Measuring EMC Antenna Factors In The GHz Transverse Electromagnetic Cell

As ule precision of EMC ueasuremeuts his improved, so has their accuracy. With impmved meawrement acciiracy, one of the major concerns of the EMC Community is the absolute accuracy of the field strength data that is compared to field strength specification limits for determination of equipment under test (EUT} compliance. Majab elements of the field strength value calculations are the anterm factors used in the computation of field strength. There is dependence for these values on traditional antenna calibration methods to adequately measure the antenna factor of EMC antennas. While each of the standard calibration procedures will produce adequate calibration results, any new method that provides separate verification or is a precise, accurate alternative method of measurement provides a new optinn for efficient determination of anteiuui factors. This pqer explores a new measurement methcl for antenna factors, provides comparative data and presents conclusions as to its adequacy.