Dielectric combine cavity filter having ceramic resonator rods suspended by polymer wedge mounting structures
US7777598B2 · kind B2 · utility
5Cited by
10References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 14, 2008 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | May 3, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/2084
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A combline filter has a ceramic resonator disposed inside at least one cavity wall. Because the resonator is implemented as a hollow rod, a tuning element may be inserted into an opening on the top of the rod to tune its frequency. A mounting element, inserted into an opening on the bottom of the rod secures its position inside a cavity resonator. Instead of soldering the resonator to the filter's walls, the resonator is supported above a bottom or side wall of the cavity resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.