LOW-NOISE AMPLIFIER (LNA) INPUT IMPEDANCE IMPROVEMENT USING COUPLING BETWEEN OUTPUT INDUCTOR AND DEGENERATION INDUCTOR
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United States of America
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Mar 20, 2025
app pub date -
Sep 19, 2023
filing date -
Sep 19, 2023
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Abstract
A low-noise amplifier (LNA) includes a first transistor, a first source inductor coupled to a source of the first transistor, and a second transistor, wherein a source of the second transistor is coupled to a drain of the first transistor, a gate of the second transistor is coupled to a bias circuit, and a drain of the second transistor is coupled to an output of the LNA. The LNA also includes an output inductor coupled between a supply rail and the output of the LNA, wherein the output inductor is magnetically coupled with the first source inductor.
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