CN208062226U - A kind of bandstop filter - Google Patents
A kind of bandstop filter Download PDFInfo
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- CN208062226U CN208062226U CN201820483351.6U CN201820483351U CN208062226U CN 208062226 U CN208062226 U CN 208062226U CN 201820483351 U CN201820483351 U CN 201820483351U CN 208062226 U CN208062226 U CN 208062226U
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- coupling piece
- cavity
- bandstop filter
- resonator
- transmission coupling
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Abstract
The utility model is suitable for wave filter technology field.A kind of bandstop filter is provided, including：The both ends of cavity, cavity are respectively equipped with signal input terminal and signal output terminal；Cover board；The transmission coupling piece being connected in cavity and with signal input terminal and signal output terminal respectively；Multiple resonators in cavity, multiple resonators are arranged along the length direction of transmission coupling piece in multiple row；Multiple support columns of cavity are fixed on, each support column and a resonator separations are arranged；And multiple coupling assemblies, coupling assembly include the connection sheet being connected with transmission coupling piece, are sheathed on the insulation sleeve of support column and are sheathed on the metal Coupling piece of insulation sleeve, metal Coupling piece is connected with connection sheet and is coupled with a resonator.Bandstop filter provided by the utility model is arranged by the length direction by multiple resonators in cavity along transmission coupling piece in multiple row, makes full use of cavity space, keeps the overall dimensions of filter smaller, is conducive to the miniaturization of filter.
Description
Technical field
The utility model belongs to wave filter technology field more particularly to a kind of bandstop filter.
Background technology
In modern wireless communication systems, the filter component part important as one is widely used.It faces the future
Intelligentized wireless communications application demand, modern microwave communication system also proposed higher want to the performance and structure of filter
It asks, and the Miniaturization Research of filter also becomes the hot spot of research.
In the prior art, the usually elongated arrangement of the resonator in bandstop filter, i.e., multiple resonators are in "-" type
Distribution, when the quantity of resonator is more so that the entire length of bandstop filter is longer, to be unfavorable for the small-sized of filter
Change.
Utility model content
The utility model provides a kind of bandstop filter, it is intended to which the bandstop filter internal resonator for solving the prior art is usual
Elongated arrangement, when the quantity of resonator is more so that the entire length of bandstop filter is longer, to be unfavorable for filtering
The problem of miniaturization of device.
The utility model is realized in this way a kind of bandstop filter, including：
The both ends of cavity, the cavity are respectively equipped with signal input terminal and signal output terminal；
It is covered on the cover board of the cavity；
Transmission coupling piece in the cavity, described transmission coupling piece one end are connected with the signal input terminal,
The other end is connected with the signal output terminal；
Multiple resonators in the cavity, multiple resonators are respectively arranged on the two of the transmission coupling piece
Side, and multiple resonators are arranged along the length direction of the transmission coupling piece in multiple row；
Multiple support columns of the cavity are fixed on, each support column and the resonator separations are arranged；And
Multiple coupling assemblies, the coupling assembly include with it is described transmission coupling piece be connected connection sheet, be sheathed on described in
The insulation sleeve of support column and the metal Coupling piece for being sheathed on the insulation sleeve, the metal Coupling piece are connected with the connection sheet
And it is coupled with a resonator.
Preferably, described connection sheet one end is abutted with the metal Coupling piece, and is fixed on the support column by screw
On.
Preferably, one end that the connection sheet is abutted with the transmission coupling piece is equipped with mounting hole, the top of the support column
Portion is equipped with tapped mounting hole, and the screw passes through the mounting hole and is threadedly coupled with the mounting hole.
Preferably, the insulation sleeve includes the pedestal abutted with the cavity and the insulating body on the pedestal,
The metal Coupling piece is sheathed on the insulating body and is supported on the pedestal.
Preferably, the support column is integrally formed with the cavity.
