Shield for dielectric filter and dielectric filter equipped with the same
US6734764B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2002 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Mar 28, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/2056
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A shield that can prevent the thickness of a dielectric filter from increasing without increasing the manufacturing cost of the dielectric filter is disclosed. The shield of the present invention is to be attached to a dielectric filter and has a first plate, a second plate elongated from the first end of the first plate in a predetermined direction, a third plate elongated from the second end of the first plate opposite to the first end in the predetermined direction, and a projecting part projecting from the first plate at a portion between the first and second ends of the first plate. Since the shield can be fixed to the dielectric filter by pinching the both side of the dielectric block and the projecting part can be in contact with the metallization of the dielectric filter, the total thickness of the dielectric filter does not increase even the shield is attached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.