CN110224205A - Surface-mount type dielectric filter containing through-hole type input/output structure - Google Patents
Surface-mount type dielectric filter containing through-hole type input/output structure Download PDFInfo
- Publication number
- CN110224205A CN110224205A CN201910465713.8A CN201910465713A CN110224205A CN 110224205 A CN110224205 A CN 110224205A CN 201910465713 A CN201910465713 A CN 201910465713A CN 110224205 A CN110224205 A CN 110224205A
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- hole
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- output
- conductive layer
- output structure
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- 238000002955 isolation Methods 0.000 claims abstract description 22
- 239000003989 dielectric material Substances 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims abstract description 7
- 238000007493 shaping process Methods 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims description 39
- 238000010168 coupling process Methods 0.000 claims description 39
- 238000005859 coupling reaction Methods 0.000 claims description 39
- 230000008054 signal transmission Effects 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- H01P1/2002—Dielectric waveguide filters
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
This application discloses a kind of surface-mount type dielectric filters containing through-hole type input/output structure, including two ontologies made of solid dielectric material, this the two ontology stacked combination shaping filter main bodys, the body surface is coated with conductive layer, the filter main body is formed with input and output through-hole or blind hole along perpendicular to stacking face direction, the input and output through-hole or blind hole surface are formed with conductive layer, the input and output through-hole or blind hole are surrounded on isolation channel in the body surface respectively, the isolation rooved face is without conductive layer, the isolation channel extends to the filter main body mounting surface and forms input/output pads in the mounting surface.The invention has the advantages that it is larger to overcome existing waveguide filter volume, the problem of using connection equipment occupation space.
Description
Technical field
This application involves field of communication technology, in particular to a kind of surface-mount type medium containing through-hole type input/output structure
Filter.
Background technique
Dielectric waveguide filter exactly metallizes dielectric material all surface, direct shaping filter, such energy
It is enough that energy is strapped in a medium, rather than image antenna directly radiates energy in entire space like that, it in this way can be big
The big loss reduced in energy transport.
Medium Wave Guide is using media ceramic as filled media, and under same resonance frequency, dielectric material dielectric constant is higher,
The volume of Medium Wave Guide is smaller.And reach smaller volume under the conditions of identical dielectric constant, then it needs in Medium Wave Guide side
Metalized blind vias is set, and dielectric waveguide filter forms capacitor by blind hole and other side silver layer, and forms electricity by blind hole side wall
Sense carries out resonance, reduces frequency, and then reduce Medium Wave Guide volume.
Furthermore R. Fan Jiala et al. is filed on August 26th, 2015 in 104871364 A of patent CN, by using heap
Multiple dielectrics are stitched together to achieve the purpose that reduce outer dimension by folded mode, but such method makes filter
Pass input and output are no longer at the bottom of filter, make filter in installation to communication system Shi Shanghou, it is still desirable to
The other forms such as cable lead to the signal of filter on the circuit board of communication system, are unfavorable for system compact and system collection
At.
Summary of the invention
The purpose of the present invention is to provide a kind of surface-mount type dielectric filter containing through-hole type input/output structure, with gram
It is larger to take existing waveguide filter volume, using connection equipment occupation space the problem of.
To achieve the above object, the present invention provides the following technical solutions.
The embodiment of the present application discloses a kind of surface-mount type dielectric filter containing through-hole type input/output structure, including two
A ontology made of solid dielectric material, this two ontology stacked combination shaping filter main bodys, the body surface
It is coated with conductive layer, the filter main body is formed with input and output through-hole or blind hole along perpendicular to stacking face direction, described defeated
Enter to export through-hole or blind hole surface is formed with conductive layer, the input and output through-hole or blind hole are surrounded respectively in the body surface
In isolation channel, the isolation rooved face extends to the filter main body mounting surface without conductive layer, the isolation channel and described
Mounting surface forms input/output pads.
Preferably, in the above-mentioned surface-mount type dielectric filter containing through-hole type input/output structure, two described
Body is formed with multiple resonators being arranged respectively at the stacking face back side, and the resonator central is formed with frequency modulation blind hole, phase
Adjacent two resonators are by coupling device separation, and the ontology is in being formed with signal transmission window, the signal on stacking face
Transmission window surface is without conductive layer.
