Title :
Terahertz dielectric characterisation of polymethacrylimide rigid foam: the perfect sheer plate?
Author :
Roman, C. ; Ichim, O. ; Sarger, L. ; Vigneras, V. ; Mounaix, P.
Author_Institution :
Centre de Phys. Moleculaire Opt. et Hertzienne, Univ. Bordeaux, Talence, France
Abstract :
Terahertz time-domain spectroscopy measurements have been performed to characterise polymethacrylimide rigid foam in the 0.1-2 THz range. The authors found remarkably low permittivity (∼1.03) and dielectric loss tangent (<0.5%) for thicknesses ranging from 3 to 15 mm with weak frequency dependence, making this material very promising for THz applications.
Keywords :
dielectric loss measurement; dielectric materials; permittivity; polymer foams; submillimetre wave measurement; time-domain analysis; 0.1 to 2 THz; 3 to 15 mm; dielectric loss tangent; permittivity; polymethacrylimide rigid foam; submillimetre waves; terahertz dielectric characterisation; terahertz time-domain spectroscopy;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20045754
