Drain switched split amplifier with capacitor switching for noise figure and isolation improvement in split mode
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United States of America
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Feb 4, 2025
Grant Date -
Jun 6, 2024
app pub date -
Dec 8, 2023
filing date -
Dec 8, 2023
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An amplifier circuit configuration capable of processing non-contiguous intra-band carrier aggregate (CA) signals using amplifiers is disclosed herein. In some cases, each of a plurality of amplifiers is an amplifier configured as a cascode (i.e., a two-stage amplifier having two transistors, the first configured as a “common source” input transistor, e.g., input field effect transistor (FET), and the second configured in a “common gate” configuration as a cascode output transistor, (e.g. cascode output FET). In other embodiments, the amplifier may have additional transistors (i.e., more than two stages and/or stacked transistors). The amplifier circuit configuration can be operated in either single mode or split mode. A switchable coupling is placed between the drain of the input FETs of each amplifier within the amplifier circuit configuration. During split mode, the coupling is added to the circuit to allow some of the signal present at the drain of each input FET to be coupled to the drain of the other input FET.
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International Classification(s)
- 2023 Application Filing Year
- H04L Class
- 23385 Applications Filed
- 8023 Patents Issued To-Date
- 34.31 % Issued To-Date
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- H04L Class
- 0 % this patent is cited more than
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