It is furthermore preferred that in the above-mentioned surface-mount type dielectric filter containing through-hole type input/output structure, it is each described
Ontology is formed with 2 or multiple resonators.
It is furthermore preferred that in the above-mentioned surface-mount type dielectric filter containing through-hole type input/output structure, it is each described
Resonator inside forms a frequency modulation blind hole.
It is furthermore preferred that in the above-mentioned surface-mount type dielectric filter containing through-hole type input/output structure, the coupling
Device includes coupling throughhole or coupling rectangular slot, and perpendicular to the face of stacking, the coupling is logical for the coupling throughhole or coupling rectangular slot
Hole or coupling rectangular rooved face are formed with conductive layer.
Preferably, in the above-mentioned surface-mount type dielectric filter containing through-hole type input/output structure, the solid-state is situated between
Electric material is ceramics or quartz glass.
Preferably, in the above-mentioned surface-mount type dielectric filter containing through-hole type input/output structure, the conductive layer
For silver or copper.
Compared with prior art, the invention has the advantages that reducing the body of dielectric waveguide filter by using the mode of stacking
Product, while volume can be further decreased in resonator central setting blind hole；By input and output through-hole or blind hole in body surface
The transmission line of isolation channel and formation is opened up, pad can be formed in dielectric waveguide filter bottom, by input and output position by two sides
Change to dielectric waveguide filter bottom, to directly be connected with system circuit board, eliminates the sky for connecing equipment using even signal
Between and cost, be conducive to the miniaturization of system and integrated.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 show the vertical of the surface-mount type dielectric filter containing through-hole type input/output structure in the embodiment of the present invention 1
Body perspective view；
Fig. 2 show the vertical of the surface-mount type dielectric filter containing through-hole type input/output structure in the embodiment of the present invention 2
Body perspective view.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out detailed retouch
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, those of ordinary skill in the art's every other implementation obtained without making creative work
Example, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment 1, with a 6 chamber resonator, and coupling device for the form of coupling throughhole using being illustrated.
As shown in Figure 1, the surface-mount type dielectric filter containing through-hole type input/output structure, including two by solid dielectric
Ontology 110 made of material, two ontologies, the 110 stacked combination shaping filter main body 100,110 surface of ontology, which is coated with, leads
Electric layer, filter main body 100 are formed with input and output through-hole 120, input and output through-hole 120 along perpendicular to 140 direction of stacking face
Surface is formed with conductive layer, and input and output through-hole 120 is surrounded on isolation channel 130,130 table of isolation channel in 110 surface of ontology respectively
Without conductive layer, isolation channel 130 extends to 100 mounting surface 180 of filter main body and forms input/output pads in mounting surface 180 in face
190, two ontologies 110 are formed with 3 resonators being arranged 150,150 center of resonator respectively at 140 back side of stacking face
It is formed with frequency modulation blind hole, adjacent two resonator 150 is separated by coupling device, and ontology 110 is in being formed with signal on stacking face 140
Transmission window 160,160 surface of signal transmission window is without conductive layer.Coupling device includes coupling throughhole 170, and coupling throughhole 170 hangs down
Directly in stacking face 140,170 surface of coupling throughhole is formed with conductive layer.
In the embodiment, isolation channel and ontology are obstructed, and input and output through-hole (or using blind hole) is located in barrier region, are led to
Groove width, the size, position of adjustment isolation channel are crossed, the input and output of adjustable filter couple amplitude；Adjacent two resonator is logical
Overcoupling through-hole separates, by adjusting the RF coupling amount between adjustable adjacent two resonator in position of coupling throughhole；Often
A resonator is provided with frequency modulation blind hole, and blind hole depth controls corresponding resonant frequency, is covered with conductive layer in blind hole；Signal transmission window
Mouth is provided with 2, and radiofrequency signal carries out RF coupling by signal transmission window between the bodies, by adjusting signal transmission window
Mouthful size, position, the RF coupling amplitude between adjustable ontology.
The embodiment has the advantages that be designed by using suitable isolation channel, dielectric waveguide filter can be led to
Hole input and output direction changes from ceramic body side wall to ceramic body bottom, directly welds with system circuit board, without in addition
Using connection equipment, connection equipment the space occupied is reduced and using connection equipment bring cost；Meanwhile using with blind
The resonator of pore structure can further decrease the volume of dielectric waveguide filter, provide for the miniaturization of system with integrated
It is convenient.
