CN203218421U - Cavity filter - Google Patents
Cavity filter Download PDFInfo
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- CN203218421U CN203218421U CN 201320193133 CN201320193133U CN203218421U CN 203218421 U CN203218421 U CN 203218421U CN 201320193133 CN201320193133 CN 201320193133 CN 201320193133 U CN201320193133 U CN 201320193133U CN 203218421 U CN203218421 U CN 203218421U
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- cavity
- oscillator
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- connector
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- 239000004020 conductor Substances 0.000 claims abstract description 49
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 6
- 230000008054 signal transmission Effects 0.000 abstract description 6
- 150000001875 compounds Chemical group 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 230000005611 electricity Effects 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- AOWKSNWVBZGMTJ-UHFFFAOYSA-N calcium titanate Chemical compound [Ca+2].[O-][Ti]([O-])=O AOWKSNWVBZGMTJ-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a cavity filter comprising a cavity body and a connector, wherein the connector comprises a connector outer conductor connected with the cavity body. The cavity filter further comprises harmonic oscillators arranged inside the cavity body and a conductive elastic element arranged between the connector outer conductor and the cavity body, wherein each harmonic oscillator comprises a medium body and a conducting layer which is formed on the inner surface and/or outer surface of the medium body, and the conductive elastic element keeps in contact with the connector outer conductor and the cavity body respectively. According to the technical scheme, the conductive elastic element remains in contact with the connector outer conductor and the cavity body respectively so that the reliability of signal transmission is enhanced; and besides, the harmonic oscillators inside the cavity body each comprises the medium body and the conducting layer formed on the inner surface and/or outer surface of the medium body so as to form the harmonic oscillators each having a compound structure, therefore, quite high resistance to power is maintained, the size of the each harmonic oscillator is reduced at the same time, and accordingly, the size of the cavity filter is decreased.
Description
Technical field
The utility model relates to wireless communication field, relates in particular to a kind of cavity body filter.
Background technology
Cavity body filter is widely used in the communications field as a kind of frequency selection device.In the base station, cavity body filter can be used for filtering communication signal frequency outer clutter or interference signal, allows the interior signal of operating frequency obtain transmission.
There is following problem in cavity body filter of the prior art.At first, different cavity body filter kinds, though its structure is different with operation principle, all can signalization input and output (I/O) interface on its cavity, connector is connected with cavity by this interface.Fig. 1 shows the connected mode between the connector and cavity in the prior art, wherein only show the part of the cavity of cavity body filter, cavity body filter comprises cavity 100, connector comprises connector outer conductor 110 and connector inner wire 120, and connector outer conductor 110 is connected on the cavity 100 by a plurality of screws.In application, when being subjected to external force, connector outer conductor 110 does the time spent, and it is loosening to be easy to generation between connector outer conductor 110 and the cavity 100, and then causes loose contact between the two, thereby influences signal transfer quality.Secondly, among existing cavity body filter, adopt metal harmonic oscillator usually, owing to be subjected to the influence of frequency and electric property, can't be when keeping sufficiently high anti-power the volume of this cavity body filter be further reduced, cause the volume of whole system also can't reduce.Therefore, be necessary to improve at the above-mentioned defective that exists in the prior art.
The utility model content
Main purpose of the present utility model provides a kind of cavity body filter, and it has improved structure, makes that the signal transmission between connector and the cavity is more reliable, also is conducive to reduce the volume of cavity body filter when keeping sufficiently high anti-power.
To achieve these goals, according to the utility model, a kind of cavity body filter is provided, comprise cavity and connector, aforementioned connector comprises the connector outer conductor that is connected with aforementioned cavity, the aforementioned cavities fluid filter also comprises: harmonic oscillator, be arranged in aforementioned cavity, aforementioned harmonic oscillator comprises the medium body and is arranged on the outer surface of aforementioned medium body and/or the conductive layer of inner surface: conductive elastic component, be arranged between aforementioned connector outer conductor and the aforementioned cavity, and aforementioned conductive elastic component keeps in touch with aforementioned connector outer conductor and aforementioned cavity respectively.
Preferably, aforementioned connector outer conductor and aforementioned cavity interconnect by screw, and aforementioned screw passes aforementioned conductive elastic component.
