Test Cells (TEM)

The GTEMCELL GTEM-2000 is a TEM waveguide with the upper-frequency limit extended to the GHz range. It is under consideration as an alternative measurement facility for both radiated emission and immunity measurements. It is included in the standard IEC 61000-4-20 “Emission and Immunity Testing in Transverse Electromagnetic (TEM) Waveguides”. Compared to other measuring methods like EMC test in anechoic chambers or OATS (Open Area Test Sites), GTEM-cells offer some significant advantages for the testing of small and medium-sized EUT´s (Equipment Under Test) up to a frequency range of 20 GHz. Quick turn arounds of the EUT, as well as, numerous testing variations are easy and fast to handle. Switching from emission to immunity testing requires only simple adjustments from receiver input to the amplifier output.

The GTEMCELL GTEM-2500 is a TEM waveguide with the upper-frequency limit extended to the GHz range. It is under consideration as an alternative measurement facility for both radiated emission and immunity measurements. It is included in the standard IEC 61000-4-20 “Emission and Immunity Testing in Transverse Electromagnetic (TEM) Waveguides”. Compared to other measuring methods like EMC test in anechoic chambers or OATS (Open Area Test Sites), GTEM-cells offer some significant advantages for the testing of small and medium-sized EUT´s (Equipment Under Test) up to a frequency range of 20 GHz. Quick turn arounds of the EUT, as well as, numerous testing variations are easy and fast to handle. Switching from emission to immunity testing requires only simple adjustments from receiver input to the amplifier output.

Transverse ElectroMagnetic (TEM) cell or Crawford cell (named after its inventor) is used to generate accurate electromagnetic waves over a wide frequency range: DC (0 Hz) to GHz. EM waves generated in the cell propagate in transverse mode and have the same characteristics as a plane wave. It can be used to calibrate E-field broadband probes for testing radiated E-field immunity as well as for measuring radiated emission from a product with a spectrum analyzer/EMI receiver.

Double Transverse ElectroMagnetic (DTEM) cell or Double Crawford cell (named after its inventor) is used to generate accurate electromagnetic waves over a wide frequency range: DC (0 Hz) to 6 GHz and measure attenuation through materials in a very predictable and accurate way. EM waves generated in the cell propagate in transverse mode and have the same characteristics as a plane wave. It can be used to calibrate E-field broadband probes for testing radiated E-field immunity as well as for measuring radiated emission from a product with a spectrum analyzer/EMI receiver.