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64 DESIGN007 MAGAZINE I AUGUST 2023 A Q&A with Chris DeMartino MODELITHICS Simulation models are important weapons in the battle for signal integrity. Because semi- conductor companies are oen less than help- ful in offering detailed models, engineers are le to spend time creating their own models or to acquire models from third parties. We recently asked Chr is DeMar tino, an applications engineer at Modelithics, to discuss the company's focus on providing simulation models, primarily for the RF and microwave segments. In this interview, Chris explains the Modelithics business "model" and why the need for good models continues to grow at a rapid pace. Chris, let's start with some background. Tell us about Modelithics. Modelithics has specialized in RF, micro- wave, and millimeter-wave measurements, and measurement-based, as well as electro- magnetic analysis-based modeling of RF and microwave components and semiconduc- tor devices, since 2001. We offer an extensive library collection of models for both passive and active components that are compatible with multiple industry-standard EDA soware tools. ese libraries include scalable models (known as Modelithics Microwave Global Models) for RLC components, nonlinear mod- els for diodes and transistors, and 3D models for full-wave electromagnetic (EM) simula- tions, as well as higher level system compo- nent models. In terms of measurement capa- bilities, we have a large repertoire of test-and- measurement equipment that make it possible for the company to measure S-parameters, IV, load pull, noise parameters, ESR, power, load- pull, and non-linear distortion characteristics. Model Citizens: Modelithics