The GTEM cell is, in principle, a tapered coaxial line (offset septum plate), which is terminated by a hybrid combination of discrete resistors and RF absorbers to achieve a 50 Ohm broadband match. It is applied for the Measuring of Emission, Radiated, radio frequency field-immunity test.
The family GTEM 450 – 550F is made with the same external case and each model differs in the kind and size of absorbers installed.
It is an indispensable tool for researchers and developers engineers!
Model GTEMCELL GTEM 450 with 50cm truncated pyramidal carbon foam absorbers (white color) offers a wide. operating bandwidth with a flat response starting from DC to microwave frequencies. It is made in the horizontal and VERTICAL GTEM 450 V models.
Model GTEMCELL GTEM 550 F is lined on the bottom with 6,2mm Ferrite tiles and 30cm hybrid carbon foam absorbers offer a wider operating bandwidth with smoothed peaks and flat response starting from DC to microwave frequencies. It is made in the horizontal and VERTICAL GTEM 550 F/V models.
The option /SAE includes a special opening to test integrated circuits, dimensions: 80 mm x 80 mm (or 100x100mm) on Approx. 45 mm septum height, closed from a removable panel where are placed the IC under testing.
The standards SAE J1752/3 and IEC 61967-2 define a method for measuring electromagnetic radiation from an integrated circuit (IC). The IC itself is mounted on a test board on a panel that is clamped in the upper face close to the top of the GTEM cell. The test board becomes a part of the cell wall. A receiver or spectrum analyzer measures the RF emissions emanating from the integrated circuit and impressed onto the septum of the cell. The standard IEC 62132-2 defines the immunity test set-up on integrated circuits tested with a GTEM.
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