Uncertainties of multiport VNA S-parameter measurements applying the GSOLT calibration method

Wei Zhao, Xiaodong Yang, Jiankang Xiao, Qammer H. Abbasi, Hongbo Qin, Huorong Ren

Research output: Contribution to journalArticle

7 Citations (Scopus)


For the general short-open-load-thru (SOLT) calibration of the n-port vector network analyzer with n + 1 measurement channels, the sensitivity coefficients for the S-parameters of the n-port device under test are developed as functions of the deviations of the scattering parameters for the SOLT calibration standards. Using the concept of general node equation, a generalized formula for the S-parameter deviations with respect to the error terms has been deduced. In addition, expressions representing the deviations of error terms with respect to the non-ideal calibration standards are given by a series of matrix operations. Finally, after calculation of sensitivity coefficients, they can be used for establishing the type-B uncertainty budget for S-parameter measurements.

Original languageEnglish
Article number6279471
Pages (from-to)3251-3258
Number of pages8
JournalIEEE Transactions on Instrumentation and Measurement
Issue number12
Publication statusPublished - 1 Jan 2012



  • General node equation
  • general short-open-load-thru (GSOLT) calibration
  • measurement uncertainty
  • multiport vector network analyzer (VNA)
  • sensitivity coefficient

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering

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