CN101847767B - Band elimination filter, manufacturing method of band elimination filter and filtering device - Google Patents
Band elimination filter, manufacturing method of band elimination filter and filtering device Download PDFInfo
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- CN101847767B CN101847767B CN 201010190097 CN201010190097A CN101847767B CN 101847767 B CN101847767 B CN 101847767B CN 201010190097 CN201010190097 CN 201010190097 CN 201010190097 A CN201010190097 A CN 201010190097A CN 101847767 B CN101847767 B CN 101847767B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 230000008030 elimination Effects 0.000 title abstract 5
- 238000003379 elimination reaction Methods 0.000 title abstract 5
- 238000001914 filtration Methods 0.000 title abstract 2
- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 230000008878 coupling Effects 0.000 claims abstract description 32
- 238000010168 coupling process Methods 0.000 claims abstract description 32
- 238000005859 coupling reaction Methods 0.000 claims abstract description 32
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 11
- 208000002925 dental caries Diseases 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
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- 229910000679 solder Inorganic materials 0.000 description 1
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Abstract
The invention is suitable for the field of filters, and provides a band elimination filter, a manufacturing method of the band elimination filter and a filtering device. The band elimination filter comprises a metal cavity main body and a cover plate covering the metal cavity main body, wherein the metal cavity main body is internally provided with cavity walls separating the metal main body into a plurality of resonant cavities. Each resonant cavity is provided with a window, and is internally provided with a resonant rod. The side face of the resonant rod is provided with a transmission main shaft, and the two ends of the transmission main shaft are installed on the metal cavity main body. A resonant screw which is just opposite to the resonant rod and is used for regulating the resonant frequency of the resonant rod is also arranged on the cover plate, and a coupling screw for regulating the coupled mass between the resonant rod and the transmission main shaft is also arranged on the cover plate or the metal cavity main body. In the invention, since the transmission main rod is arranged at the side face of the resonant rod, the resonant frequency of each resonant cavity can not be influenced when the coupled mass is regulated by the coupling screw. Therefore, mutual influence is avoided when the coupled mass and the resonant frequency are regulated, the debugging is easy, and needed indexes can be converged within a short time.
Description
Technical field
The invention belongs to filter field, relate in particular to the manufacture method and the filter of a kind of band stop filter, band stop filter.
Background technology
At present, along with the develop rapidly of wireless communication technology, the design of cavity body filter reaches its maturity.Because the restriction of the design error and the accuracy of manufacture, the stop-band filter production in present the filter production, particularly mobile communication need be debugged work in a large number, on production cost and manufacturing schedule, has all become the bottleneck of large-scale production.
Band stop filter is because of itself structure and the factor that realizes principle, and debugging work is more complicated, common band stop filter in the prior art; As shown in Figure 1; Common band stop filter comprises wire chamber main body 1, and resonant rod 3 and transmission main 2 are installed in the wire chamber main body 1, and transmission main 2 is arranged on the top of resonant rod 3; The screw rod 5 of the resonance frequency that is used to regulate resonant rod 3 is housed on the resonant rod; Common band stop filter also comprises the screw rod 4 of the coupling amount of regulating transmission main 2 resonant bars 3, but because screw rod 4 also has been adjusted to the resonance frequency of transmission main 2 resonant bars 3 in the coupling amount of regulating transmission main 2 resonant bars 3, therefore when debugging; Can cause and regulate coupling amount resonant frequency simultaneously; Because coupling amount resonant frequency influences each other again, causes debugging difficulty big, need long debug time just can converge to required index.
In sum, the common debugging difficulty of band stop filter on coupling amount resonant frequency is big.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of band stop filter, is intended to solve the debugging difficulty big problem of band stop filter common in the prior art on coupling amount resonant frequency.
The embodiment of the invention is achieved in that a kind of band stop filter, comprising: the wire chamber main body is contained in the cover plate on the said wire chamber main body with lid;
Be provided with the chamber wall that is used for said wire chamber main body is isolated into a plurality of resonant cavitys in the said wire chamber main body;
Said resonant cavity is provided with windows, in resonant rod is housed;
Said resonant rod side is provided with transmission main, and the two ends of said transmission main are installed on the said wire chamber main body;
Also be provided with the resonance screw rod of resonance frequency that is used to regulate resonant rod on the said cover plate over against resonant rod;
Also be provided with the coupling screw rod that is used to the coupling amount between said resonant rod and the transmission main of regulating on said cover plate or the said wire chamber main body.
The embodiment of the invention also provides a kind of manufacture method of band stop filter, said method comprising the steps of:
Resonant rod is installed in the resonant cavity that is isolated into the chamber wall in the wire chamber main body;
In the corresponding metallic cavity main body in resonant rod side, transmission main is installed;
The cover plate lid that is provided with resonance screw rod and coupling screw rod is contained on the said wire chamber main body.
The embodiment of the invention also provides a kind of filter, and described filter comprises described band stop filter.
