Patents
US 9294042 B2: Power amplifier system with supply modulation mitigation circuitry and methods
- Granted
- 2016-03-22
- Filed
- 2014-03-17 application 14216051
- Type
- Utility · 28 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A power amplifier system with supply modulation mitigation circuitry and methods is disclosed. The power amplifier system includes a regulator having an unregulated input and a regulated output along with a power amplifier having a supply input for receiving a supply current from the regulated output and having a signal input and a signal output that comprise a main signal path. The supply modulation mitigation circuitry is adapted to sense a supply modulation signal output from the regulator, generate a cancellation signal that is a scaled inverse of the supply modulation signal, and inject the cancellation signal into a node within the power amplifier system to sum the supply modulation signal and cancellation signal together to reduce the supply modulation signal from within the main signal path.
Source: PVGPATDIS, file of 2026-04-10 (ipg160322.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 |
|---|---|---|---|---|
| Baker Scott | San Jose, CA | 251 | PVGPATDIS, file of 2026-04-10 | |
| George Maxim | Saratoga, CA | 296 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H03F | Amplifiers | H03F1/30 | 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 |
| 2015-09-11 | Assignment Assignment of assignor's interest | MAXIM, GEORGE signed 2014-04-25 SCOTT, BAKER signed 2014-06-25 | RF MICRO DEVICES (CAYMAN ISLANDS), LTD. GRAND CAYMAN | 36540/88 | 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.