CN101834334B - Coupling port of coaxial cavity filter - Google Patents
Coupling port of coaxial cavity filter Download PDFInfo
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- CN101834334B CN101834334B CN 201010171130 CN201010171130A CN101834334B CN 101834334 B CN101834334 B CN 101834334B CN 201010171130 CN201010171130 CN 201010171130 CN 201010171130 A CN201010171130 A CN 201010171130A CN 101834334 B CN101834334 B CN 101834334B
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- 238000010168 coupling process Methods 0.000 title claims abstract description 53
- 230000008878 coupling Effects 0.000 title claims abstract description 48
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 48
- 239000004020 conductor Substances 0.000 claims abstract description 71
- 239000002184 metal Substances 0.000 claims abstract description 26
- 238000009413 insulation Methods 0.000 claims description 4
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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Abstract
The invention relates to a coupling port of a coaxial cavity filter. The coupling port of the coaxial cavity filter consists of a resonant cavity, a resonant column, a tuning screw rod, a port metal wire, a radio frequency connector and a resonant cover board, wherein the resonant column is fixedly connected with a bottom surface in the resonant cavity; the radio frequency connector is fixedly connected with the outside of the resonant cavity; the port metal wire is electrically connected between the resonant column and the radio frequency connector; the tuning screw rod is arranged on the tuning cover board above the resonant column and is coaxial with the resonant column; and a port conductor component is connected between the first resonant column in the resonant cavity of the coupling port of the coaxial cavity filter and the radio frequency connector. The coupling port of the coaxial cavity filter has the advantages of a needed stronger port coupling amount obtained by adjusting the shape of the port conductor, particularly obvious effect on ultra-wide passband products, simple structure, mass production, application to other products with special requirement on the port coupling amount, and high applicability.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to coupling process and the coupling port thereof of coaxial cavity filter in a kind of wireless communication field.
Background technology
In the past few decades, the wireless mobile telecommunication technology develop rapidly, wherein radio-frequency module is widely used, and filter is being brought into play more and more important effect therein, and the coaxial cavity filter designing technique is more and more ripe.But for the very wide filter of passband (bandwidth surpasses 100MHz), particularly mixer, often need the port bandwidth of non-constant width, at this moment existing implementation just is difficult to competent.
The port coupling of existing filter is by being weldingly connected the resonant column in the resonant cavity and the tap of radio frequency connector tail end to realize with metal wire.Adjust port coupling amount by adjusting wire-shaped, thickness and welding and assembling height.If the filter that pass band width is very wide then needs very strong port coupling amount.For this filter, prior art can only by add coarse metal wire, with the sheet metal sheet with raise metal wire or the height of sheet is realized.Be unfavorable for bending and molding and add coarse metal wire, raise metal wire and often can not satisfy required coupling amount that consistency is not easy again to be met during with sheet metal.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, and the coupling process of coaxial cavity filter in a kind of wireless communication field and the coaxial cavity filter coupling port that strong port coupling measures to realize thereof are provided.
Purpose of the present invention can realize by following measures:
A kind of coaxial cavity filter coupling process of the present invention is fixedly connected with the radio frequency connector tap resonant column in the resonant cavity of coaxial cavity filter with metal wire, highly adjust port coupling amount by adjusting wire-shaped, thickness and connection.Described coaxial cavity filter coupling process, be to be serially connected in port metal wire between the radio frequency connector of coaxial cavity filter and first resonant column in the resonant cavity and shape, the position of port conductors assembly by adjustment, the coupling amount of coaxial cavity filter coupling port is regulated.The coupling amount of described coaxial cavity filter coupling port also can be regulated by port tuning screw and port conductors assembly relative position that adjusting is located at port conductors assembly one end.
