The Modelithics® Qorvo GaN Library is a collection of accurate nonlinear simulation models for Qorvo die and packaged GaN transistors, developed to support power amplifier (PA) designers using a simulation-based design workflow. The library is available for Keysight Technologies’ PathWave Advanced Design System and Cadence AWR Design Environment.
While PA designers can use load-pull data to design PAs, load-pull measurements may not be available at the required frequencies. Also, load-pull data may not support optimization and analysis of the PA’s linear and nonlinear performance over frequency and output power. Fortunately, when designers don’t have load-pull, the models in the Modelithics Qorvo GaN Library enable quick PA design.
Each model in the library is developed through multiple precision measurements at test conditions tailored to the device. The models have features such as variable bias, temperature scaling, self-heating effects and intrinsic current-voltage (IV) sensing. For the die models, bond wire effects can be included or removed. Each model has a datasheet containing the measurement and test-fixture details and measurement validation, with comparisons between modeled and measured data.
Because of the intrinsic IV access in the models, designers can perform waveform and dynamic load-line simulations; waveform engineering enables PAs operating in advanced modes to be designed. The models help determine the optimal load and source impedance targets to achieve the linear and nonlinear performance goals for the design, which can quickly be performed at any frequency within the model’s validated frequency range. Designers can also simulate the maximum operating limits.
The Modelithics Qorvo GaN Library is available free for qualified customers.