M. Pulido-Gaytán, J. Reynoso‐Hernández, M. C. Maya‐Sanchez, A. Zarate-de Landa, J. R. Loo-Yau
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On the implementation of the LZZ calibration technique in the S-parameters measurement of devices mounted in test fixtures
This paper introduces a methodology for the design and verification of the set of microstrip structures necessary to implement the line, offset-open, offset-short (LZZ) calibration technique in the small-signal characterization of devices mounted in coaxial-to-microstrip test fixtures. The usefulness of the LZZ calibration in such application is verified by comparing the S-parameters of a GaN-HEMT packaged transistor corrected using the LZZ with those corrected using the thru-reflect-line (TRL) calibration technique.