Patent ID: 8942760
Filing Date: 2015-01-27
Classification: H03F,H04B

Abstract:
1. A combined power amplifier and low noise amplifier device comprising: a plurality of transistors connected to one another and configured to operate in a first mode as a power amplifier for a first signal to be transmitted by said device, and further configured to operate in a second mode as a low noise amplifier for a second signal, which has been received by said device, said plurality of transistors including a first subset of transistors and a second subset of transistors, wherein in said first mode said first subset of transistors and said second subset of transistors are configured to be turned on to operate together to amplify said first signal, while said first subset of transistors conduct said first signal in a first direction, a transistor among said first subset of transistors operating as a cascode, and wherein in said second mode said first subset of transistors are configured to be turned on with a low-noise attenuation polarity opposite to a power-amplifier polarity that said first subset of transistors has during said first mode, to operate as said low noise amplifier while said second subset of transistors are configured to be turned off, said first subset of transistors conducting said second signal in a second direction opposite to said first direction.