A kind of coaxial cavity filter coupling port of the present invention, formed by resonant cavity, resonant column, tuning screw, metal wire, radio frequency connector, tuning cover plate, resonant column is fixedly connected on the bottom surface in the resonant cavity, radio frequency connector is fixedly connected on the resonant cavity outside, metal wire is connected electrically between resonant column and the radio frequency connector, tuning screw is arranged on the tuning cover plate of resonant column top, and coaxial with resonant column.Between first resonant column in described radio frequency connector and the resonant cavity, be connected with a port metal wire and a port conductors assembly, port conductors assembly top is provided with the port tuning screw that is installed in correspondence position on the tuning cover plate.Described port conductors assembly is comprised of port conductors and conductor Supporting Media, and port conductors is fixedly connected with the conductor Supporting Media.The conductor Supporting Media of described port conductors assembly adopts nonmetallic engineering plastics, and port conductors and port tuning screw are metal material.Described conductor Supporting Media is fixedly connected on tuning cover plate inner face.Described conductor Supporting Media also can be fixedly connected on the bottom surface in the resonant cavity.The upper and lower side of described port conductors insulate with tuning cover plate resonant cavity body respectively or only insulate with tuning cover plate.
The coupling process of coaxial cavity filter of the present invention and coupling port thereof, to be serially connected in a port metal wire between the radio frequency connector of coaxial cavity filter and first resonant column in the resonant cavity and the shape of a port conductors assembly by adjustment, the position, obtain needed stronger port coupling amount, so that strong port coupling is able to easy realization, can be applied in has on the product of special requirement port coupling amount, effect is particularly evident on super broad passband product, and simple structure, being easy to batch production, is the very wide coaxial cavity filter coupling port of a kind of amount of coupling applicability.
Description of drawings
Fig. 1 is the generalized section of coaxial cavity filter coupling port of the present invention.
A kind of embodiment of Fig. 2 coaxial cavity filter coupling port of the present invention.
A kind of embodiment of Fig. 3 coaxial cavity filter coupling port of the present invention.
A kind of embodiment of Fig. 4 coaxial cavity filter coupling port of the present invention.
A kind of structure of Fig. 5 cooperation Fig. 3 of the present invention, Fig. 4 embodiment coaxial cavity filter coupling port conductor assembly.
A kind of embodiment of Fig. 6 coaxial cavity filter coupling port of the present invention.
A kind of embodiment of Fig. 7 coaxial cavity filter coupling port of the present invention.
A kind of structure of Fig. 8 cooperation Fig. 6 of the present invention, Fig. 7 embodiment coaxial cavity filter coupling port conductor assembly.
Embodiment
The below is further described the present invention by accompanying drawing:
As shown in Figure 1, coaxial cavity filter coupling port of the present invention, formed by resonant cavity 6, resonant column 2, tuning screw 1, port metal wire 8, radio frequency connector 7, tuning cover plate 4, resonant column 2 is fixedly connected on the bottom surface in the resonant cavity 6, radio frequency connector 7 is fixedly connected on resonant cavity 6 outsides, port metal wire 8 is connected electrically between resonant column 2 and the radio frequency connector 7, and tuning screw 1 is arranged on the tuning cover plate 4 of resonant column 2 coaxial tops.Between first resonant column 2 and radio frequency connector 7 in the resonant cavity 6, also be connected with a port conductors assembly.The port conductors assembly is comprised of port conductors 5 and conductor Supporting Media 9, and port conductors 5 is fixedly connected with conductor Supporting Media 9.Conductor Supporting Media 9 is fixedly connected on the bottom surface in the resonant cavity, also can be fixedly connected on tuning cover plate 4 inner faces.Port conductors assembly top is provided with and is installed in port tuning screw 3 corresponding on the tuning cover plate 4.The port conductors of port conductors assembly and port tuning screw are metal material, and conductor Supporting Media 9 adopts nonmetallic engineering plastics.
During enforcement, port conductors 5 usefulness screw threads (or other are fixedly connected with mode) and conductor Supporting Media 9 linked together consists of port conductors assembly, then fixing resonance post 2, radio frequency connector 7 and port conductors assembly on filter resonance cavity 6.With port metal wire 8 resonant column 2 and port conductors 5 are electrically connected, are electrically connected with another side and the radio frequency connector 7 of port metal wire 8 with port conductors 5 again.Assemble at last the tuning cover plate 4 that tuning screw 1 and port tuning screw 3 have been installed.If coupling amount and designing requirement are not inconsistent, can reach designing requirement by welding and assembling height, the tuning tuning screw 1 of regulating port metal wire 8, the shape of adjusting port metal wire 8.