Preferably, aforementioned connector outer conductor comprises ring flange, and aforementioned ring flange and aforementioned cavity interconnect by screw, and aforementioned screw passes aforementioned conductive elastic component.
Preferably, aforementioned conductive elastic component is the spring of electrically conductive elastic pad or conduction.
Preferably, aforementioned connector also comprises the connector inner wire, and aforementioned connector outer conductor is the ring bodies of inner hollow, and aforementioned connector inner wire passes the through hole on the aforementioned cavity, extends to the inside of aforementioned connector outer conductor.
Preferably, be filled with dielectric substance between aforementioned connector outer conductor and the aforementioned connector inner wire.
Preferably, aforementioned harmonic oscillator is resonant rod, and aforementioned medium body is tubular medium oscillator, and aforementioned conductive layer is tubular conduction oscillator.
Preferably, the aforementioned cavities fluid filter also comprises: loam cake, seal the top of aforementioned cavity; Lower cover seals the bottom of aforementioned cavity, and a plurality of aforementioned resonant rods are installed; A plurality of tuning screws, the part of each aforementioned tuning screw pass aforementioned loam cake and cooperate with corresponding aforementioned resonant rod.
Preferably, aforementioned tubular medium oscillator comprises tubular medium oscillator main body, aforementioned tubular conduction oscillator comprises tubular conduction oscillator main body, and aforementioned tubular medium oscillator main body is sheathed on outside the aforementioned tubular conduction oscillator main body or is embedded in the aforementioned tubular conduction oscillator main body.
Preferably, aforementioned tubular medium oscillator main body and/or aforementioned tubular conduction oscillator main body has diapire.
Preferably, aforementioned diapire has through hole.
Preferably, aforementioned tubular medium oscillator also comprises first flange that extends radially outwardly along the top of aforementioned tubular medium oscillator main body, aforementioned tubular conduction oscillator also comprises second flange that extends radially outwardly along the top of aforementioned tubular conduction oscillator main body, and aforementioned second flange is arranged on the upper surface of aforementioned first flange.
Preferably, also be provided with articulamentum between aforementioned first flange and aforementioned second flange.
Preferably, aforementioned conductive layer is metal level.
Preferably, aforementioned conductive layer comprises matrix and the surface metal-layer that forms on the surface of described matrix.
Preferably, aforementioned conductive layer is set directly at inner surface and/or the outer surface of aforementioned medium body, and perhaps aforementioned conductive layer is by connecting inner surface and/or the outer surface that media is arranged on aforementioned medium body.
Preferably, aforementioned conductive layer is arranged on the side and/or bottom surface of inner surface of aforementioned medium body.
Preferably, aforementioned conductive layer is to be attached to one or more on aforementioned this external surface of medium and/or the inner surface to have geometric conductive structure.
According to the technical solution of the utility model, owing between connector outer conductor and cavity, be provided with conductive elastic component, and described conductive elastic component keeps in touch with connector outer conductor and cavity respectively, thereby is conducive to improve the reliability of signal transmission between connector outer conductor and the cavity; And, harmonic oscillator in the cavity comprises the medium body and is arranged on the outer surface of medium body and/or the conductive layer of inner surface, thereby constitute the harmonic oscillator of composite construction, when keeping sufficiently high anti-power, reduce the volume of harmonic oscillator effectively, thereby be conducive to reduce the volume of cavity body filter.
Description of drawings
Figure of description is used to provide further understanding of the present utility model, constitutes a part of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings
Fig. 1 is the connector of prior art and the syndeton schematic diagram between the cavity;
Fig. 2 is the connector of the utility model embodiment and the syndeton schematic diagram between the cavity;
Fig. 3 is the structural representation of the cavity body filter of the utility model embodiment;
Fig. 4 is the structural representation of the resonant rod of the utility model first embodiment
Fig. 5 is the structural representation of the resonant rod of the utility model second embodiment.
Reference numeral: 100,10, cavity; 110,71, connector outer conductor; 120,72, connector inner wire; 71a, ring flange; 12, electrically conductive elastic pad; 20, loam cake; 21, tuning screw; 30, lower cover: 40, resonant rod; 50, tubular medium oscillator: 51, articulamentum; 60, tubular conduction oscillator.
