CN206541911U - Adjustable wave filter - Google Patents
Adjustable wave filter Download PDFInfo
- Publication number
- CN206541911U CN206541911U CN201720190916.7U CN201720190916U CN206541911U CN 206541911 U CN206541911 U CN 206541911U CN 201720190916 U CN201720190916 U CN 201720190916U CN 206541911 U CN206541911 U CN 206541911U
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- hole
- wave filter
- ceramic matrix
- screw
- radome
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Abstract
The utility model provides a kind of adjustable wave filter, and it includes：Radome, ceramic matrix, pcb board；Ceramic matrix is arranged on pcb board, and some through holes, through hole insertion ceramic matrix are offered on ceramic matrix, and the bearing of trend of through hole and the length direction of ceramic matrix are parallel；Radome is L-type, L-type radome one end is connected on ceramic matrix, the other end is connected on pcb board, some screw holes are provided with radome, some screw holes are set with some through hole confronting coaxials respectively, screw is provided with any screw hole, the length of screw is less than the distance between relative screw hole and through hole.The adjustable wave filter of the present utility model screw hole relative with through hole by opening up, and screw is set in screw hole, so as to change the intensity of variation of respective electromagnetic field (EMF), so as to reach the purpose for the frequency for adjusting whole wave filter.In addition, above-mentioned be adjusted to reversible regulation, the versatility of adjustable wave filter of the present utility model is so enhanced.
Description
Technical field
The utility model is related to a kind of wave filter, more particularly to a kind of adjustable wave filter.
Background technology
Radio-frequency devices are when in use, it will usually which it is functional to run into the independent detecting electric of the problem of product is matched, i.e. product,
But the abnormal situation of characteristic just occurs when other devices coordinate and are used together.Particularly SMD dielectric filter
Device, its producer dispatch from the factory test when it is functional, but on the pcb board for be welded to client after some electrical specifications just occurs not
Situation up to standard.Now, often site of manufacture goes to debug or the index surplus of product is stopped into more than enough, even if in this way, referring to
Mark change is also not in problem not up to standard.
In addition, all there is the filter intrinsic in normal temperature, low temperature, high temperature of temperature drift, i.e. product in media ceramic product
Wave frequency section can change, so as to cause whole device to be failed in the environment of full temperature work.In this regard, current solution is
Go to reduce its temperature drift value as far as possible by the composition proportion for adjusting ceramic feed powder, but from the point of view of practice situation, can not equally solve at all
The certainly problem.
In addition, after existing wave filter design debugging is good, when in use due to the temperature or other factorses of use environment
Influence, the frequency filtering of meeting but whole wave filter changes or some electrical specifications of wave filter are deteriorated, so as to cause
The work of whole equipment is abnormal.Due in the design of generic media wave filter, wave filter is not easy to carry out after dispatching from the factory
Secondary debugging.The characteristics of due to ceramic matrix and printed circuit, even if by the debugging acid of specialty, can not also accomplish can be extensive
The regulation of renaturation.In this way, being very easy to cause the bad of device.Meanwhile, and when wave filter works, each bore periphery
With electromagnetic field, and electromagnetic field is highly susceptible to the interference of other external objects, so that change the distribution of its electromagnetic field, and electromagnetism
The change of field distribution is just while mean to change the resonant frequency of whole device.
Therefore, in view of the above-mentioned problems, being necessary to propose further solution.
Utility model content
The purpose of this utility model is to provide a kind of adjustable wave filter, to overcome present in prior art not
Foot.
To realize above-mentioned utility model purpose, a kind of adjustable wave filter of offer of the present utility model, it includes：Shielding
Cover, ceramic matrix, pcb board；
The ceramic matrix is arranged on the pcb board, and some through holes are offered on the ceramic matrix, and the through hole is passed through
Lead to the ceramic matrix, and the bearing of trend of through hole and the length direction of ceramic matrix are parallel；
The radome is L-type, and described L-type radome one end is connected on the ceramic matrix, and the other end is connected to institute
State on pcb board, some screw holes be provided with the radome, some screw holes are set with some through hole confronting coaxials respectively,
Screw is provided with any screw hole, the length of the screw is less than the distance between relative screw hole and through hole.
