Source switched split LNA
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United States of America
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May 14, 2024
Grant Date -
Oct 28, 2021
app pub date -
May 7, 2021
filing date -
May 7, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A receiver front end amplifier capable of receiving and processing intraband non-contiguous carrier aggregate (CA) signals using multiple low noise amplifiers (LNAs) is disclosed herein. A cascode having a “common source” configured input FET and a “common gate” configured output FET can be turned on or off using the gate of the output FET. A first switch is provided that allows a connection to be either established or broken between the source terminal of the input FET of each LNA. Further switches used for switching degeneration inductors, gate capacitors, and gate to ground capacitors for each leg can be used to further improve the matching performance of the invention.
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