Frequency filter and its manufacturing process
US7332988B2 · kind B2 · utility
1Cited by
2References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2005 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | Jun 21, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P11/007
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a frequency filter including a structure with, on one face, two extreme evanescent areas and at least one wave guide area between the evanescent areas. The at least one wave guide area and the evanescent areas form a single closed cavity. The single cavity is partitioned by at least two resonator elements that are embedded in the single cavity at placement areas and that contribute to delimiting the at least one wave guide area and the evanescent areas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.