As the improvement of adjustable wave filter of the present utility model, filtering is also printed with the end face of the ceramic matrix
Circuit.
As the improvement of adjustable wave filter of the present utility model, conductive silver paste is coated with the hole wall of the through hole.
As the improvement of adjustable wave filter of the present utility model, the two ends of the radome pass through welding manner respectively
It is connected on the ceramic matrix and pcb board.
As the improvement of adjustable wave filter of the present utility model, the material of the screw is non-conducting material.
Compared with prior art, the beneficial effects of the utility model are：Adjustable wave filter of the present utility model passes through
The screw hole relative with through hole is opened up, and screw is set in screw hole, so as to change the intensity of variation of respective electromagnetic field (EMF), from
And reach the purpose for the frequency for adjusting whole wave filter.In addition, above-mentioned be adjusted to reversible regulation, this practicality is so enhanced new
The versatility of the adjustable wave filter of type.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments described in the utility model, for those of ordinary skill in the art, is not paying creative work
On the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic perspective view of the adjustable embodiment of wave filter one of the present utility model；
Fig. 2 is the front view of adjustable wave filter in Fig. 1；
Fig. 3 is the side view of adjustable wave filter in Fig. 1.
Embodiment
The utility model is described in detail shown each embodiment below in conjunction with the accompanying drawings, but it should explanation,
These embodiments are not limitation of the utility model, and those of ordinary skill in the art are according to these embodiment institute works
Energy, method or equivalent transformation or replacement in structure, are belonged within protection domain of the present utility model.
As Figure 1-3, adjustable wave filter of the present utility model includes：Radome 10, ceramic matrix 20, pcb board
30。
The ceramic matrix 20 is arranged on the pcb board 30, and some through holes 21, institute are offered on the ceramic matrix 20
Ceramic matrix 20 described in the insertion of through hole 21 is stated, and the bearing of trend of through hole 21 is parallel with the length direction of ceramic matrix 20.This
Outside, filter circuit is also printed with the end face of the ceramic matrix 20, meanwhile, it is coated with conductive silver on the hole wall of the through hole 21
Slurry.It is arranged such, equivalent to one resonant tank of electric property of the through hole, and resonant tank has corresponding resonance frequency
Rate, the FREQUENCY CONTROL whole filter frequencies.
The radome 10 is L-type, and described one end of L-type radome 10 is connected on the ceramic matrix 20, and the other end connects
It is connected on the pcb board 30.Preferably, the two ends of the radome 10 are connected to the ceramic matrix by welding manner respectively
20 and pcb board 30 on.
In above-mentioned embodiment, some screw holes 11 are provided with the radome 10, if some screw holes 11 respectively with
The dry confronting coaxial of through hole 21 is set, and any screw hole 11 central axis be located at opposing through-bores 21 central axis extension
On line.In addition, being provided with screw 40 in any screw hole 11, the length of the screw 40 is less than relative screw hole and through hole
The distance between, so, it is ensured that where screw 40 is completely screwed into during screw hole 11, screw 40 will not enter relative through hole
In.The screw-in of screw 40 and back-out can be realized by corresponding instrument.Preferably, the material of the screw 40 is non-conductive material
Material.
When adjusting the frequency of adjustable wave filter of the present utility model, it can be adjusted and changed and opposing through-bores by screw
Distance so that adjust change correspondence electromagnetic field intensity of variation, reach the frequency for changing whole wave filter.
So as to if in wave filter in use, the change of use environment or due to being needed with the matching problems of other devices
When adjusting the frequency of indivedual through holes, the change of frequency can be easily realized by set screw by above-mentioned regulative mode.And
Its above-mentioned regulation is reversible, in this way, when the degree of regulation exceedes due degree, can be extensive by way of inversely adjusting
Original frequency level is arrived again, so as to add the versatility of adjustable wave filter of the present utility model.
