CN209169350U - A kind of filter - Google Patents
A kind of filter Download PDFInfo
- Publication number
- CN209169350U CN209169350U CN201920077171.2U CN201920077171U CN209169350U CN 209169350 U CN209169350 U CN 209169350U CN 201920077171 U CN201920077171 U CN 201920077171U CN 209169350 U CN209169350 U CN 209169350U
- Authority
- CN
- China
- Prior art keywords
- filter
- bending part
- resonator
- coupling
- partition wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The utility model discloses a kind of filter, including filter frame and at least two resonators, it is of coupled connections between two neighboring resonator, each resonator includes main part and bending part, one end of main part and filter frame, which are integrally formed, to be grounded, and bending part is formed by the other end bending of main part.The utility model realizes volume smallerization of filter by the specific structure of resonator, while but also filter realizes that cross-linked mode is more succinct, more beneficial to the overall performance of product.
Description
Technical field
The utility model relates to a kind of filters, more particularly, to a kind of filter of volume smallerization.
Background technique
It is more and more harsher to the volume requirement of filter with the development that the communication technology is maked rapid progress.It generally requires having
Design resonator and inhibition zero point inhibit to require in the short space of limit to meet Insertion Loss inside and outside band, and traditional several filters
Wave device has been difficult to meet the design requirement under this micro volume.
Such as application No. is: in the patent of CN201710149229.5, disclose a kind of filter of frame structure mode,
In the program, the frame two sides of hollow is open architecture, and lower portion is divided into two spaces by partition wall.Perpendicular to this point
There is one-piece type resonator in next door.Resonator bending is L-type or T-type to reduce space requirement, but such form is to filtering
Device miniaturization volume still has limitation, it is difficult to meet the design requirement of filter micro volume.
Also, above-mentioned resonator bending is the structure of L-type or T-type, also has limitation to the coupled modes between resonator.
Specifically, in the two spaces divided by partition wall, signal path is with the transmission of U-shaped state.In the transmission path of U-shaped in order to
It realizes cross-coupling, needs that conductor is added in two non-adjacent resonators.At this time in order to realize that capacitive cross coupling will
Resonator and conductor are fixed in the form of opening a way, and conductor is first fixed on insulator thus, then this accessory is fixed on shell
In.If realizing perceptual cross-coupling, just in two non-adjacent resonators with the situation fixed conductor of short circuit.At this time with weldering
The mode connect is fixed on the resonator by conductor short circuit mode, and conductor used after certain size bending to combine in resonator
On.
But it is above-mentioned in order to form cross-coupling, piece is added by open circuit or the form of short circuit between non-adjacent resonator
The structure of shape or linear conductor is needed in the fixed addition insulator of frame or in the conductor of resonator welding lead form.It is such
Structure can generate processing charges and machining tolerance, and directly weld in resonator or fix patch conductor using other forms
When cause cross-coupling power to become very sensitive because of factors such as position of related features and spacing.So complex procedures and susceptibility increase
Adding leads to cost of manufacture raising and production capacity decline.
In addition, because to guarantee between resonator transmit coupling, the orientation of resonator be it is confined, generally
The transmission path of signal can only be a word or U-shaped, so input/output port position is also immutable, lead to not meet diversification
System requirements, and be also required to additionally increase structural member to change port position.
Utility model content
The purpose of the utility model is to overcome the defects of the prior art, provide a kind of filter of volume smallerization.
To achieve the above object, the utility model proposes following technical solutions: a kind of filter, comprising:
Filter frame, is inside formed with accommodation space；
At least two resonators in the accommodation space and along bars transmission path distribution are set to, described
It is of coupled connections between the two neighboring resonator on signal transmission path, each resonator includes main part and bending
Portion, one end of the main part and the inner wall of filter frame are integrally formed and are grounded, and the bending part includes first bending part and end
Bending part, the head bending part and last bending part connect the resonator structure to be formed along spiraling counterclockwise or clockwise, or
The bending part includes first bending part, at least one intermediate bending part and last bending part, the intermediate bending part by first bending part and
Last bending part connects the resonator structure to be formed along spiraling counterclockwise or clockwise.
