Measurement of the microwave conductivity of a polymeric material with potential applications in absorbers and shielding

Author

Naishadham, Krishna ; Kadaba, Prasad K.

Author_Institution

Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA

Volume

39

Issue

7

fYear

1991

fDate

7/1/1991 12:00:00 AM

Firstpage

1158

Lastpage

1164

Abstract

The microwave conductivity of a new material, the polymer poly-p-phenylene-benzobis-thiazole (PBT) made conductive by ion-implantation doping with iodine, is measured at 9.89 GHz as a function of temperature using the cavity perturbation technique applicable to thin films of arbitrary shape. The DC and microwave conductivities of PBT are seen to approach asymptotically the low-temperature limit predicted by Mott´s energy-dependent hopping model. The potential utilization of conductive polymers in microwave absorbers and electromagnetic interference (EMI) shielding is examined using layered media EM theory

Keywords

conducting polymers; electrical conductivity measurement; electromagnetic wave absorption; ion implantation; microwave measurement; shielding; 9.89 GHz; EMI shielding; Mott´s energy-dependent hopping model; PBT; cavity perturbation technique; conductive polymers; ion-implantation doping; layered media EM theory; microwave absorbers; microwave conductivity; poly-p-phenylene-benzobis-thiazole; polymeric material; Conducting materials; Conductivity measurement; Doping; Electromagnetic interference; Microwave measurements; Microwave theory and techniques; Perturbation methods; Polymer films; Shape measurement; Temperature;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.85383

Filename

85383