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Cavity filter and combiner

A cavity filter and meshing technology, which is applied in the field of communication, can solve the problem that the cavity filter cannot adjust the working frequency band, etc., and achieve the effect of improving application flexibility and flexible adjustment

Active Publication Date: 2013-01-02
SHANGHAI HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of studying the prior art, the inventor found that in actual application scenarios, there are situations where the combiner needs to work in different operating frequency bands, and the cavity filter in the prior art cannot adjust its operating frequency band, so the combined Routers are usually designed to work in a fixed frequency band and cannot be flexibly applied in these scenarios

Method used

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  • Cavity filter and combiner
  • Cavity filter and combiner
  • Cavity filter and combiner

Examples

Experimental program
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no. 1 example

[0034] The combiner provided by the embodiment of the present invention may include at least four cavity filters, the number of resonant cavities in each cavity filter can be designed according to needs, and the above-mentioned at least four cavity filters are connected in parallel, The structure of each cavity filter may be the same as that of the first embodiment of the cavity filter, the second embodiment of the cavity filter, or the third embodiment of the cavity filter, and will not be repeated here. In addition, the four cavity filters may have different adjustment structures, and a specific example is given below for description.

[0035] see Figure 4 , Figure 4 It is a schematic diagram of the first embodiment of the combiner provided by the present invention.

[0036] The combiner provided in the embodiment of the present invention includes four cavity filters, the four cavity filters are connected in parallel, and the four cavity filters include the first cavity ...

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Abstract

The invention discloses a cavity filter and a combiner. The cavity filter comprises a resonant cavity, a resonant inner conductor, a tuning rod, a medium block and a regulating mechanism, wherein the resonant cavity is surrounded by a resonant outer conductor; the resonant inner conductor is positioned in the resonant cavity; the regulating mechanism is positioned outside the resonant cavity; the medium block is positioned in the resonant cavity; the first end of the tuning rod is connected with the medium block, and the second end of the tuning rod passes through the resonant outer conductor and is connected with the regulating mechanism; and the regulating mechanism is operationally matched with the tuning rod to enable the tuning rod to rotate along a central axis of the tuning rod or move back and forth along the radial direction of the tuning rod. The cavity filter provided by the embodiment of invention can flexibly regulate the working frequency bands of the cavity filter and can improve the application flexibility of the cavity filter in special scenes.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a cavity filter and a combiner composed of the cavity filter. Background technique [0002] A combiner is needed in the communication network. The combiner plays the role of combining or splitting the signals of the two systems. The uplink and downlink signals of the two systems can pass through a feeder after being combined by the combiner. The channel is transmitted to the antenna, thereby reducing the number of feeder channels and saving the cost of feeder construction. [0003] A combiner in the prior art is usually implemented by a cavity filter, and there is a certain guard band (Guard Band) between the cavity filter units, and each cavity filter can be designed and debugged independently. When signals of two different frequency bands need to be combined, the guard band of the combiner is the bandwidth between the signals of two different frequency bands. [0004] I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/207H01P1/208H01P1/213
Inventor 马国田李清
Owner SHANGHAI HUAWEI TECH CO LTD