Metal dielectric composite resonator
US6476693B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Nov 22, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P7/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A composite resonator (10) consisting of a conducting metal (14) and a dielectric material (12) is used to provide resonant frequencies lower than can be obtained using the same volume of dielectric alone and with higher unloaded Q than can be obtained using the same volume of metal imbedded into a cavity and used as a resonator. This significantly reduces the cost and size of the resonator (10) without degrading its performance. An inexpensive metal (14), such as aluminum, can be substituted for more than half of the dielectric (12) and stille form a resonator (10) with substantially equivalent resonant properties. The operative embodiments of the resonator invention (1) cover composites with doughnut-shaped, i.e., cylindrical, configurations, with the “doughnut” either metal (14) or dielectric (12), and the “hole” either dielectric (314) or metal (312), respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.