| 摘要 |
A dielectric ceramic composition which can be sintered at such a temperature of about 800 to 1000° C. as to permit incorporation of and multilayer formation with a low resistant conductor such as Ag or Cu by the simultaneous sintering with the low resistant conductor, which is sintered to form dielectric ceramics having a dielectric constant ∈<SUB>r </SUB>of not more than 10, and a resonator having a large Qxf<SUB>0 </SUB>value and an absolute value in temperature coefficient tau<SUB>f </SUB>of resonance frequency f<SUB>0 </SUB>of not more than 20 ppm/° C., the value being easy to be controlled. The dielectric ceramic composition contains a glass component in an amount of 5 to 150 parts by weight based on 100 parts by weight of a main component represented by general formula: aZnAl<SUB>2</SUB>O<SUB>4</SUB>-bZn<SUB>2</SUB>SiO<SUB>4</SUB>-cTiO<SUB>2</SUB>-dZn<SUB>2</SUB>TiO<SUB>4</SUB>, in which the molar fractions of respective components a, b, c, and d satisfy 5.0<=a<=80.0 mol % 5.0<=b<=70.0 mol %, 5.0<=c<=27.5 mol %, 0<=d<=30.0 mol % (a+b+c+d=100 mol %).
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