GTEM cell - 100 kHz to 20 GHz, 250 W: GTEM EMC 250-INOX | EMC TEST

The GTEM EMC 250-INOX is a compact GTEM cell for electromagnetic compatibility measurements over a frequency range from 100 kHz to 20 GHz. As a Giga-hertz Transversal Electro-Magnetic cell, it enables measurements in a defined TEM waveguide structure and is suitable for radiated emission and immunity measurements.

With a maximum input power of 250 W, a nominal impedance of 50 Ω and a typical VSWR of 1:1.2, the GTEM EMC 250-INOX is designed for compact EMC, EMI and EMS test setups in laboratory, R&D and precompliance environments.

Advantages

• Broadband operation up to 20 GHz for EMC, EMI and EMS measurements.
• Compact GTEM architecture for laboratory and R&D environments with limited space.
• INOX construction for a rugged mechanical design.
• Optimized for EMI and EMC with high effective shielding.
• Strong fields with low input power for efficient immunity test setups.
• Fully configurable feed thrus and filters for application-specific I/O, RF and power requirements.
• EMCO supports technical users in selecting and integrating suitable EMC, RF and GTEM test solutions.

Key features

• Frequency range: 100 kHz to 20 GHz.
• Max. power input: 250 W.
• Input connector type: N Female.
• Nominal impedance: 50 Ω.
• Typical VSWR: 1:1.2.
• Power line filter: 2 x 230 V AC/DC, 20 A.
• RF coax feed thrus: 2 x SMA Female and 1 x N Female.
• Other feed thrus: 1 x fiber optical cable.
• Installed options: INOX, PLF-20S, FOPT-1, FT-N, FT-SMA, PDTP.
• Dimensions: 1150(L) x 600(W) x 420(H) mm.
• Septum height: 250 mm.
• Door size: 30(W) x 20(H) cm.
• Uniform area size ±3 dB: 10(L) x 10(W) x 7.5(H) cm.
• EUT max size: 20(L) x 20(W) x 15(H) cm.
• Weight: 25 kg.
• Reference standards: EN 61000-4-3 and EN 61000-4-20.

Typical applications

• EMI and EMS testing of electronic devices and systems.
• Radiation and susceptibility tests in a GTEM test environment.
• Telecommunication applications and testing of communication devices.
• Biomedical and dosimetrical applications.
• Isotropic sensor calibration.
• Receiver sensitivity tests for RF and communication systems.
• Precompliance and development testing with a compact TEM waveguide structure.

Additional information

The GTEM EMC 250-INOX operates as a TEM waveguide with its upper frequency limit extended into the GHz range. The electromagnetic field distribution inside the cell operates in TEM mode, where the electric and magnetic field components are perpendicular to the propagation direction.

The cell is designed for fully configurable feed thrus and filters. Available options include fiber optic leads, filtered RS-232 pass-thrus, RF feed-thrus, shielded RJ45 feed-thrus, power line filters, electrical safety interlock, shielded window and IP camera system.

For the GTEM EMC 250, a vertical positioning option is available: VPOS with plastic table over absorbers and 90° turned door position. This option is intended for GTEM 250 and GTEM 500.

The detailed views show the locking system, technical panels, shielded window, inside view and multipolar filter. The product information also includes a power required versus electric field chart over frequency for 10 V/m, 30 V/m and 50 V/m.