Filter and filtering circuit

A technology of filters and heat pipes, applied in circuits, waveguide devices, electrical components, etc., can solve problems such as product failure, poor thermal conductivity, and high local temperature, and achieve overall weight reduction, strong heat dissipation, and stable working properties Effect
CN106921013AActive Publication Date: 2017-07-04SHENZHEN WAVE TELECOMM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN WAVE TELECOMM TECH CO LTD
Publication Date
2017-07-04

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Abstract

The invention provides a filter and a filtering circuit, and belongs to the technical field of communication. The filter comprises a housing, a resonance rod and a boss. The resonance rod and the boss are arranged on the housing to form a cavity. The boss comprises a boss body and a first heat conducting pipe. The resonance rod is connected with the boss body. The first heat conducting pipe penetrates through the boss body. One end of the first heat conducting pipe is connected with the resonance rod. The other end of the first heat conducting pipe is connected with the housing. The housing and the boss body are made of low intensity materials like plastic, so the whole weight of the filter is reduced. The first heat conducting pipe is capable of quickly and timely transferring mass heat energy generated by the resonance rod to the housing, thereby accelerating heat dissipation efficiency of the resonance rod, and improving work stability of the resonance rod. The invention also provides the filtering circuit comprising the filter.
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Description

technical field

[0001] The present invention relates to the technical field of communications, in particular to a filter and a filter circuit. Background technique

[0002] As competition in the communications systems industry continues to intensify and human resource costs continue to rise, cost pressures are mounting. With the development of microwave technology, the demand for cavity microwave devices such as duplexers, filters, and combiners is also increasing. At this stage, most cavity devices are metal structures, which are heavy and difficult to meet the current requirements. Plastic filters of new materials are getting more and more attention because of their relatively light weight and reliable performance relative to metals.

[0003] Since the thermal conductivity of plastic materials is worse than that of metal, the heat accumulated in the plastic cavity cannot be dissipated in time when the existing plastic filters are working at high power, which will cause t...

Claims

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