The substitution type barium titanate and barium titanate strontium it is strong the dielectric composition

摘要

(57) Abstract This invention has formula Ba_{1-xLn xTi1-xM xO3}, when in formula, Ln is La, when M is Fe or Cr, Ln is Sm, M is Fe, x from approximately 0.02 approximately is up to 0.06. New La, Fe, La, Cr and Sm of 3 kinds, the Fe substitution type barium titanate solid solution strongly the dielectric composition and those blends and formula (Ba_{1-ySr y}) it possesses _{1-xLa xTi1-xFe xO3}, in formula, y zero is under the exceeding and approximately 0.6, and x from approximately 0.01 approximately is up to 0.06. New La, the Fe substitution type barium titanate strontium solid solution strongly the dielectric composition and formula (Ba_{1-ySr y}) _{1-xLa xTi1-x/4-3a/4Al a (x-a)/it} possesses ₄ O₃, with the conditionality that, vacancy is displayed, in formula, x is larger than a, or is equal to that, y zero is under the exceeding and approximately 0.6, a from approximately 0.01 approximately is up to 0.06, and x new La which is, the Al substitution type barium titanate strontium solid solution offers with the dielectric composition strongly from 0.02 up to approximately 0.10. These low loss tuner bulls strongly the dielectric composition, especially is useful in the interdigital and 3 layer capacitor and kopurena guided wave road and tuner bull microwave thin film device which is classified into three types of microstrip.