DIELECTRIC CERAMIC COMPOSITION AND DIELECTRIC CERAMIC

摘要

A dielectric ceramic that in the miniaturization of microwave dielectric material, enables stable control of, in the region of high frequency, such as micro wave or extremely-high frequency wave, specific inductive capacity er and Qf and further temperature coefficient of resonance frequency tf, and exhibits a dielectric constant whose change depending on temperature is slight, and has a high mechanical strength. There is provided a dielectric ceramic having a fundamental ingredient composition of the structural formula of {A<sub