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Results of network analyzer measurements with leakage errors-corrected with direct calibration techniques

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2 Author(s)
Heuermann, H. ; Inst. fur Hochfrequenztech., Ruhr-Univ., Bochum, Germany ; Schiek, B.

Exact calibration procedures to correct two-port measurements with leakage errors are developed for a network analyzer having three or four measurement channels. Many measurement systems including open air devices, such as MMIC wafer probes, contain numerous crosstalk paths which are included in the full models of the direct calibration procedures. These novel 15-term and 22-term procedures are based on closed solutions and need five and six successive measurements of completely known calibration standards. First, both procedures solve these general error models exactly. The reduction of the common 22-term model to a 10-term model describes a network analyzer with three measurement channels in a simple and common manner. In this way one may create a great number of new calibration procedures. The sensitivity and accuracy of a direct 15-term and a direct 22-term error correction procedure is demonstrated by experimental results

Published in:

Instrumentation and Measurement, IEEE Transactions on  (Volume:46 ,  Issue: 5 )

Date of Publication:

Oct 1997

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