Wide Band (0,5-67 GHz) Dielectric Properties of Biosourced Cellulose Ester Flexible Films
2019 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)（2019）
Abstract
In this work, the dielectric properties of a biosourced polymer are investigated. To that end, coplanar transmission lines were fabricated on a 600 μm thick cellulose palmitate substrate by using a transfer technique and photolithography. Then, the S-parameters of the transmission lines were measured in a broad microwave frequency band spanning from 0,5 to 67 GHz. Finally, the propagation constant was determined and the complex effective permittivity was extracted.
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Key words
cellulose ester,biopolymer,dielectric properties,microwave characterization
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