Preferably, the cavity includes bottom wall and encloses the side wall set on the bottom wall side, is equipped in the cavity multiple
Diaphragm plate along housing width direction setting and the vertical clapboard along cavity length direction setting, the vertical clapboard are same
When pass through multiple diaphragm plates, and the vertical clapboard simultaneously be vertically arranged with multiple diaphragm plates, the vertical clapboard and institute
It states diaphragm plate and the side wall surrounds multiple host cavities, a resonator, the transmission are equipped in each host cavity
Coupling piece is fixed on the vertical clapboard side and is distributed along the length direction of the vertical clapboard.
Preferably, the bandstop filter further includes the multiple insulation fixing-holding racks for being fixed on the cover board, the transmission coupling
Piece is closed to be fixed on multiple insulation fixing-holding racks.
Preferably, the vertical clapboard offers a notch, and the notch is connected to two receipts of the vertical clapboard both sides
Vessel, wherein the connection sheet one end passes through the notch and is connected with the transmission coupling piece.
Preferably, the resonator is arranged in arrays, and the quantity of the resonator is 4~21, the resonator arrangement
At 2~7 row, 2~3 rows.
Preferably, the cross section of the transmission coupling piece is rectangular, and cross-sectional area is 6~18mm2。
Bandstop filter provided by the utility model by multiple resonators in cavity by being respectively arranged on the biography
The both sides of defeated coupling piece, and multiple resonators are arranged along the length direction of the transmission coupling piece in multiple row, due to resonance
Device is arranged in the both sides of transmission coupling piece, can make full use of space in cavity, can reduce the entire length of cavity, so as to shorten humorous
It shakes the spread length of device, keeps the overall dimensions of filter smaller, be conducive to the miniaturization of filter.
Description of the drawings
Fig. 1 is the three-dimensional structure diagram of the utility model bandstop filter；
Fig. 2 is the stereochemical structure exploded view of the utility model bandstop filter；
Fig. 3 is the three-dimensional structure diagram after the removal cover board of the utility model bandstop filter；
Fig. 4 is the three-dimensional structure diagram of the cavity of the utility model bandstop filter；
Fig. 5 is the stereochemical structure exploded view of coupling assembly in the utility model bandstop filter；
Fig. 6 is the enlarged drawing of part A in Fig. 3；
Fig. 7 is the enlarged drawing of part B in Fig. 3；
Fig. 8 is the three-dimensional structure diagram of insulation fixing-holding rack in the utility model bandstop filter.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Bandstop filter provided by the utility model by multiple resonators in cavity by being respectively arranged on transmission coupling piece
Both sides, and multiple resonators along transmission coupling piece length direction in multiple row be arranged, due to resonator be arranged in transmission couple
The both sides of piece can reduce the entire length of cavity, so as to shorten the spread length of resonator, make the overall dimensions of filter compared with
It is small, space in cavity can be made full use of, the miniaturization of filter is conducive to.
Please refer to Fig. 1-Fig. 5, wherein Fig. 1 is the three-dimensional structure diagram of the utility model bandstop filter；Fig. 2 is this practicality
The stereochemical structure exploded view of novel bandstop filter；Fig. 3 is the three-dimensional knot after the removal cover board of the utility model bandstop filter
Composition；Fig. 4 is the three-dimensional structure diagram of the cavity of the utility model bandstop filter；Fig. 5 is in the utility model bandstop filter
The stereochemical structure exploded view of coupling assembly.The bandstop filter includes：The both ends of cavity 1, cavity 1 are respectively equipped with signal input part
Son 2 and signal output terminal 3；It is covered on the cover board 4 of cavity 1；Transmission coupling piece 5 in cavity 1 transmits coupling piece 5 one
End is connected with signal input terminal 2, and the other end is connected with signal output terminal 3；Multiple resonators 6 in cavity 1, it is multiple
Resonator 6 is respectively arranged on the both sides of transmission coupling piece 5, and multiple resonators 6 are set along the length direction of transmission coupling piece 5 in multiple row
It sets；Multiple support columns 7 of cavity 1 are fixed on, each support column 7 and a resonator 6 interval are arranged；And multiple coupling assemblies,
Coupling assembly includes the connection sheet 81 being connected with transmission coupling piece 5, is sheathed on the insulation sleeve 82 of support column 7 and is sheathed on insulation
The metal Coupling piece 83 of set 82, metal Coupling piece 83 are connected with connection sheet 81 and are coupled with a resonator 6.
