CaTiO3-Ca (Al1 / 2Nb1 / 2) O3 System High Frequency Dielectric Ceramic Composition

摘要

The present invention relates to a composition comprising CaTiO₃-Ca (Al_1/2Nb_1/2) O₃The present invention relates to a low-loss dielectric ceramics composition for high-frequency use having CaTiO 3₃And CaTiO₃-Ca (Al_1/2Nb_1/2) O₃The present invention relates to a composition of a dielectric material having a good dielectric property and quality factor as well as a temperature coefficient of the resonance frequency of +/-10 ppm /;As the ceramic composition based on the dielectric composition developed in the prior art, there are many high-frequency dielectric ceramic compositions having a dielectric constant of less than 40 but a low dielectric loss, and compositions having a dielectric constant of 60 or more and a relatively large dielectric loss. However, And the dielectric loss is small, and the temperature coefficient of the resonance frequency is 10 ppm /C.;Therefore, in the present invention, CaTiO 3 having a dielectric constant of about 45, a temperature coefficient of resonance frequency of about 10 ppm /C,₃-Ca (Al_1/2Nb_1/2) O₃Based resin composition having excellent dielectric characteristics,₃Frequency dielectric ceramic composition having a dielectric composition whose dielectric loss is reduced and whose temperature coefficient of resonance frequency is close to zero.