H03F 2203/21139
An impedance adaptation circuit being added at the output of a power
Official title: An impedance adaptation circuit being added at the output of a power amplifier stage
H03F2203/21139 (An impedance adaptation circuit being added at the output of a power) appears on 217 US grants and 223 published applications in this corpus.
Search patents in H03F- Granted patents
- 217
- Published applications
- 223
- Assignees
- 99
- Inventors
- 408
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 4 |
| 2008 | 2 | 6 |
| 2009 | 4 | 5 |
| 2010 | 10 | 9 |
| 2011 | 11 | 19 |
| 2012 | 11 | 11 |
| 2013 | 13 | 5 |
| 2014 | 8 | 10 |
| 2015 | 9 | 23 |
| 2016 | 23 | 28 |
| 2017 | 23 | 14 |
| 2018 | 20 | 18 |
| 2019 | 19 | 18 |
| 2020 | 19 | 22 |
| 2021 | 19 | 9 |
| 2022 | 12 | 5 |
| 2023 | 2 | 6 |
| 2024 | 7 | 4 |
| 2025 | 3 | 2 |
| 2026 | 0 | 2 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Multiple-mode RF power amplifiers25 Nov 2025US 12,483,196 B2NXP USA, Inc.
- Output array for RF performance improvement26 Aug 2025US 12,401,381 B2Huawei Technologies Co., Ltd.
- Radio-frequency module and communication apparatus24 Jun 2025US 12,341,548 B2Murata Manufacturing Co., Ltd.
- Broadband, high-efficiency, non-modulating power amplifier architecture5 Nov 2024US 12,136,901 B2MACOM Technology Solutions Holdings, Inc.
- Transistor with ohmic contacts8 Oct 2024US 12,113,114 B2Wolfspeed, Inc.
- Dual-drive high-efficiency wide-band compact doherty power amplifier17 Sep 2026US 2026/0280490 A1EMTAR Technologies Inc.
- System, method and apparatus for supporting multi-mode amplifier for multiple wireless communication protocols18 Jun 2026US 2026/0171981 A1Silicon Laboratories Inc.
- Power amplifier system18 Sep 2025US 2025/0293650 A1Etra Semiconductor (Suzhou) Co., Ltd.
- Pseudo-doherty load modulated balanced amplifier15 May 2025US 2025/0158573 A1Ampleon Netherlands B.V.
- Inverted doherty-type amplifier device31 Oct 2024US 2024/0364271 A1Infineon Technologies AG
Most cited
By later US patents
- RFIC with high power PA138US 7,853,234 B2Broadcom Corporation · 2010
- Apparatus and method for enabled switch detection133US 8,008,970 B1Skyworks Solutions, Inc. · 2011
- Systems and methods for power amplifiers with voltage boosting multi-primary transformers102US 7,880,547 B2Georgia Tech Research Corporation · 2011
- Method and apparatus to match output impedance of combined outphasing power amplifiers82US 7,030,714 B2Intel Corporation · 2006
- Solid-state RF power amplifier for radio transmitters74US 8,031,003 B22011