A six-port analyzer of microwave networks based on Fourier discrete transform of the tapped signals, and methods of its calibration
Yu. B. Gimpilevich, R. S. Bandyshev
The authors have analyzed a new method suggested for measurement of complex-valued parameters of microwave circuits. The method is based on processing of the signals, applied to the measurement arms of a six-port, with the aid of Fourier discrete transform. A procedure for calibration of this analyzer with the aid of a set of impedance standards is developed. The results of the modeling the calibration procedure are presented.
ENGEN, G.F. "An improved circuit for implementing the six-port technique of microwave measurements," IEEE Trans. Microwave Theory Tech., v.25, n.12, p.1080-1083, 1977. DOI: https://doi.org/10.1109/TMTT.1977.1129278.
GIMPELEVITCH, Yu.B. "A technique for identification of microwave circuitry complex-valued parameters," RF Patent No. 2022284, Int. Cl. G01R 27/06, Published 30 October 1994 in Bull. Izobr., n.20, 1994.