CN206864585U - A kind of dielectric waveguide filter - Google Patents
A kind of dielectric waveguide filter Download PDFInfo
- Publication number
- CN206864585U CN206864585U CN201720455091.7U CN201720455091U CN206864585U CN 206864585 U CN206864585 U CN 206864585U CN 201720455091 U CN201720455091 U CN 201720455091U CN 206864585 U CN206864585 U CN 206864585U
- Authority
- CN
- China
- Prior art keywords
- filter
- dielectric waveguide
- utility
- coupling
- waveguide filter
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The utility model provides a kind of dielectric waveguide filter, solves the problems, such as that existing dielectric waveguide filter causes its insufficient strength due to structure.The utility model includes filtering body；Radio frequency connector, filter medium block are provided with filtering body；Filter medium block includes some medium single-chambers, some coupling windows；Some medium single-chambers are connected from beginning to end successively by coupling window；The centre of coupling window is provided with more than one perceptual through hole.The utility model can effectively adjust the coupling amount of coupling window so that couple that the intensity of window is higher, so that the bulk strength of dielectric waveguide filter is more preferable；It is relatively reliable in structural strength of the present utility model；So that the simpler convenience of processing technology；The utility model meets that wave filter filter with low insertion loss, high suppression, high power etc. require well；Meet the development trend of wave filter miniaturization simultaneously；Filter signal can be preferably strapped in filter internal by the utility model, be kept apart with exterior space.
Description
Technical field
Filter field is the utility model is related to, particularly a kind of dielectric waveguide filter.
Background technology
Wave filter is a kind of frequency selective device, can make in signal specific frequency content by so as to greatly decay it
Its frequency content.Waveguide filter is one kind in the wave filter used in communication system, and traditional waveguide filter is gold
Belong to cavity body structure, centre is air, and metal material is that edge plays a part of electromagnetic shielding and structural support.Traditional waveguide
Wave filter has higher Q values, but volume and weight are larger, and production cost is high, while is unfavorable for installing and transports.With communication
The development of system, it is desirable to which wave filter has a filter with low insertion loss, and height suppresses, and it is big to bear power, low cost, the features such as miniaturization.
Existing dielectric waveguide filter typically uses coupled structure of the coupling window of one fixed width as wave filter, and
The width of coupling window is generally less than the width of medium single-chamber；But the design of above-mentioned waveguide filter due to coupling window etc.
Problem, cause the insufficient strength of whole wave filter；Therefore in order to obtain more preferable filter shape response, it is necessary to existing medium ripple
The coupling window structure of waveguide filter is improved.
Utility model content
In view of the above-mentioned problems of the prior art, the utility model provides a kind of dielectric waveguide filter.
A kind of dielectric waveguide filter, including filtering body；Radio frequency connector is provided with described filtering body；
Described filtering body includes filter medium block；If described filter medium block includes some medium single-chambers, dry-cured meat
Window, and adjacent medium single-chamber is connected by coupling window；The centre of described coupling window is provided with through hole.
The size that the size of described coupling window distinguishes corresponding medium single-chamber is identical.
Some medium single-chambers are connected from beginning to end successively by coupling window.
Preferably, described through hole is perceptual through hole.
Preferably, there is metal screen layer on the surface of filtering body.
Preferably, described metal screen layer is by silver layer.
Preferably, described radio frequency connector includes input radio frequency connector, output radio frequency connector；Described input
Radio frequency connector and output radio frequency connector are located at the both ends of filtering body respectively.
Preferably, it is provided with solid dielectric material in described medium single-chamber.
Preferably, described solid dielectric material is hard ceramic dielectric material.
A kind of dielectric waveguide filter, including filtering body；Radio frequency connector is provided with described filtering body；
Described filtering body includes filter medium block；If described filter medium block includes some medium single-chambers, dry-cured meat
Window, and adjacent medium single-chamber is connected by coupling window；The centre of described coupling window is provided with through hole.
The width and height of described coupling the window width of corresponding medium single-chamber and highly identical respectively.
Some medium single-chambers are connected from beginning to end successively by coupling window.
Preferably, described through hole is more than one；Described through hole is perceptual through hole.
Preferably, there is metal screen layer on the surface of filtering body；Described metal screen layer is by silver layer.
Preferably, described radio frequency connector includes input radio frequency connector, output radio frequency connector；Described input
Radio frequency connector and output radio frequency connector are located at the both ends of filtering body respectively.
Preferably, it is provided with dielectric material in described medium single-chamber；Described dielectric material is solid dielectric material.
Preferably, described solid dielectric material is hard ceramic dielectric material.
