The Absolute Calibration of Periodic Microwave Phase Shifters without a Standard Phase Shifter

An absolute calibration procedure for periodic microwave phase shifters is described. Increments on the phase shifter are compared by substitution with a reproducible phase-shift step of initially unknown value. The periodic nature of the phase shifter provides a reference phase shift of 360/spl deg...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 1972-08, Vol.20 (8), p.532-537
Main Authors: Somlo, P.I., Hollway, D.L., Morgan, I.G.
Format: Article
Language:English
Subjects:
Bibliographies
Bridge circuits
Calibration
Frequency
Instruments
Phase measurement
Phase shifters
Reproducibility of results
Senior members
Testing
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Description
Summary:An absolute calibration procedure for periodic microwave phase shifters is described. Increments on the phase shifter are compared by substitution with a reproducible phase-shift step of initially unknown value. The periodic nature of the phase shifter provides a reference phase shift of 360/spl deg/, and alternative methods are outlined for the derivation of the correction curve from the step measurements. It is shown that the accuracy of the calibration is governed by the precision and reproducibility of the phase shifter under test.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.1972.1127801