CN202275899U - Coupling adjusting structure of medium filter - Google Patents
Coupling adjusting structure of medium filter Download PDFInfo
- Publication number
- CN202275899U CN202275899U CN 201120389439 CN201120389439U CN202275899U CN 202275899 U CN202275899 U CN 202275899U CN 201120389439 CN201120389439 CN 201120389439 CN 201120389439 U CN201120389439 U CN 201120389439U CN 202275899 U CN202275899 U CN 202275899U
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- coupling
- resonator
- dielectric
- dielectric filter
- adjustment structure
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- 230000008878 coupling Effects 0.000 title claims abstract description 66
- 238000010168 coupling process Methods 0.000 title claims abstract description 66
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 66
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 32
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a coupling adjusting structure of a medium filter. The medium filter comprises a coaxial resonator and a medium resonator, and the coaxial resonator and the medium resonator are communicated with one another via a communication structure; a coupling part is arranged in a communication cavity of the medium filter, the medium filter is also equipped with a coupling amount adjusting component located at the communication position of the coaxial resonator and the medium resonator, and better still, the coupling amount adjusting component is a metal rod of which the length is adjustable. Therefore, by adjusting the metal rod, the coupling amount of the medium filter can be adjusted well, and the echo debugging can be controlled effectively, thereby making the debugging of the medium filter be simpler and more convenient.
Description
Technical field
The utility model relates to filter coupled technology, relates in particular to a kind of coupling adjustment structure of dielectric filter.
Background technology
In decades in the past, the dielectric filter technology is developed rapidly, because it has advantages such as little, the in light weight and low-loss of volume, dielectric filter is widely used in the microwave communication field.Wherein, common in the prior art with the main mould of TE01 mould as dielectric filter.
Because resonator material and effect on structure, electromagnetic field is the TEM mould at the distribution form of metal coaxial resonator, and its higher mode frequency generally is three times of main mould.Compare with the metal coaxial resonator, dielectric resonator higher mode frequency and main mould are more approaching, need consider how to suppress its nearly parasitic passband when therefore designing and realize client's index request.Existing technical scheme is through one road coupling coaxial cavity filter of connecting, and the parasitic passband that utilizes coupling coaxial cavity filter to suppress dielectric filter realizes under the situation of structure and shape size abundance, obvious effects being arranged.Another kind of scheme is to the structure and shape size when inadequate; Indivedual dielectric resonators are replaced with the coaxial cavity resonator; Because the pattern of two kinds of resonator electromagnetic fields is different; Be difficult to reach accurately coupling between them, and also trouble comparatively of the debugging of coupling, this directly influences the feasibility that product lot quantity is produced.
Can know that to sum up the coupling adjustment structure of existing dielectric filter obviously exists inconvenience and defective, so be necessary to improve on reality is used.
The utility model content
To above-mentioned defective, the purpose of the utility model is to provide a kind of coupling adjustment structure of dielectric filter, and it makes the debugging of dielectric filter more simple and convenient.
To achieve these goals; The utility model provides a kind of coupling adjustment structure of dielectric filter; Said dielectric filter comprises coaxial resonator and dielectric resonator, and said coaxial resonator and dielectric resonator are interconnected through connectivity structure, is provided with coupling part in the connection cavity of said dielectric filter; And said dielectric filter is provided with a coupling amount and regulates parts, and said coupling amount adjustment structure is positioned at the position that is communicated with of said coaxial resonator and dielectric resonator.
According to the coupling adjustment structure of the dielectric filter of the utility model, said dielectric filter has a cover plate, and said coupling amount is regulated parts and is installed on said cover plate.
According to the coupling adjustment structure of the dielectric filter of the utility model, it is length-adjustable metallic rod that said coupling amount is regulated parts.
According to the coupling adjustment structure of the dielectric filter of the utility model, said coupling part is a metal wire, and said metal wire one end is fixed in the cavity bottom of said coaxial resonator, and the other end places in the said cavity with dielectric resonator.
Coupling adjustment structure according to the dielectric filter of the utility model has a metal resonance spare in the cavity of said coaxial resonator, have a dielectric resonance spare in the cavity of said dielectric resonator.
According to the coupling adjustment structure of the dielectric filter of the utility model, a said metal wire part is " L " type structure, the curved structure of another part of said metal wire.
According to the coupling adjustment structure of the dielectric filter of the utility model, the cavity bottom of said coaxial resonator is fixed with a jump ring, and an end of said metal wire is welded in said jump ring.
According to the coupling adjustment structure of the dielectric filter of the utility model, said metal wire is electrically connected short circuit with the cavity bottom of said coaxial resonator.
