Title :
A Fast Network Analyzer for the Frequency Range of 10 MHz to 4 GHz
Author :
Schulte, B. ; Musch, T. ; Schiek, B.
Author_Institution :
RF & Microwave Engineering Institute, Ruhr-University of Bochum, UniversitÿtsstraÃ\x9fe 150, 44780 Bochum, Germany. phone: +49 234 3223868
Abstract :
The developed network analyzer with four channels allows very fast measurements of S-parameters in a frequency range from 10 MHz up to 4 GHz. This is possible because highly linear analogue frequency ramps are used. Thus the settling times of stepped frequency sweeps of conventional analyzers are eliminated. The required high linearity and high stability of the frequency ramps are achieved by using fractional divider phase locked loop circuits. The signal processing from the fast network analyzer differs from that of the conventional network analyzer. The analytical signal is determined by a double Fourier transformation of the complete frequency sweep. Conventional calibration procedures are then applied in order to correct the systematic errors of the fast network analyzer.
Keywords :
Calibration; Circuit stability; Error correction; Frequency conversion; Frequency measurement; Linearity; Phase locked loops; Scattering parameters; Signal analysis; Signal processing;
Conference_Titel :
Microwave Conference, 2003 33rd European
Conference_Location :
Munich, Germany
Print_ISBN :
1-58053-834-7
DOI :
10.1109/EUMA.2003.340899