Title :
Characteristic impedance determination using propagation constant measurement
Author :
Marks, Roger B. ; Williams, Dylan F.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
fDate :
6/1/1991 12:00:00 AM
Abstract :
A method by which the characteristic impedance of transmission lines may be easily determined from a measurement of the propagation constant is demonstrated. The method is based on a rigorous analysis using realistic approximations to account for the effects of imperfect conductors. Numerical studies which indicate that high accuracy is possible are discussed. Experiments using a coplanar waveguide which demonstrate a significant improvement in the measurement of S-parameters are described.<>
Keywords :
S-parameters; electric impedance; electric impedance measurement; waveguides; S-parameters; characteristic impedance; indirect measurement; propagation constant measurement; transmission lines; Conductivity; Conductors; Coplanar transmission lines; Coplanar waveguides; Frequency measurement; Impedance measurement; Loss measurement; Propagation constant; Scattering parameters; Transmission line measurements;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
