Regulator for regulating frequency-temperature characteristics of microwave dielectric ceramics and low temperature co-fired ceramic material comprising the same

摘要

A microwave dielectric ceramic, including a main crystal phase having a chemical formula of BaSi_xO_2x+1, where 1.56≤x≤1.85. A regulator for regulating frequency-temperature characteristics of microwave dielectric ceramics is also provided. The dielectric constant of the microwave dielectric ceramic is smaller than 8, the temperature coefficient of resonate frequency of the microwave dielectric ceramic is positive, and the microwave dielectric ceramic is anti-reductive. A low temperature co-fired ceramic material includes a main crystal phase, the regulator, and a sintering additive. The main crystal phase of the low temperature co-fired ceramic material includes barium, aluminum, silicon, and oxygen.