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

Active Publication Date: 2017-07-04
SHENZHEN WAVE TELECOMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because the thermal conductivity of plastic materials is worse than that of metals, the heat accumulated in the plastic cavity cannot be dissipated in time when the existing plastic filters work at high power, which will lead to higher and higher local temperatures and cause the product to fail

Method used

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  • Filter and filtering circuit
  • Filter and filtering circuit
  • Filter and filtering circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Please refer to figure 1 , this embodiment provides a filter 100, which can be used to effectively filter out a frequency point of a specific frequency or frequencies other than the frequency point, so as to obtain a signal of a specific frequency or a signal of a specific frequency after elimination.

[0032] Please refer to figure 2 , figure 2 is a sectional view of the A-A section of the filter 100 . The filter 100 includes a resonant rod 110 , a housing 130 , and a boss 150 . The resonant rod 110 is connected to the housing 130 through a boss 150 .

[0033] The casing 130 includes a casing inner wall 132 and a casing outer wall 134 oppositely disposed, and the casing inner wall 132 forms a cavity 136 . Both the boss 150 and the resonant rod 110 are installed in the cavity 136 .

[0034] In this embodiment, both the shell inner wall 132 and the shell outer wall 134 are provided with a heat conduction layer, and the heat conduction layer may be a commonly used ...

Embodiment 2

[0049] Please refer to image 3 , the present embodiment provides a filter 200, which is substantially the same as the filter 100 of Embodiment 1, the difference between the two is:

[0050] Please refer to Figure 4 , Figure 4 is a sectional view of the A-A section of the filter 200 . The filter 200 includes a resonant rod 110 , a housing 130 , and a boss 250 . The resonant rod 110 is connected to the housing 130 through a boss 250 .

[0051] The boss 250 includes a boss body 252 and a first heat pipe 254 . One end of the resonant rod 110 is connected to the boss body 252 , and the other end of the resonant rod 110 is spaced from the housing 130 by a certain distance. One end of the first heat pipe 254 passes through the boss body 252 and is connected to the resonant rod 110 . The other end of the first heat pipe 254 is connected to the casing 130 .

[0052] In this embodiment, the boss body 252 is preferably made of plastic to reduce the weight of the filter 200 . I...

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PUM

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/207
CPCH01P1/207
Inventor 陈超张少林孙昌盛李朋
Owner SHENZHEN WAVE TELECOMM TECH CO LTD
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