CN200947460Y - Coupling structure between coaxial cavity resonators - Google Patents
Coupling structure between coaxial cavity resonators Download PDFInfo
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- CN200947460Y CN200947460Y CN 200620016814 CN200620016814U CN200947460Y CN 200947460 Y CN200947460 Y CN 200947460Y CN 200620016814 CN200620016814 CN 200620016814 CN 200620016814 U CN200620016814 U CN 200620016814U CN 200947460 Y CN200947460 Y CN 200947460Y
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- coaxial cavity
- coupled structure
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- cavity resonator
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- 230000008878 coupling Effects 0.000 title claims abstract description 32
- 238000010168 coupling process Methods 0.000 title claims abstract description 32
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 50
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000006880 cross-coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation 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
- 230000008447 perception Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The utility model relates to a coupled structure between the coaxial cavity resonators. A coupling window is arranged on the dividing wall between two neighboring coaxial cavities holding resonators; a metal cylinder is positioned in the coupling window; the two ends of the metal cylinder are connected with a metal wire respectively; the other ends of the two metal wires are fixedly connected with the cover plate and cavity bottom of the coaxial cavity respectively. As the coupled structure between the coaxial cavity resonators of the utility model can realize the improvement of the capacitive coupling intensity by connecting the metal cylinder with the cover plate and cavity bottom through two metal wires, the effect is particularly distinct when the high frequency is far from the resonance column.
Description
Technical field
The utility model relates to radio frequency and the microwave filter in the wireless communication field, relates in particular to based on the coupled structure between the filter of coaxial cavity resonator.
Background technology
In Wireless Telecom Equipment, need to use a large amount of coaxial cavity filters.Along with the fast development of mobile communications industry, radio frequency resource growing tension, the frequency range that each communication system is used is more and more approaching, is easy to disturb the communication system of adjacent frequency band.The way that addresses this problem is exactly the isolation that improves between frequency band, and this is embodied in will have good band to suppress exactly outward on the filter electric property, and this just makes needs to use cross coupling structure in the filter.
Existing coaxial cavity filter is mostly taked capacitive and two kinds of coupled modes of perception.Capacitive is coupling in and is generally the coupling dumbbell on the specific implementation (as capacitive coupled structure between China's a kind of coaxial cavity resonator that No. 03220220.2 patent disclosed, see also Fig. 1), it can be finely tuned by tuning screw, in fact the coupling dumbbell is exactly coupling probe, be generally a metal cartridge, it passes the coupling window between two cavitys, fix by being installed between two cavitys the metallic support on the dividing wall, metallic support is generally insulating material, and metal cartridge is generally good conductor of electricity or the surperficial material that is coated with good conductive layer is formed, it can be cylinder, also can be rectangular cylinder, the length or the metal cartridge two ends that can increase metal cartridge when being necessary connect sheet metal to increase the coupling amount.
Yet, a little less than the coupling of the coupling dumbbell of above-mentioned prior art, can't realize close coupling, this is because electric field mainly concentrates on the resonator top, all is difficult to extract enough strong capacitive coupling amount even if the coupling dumbbell is lengthened near the resonance post; And add sheet metal at the metal cartridge two ends, though can add the close coupling amount to a certain extent, the amount of strengthening is limited, and can reduce temperature stability; In addition; when frequency is higher; resonance post often very short even disappear formation disappearance mould or waveguide cavity; at this moment; the coupling dumbbell almost can't be realized its function; particularly when two cavity distances that need coupling were far away, this problem will be more outstanding, so capacitive coupling low side attenuation pole majority can't be realized.
The utility model content
The capacitive coupled structure can't realize close coupling between existing coaxial cavity resonator in order to overcome, the difficult deficiency that realizes of strong capacitive coupling when especially frequency is high, the utility model provides coupled structure between a kind of coaxial cavity resonator, and it is not only simple in structure, and can realize close coupling.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: coupled structure between a kind of coaxial cavity resonator is provided, it offers coupling window on the dividing wall between two adjacent coaxial cavities of placing resonator respectively, one metal cartridge is arranged in the coupling window, the two ends of described metal cartridge are connected with a metal wire respectively, and an other end of described two metal wires is connected and fixed respectively with at the bottom of the cover plate of described coaxial cavity and the chamber.
