Precise calibration of electric field sensors for radiated-susceptibility testing

judgements upon the CE-compliance of products are of great economic importa nce. Therefore, the calibration of field sensors for electromagnetic compat ibility (EMC) susceptibility testing in the frequency range of 80 - 1000 MH z calls for traceability, optimum accuracy and economy. In the Seibersdorf calibration laboratory, this has been achieved by application of a TEM-cell and a set of precision reference dipoles. A broadband reference sensor is calibrated on the basis of these high-precision primary standards with an e xpanded uncertainty (at two standard deviations) of 0.4 dB. Routine calibra tions are performed by an economized, swept-frequency substitution method u sing the reference sensor. The expanded uncertainty is 0.5 dB, providing a reliable basis for industrial EMC measurements.