3-D Imaging of a Microwave Absorber Sample From Microwave Scattered Field Measurements

Jean-Michel Geffrin 1 Christelle Eyraud 1 Amelie Litman 1
1 HIPE - HIPE
FRESNEL - Institut FRESNEL
Abstract : The internal structure of a sample of an absorber is retrieved from its measured scattered field. By its very nature, this target is a very weak-scatterer as it is used to cover the walls in anechoic chambers. The real part of its permittivity is rather small but its dielectric losses are non negligible. Quantitative maps of the complex permittivity of the sample were obtained from monochromatic scattered fields measured inside an anechoic chamber in a multistatic configuration. An imaging procedure taking into account the noise characteristics disturbing the measurements was used for this purpose.
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Jean-Michel Geffrin, Christelle Eyraud, Amelie Litman. 3-D Imaging of a Microwave Absorber Sample From Microwave Scattered Field Measurements. IEEE Microwave and Wireless Components Letters, Institute of Electrical and Electronics Engineers, 2015, 25 (7), pp.472 - 474. ⟨10.1109/LMWC.2015.2427577⟩. ⟨hal-01279547⟩

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