Hybrid input LNA RF frontend architecture
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United States of America
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Jan 7, 2025
Grant Date -
May 11, 2023
app pub date -
Nov 10, 2021
filing date -
Nov 10, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and devices for realizing RF processing paths associated to different frequency bands are presented. According to one aspect, the RF processing paths are provided by a hybrid input LNA RF frontend that includes RF processing paths that are dedicated to specific frequency bands and RF processing paths that are shared between several frequency bands. Sharing of the RF processing paths is provided by an input combiner network and/or a multi-input cascode amplifier that includes a cascode transistor that is coupled to at least two input transistors. Further presented in a toolkit that includes circuit blocks that can be used in specific combinations to customize the RF processing paths to achieve specific performance or cost optimization. A decision tree based on performance and cost priorities assigned to each of the frequency bands is used to provide the specific combinations.
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