Electronically tunable combline filters tuned by tunable dielectric capacitors
US6801104B2 · kind B2 · utility
37Cited by
55References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2001 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Aug 17, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/2053
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A voltage-controlled tunable filter includes at least two cavity resonators electrically coupled to each other. A voltage tunable dielectric capacitor is positioned within each of the resonators. Connections are provided for applying a control voltage to the voltage tunable dielectric capacitors. An input is coupled to the one of the resonators, and an output is coupled to the other resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.