| 摘要 |
The present invention provides a high-frequency dielectric ceramic composition having both high dielectric constant (∈r) and high Q value, and excellent temperature stability of the resonance frequency. The high-frequency dielectric ceramic composition contains a rare earth element (Ln), Mg, Ta, Ti and M (M is at least one of Ca and Sr) and has a composition represented by the composition formula aLnOx/2-bMgO-cTaO5/2-dMO-eTiO2, wherein a, b, c, d, e and x are mol % in the ranges of 0.100<=a<=0.350, 0.067<=b<=0.233, 0.033<=c<=0.117, 0.150<=d<=0.400, 0.150<=e<=0.400, a+b+c+d+e=1, and 3<=x<=4, respectively.
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