05378663 is referenced by 7 patents and cites 23 patents.

A dielectric ceramic composition is disclosed which includes: a main ceramic composition of barium oxide and titanium oxide, or barium oxide, titanium oxide and at least one of strontium oxide, calcium oxide, zirconia and zinc oxide, which composition is represented by (1-a-b)BaO.multidot.aSrO.multidot.bCaO.multidot.x[(1-c)TiO.sub.2 .multidot.cZrO.sub.2 ].multidot.yZnO, where 3.1.ltoreq.x .ltoreq.5.4, 0.ltoreq.y.ltoreq.2.9, 0.ltoreq.a+b.ltoreq.0.4, 0.ltoreq.c.ltoreq.0.2; and a secondary component at least a part of which consists of a B.sub.2 O.sub.3 material or a glass material containing B.sub.2 O.sub.3 as one of glass components, the secondary component being added to the main ceramic composition, in an amount of 0.1-7.5 parts by weight of B.sub.2 O.sub.3 per 100 parts by weight of the main ceramic composition. Also disclosed are a method of preparing such a dielectric ceramic composition, a dielectric resonator for microwave application which uses the dielectric ceramic composition, or a dielectric filter having a plurality of such dielectric resonators, and a method of producing the dielectric resonator or dielectric filter.

Title
Method of preparing a dielectric ceramic composition for producing a dielectric resonator or filter for microwave applications
Application Number
971179
Publication Number
5378663
Application Date
March 2, 1994
Publication Date
January 3, 1995
Inventor
Shinsuke Yano
Nagoya
JP
Tsutomu Nanataki
Nagoya
JP
Tatsumi Sugiura
Nagoya
JP
Masahiro Abe
Nagoya
JP
Agent
Parkhurst Wendel & Rossi
Assignee
NGK Insulators
JP
IPC
C03C 14/00
C04B 35/46
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