Filter circuit, filter, method of manufacturing filter, and electronic device
US12341484B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 26, 2022 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Jul 26, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/38
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A filter circuit includes a first resonant sub-circuit, a second resonant sub-circuit and an impedance matching network; the first resonant sub-circuit and the second resonant sub-circuit are each connected to the impedance matching network in series; the first resonant sub-circuit is configured to allow a signal with a frequency higher than a first frequency to pass; the second resonant sub-circuit is configured to allow a signal with a frequency lower than a second frequency to pass, and the second frequency is greater than the first frequency; the impedance matching network is configured to allow a signal between the first frequency and the second frequency to pass; the impedance matching network includes a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor and a first inductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.