A Quasi-Optical Free-Space Method for Dielectric Constant Characterization of Polymer Materials in mm-wave Band Host Publication: Finds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet Authors: A. Elhawil, L. Zhang, J. Stiens, C. De Tandt, N. Gotzen, G. Van Assche and R. Vounckx Publisher: IEEE/LEOS Benelux December Publication Date: Dec. 2007 Number of Pages: 4 ISBN: 978-2-9600753-0-4
Abstract: Polymers attract more and more attention as low loss dielectric materials in
RF and millimeter wave field, because of their interest properties at high frequencies. In
this work, we report a Quasi-Optical free-space method to derive W-band dielectric
constant of some common-used polymers including Polymethylmethacrylate,
polyvinylchloride, Nylon66, Mylar, polytetra-fluorethylene, polypropylene, high and
low density polyethylene, kapton and polyethersulfone. Free-space transmission/
reflection coefficients of the aforementioned materials are measured with a millimeter
wave network analyzer. Genetic algorithm (GA) is employed to compute the complex
dielectric constant. The results are compared with those in other previously published
works.
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