Steering Focusing Waves in a Reverberation Chamber with Generalized Time Reversal

Abstract : Generalized time reversal was introduced in a previous paper from a theoretical point of view. In this paper experiments are conducted to demonstrate its application to a reverberation chamber, as a method for generating coherent wavefronts in a medium displaying random propagation. Wavefronts thus generated were sampled over a planar surface, confirming that they propagate as if in a free-space environment. The accuracy with which they match their free-space counterpart is not affected by changing their features, e.g., direction of arrival and focus. These results prove that a single excitation antenna can generate complex wavefronts when coupled to diffusive wave propagation.
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Submitted on : Friday, October 7, 2016 - 11:29:36 PM
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Andrea Cozza, Florian Monsef. Steering Focusing Waves in a Reverberation Chamber with Generalized Time Reversal. IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2016, 65 (3), pp.1349 - 1356. ⟨10.1109/TAP.2016.2645788⟩. ⟨hal-01377945⟩

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