Preferably, the first bending part is formed from the other end of main part to a direction or both direction bending.
Preferably, at least one partition wall is additionally provided in the filter, the partition wall is interior with filter frame
It is formed with coupling gap between wall and is integrally formed with filter frame, the accommodation space is divided into multiple by the partition wall
Accommodating chamber, the main part of the resonator and the partition wall, which are integrally formed, to be grounded, and/or the inner wall one with filter frame
Body formed ground connection.
Preferably, the signal transmission path in the filter is transmitted according to the partition wall by U-shaped or S type.
Preferably, a partition wall is set in the filter, and the partition wall is shaped in the filter frame
Middle part, the signal transmission path in the filter transmits according to the partition wall by U-shaped.
Preferably, the multiple partition walls being spaced apart of setting in the filter, and two neighboring partition wall respectively with phase
Pair two filter frame inner walls form coupling gap, the signal transmission path in the filter is pressed according to the partition wall
The transmission of S font.
Preferably, coupling opening is provided on the partition wall, the two neighboring resonator of the different accommodating chambers is logical
It crosses the coupling opening to be of coupled connections, forms cross-coupling.
Preferably, the main part of the two neighboring resonator of the different accommodating chambers is connected directly between by coupling opening
Inductance cross-coupling is realized together.
Preferably, the bending part of the two neighboring resonator of the different accommodating chambers is spaced a distance is opened by coupling
Cause for gossip shows capacitive cross coupling.
Preferably, the filter further includes being set to the upper cover plate of filter frame upper end and being set to filter frame
The lower cover plate of lower end, the upper and lower lids close the accommodation space, on perpendicular to upper and lower lids direction, the resonance
The thickness of device bending part is greater than the thickness of main part.
Preferably, the filter further includes being set to the letter that the filter frame is outer and communicates with the accommodation space
Number input port and signal output port, and the signal input port and signal output port are located at the signal transmission
Two ends in path.
Preferably, the upper and lower lids, which are adopted, is screwed or scolding tin or laser welding mode are assemblied in the filter respectively
The upper and lower end of wave device frame.
The beneficial effects of the utility model are:
1, the integrally formed resonator with multiple bendings (at least there are two bending parts) is set in filter frame,
There is remarkable result for the miniaturization of filter, and resonator is structure as a whole with frame, reduce assembly man-hour expense, reduces
Accumulated tolerance and build-up tolerance, and reduce contact loss, while also making filter that there is preferable PIM (Passive
Inter-Modulation, passive intermodulation) performance.
2, the shape of each resonator can design for change as needed, accordingly can freely be designed according to the shape of resonator humorous
Coupled modes between vibration device；In addition, in conjunction with partition wall can freely variable signal transmission path, transmission path freely becomes
Change and then the design flexibility of filter entirety can be improved with the design position of unrestricted choice signal input/output end port.
3, it is not necessarily to increase structural member using the opening position of partition wall and achieves that intersection coupling between non-adjacent resonators
It closes, therefore can reduce because of the processing of structural member bring and build-up tolerance, reduce the difficulty of processing of product, and processing and assembly fee
With can also greatly reduce.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model embodiment 1；
Fig. 2 is the overlooking structure diagram of the utility model embodiment 1；
Fig. 3 is the schematic illustration of 1 signal transmission path of the utility model embodiment；
Fig. 4 is the structural schematic diagram of the utility model resonator；
Fig. 5 is the schematic illustration of 1 equivalent circuit of the utility model embodiment；
Fig. 6 is the corresponding electrical property curve synoptic diagram of the utility model embodiment 1；
Fig. 7 is the schematic perspective view of the utility model embodiment 2
Fig. 8 is the schematic perspective view of the utility model embodiment 3；
Fig. 9 is the overlooking structure diagram of the utility model embodiment 3.