The utility model is communicated with its coaxial resonator and dielectric resonator through connectivity structure is set on dielectric filter, in the connection cavity of the two, coupling part is set simultaneously, and the two can be of coupled connections.Simultaneously; The connection position of coaxial resonator and dielectric resonator is provided with a coupling amount and regulates parts; These adjusting parts preferably adopt the metallic rod of adjustable-length; Promptly can regulate the coupling amount between coaxial resonator and the dielectric resonator through regulating the length of metallic rod in cavity, make the debugging of dielectric filter easier to be reliable whereby.
Description of drawings
Fig. 1 is the structural representation of the dielectric filter of the utility model.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Referring to Fig. 1, the utility model provides a kind of coupling adjustment structure of dielectric filter, and dielectric filter 100 comprises coaxial resonator 10 and dielectric resonator 20; Has window type connectivity structure 30 between the two; And through this connectivity structure 30, coaxial resonator 10 is interconnected with dielectric resonator 20, and the dielectric resonator in the present embodiment 20 is a TE10 mould dielectric resonator; The top of dielectric filter 100 has a cover plate (not shown); This cover plate is provided with a coupling amount and regulates parts 40, and these parts preferably adopt metallic rod, and it can regulate length; Thereby regulate its length in the cavity of dielectric filter 100, thereby can regulate the coupling amount of coaxial resonator 10 and dielectric resonator 20.
Concrete; Coaxial resonator 10 has first resonant cavity 11; Be provided with a metal resonance spare 12 in this first resonant cavity 11; Dielectric resonator 20 has second resonant cavity 21, establishes a dielectric resonance spare 22 in this second resonant cavity 21, and metal resonance spare 12 all is column structure with dielectric resonance spare 22.Be provided with a coupling part 50 in the cavity of the connection of dielectric filter 100, this coupling part 50 is metal wires, and an end of this metal wire is fixed in first resonant cavity 11, and the other end is located in second resonant cavity 21.Preferably, the outside of the interior metal resonance spare 12 of first resonant cavity 11 is provided with a hexagonal jump ring 13, and an end of metal wire is welded in this hexagonal jump ring 13, and this metal wire forms the short circuit relation that is electrically connected with the bottom of first resonant cavity 11.
Among one embodiment of the utility model; The metal wire that constitutes coupling part 50 is by being bent into two parts; A part sees from the side and presents " L " shape that another part is the arc that is any radian, and the arch section of metal wire is positioned at the outside of second resonant cavity, 21 dielectric resonance spares 22; Coupling part 50 with the direction of the axially parallel of the first resonance spare 12 on part, be positioned at the outside of first resonant cavity, 11 first resonance spares 12.
In the practical application; Position relation between the inner various parts of dielectric filter 100 can influence the coupling amount of coaxial resonator 10 and dielectric resonator 20, and concrete influencing factor comprises: 1) two parts of coupling part 50 respectively with the distance of the first resonance spare 12 and the second resonance spare 22; 2) coupling amount regulate parts 40 outside dimension, its in being communicated with cavity length and with the distance of coupling part 50; 3) length and the length of arch section of coupling part 50 on the first resonance spare, 12 axial directions.In addition, one deck silver layer is all plated on metal wire and metallic rod surface, can effectively regulate the coupling amount by regulating the length of coupling amount adjusting parts 40 in being communicated with cavity, makes the adjusting of dielectric filter 100 coupling amounts simple and convenient.
The concrete installation process of the utility model is following:
Earlier metal resonance spare 12 and dielectric resonance spare 22 are installed on corresponding cavity position; Then the hexagonal jump ring is fixed on first resonant cavity, 11 bottoms with screw thread; The corresponding end of the coupling part 50 (metal wire) of forming is in advance sticked on the clamp spring hole; Adjust the distance of metal wire and dielectric resonance spare 22, be fixed on metal wire on the jump ring, cover at last and install the cover plate that the coupling amount is regulated parts 40 (metallic rod of adjustable-length) with the mode of welding.In actual debug process, can not meet the demands if find coupling, then change wire-shaped again and get final product, also can draw wire-shaped and size through emulation.
In sum, the utility model is communicated with its coaxial resonator and dielectric resonator through connectivity structure is set on dielectric filter, in the connection cavity of the two, coupling part is set simultaneously, and the two can be of coupled connections.Simultaneously; The connection position of coaxial resonator and dielectric resonator is provided with a coupling amount and regulates parts; These adjusting parts preferably adopt the metallic rod of adjustable-length; Promptly can regulate the coupling amount between coaxial resonator and the dielectric resonator through regulating the length of metallic rod in cavity, make the debugging of dielectric filter easier to be reliable whereby.
