| abstract |
A dielectric porcelain composition includes MgTiO 3 and Mg 2 SiO 4 and satisfies a+b=1 and 0<b<1, wherein a denotes a molar ratio of MgTiO 3 and b denotes a molar ratio of Mg 2 SiO 4 . It can include MgTiO 3 and CaTiO 3 and satisfy a+c=1 and 0<c≦0.15, wherein a has the same meaning as shown above and c denotes a molar ratio of CaTiO 3 . It can also include MgTiO 3 , Mg 2 SiO 4 and CaTiO 3 and satisfy a+b+c=1, 0<b<1 and 0<c≦0.15, wherein a, b and c have the same meanings as shown above. These compositions can be manufactured, with the content of Mg 2 SiO 4 , the content of CatiO 3 and the contents of Mg 2 SiO 4 and CaTiO 3 adjusted, respectively. These compositions can be used as dielectric materials to manufacture dielectric resonators. |