| 摘要 |
PURPOSE: Provided is a low loss and high frequency dielectric composition which shows excellent physical properties and has improved sintering property and dielectric property, so that it is applicable to various dielectric substances including materials of duplexer for cellular phone. CONSTITUTION: The low loss and high frequency dielectric composition is represented by BaO-xTiO2-yWO3, wherein x is greater than or equal to 3.5 and smaller than or equal to5.0 and y is smaller than or equal to 0.1 as mole ratio. In the dielectric composition, less than 0.1 mol of at least one additive selected from the group consisting of ZrO2, SnO2, ZnO, MnO2, Nb2O5, Al2O3, SrCO3, MgO and NiO are contained.
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