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Envelope Tracking (ET) power amplifiers (PA) have been developed for next generation mobile handsets and tablets to improve efficiency. The ET PA provides improved system efficiency at the highest output power levels but does require performance trade-offs which must be considered. This paper will discuss the ET system performance, compare PA technologies and will provide some of the system performance...
Multimode multiband (MMMB) power amplifiers (PA) have been developed for next generation mobile handsets and tablets to increase band coverage while reducing the per band cost and size. Designers face challenges in maintaining power added efficiency while increasing PA bandwidth and linearity. This paper will discuss the motivations that drive MMMB PA development and some of the challenges and considerations...
Multimode multiband (MMMB) power amplifiers (PA) have been developed for next generation mobile handsets and tablets to increase band coverage while reducing the per band cost and size. Designers face challenges in maintaining power added efficiency while increasing PA bandwidth and linearity. This paper will discuss the motivations that drive MMMB PA development and some of the challenges and considerations...
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