A method to evaluate radiated emission test sites above 1 GHz using propagation loss of different polarization

Site VSWR to evaluate radiated emission test sites above 1 GHz is defined by CISPR 16-1-4. However, the Site VSWR has been specified without theoretical basis and its limit was also changed several times without reasonable grounds. We confirmed that site attenuation is suitable for evaluation of radiated emission test sites above 1 GHz and we devised a method to evaluate radiated emission test sites above 1 GHz as free-space by means of wave propagation measurements using a conical dipole antenna that was developed the idea of site attenuation measurement. We confirmed the advantage and practical usefulness of the method using propagation loss of different polarization to use evaluation for radiated emission test sites above 1 GHz.