Method and device for the calibration of network analyzers using a comb generator

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United States of America Patent

PATENT NO 8400167
APP PUB NO 20100204943A1
SERIAL NO

12665806

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Abstract

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A vectorial network analyzer including n test ports. With the connection of several different calibration standards to the test ports, several calibration measurements are implemented. For the calibration, different measurements are implemented. Initially, in n calibration measurements, a comb-generator signal is supplied via a direct connection successively to all n test ports. Using a measuring point at the output of the comb generator and the measuring point associated with the respective test port, phase measurements are implemented at all of the frequencies forming the comb-generator signal. A frequency-dependent phase offset is determined from the phase measurements. Moreover, in at least one measurement, all n test ports are terminated successively in each case using known, input impedances, identical within one measurement, of arbitrary transmission properties, wherein successively, all n test ports are excited using a transmission oscillator successively with all frequencies of the comb-generator signal.

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Patent Owner(s)

  • ROHDE & SCHWARZ GMBH & CO. KG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Heuermann, Holger Aachen, DE 25 237

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