Compared with prior art, the utility model has following beneficial effect：
1. the utility model is in coupling window by way of setting perceptual through hole, and there is provided varying number, diameter,
Away from some through holes, effectively regulation coupling window coupling amount so that it is higher to couple the intensity of window, so that medium ripple
The bulk strength of waveguide filter is more preferable.
2. coupling the size of window and the size all same of medium single-chamber in the utility model, plus the presence of through hole, make
The connecting portion that must be coupled between window and medium single-chamber is more, relatively reliable in structural strength；Only needed when processing simultaneously
In coupling window processing through hole, reduce cutting output compared to traditional coupling window processing and cutting face make it that processing technology is simpler
Folk prescription is just.
3. comparing traditional air dielectric material, the utility model uses hard ceramic dielectric material, hard ceramic medium
Material has higher dielectric constant and relatively low dielectric loss, can be with significantly more efficient supporting construction；Meanwhile made pottery using hard
A variety of advantages such as the dielectric filter of ceramic dielectric material has high stability, low-loss, in light weight, cost is low, can expire well
Sufficient wave filter filter with low insertion loss, high suppression, high power etc. require；Meet the development trend of wave filter miniaturization simultaneously.
4. the utility model median filter body surface is additionally provided with by silver layer, electromagnetic shielding action is served by silver layer,
So as to which filter signal is preferably strapped in into filter internal, keep apart with exterior space.
Brief description of the drawings
The structural representation of Fig. 1 single-pass pass coupled structure wave filters.
Fig. 2 single-pass pass coupled structure filter freguency response waveforms.
Relation schematic diagrams of Fig. 3 single-pass pass coupled structure wave filters through hole length L with coupling bandwidth.
The structural representation of Fig. 4 bilateral pass coupled structure wave filters.
Fig. 5 bilateral pass coupled structure filter freguency response waveforms.
Relation schematic diagrams of Fig. 6 bilateral pass coupled structure wave filters through hole spacing L1 with coupling bandwidth.
Relation schematic diagrams of Fig. 7 bilateral pass coupled structures wave filter through-hole diameter D1 with coupling bandwidth.
Wherein, 1- radio frequency connectors, 2- through holes, 3- coupling windows, 4- medium single-chambers.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, and embodiment of the present utility model includes
But it is not limited to the following example.
Embodiment one
As shown in figure 1, a kind of dielectric waveguide filter, including filtering body；Radio frequency company is provided with filtering body
Connect device.In the present embodiment, radio frequency connector includes input radio frequency connector, output radio frequency connector；Input radio frequency connector and
Export the both ends that radio frequency connector is located at filtering body respectively.
Filtering body includes filter medium block；Filter medium block includes some medium single-chambers, some coupling windows,
And adjacent medium single-chamber is connected by coupling window.Some medium single-chambers are connected from beginning to end successively by coupling window.
The centre of coupling window is provided with through hole, and through hole can be arbitrary shape.In the present embodiment, through hole is with length L
With width K perigon angle rectangular opening, the quantity of through hole is one；Through hole is perceptual through hole.
As shown in Fig. 2 the passband between m1 and m2 is the main positions of wave filter working frequency range, m3 positions are filtering
Device is in the working passband position of high band.
As shown in figure 3, the depth of through hole can influence to couple the coupling polarity of bridge：Coupling amount broadens and become with through hole length L
It is small；Coupling amount broadens and diminished with entire widths K；The size of coupling amount generally is characterized with the size of coupling bandwidth, is thus led to
The length L and width K sizes of adjustment through hole are crossed, can obtain satisfactory trap wave point.
The size that the size of coupling window distinguishes corresponding medium single-chamber is identical.In the present embodiment, window is coupled
Width and the height width of corresponding medium single-chamber and highly identical respectively；So that coupling window and medium single-chamber it
Between connecting portion it is more, it is relatively reliable in structural strength；Only need, in coupling window processing through hole, to compare when processing simultaneously
Traditional coupling window processing reduces cutting output and cutting face causes the simpler convenience of processing technology.
In the present embodiment, there is metal screen layer on the surface of filtering body；Metal screen layer is by silver layer, i.e. wave filter sheet
The surface of body is coated with argent；Electromagnetic shielding action is served by silver layer, so as to which filter signal to be preferably strapped in filter
Inside ripple device, keep apart with exterior space.
In the present embodiment, solid dielectric material is provided with medium single-chamber；Solid dielectric material is hard ceramic medium material
Material；Compared to traditional air dielectric material, hard ceramic dielectric material has higher dielectric constant and relatively low dielectric loss,
Can be with significantly more efficient supporting construction；Meanwhile there is high stability, low damage using the dielectric filter of hard ceramic dielectric material
Consumption, a variety of advantages such as in light weight, cost is low, are well positioned to meet the requirements such as wave filter filter with low insertion loss, high suppressions, high power, simultaneously
Meet the development trend of wave filter miniaturization.