Appended drawing reference:
1, filter frame, 11, accommodation space, 111, accommodating chamber, 2/21~26, resonator, 211, main part, 212,
First bending part, 213, last bending part, 214, intermediate bending part, 3, upper cover plate, 4, adjustable structure, 5, partition wall, 51, coupling opens
Mouthful, 6, coupling gap, 7, signal input port, 8, signal output port.
Specific embodiment
Below in conjunction with the attached drawing of the utility model, the technical solution of the utility model embodiment is carried out clear, complete
Description.
A kind of revealed filter of the utility model, it is integrally formed with multiple by being arranged in filter frame
The resonator of bending structure while realizing filter volume smallerization, also achieves coupled modes, signal biography between resonator
The diversification of the designs such as defeated path, signal port position improves the flexibility of filter design；And pass through partition wall upper opening
Mode realizes the cross-coupling between non-adjacent resonators, simplifies the structure and manufacturing procedure of filter.
In conjunction with shown in FIG. 1 to FIG. 3, a kind of revealed filter of the utility model, including filter frame 1 and at least two
A resonator 2, wherein the upper and lower ends of filter frame 1 are open, and also can be replaced certainly is only upper end opening, filter block
The hollow accommodation space 11 accommodated for resonator is formed in frame 1, the opening of the upper and lower surface of filter frame 1 can adopt respectively
It is encapsulated with upper cover plate 3 and lower cover plate (not shown), makes the accommodation space 11 for forming sealing in it；Only upper end opening when, then
As long as being encapsulated with upper cover plate 3.When implementation, upper and lower cover plates, which can adopt, to be screwed or using assembly sides such as scolding tin or laser weldings
Formula.In addition, the adjustable structure 4 for adjusting frequency and/or coupling amount can be increased on upper cover plate 3, when implementation, adjustable structure 4
It may include the cooperation of screw rod and nut, it can also be using the other forms etc. for protruding into conductor by cover board face.And upper and lower cover plates
It can also be replaced with pcb board.
Multiple resonators 2 are set in the accommodation space 11, and are integrally formed with filter frame 1.Resonator 2 is in the appearance
Multi-signal transmission path, such as "-" type, U-shaped or S type etc. can be formed in space 11 by receiving.Such as form "-" type signal transmission road
When diameter, multiple resonators 2 in accommodation space 11 in row's distribution, from the one side wall of filter frame 1 to the opposite other side
The directional spreding of wall, the signal transmission path of formation are "-" type, and plane where resonator 2 and filter frame 1
Top and bottom are parallel or less parallel, that is, are horizontally set in filter frame 1.
As interchangeable, at least one and 1 integrally formed point of filter frame can also be set in filter frame 1
Next door 5, in conjunction with shown in FIG. 1 to FIG. 3, accommodation space 11 is divided into multiple accommodating chambers 111, each receiving by the partition wall 5
At least two resonators 2 are set in chamber 111, and the distribution of resonator 2 and above-mentioned resonator in each accommodating chamber 111
2 is same or like by the distribution mode of "-" type distribution, can refer to foregoing description, is not described herein.In this way, multiple accommodating chambers
The signal transmission path that filter 2 in room 111 is formed can for U-shaped or S type or other.
Partition wall 5 is set between two neighboring accommodating chamber 111, for the resonator of different accommodating chambers 111 to be isolated
2.Partition wall 5 and filter frame 1 are integrally formed, and in the present embodiment 1, partition wall 5 is located at the middle part of filter frame 1, will hold
It receives space 11 and is divided to for two accommodating chambers 111, the multiple resonators 2 of setting are (as shown in Figures 2 and 3, in each accommodating chamber 111
Setting resonator 21~23, lower accommodating chamber are interior in upper accommodating chamber is arranged resonator 24~26).Partition wall 5 and filter block
The right side wall of frame 1 does not contact, between be formed with coupling gap 6, as shown in Figure 1, the coupling gap 6 make be located at different accommodating chambers
Two neighboring resonator (i.e. resonator 23 and 24) coupling can be generated.The partition wall 5 forms between resonator 21~26
Signal transmission path, in the present embodiment 1, signal transmission path be it is U-shaped.That is signal transmission path can according to point
The setting position in next door 5 and setting quantity etc. are freely designed.
