LOW-NOISE AMPLIFIER WITH SEGMENTED CORE AND TUNABLE RESISTIVE FEEDBACK
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United States of America Patent
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Issued Date -
Sep 12, 2024
app pub date -
Feb 21, 2024
filing date -
Mar 9, 2023
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Abstract
Embodiments of a low noise amplifier (LNA) device and methods of operating the same are disclosed. In some embodiments, the LNA device includes an LNA input node, an LNA amplification core coupled to the LNA input node, and an LNA amplification core that includes LNA amplification segments. Each of the LNA amplification segments are configured to amplify the RF signal and are configured to be activated and deactivated. The LNA amplification core is configured to activate and deactivate the LNA amplification segments in accordance with the LNA core control input. A tunable feedback impedance is coupled between the LNA input node and the LNA amplification core. The tunable feedback impedance has a variable impedance that is set in accordance with the LNA core control input. The LNA amplification segments and the tunable feedback impedance are operated in a manner that optimizes KPIs depending on the input RF signal.
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