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Microwave dielectric ceramic material as well as preparation method and application thereof
The invention belongs to the field of new materials and microwave communication, and particularly relates to a microwave dielectric ceramic material as well as a preparation method and application thereof. The principal crystalline phase of the microwave medium ceramic material adopts the structure of xCaTiO3-(1-x)ReAO3; Re refers to at least one of La, Ns and Sm, and A refers to at least one of Al and Ga; x is less than or equal to 1 and is greater than or equal to 0; the microwave dielectric ceramic material further comprises a modified additive. According to the invention, the microwave dielectric ceramic material is prepared through steps of compounding, sanding, presintering and adding the modified additive, sanding, pelletizating, pressing for formation and sintering. The material has the characteristics of low cost and excellent microwave dielectric property, is high in electric inductivity, high in Q, has a frequency temperature coefficient close to zero temperature excursion and is continuously adjustable in accessories within a certain range, and can be used for manufacturing microwave components such as dielectric resonators, all-dielectric filters, cavity filters, antennas and the like in a communication system.
Microwave dielectric ceramic material as well as preparation method and application thereof
The invention belongs to the field of new materials and microwave communication, and particularly relates to a microwave dielectric ceramic material as well as a preparation method and application thereof. The principal crystalline phase of the microwave medium ceramic material adopts the structure of xCaTiO3-(1-x)ReAO3; Re refers to at least one of La, Ns and Sm, and A refers to at least one of Al and Ga; x is less than or equal to 1 and is greater than or equal to 0; the microwave dielectric ceramic material further comprises a modified additive. According to the invention, the microwave dielectric ceramic material is prepared through steps of compounding, sanding, presintering and adding the modified additive, sanding, pelletizating, pressing for formation and sintering. The material has the characteristics of low cost and excellent microwave dielectric property, is high in electric inductivity, high in Q, has a frequency temperature coefficient close to zero temperature excursion and is continuously adjustable in accessories within a certain range, and can be used for manufacturing microwave components such as dielectric resonators, all-dielectric filters, cavity filters, antennas and the like in a communication system.
Microwave dielectric ceramic material as well as preparation method and application thereof
LYU KAIMING (author) / YIN WANG (author) / MA CAIBING (author) / CEN YUANQING (author)
2015-10-28
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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