| 摘要 |
A dielectric porcelain composition according to the present invention is composed of a main component expressed in a general formula of xBaO.y((1-t)Nd2O3.tSm2O3).zTiO2, where 6<=x<=23, 13<=y<=30, 64<=z<=68, 0<=t<1 and x+y+z=100. The main component contains a sub component containing Cu oxide in the range of 0.1 to 3.0 wt % in terms of CuO and glass composition in the range of 2.0 to 10 wt %. Further, 90 wt % or more of the glass composition is at least one selected from SiO2, B2O3, MgO, BaO, SrO, ZnO and CaO, in the ranges of: 5 wt %<=SiO2<=15 wt %; 15 wt %<=B2O3<=25 wt %; 50 wt %<=(MgO+BaO+SrO+ZnO+CaO)<=80 wt %; 90 wt %<=(SiO2+B2O3+MgO+BaO+SrO+ZnO+CaO)<=100 wt %.
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