Embodiment 2, with a 8 chamber resonator, and coupling device for the form of coupling slot using being illustrated.
As shown in Fig. 2, the surface-mount type dielectric filter containing through-hole type input/output structure, including two by solid dielectric
Ontology 210 made of material, two ontologies, the 210 stacked combination shaping filter main body 200,210 surface of ontology, which is coated with, leads
Electric layer, filter main body 200 are formed with input and output through-hole 220, input and output through-hole 220 along perpendicular to 240 direction of stacking face
Surface is formed with conductive layer, and input and output through-hole 220 is surrounded on isolation channel 230,230 table of isolation channel in 210 surface of ontology respectively
Without conductive layer, isolation channel 230 extends to 200 mounting surface 280 of filter main body and forms input/output pads in mounting surface 280 in face
290, two ontologies 210 are formed with 4 resonators being arranged 250,250 center of resonator respectively at 240 back side of stacking face
It is formed with frequency modulation blind hole, adjacent two resonator 250 is separated by coupling device, and ontology 210 is in being formed with signal on stacking face 240
Transmission window 260,260 surface of signal transmission window is without conductive layer.Coupling device includes coupling rectangular slot 270, coupling rectangular slot
270 perpendicular to face 240 is stacked, and 270 surface of coupling rectangular slot is formed with conductive layer.
Substantially the same manner as Example 1 in the embodiment, isolation channel and ontology obstruct, input and output through-hole (or using blind
Hole) it is located in barrier region, by adjusting the groove width, size, position of isolation channel, the input and output of adjustable filter are coupled
Amplitude；Adjacent two resonator is separated by coupling rectangular slot, by adjusting the adjustable phase of groove width and groove depth of coupling rectangular slot
RF coupling amount between adjacent two resonators；Each resonator is provided with frequency modulation blind hole, and blind hole depth controls corresponding resonator frequency
Rate is covered with conductive layer in blind hole；Signal transmission window is provided with 3, and radiofrequency signal passes through signal transmission window between the bodies
Carry out RF coupling, size, position by adjusting signal transmission window, the RF coupling amplitude between adjustable ontology.
It should be noted that this case is equally applicable to the medium wave of other quantity resonator in addition to above-mentioned two implementation column
Waveguide filter.
Further, solid dielectric material is preferably ceramics.Ceramics dielectric constant with higher, hardness and resistant to high temperature
Performance is also relatively good, therefore becomes the common solid dielectric material in radio-frequency filter field.Certainly, dielectric material can also be selected
Other materials known to those skilled in the art, such as the high molecular polymer of glass, electrical isolation.
Further, the conductive layer is silver.
Conductive layer is preferably the high conductivity materials such as silver.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (7)
1. a kind of surface-mount type dielectric filter containing through-hole type input/output structure, which is characterized in that including two by solid-state
Ontology made of dielectric material, this two ontology stacked combination shaping filter main bodys, the body surface, which is coated with, leads
Electric layer, the filter main body are formed with input and output through-hole or blind hole along perpendicular to stacking face direction, and the input and output are logical
Hole or blind hole surface are formed with conductive layer, and the input and output through-hole or blind hole are surrounded on isolation channel in the body surface, institute
Isolation rooved face is stated without conductive layer, the isolation channel extends to the filter main body mounting surface and formed in the mounting surface defeated
Enter o pads.
2. the surface-mount type dielectric filter according to claim 1 containing through-hole type input/output structure, which is characterized in that
Two ontologies are formed with multiple resonators being arranged respectively at the stacking face back side, and the resonator central is formed with tune
Frequency blind hole, adjacent two resonator are separated by coupling device, the ontology in being formed with signal transmission window on stacking face,
Signal transmission window surface is without conductive layer.
3. the surface-mount type dielectric filter according to claim 2 containing through-hole type input/output structure, which is characterized in that
Each ontology is formed with 2 or multiple resonators.
4. the surface-mount type dielectric filter according to claim 2 containing through-hole type input/output structure, which is characterized in that
Each resonator inside forms a frequency modulation blind hole.
