Patent ID: 6147501
Filing Date: 2000-11-14
Classification: G01R

Abstract:
A method for performing calibration of a network analyzer system, the method comprising the following steps:(a) performing an initial calibration for test ports of the network analyzer system comprising the following substeps:(a.1) performing a measurement calibration using calibration standards, the calibration standards being located in a reference plane located outside the network analyzer system, the measurement calibration yielding initial calibration coefficients,(a.2) measuring electronic standards within the network analyzer system to produce initial measured electronic standards, and(a.3) using the initial calibration coefficients and the measured electronic standards to generate initial corrected electronic standards; and,(b) performing an automatic recalibration for the test ports, the automatic recalibration being performed after initial calibration of all the test ports in step (a), the automatic recalibration being performed without use of calibration standards located in a reference plane located outside the network analyzer system and the automatic recalibration comprising the following substeps:(b.1) measuring the electronic standards within the network analyzer system to produce recalibration measured electronic standards, and(b.2) using the recalibration measured electronic standards and the initial corrected electronic standards to produce recalculated calibration coefficients.