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29 September 2006Microwave dielectric properties of biopolymers
A new capacitive test structure is used to characterize biopolymers at microwave frequencies. The new test structure is comprised of a parallel plate capacitor, combined with coplanar waveguide-based input and output feed lines. This allows microwave measurements to be taken easily under an applied DC electric field. The microwave dielectric properties are characterized for two biopolymer thin films: a deoxyribonucleic acid (DNA)-based film and a bovine serum albumin (BSA)-based film. These bio-dielectric thin-films are compared with a standard commercial polymer thin film, poly[Bisphenol A carbonate-co-4,4'(3,3,5-trimethyl cyclohexylidene) diphenol], or amorphous polycarbonate (APC).
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Carrie M. Bartsch, Guru Subramanyam, James G. Grote, F. Kenneth Hopkins, Lawrence L. Brott, Rajesh R. Naik, "Microwave dielectric properties of biopolymers," Proc. SPIE 6401, Optical Materials in Defence Systems Technology III, 640107 (29 September 2006); https://doi.org/10.1117/12.687485