Conference Agenda

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Session Overview
O_Tu_C_Room1: Reverberation Chambers (II)
Tuesday, 03/Sep/2019:
2:00pm - 3:20pm

Session Chair: Philippe Besnier
Location: Room 1

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The Semi Reverberating Chamber (SRC) Used for Emulating Typical Real-Life Environments

Antonio Sorrentino, Sergio Cappa, Maurizio Migliaccio, Ferdinando Nunziata

Università degli Studi di Napoli Parthenope, Italy

The Reverberating Chamber (RC) is a standard tool for electromagnetic compatibility (EMC) applications and is becoming always more attractive in the wireless applications fields. In this paper, a new RC setup is proposed, i.e. the RC with two anechoic corners (hereinafter the Semi Reverberating Chamber, SRC). This new setup is shown to be a very powerful tool to emulate real life environment, e.g. the indoor. Experiments accomplished at the Università degli Studi di Napoli Parthenope, formerly Istituto Universitario Navale (IUN) show the good agreement between the real and the SRC measurements in terms of both power delay profile (PDP) and autocorrelation function (ACF).

Application of the Power Balance Method in a System of Nested and Oversized Cavities

ALBERTO Guillaume, ANDRIEU Guillaume, REINEIX Alain

XLIM, France

This paper presents an experimental application of the Power Balance method in the case of a nested coupled-cavity system. Indeed, a system of four coupled cavities inserted within a mode-stirred reverberation chamber is experimentally investigated in this paper. The aim is to compare the total average electric field computed with the method from indirect computations of the electric field using scattering parameter measurements. It is particularly interesting to note that the results are in good correlation even if 1) some cavities are not directly connected from apertures with all the others and 2) if only some cavities are loaded with absorbers.

Measurements and Power Balance Calculations of the Shielding Effectiveness of Partitioned Equipment Enclosures

Andy Marvin, Sarah Parker, John Dawson, Martin Robinson

University of York, United Kingdom

This paper presents calculated and measured Shielding Effectiveness data for shielded enclosures operated in the frequency range where the enclosure is reverberant. The calculated data are obtained from component measurements and are calculated using the Power Balance technique. The Shielding Effectiveness of the different cavities of an enclosure partitioned by stacked circuit cards is obtained.

Geometry and loading effects on performances of mode-stirred reverberation chambers: an experimental study

Ludivine Le Bars1, Jean-François Rosnarho1, Philippe Besnier2, Jérôme Sol2, François Sarrazin3, Elodie Richalot3

1SIEPEL : Société Industrielle d’Etudes et Protections Electroniques, Impasse de la Manille, F-56470 La Trinité-sur-Mer, France; 2INSA Rennes, CNRS, IETR – UMR 6164, F-35000 Rennes, France; 3Université Paris-Est, ESYCOM (FRE2028), CNAM, CNRS, ESIEE-Paris, Université Paris-Est Marne-la-Vallée, F-77454 Marne-la-Vallée, France

In this paper, we aim at highlighting the specific roles of the geometry and loading in a mode-stirred reverberation chamber. A geometrical modification is achieved through the introduction of several metallic caps on the cavity walls, in order to fulfill chaoticity requirements. Loading modifications are achieved by putting absorbers on ground. Tests have been performed in three reverberation chambers of different dimensions, and thus, of different lowest usable frequencies. Respective and combined roles of both types of modification are analyzed and clarified.

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