Three-dimensional electromagnetic Particle-in-Cell (3D EM-PIC) codes offer an advantage in the process of RF amplifier design since they are capable of highly-accurate, device-independent simulation and prediction of the amplifier's performance and physical characteristics. Achieving the desired amplifier performance generally requires optimization of device's geometry and operating parameters with respect to a specific set of criteria. The RF amplifier design cycle typically involves many simulations with varying parameters that are carried out until such criteria are met. Traditionally, the computational intensity and prohibitively long runtimes of 3D EM-PIC codes have limited their practical application to the case of manually controlled parametric optimization of RF amplifiers.
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