Coupled-resonator on-die filters for WiFi applications
US9853620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2014 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Dec 10, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/1791
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A radio frequency (RF) filter circuit for rejecting one or more spurious components of an input signal has a first resonator circuit including a first capacitor and a first coupled inductor pair of a first inductor and a second inductor, and a second resonator circuit with a second capacitor and a second coupled inductor pair of a third inductor and a fourth inductor. First and second resonator coupling capacitors are connected to the first resonator circuit and the second resonator circuit. A first port and a second port are connected to the first resonator circuit and the second resonator, with the filtered signal of the input signal passed through both the first resonator circuit and the second resonator circuit being output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.