Resonator filters with wide stopbands
US5220300A · kind A · utility
33Cited by
6References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1992 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Apr 15, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/2084
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system for coupling two resonating cavities, where the coupling system provides a form of bandpass or bandstop filtering about the desired frequency mode and helps suppress undesired modes about the desired frequency mode and higher order modes. The system for coupling the two resonating cavities includes a tuned evanescent iris, where the tunability of the iris is provided by at least one tunable resonating capacitance element embedded in the iris.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.