Integrated filters in output match elements
US10020793B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 21, 2015 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Feb 3, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2007/013
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Certain aspects of the present disclosure provide an integrated impedance matching and filtering circuit. One example circuit generally includes an impedance matching circuit having a first inductor and a resonant circuit having a resonant frequency and comprising a second inductor magnetically coupled to the first inductor. The resonant circuit is configured to filter out the resonant frequency from the impedance matching circuit. In certain aspects, the resonant circuit may further include a capacitor. The second inductor may include a ring of metal having a gap, and the capacitor may comprise a dielectric material between ends of the ring surrounding the gap. For other aspects, the capacitor may be an integrated circuit element, having a fixed or variable value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.