Computing total scattering cross section from 3-D reverberation chambers time modeling

Baba, Ibrahim El; Lalléchère, Sébastien; Bonnet, Pierre; Benoit, Jaume; Paladian, Françoise

doi:10.1109/apemc.2012.6237863

Cited by 10 publications

(6 citation statements)

References 8 publications

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“…Therefore characterizations which rely on the statistical behavior of the field in RCs are more accurate. This accuracy can be a strong requirement in many applications such as radar cross section [67]- [69], material absorption cross section [6], [20], [70], MIMO and antenna characterization [1], [7], [10], [13], [21], [30], [58], [71], [72], and Ricean radio environment for testing wireless devices [49], [66], [73], [74].…”

Section: Discussionmentioning

confidence: 99%

Uncorrelated Configurations and Field Uniformity in Reverberation Chambers Stirred by Tunable Metasurfaces

Gros,

Lerosey,

Mortessagne

et al. 2019

Preprint

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Reverberation chambers are currently used to test electromagnetic compatibility as well as to characterize antenna efficiency, wireless devices, and MIMO systems. The related measurements are based on statistical averages and their fluctuations. We introduce a very efficient mode stirring process based on electronically reconfigurable metasurfaces (ERMs). By locally changing the field boundary conditions, the ERMs allow to generate a humongous number of uncorrelated field realizations even within small reverberation chambers. We fully experimentally characterize this stirring process by determining these uncorrelated realizations via the autocorrelation function of the transmissions. The IEC-standard uniformity criterion parameter σdB is also investigated and reveals the performance of this stirring. The effect of short paths on the two presented quantities is identified. We compare the experimental results on the uniformity criterion parameter with a corresponding model based on random matrix theory and find a good agreement, where the only parameter, the modal overlap, is extracted by the quality factor.

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Section: Discussionmentioning

confidence: 99%

Uncorrelated Configurations and Field Uniformity in Reverberation Chambers Stirred by Tunable Metasurfaces

Gros,

Lerosey,

Mortessagne

et al. 2019

Preprint

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“…where V represents the volume of RC,

co

represents the light speed in the free space, and

\tau s

is the scattering damping time of

C(t)

, as defined as in 24–26 :

{\rm{C}}(t)={[IFFT\langle S21\rangle ]}^{2}/\langle {[IFFT(S21)]}^{2}\rangle ={e}^{-t/\tau s}

…”

Section: Theoretical Analysis Of Rcmentioning

confidence: 99%

“…where V represents the volume of RC, co represents the light speed in the free space, and τsis the scattering damping time of C t ( ), as defined as in [24][25][26] :…”

Section: Theoretical Analysis Of Rcmentioning

confidence: 99%

Improving working volume and total scattering cross section using polarization convertor stirrer in a reverberation chamber

Lin

Kong

et al. 2023

Micro & Optical Tech Letters

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In our paper, a stirrer made of a polarization converter for a reverberation chamber (RC) is proposed. A cylindrical polarization converter (PC) stirrer with two unit structures arranged alternatively is placed in RC to take the place of a traditional metallic stirrer. Because of the scattering property of the PC stirrer, it is possible to enlarge the working volume and improve the scattering performance of the stirrer in the RC while maintaining the field uniformity and field anisotropy coefficient to meet the testing standard of the International Electrotechnical Commission 61000-4-21. Metallic stirrer and PC stirrer are both placed in the RC simultaneously to make a measurement for guaranteeing the same testing environment. Some parameters of the RC

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“…Nevertheless, the theoretical foundations of TSCS are given as follows. The expression giving the mean value of the E-field E η ( t ) ( η = x , y , z : Cartesian component) over the sources α (in our case, α = 1), probes β (in our case, β = 8) and over the various object locations γ (in our case, γ = 1) at time t , is as follows [18,21]:〈〈Eηfalse(tfalse)〉γ2〉α,β=〈〈Eηfalse(t=0false)〉γ2〉α,βe−t/τs.…”

Section: Introductionmentioning

confidence: 99%

“…The TSCS reveals an interesting criterion to quantify the target scattering ability. In the EMC regard, the TSCS of an RC provides an indication of the capability of the chamber to generate statistical field uniformity, through stirring efficiency [ 16 , 17 , 18 , 19 , 20 ]. To compute the TSCS in a reverberant environment, the commercial software CST Microwave Studio ® (CST China Ltd. Nanjing, China) was employed.…”

Section: Introductionmentioning

confidence: 99%

Parametric Testing of Metasurface Stirrers for Metasurfaced Reverberation Chambers

Sun

et al. 2019

Sensors

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In this paper, the correlation coefficients and the total scattering cross sections (TSCSs) for different types of metasurfaced stirrers and the traditional metallic stirrer, and the effects on field uniformity when such stirrers are used in reverberation chambers, are analyzed. Three metasurfaced stirrers are considered: A stirrer with two unit cells arranged alternatively (#1), a stirrer with two unit cells arranged in a chessboard-like manner (#2), and a stirrer with two unit cells in random arrangement (#3). From the correlation coefficient and TSCS results obtained in simulations, it follows that metasurfaced stirrer #1 is the best option. Field uniformity analysis of the resulting metasurface reverberation chambers (MRC) equipped with the different stirrers also supports this conclusion.

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Computing total scattering cross section from 3-D reverberation chambers time modeling

Cited by 10 publications

References 8 publications

Uncorrelated Configurations and Field Uniformity in Reverberation Chambers Stirred by Tunable Metasurfaces

Uncorrelated Configurations and Field Uniformity in Reverberation Chambers Stirred by Tunable Metasurfaces

Improving working volume and total scattering cross section using polarization convertor stirrer in a reverberation chamber

Parametric Testing of Metasurface Stirrers for Metasurfaced Reverberation Chambers

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