Dielectric ceramic compositions and dielectric resonators
US5470808A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1994 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Oct 17, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P7/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides a dielectric ceramic including as the main component a complex oxide formed of both Zr and Ti, at least one component selected from the group (A) consisting of {Mg, Co, Zn, Ni and Mn} and at least one component selected from the group (B) consisting of {Nb and Ta} and a TE.sub.01 .delta.-mode dielectric resonator including the dielectric ceramic, and also the invention provides a dielectric ceramic composition expressed by Formula (a): EQU xZrO.sub.2 --yTiO.sub.2 --zA.sub.(1+w)/3 Nb.sub.(2-w)/3 O.sub.2Formula (a) wherein A denotes at least one component selected from the group (A) consisting of {Mg, Co, Zn, Ni and Mn}, x, y and z denote molar fractions ranging from 0.10 to 0.60, 0.20 to 0.60 and 0.01 to 0.70, respectively, and have the relation represented by Formula (a): EQU x+y+z=1 Formula (a) and w denotes a value of 0 to 1.50, and a TE.sub.01 .delta.-mode dielectric resonator in which using the dielectric ceramic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.