Advanced Calibration Techniques for VNAs
Advanced Calibration Techniques for VNAs
Advanced Calibration Techniques for VNAs
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Unknown Thru <strong>Calibration</strong>The “Unknown Thru” technique is…• Used when a “flush” (zero-length or mate-able) thru cannot be usedor when using a flush thru would cause measurement impairment• A refinement of SOLT calibration• Also called short-open-load-reciprocal-thru (SOLR)Unknown Thru technique eliminates need <strong>for</strong>…• Matched or characterized thru adapters• Moving or bending test cablesWorks great <strong>for</strong> many component measurement challenges…• Non-insertable devices• Mechanically difficult situations• Multiport devices<strong>Advanced</strong> VNA <strong>Calibration</strong>© Agilent Technologies, Inc. 2006 Page M6- 11