In the utility model embodiment, signal input terminal 2 is used for input signal, and signal transmits simultaneously along transmission coupling piece 5
It is filtered by multiple resonators 6, then filtered signal is exported from signal output terminal 3.
In the utility model embodiment, multiple resonators 6 are respectively arranged on the both sides of transmission coupling piece 5, and multiple resonators 6
Length direction along transmission coupling piece 5 is arranged in multiple row, since resonator 6 is arranged in the both sides of transmission coupling piece 5, can reduce chamber
The entire length of body 1 keeps the overall dimensions of filter smaller, is conducive to filter so as to shorten the spread length of resonator 6
Miniaturization.
As one embodiment of the utility model, cavity 1 includes bottom wall 11 and encloses the side wall 12 set on 11 side of bottom wall,
In cavity 11 equipped with multiple diaphragm plates 13 along the setting of 11 width direction of cavity and along the setting of 11 length direction of cavity it is perpendicular every
Plate 14, vertical clapboard 14 is also cross multiple diaphragm plates 13, and vertical clapboard 14 is vertically arranged with multiple diaphragm plates 13 simultaneously, vertical clapboard
14 surround multiple host cavities 15 with diaphragm plate 13 and side wall 12, and host cavity 15 is respectively arranged on the both sides of vertical clapboard 14, and along biography
The length direction of defeated coupling piece 5 is arranged in multiple row, and a resonator 6 is equipped in each host cavity 15, and transmission coupling piece 5 is fixed on perpendicular
14 side of partition board is simultaneously distributed along the length direction of vertical clapboard 14.
Fig. 6 is please referred to, Fig. 6 is the enlarged drawing of part A in Fig. 3.As one embodiment of the utility model, vertical clapboard 14
A notch 141 is offered, notch 141 is connected to two host cavities 15 of 14 both sides of vertical clapboard, and wherein 81 one end of a connecting piece passes through
Notch 141 is simultaneously connected with transmission coupling piece 5, so that transmission coupling piece 5 is not necessarily in each host cavity 15, without changing transmission coupling
The shape for closing piece 5 convenient for the processing of transmission coupling piece 5, and reduces the occupied space of transmission coupling piece 5.
Fig. 7 is please referred to, Fig. 7 is the enlarged drawing of part B in Fig. 3.In the utility model embodiment, the knot of each coupling assembly
Structure all same, insulation sleeve 82 and metal Coupling piece 83 are cylindrical in shape structure, and connection sheet 81 can be welding with transmission coupling piece 5,
It can also be clamped, metal Coupling piece 83 is electrical connected with connection sheet 81 and carries out feed with a resonator 6 and couples, by the way that gold is arranged
Belong to coupling piece 83 to couple with the formation feed of resonator 6, has not only played couple feed and carried out energy transmission, but also played to direct current
Conductive insulating effect so that the transmission coupling piece 5, which can lead to direct current, can also carry out energy transmission.
As one embodiment of the utility model, 81 one end of connection sheet is abutted with metal Coupling piece 83, and passes through screw
84 are fixed on support column 7, are convenient for the disassembly and installation of connection sheet 81 and metal Coupling piece 83.
As one embodiment of the utility model, the total length of each connection sheet 81 is the quarter-wave for inputting frequency
Long, which is the total length after connection sheet 81 stretches, by setting the total length of each connection sheet 81 to input frequency
Quarter-wave, keep 81 total length of connection sheet it is constant under the premise of, the shape of connection sheet 81 can arbitrarily roll over shape, and right
The standing wave of connection sheet 81 will not have an impact, the shape no requirement (NR) to connection sheet 81, to be conducive to being processed into for connection sheet 81
Type.
As one embodiment of the utility model, one end that connection sheet 81 is abutted with transmission coupling piece 5 is equipped with mounting hole
811, the top of support column 7 is equipped with tapped mounting hole, and screw 84 passes through mounting hole 811 and is threadedly coupled with mounting hole.
