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Uncertainty Analysis on the Reconstruction of the Radiated Field in a Multiple Monopole Source Stirred Reverberation Chamber

In this paper a statistical analysis on the measurement uncertainties related to the radiated emissions of an Equipment Under Test (EUT) is reported. The measurement environment is a Reverberation Chamber (RC), where the EUT is placed inside its working volume and the electric field is sampled close to the RC's metallic walls. From these measurements the free space emission of the EUT is reconstructed. The RC is equipped for the Multiple Monopole Source Stirring (MMSS) technique, which requires an array of monopole antennas placed onto the walls; therefore, in the present paper, the same antennas are used to sample the orthogonal component of the electric field radiated by the EUT. Two uncertainties mechanisms are analyzed: the position of the monopoles onto the walls and the direction of the monopole, that in the ideal scenario are perfectly orthogonal to the walls, but in a more realistic scenario, they could be oriented slightly in a different way.