Described metal cartridge vertically passes coupling window.
An other end of described two metal wires is connected and fixed by fixed screw respectively with at the bottom of the cover plate of described coaxial cavity and the chamber.
The appropriate location of corresponding metal cartridge comprises a tuning screw on the described cover plate.
The corresponding setting of described tuning screw perforation cover plate with metal cartridge.
Described metal cartridge is a kind of in rectangular cylinder or the cylinder.
The metal wire at described metal cartridge two ends with at the bottom of cover plate and the chamber between vertically be connected.
The beneficial effects of the utility model are: because coupled structure is connected and fixed metal cartridge at the bottom of by two metal wires and cover plate, chamber between the utility model coaxial cavity resonator, can realize improving the capacitive stiffness of coupling, particularly high frequency and resonance post are at a distance of distant the time, and effect is more obvious.
Description of drawings
Fig. 1 is the generalized section of capacitive coupled structure between existing coaxial cavity resonator;
Fig. 2 is the generalized section of coupled structure between the utility model coaxial cavity resonator;
Fig. 3 is the schematic perspective view of coupled structure between the utility model coaxial cavity resonator.
Embodiment
See also Fig. 2 and Fig. 3, coupled structure comprises two coaxial cavity resonators 10 between the utility model coaxial cavity resonator, one dividing wall 20 is set between two resonators 10, comprise coupling window 21 on the dividing wall 20, two resonators 10 by cover plate 11 and chamber at the bottom of 12 sealings be coupled together by coupling window 21 to form two resonant cavities, 13,14, two resonant cavities 13,14.
Coupled structure also comprises the metal cartridge 30 that vertically passes coupling window 21 between the utility model coaxial cavity resonator, the two ends of metal cartridge 30 are connected with a metal wire 31,32 respectively, wherein the other end of metal wire 31 is connected with cover plate 11, the other end of metal wire 32 with 12 be connected at the bottom of the chamber, promptly coupled structure is fixed by metal wire 31,32 and two tie points 41,42 of 12 at the bottom of cover plate 11 and the chamber.
In the time of fine setting, under the constant situation of metal cartridge 30 length, can integral body move up and down whole coupled structure, also can be on cover plate 11 appropriate location of corresponding metal cartridge 30 add that tuning screw (figure does not show) finely tunes, fix two tie points 41,42 again to finish fine setting.
Be appreciated that at the bottom of the metal wire 31,32 of coupled structure between the utility model coaxial cavity resonator and cover plate 11 and the chamber that two tie points of 12 41,42 fix by fixed screw; Secondly, metal cartridge 30 and metal wire 31,32 are coated with the material formation of good conductive layer by good conductor of electricity or surface; In addition, metal cartridge 30 can be a rectangular cylinder, also can be cylinder; Two wires the 31, the 32nd at metal cartridge 30 two ends, vertical connection status.
The above; it only is preferred embodiment of the present utility model; be not to be used to limit protection range of the present utility model, all any modifications of within spirit of the present utility model and principle, being made, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1, coupled structure between a kind of coaxial cavity resonator, it offers coupling window on the dividing wall between two adjacent coaxial cavities of placing resonator respectively, one metal cartridge is arranged in the coupling window, it is characterized in that: the two ends of described metal cartridge are connected with a metal wire respectively, and an other end of described two metal wires is connected and fixed respectively with at the bottom of the cover plate of described coaxial cavity and the chamber.
2, coupled structure between coaxial cavity resonator as claimed in claim 1, it is characterized in that: described metal cartridge vertically passes coupling window.
3, coupled structure between coaxial cavity resonator as claimed in claim 2 is characterized in that: an other end of described two metal wires is connected and fixed by fixed screw respectively with at the bottom of the cover plate of described coaxial cavity and the chamber.
4, coupled structure between coaxial cavity resonator as claimed in claim 3, it is characterized in that: the appropriate location of corresponding metal cartridge comprises a tuning screw on the described cover plate.
