CN201117780Y - Coaxial cavity resonator coupled structure - Google Patents
Coaxial cavity resonator coupled structure Download PDFInfo
- Publication number
- CN201117780Y CN201117780Y CN 200720170722 CN200720170722U CN201117780Y CN 201117780 Y CN201117780 Y CN 201117780Y CN 200720170722 CN200720170722 CN 200720170722 CN 200720170722 U CN200720170722 U CN 200720170722U CN 201117780 Y CN201117780 Y CN 201117780Y
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- coaxial
- coupled structure
- sheet metal
- coaxial cavity
- cavity resonator
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- 239000002184 metal Substances 0.000 claims abstract description 22
- 238000009413 insulation Methods 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 abstract description 15
- 238000010168 coupling process Methods 0.000 abstract description 15
- 238000005859 coupling reaction Methods 0.000 abstract description 15
- 238000013461 design Methods 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 6
- 208000002925 dental caries Diseases 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000007257 malfunction Effects 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
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model provides an electromagnetic coupling structure between coaxial cavity resonators; the coaxial cavity resonator includes two neighboring coaxial cavities which are respectively provided with a resonator; the isolating wall between the two coaxial cavities are provided with a coupling structure; the coupling structure includes an insulating supporting body and a metal sheet; the metal sheet is arranged on the insulating supporting body; the two ends of the metal sheet are respectively arranged on the two coaxial cavities. The electromagnetic coupling structure between coaxial cavity resonators is simple, easily formed and has a large adjusting range, thus bringing convenience for the design of a filter and the cavity layout by arranging the metal sheet on the supporting body.
Description
[technical field]
The utility model relates to field of radio frequency communication, relates in particular to a kind of based on the coupled structure in the filter of coaxial cavity resonator.
[background technology]
Along with the development of mobile communications industry, the radio frequency resource is more and more nervous, and the frequency range that each communication system is used is more and more approaching, easily disturbs the communication system of adjacent frequency band and makes its cisco unity malfunction, thereby communication system is had higher requirement.Communication system is in order to strengthen the inhibition to adjacent frequency band, and the inhibition of each parts in the system all has much room for improvement, and is just higher for the requirement of main inhibiting filter, duplexer and mixer in communication system.
As shown in Figure 1, the coupled structure mode that most of coaxial cavity filter is taked is that two cavitys 1 ' are realized the capacitive coupling by one between two cavitys 1 ' coupling dumbbell 2 ', thereby realize the low side attenuation pole, and regulate coupling content by the length of adjusting coupling dumbbell 2 '.Coupling dumbbell 2 ' is long more, and the coupling between cavity 1 ' is just big more.But when the coupling amount between two cavitys 1 ' is very big, when power quantitatively increases to a certain degree, even the termination of coupling dumbbell 2 ' almost touches cavity 1 ' resonant rod, also is difficult to satisfy, even has the reliability that reduces performance of filter.Simultaneously, when frequency is higher, resonance post often very short even disappear formation disappearance mould or waveguide cavity, at this moment, dumbbell coupling 2 ' almost can't realize its function.
[utility model content]
Technical problem to be solved in the utility model is to provide the structure of the electromagnetic coupled between a kind of coaxial cavity resonator, and its adjustable range is bigger.
For solving the problems of the technologies described above, the technical solution of the utility model is: the structure of the electromagnetic coupled between a kind of coaxial cavity resonator is provided, described coaxial cavity resonator comprises two adjacent coaxial cavities that are placed with resonator respectively, dividing wall between two coaxial cavities is provided with coupled structure, described coupled structure comprises insulation support body and sheet metal, sheet metal is located on the insulation support body, and the two ends of sheet metal are located at respectively in two coaxial cavities.
Compared with prior art, the electromagnetic coupled structure between above-mentioned coaxial cavity resonator is by establishing sheet metal on supporter, simple, easily be shaped and adjustable range big, for Filter Design and cavity layout have been brought convenience.
[description of drawings]
Fig. 1 is the structural representation of coupled modes in the prior art;
Fig. 2 is the structural representation of the utility model one preferred embodiment;
Fig. 3 is the cross-sectional schematic of Fig. 2.
[embodiment]
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.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.
See also Fig. 2 and Fig. 3, it is a preferred embodiment of the coupled structure between the utility model coaxial cavity resonator, with concrete filter is example, comprise two coaxial cavities 1, be placed with resonator in the described coaxial cavity 1, described two coaxial cavities 1 are adjacent, has a dividing wall 2 between the two, on dividing wall 2, offer mounting groove (not indicating among the figure), dress coupled structure 3 in mounting groove, described coupled structure 3 comprises insulation support body 30 and sheet metal 32, described supporter 30 is installed in the mounting groove, described sheet metal 32 is applied on the insulation support body 30, and the two ends 320 of sheet metal 32 are located at respectively in two coaxial cavities 1.
