Experimental comparison of the various validation method using broadband antenna for radiated emission test site

Experimental comparison of the various validation methods (CISPR16-1, ANSI C63.5 revision and Dual AF method) using the broadband antenna of biconical, log periodic and full-range type was performed at seven radiated emission test sites. With regard to each method, it was compared with the NSA value including the correction factor, which is measured by a pair of dipole antennas. As the result, it was concluded that, even when the broadband antenna is used, the NSA calculation up to 300 MHz should consider the influence of mutual impedance coupling of antennas and of the ground plane in the same manner with using a pair of dipole antennas.