Source stirring technique for reverberation chambers; experimental investigation

Abstract

This paper discusses the source-stirring technique from an experimental point of view. This technique exhibits good statistics for S 21 . The results illustrate that the field in a source-stirred cavity has characteristics very similar to the field in a reverberation chamber when mechanical stirring is used. We show statistics for measurements of source stirring over a wide frequency range. 1

Reverberation chambers a la carte: An overview of the different mode-stirring techniques

“…Experimental and theoretical studies, e.g. [44] - [46] have further confirmed the validity of the source-stirred chamber.…”

Reverberation Chamber Modeling Based on Image Theory: Investigation in the Pulse Regime

“…CIR measurements were done with a 200 ps long impulsion giving a 2.5 GHz bandwidth. The antennas used were two identical wide band horn antennas (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18). The values of the quality factor Q used here are an averaging of Q(f ) with f from 1 GHz to 2 GHz.…”

Experimental characterization of a reverberation chamber excited by the source stirring technique

“…Some encouraging results were obtained in a preliminary experimental investigation [5] by the authors, and the development of a rigorous electromagnetic model [6][7] allowed to assess the theoretical feasibility of the source stirring technique.…”

“…This measurement was repeated for all the 190 pairs of antennas, allowing us to analyze the statistics of the received power. A suitable way to give an immediate broadband comparison between the observed distribution and the expected one (a chisquare with two degrees of freedom (DOF) 2 2 χ ) is to plot the data in terms of percentiles [5]. These percentiles represent the value of the sample that is greater than a certain percentage (i.e., 25 %, 50 %, and 75 %) of all the samples.…”