Embodiment
Need to prove that under the situation that does not clearly limit or do not conflict, the feature among each embodiment of the present utility model can make up mutually.Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
In order to solve problems of the prior art, the utility model provides a kind of cavity body filter, this cavity body filter has improved structure, make that the signal transmission between connector and the cavity is more reliable, also be conducive to when keeping sufficiently high anti-power, reduce the volume of cavity body filter.
According to the utility model, a kind of cavity body filter is provided, comprise cavity and connector, aforementioned connector comprises the connector outer conductor that is connected with aforementioned cavity, the aforementioned cavities fluid filter also comprises: harmonic oscillator, be arranged in aforementioned cavity, aforementioned harmonic oscillator comprises the medium body and is arranged on the outer surface of aforementioned medium body and/or the conductive layer of inner surface; Conductive elastic component is arranged between aforementioned connector outer conductor and the aforementioned cavity, and aforementioned conductive elastic component keeps in touch with aforementioned connector outer conductor and aforementioned cavity respectively.
Wherein, harmonic oscillator can adopt the form of resonant rod, also can adopt the harmonic oscillator of other various versions, need only this harmonic oscillator and comprise the medium body and be arranged on the outer surface of medium body and/or the conductive layer of inner surface, thereby constitute the harmonic oscillator of composite construction.Conductive layer can be metal level, also can comprise matrix and the surface metal-layer that is formed on the matrix surface.Conductive elastic component then can adopt the spring of electrically conductive elastic pad, conduction, perhaps other rubber-like components and parts that can conduct electricity.
Certainly, conductive layer also can be other version, for example for Direct Electroplating or evaporation or be splashed to metal level on the medium body, also can have geometric conductive structure for being attached to one or more on the medium body surface (outer surface and/or inner surface), random geometries such as the split ring resonator that this conductive structure can constitute for I-shaped metal wire, metal wire, rectangular metal sheet.
Fig. 2 is the connector of the utility model embodiment and the syndeton schematic diagram between the cavity, wherein only shows the part of the cavity of cavity body filter.As shown in Figure 2, the cavity connector comprises cavity 10 and connector, and wherein, connector comprises connector outer conductor 71 and connector inner wire 72.
Fig. 2 shows the structure of cavity 10 inside of partial cutaway demonstration, and therefrom as can be seen: connector outer conductor 71 is connected to cavity 10 by a plurality of screw (not shown); Electrically conductive elastic pad 12 is arranged between connector outer conductor 71 and the cavity 10, and in this syndeton, electrically conductive elastic pad 12 remains with cavity 10 with connector outer conductor 71 respectively and contacts.
Electrically conductive elastic pad 12 has certain elasticity, can bear pressure when connector outer conductor 71 closely contacts with cavity 10, and deformation takes place.Like this, even connector outer conductor 71 is owing to be subjected to for example effect of external force, make its with cavity 10 between be connected and take place when loosening, electrically conductive elastic pad 12 also can be under the effect of elastic recovery, remain with cavity 10 with connector outer conductor 71 and to contact, thereby guaranteed the reliable connection between connector outer conductor 71 and the cavity 10, guaranteed the quality of signal transmission.
Certainly, also can not pass through screw between connector outer conductor 71 and the cavity 10, but connect by other common mode, for example be threaded, bolt connection etc.Except electrically conductive elastic pad 12, also can adopt other common elastomeric elements such as spring, this elastomeric element should conduct electricity certainly, so that the transmission signal.
Preferably, as shown in Figure 2, connector outer conductor 71 can also comprise ring flange 71a, and a plurality of screws can pass the through hole that ring flange 71a go up to arrange, and then pass the through hole on the electrically conductive elastic pad 12, screws on the cavity in the corresponding screwed hole.In this way, the position of electrically conductive elastic pad 12 is not easy to take place play, is conducive to realize more reliably that the signal between connector outer conductor and the cavity transmits.When conductive elastic component adopts spring, can on the excircle of each screw, be arranged with spring respectively, thereby also can realize similar effects.