The present invention is serially connected in radio frequency connector 7 and the port metal wire 8 between first resonant column 2 in the resonant cavity 6 and shape, the position of port conductors assembly of coaxial cavity filter by change, just can reach easily stronger port coupling amount requirement, can also regulate the port tuning screw 3 that is located at port conductors assembly one end and regulate with port conductors assembly relative position.
Such as Fig. 2, present embodiment is on the basis of Fig. 1 embodiment 1, is provided with a boss in resonant cavity 6 bottom surfaces, and the port conductors assembly is fixedly connected on the boss.
Coaxial cavity filter coupling port of the present invention, but also derivation becomes such as Fig. 3 and realizes purpose of the present invention to the port mode of Fig. 7:
Embodiment 3
According to port conductors assembly shown in Figure 5, formed by port conductors 5 and conductor Supporting Media 9 and dielectric 10, the upper and lower side of port conductors 5 respectively with 6 insulation of tuning cover plate 4 resonant cavity bodies.
In conjunction with Fig. 3, Fig. 5, present embodiment is on the basis of Fig. 1 embodiment 1, radio frequency connector 7 is changed be located on the tuning cover plate 4, and is coaxial with the length direction of port conductors 5; Be provided with dielectric 10 between port conductors 5 and the radio frequency connector 7, port metal wire 8 passes dielectric 10 and is electrically connected with radio frequency connector 7 with after the top of port conductors 5 is electrically connected.
In conjunction with Fig. 4, Fig. 5, present embodiment is on the basis of embodiment 3, and establishing resonant cavity 6 bottom surfaces has a boss, and the port conductors assembly is fixedly connected on the boss.
According to port conductors assembly shown in Figure 8, formed by port conductors 5 and dielectric 10, port conductors 5 lower ends directly fixedly are connected electrically on resonant cavity 6 bottom surfaces, only the upper end of port conductors 5 and 4 insulation of tuning cover plate.
In conjunction with Fig. 6, Fig. 8, present embodiment is on the basis of embodiment 3, port conductors 5 directly fixedly is connected electrically on resonant cavity 6 bottom surfaces, port conductors 5 length directions and resonant column 2 axially parallels, port metal wire 8 passes dielectric 10 and is electrically connected with radio frequency connector 7 with after the top of port conductors 5 is electrically connected.
In conjunction with Fig. 7, Fig. 8, present embodiment is on the basis of embodiment 5, and establishing resonant cavity 6 bottom surfaces has a boss, and port conductors 5 fixedly is connected electrically on the boss.
The present invention can also be applied on the product of general couple amount.Compare with existing conventional port, coaxial cavity filter coupling port of the present invention has wider port coupling amount adjustable range, has very strong advantage at the broad passband product.Can also in the special construction that some conventional ports can't be realized, play a role.
The above embodiment and legend; it only is preferred embodiments of the present invention; be not for limiting protection scope of the present invention, all any modifications of making within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. coaxial cavity filter coupling port, by resonant cavity, resonant column, tuning screw, the port metal wire, radio frequency connector, tuning cover plate forms, resonant column is fixedly connected on the bottom surface in the resonant cavity, radio frequency connector is fixedly connected on the resonant cavity outside, the port metal wire is connected electrically between resonant column and the radio frequency connector, tuning screw is arranged on the tuning cover plate of resonant column top, and coaxial with resonant column, between first resonant column and radio frequency connector in the described resonant cavity, be connected with a port conductors assembly, it is characterized in that: described port conductors assembly is comprised of port conductors and conductor Supporting Media, and port conductors is fixedly connected with the conductor Supporting Media.
2. coaxial cavity filter coupling port according to claim 1 is characterized in that: described conductor Supporting Media is fixedly connected on the bottom surface in the resonant cavity.