As shown in figure 4, each resonator 2 specifically includes main part 211 and bending part, wherein a termination of main part 211
Ground, when being not provided with partition wall 5 in filter frame 1, which can according to need any side wall with filter frame 1
It is integrally formed, is such as integrally formed with the rear wall of filter frame 1, the other end then prolongs to the front side wall close to filter frame 1
It stretches, can be for another example integrally formed with the left side wall of filter frame 1, the other end then prolongs to the right side wall close to filter frame 1
It stretches.When partition wall 5 is arranged, the ground terminal can according to need with partition wall 5 be integrally formed, and/or with filter frame 1
Any side wall is integrally formed.As shown in Figures 1 to 3, in the present embodiment 1, the ground terminal of filter 21,22,25,26 is and partition wall
5 are integrally formed, and the ground terminal of filter 23,24 is then integrally formed with 1 right side wall of filter frame.That is main part
211 ground terminal can random design for change up and down in filter frame 1.
Bending part is connected with the other end of main part 211 and bending is formed, and the bending shape of bending part can be according to practical need
Free design for change is wanted, here with no restrictions, that is to say, that the shape of resonator 2 can according to need bending and form a variety of set
Meter.Specifically, as shown in figure 4, bending part includes first bending part 212 and last bending part 213, wherein first bending part 212 is by main body
The other end in portion 211 is formed to a direction or both direction bending；First bending part 212 and the last connection of bending part 213 form edge
The resonator structure to spiral counterclockwise or clockwise.Alternatively, it includes first bending part 212 that bending part, which removes, as interchangeable
Outside last bending part 213, it may also include at least one intermediate bending part 214, wherein first bending part 212 is by the another of main part 211
One end is formed to a direction or both direction bending, and intermediate bending part 214 connects first bending part 212 and last bending part 213
It is formed along the resonator structure to spiral counterclockwise or clockwise.
As shown in figure 4, the other end of bending part and main part 211 was connected to form along the clockwise or inverse time in the present embodiment 1
The vertical bending in needle direction forms at least three bendings, i.e. bending part includes first bending part 212, intermediate bending part 214 and end folding
Turn of bilge 213, wherein first bending part 212 is connected with the other end of main part 211, forms vertical bending, intermediate bending part and first folding
The end of turn of bilge 212 is connected, and forms vertical bending, and last bending part 213 is connected with the end of intermediate bending part 214, is formed vertical
Bending.Compared with existing L-type and T-type resonator, the resonator structure of the utility model design can realize the smaller of filter
Change, and the frequency of filter is lower.Preferably, in the direction of the upper and lower side perpendicular to filter frame, bending part is thickened, i.e.,
So that the thickness of bending part is greater than the thickness of main part 211, resonator can be further decreased under the requirement of same frequency in this way
Volume.
The electromagnetism hybrid coupled between the two neighboring resonator 2 on signal transmission path, specific main coupled modes are by humorous
The shape of device 2 of shaking and arrangement position determine, the coupling amount between resonator 2 can by coupling area between resonator 2 and
Away from adjusting.It should be noted that general TEM mode filter is coupled as being electrically coupled (i.e. capacitive coupling) and magnetic coupling (i.e.
Inductive coupling) it coexists, the big a kind of referred to as leading coupling of coupling amount in both couplings, and the master in the utility model filter
The mode for leading coupling can be by the shape unrestricted choice of resonator 2.Such as the 6 rank filter of integral type in the present embodiment 1, formation
Signal transmission path is that resonator 21~26 is formed by U-shaped path.