The embodiment of the invention compared with prior art; Beneficial effect is: because transmission main is arranged on the side of resonant rod, when regulating the coupling amount through the coupling screw rod, can not have influence on the resonance frequency of each resonant cavity; Thereby be implemented in when regulating coupling amount resonant frequency; Be independent of each other, debugging can converge to required index at short notice easily.
Description of drawings
Fig. 1 is the structural representation of the common band stop filter that provides of prior art;
Fig. 2 is the perspective view of the band stop filter that provides of the embodiment of the invention;
Fig. 3 is the vertical view of the band stop filter that provides of the embodiment of the invention;
Fig. 4 is the rearview of the band stop filter that provides of the embodiment of the invention;
Fig. 5 is the cutaway view of the band stop filter that provides of the embodiment of the invention;
Fig. 6 is the flow chart of the manufacture method of the band stop filter that provides of the embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention 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 present invention, and be not used in qualification the present invention.
In the embodiment of the invention; Because transmission main is arranged on the side of resonant rod, when regulating the coupling amount, can not have influence on the resonance frequency of each resonant cavity through the coupling screw rod; Thereby be implemented in when regulating coupling amount resonant frequency; Be independent of each other, debugging can converge to required index at short notice easily.
See also Fig. 2 to Fig. 4, a kind of band stop filter that the embodiment of the invention provides comprises:
Wire chamber main body 6 is contained in the cover plate 7 on the said wire chamber main body 6 with lid;
Be provided with the chamber wall 16 that is used for said wire chamber main body 6 is isolated into a plurality of resonant cavitys 9 in the said wire chamber main body 6;
Said resonant cavity 9 is provided with windows 11, in resonant rod 10 is housed;
Said resonant rod 10 sides are provided with transmission main 8, and the two ends of said transmission main 8 are installed on the said wire chamber main body 6;
Also be provided with the resonance screw rod 12 of the resonance frequency that is used to regulate resonant rod 10 on the said cover plate 7;
Also be provided with the coupling screw rod 13 that is used to regulate coupling amount between said resonant rod 10 and the transmission main 8 on said cover plate 7 or the said wire chamber main body 6.
In an embodiment of the present invention, said coupling screw rod 13 is over against windowing 11.
In an embodiment of the present invention, said transmission main 8 two ends specifically are installed on the joint 15 that said wire chamber main body 6 two ends are provided with.
In an embodiment of the present invention, said resonance screw rod 12 is over against said resonant rod 10.
In an embodiment of the present invention, said wire chamber main body 6 is the metal case of an end opening.
The band stop filter of the embodiment of the invention; Because transmission main 8 is arranged on the side of resonant rod 10, when regulating the coupling amount, can not have influence on transmission main 8 resonant bars 10 resonance frequency separately through coupling screw rod 1; Thereby be implemented in when regulating coupling amount resonant frequency; Be independent of each other, debugging can converge to required index at short notice easily.
In an embodiment of the present invention, said 11 the big I of windowing is suitably adjusted according to the size parameter of coupling amount between said resonant rod 10 and the transmission main 8.
See also Fig. 5, the band stop filter of the embodiment of the invention also comprises:
Silver line 14, said silver-colored line 14 two ends are connected with transmission main 8 with said resonant rod 10 respectively.
In an embodiment of the present invention, said silver-colored line 14 two ends specifically can be connected with transmission main 8 with said resonant rod 10 respectively through welding manner.
Can regulate coupling amount between said resonant rod 10 and the transmission main 8 or/and regulate the thickness of silver-colored line through the solder joint height of regulating welding, with the requirement that touches the mark.
In an embodiment of the present invention, can regulate the insertion loss and the high temperature performance of band stop filter through the size that changes each resonant cavity 9 resonant bar 10.
See also Fig. 6, the embodiment of the invention also provides a kind of manufacture method of band stop filter, said method comprising the steps of:
S601: resonant rod is installed in the resonant cavity that is isolated into the chamber wall in the wire chamber main body;
S602: in the corresponding metallic cavity main body in resonant rod side, transmission main is installed;
S603: the cover plate lid that will be provided with resonance screw rod and coupling screw rod is contained on the said wire chamber main body.
In an embodiment of the present invention, further comprising the steps of after the said step that transmission main is installed in the corresponding metallic cavity main body in resonant rod side:
Said resonant rod is connected with silver-colored line with transmission main.
In an embodiment of the present invention, said said resonant rod and transmission main are specially with silver-colored line step of connecting:
Said resonant rod and transmission main are welded on silver-colored line two ends respectively, to connect.
In an embodiment of the present invention, said resonance screw rod is over against said resonant rod.
The embodiment of the invention also provides a kind of filter, and described filter comprises described band stop filter.
