Dielectric material coaxial resonator filter directly mountable on a circuit board
US4673902A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1984 |
| Grant date | Jun 16, 1987 |
| Priority date | — |
| Expiry date | Nov 15, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/2056
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A dielectric material coaxial resonator which includes at least one dielectric material block member having a through-opening axially formed in it in one direction, an inner conductive layer formed on an inner peripheral surface of the through-opening, an outer conductive layer formed on an outer wall surface of the dielectric material block member, an open end face which is provided on at least one end face of the dielectric material block member where the through-opening is opened and at which an outer surface of the dielectric material block member is exposed, and capacitor electrodes formed on the open end face so as to constitute a single resonator unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.