Source switched split LNA
US-12483194-B2 · Nov 25, 2025 · US
the bias or supply voltage or current of the source side of a FET amplifier being controlled to be on or off by a switch
the bias or supply voltage or current of the source side of a FET amplifier being controlled to be on or off by a switch · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03F2200/525 |
| Official title | the bias or supply voltage or current of the source side of a FET amplifier being controlled to be on or off by a switch |
| Display label | the bias or supply voltage or current of the source side of a FET amplifier being controlled to be on or off by a switch |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2017 | 4 |
| 2018 | 6 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Capacitor-based degeneration circuits
US-12463611-B2 · Nov 4, 2025 · US
Source Switched Split LNA
US-2024364269-A1 · Oct 31, 2024 · US
Source switched split LNA
US-11984855-B2 · May 14, 2024 · US
Internal transmit/receive switch with hardware reuse
US-2024080062-A1 · Mar 7, 2024 · US
Capacitor-based degeneration circuits
US-2024072750-A1 · Feb 29, 2024 · US
Adaptive degeneration circuits
US-11784620-B2 · Oct 10, 2023 · US
Amplifier circuit
US-11637532-B2 · Apr 25, 2023 · US
Adaptive degeneration circuits
US-2022255521-A1 · Aug 11, 2022 · US
Variable-gain amplifier with degeneration circuit
US-11245372-B2 · Feb 8, 2022 · US
Source Switched Split LNA
US-2021336584-A1 · Oct 28, 2021 · US
Amplifier circuit
US-2021226587-A1 · Jul 22, 2021 · US
Source switched split LNA
US-11005425-B2 · May 11, 2021 · US
Variable-gain amplifier with degeneration circuit
US-2021067121-A1 · Mar 4, 2021 · US
High-frequency amplifier circuitry and semiconductor device
US-10707823-B1 · Jul 7, 2020 · US
Source Switched Split LNA
US-2020144967-A1 · May 7, 2020 · US
Source switched split LNA
US-10491164-B2 · Nov 26, 2019 · US
Communications device with receiver chain of reduced size
US-10469124-B2 · Nov 5, 2019 · US
Dynamic amplifier and chip using the same
US-10454435-B2 · Oct 22, 2019 · US
Integrated circuit arrangement for a microphone, microphone system and method for adjusting one or more circuit parameters of the microphone system
US-10187027-B2 · Jan 22, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03F2200/525?
- CPC H03F2200/525 is the Cooperative Patent Classification code for “the bias or supply voltage or current of the source side of a FET amplifier being controlled to be on or off by a switch.”
- How many patents are filed under CPC H03F2200/525 (the bias or supply voltage or current of the source side of a FET amplifier being controlled to be on or off by a switch)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC H03F2200/525 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).