A proposal for new method to evaluate radiated emission test sites above 1 GHz

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 using a conical dipole antenna. The coherence and the continuity of site evaluation method from below 1 GHz are maintained. [1][2][3] In this paper, we propose a new method to evaluate radiated emission test sites above 1 GHz as free-space by means of wave propagation measurements using a conical dipole antenna.