5. the surface-mount type dielectric filter according to claim 2 containing through-hole type input/output structure, which is characterized in that
The coupling device includes coupling throughhole or coupling rectangular slot, and the coupling throughhole or coupling rectangular slot are perpendicular to the face of stacking, institute
It states coupling throughhole or coupling rectangular rooved face is formed with conductive layer.
6. the surface-mount type dielectric filter according to claim 1 containing through-hole type input/output structure, which is characterized in that
The solid dielectric material is ceramics or quartz glass.
7. the surface-mount type dielectric filter according to claim 1 containing through-hole type input/output structure, which is characterized in that
The conductive layer is silver or copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465713.8A CN110224205A (en) | 2019-05-30 | 2019-05-30 | Surface-mount type dielectric filter containing through-hole type input/output structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465713.8A CN110224205A (en) | 2019-05-30 | 2019-05-30 | Surface-mount type dielectric filter containing through-hole type input/output structure |
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| Publication Number | Publication Date |
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| CN110224205A true CN110224205A (en) | 2019-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910465713.8A Pending CN110224205A (en) | 2019-05-30 | 2019-05-30 | Surface-mount type dielectric filter containing through-hole type input/output structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110707399A (en) * | 2019-09-16 | 2020-01-17 | 江苏亨鑫科技有限公司 | Variable coupling structure of dielectric resonator and dielectric waveguide filter |
| CN111430859A (en) * | 2020-03-24 | 2020-07-17 | 深圳市大富科技股份有限公司 | Dielectric filter and communication base station |
| WO2021062787A1 (en) * | 2019-09-30 | 2021-04-08 | 华为技术有限公司 | Dielectric filter and communication device |
| WO2021077379A1 (en) * | 2019-10-24 | 2021-04-29 | 华为技术有限公司 | Band-stop filter and electronic device |
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| CN1360359A (en) * | 2000-12-19 | 2002-07-24 | 株式会社村田制作所 | Dielectric filter, dielectric diplexer and communication apparatus |
| CN106450603A (en) * | 2016-08-24 | 2017-02-22 | 张家港保税区灿勤科技有限公司 | Filter for transmitting part of base station |
| CN108832240A (en) * | 2018-06-07 | 2018-11-16 | 张家港保税区灿勤科技有限公司 | The dielectric waveguide filter that distal end inhibits can be improved |
| CN210074108U (en) * | 2019-05-30 | 2020-02-14 | 江苏灿勤科技股份有限公司 | Surface-mounted dielectric filter with through hole type input/output structure |
-
2019
- 2019-05-30 CN CN201910465713.8A patent/CN110224205A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1360359A (en) * | 2000-12-19 | 2002-07-24 | 株式会社村田制作所 | Dielectric filter, dielectric diplexer and communication apparatus |
| CN106450603A (en) * | 2016-08-24 | 2017-02-22 | 张家港保税区灿勤科技有限公司 | Filter for transmitting part of base station |
| CN108832240A (en) * | 2018-06-07 | 2018-11-16 | 张家港保税区灿勤科技有限公司 | The dielectric waveguide filter that distal end inhibits can be improved |
| CN210074108U (en) * | 2019-05-30 | 2020-02-14 | 江苏灿勤科技股份有限公司 | Surface-mounted dielectric filter with through hole type input/output structure |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110707399A (en) * | 2019-09-16 | 2020-01-17 | 江苏亨鑫科技有限公司 | Variable coupling structure of dielectric resonator and dielectric waveguide filter |
| WO2021062787A1 (en) * | 2019-09-30 | 2021-04-08 | 华为技术有限公司 | Dielectric filter and communication device |
| CN114402483A (en) * | 2019-09-30 | 2022-04-26 | 华为技术有限公司 | Dielectric filter and communication apparatus |
| CN114402483B (en) * | 2019-09-30 | 2023-08-22 | 华为技术有限公司 | Dielectric filter and communication device |
| WO2021077379A1 (en) * | 2019-10-24 | 2021-04-29 | 华为技术有限公司 | Band-stop filter and electronic device |
| US12034195B2 (en) | 2019-10-24 | 2024-07-09 | Huawei Technologies Co., Ltd. | Band-stop filter and electronic device |
| CN111430859A (en) * | 2020-03-24 | 2020-07-17 | 深圳市大富科技股份有限公司 | Dielectric filter and communication base station |
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