Title :
Complex permittivity of concrete in the frequency range 0.8 to 12 GHz
Author :
Olkkonen, Martta-Kaisa ; Mikhnev, V. ; Huuskonen-Snicker, Eeva
Author_Institution :
Dept. of Radio Sci. & Eng., Aalto Univ., Espoo, Finland
Abstract :
The complex permittivity of a concrete tile is determined in the frequency range 0.8 to 12 GHz. The measurement is made as a transmission measurement with Vivaldi type antenna pair. The presented measurement method allows the defining of the complex permittivity of any kind of concrete, even when the material composition is not known. The permittivity is derived from measured transmission coefficients. The data undergoes signal processing in Matlab by which the multiple reflections inside the sample are removed. Thereafter, the data contain only the reflection caused by the air-concrete interface and the permittivity can be calculated.
Keywords :
UHF radio propagation; concrete; microwave propagation; permittivity; permittivity measurement; Vivaldi type antenna pair; concrete complex permittivity; concrete tile; frequency 0.8 GHz to 12 GHz; measurement method; multiple reflection; transmission coefficient; Antenna measurements; Concrete; Permittivity; Permittivity measurement; Reflection; Transmitting antennas; Concrete; broadband measurement; complex permittivity;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
