Low noise amplifier and mixer
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United States of America Patent
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May 14, 2013
Grant Date -
Dec 2, 2010
app pub date -
Aug 31, 2009
filing date -
May 27, 2009
priority date (Note) -
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Abstract
A low noise amplifier (LNA) system with controllable linearity and noise figure versus power consumption is provided. The system comprises two control inputs for tuning. One input controls an effective transistor width, and the other input controls bias current. Changes to the effective transistor width alter a gain that is applied to a signal, and changes to the bias current alter a power consumption of the system. For more stringent signal specifications, an impedance matched inductive degeneration variation of the LNA is provided.
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