Embodiment two
As shown in figure 4, a kind of dielectric waveguide filter, including filtering body；Radio frequency company is provided with filtering body
Connect device.In the present embodiment, radio frequency connector includes input radio frequency connector, output radio frequency connector；Input radio frequency connector and
Export the both ends that radio frequency connector is located at filtering body respectively.
Filtering body includes filter medium block；Filter medium block includes some medium single-chambers, some coupling windows,
And adjacent medium single-chamber is connected by coupling window.Some medium single-chambers are connected from beginning to end successively by coupling window；Medium list
Chamber can be any shape, and similarly filtering body can also be any shape.
The centre of coupling window is provided with through hole, and through hole can be arbitrary shape.In the present embodiment, through hole is with diameter D
Circular hole, the quantity of through hole is two；Spacing between adjacent through-holes is L1；Through hole is perceptual through hole.
As shown in figure 5, the passband between m1 and m2 is the main positions of wave filter working frequency range, m3 positions are filtering
Device is in the working passband position of high band.
As shown in Figure 6,7, the depth of through hole can influence to couple the coupling polarity of bridge：Coupling amount broadened with through hole length L and
Diminish；Coupling amount broadens and diminished with entire widths K；The size of coupling amount generally is characterized with the size of coupling bandwidth, thus
By adjusting the length L and width K sizes of through hole, satisfactory trap wave point can obtain.
The size that the size of coupling window distinguishes corresponding medium single-chamber is identical.In the present embodiment, window is coupled
Width and the height width of corresponding medium single-chamber and highly identical respectively；So that coupling window and medium single-chamber it
Between connecting portion it is more, it is relatively reliable in structural strength；Only need, in coupling window processing through hole, to compare when processing simultaneously
Traditional coupling window processing reduces cutting output and cutting face causes the simpler convenience of processing technology.
In the present embodiment, there is metal screen layer on the surface of filtering body；Metal screen layer is by silver layer, i.e. wave filter sheet
The surface of body is coated with argent；Electromagnetic shielding action is served by silver layer, so as to which filter signal to be preferably strapped in filter
Inside ripple device, keep apart with exterior space.
In the present embodiment, solid dielectric material is provided with medium single-chamber；Solid dielectric material is hard ceramic medium material
Material；Compared to traditional air dielectric material, hard ceramic dielectric material has higher dielectric constant and relatively low dielectric loss,
Can be with significantly more efficient supporting construction；Meanwhile there is high stability, low damage using the dielectric filter of hard ceramic dielectric material
Consumption, a variety of advantages such as in light weight, cost is low, are well positioned to meet the requirements such as wave filter filter with low insertion loss, high suppressions, high power, simultaneously
Meet the development trend of wave filter miniaturization.
All there is a limiting value in the coupling amount of embodiment one and the coupled structure of the through-hole form in embodiment two, when need
When realizing big coupling amount, clear size of opening does not possess machinability, now it is contemplated that the number of increase through hole.
The principle of coupled structure in the utility model can operate with other kinds of wave filter, duplexer or combiner
Deng passive device.
Above-mentioned word is preferred embodiment of the present utility model, it is therefore intended that illustrates the utility model, not limiting
The scope of protection of the utility model, it is all within the spirit and principles of the utility model, any modification for being made, equivalent substitution,
Improve etc., it should be included within the scope of protection of the utility model.
Claims (8)
1. a kind of dielectric waveguide filter, it is characterised in that including filtering body；It is provided with and penetrates on described filtering body
Frequency connector；Described filtering body includes filter medium block；Described filter medium block include some medium single-chambers,
Some coupling windows, and adjacent medium single-chamber is connected by coupling window；The centre of described coupling window is provided with through hole.
A kind of 2. dielectric waveguide filter according to claim 1, it is characterised in that the size point of described coupling window
The size of not corresponding medium single-chamber is identical.
3. a kind of dielectric waveguide filter according to claim 1, it is characterised in that some medium single-chambers pass through coupling window
Head and the tail connect mouth successively.
4. a kind of dielectric waveguide filter according to claim 1, it is characterised in that described through hole is perceptual through hole.
5. a kind of dielectric waveguide filter according to claim 1, it is characterised in that there is metal on the surface of filtering body
Screen layer.
6. a kind of dielectric waveguide filter according to claim 5, it is characterised in that described metal screen layer is silver-colored
Layer.
7. a kind of dielectric waveguide filter according to claim 1, it is characterised in that described radio frequency connector includes defeated
Enter radio frequency connector, output radio frequency connector；Described input radio frequency connector and output radio frequency connector are respectively positioned at filtering
The both ends of device body.
