Dielectric filter, method for preparing dielectric filter and communication equipment

Abstract

The invention provides a dielectric filter, a method for preparing the dielectric filter and communication equipment. The dielectric filter comprises a plurality of dielectric blocks and at least twofirst dielectric plates, the plurality of dielectric blocks are arranged at intervals, and the at least two first dielectric plates are sequentially arranged between two spatially adjacent dielectricblocks to form a main coupling path sequentially passing through the plurality of dielectric blocks, wherein the dielectric block and the first dielectric plate are integrally sintered and molded; andcompared with a mode of splicing and forming a plurality of dielectric blocks in the prior art, the method is advantageous in that a positioning process and a secondary sintering process required ina splicing process are cancelled, the process complexity is reduced, the structure is simple, the dielectric filter is suitable for mass production, the problem of low splicing precision of coupling windows of a plurality of dielectric blocks caused by size errors in the positioning process is eliminated, and the stability and consistency of the dielectric filter are improved.

Description

technical field [0001] The present application relates to the field of communication technologies, in particular to a dielectric filter applied to a 5G communication system, a method for preparing a dielectric filter, and communication equipment. Background technique [0002] With the rapid development of communication technology, the application of 5G communication technology is becoming more and more extensive. Filters are important components in 5G communication systems. Highly integrated, miniaturized, lightweight, and low-cost filters are an inevitable requirement of 5G communication technology. [0003] In the prior art, ceramic materials with high dielectric constants are generally used to form multiple resonant units, and then the surfaces of the multiple resonant units are metallized and then spliced ​​and positioned using positioning fixtures. Finally, the multiple resonant units are spliced ​​through the sintering process to To form the required filter, the proces...

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Problems solved by technology

[0004] This application mainly provides a dielectric filter, a method for preparing a dielectric filter and communication equipment, aiming to solve the problems of complex process and low dimensional accuracy of the dielectric filter formed by the splicing process

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