MEMS tunable filters
US6784766B2 · kind B2 · utility
37Cited by
14References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2002 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Oct 4, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/203
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for the design of tunable filters is disclosed. MEMS switches are used to alter the resonant frequency of one or more resonators. By tuning the resonant frequency of the resonators, the filter's characteristics also are tuned. Furthermore, MEMS switches are used to alter the input coupling, including direct input coupling and capacitive input coupling. Direct input coupling is altered by using the MEMS switches to select different input connection points. Capacitive input coupling is altered by using MEMS switches to add additional input capacitance to an input coupling capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.