3D Fresnel Direct Database

Testing scattering codes against experimental data (direct problem)

Presentation

On this page, we propose experimental scattered fields measured for several 3D targets in the microwave domain. The amplitude and phase of these complex fields have been measured by the HIPE group in the anechoic chamber with its spherical setup [1]. Particular care has been necessary to obtain these accurate quantitative measurements. Indeed, the setup has been optimized, a post-procedure has been applied to the fields to correct for drift phenomena [2]. The remnant random noise has been fully characterized [3] and the measured fields have been calibrated using a reference target. We hope these measurements would be useful for people interested in validating their electromagnetic scattering modelling codes.

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Targets

The currently available targets are the following ones:

All the targets permittivity have been measured with the commercial kit EpsiMu [5].

We thank the ANR (Agence Nationale de la Recherche, France) for its financial support to the project SOOT ANR-06-BLAN-0349-03.

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References

[1] J.-M. Geffrin, P. Sabouroux, C. Eyraud, "Free space experimental scattering database continuation : experimental set-up and measurement precision", Inverse Problems 21, S117 (2005).

[2] C. Eyraud, J.-M. Geffrin, A. Litman, P. Sabouroux, H. Giovannini, "Drift correction for scattering measurements", Applied Physics Letters 89, 244104 (2006)
Copyright(2006) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at http://link.aip.org/link/?APL/89/244104.

[3] J-M Geffrin, C Eyraud, A Litman, and P Sabouroux, "Optimization of a bistatic microwave scattering measurement setup : from high to low scattering targets", Radio Science, 44:RS2007, (2009).

[4] O Merchiers, J-M Geffrin, R Vaillon, P Sabouroux, B Lacroix, "Microwave analog to light scattering measurements on a fully characterized complex aggregate", Applied Physics Letters, 94:181107, (2009).
Copyright(2009) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at http://link.aip.org/link/?APL/89/244104.

[5] P. Sabouroux, P. Boschi, "EpsiMu: A new microwave materials measurement kit", Revue de l'Electricité et de l'Electronique 10, pp. 58-62 (2005).

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