Certainly; The utility model also can have other various embodiments; Under the situation that does not deviate from the utility model spirit and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (8)
1. the coupling adjustment structure of a dielectric filter; Said dielectric filter comprises coaxial resonator and dielectric resonator; It is characterized in that said coaxial resonator and dielectric resonator are interconnected through connectivity structure, be provided with coupling part in the connection cavity of said dielectric filter; And said dielectric filter is provided with a coupling amount and regulates parts, and said coupling amount adjustment structure is positioned at the position that is communicated with of said coaxial resonator and dielectric resonator.
2. the coupling adjustment structure of dielectric filter according to claim 1 is characterized in that, said dielectric filter has a cover plate, and said coupling amount is regulated parts and is installed on said cover plate.
3. the coupling adjustment structure of dielectric filter according to claim 1 is characterized in that, it is length-adjustable metallic rod that said coupling amount is regulated parts.
4. the coupling adjustment structure of dielectric filter according to claim 1 is characterized in that, said coupling part is a metal wire, and said metal wire one end is fixed in the cavity bottom of said coaxial resonator, and the other end places in the said cavity with dielectric resonator.
5. the coupling adjustment structure of dielectric filter according to claim 1 is characterized in that, has a metal resonance spare in the cavity of said coaxial resonator, has a dielectric resonance spare in the cavity of said dielectric resonator.
6. the coupling adjustment structure of dielectric filter according to claim 4 is characterized in that, a said metal wire part is " L " type structure, the curved structure of another part of said metal wire.
7. the coupling adjustment structure of dielectric filter according to claim 4 is characterized in that, the cavity bottom of said coaxial resonator is fixed with a jump ring, and an end of said metal wire is welded in said jump ring.
8. the coupling adjustment structure of dielectric filter according to claim 7 is characterized in that, said metal wire is electrically connected short circuit with the cavity bottom of said coaxial resonator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120389439 CN202275899U (en) | 2011-10-13 | 2011-10-13 | Coupling adjusting structure of medium filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120389439 CN202275899U (en) | 2011-10-13 | 2011-10-13 | Coupling adjusting structure of medium filter |
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| Publication Number | Publication Date |
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| CN202275899U true CN202275899U (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201120389439 Expired - Fee Related CN202275899U (en) | 2011-10-13 | 2011-10-13 | Coupling adjusting structure of medium filter |
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| CN (1) | CN202275899U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104681897A (en) * | 2013-11-27 | 2015-06-03 | 凯镭思通讯设备（上海）有限公司 | Input and output coupling structure for transverse magnetic (TM) mode dielectric filter |
| CN107611537A (en) * | 2017-10-19 | 2018-01-19 | 苏州灿勤通讯技术有限公司 | It can adjust the dielectric resonator of coupling and the dielectric filter that metal resonators are mashed up |
| CN108598635A (en) * | 2013-05-31 | 2018-09-28 | 华为技术有限公司 | Dielectric filter, transceiver and base station |
| CN111384499A (en) * | 2018-12-29 | 2020-07-07 | 深圳市大富科技股份有限公司 | Filter, duplexer and communication equipment |
-
2011
- 2011-10-13 CN CN 201120389439 patent/CN202275899U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108598635A (en) * | 2013-05-31 | 2018-09-28 | 华为技术有限公司 | Dielectric filter, transceiver and base station |
| US10700401B2 (en) | 2013-05-31 | 2020-06-30 | Huawei Technologies Co., Ltd. | Filter and communication device comprising dielectric resonators having frequency adjusting holes and negative coupling holes of greater depth |
| CN108598635B (en) * | 2013-05-31 | 2020-07-03 | 华为技术有限公司 | Dielectric filter, transceiver and base station |
| US11444647B2 (en) | 2013-05-31 | 2022-09-13 | Huawei Technologies Co., Ltd. | Filter and transceiver comprising dielectric body resonators having frequency adjusting holes and a negative coupling hole |
| CN104681897A (en) * | 2013-11-27 | 2015-06-03 | 凯镭思通讯设备（上海）有限公司 | Input and output coupling structure for transverse magnetic (TM) mode dielectric filter |
| CN107611537A (en) * | 2017-10-19 | 2018-01-19 | 苏州灿勤通讯技术有限公司 | It can adjust the dielectric resonator of coupling and the dielectric filter that metal resonators are mashed up |
| CN111384499A (en) * | 2018-12-29 | 2020-07-07 | 深圳市大富科技股份有限公司 | Filter, duplexer and communication equipment |
| CN111384499B (en) * | 2018-12-29 | 2022-04-22 | 深圳市大富科技股份有限公司 | Filter, duplexer and communication equipment |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20161013 |