Advanced Calibration Techniques for VNAs
Advanced Calibration Techniques for VNAs
Advanced Calibration Techniques for VNAs
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Summary• <strong>Calibration</strong> is a key part of accurate measurements using vectornetwork analyzers• Many new techniques increase accuracy or make calibrationeasier to per<strong>for</strong>m, especially <strong>for</strong> fixtured or on-wafermeasurements• The “Unknown Thru” calibration eliminates cablemovement and simplifies non-insertable calibrationsUnknown thru• Data-based-standard definitions and expanded calibrationusing weighted-least-squares math greatly improves accuracy <strong>for</strong>67 GHz and 110 GHz measurements• Testing multiport devices is easier and moreaccurate than ever due to N-port calibrationand reduced-standard calibrations<strong>Advanced</strong> VNA <strong>Calibration</strong>© Agilent Technologies, Inc. 2006 Page M6- 82