Microwave dielectric ceramic composition
AssigneeKorea Institute of Science and Technology
InventorsKyung Y. Kim, Jung R. Yun, Suk K. Hong, Kwang H. Chang
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Abstract
A microwave dielectric ceramic composition exhibiting superior high frequency characteristics, particular temperature coefficients suitable for materials for cellular phones, which composition comprises approximately 0.1 to approximately 0.3 mole fraction of CaTiO.sub.3 having a negative temperature coefficient and approximately 0.9 to approximately 0.7 mole fraction of (Li.sub.1/2 Nd.sub.1/2)TiO.sub.3 having a positive temperature coefficient, and optionally a predetermined amount of an additive, preferably Nd.sub.2 O.sub.3, Li.sub.2 CO.sub.3, Na.sub.2 CO.sub.3 and CeO.sub.2.
Claims9
A microwave dielectric ceramic composition, comprising approximately 0.1 to approximately 0.3 mole fraction of CaTiO.sub.3 having a negative temperature coefficient and approximately 0.9 to approximately 0.7 mole fraction of (Li.sub.1/2 Nd.sub.1/2)TiO.sub.3 having a positive temperature coefficient.
Dependencies are inferred from the claim text.