Title :
Relevance of complex normalisation in precision reflectometry
Author_Institution :
Private Address, Amersham, UK
Abstract :
The high accuracy now being claimed for precision reflectometers, calibrated with air-dielectric line standards, lead to a significant difference between reflection coefficients normalised to a nominal real characteristic impedance and the complex characteristic impedance of these standards. Examples are given of the spirals obtained with variable-length lines at 300 MHz.
Keywords :
electric impedance; measurement standards; reflectometry; 300 MHz; air-dielectric line standards; characteristic impedance; complex normalisation; precision reflectometry; reflection coefficients; spirals; variable-length lines;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830407
