; Finite difference methods; Frequency domain analysis; Immunity testing; Instruments; Licenses; Project management; Resistors; TEM cells; Waveguide components;
Conference_Titel :
Electromagnetic Compatibility, 1994. Symposium Record. Compatibility in the Loop., IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1398-4
DOI :
10.1109/ISEMC.1994.385667
