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Mounting screw connection type cavity filter

A cavity filter and mounting screw technology, which is applied to waveguide devices, electrical components, circuits, etc., can solve problems such as low production efficiency, inconsistent filter performance, and unreasonable filter structure design, so as to improve production efficiency, Shorten the processing process and ensure the effect of product size/shape tolerance

Pending Publication Date: 2019-03-22
TONGYU COMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The purpose of the present invention is to solve the problem of unreasonable structural design of existing filters, resulting in low production efficiency, and inconsistent filter performance due to process restrictions, and to provide a screw-connected cavity filter

Method used

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  • Mounting screw connection type cavity filter
  • Mounting screw connection type cavity filter
  • Mounting screw connection type cavity filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] As shown in the figure, the specific implementation method is as follows:

[0043] A screw-connected cavity filter, including a die-cast cavity 60 with one end open and a sealing cover 20, a number of weight-reducing grooves 6001 are processed on the outer wall of the cavity 60, and six intervals are fixed on the sealing cover 20 The resonant plate 40 set and connected to each other, the resonant plate 40 and the sealing cover plate 20 are integrally formed by die-casting, the inner cavity of the cavity 60 is divided into six interconnected resonant cavities by radial bars, one of the outer walls of the cavity There are two rows of thirteen adjustment screws 1 for adjusting filter parameters, and the thirteen adjustment screws 1 are divided into six frequency adjustment screws located at the end of the resonator plate and seven bandwidth adjustment screws located at the end of the resonator plate close to the sealing cover One end of the adjustment screw 1 penetrates th...

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Abstract

The invention relates to a mounting screw connection type cavity filter. The mounting screw connection type cavity filter includes a cavity and a sealing cover plate, wherein one end of the cavity isopened and the cavity is molded through die-cast; a plurality of spaced and interconnected resonance pieces are fixed on the sealing cover plate; the resonance pieces and the sealing cover plate are integrally die-cast structures; one of the outer side walls of the cavity is provided with a pair of pin mounting holes penetrating through the side wall of the cavity; a pin medium is inserted in theeach pin mounting hole, and a mounting screw is disposed in the each pin medium, and one end of the mounting screw is located outside the cavity to facilitate connection with an antenna; and one end,of the mounting screw, penetrating the resonance piece is screwed on the resonance piece. The mounting screw connection type cavity filter changes the disassembling mode of a traditional filter that the upper and lower disassembling structure is modified to be a left and right side drawing structure, and adopts an integrated design of the resonance pieces and the cover plate, thus simplifying thestructure of the boss and the like which need to be welded during the installation of the resonance pieces, and reducing the number of internal parts, optimizing the assembling mode, and improving theproduction efficiency. At the same time, the mounting screw connection type cavity filter cancels the traditional welding form and can be reused by using mounting screws.

Description

technical field [0001] The invention relates to the field of microwave and millimeter wave communications, in particular to a screw-connected cavity filter. Background technique [0002] The filter is a typical frequency selection device, which can effectively suppress unwanted signals so that they cannot pass through the filter, and only useful signals pass through the filter smoothly. Therefore, the performance of the filter directly affects the quality of the entire communication system , is a crucial device in modern microwave and millimeter wave communication systems. [0003] Cavity filter is a very important filter. Compared with filters of other properties, it has firm structure, stable and reliable performance, small size, moderate Q value, far high-end parasitic passband and good heat dissipation performance. It can be used in larger power and frequency. [0004] The first solution - cavity filter, the coupling structure generally adopts a rod-shaped resonant rod...

Claims

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Application Information

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IPC IPC(8): H01P1/208
CPCH01P1/208
Inventor 方锋明彭蛟成钢高小鹏
Owner TONGYU COMM INC
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