Preferably, in the two neighboring resonator of the multiple groups of different accommodating chambers between the two neighboring resonator of at least one group
It is of coupled connections, realizes cross-coupling.As shown in FIG. 1 to 3, pass through separation between the two neighboring resonator of different accommodating chambers
The corresponding coupling opening 51 added forms cross-coupling transmission path on wall 5.According to the area of coupling opening 51, and/or pass through
The resonator shape and couple spacing to adjust cross-linked coupling amount, and cross-linked coupled mode that coupling opening 51 couples
Formula selection is determined according to the mode of leading coupling.In the present embodiment 1, the position that resonator 22 and 25 is corresponded on partition wall 5 is set
A coupling opening 51 is set, the main part 211 of 22 resonator 25 of resonator is directly linked together reality by the coupling opening 51
Existing inductance cross-coupling, that is, increase inductance cross-coupling, form 2 transmission zeros；And resonator 21 is corresponded on partition wall 5
Position with 26 is also provided with a coupling opening 51, so that the bending part of resonator 21 and 26 is spaced a distance, passes through the coupling
Opening 51 forms capacitive coupling, i.e., increases capacitive cross coupling again, passes through a cross-coupling in the present embodiment in passband
High band, low-frequency range respectively generates two zero points of opposite phase, therefore two cross-couplings generate totally 4 transmission zeros.Such as Fig. 5
Shown in schematic diagram, the cross-coupling between resonator 22 and 25 is inductive coupling, the cross-coupling between resonator 21 and 26
For capacitive coupling.It is illustrated in figure 6 corresponding electrical property curve, the inductance cross-coupling and electricity formed by two coupling openings 51
Hold cross-coupling, forms 4 zero points altogether, therefore can realize the high performance filter of good attenuation characteristic.The power of each zero point,
It position can independent control.
Further, as shown in FIG. 1 to 3, the filter further includes signal input port 7 and signal output port 8,
The two ports 7,8 are separately positioned on two ends of above-mentioned signal transmission path, and signal input, output port 7,8 positions are
It is determined according to the direction of signal transmission path, that is to say, that according to the difference of signal transmission path, position is arranged can also
With corresponding different, thus change signal transmission path can variable signal input/output interface 7,8 positions, can by foregoing description
Know, signal transmission path can freely be designed again by the setting position of partition wall 5.In embodiment 1, signal input port 7 is set
It is placed at the position of the close resonator 21 outside filter frame 1, signal output port 8 is set to leaning on outside filter frame 1
At the position of nearly resonator 26.When implementation, signal input port 7 and signal output port 8 can also there are many form, this implementations
In example, signal input output end mouth 7,8 is inner core form, be can also change as connector, or in upper end, lower end combines pcb board (on i.e.
Cover board and lower cover plate) form signal input output end mouth 7,8.
It is as also shown in fig. 7, there are 8 integrated resonators 2 in a filter frame 1, forms 4 chamber bandpass filters.Wherein,
3 are provided in filter frame 1 with row's distribution (right side wall point such as along the left side wall of filter frame 1 toward filter frame 1
Cloth) 5,3 partition walls 5 of partition wall accommodation space 11 is divided into 4 accommodating chambers 111, setting in each accommodating chamber 111
Two resonators 2, shape, earthing position of resonator 2 etc. are not described herein referring to the description of above-described embodiment 1.And according to
The shape of resonator 2 and the position to intercouple are come to control the leading coupled mode in embodiment 2 between resonator 2 be to be electrically coupled
Mode or magnetic coupling mode.
Two coupling gaps 6 of two neighboring partition wall 5 are located at heteropleural, the signal transmission path root in such filter 2
It is transmitted according to the partition wall 5 by S font.It can control signal input output end mouth 7,8 positions according to the S type signal transmission path.
For signal input output end mouth 7,8 respectively in two ends of signal transmission path, the direction of signal transmission path determines letter again
The position of number input/output port 7,8.Certainly, in embodiment 2 signal transmission path of resonator be also possible to it is U-shaped, such as Fig. 8,9
Shown, a partition wall 5 is arranged in the middle part of filter frame 1.
