Compositions of high frequency dielectrics

Compositions: ceramic – Ceramic compositions – Titanate – zirconate – stannate – niobate – or tantalate or...

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501135, C04B 35465

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active

055696325

ABSTRACT:
The present invention provides compositions of high frequency dielectric ceramics represented by the following formula:

REFERENCES:
patent: 4405473 (1983-09-01), Murase et al.
patent: 4545929 (1985-10-01), Masuyama et al.
J. Am. Ceram. Soc., 71 [1] C-11-C-17, 1988, S. Nishigaki, et al., "Ba0-Ti02-W03 Microwave Ceramics and Crystalline BaW04".
Hi-Tech Report, pp. 114-118, Sep. 1991, J. Kato, "Material Produces Small Resonators With High Dielectric Constant".
IEEE Cat., No. CH2358-0/86/0000-0118, pp. 118-121, 1986, K. Matsumoto, et al., "Ba(Mg1/3Ta2/3)03 Ceramics With Ultra-Low Loss at Microwave Frequencies".
Journal of the American Ceramic Society, vol. 67, No. 4, pp. 278-281, 1984, K. Wakino, et al., "Microwave Characteristics of (Zr,Sn)Ti04 and Ba0-Pb0-Nd203-Ti02 Dielectric Resonators".
J. Am. Ceram. Soc., vol. 73, No. 6, pp. 1599-1605, 1990, Jenn-Ming WU, et al., "Reaction Sequence and Effects of Calcination and Sintering on Microwave Properties of [Ba,Sr]0-Sm203-Ti02 Ceramics".

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