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This paper presents a calibration method allowing to quantify the quality of the electromagnetic field generated in a reverberation chamber. The method requires only to measure the reflection coefficient of an antenna (i.e. S11) for different stirring conditions (i.e. different positions of a mode stirrer for a mechanically stirred chamber). The proposed method requiring a simple measurement setup...
This paper presents a method for studying the performance of mode-stirrers used in Reverberation chamber (RC) by studying their Doppler spectrum obtained in free space or in RC. Indeed, a mode-stirrer must have the largest diffracting properties corresponding to a Doppler Spectrum as spread as possible. For this purpose, a simple analytical model is proposed in order to obtain the Doppler spectrum...
This paper presents a calibration method for quantifying the quality of the electromagnetic field generated in a reverberation chamber. The method is based on S21 measurements between 2 antennas inserted in the RC for different stirring conditions (i.e. different positions of a mode stirrer for a mechanically stirred chamber). The proposed method requiring a simple measurement setup is shown to drastically...
This paper presents an innovative and compact injection system able to extend the possibility to perform bulk current injection (BCI) tests until 2 GHz (at least). The proposed structure is a Stripline injection cell ensuring the propagation of a progressive transverse electromagnetic wave (TEM). Within the structure, the victim cable is exposed to a tangential electric field of high amplitude corresponding...
This paper presents an innovative injection system (based on a Stripline injection cell) able to extend the possibility to perform BCI tests until 2 GHz. Encouraging experimental results are presented showing the interest and the performances of the proposed system in comparison to reverberation chamber immunity tests.
An original method allowing to define from measurements a specific frequency called “Quasi-Ideal Reverberation Chamber Minimum Frequency” (QIRCMF) is presented. This frequency corresponds to the frequency where a mode stirred reverberation chamber starts to work “quasi-ideally”. The method is based on 1) the assessment of the electromagnetic field distributions obtained in the working volume (in comparison...
In this paper, a method for extracting and quantifying the weight of cavity modes within a reverberation chamber (RC) in the presence of different stirrers is presented from simulations performed with the FEKO software. The presented results clearly show the relationship between the efficiency of stirring and the stirred volume.
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