26-GHz vector network analyzer

Authors

  • Владимир Анатольевич Карлов Oles Honchar Dnipropetrovsk National University 72 Gagarin str., Dnipropetrovsk, 49010, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2012.6008

Keywords:

vector network analyzer, moving load, reflection coefficient

Abstract

A 26 GHz vector network analyzer was developed on the basis of electrodynamic model of an E-flat cross-shaped attenuator. A construction of five-shoulders analyzer consists of three detectors, directed from the scalar reflectometer, which are included in the measurement channels of the E-flat waveguide cross-shaped attenuator. The construction of the device was developed with the requirement of only one indicating heterogeneity of the attenuator in the device transmitter. According to the equivalent circuit of the E-cross, its adjacent shoulders are included in the measurement channel of the analyzer sequentially to each other. This feature allows the definite calculation of the complex reflection coefficient and the representation of the equivalent circuit in the form of a four-probe section with the successive probes-shoulders. A mathematical model of processing of readings of the power indicators, which is embedded in a computer memory, allows the calculation of the complex reflection coefficient of the solution of a system of two quadratic equations. The simplicity of the construction of the attenuator-converter allows its production with the same tolerances as for the sizes of the rectangular waveguides and the building of the adequate electrodynamic model. Under certain calculating parameters of the cross-shaped analyzer, the calibration of the device is reduced to the calibration of the power indicators on one agreed load. The method of moving load was used to assess the measurement error in a wide band of frequencies

Author Biography

Владимир Анатольевич Карлов, Oles Honchar Dnipropetrovsk National University 72 Gagarin str., Dnipropetrovsk, 49010

Associate professor

Department of Applied and Computers Radio physics’

References

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Published

2012-12-25

How to Cite

Карлов, В. А. (2012). 26-GHz vector network analyzer. Eastern-European Journal of Enterprise Technologies, 6(11(60), 52–55. https://doi.org/10.15587/1729-4061.2012.6008

Issue

Vol. 6 No. 11(60) (2012): Radio engineering information tools

Section

Radio engineering information tools

License

Copyright (c) 2014 Владимир Анатольевич Карлов

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