In summary, the adjustable wave filter of the present utility model screw hole relative with through hole by opening up, and in spiral shell
Silk sets screw in hole, so as to change the intensity of variation of respective electromagnetic field (EMF), so as to reach the frequency for adjusting whole wave filter
Purpose.In addition, above-mentioned be adjusted to reversible regulation, the versatility of adjustable wave filter of the present utility model is so enhanced.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (5)
1. a kind of adjustable wave filter, it is characterised in that the adjustable wave filter includes：Radome, ceramic matrix,
Pcb board；
The ceramic matrix is arranged on the pcb board, and some through holes, the through hole insertion institute are offered on the ceramic matrix
Ceramic matrix is stated, and the bearing of trend of through hole and the length direction of ceramic matrix are parallel；
The radome is L-type, and described L-type radome one end is connected on the ceramic matrix, and the other end is connected to the PCB
On plate, some screw holes are provided with the radome, some screw holes are set with some through hole confronting coaxials respectively, any spiral shell
Screw is provided with silk hole, the length of the screw is less than the distance between relative screw hole and through hole.
2. adjustable wave filter according to claim 1, it is characterised in that also printed on the end face of the ceramic matrix
There is filter circuit.
3. adjustable wave filter according to claim 1, it is characterised in that be coated with conduction on the hole wall of the through hole
Silver paste.
4. adjustable wave filter according to claim 1, it is characterised in that the two ends of the radome pass through weldering respectively
The mode of connecing is connected on the ceramic matrix and pcb board.
5. adjustable wave filter according to claim 1, it is characterised in that the material of the screw is non-conductive material
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720190916.7U CN206541911U (en) | 2017-03-01 | 2017-03-01 | Adjustable wave filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720190916.7U CN206541911U (en) | 2017-03-01 | 2017-03-01 | Adjustable wave filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206541911U true CN206541911U (en) | 2017-10-03 |
Family
ID=59940637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720190916.7U Active CN206541911U (en) | 2017-03-01 | 2017-03-01 | Adjustable wave filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206541911U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518312A (en) * | 2019-08-26 | 2019-11-29 | 广东通宇通讯股份有限公司 | Ceramic Dielectric Filter and its conducting fixing means with antenna coupling plate |
| CN115940875A (en) * | 2022-11-24 | 2023-04-07 | 台晶(重庆)电子有限公司 | Temperature induction type quartz crystal resonator |
-
2017
- 2017-03-01 CN CN201720190916.7U patent/CN206541911U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518312A (en) * | 2019-08-26 | 2019-11-29 | 广东通宇通讯股份有限公司 | Ceramic Dielectric Filter and its conducting fixing means with antenna coupling plate |
| CN115940875A (en) * | 2022-11-24 | 2023-04-07 | 台晶(重庆)电子有限公司 | Temperature induction type quartz crystal resonator |
| CN115940875B (en) * | 2022-11-24 | 2023-06-09 | 台晶(重庆)电子有限公司 | Temperature-sensing quartz crystal resonator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215129 Jiangsu Suzhou high tech Zone Environmental Protection Industrial Park Factory No. 14 landlord half Patentee after: Suzhou RF Top Electronic Communication Co., Ltd. Address before: 215129 Jiangsu Suzhou high tech Zone Environmental Protection Industrial Park Factory No. 14 landlord half Patentee before: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215129, Jiangsu Suzhou hi tech Zone Industrial Park Environmental Protection Plant No. 14 landlord half Patentee after: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS CO., LTD. Address before: 215129, Jiangsu Suzhou hi tech Zone Industrial Park Environmental Protection Plant No. 14 landlord half Patentee before: Suzhou RF Top Electronic Communication Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 215000 No.65, Chengji Road, Hushuguan Town, high tech Zone, Suzhou City, Jiangsu Province Patentee after: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. Address before: 215129, Jiangsu Suzhou hi tech Zone Industrial Park Environmental Protection Plant No. 14 landlord half Patentee before: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |