Patents
US 12719446 B2: Negative capacitance tuning in an acoustic filter circuit
- Granted
- 2026-08-25
- Filed
- 2024-07-16 application 18773973
- Type
- Utility · 19 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Negative capacitance tuning in an acoustic filter circuit is provided. The acoustic filter circuit includes a tunable negative capacitance circuit that is coupled between an input node and an output node. The tunable negative capacitance circuit can be tuned according to embodiments of the present disclosure to present multiple negative capacitances, each of which is configured to cancel an electrical capacitance at a respective one of multiple operating frequencies. Herein, the electrical capacitance may be caused by an acoustic resonator coupled in parallel to the tunable negative capacitance circuit and May compromise the performance of the acoustic filter circuit at those operating frequencies. By tuning, either statically or dynamically, the negative capacitances between the input node and the output node, it is possible to cancel the electrical capacitance in order to improve the performance of the acoustic filter circuit across a broader operating frequency range.
Source: PTBLXML, file of 2026-08-25 (ipgb20260825.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Qorvo US, Inc. 1,491 patents | US company or organization | Greensboro, NC | QORVO US, INC. Federal lobbying client EXACT high confidence: identical full name and state | PTBLXML, file of 2026-08-25 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Nadim Khlat | Cugnaux, FR | 514 | PTBLXML, file of 2026-08-25 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H03H | Impedance networks, e.g. resonant circuits; resonators | H03H9/542 | PTBLXML, file of 2026-08-25 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
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.