Dielectric ceramic composition for high frequency use

Details Dielectric ceramic composition for high frequency use Dielectric ceramic composition for high frequency use

1991-04-26

1993-03-30

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

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

C04B 3546

Patent

active

051983958

ABSTRACT:
A dielectric ceramic composition having a composition (mole %) expressed by the formula xMgO.yLa.sub.2 O.sub.3. xTiO.sub.2 wherein x, y and z are numerals that lie within a range surrounded by a line that couples the points a, b, c, d and e in FIG. 1. The composition can contain 0.01 to 3% by weight of MnO.sub.2 with respect to chief components consisting of the above three components. The composition can be effectively used as a resonator or a circuit board in the microwave frequency region.

REFERENCES:
patent: 4362637 (1982-12-01), Matsuo et al.
patent: 4468471 (1981-08-01), Koshima et al.
patent: 4670409 (1987-06-01), Okawa et al.
patent: 5086021 (1992-02-01), Sasaki et al.
Sears, et al, University Physics p. 447, 1950.

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