5, coupled structure between coaxial cavity resonator as claimed in claim 4 is characterized in that: the corresponding setting with metal cartridge of described tuning screw perforation cover plate.
6, coupled structure between coaxial cavity resonator as claimed in claim 5 is characterized in that: described metal cartridge is a kind of in rectangular cylinder or the cylinder.
7, coupled structure between coaxial cavity resonator as claimed in claim 6 is characterized in that: the metal wire at described metal cartridge two ends with at the bottom of cover plate and the chamber between vertically be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620016814 CN200947460Y (en) | 2006-06-29 | 2006-06-29 | Coupling structure between coaxial cavity resonators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620016814 CN200947460Y (en) | 2006-06-29 | 2006-06-29 | Coupling structure between coaxial cavity resonators |
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| Publication Number | Publication Date |
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| CN200947460Y true CN200947460Y (en) | 2007-09-12 |
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| CN 200620016814 Expired - Fee Related CN200947460Y (en) | 2006-06-29 | 2006-06-29 | Coupling structure between coaxial cavity resonators |
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| CN (1) | CN200947460Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651243A (en) * | 2009-09-14 | 2010-02-17 | 昆山市双桥铜业有限公司镭赢科技研究所 | Duplexer |
| 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 |
| CN102185170A (en) * | 2011-02-28 | 2011-09-14 | 西安空间无线电技术研究所 | High-power corner cut filter with square cavity |
| CN102222812A (en) * | 2011-03-04 | 2011-10-19 | 西安空间无线电技术研究所 | Round-chamber dual-mode side-wall coupling filter capable of inhibiting parasitic coupling |
| CN101527380B (en) * | 2009-04-22 | 2012-10-24 | 京信通信系统（中国）有限公司 | Cavity radio frequency apparatus with capacitive cross coupling device |
| CN103441317A (en) * | 2013-09-05 | 2013-12-11 | 宁波泰立电子科技有限公司 | Cavity filter with rotation adjustable loop |
| CN107181033A (en) * | 2017-05-24 | 2017-09-19 | 武汉凡谷电子技术股份有限公司 | A kind of cavity body filter for TM mould dielectric resonators |
| CN108370076A (en) * | 2015-12-08 | 2018-08-03 | 华为技术有限公司 | The cross coupling device and filter of filter |
-
2006
- 2006-06-29 CN CN 200620016814 patent/CN200947460Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101527380B (en) * | 2009-04-22 | 2012-10-24 | 京信通信系统（中国）有限公司 | Cavity radio frequency apparatus with capacitive cross coupling device |
| 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 |
| CN101964438B (en) * | 2009-07-23 | 2013-09-04 | 深圳市大富科技股份有限公司 | Cavity filter and connecting structure thereof |
| CN101651243A (en) * | 2009-09-14 | 2010-02-17 | 昆山市双桥铜业有限公司镭赢科技研究所 | Duplexer |
| CN102185170A (en) * | 2011-02-28 | 2011-09-14 | 西安空间无线电技术研究所 | High-power corner cut filter with square cavity |
| CN102222812A (en) * | 2011-03-04 | 2011-10-19 | 西安空间无线电技术研究所 | Round-chamber dual-mode side-wall coupling filter capable of inhibiting parasitic coupling |
| CN102222812B (en) * | 2011-03-04 | 2013-07-24 | 西安空间无线电技术研究所 | Round-chamber dual-mode side-wall coupling filter capable of inhibiting parasitic coupling |
| CN103441317A (en) * | 2013-09-05 | 2013-12-11 | 宁波泰立电子科技有限公司 | Cavity filter with rotation adjustable loop |
| CN108370076A (en) * | 2015-12-08 | 2018-08-03 | 华为技术有限公司 | The cross coupling device and filter of filter |
| CN107181033A (en) * | 2017-05-24 | 2017-09-19 | 武汉凡谷电子技术股份有限公司 | A kind of cavity body filter for TM mould dielectric resonators |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070912 Termination date: 20100629 |