Radiated Immunity Test Equipment

Radiated immunity testing involves subjecting the equipment under test (EUT) to strong radiated electromagnetic fields. Real-world electromagnetic disturbance sources come from a wide range of sources, including cell phones and motors to name a few. The EUT must continue to operate normally and cannot show any signs of susceptibility when subjected to these electromagnetic fields. The electromagnetic fields are generated by feeding a calibrated signal into a broadband RF power amplifier. The output of the amplifier is then connected to an antenna which produces the radiated electric field.

Radiated immunity test systems can be set up in a conventional way with many separate instruments or in a more convenient way with a control unit. The control unit consists of a signal generator, directional coupler, RF power meter, and a relay switching unit. RF power amplifiers, antennas, RF field strength meters, RF cables, and control software complete the test equipment setup.

IEC 61000-4-3 Radiated Immunity Test System

GTEM Cells

RF Field Strength Meters

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