Monoblock RF resonator/filter having a conductive transmission line connecting regions of conductive material
US7619496B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 24, 2007 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Oct 24, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10666
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A resonator/filter adapted for direct surface mounting to the surface of a printed circuit board. The resonator/filter comprises a block of dielectric material including at least one resonator through-hole extending therethrough and respective top, bottom and side surfaces defining respective regions of dielectric material covered with conductive material. The top block surface defines at least a first conductive region. A second conductive region on the bottom surface of the block defines an input/output contact which allows the filter to be mounted on the board with the bottom filter surface seated thereon, thus providing a direct ground contact between the board and the resonator through-hole for improved attenuation performance particularly at higher frequencies. A plurality of transmission line embodiments electrically interconnect the first and second conductive regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.