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Using ABCD parameters and the 8-term error model to represent a non-ideal vector network analyzer (VNA), a new procedure for implementing the Thru-Reflect-Line calibration technique (TRL) is introduced. The novelty of this TRL is the use of ABCD-parameters, instead of transmission parameters, to represent a non-ideal vector network analyzer (VNA). Moreover, this new approach demonstrates, theoretically, the use of lines with complex characteristic impedance as calibration elements. To validate the new TRL procedure, the phase and magnitude of a waveguide sliding short is measured and corrected with the classical TRL. The results are in good agreement, which validates the proposed method.

Using the wave cascading matrix formalism and the 8-term error model for modeling the imperfect measurement system vector network analyzer a new approach of the Thru-Reflect-Line (TRL) calibration technique is introduced and compared with the already existing TRL calibration technique. This new approach allows the utilization of arbitrary characteristic impedance lines as calibration elements, being very useful for high power device characterization which requires impedance transformers. The proposed algorithm differs from the classical TRL in the procedure used to refer the DUT Sparameters to the system impedance.Index Terms -Vector network analyzer (VNA), TRL calibration, characteristic impedance, wave cascading matrix.

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