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Estimation of effective permittivity and effective thickness of inhomogeneous materials at 52-70 GHz

 
: Felbecker, R.; Keusgen, W.; Kortke, A.; Peter, M.

European Association on Antennas and Propagation -EurAAP-:
EuCAP 2009, 3rd European Conference on Antennas and Propagation. Proceedings. CD-ROM : 23 - 27 March 2009, Berlin, Germany
Berlin: VDE-Verlag, 2009
ISBN: 978-3-8007-3152-7 (CD-ROM)
ISBN: 978-1-4244-4753-4 (Print)
ISBN: 978-3-00-024573-2 (Online)
pp.3883-3885
European Conference on Antennas and Propagation (EuCAP) <3, 2009, Berlin>
English
Conference Paper
Fraunhofer HHI ()
carbon fibre reinforced plastic; inhomogeneous media; microwave material; permittivity

Abstract
In this paper, a free-space method is used to measure the reflection coefficient of various materials in the 60 GHz band. This measurement method may be used to determine the effective permittivity and effective thickness of inhomogeneous materials. The materials of interest are carbon fiber reinforced plastic (CRP) and glass fiber reinforced plastic (GRP) as used in aircraft passenger cabins. Homogeneous materials like glass and acrylic glass are used to validate the method for the estimation of the effective permittivity and effective thickness.

: http://publica.fraunhofer.de/documents/N-101948.html