Insulation sleeve 82, metal Coupling piece 83 are cylindrical in shape structure, and when installing connection sheet 81 with transmission coupling piece 5, connection sheet 81 is set
There is one end of mounting hole 811 to be connected to 5 top of metal Coupling piece, screw 84 is then passed through into mounting hole 811 and metal Coupling piece 5
Top, and be threadedly coupled with mounting hole, 81 one end of connection sheet made to be fixedly secured on support column 7 and be supported with metal Coupling piece 5
It connects.
As one embodiment of the utility model, insulation sleeve 82 include the pedestal 821 abutted with cavity 1 and be set to pedestal
Insulating body 822 on 821, metal Coupling piece 5 are sheathed on insulating body 822 and are supported on pedestal 821, avoid metal Coupling
Piece 5 is contacted with 1 inner wall of cavity.
As one embodiment of the utility model, support column 7 is integrally formed with cavity 1, facilitates the processing of support column 7.
As one embodiment of the utility model, bandstop filter further includes the multiple insulation fixing for being fixed on cover board 4
Frame 9, transmission coupling piece 5 are fixed on multiple insulation fixing-holding racks 9, facilitate constant transmissions coupling piece 5.
Fig. 8 is please referred to, Fig. 8 is the three-dimensional structure diagram of insulation fixing-holding rack in the utility model bandstop filter.As this reality
With novel one embodiment, each fixing-holding rack 9 that insulate is equipped with card slot 91, and transmission coupling piece 5 is arranged in card slot 91, and being convenient for will
It transmits coupling piece 5 to be fixed on insulation fixing-holding rack 9, and convenient for disassembling transmission coupling piece 5 from insulation fixing-holding rack 9.
As one embodiment of the utility model, resonator 6 is arranged in arrays, and the quantity of resonator 6 is 4~21,
Resonator 6 is arranged in 2~7 row, 2~3 rows.The quantity of resonator 6 can be configured according to actual needs, what resonator 6 arranged
Line number and columns can be also configured according to actual needs.
As a preferred embodiment of the utility model, the quantity of resonator 6 is six, and six resonators 6 are along transmission
The length direction of coupling piece 5 is distributed in three row, two row, 6 setting facing each other of each two resonator.Such arrangement mode compared to
The elongated arrangement mode of multiple resonators 6, can reduce the length of 1 half of cavity, so as to make the entirety of bandstop filter
Length reduction's half.
As one embodiment of the utility model, the cross section for transmitting coupling piece 5 is rectangular, and cross-sectional area is 6
~18mm2 makes transmission coupling piece 5 pass through current capacity by setting the cross-sectional area for transmitting coupling piece 5 to 6~18mm2
By force, lightning protection properties are good.
Bandstop filter provided by the utility model by multiple resonators in cavity by being respectively arranged on transmission coupling piece
Both sides, and multiple resonators along transmission coupling piece length direction in multiple row be arranged, due to resonator be arranged in transmission couple
The both sides of piece can reduce the entire length of cavity, so as to shorten the spread length of resonator, make the overall dimensions of filter compared with
It is small, be conducive to the miniaturization of filter.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
All any modification, equivalent and improvement etc., should be included in the guarantor of the utility model made by within novel spirit and principle
Within the scope of shield.
Claims (10)
1. a kind of bandstop filter, which is characterized in that including：
The both ends of cavity, the cavity are respectively equipped with signal input terminal and signal output terminal；
It is covered on the cover board of the cavity；
Transmission coupling piece in the cavity, described transmission coupling piece one end is connected with the signal input terminal, another
End is connected with the signal output terminal；
Multiple resonators in the cavity, multiple resonators are respectively arranged on the both sides of the transmission coupling piece, and
Multiple resonators are arranged along the length direction of the transmission coupling piece in multiple row；
Multiple support columns of the cavity are fixed on, each support column and the resonator separations are arranged；And
Multiple coupling assemblies, the coupling assembly include the connection sheet being connected with the transmission coupling piece, are sheathed on the support
The insulation sleeve of column and the metal Coupling piece for being sheathed on the insulation sleeve, the metal Coupling piece be connected with the connection sheet and with
The one resonator coupling.
