Dielectric ceramics for high frequency

Details Dielectric ceramics for high frequency Dielectric ceramics for high frequency

1989-12-20

1991-03-26

Group, Karl

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

501135, G04B 3546

Patent

active

050029134

ABSTRACT:
A dielectric ceramics for high frequencies having its dielectric constant of as high as 80 and a sufficiently high Q value (1/dielectric loss) of 1,000 or above, even in a micro-wave region, which is a compound having a structure of Sr.sub.3 Ti.sub.2 O.sub.7, and being represented by the following general formula: Sr.sub.3(1-x) Ca.sub.3x Ti.sub.2 O.sub.7 (where: 0.1<x.ltoreq.0.55).

REFERENCES:
patent: 4859641 (1989-08-01), Fujino et al.
patent: 4900702 (1990-02-01), Tsuboi et al.

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