Electromagnetic compatibility (EMC) antenna gain and factor

A method for calculating and measuring antenna gain and factor over perfect ground is presented. The EMC antenna factor is used to determine the spurious electric field of device under evaluation. The radio link employed to calibrate the receiving antenna gain and factor will produce completely different values for the transmitting and receiving antennas, and the principle of reciprocity does not hold true, in this particular case, even if both antennas are identical.