NLT Library

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The Modelithics NLT Non-Linear Transistor Library™ contains the industry's most advanced simulation models for transistors. These reliable, measurement-based models maximize the RF/MW electronic design automation (EDA) process, reduce design cycle times, and lower product development cost. The equivalent circuit models have been extracted from a combination of precision DV-IV, S-Parameter, gain, power and noise measurements under various bias and impedance (load-pull and source-pull) conditions across the given frequency range. High-power or low-noise amplifiers, oscillators - all the latest designs - can now be simulated with greater confidence than ever before.

Features:

 
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Modelithics models incorporate advanced features that fully account for substrate-related effects. Where applicable, substrate-scaleable models are generate from multiple sets of measurements, made with parts mounted on several fixtures using a variety of PCB materials, or multi-layer board thicknesses. The models are valid over a continuous range of substrate thicknesses and dielectric constants, bounded only by the H/Er range of the fixtures used during model measurements.
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Modelithics low-power transistor models include accurate, measurement-validated noise simulation capability. Bias-dependent 1/f and noise parameter predictions enable rapid optimization of gain, match and noise performance. As a result, design trade-offs at the circuit and system level can be efficiently addressed, and the designs finalized much more quickly than before.
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Carefully engineered transistor circuits are designed to reliably meet performance specifications over a range of environmental conditions. Modelithics models accurately simulate transistor performance at ambient temperature extremes, including self-heating effects. Potential design limitations can be identified and resolved before prototypes get to the temperature chamber.
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State-of-the-art non-linear models accelerate the circuit design process when matched with the advanced simulation capabilities of todays EDA tools, including: DC, small-signal and large-signal S-parameters, harmonic balance, transient, envelope, noise, and complex modulation analyses.