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Identification of the complex relative dielectric constant of porous polymers at different degrees of humidity
- Source :
- Advances in Radio Science, Vol 6, Pp 5-8 (2008)
- Publication Year :
- 2008
- Publisher :
- Copernicus Publications, 2008.
-
Abstract
- In order to investigate the complex relative dielectric constant of different materials over a frequency range of 50 MHz to 3 GHz a setup has been built that allows rf-measurements in a climate chamber. Within this chamber the temperature and humidity can be changed and be measured by accurate sensors. The construction of the rf-part of the setup has been made with an outer cylindrical shell that allows climate interactions through its large orifices. Methods for calculating the complex relative dielectric constant from the measured scattering parameters are presented and the changes of the relative constants due to different humidity conditions are shown.
- Subjects :
- chemistry.chemical_classification
Range (particle radiation)
Materials science
business.industry
Shell (structure)
Relative permittivity
Humidity
General Medicine
Polymer
Optics
chemistry
lcsh:TA1-2040
Scattering parameters
Composite material
business
Porosity
lcsh:Engineering (General). Civil engineering (General)
Body orifice
Physics::Atmospheric and Oceanic Physics
Subjects
Details
- Language :
- German
- ISSN :
- 16849973 and 16849965
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- Advances in Radio Science
- Accession number :
- edsair.doi.dedup.....d575dbb129a9f46195524f3076c73991