UDC 621.317

Automation of the procedure for determining the complex parameters of microwave devices based on the quadrature measurement method

 

Yu. B. Gimpilevich, S. E. Zebek

Sevastopol State University, Universitetskaya str., 33, Sevastopol 299053, Russia

 

The paper is received on July 21, 2019

 

Abstract. A new structure for an automatic meter of complex parameters of microwave two-terminal networks based on a quadrature measurement method is proposed. The meter is designed on the basis of two quadrature detectors with invariant inputs. A mathematical model of a measurement procedure as a redundant system of nonlinear measurement equations is developed. An algorithm for analytic solution of the system of measuring equations is proposed. Formulas for the exact determination of the modulus and argument of the complex reflection coefficient and the incident power level in a microwave path are obtained. An applicability of the numerical solution of the nonlinear measuring equations system is shown for minimization of a square error in case of residuals, which present in the system because of the errors of the measurement procedure.

Key words: the quadrature measurement method, the complex reflection coefficient, amplitude field distribution, phase field distribution, quadrature detector.

References

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For citation:

Yu. B. Gimpilevich, S. E. Zebek. Automation of the procedure for determining the complex parameters of microwave devices based on the quadrature measurement method. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2019. No. 8. Available at http://jre.cplire.ru/jre/aug19/1/text.pdf
DOI  10.30898/1684-1719.2019.8.1