New in-situ calibration of diode detectors used in six-port network analyzers

Author

Colef, Gabriel ; Karmel, Paul R. ; Ettenberg, Morris

Author_Institution

Dept. of Electr. Eng., City Coll., City Univ. of New York, NY, USA

Volume

39

Issue

1

fYear

1990

fDate

2/1/1990 12:00:00 AM

Firstpage

201

Lastpage

204

Abstract

The authors present a novel method for calibrating the diode detectors used in six-port network analyzers without disconnecting the diodes. The method uses either a precision variable attenuator at the six-port input or a power meter connected to the six-port test port. No actual measurement of power is required to calibrate the diode detectors when an attenuator is used. The method is very well suited to in situ calibration of the diode detection circuits for the operation of the six-port with pulsed signals when the average power detected by the power meter drops to very low levels for low duty cycles. In these cases. The precision variable attenuator method is required

Keywords

attenuators; calibration; microwave reflectometry; network analysers; average power; diode detectors; in-situ calibration; power meter; precision variable attenuator; pulsed signals; six-port network analyzers; Attenuation measurement; Attenuators; Calibration; Circuits; Diodes; Envelope detectors; Intelligent networks; Power measurement; Testing; Voltage;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.50444

Filename

50444