Solid medium for filter and surface metallization process thereof, and dielectric filter

Abstract

The invention discloses a solid medium for a filter. The solid medium comprises a solid medium body and is characterized by further comprising a conductor structure arranged on the surface of the solid medium body, and the conductor structure at least comprises a first conductor metal layer for signal transmission and a second conductor metal layer for surface welding of a layer; the first conductor metal layer is located on the surface of the solid medium body; the second conductor metal layer is located on the surface of the first conductor metal layer; and the first conductor metal layer and the second conductor metal layer are conductor layers made of different metal materials. The invention further discloses a surface metallization process of the solid dielectric and a dielectric filter. According to the solid medium disclosed by the invention, by arranging a multi-conductor-layer structure, various metals can be replaced, the conductor layer actually used for signal transmissionis protected from being damaged while the cost is reduced, and the signal transmission performance of the solid medium is ensured.

Description

technical field

[0001] The invention relates to the technical field of communication, in particular to a solid medium used for a filter, its surface metallization process and a dielectric filter. Background technique

[0002] Wireless mobile communication base stations are an important physical support for modern communication systems. In order to filter or delete specific frequency signals in the communication process, each base station in the communication network is required to have strong signal processing capabilities to ensure that signal transmission does not appear to be distorted. Microwave filter is a key device for signal processing in base stations, and the improvement of its performance determines the improvement of communication quality and the development direction of communication technology. At present, the miniaturization of filters is one of the key technologies for the development of wireless communication base stations, and the solid dielectric body with...

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