Patents
US 8749309 B2: Gate-based output power level control power amplifier
- Granted
- 2014-06-10
- Filed
- 2011-12-02 application 13310544
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A gate power control technique for a power amplifier (PA) provides practical improved efficiency at backed-off power levels. It can be applied to the main gate of the output stage of the PA, the cascode gate, or any combination thereof. Both voltage mode and current mode signal processing may be used. The gate power control can be implemented in both open-loop and closed-loop using AC and DC coupled drivers and output stages. It may further use one or more control ports in the radio frequency (RF) signal path.
Source: PVGPATDIS, file of 2026-04-10 (ipg140610.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| RF Micro Devices (Cayman Islands), Ltd. 10 patents | Foreign company or organization | George Town, KY | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Daniel Ho | Palo Alto, CA | 6 | PVGPATDIS, file of 2026-04-10 | |
| Stephen James Franck | Felton, CA | 19 | PVGPATDIS, file of 2026-04-10 | |
| Ying Shi | Sunnyvale, CA | 85 | PVGPATDIS, file of 2026-04-10 | |
| Baker Scott | San Jose, CA | 251 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H03G | Control of amplification | H03G3/3042 | PVGPATDIS, file of 2026-04-10 |
| H03F | Amplifiers | H03F1/0233 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2016-06-14 | Name change Change of name | TRIQUINT INTERNATIONAL PTE. LTD. signed 2016-05-02 | QORVO INTERNATIONAL PTE. LTD. AVENUE 1, #04-01 | 38991/899 | ECORSEXC, file of 2026-09-25 |
| 2016-05-06 | Assignment Assignment of assignor's interest | RF MICRO DEVICES (CAYMAN ISLANDS), LTD. signed 2016-05-02 | TRIQUINT INTERNATIONAL PTE. LTD. AVENUE 1, #04-01 | 38485/869 | ECORSEXC, file of 2026-09-25 |
| 2012-11-29 | Assignment Assignment of assignor's interest | AMALFI SEMICONDUCTOR, INC. signed 2012-11-08 | RF MICRO DEVICES (CAYMAN ISLANDS), LTD. GREENSBORO, NC | 29375/148 | ECORSEXC, file of 2026-09-25 |
| 2012-06-21 | Assignment Assignment of assignor's interest | FRANCK, STEPHEN signed 2011-11-28 HO, DANIEL signed 2011-11-28 SCOTT, BAKER signed 2011-11-29 SHI, YING signed 2011-11-29 | AMALFI SEMICONDUCTOR, INC. LOS GATOS, CA | 28421/461 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.