Non-linear measurement data has been exploited in various ways to create behavioral models for high frequency components. Formulations of these models have been defined in terms of traveling waves, with a desire to represent nonlinear behavior of high frequency transistors through a direct extension from linear s-parameters.

The Mesuro model portfolio is comprised of two models  – each targeted at a particular end use – Cardiff Model Lite (CML), where the desired output is a local model, and Cardiff Model+ (CM+), which incorporates higher order mixing terms allowing a single model to fit over a range of impedance space.

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EDA example using CM+

The Cardiff Model portfolio is fully supported in all major EDS tools including AWR Microwave office and Keysight Advanced Design System. These models are ideal for release to customers. They are accurate and as they are black box no reverse engineering of the underlying technology is possible.

Typical Cardiff Model Setup

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