2. bandstop filter as described in claim 1, which is characterized in that described connection sheet one end is supported with the metal Coupling piece
It connects, and is fixed on the support column by screw.
3. bandstop filter as claimed in claim 2, which is characterized in that the connection sheet is abutted with the transmission coupling piece
One end is equipped with mounting hole, and the top of the support column is equipped with tapped mounting hole, and the screw passes through the mounting hole simultaneously
It is threadedly coupled with the mounting hole.
4. bandstop filter as described in claim 1, which is characterized in that the insulation sleeve includes the bottom abutted with the cavity
Seat and the insulating body on the pedestal, the metal Coupling piece are sheathed on the insulating body and are supported in the pedestal
On.
5. bandstop filter as described in claim 1, which is characterized in that the support column is integrally formed with the cavity.
6. bandstop filter as described in claim 1, which is characterized in that the cavity includes bottom wall and encloses set on the bottom wall
The side wall of side, the cavity are interior equipped with multiple diaphragm plates along housing width direction setting and along the cavity length
The vertical clapboard of direction setting, the vertical clapboard also cross multiple diaphragm plates, and the vertical clapboard simultaneously with it is multiple described
Diaphragm plate is vertically arranged, and the vertical clapboard surrounds multiple host cavities with the diaphragm plate and the side wall, each receiving
Intracavitary is equipped with a resonator, and the transmission coupling piece is fixed on the vertical clapboard side and along the length side of the vertical clapboard
To distribution.
7. bandstop filter as described in claim 1, which is characterized in that the bandstop filter further includes being fixed on the lid
Multiple insulation fixing-holding racks of plate, the transmission coupling piece are fixed on multiple insulation fixing-holding racks.
8. bandstop filter as claimed in claim 6, which is characterized in that the vertical clapboard offers a notch, the notch
Be connected to two host cavities of the vertical clapboard both sides, wherein the connection sheet one end pass through the notch and with the biography
Defeated coupling piece is connected.
9. bandstop filter as described in claim 1, which is characterized in that the resonator is arranged in arrays, the resonator
Quantity be 4~21, the resonator be arranged in 2~7 row, 2~3 rows.
10. bandstop filter as described in claim 1, which is characterized in that the cross section of the transmission coupling piece is rectangular, and
Cross-sectional area is 6~18mm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820483351.6U CN208062226U (en) | 2018-04-08 | 2018-04-08 | A kind of bandstop filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820483351.6U CN208062226U (en) | 2018-04-08 | 2018-04-08 | A kind of bandstop filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208062226U true CN208062226U (en) | 2018-11-06 |
Family
ID=63986823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820483351.6U Active CN208062226U (en) | 2018-04-08 | 2018-04-08 | A kind of bandstop filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208062226U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461998A (en) * | 2018-11-27 | 2019-03-12 | 苏州工业园区艺达精密机械有限公司 | Wideband combiner antenna opening blocking input coupling structure |
| CN109713413A (en) * | 2019-02-25 | 2019-05-03 | 江苏贝孚德通讯科技股份有限公司 | A kind of coupled structure of band-stop response communication headend equipment component |
-
2018
- 2018-04-08 CN CN201820483351.6U patent/CN208062226U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461998A (en) * | 2018-11-27 | 2019-03-12 | 苏州工业园区艺达精密机械有限公司 | Wideband combiner antenna opening blocking input coupling structure |
| CN109713413A (en) * | 2019-02-25 | 2019-05-03 | 江苏贝孚德通讯科技股份有限公司 | A kind of coupled structure of band-stop response communication headend equipment component |
| 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 |
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Address after: 315000 floor 1-2, building 8, 818 Jinyuan Road, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: Ningbo Huaci Communication Technology Co.,Ltd. Address before: 2 / F, building 3, 818 Jinyuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 315000 Patentee before: NINGBO HUACI COMMUNICATION TECHNOLOGY Co.,Ltd. |