Title :
A new dual-coaxial-TEM cell
Author :
Wolfsperger, Hans A. ; Strehlow, Heiko ; Schwab, Adolf J.
Author_Institution :
Inst. for Electr. Energy Syst. & High Voltage Technol., Karlsruhe Univ., Germany
Abstract :
Previously, different configurations of TEM cells, chambers and transmission-line holders were used to determine the intrinsic shielding effectiveness (SE) of materials e.g. conductive plastics. In this contribution, a new dual-coaxial-TEM Cell is presented which allows to measure the SE of materials, determine the influence of apertures and test analytical and numerical computation methods. The mechanical and electrical structure is described and the calculation of the electromagnetic coupling is verified by the results of measurements. In addition to the worst-case examination of structures (the electric field is perpendicular to the surface of the test-sample), the dual-coaxial-TEM Cell provides a wide frequency range and high dynamic
Keywords :
electromagnetic compatibility; electromagnetic interference; electromagnetic shielding; EMC measurements; EMI; conductive plastics; dual-coaxial-TEM cell; electrical structure; electromagnetic coupling; frequency range; high dynamic; mechanical structure; shielding effectiveness; transmission-line holders; Apertures; Conducting materials; Electric variables measurement; Electromagnetic coupling; Electromagnetic measurements; Materials testing; Mechanical variables measurement; Plastics; TEM cells; Transmission lines;
Conference_Titel :
Electromagnetic Compatibility, 1999 International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
4-9980748-4-9
DOI :
10.1109/ELMAGC.1999.801381
