Advanced Calibration Techniques for VNAs
Advanced Calibration Techniques for VNAs
Advanced Calibration Techniques for VNAs
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The Need <strong>for</strong> <strong>Calibration</strong>How do we get accuracy?– With vector-error-corrected calibration– Not the same as the yearly instrument calibrationWhy do we have to calibrate?– It is impossible to make perfect hardware– It would be extremely difficult and expensive to make hardwaregood enough to entirely eliminate the need <strong>for</strong> error correctionWhat does calibration do <strong>for</strong> us?– Removes the largest contributor to measurementuncertainty: systematic errors– Provides best picture of true per<strong>for</strong>mance of DUTSystematic error<strong>Advanced</strong> VNA <strong>Calibration</strong>© Agilent Technologies, Inc. 2006 Page M6- 5
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