Described insulation support body 30 is with sheet metal 32 injection mouldings or be molded into one, and sheet metal 32 can symmetrical shaping different shape or sheared shape different in size.Described sheet metal 32 is for electric conductor or surface are coated with conductive layer, and the width of this sheet metal, length and thickness can adjust the corresponding structure size according to situation, can symmetry be bent into different shape or cut into forms such as sheet metal different in size.
Coupled structure between the utility model coaxial cavity resonator has strengthened the coupling between adjacent two coaxial cavity 1 resonators greatly, increased the debugging scope, and overall dimensions is constant, can realize the low side attenuation pole under high-frequency, the close coupling situation, and adjustable range is big; Easy shaping simple in structure can reduce cost.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (4)
1. the electromagnetic coupled structure between a coaxial cavity resonator, described coaxial cavity resonator comprises two adjacent coaxial cavities that are placed with resonator respectively, dividing wall between two coaxial cavities is provided with coupled structure, it is characterized in that: described coupled structure comprises insulation support body and sheet metal, sheet metal is located on the insulation support body, and the two ends of sheet metal are located at respectively in two coaxial cavities.
2. the electromagnetic coupled structure between coaxial cavity resonator as claimed in claim 1 is characterized in that: offer mounting groove on the described dividing wall, described supporter is located in the mounting groove.
3. the electromagnetic coupled structure between coaxial cavity resonator as claimed in claim 1 is characterized in that: described insulation support body and sheet metal are one-body molded by injection moulding or mold pressing.
4. as the electromagnetic coupled structure between claim 1,2 or 3 described coaxial cavity resonators, it is characterized in that: described sheet metal is the sheet metal that electric conductor or surface are coated with conductive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720170722 CN201117780Y (en) | 2007-11-12 | 2007-11-12 | Coaxial cavity resonator coupled structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720170722 CN201117780Y (en) | 2007-11-12 | 2007-11-12 | Coaxial cavity resonator coupled structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201117780Y true CN201117780Y (en) | 2008-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720170722 Expired - Fee Related CN201117780Y (en) | 2007-11-12 | 2007-11-12 | Coaxial cavity resonator coupled structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN201117780Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122742A (en) * | 2010-12-02 | 2011-07-13 | 宁波泰立电子科技有限公司 | Cavity filter with rotary coupling regulation structure |
| CN102569978A (en) * | 2011-12-20 | 2012-07-11 | 摩比天线技术（深圳）有限公司 | Dielectric resonator tuning structure and tuning method |
| CN102683773A (en) * | 2012-04-28 | 2012-09-19 | 华为技术有限公司 | Adjustable filter and duplexer comprising same |
| CN101599569B (en) * | 2009-07-17 | 2013-06-05 | 华为技术有限公司 | Coupling structure and coaxial-cavity filter |
| CN103201897A (en) * | 2012-09-26 | 2013-07-10 | 华为技术有限公司 | Cavity filter |
| CN103367858A (en) * | 2012-03-31 | 2013-10-23 | 深圳光启创新技术有限公司 | Resonant cavity |
| CN113675554A (en) * | 2021-08-26 | 2021-11-19 | 深圳国人科技股份有限公司 | Coaxial cavity filter |
-
2007
- 2007-11-12 CN CN 200720170722 patent/CN201117780Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599569B (en) * | 2009-07-17 | 2013-06-05 | 华为技术有限公司 | Coupling structure and coaxial-cavity filter |
| CN102122742A (en) * | 2010-12-02 | 2011-07-13 | 宁波泰立电子科技有限公司 | Cavity filter with rotary coupling regulation structure |
| CN102569978A (en) * | 2011-12-20 | 2012-07-11 | 摩比天线技术（深圳）有限公司 | Dielectric resonator tuning structure and tuning method |
| CN103367858A (en) * | 2012-03-31 | 2013-10-23 | 深圳光启创新技术有限公司 | Resonant cavity |
| CN103367858B (en) * | 2012-03-31 | 2017-08-25 | 深圳光启创新技术有限公司 | A kind of resonator |
| CN102683773A (en) * | 2012-04-28 | 2012-09-19 | 华为技术有限公司 | Adjustable filter and duplexer comprising same |
| US9647307B2 (en) | 2012-04-28 | 2017-05-09 | Huawei Technologies Co., Ltd. | Tunable filter and duplexer including filter |
| CN103201897A (en) * | 2012-09-26 | 2013-07-10 | 华为技术有限公司 | Cavity filter |
| CN103201897B (en) * | 2012-09-26 | 2015-05-06 | 华为技术有限公司 | Cavity filter |
| CN113675554A (en) * | 2021-08-26 | 2021-11-19 | 深圳国人科技股份有限公司 | Coaxial cavity filter |
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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: 20080917 Termination date: 20101112 |