Abstract
We present a de-embedding roadmap for extracting parasitic elements of a nanowire (NW) metal semiconductor field effect transistor (MESFET) from full two-port scattering-parameter measurements in 0.1–25 GHz range. The NW MESFET is integrated in a microwave coplanar waveguide structure. A conventional MESFET circuit model is modified to include capacitors of small value that is non-negligible in NW devices. We follow a step-by-step removal of external elements and an iteration search for optimized model data. The fitted model indicates good agreement with experimental data. This letter reflects a significant step toward full circuit modeling of NW MESFETs under normal operating conditions.
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