Temperature-stable microwave dielectric ceramic as well as preparation method and application thereof

A microwave dielectric ceramic and temperature-stable technology, applied in the field of microwave dielectric ceramics, can solve the problems of inability to meet the high requirements of microwave dielectric ceramic materials and poor temperature stability.
CN112778007AInactive Publication Date: 2021-05-11SUZHOU RF TOP ELECTRONICS COMM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU RF TOP ELECTRONICS COMM
Publication Date
2021-05-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a temperature-stable microwave dielectric ceramic, which is prepared by sintering a main material and an auxiliary material. The chemical structural formula of the main material is Mg2Al4Si5O18, the chemical structural formula of the auxiliary material is Zr0.6Sn0.4TiO4, and the chemical expression of the microwave dielectric ceramic is (100-x) wt% Mg2Al4Si5O18-x wt% Zr0.6Sn0.4TiO4, relative to the total amount of the main material and the auxiliary material, the mass percent of the auxiliary material is x wt%, and x is greater than or equal to 1 and less than or equal to 10. The invention also discloses a preparation method and application of the temperature-stable microwave dielectric ceramic. The microwave dielectric ceramic provided by the invention has excellent microwave dielectric properties, not only improves the quality factor to a certain extent, but also has better temperature stability at high temperature and low temperature, has a lower dielectric constant, and has wide application prospects.
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Description

technical field

[0001] The invention belongs to the technical field of microwave dielectric ceramics, in particular to a temperature-stable microwave dielectric ceramic and its preparation method and application. Background technique

[0002] Microwave dielectric ceramics is a new type of functional ceramics developed in recent decades, and it is the key material for manufacturing microwave dielectric resonators and filters. On the basis of the original microwave ferrite, its formula and manufacturing process have been greatly upgraded, so that it has excellent properties such as suitable electrical constant, low microwave loss, and small temperature coefficient, and is suitable for making various modern microwave ferrites. Devices, such as frequency stabilized oscillators, filters, duplexers, etc. in electronic countermeasures, navigation, communications, radar, household satellite direct TV receivers, and mobile phones, etc., can meet the miniaturization, integration, and ...

Claims

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