The manufacture method of band stop filter of the present invention, band stop filter and filter; Because transmission main is arranged on the side of resonant rod, when regulating the coupling amount, can not have influence on the resonance frequency of each resonant cavity through the coupling screw rod; Thereby be implemented in when regulating coupling amount resonant frequency; Be independent of each other, debugging can converge to required index at short notice easily.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. band stop filter comprises: the wire chamber main body is contained in the cover plate on the said wire chamber main body with lid;
Be provided with the chamber wall that is used for said wire chamber main body is isolated into a plurality of resonant cavitys in the said wire chamber main body;
Said resonant cavity is provided with windows, in resonant rod is housed;
Said resonant rod side is provided with transmission main, and the two ends of said transmission main are installed on the said wire chamber main body;
Also be provided with the resonance screw rod of the resonance frequency that is used to regulate resonant rod on the said cover plate;
Also be provided with the coupling screw rod that is used to the coupling amount between said resonant rod and the transmission main of regulating on said cover plate or the said wire chamber main body;
It is characterized in that said band stop filter also comprises: silver-colored line, said silver-colored line two ends are connected with transmission main with said resonant rod respectively.
2. band stop filter as claimed in claim 1 is characterized in that, said transmission main two ends specifically are installed on the joint of said wire chamber main body two ends setting.
3. band stop filter as claimed in claim 1 is characterized in that, said resonance screw rod is over against said resonant rod.
4. band stop filter as claimed in claim 1 is characterized in that, said wire chamber main body is the metal case of an end opening.
5. band stop filter as claimed in claim 1 is characterized in that,
Said silver-colored line two ends specifically are connected with transmission main with said resonant rod respectively through welding manner.
6. the manufacture method of a band stop filter is characterized in that, said method comprising the steps of:
Resonant rod is installed in the resonant cavity that is isolated into the chamber wall in the wire chamber main body;
In the corresponding metallic cavity main body in resonant rod side, transmission main is installed;
The cover plate lid that is provided with resonance screw rod and coupling screw rod is contained on the said wire chamber main body;
Said resonant rod is connected with silver-colored line with transmission main.
7. require the manufacture method of 6 described band stop filters like the right profit, it is characterized in that, said said resonant rod and transmission main are specially with silver-colored line step of connecting:
Said resonant rod and transmission main are welded on silver-colored line two ends respectively, to connect.
8. a filter is characterized in that, described filter comprises each described band stop filter in the claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010190097 CN101847767B (en) | 2010-05-27 | 2010-05-27 | Band elimination filter, manufacturing method of band elimination filter and filtering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010190097 CN101847767B (en) | 2010-05-27 | 2010-05-27 | Band elimination filter, manufacturing method of band elimination filter and filtering device |
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| Publication Number | Publication Date |
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| CN101847767A CN101847767A (en) | 2010-09-29 |
| CN101847767B true CN101847767B (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010190097 Active CN101847767B (en) | 2010-05-27 | 2010-05-27 | Band elimination filter, manufacturing method of band elimination filter and filtering device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977586A (en) * | 2016-06-23 | 2016-09-28 | 江苏华灿电讯股份有限公司 | Low-frequency ultra-wideband filter |
| CN109713413B (en) * | 2019-02-25 | 2024-05-10 | 江苏贝孚德通讯科技股份有限公司 | Coupling structure of band-stop characteristic communication front-end equipment component |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2754227Y (en) * | 2004-12-10 | 2006-01-25 | 深圳市微通科技有限公司 | Coaxial cavity semi-integrated total-parameter microwave band-stop filter |
| CN200962447Y (en) * | 2006-09-29 | 2007-10-17 | 深圳国人通信有限公司 | Built-in coaxial cavity band resistance filter of the transmission line |
-
2010
- 2010-05-27 CN CN 201010190097 patent/CN101847767B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2754227Y (en) * | 2004-12-10 | 2006-01-25 | 深圳市微通科技有限公司 | Coaxial cavity semi-integrated total-parameter microwave band-stop filter |
| CN200962447Y (en) * | 2006-09-29 | 2007-10-17 | 深圳国人通信有限公司 | Built-in coaxial cavity band resistance filter of the transmission line |
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| CN101847767A (en) | 2010-09-29 |
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Effective date of registration: 20211014 Address after: 518000 Mobi Building, No. 17, Science and Technology North Road, Xili Street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: MOBI ANTENNA TECHNOLOGIES (SHENZHEN) Co.,Ltd. Patentee after: MOBI TECHNOLOGY (SHENZHEN) Co.,Ltd. Patentee after: MOBI TELECOMMUNICATIONS TECHNOLOGIES (JI'AN) Co.,Ltd. Patentee after: MOBI TECHNOLOGIES (XI'AN) Co.,Ltd. Patentee after: Shenzhen Shengyu Wisdom Network Technology Co.,Ltd. Patentee after: Xi'an Mobi Antenna Technology Engineering Co.,Ltd. Address before: 518057 Guangdong city of Shenzhen province Nanshan District high tech Industrial Park North Long Hill Road Building mobi Patentee before: MOBI ANTENNA TECHNOLOGIES (SHENZHEN) Co.,Ltd. |