Tunable filter with mutually coupled inductors
US12199651B2 · kind B2 · utility
1Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2021 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Aug 11, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/1027
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Aspects of this disclosure relate to a tunable filter with tunable rejection. The tunable filter includes mutually coupled inductors and a tunable impedance circuit electrically connected to at least one of the mutually coupled inductors. The tunable impedance circuit is configured to adjust at least two notches in a frequency response of the tunable filter by changing a state of a switch. The tunable filter can filter a radio frequency signal. Related methods, radio frequency systems, radio frequency modules, and wireless communication devices are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.