Implementing method for preventing signals of coaxial filter from leaking and signal processing device

Abstract

The invention discloses an implementing method for preventing signals of coaxial filter from leaking. In the method, a device of box-shaped structure is arranged and comprises an external box-shaped structure, a cover board structure, a filter and a multi-section box-shaped structure; the filter is arranged in the internal cavity of the box-shaped structure and forms a signal channel with the box-shaped structure; a clapboard is arranged in the box-shaped structure to partition the internal cavity of the box-shaped structure into a plurality of blocking rooms; a concave groove is arranged on the contact face between the upper surface of the clapboard and the cover board; one end of the box-shaped structure is provided with a signal receiving port and the other end thereof is provided with at least two signal outputting ports, and the ports are in conducting connection with the box-shaped structure; an external transmission signal is transmitted into the box-shaped structure via the signal receiving port and transmitted to the signal outputting ports after the box-shaped structure and the filter induce with each other. And the invention also discloses a signal processing device for implementing the method.

Description

technical field [0001] The invention relates to the technical field of mobile communication and electronic technology, in particular to a method for realizing the prevention of signal leakage of a coaxial filter, and more particularly to a signal processing device for realizing the method. Background technique [0002] With the development of wireless technology, integration and miniaturization have become a development trend of communication equipment. Because the coaxial cavity filter forms a sealed system by fastening the cover plate of the cavity with screws. Insufficient mechanical machining accuracy of the cavity, and after several disassembly of the entire seal of the filter, the cavity shell and cover plate are deformed, and the sealing system is damaged, resulting in filter signal leakage and affecting the suppression between the duplexer transceiver channels The degree of isolation and the isolation between the combined channels of the combiner will destroy the pe...

AI Technical Summary

Problems solved by technology

Insufficient mechanical machining accuracy of the cavity, and after several disassembly of the entire seal of the filter, the cavity shell and cover plate are deformed, and the sealing system is damaged, resulting in filter signal leakage and affecting the suppression between the duplexer transceiver channels The degree of isolation and the isolation between the combined channels of the combiner will destroy the performance of the filter, duplexer and combiner, resulting in the scrapping of products in batches, which will bring great losses to the enterprise

There are three existing methods to solve the signal leakage of the filter: one is to increase the flatness and roughness of the contact surface between the cavity and the cover plate; the other is to increase the hardness of the cavity and cover plate materials; the third is to increase the cavity and cover plate The number of fastening screws; the above method and related equipment equipped with it bring inconvenience to machining and installation, and the cost is relatively high

[0003] In summary, the existing methods for solving the signal leakage of coaxial cavity filters cannot adapt to the development of modern wireless communication technology and cannot meet the needs of modern electronic communication technology

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