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A method for measuring the shielding effectiveness of planar anisotropic materials using a rectangular waveguide cell is proposed. Computational models are used to verify the behaviour of the cell and validate its ability to measure shielding effectiveness. Results of measurements on a control sample and three carbon-fibre composite laminates in a GTEM cell are presented. A dynamic range of 70 dB with a capability to discriminate 20 dB of anisotropy is achieved in the frequency range 400-1600 MHz using cubic cells of side length 200 mm and 300 mm.
|Title of host publication||EMC Europe 2010, 9th International Symposium on EMC joint with 20th International Wroclaw Symposium on EMC|
|Subtitle of host publication||13-17 September, 2010|
|Place of Publication||Wroclaw, Poland|
|Publisher||Oficyna Wydawnicza Politechniki Wroclawskiej|
|Number of pages||6|
|Publication status||Published - 1 Sept 2010|