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DIELECTRIC CERAMIC AND DIELECTRIC FILTER PROVIDED WITH SAME
There are provided a dielectric ceramic having a high Qf value in a relative permittivity µr range of 35 to 45, and a small absolute value of a temperature coefficient Äf which indicates change of the resonant frequency in a wide temperature range from a low temperature range to a high temperature range, and a dielectric filter having the dielectric ceramic. A dielectric ceramic includes: a main component, molar ratios ±, ², and ³ satisfying expressions of 0.240 ¤ ± ¤ 0.470, 0.040 ¤ ² ¤ 0.200, 0.400 ¤ ³ ¤ 0.650, and ± + ² + ³ = 1 when a composition formula of the main component is represented as ±ZrO 2 ·²SnO 2 ·³TiO 2 ; and Mn, a content of Mn in terms of MnO 2 being greater than or equal to 0.01% by mass and less than 0.1% by mass with respect to 100% by mass of the main component.
DIELECTRIC CERAMIC AND DIELECTRIC FILTER PROVIDED WITH SAME
There are provided a dielectric ceramic having a high Qf value in a relative permittivity µr range of 35 to 45, and a small absolute value of a temperature coefficient Äf which indicates change of the resonant frequency in a wide temperature range from a low temperature range to a high temperature range, and a dielectric filter having the dielectric ceramic. A dielectric ceramic includes: a main component, molar ratios ±, ², and ³ satisfying expressions of 0.240 ¤ ± ¤ 0.470, 0.040 ¤ ² ¤ 0.200, 0.400 ¤ ³ ¤ 0.650, and ± + ² + ³ = 1 when a composition formula of the main component is represented as ±ZrO 2 ·²SnO 2 ·³TiO 2 ; and Mn, a content of Mn in terms of MnO 2 being greater than or equal to 0.01% by mass and less than 0.1% by mass with respect to 100% by mass of the main component.
DIELECTRIC CERAMIC AND DIELECTRIC FILTER PROVIDED WITH SAME
DIELEKTRISCHE KERAMIK UND DIELEKTRISCHER FILTER DAMIT
CÉRAMIQUE DIÉLECTRIQUE ET FILTRE DIÉLECTRIQUE POURVU DE CETTE CÉRAMIQUE
KOMATSU TSUYOSHI (author) / TOYODA SATOSHI (author) / TAKENOSHITA HIDEHIRO (author)
2016-11-23
Patent
Electronic Resource
English
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