An enhanced time-domain approach for dielectric characterization using stripline geometry

Author

Fidanboylu, K.M. ; Riad, S.M. ; Elshabini-Riad, A.

Author_Institution

Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

41

Issue

1

fYear

1992

fDate

2/1/1992 12:00:00 AM

Firstpage

132

Lastpage

136

Abstract

A time-domain approach for dielectric characterization using a stripline geometry is presented. The technique uses both time domain reflectometry (TDR) and time domain transmission (TDT) measurements for determining an optimum frequency-dependent lossy transmission line model for the stripline under test. The optimization is done in the time domain by comparing the experimental TDR and TDT response waveforms with the simulated ones using a nonlinear least squares fit. The material properties such as the complex permittivity of the dielectric material are determined from the optimum lossy transmission line model. The authors present both simulated and experimental results

Keywords

dielectric measurement; digital simulation; least squares approximations; microwave measurement; optimisation; strip lines; time-domain reflectometry; waveguide theory; Du Pont Pyralux; complex permittivity; computer simulation; dielectric characterization; empirical model; equivalent network; network analyser; nonlinear least squares fit; optimum frequency-dependent lossy transmission line model; response waveforms; stripline geometry; time domain reflectometry; time domain transmission; Dielectric loss measurement; Dielectric measurements; Frequency measurement; Geometry; Permittivity measurement; Propagation losses; Reflectometry; Stripline; Time domain analysis; Transmission line measurements;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.126647

Filename

126647