RF filters and multiplexers with resonator decouplers
US5428325A · kind A · utility
25Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1993 |
| Grant date | Jun 27, 1995 |
| Priority date | — |
| Expiry date | Dec 10, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/205
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An RF filter having a housing defining a cavity with plural elongated resonators and plural resonator decouplers adjacent each of plural pairs of the resonators in the housing. The decouplers are grounded adjacent each of their ends only to the housing to provide an enhanced resonator decoupling effect. The filter may instead comprise a dielectric block with resonator holes and resonator decoupler holes each appropriately metalized with the decoupler holes being grounded at each end at external metalized block surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.