Low temp, sintered bismuth base microwave medium ceramic material and preparation process thereof

Abstract

The invention discloses a low temperature sintering bismuth based microwave medium ceramic material. The expression of the material is Bi(Nb1-xVx)O4, of which 0.001<=x<=0.064. Traditional solid phase synthesis compounding technology is adopted, and the sintering temperature range is between 810 degree centigrade and 980 degree centigrade. The material has low sintering temperature, suitable dielectric constant, and simple manufacturing structure. It could be used to make LTCC, multilayer medium resonator, microwave antenna, filter, etc.

Description

technical field

[0001] The invention belongs to the field of electronic ceramics and its manufacture, in particular to a bismuth-based microwave dielectric ceramic material sintered at low temperature and its preparation. Background technique

[0002] With the development of mobile communication, portability requirements are put forward for the communication equipment system, and the whole system is moving towards integration, in order to obtain products with small size, light weight, high reliability and low cost. In the process of microwave circuit integration, the emergence of metal waveguides and microwave tubes has enabled microwave circuits to be integrated and miniaturized to a certain extent, but the bulky and bulky metal resonators traditionally used have made it difficult to integrate microstrip circuits. Ceramics (microwave dielectric ceramics, MWDC) make resonators but provide a way out for this. Microwave dielectric ceramics have a high die...