GTEM 500F – GTEM550F

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 absorber to achieve a 50 Ohm broadband match. It is applied for the measure of Radiation emissions and radiofrequency field-immunity test. The GTEMCELL GTEM 500 family consists of the: GTEM-500 F is made with Ferrite tiles on the bottom and 45cm Hybrid pyramidal carbon-foam absorbers (RAM). GTEM-550 F is made with Ferrite tiles on the bottom and 35cm Hybrid pyramidal carbon-foam absorbers (RAM). GTEM-550 VF is the vertical model (suffix V) made with Ferrite tiles on the bottom and 35cm Hybrid pyramidal carbon-foam absorbers (RAM).

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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.

The GTEMCELL GTEM250 AF-V is a vertical stand-alone solution for space-saving in the test lab area with a maximized EUT test volume. The GTEM 250AF-V is the ideal TEST CELL FOR ELECTROACOUSTICS -HEARING AIDS according to IEC 60118-13 and others. Many options are available including the XYZ manipulator.

GTEM550 F – GTEM550 VF Main Technical Specifications / Max EUT Size
Frequency range0,01 MHz – 20GHz*
Septum Height [mm]:550
Max EUT Size (LxWxH)cm41x41x30
Defined test Vol. within 6dB18x18x18
Typical VSWR1:1,2
Typical VSWR at the critical frequency<1:1,6
Max Input power, W continuous/*pulsed500/*2,5KW
Input connector7/16″ and the adaptor to N
Nominal impedance50 Ohm
Window in the doorDiam. 200 mm.
 Shielding effectiveness from 40 to 65dB

 
Mechanical Dimensions
Outer LxWxH [cm]:.270×136xH88 + 70cm. Trolley
Door WxH [cm]:40×40
Weight Kg. Approx250
Wheeled undercarriage70cm high

 
Electrical Specifications
Mains connectorsFix/CEE
Main Switch16A magneto-thermal
Input Socket plug16Aac (Single phase + ground) IEC
Output Socket EUT tape16Aac (Single phase + ground) Schuko
Additional EUT socketsOptional
Ground connectionM6 bolt
AC filter wires (Single PH+Ground)16Amp. 2 wires
Channel for fiber optic leads3 couples
RF feed-thru connectorN.1  N-type double female
RF feed-thru SMA type connectorsN.2  SMA type double female
Secondary filterN.1 10A 250V

 
Electrical Equipment / Options
AC filter 16A-32A/2 wire (2PH+Ground) 
AC filter 16A-36A/4 wires (3PH+N+Ground) 
Electrical safety interlock 
Indoor lighting 20W LED 
9-poles signal filter (DB9) 
25-poles signal filter (DB25) 
Channel for fiber optic leads (3 or 6 couples) 
Additional RF feed-thru N-type connector 
Additional RF feed-thru SMA type connector 
RJ45 (RJ11) feed-thru connector 
Technical panel pre-drilled for options 
Video camera system

 
Mechanical Equipment / Options
Gas / Water feedthrough plates 
Honeycomb panel 
Fans N.1 12x12cm 
Empty Technical panel 
Wheeled undercarriage