Development, simulation and construction of cost-effective GTEM cells

Author

Stander, T. ; Sinha, S.

Author_Institution

Dept. of Electr., Electron. & Comput. Eng., Univ. of Pretoria, Pretoria, South Africa

fYear

2013

fDate

16-17 April 2013

Firstpage

39

Lastpage

44

Abstract

Gigahertz transverse electromagnetic (GTEM) cells are used extensively in industry for testing the impact of defined E-fields on devices sensitive to electromagnetic interference. Compared to anechoic chambers, GTEM cells are small, inexpensive and require less powerful amplifiers to achieve the same field strength. This paper presents the design, simulation and qualification of a compact GTEM cell capable of generating field strengths in excess of 600 V/m over a 20 × 20 × 15 cm test cavity, whilst being less than 2.2 × 1.3 × 1 m in total size. Specific hybrid FEM-MLFMM simulation strategies are provided to examine high power device characteristics prior to manufacturing, including accurate modelling of absorber materials. Practical notes on manufacturing and qualification are also presented.

Keywords

TEM cells; amplifiers; anechoic chambers (electromagnetic); electromagnetic interference; finite element analysis; E-fields; absorber material modelling; anechoic chambers; cost-effective GTEM cell development; cost-effective GTEM cells construction; cost-effective GTEM cells simulation; field strength; gigahertz transverse electromagnetic cells; high power device characteristics; hybrid FEM-MLFMM simulation strategies; Computational modeling; Finite element analysis; Materials; Reflection; Resistors; Solid modeling; TEM cells; Computational electromagnetics; Electromagnetic compatibility and interference; TEM cells; Test equipment;

fLanguage

English

Publisher

ieee

Conference_Titel

Radioelektronika (RADIOELEKTRONIKA), 2013 23rd International Conference

Conference_Location

Pardubice

Print_ISBN

978-1-4673-5516-2

Type

conf

DOI

10.1109/RadioElek.2013.6530886

Filename

6530886