Results 181 to 190 of about 50,611 (217)
REVERBERATION CHAMBER WITH IMPROVED ELECTROMAGNETIC FIELD UNIFORMITY
, 2016 Florian Monsef
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Evaluation of Stochastic Electromagnetic Field in Multi-Volume Reverberation Chamber Configurations
2019 International Conference on Electromagnetics in Advanced Applications (ICEAA), 2019Full wave simulations of a reverberation chamber were performed in order to evaluate the stirring efficiency when the overall volume of the chamber was varied, progressively enlarged. The stirrer geometry, position and geometry, do not change during the analysis. We evaluated the stirrer uncorrelated positions, K-factor and the power max-to-mean ratio.
Gabriele Gradoni +3 more
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The Journal of the Acoustical Society of America, 1961
The upper limits for the reverberation time and Q factor of acoustic reverberation chambers with perfectly rigid walls with a smooth surface are determined. The reflection factor for a rigid wall of arbitrary thermal conductivity is determined from a consideration of the viscosity and heat conductivity-boundary layer.
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The upper limits for the reverberation time and Q factor of acoustic reverberation chambers with perfectly rigid walls with a smooth surface are determined. The reflection factor for a rigid wall of arbitrary thermal conductivity is determined from a consideration of the viscosity and heat conductivity-boundary layer.
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Amplification of electromagnetic waves by time reversal mirror in a leaky reverberation chamber
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 2012In this paper, the influential factors on focusing amplitude of electromagnetic waves by time reversal mirror in a leaky reverberation chamber have been analyzed. Taguchi's method is combined with the finite difference time domain method to optimize the location of single time reversal mirror in the chamber.
Ju Feng +3 more
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2017 International Applied Computational Electromagnetics Society Symposium - Italy (ACES), 2017
In this paper, a new measurement technique for estimating the polarization of the electromagnetic field within a reverberating chamber (RC) is proposed. The proposed technique also shows if the chamber is well-stirred. A comparison with previous methods is also achieved.
Sorrentino, Antonio +4 more
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In this paper, a new measurement technique for estimating the polarization of the electromagnetic field within a reverberating chamber (RC) is proposed. The proposed technique also shows if the chamber is well-stirred. A comparison with previous methods is also achieved.
Sorrentino, Antonio +4 more
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2015 IEEE International Workshop on Measurements & Networking (M&N), 2015
In this paper an alternative method for evaluating the spatial uniform and isotropic electromagnetic field within a reverberating chamber (RC) is proposed. Experiments accomplished at the RC of the Universita degli Studi di Napoli Parthenope, formerly Istituto Universitario Navale (IUN) confirm the soundness of the proposed model and its effectiveness ...
MIGLIACCIO, Maurizio +5 more
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In this paper an alternative method for evaluating the spatial uniform and isotropic electromagnetic field within a reverberating chamber (RC) is proposed. Experiments accomplished at the RC of the Universita degli Studi di Napoli Parthenope, formerly Istituto Universitario Navale (IUN) confirm the soundness of the proposed model and its effectiveness ...
MIGLIACCIO, Maurizio +5 more
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Chaotic reverberation chambers for electromagnetic compatibility
2018International audience; Electromagnetic reverberation chambers are now commonly used in the domain of ElectroMagnetic Compatibility (EMC) where electronic devices or wirelessly connected objects are, for instance, submitted to immunity tests. By modifying the standard geometry of current reverberation chambers-which are metallic Faraday cavities-to ...
Legrand, Olivier +4 more
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IEEE Transactions on Electromagnetic Compatibility, 2001
The dependence of the modal density on chamber geometry is analyzed, for general unstirred reverberation chambers at relatively low frequencies of operation. An expression for the lowest usable frequency is derived based on the chamber mode density. The use of curved wave diffractors is investigated as a method for increasing the average mode density ...
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The dependence of the modal density on chamber geometry is analyzed, for general unstirred reverberation chambers at relatively low frequencies of operation. An expression for the lowest usable frequency is derived based on the chamber mode density. The use of curved wave diffractors is investigated as a method for increasing the average mode density ...
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Modeling of complex field inside chaotic Electromagnetic reverberation chambers
2013Electromagnetic reverberation chambers (RC) are nowadays commonly used for electromagnetic immunity testing applications. Thanks to the presence of a mechanical stirrer (generally a rotating metallic object), electronic devices under test are submitted to an isotropic, statistically uniform and depolarised electromagnetic field.
Gros, Jean-Baptiste +2 more
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