Advanced Calibration Techniques for VNAs
Advanced Calibration Techniques for VNAs
Advanced Calibration Techniques for VNAs
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Two Versus Four Port Embedding /De-Embedding• Question: On a balanced port, what is the difference between:– Two .s2p embedding/de-embedding files?– One .s4p embedding/de-embedding files?• Answer: Crosstalk terms!.s4p filePNA21.s2p file.s2p fileDUTPNA21DUTCannot simulate fixture crosstalkbetween PNA ports 1 and 2Can use full “leaky” modelto simulate fixture crosstalk<strong>Advanced</strong> VNA <strong>Calibration</strong>© Agilent Technologies, Inc. 2006 Page M6- 67