Refer again to Fig. 2, connector outer conductor 71 is the ring bodies of inner hollow, and connector inner wire 72 can pass the through hole on the cavity 10, extends to the inside of the hollow of connector outer conductor 71 then.Can be filled with dielectric substance between connector outer conductor 71 and the connector inner wire 72.Dielectric substance refer to resistivity surpass 10 Europe/centimetre material.
Fig. 3 is the structural representation of the cavity body filter of the utility model embodiment, and this figure is explosive view, shows the overall structure of cavity body filter, and wherein, cavity body filter comprises cavity 10, loam cake 20, lower cover 30.Wherein, a plurality of installing holes have been offered at loam cake 10 in the top of loam cake 20 closed cavities 10, and a plurality of mounting screws are installed to loam cake 10 on the cavity 10 by this installing hole.The bottom of lower cover 30 closed cavities 10 is provided with a plurality of resonant rods 40 at lower cover 30.Lower cover 30 also can be installed on the cavity 10 by a plurality of mounting screws.Also offered a plurality of tuned windows on the loam cake 10, the part of each in a plurality of tuning screws 21 matches with corresponding resonant rod 40 by this tuned window, thereby realizes tuber function.
Fig. 4 is the structural representation of the resonant rod of the utility model first embodiment, wherein shows a kind of structure of resonant rod.As shown in Figure 4, resonant rod comprises tubular medium oscillator 50 and tubular conduction oscillator 60.Tubular medium oscillator 50 comprises the cylindric medium oscillator main body of open top bottom lock.Tubular conduction oscillator 60 comprises cylindric conduction oscillator main body, the equal opening in its top and bottom, thereby the through hole of formation up/down perforation.And, tubular medium oscillator main body surrounds tubular conduction oscillator main body from the outside, that is, tubular medium oscillator main body is sheathed on the outside of tubular conduction oscillator main body, tubular medium oscillator main body has covered most of outer surface of tubular conduction oscillator main body, comprises outer circumference surface and bottom surface.
And tubular medium oscillator 50 can also comprise first flange, and its top in tubular medium oscillator main body extends radially outward, and forms flange shape.Equally, tubular conduction oscillator 60 also can comprise second flange, and its top in tubular conduction oscillator main body extends radially outward, and forms flange shape.And second flange-shape is formed in the upper surface of first flange, and namely the lower surface of second flange is close to the upper surface of first flange.The radially outer edge of first, second flange can be mutually concordant.
Fig. 5 is the structural representation of the resonant rod of the utility model second embodiment, wherein shows the another kind of structure of resonant rod, is illustrated as the state in this resonant rod installation process, and state and Fig. 4 of installing are similar, and two parts fit tightly.As shown in Figure 5, resonant rod comprises tubular medium oscillator 50 and tubular conduction oscillator 60.Tubular conduction oscillator 60 comprises cylindric conduction oscillator main body, the equal opening in its top and bottom, thereby the through hole of formation up/down perforation.
Equally, tubular medium oscillator 50 can also comprise first flange, and its top in tubular medium oscillator main body extends radially outward, and forms flange shape.Equally, tubular conduction oscillator 60 also can comprise second flange, and its top in tubular conduction oscillator main body extends radially outward, and forms flange shape.And second flange-shape is formed in the upper surface of first flange, and namely the lower surface of second flange is close to the upper surface of first flange.The radially outer edge of first, second flange can be concordant.
In addition, with reference to Fig. 5, also be provided with articulamentum 51 between first flange and second flange, this articulamentum links together first, second flange securely, thereby has improved the structural strength of whole resonant rod.This articulamentum 51 can be soldering paste etc., is used for tubular medium oscillator 50 and tubular conduction oscillator 60 are welded together.
In Fig. 4 or resonant rod structure shown in Figure 5, tubular medium oscillator 50 is medium bodies, and at this moment, tubular conduction oscillator 60 can be regarded as conductive layer.Certainly, tubular medium oscillator 50 also can conduct electricity oscillator 60 mutual reversing of position with tubular.And tubular medium oscillator main body and/or tubular conduction oscillator main body can have diapire, can have through hole on the diapire, and this through hole is conducive to install resonant rod.Tubular medium oscillator main body and tubular conduction oscillator main body can also be square other structures that waits except adopting cylindrical structure.
