Radio frequency system with tunable notch filters
US12362776B2 · kind B2 · utility
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12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2023 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Jun 8, 2043 |
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 includes mutually coupled inductors and a tunable impedance circuit electrically connected to at least one of the mutually coupled inductors. The second tunable filter is coupled between an antenna switch and an antenna node. Related methods and wireless communication devices are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.