S. Rohlfing

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Power amplifiers are significant contributors to current consumption within mobile phones resulting in continued focus on design techniques to improve power amplifier efficiency. The techniques presented here use variable bias current and supply voltage, which allow enhanced efficiency at low power levels, and variable load impedance, which provides(More)
Variation in starting wafer material impacts yield and performance of linear power amplifiers for handset applications. This work presents a design of experiment approach for evaluating circuit sensitivities based on epi material variations that can be used for product qualification. This approach provides a systematic understanding of how the epi material(More)
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