Conductive layer can be set directly at inner surface and/or the outer surface of medium body, and perhaps, conductive layer can be by connecting inner surface and/or the outer surface that media is arranged on the medium body.This connection media can be common syndeton such as weld layer for example.All or part of zone between conductive layer and the medium body (for example, between the bottom and tubular medium oscillator 50 of tubular conduction oscillator 60) can adopt the mode of welding to link together, thereby improves connection stability.Especially, when the inner surface of medium body had side and/or bottom surface, conductive layer can be arranged on the side and/or bottom surface of inner surface of medium body.
The medium body can adopt dielectric constant to make greater than 1 material, for example ceramic material, aluminium oxide, barium titanate, calcium titanate etc.Conductive layer can be metal level, both can be made by single metal, also can comprise matrix and the surface metal-layer that forms on the surface of this matrix.Wherein, metal can adopt common metal material and oxide thereof, for example gold, silver, copper, iron, aluminium oxide, zirconia etc., and matrix can adopt the used dielectric substance of aforementioned medium body.
Certainly, except resonant rod, can also adopt the harmonic oscillator of other various versions, need only this harmonic oscillator and comprise the medium body and be arranged on the outer surface of medium body and/or the conductive layer of inner surface, thereby constitute the harmonic oscillator of composite construction.
Because the harmonic oscillator that the utility model provides comprises medium body and the conductive layer with different materials, formed composite construction like this, compare with the harmonic oscillator that the such homogenous material of available technology adopting metal is made, not only reduced the volume of harmonic oscillator and corresponding filter, also owing to increased dielectric substance, can keep sufficiently high anti-power.
The technical scheme that provides according to the utility model, on the one hand, between connector outer conductor and cavity, be provided with conductive elastic component, and described conductive elastic component keeps in touch with connector outer conductor and cavity respectively, thereby is conducive to improve the reliability of signal transmission between connector outer conductor and the cavity; On the other hand, harmonic oscillator in the cavity comprises the medium body and is arranged on the outer surface of medium body and/or the conductive layer of inner surface, thereby constitute the harmonic oscillator of composite construction, when keeping sufficiently high anti-power, reduce the volume of harmonic oscillator effectively, thereby be conducive to reduce the volume of cavity body filter.
Cavity body filter of the present utility model has been described according to embodiment in the front, but this device is not limited in the parts described in the described embodiment and/or annexation, for example, be not limited to screw between connector outer conductor and the cavity and connect, can adopt various connected modes; Conductive elastic component also is not limited to the elastomeric pad or the spring that conduct electricity, can be the rubber-like parts of various conductions; Harmonic oscillator is not limited to adopt the version of resonant rod, as long as conductive layer is formed on inner surface and/or the outer surface of medium body.
The above is only own for preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (18)
1. a cavity body filter comprises cavity (10) and connector, and described connector comprises the connector outer conductor (71) that is connected with described cavity (10), it is characterized in that described cavity body filter also comprises:
Harmonic oscillator is arranged in described cavity (10), and described harmonic oscillator comprises the medium body and is arranged on the outer surface of described medium body and/or the conductive layer of inner surface;
Conductive elastic component is arranged between described connector outer conductor (71) and the described cavity (10), and described conductive elastic component keeps in touch with described connector outer conductor (71) and described cavity (10) respectively.
2. cavity body filter according to claim 1 is characterized in that, described connector outer conductor (71) interconnects by screw with described cavity (10), and described screw passes described conductive elastic component.
3. cavity body filter according to claim 1, it is characterized in that, described connector outer conductor (71) comprises ring flange (71a), and described ring flange (71a) interconnects by screw with described cavity (10), and described screw passes described conductive elastic component.
4. according to claim 2 or 3 described cavity body filters, it is characterized in that described conductive elastic component is the spring of electrically conductive elastic pad (12) or conduction.
5. according to claim 2 or 3 described cavity body filters, it is characterized in that, described connector also comprises connector inner wire (72), described connector outer conductor (71) is the ring bodies of inner hollow, described connector inner wire (72) passes the through hole on the described cavity (10), extends to the inside of described connector outer conductor (71).
