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Resonance tube

A resonant tube and storage space technology, applied in the field of resonant tubes, can solve the problems of inconvenient welding, limited cavity space, easy occurrence of solder joints and burrs, etc.

Active Publication Date: 2012-10-17
ANHUI TATFOOK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the resonance tube usually has a flange, and the space of the cavity is limited, it is not convenient for welding; even if the resonance tube does not have a flange, after the resonance tube is welded to the cavity, it is easy to appear Solder joints and burrs have a great influence on the frequency selective performance of the cavity filter

Method used

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Experimental program
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Embodiment Construction

[0019] The resonant tube provided by the present invention is used to be installed on a cavity filter, and the cavity filter includes a cavity, and a plurality of cavities are arranged on the cavity. A plurality of installation platforms are arranged on the cavity, and the plurality of installation platforms are accommodated in the cavity and located at the center of the bottom of the cavity. A storage space is provided on the resonance tube, and the storage space is used to accommodate the mounting platform on the cavity, and a plurality of wire teeth are provided on the inner side wall of the resonance tube forming the storage space, so that the An interference fit is formed between the resonant tube and the installation platform, so that the resonant tube is fixed on the cavity and accommodated in the cavity. The resonant tube does not need to be matched with the cavity through additional screws, which not only saves production costs, but also saves time for installing the...

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Abstract

The invention relates to the technical field of microwave communication, in particular to a resonance tube. The resonance tube is installed on a cavity filter. The cavity filter comprises a cavity, wherein the cavity is provided with a mounting platform. The resonance tube comprises a body, wherein the body comprises a first end and a second end; the first end is concave towards the second end toform a tuning space; the second end is concave towards the first end to form a containing space; the internal side wall of the second end forming the containing space is provided with a plurality of involute teeth along the direction from the first end to the second end; the involute teeth protrude outside the internal side wall; after the mounting platform is contained in the containing space, the resonance tube and the mounting platform are in interference fit; and the body is processed in a cold upsetting mode.

Description

technical field [0001] The invention relates to the technical field of microwave communication, in particular to a resonance tube. Background technique [0002] As a frequency selection device, filters are widely used in the field of communication, especially in the field of radio frequency communication. In the base station where the communication system completes signal transmission and reception, the filter is used to select the communication signal and filter out the clutter or interference signal outside the frequency of the communication signal. [0003] At present, in mobile communication base station systems, cavity filters are commonly used to select frequencies for signals transmitted and received by antennas. The cavity filter includes a cavity body and a cover plate, and a plurality of cavities are arranged on the cavity body. A resonant tube is accommodated in each cavity, and the resonant tube is combined with the cavity. [0004] The resonant tube is usuall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/207
Inventor 孙尚传童恩东吴纯虎
Owner ANHUI TATFOOK TECH CO LTD