Low temperature sintering high-dielectric constant microwave-medium ceramics material and preparation method thereof

A technology of microwave dielectric ceramics and high dielectric constant, applied in the field of low-temperature sintered high-permittivity microwave dielectric ceramic materials and its preparation, low-temperature sintered O3 series high-permittivity microwave dielectric ceramic materials and their preparation fields, can solve Q× F value reduction and other issues, to achieve good reproducibility, facilitate mass production and application promotion, and reduce the effect of preparation costs
CN101381230BActive Publication Date: 2011-10-05ZHEJIANG UNIV
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2011-10-05
Patent Text Reader

Abstract

The invention discloses a low temperature sintered high dielectric constant microwave dielectric ceramic material. The component of the microwave dielectric ceramic material is [(1-x)(Ca0.61Nd0.26)(Ti1-ySny)O3+x(Li1 / 2 Nd1 / 2)TiO3]+a(H3BO3-CuO)+b Li2CO3, wherein x is more than or equal to zero and less than or equal to 0.7, y is more than or equal to zero and less than or equal to 0.1, a is more than zero and less than or equal to 15 percent, b is more than or equal to zero or less than or equal to 5 percent, and a and b represent, respectively, the weight percent of H3BO3-CuO and weigh percent of Li2CO3 against the weight of [(1-x)(Ca0.61Nd0.26)(Ti1-ySny)O3+x(Li1 / 2 Nd 1 / 2)TiO3]. The invention also discloses a method for preparing the ceramic material. By adding a small amount of low melting point sintering assistant, the method reduces the sintering temperature to between 850 and 1,100 DEG C and maintains excellent microwave dielectric property and, therefore, meets the requirement for cofiring with low cost Ag electrodes. The method can be used to manufacture multilayer dielectric resonators, microwave antennae, filters and other microwave elements and greatly reduce the manufacture costs of the microwave elements.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a low-temperature sintered high-permittivity microwave dielectric ceramic material and a preparation method thereof, especially a low-temperature sintered (Ca 0.61 Nd 0.26 )(Ti,Sn)O 3 The invention relates to a high dielectric constant microwave dielectric ceramic material and a preparation method thereof, belonging to the field of electronic ceramics and its manufacture. Background technique

[0002] Low temperature co-fired ceramics (Low Temperature Co-fired Ceramics, LTCC) technology is a component integration technology that has emerged in recent years, and has become the first choice for miniaturization, integration, modularization and low cost of various microwave devices in circuits. It is widely used in military and civilian communication fields. Microwave dielectric ceramics are the key materials of LTCC technology. Among them, high dielectric constant microwave dielectric ceramics are mainly used in resonators and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More