6. cavity body filter according to claim 5 is characterized in that, is filled with dielectric substance between described connector outer conductor (71) and the described connector inner wire (72).
7. cavity body filter according to claim 1, it is characterized in that, described harmonic oscillator is resonant rod (40), described medium body is tubular medium oscillator (50), described conductive layer is tubular conduction oscillator (60), and described tubular medium oscillator is sheathed on outside the described tubular conduction oscillator or is embedded in the described tubular conduction oscillator.
8. cavity body filter according to claim 7 is characterized in that, described cavity body filter also comprises
Loam cake (20) seals the top of described cavity (10);
Lower cover (30) seals the bottom of described cavity (10), and a plurality of described resonant rods (40) are installed
A plurality of tuning screws (21), the part of each described tuning screw (21) pass described loam cake (20) and cooperate with corresponding described resonant rod (40).
9. cavity body filter according to claim 7 is characterized in that, described tubular medium oscillator (50) comprises tubular medium oscillator main body, and described tubular conduction oscillator (60) comprises tubular conduction oscillator main body.
10. cavity body filter according to claim 9 is characterized in that, described tubular medium oscillator main body and/or described tubular conduction oscillator main body have diapire.
11. cavity body filter according to claim 10 is characterized in that, described diapire has through hole.
12. according to each described cavity body filter in the claim 9 to 11, it is characterized in that, described tubular medium oscillator (50) also comprises first flange that extends radially outwardly along the top of described tubular medium oscillator main body, described tubular conduction oscillator (60) also comprises second flange that extends radially outwardly along the top of described tubular conduction oscillator main body, and described second flange is arranged on the upper surface of described first flange.
13. cavity body filter according to claim 12 is characterized in that, also is provided with articulamentum (51) between described first flange and described second flange.
14. cavity body filter according to claim 1 is characterized in that, described conductive layer is metal level.
15. cavity body filter according to claim 1 is characterized in that, described conductive layer comprises matrix and the surface metal-layer that forms on the surface of described matrix.
16. cavity body filter according to claim 1, it is characterized in that, described conductive layer is set directly at inner surface and/or the outer surface of described medium body, and perhaps described conductive layer is by connecting inner surface and/or the outer surface that media is arranged on described medium body.
17. cavity body filter according to claim 1 is characterized in that, described conductive layer is arranged on the side and/or bottom surface of inner surface of described medium body.
18. cavity body filter according to claim 1 is characterized in that, described conductive layer is to be attached to one or more on described this external surface of medium and/or the inner surface to have geometric conductive structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320193133 CN203218421U (en) | 2013-04-16 | 2013-04-16 | Cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320193133 CN203218421U (en) | 2013-04-16 | 2013-04-16 | Cavity filter |
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| Publication Number | Publication Date |
|---|---|
| CN203218421U true CN203218421U (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320193133 Expired - Fee Related CN203218421U (en) | 2013-04-16 | 2013-04-16 | Cavity filter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329044A (en) * | 2016-08-24 | 2017-01-11 | 安徽华东光电技术研究所 | Ku-waveband small cavity filter |
| WO2018119669A1 (en) * | 2016-12-27 | 2018-07-05 | 华为技术有限公司 | Resonator and communication device |
| CN110783674A (en) * | 2019-12-03 | 2020-02-11 | 迈特通信设备（苏州）有限公司 | Broadband small-size filter port tapping structure |
-
2013
- 2013-04-16 CN CN 201320193133 patent/CN203218421U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329044A (en) * | 2016-08-24 | 2017-01-11 | 安徽华东光电技术研究所 | Ku-waveband small cavity filter |
| WO2018119669A1 (en) * | 2016-12-27 | 2018-07-05 | 华为技术有限公司 | Resonator and communication device |
| US10840577B2 (en) | 2016-12-27 | 2020-11-17 | Huawei Technologies Co., Ltd. | Resonator and communications apparatus |
| CN110783674A (en) * | 2019-12-03 | 2020-02-11 | 迈特通信设备（苏州）有限公司 | Broadband small-size filter port tapping structure |
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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 |
Granted publication date: 20130925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |