Radio frequency front end with tunable filters
US12003263B2 · kind B2 · utility
3Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2021 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Feb 7, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/1072
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Aspects of this disclosure relate to a radio frequency system with tunable notch filtering. The radio frequency system includes a first tunable filter and a second tunable filter. The first tunable filter is coupled between an output of a power amplifier and a radio frequency switch. The second tunable filter is coupled between an antenna switch and an antenna node. The second tunable filter has a notch at a lower frequency than a notch of the first tunable filter. Related methods and wireless communication devices are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.