Metasurfaced Reverberation Chamber
Sun, Hengyi (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Li, Zhuo (Nanjing University of Aeronautics and Astronautics. College of Electronic and Information Engineering)
Gu, Changqing (Nanjing University of Aeronautics and Astronautics. College of Electronic and Information Engineering)
Xu, Qian (Nanjing University of Aeronautics and Astronautics. College of Electronic and Information Engineering)
Chen, Xinlei (Nanjing University of Aeronautics and Astronautics. College of Electronic and Information Engineering)
Sun, Yunhe (Nanjing University of Aeronautics and Astronautics. College of Electronic and Information Engineering)
Lu, Shengchen (Nanjing University of Aeronautics and Astronautics. College of Electronic and Information Engineering)
Martín, Ferran (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)

Date:	2018
Abstract:	The concept of metasurfaced reverberation chamber (RC) is introduced in this paper. It is shown that by coating the chamber wall with a rotating 1-bit random coding metasurface, it is possible to enlarge the test zone of the RC while maintaining the field uniformity as good as that in a traditional RC with mechanical stirrers. A 1-bit random coding diffusion metasurface is designed to obtain all-direction backscattering under normal incidence. Three specific cases are studied for comparisons, including a (traditional) mechanical stirrer RC, a mechanical stirrer RC with a fixed diffusion metasurface, and a RC with a rotating diffusion metasurface. Simulation results show that the compact rotating diffusion metasurface can act as a stirrer with good stirring efficiency. By using such rotating diffusion metasurface, the test region of the RC can be greatly extended.
Grants:	Ministerio de Economía y Competitividad TEC2013-40600-R Ministerio de Economía y Competitividad TEC2016-75650-R Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-157
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Published in:	Scientific reports, Vol. 8 (January 2018) , art. 1577, ISSN 2045-2322

DOI: 10.1038/s41598-018-20066-0
PMID: 29371675

10 p, 6.5 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Engineering > CIMITEC-UAB
Articles > Research articles
Articles > Published articles