Title :
Higher order mode behavior in loaded and unloaded TEM cells
Author :
Groh, Ch. ; Garbe, H. ; Koch, M.
Author_Institution :
Hannover Univ., Germany
Abstract :
The resonances of higher order modes determine the usable bandwidth of a TEM cell. Since the resonating mode and its characteristic field distribution are known, measures are taken to selectively suppress resonances of higher order modes. Thus the bandwidth of the cell is expanded without affecting the TEM mode. Loading the cell with objects results in abrupt changes of the cross sectional geometry. The effects on the resonances due to the size and position of the objects are examined
Keywords :
electromagnetic fields; resonance; test equipment; waveguide theory; GTEM cell; bandwidth expansion; characteristic field distribution; cross sectional geometry; higher order mode behavior; inhomogeneous waveguides; loaded TEM cells; object position; object size; resonance suppression; resonating mode; transverse fields; unloaded TEM cells; usable bandwidth; Bandwidth; Differential equations; Geometry; Maxwell equations; Reflection; Resonance; Resonant frequency; Schrodinger equation; TEM cells; Testing;
Conference_Titel :
Electromagnetic Compatibility, 1999 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5057-X
DOI :
10.1109/ISEMC.1999.812899