That is, the shape and earthing position of the utility model resonator 2 can be designed freely, and between resonator 2
Leading coupled mode can be determined by the coupling position for the resonator 2 being coupled, so can also freely design；In addition,
The setting position of partition wall 5 can freely be designed, and signal transmission path is determined by the setting position of partition wall 5, so
It can freely design, there are also signal input output end mouths 7,8 to be determined again by signal transmission path, so can also freely design；
Further, the cross-coupling between resonator 2 is determined according to the performance requirement of filter, so can also freely design.
Coupled mode, signal transmission path, signal input output end mouth in the utility model between the shape of resonator 2, resonator 2
7,8 design, filter cross-coupled mode etc. can according to need free design, be not limited to described by above three embodiments
's.
It can be seen from Fig. 1, Fig. 7 and Fig. 8 other than connector the not additional assembling structure part of the utility model, add
Work and assembly costs can greatly reduce.And there is no additional structural member when forming cross-coupling between non-adjacent resonators,
Only by achieving that cross-coupling in partition wall upper opening, therefore can reduce because of the processing of structural member bring and build-up tolerance,
Reduce the difficulty of product.
The technology contents and technical characteristic of the utility model have revealed that as above, however those skilled in the art still may be used
Can teaching based on the utility model and announcement and make various replacements and modification without departing substantially from the spirit of the present invention, therefore, this
Utility model protection range should be not limited to the revealed content of embodiment, and should include the various replacements without departing substantially from the utility model
And modification, and covered by present patent application claim.
Claims (10)
1. a kind of filter characterized by comprising
Filter frame, is inside formed with accommodation space；
At least two resonators in the accommodation space and along bars transmission path distribution are set to, in the signal
It being of coupled connections between the two neighboring resonator in transmission path, each resonator includes main part and bending part,
One end of the main part and filter frame, which are integrally formed, to be grounded, and the bending part includes first bending part and last bending part, institute
It states first bending part and connects the resonator structure or the bending part to be formed along spiraling counterclockwise or clockwise with last bending part
Including first bending part, at least one intermediate bending part and last bending part, the intermediate bending part connects first bending part and last bending part
Connect the resonator structure to be formed along spiraling counterclockwise or clockwise.
2. filter according to claim 1, which is characterized in that the head bending part is from the other end of main part to one
Direction or both direction bending are formed.
3. filter according to claim 1, which is characterized in that be additionally provided at least one separation in the filter
Wall is formed with coupling gap and is integrally formed with filter frame between the partition wall and the inner wall of filter frame, described
The accommodation space is divided into multiple accommodating chambers by partition wall, and the main part of the resonator and the partition wall are integrally formed
Ground connection, and/or ground connection is integrally formed with the inner wall of filter frame.
4. filter according to claim 3, which is characterized in that the signal transmission path in the filter is according to
Partition wall is transmitted by U-shaped or S type.
5. filter according to claim 3, which is characterized in that one partition wall of setting in the filter, described point
Next door is shaped in the middle part of the filter frame, and the signal transmission path in the filter is pressed according to the partition wall
U-shaped transmission.
6. filter according to claim 3, which is characterized in that the multiple separations being spaced apart of setting in the filter
Wall, and two neighboring partition wall forms coupling gap with opposite two filter frame inner walls respectively, in the filter
Signal transmission path is transmitted according to the partition wall by S font.
7. according to filter described in claim 3~6 any one, which is characterized in that be provided with coupling on the partition wall
The two neighboring resonator of opening, the different accommodating chambers is of coupled connections by the coupling opening, forms cross-coupling.
8. filter according to claim 7, which is characterized in that the two neighboring resonator of the different accommodating chambers
Main part is directly linked together by coupling opening and realizes inductance cross-coupling.
9. filter according to claim 7, which is characterized in that the two neighboring resonator of the different accommodating chambers
Bending part, which is spaced a distance, realizes capacitive cross coupling by coupling opening.