8. a kind of dielectric waveguide filter according to claim 1, it is characterised in that be provided with described medium single-chamber
Solid dielectric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720455091.7U CN206864585U (en) | 2017-04-25 | 2017-04-25 | A kind of dielectric waveguide filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720455091.7U CN206864585U (en) | 2017-04-25 | 2017-04-25 | A kind of dielectric waveguide filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206864585U true CN206864585U (en) | 2018-01-09 |
Family
ID=60822804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720455091.7U Expired - Fee Related CN206864585U (en) | 2017-04-25 | 2017-04-25 | A kind of dielectric waveguide filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206864585U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069157A (en) * | 2017-04-25 | 2017-08-18 | 四川省韬光通信有限公司 | A kind of dielectric waveguide filter |
| CN109037861A (en) * | 2018-06-05 | 2018-12-18 | 深圳三星通信技术研究有限公司 | A kind of dielectric waveguide filter |
| CN109066022A (en) * | 2018-08-27 | 2018-12-21 | 重庆思睿创瓷电科技有限公司 | A kind of medium block and dielectric waveguide filter |
| CN109103553A (en) * | 2018-08-27 | 2018-12-28 | 重庆思睿创瓷电科技有限公司 | A kind of manufacturing method and its application of medium block |
| WO2019206195A1 (en) * | 2018-04-24 | 2019-10-31 | 华为技术有限公司 | Dielectric filter and communication device |
-
2017
- 2017-04-25 CN CN201720455091.7U patent/CN206864585U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069157A (en) * | 2017-04-25 | 2017-08-18 | 四川省韬光通信有限公司 | A kind of dielectric waveguide filter |
| WO2019206195A1 (en) * | 2018-04-24 | 2019-10-31 | 华为技术有限公司 | Dielectric filter and communication device |
| US11264686B2 (en) | 2018-04-24 | 2022-03-01 | Huawei Technologies Co., Ltd. | Dielectric filter and communications device |
| CN109037861A (en) * | 2018-06-05 | 2018-12-18 | 深圳三星通信技术研究有限公司 | A kind of dielectric waveguide filter |
| CN109066022A (en) * | 2018-08-27 | 2018-12-21 | 重庆思睿创瓷电科技有限公司 | A kind of medium block and dielectric waveguide filter |
| CN109103553A (en) * | 2018-08-27 | 2018-12-28 | 重庆思睿创瓷电科技有限公司 | A kind of manufacturing method and its application of medium block |
| CN109103553B (en) * | 2018-08-27 | 2019-11-29 | 重庆思睿创瓷电科技有限公司 | A kind of manufacturing method and its application of medium block |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206864585U (en) | A kind of dielectric waveguide filter | |
| CN109461995A (en) | A kind of waveguide filter using ceramic dielectric | |
| CN206864583U (en) | A kind of dielectric filter be easy to regulating frequency and couple bandwidth | |
| CN201063353Y (en) | Cavity filter with naught cavity | |
| WO2021196798A1 (en) | Communication apparatus, dielectric waveguide filter, and design method for suppressing far-end harmonic waves for dielectric waveguide filter | |
| CN110112517A (en) | A kind of 5G communication single layer dielectric waveguide filter | |
| CN111129669A (en) | Hybrid electromagnetic coupling all-dielectric filter | |
| CN107069157A (en) | A kind of dielectric waveguide filter | |
| CN105186079A (en) | Dual-band waveguide filter | |
| CN105489988B (en) | Dual-passband differential bandpass filter based on half module substrate integrated wave guide structure | |
| CN112928410B (en) | Dual-mode dielectric filter and zero adjusting method thereof | |
| CN201417810Y (en) | Wireless communication device with signal port | |
| CN207572507U (en) | A kind of miniaturization quasi-elliptic function microstrip bandpass filter based on SIR | |
| CN206893772U (en) | A kind of ceramic waveguide wave filter | |
| CN201011666Y (en) | Band stop filter | |
| CN103490123B (en) | plane bandpass filter | |
| CN106532201A (en) | Miniature wide stop band dual-mode balance band-pass filter based on annular resonator | |
| CN209119284U (en) | A kind of waveguide filter using ceramic dielectric | |
| CN209709140U (en) | A kind of 5G communication single layer dielectric waveguide filter | |
| CN209104333U (en) | A kind of rich font structure microstrip line low-pass filter | |
| CN106711603A (en) | Single-cavity three-mode filter slot antenna based on waveguide feed | |
| CN202662745U (en) | High-transmission time-delay filter | |
| CN207303308U (en) | Bandstop filter and radio-frequency devices | |
| CN202839922U (en) | High-power wide-band filter device | |
| CN203644914U (en) | Coaxial cavity dual-band filter based on step impedance structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |