Microwave dielectric ceramic composition having high quality factor
US6790800B2 · kind B2 · utility
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Key dates
| Filing date | Dec 19, 2002 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Dec 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/0306
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a dielectric ceramic composition represented by (1−x) (Mg1/3Ta2/3)O2-xZrO2(0<x≦0.2) that has high dielectric constants, high quality factor (Q) values, and stable temperature coefficients of the resonant frequency. The composition can easily achieve a high quality factor (Q) value by sintering for a lesser duration and at lower temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.