10. filter according to claim 1, which is characterized in that the filter further includes being set to filter frame
The upper cover plate of upper end and the lower cover plate for being set to filter frame lower end, the upper and lower lids close the accommodation space,
Perpendicular on upper and lower lids direction, the thickness of the resonator bending part is greater than the thickness of main part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920077171.2U CN209169350U (en) | 2019-01-17 | 2019-01-17 | A kind of filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920077171.2U CN209169350U (en) | 2019-01-17 | 2019-01-17 | A kind of filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209169350U true CN209169350U (en) | 2019-07-26 |
Family
ID=67328655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920077171.2U Active CN209169350U (en) | 2019-01-17 | 2019-01-17 | A kind of filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209169350U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110708034A (en) * | 2019-09-17 | 2020-01-17 | 苏州工业园区艺达精密机械有限公司 | Filter capable of realizing double-path filter function |
| EP3979405A4 (en) * | 2019-08-06 | 2023-01-18 | Rosenberger Technologies Co., Ltd. | Cross-coupled filter |
-
2019
- 2019-01-17 CN CN201920077171.2U patent/CN209169350U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3979405A4 (en) * | 2019-08-06 | 2023-01-18 | Rosenberger Technologies Co., Ltd. | Cross-coupled filter |
| CN110708034A (en) * | 2019-09-17 | 2020-01-17 | 苏州工业园区艺达精密机械有限公司 | Filter capable of realizing double-path filter function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209169350U (en) | A kind of filter | |
| CN111446524B (en) | Single-layer cross coupling filter | |
| CN210379367U (en) | Ceramic dielectric filter | |
| CN110048686A (en) | Laminated band pass filter | |
| KR102368161B1 (en) | Resonator of radio frequency filter | |
| KR101191751B1 (en) | RF cavity filter for generating notches with use of input/output ports | |
| CN215732130U (en) | Cavity filter | |
| CN212162041U (en) | Band-stop filter and radio frequency device | |
| KR101386941B1 (en) | Band rejection filter of assembly type | |
| CN110277613A (en) | A kind of laminated integratedization dielectric filter | |
| CN201204240Y (en) | Integrated band-pass filter and low-pass filter component | |
| CN112542665B (en) | Multimode dielectric filter and multimode cascade filter | |
| CN111066198B (en) | Ceramic dielectric filter | |
| CN107508020A (en) | Resonator and elliptic function type low-pass filter | |
| CN201011666Y (en) | Band stop filter | |
| EP1032070B1 (en) | Dielectric filter, dielectric duplexer, and communication apparatus | |
| CN207303308U (en) | Bandstop filter and radio-frequency devices | |
| CN107658533B (en) | Band elimination filter and radio frequency device | |
| CN112087212B (en) | Miniaturized electric adjusting filter | |
| CN115425382A (en) | Three-mode dielectric resonator and dielectric filter | |
| CN108847516A (en) | A kind of evaporative pattern waveguide high-pass filter | |
| CN111446529A (en) | Filter | |
| US11984635B2 (en) | Filter | |
| CN114301409A (en) | Low-pass band-stop filter, filter circuit, filter module and tuning method thereof | |
| CN211320273U (en) | Dielectric waveguide filter capable of realizing single out-of-band transmission zero |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Kunshan Dianshan Lake Town City Suzhou city Jiangsu province 215345 Shen road, No. 6 Patentee after: Rosenberg Technology Co.,Ltd. Address before: Kunshan Dianshan Lake Town City Suzhou city Jiangsu province 215300 Shen road, No. 6 Patentee before: ROSENBERGER TECHNOLOGY ( KUNSHAN) Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215300 No.6 Shen'an Road, Dianshanhu Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: ProLogis Communication Technology (Suzhou) Co.,Ltd. Address before: 215345 No. 6 Shen'an Road, Dianshan Lake Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: Rosenberg Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address |