Title :
Shielding effectiveness of flat samples and conductive gaskets: New measuring cell for the frequency range 1–18 GHZ
Author_Institution :
Lab. for EMC, KHBO, Oostende
Abstract :
In the past, different methods have been defined and some standardised for the characterisation of flat samples of shielding materials. Basically, the methods are based on three principles: coaxial cell methods simulating far field conditions, near-field cells (especially magnetic near field) and methods based on a modified Mil Std 285 design. The first two are typically restricted up to the frequency of around 1 GHz, and only the latter one allows measurements above 1 GHz. There is a lack of simple measuring setups in order to characterise the shielding effectiveness of small flat samples in this frequency range of 1- 18 GHz. In this paper, the design and construction of such a measuring is cell is discussed and a first set of measurements is summarised.
Keywords :
UHF measurement; coaxial cables; conducting materials; electromagnetic shielding; gaskets; microwave measurement; network analysers; coaxial cell method; conductive gaskets; double-shielded low-loss coaxial cable; frequency 1 GHz to 18 GHz; measuring cell; modified Mil Std 285 design; shielding effectiveness; shielding materials; vector network analyser; Antenna measurements; Attenuation; Coaxial components; Conductivity measurement; Copper; Frequency measurement; Gaskets; Magnetic field measurement; Mechanical variables measurement; Pressure measurement;
Conference_Titel :
Electromagnetic Compatibility, 2008. EMC 2008. IEEE International Symposium on
Conference_Location :
Detroit, MI
Print_ISBN :
978-1-4244-1699-8
Electronic_ISBN :
978-1-4244-1698-1
DOI :
10.1109/ISEMC.2008.4652049