3. coaxial cavity filter coupling port according to claim 1, it is characterized in that: described conductor Supporting Media is fixedly connected on tuning cover plate inner face.
4. it is characterized in that according to claim 2 or 3 described coaxial cavity filter coupling port: described port conductors assembly top is provided with the port tuning screw that is installed in correspondence position on the tuning cover plate.
5. coaxial cavity filter coupling port according to claim 4, it is characterized in that: the conductor Supporting Media of described port conductors assembly adopts nonmetallic engineering plastics.
6. coaxial cavity filter coupling port according to claim 5 is characterized in that: the upper and lower side of described port conductors respectively with tuning cover plate resonant cavity body insulation or only with tuning cover plate insulation.
7. coaxial cavity filter coupling port according to claim 6, it is characterized in that: described port conductors and port tuning screw are metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010171130 CN101834334B (en) | 2010-05-07 | 2010-05-07 | Coupling port of coaxial cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010171130 CN101834334B (en) | 2010-05-07 | 2010-05-07 | Coupling port of coaxial cavity filter |
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| Publication Number | Publication Date |
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| CN101834334A CN101834334A (en) | 2010-09-15 |
| CN101834334B true CN101834334B (en) | 2013-03-20 |
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| CN 201010171130 Expired - Fee Related CN101834334B (en) | 2010-05-07 | 2010-05-07 | Coupling port of coaxial cavity filter |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI125596B (en) | 2010-11-12 | 2015-12-15 | Intel Corp | Adjustable resonator filter |
| CN102496757A (en) * | 2011-12-21 | 2012-06-13 | 京信通信系统（中国）有限公司 | Communication apparatus possessing ultra-wideband coupling port |
| CN103311635B (en) * | 2012-03-15 | 2015-04-22 | 成都赛纳赛德科技有限公司 | Planar circuit tuning structure |
| CN103000982B (en) * | 2012-12-08 | 2014-09-17 | 宁波泰立电子科技有限公司 | Forming machine for cavity filter input port coupling line and processing method of forming machine |
| CN203386873U (en) * | 2013-07-22 | 2014-01-08 | 深圳市大富科技股份有限公司 | Cavity filter and tapping line |
| WO2018133335A1 (en) * | 2017-01-22 | 2018-07-26 | 深圳市国人射频通信有限公司 | Electric coupling port structure, and cavity filter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201000917Y (en) * | 2006-12-20 | 2008-01-02 | 摩比天线技术（深圳）有限公司 | Coupled structure between coaxial cavity resonators |
| CN201038287Y (en) * | 2007-04-24 | 2008-03-19 | 上海爱立德通讯器件有限公司 | Coaxial cavity filter |
| CN101276952A (en) * | 2008-04-15 | 2008-10-01 | 华南理工大学 | Mixed coupling coaxial cavity filter capable of controlling electromagnetism |
| CN101630767A (en) * | 2009-08-11 | 2010-01-20 | 京信通信系统（中国）有限公司 | Cavity medium filter and tuning method thereof |
| CN101964438A (en) * | 2009-07-23 | 2011-02-02 | 深圳市大富科技股份有限公司 | Cavity filter and connecting structure thereof |
-
2010
- 2010-05-07 CN CN 201010171130 patent/CN101834334B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201000917Y (en) * | 2006-12-20 | 2008-01-02 | 摩比天线技术（深圳）有限公司 | Coupled structure between coaxial cavity resonators |
| CN201038287Y (en) * | 2007-04-24 | 2008-03-19 | 上海爱立德通讯器件有限公司 | Coaxial cavity filter |
| CN101276952A (en) * | 2008-04-15 | 2008-10-01 | 华南理工大学 | Mixed coupling coaxial cavity filter capable of controlling electromagnetism |
| CN101964438A (en) * | 2009-07-23 | 2011-02-02 | 深圳市大富科技股份有限公司 | Cavity filter and connecting structure thereof |
| CN101630767A (en) * | 2009-08-11 | 2010-01-20 | 京信通信系统（中国）有限公司 | Cavity medium filter and tuning method thereof |
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| CN101834334A (en) | 2010-09-15 |
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