Single port single connection VNA calibration apparatus

Details Single port single connection VNA calibration apparatus Single port single connection VNA calibration apparatus

2005-07-12

2005-07-12

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Circuit tuning

Reexamination Certificate

active

06917892

ABSTRACT:
A method and apparatus are used to calibration a Vector Network Analyzer (VNA). The method includes providing a calibration module with a single port, providing within the calibration module a set of reflecting components with known scattering parameters, providing control signals to the calibration module through the single port, providing the known scattering parameters to the VNA through the single port, coupling one of reflecting components to the VNA, measuring scattering parameters, and comparing the measured scattering parameters with the known scattering parameters. The apparatus includes a calibration module and a controller module. In one embodiment, the calibration module includes a set of reflecting components, a memory that stores the characterization data, and a current source which sends characterization data in the form of current pulses to the controller module. The controller module includes a voltage source that generates the control signals used by the calibration module.

REFERENCES:
patent: 5327139 (1994-07-01), Johnson
patent: 5548221 (1996-08-01), Adamian et al.
patent: 2003/0032067 (2003-02-01), Hefti
Ballo, D., Network Analyzer Basics, 1998 Back to Basics Seminar, Hewlett-Packard Company.

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