CN107275729A - The assembly method of resonator, wave filter and resonator - Google Patents
The assembly method of resonator, wave filter and resonator Download PDFInfo
- Publication number
- CN107275729A CN107275729A CN201610219114.4A CN201610219114A CN107275729A CN 107275729 A CN107275729 A CN 107275729A CN 201610219114 A CN201610219114 A CN 201610219114A CN 107275729 A CN107275729 A CN 107275729A
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- China
- Prior art keywords
- metal
- cover board
- seal cover
- resonator
- metallic cavity
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/06—Cavity resonators
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
- H01P11/008—Manufacturing resonators
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses the assembly method of a kind of resonator, wave filter and resonator, the resonator includes：Metallic cavity, seal cover board, and dielectric resonance disk, metal resonance plate and the metal resonant column in metallic cavity, from top to bottom set gradually, seal cover board are fastened on metallic cavity upper surface to seal the metallic cavity；Seal cover board is provided with tuning screw, and the frequency of metal resonant column is tuned by the through hole on seal cover board, to screw in inside metallic cavity.The present invention is according to the characteristic that forceful electric power field distribution is not present between dielectric resonance disk and seal cover board, simplicity, the ease for operation of assembling realized with reference to the uniformity and zero point of metal resonant column material, so as to boostfiltering device power capacity, the height of whole wave filter is reduced simultaneously, the volume of wave filter is effectively compressed.
Description
Technical field
The present invention relates to the TE of communication technical field, more particularly to a kind of duplexer filter applied to base station
The resonator and its assembly method of mould (transverse electric mode) coated by dielectric metal and the filtering developed using this method
Device.
Background technology
In the duplexer filter of base station, generally using metal resonators.Metal resonators are generally using gold
Belong to coaxial resonant cavity, be mainly made up of seal cover board, tuning screw, metallic cavity, metal resonant column,
Through hole is provided with seal cover board, by tuning screw by the through hole on seal cover board, is screwed in cavity
Portion is tuned to the frequency of metal resonators, and its principle is：Formed between tuning screw and seal cover board
One electric capacity, by adjusting the distance between tuning screw and seal cover board, changes the capacitor's capacity size,
And then change the frequency of metal resonators.In certain adjusting range, adjustment tuning screw and seal cover board
The distance between it is smaller, the frequency of metal resonators is lower.
According to metal coaxial resonant cavity operation principle, metal resonators are in normal work, metal resonant column
There is high electric field distribution in upper surface, electric field is mainly distributed on resonance plate and closure at the top of metal resonant column
Between plate.If the upper surface of metal resonant column and seal cover board distance are too near, field strength can be caused too high,
Power is caused to be struck sparks.Therefore, the spacing in metal filter between resonant column upper surface and seal cover board is
One significant dimensions of duplexer filter power capacity design, and how to be issued to more in smaller spacing premise
High power capacity turns into the primary study direction of metal filter.
In order to reduce wave filter volume, a solution used at present is dielectric resonator, its principle
It is：Its wavelength can shorten this theoretical, use when being propagated using electromagnetic wave in high-k material
Resonator is made instead of traditional metal materials in dielectric material, under identical index, what dielectric resonator was made
The volume of wave filter can reduce.But dielectric resonator is present, and cost is high, material uniformity is poor, zero point reality
The shortcomings of existing mode is complicated, mounting process difficulty is big.
The content of the invention
It is a primary object of the present invention to provide a kind of resonator, wave filter and the assembly method of resonator,
It is intended to the volume for improving the power capacity of wave filter and being effectively compressed wave filter.
To achieve the above object, the present invention provides a kind of resonator, including：Metallic cavity, seal cover board,
And in the metallic cavity, from top to bottom set gradually dielectric resonance disk, metal resonance plate and
Metal resonant column, wherein：
Seal cover board is fastened on the metallic cavity upper surface with sealing metal cavity；
The metal resonant column is fixed on the metallic cavity bottom；
The lower surface of the metal resonance plate is closely connected with the upper surface of the metal resonant column；
The lower surface of the dielectric resonance disk is closely connected with the upper surface of the metal resonance plate；
The seal cover board is provided with tuning screw, by the through hole on seal cover board, to screw in metal
Inside cavity is tuned to the frequency of metal resonant column.
Preferably, the dielectric resonance disk is the thin slice that dielectric constant is more than metal.
Preferably, the metal resonance plate is positive conductive sheet metal, or, the metal resonance plate
To be arranged on the coat of metal of the dielectric resonance disk lower surface.
Preferably, the metal resonance plate is silver-plated thin slice or copper sheet.
Preferably, the metal resonant column lower surface is fastened on metallic cavity bottom using screw；And/or,
The dielectric resonance disk lower surface is closely connected with the metal resonance plate using welding or by silver-colored mode；With/
Or, the metal resonance plate lower surface is closely connected using welding manner with the metal resonant column.
Preferably, the metal resonant column is open-topped hollow tubular structure.
The embodiment of the present invention also proposes a kind of wave filter, including one or more resonators as described above.
The embodiment of the present invention also proposes a kind of assembly method of resonator, comprises the following steps：
Dielectric resonance disk lower surface is close-coupled on metal resonance plate；
Metal resonance plate is closely connected with metal resonant column；
Metal resonant column is fixed on metallic cavity bottom；
Tuning screw is passed through inside the through hole precession metallic cavity on seal cover board with the frequency to resonator
It is tuned；
Seal cover board is closely connected with metallic cavity upper surface, for sealing metal cavity.
The assembly method of a kind of resonator, wave filter and resonator that the embodiment of the present invention is proposed, the resonance
Device includes：Metallic cavity, the seal cover board for being fastened on metallic cavity upper surface, and positioned at metallic cavity
Dielectric resonance disk, metal resonance plate and metal resonant column interior, from top to bottom set gradually, seal cover board
Tuning screw is provided with, it is humorous to metal inside metallic cavity by the through hole on seal cover board, to screw in
The frequency of post of shaking is tuned, and the present invention is according to being not present highfield between dielectric resonance disk and seal cover board
The characteristic of distribution, with reference to metal resonant column material uniformity and zero point realize simplicity, assembling it is easy
Operability, so that boostfiltering device power capacity, while reducing the height of whole wave filter, is effectively compressed
The volume of wave filter.
Brief description of the drawings
Fig. 1 is the structure sectional view of prior art metal resonators；
Fig. 2 is the structure sectional view of prior art TE mould dielectric resonators；
Fig. 3 is the structure sectional view of resonator of the present invention；
Fig. 4 is the assembling schematic diagram of present media resonance plate and metal resonance plate；
Fig. 5 be present media resonance plate and metal resonance plate assembling after schematic diagram；
Fig. 6 is the assemble flow schematic diagram of resonator of the embodiment of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be done further referring to the drawings in conjunction with the embodiments
Explanation.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, limit is not used to
The fixed present invention.
Scheme of the embodiment of the present invention, which is mainly between foundation dielectric resonance disk and seal cover board, is not present highfield
The characteristic of distribution, with reference to metal resonant column material uniformity and zero point realize simplicity, assembling it is easy
Operability, so that boostfiltering device power capacity, while reducing the height of whole wave filter, is effectively compressed
The volume of wave filter.
The structure of existing metal resonators and TE mould dielectric resonators is introduced first.
As shown in figure 1, generally metal resonators are main by seal cover board 101, tuning screw 102, metal
Cavity 103, metal resonant column 104 are constituted, and the top of metal resonant column 104 is provided with resonance plate 1041, its
In：
The lower surface of metal resonant column 104 is fastened by screw or other modes are close-coupled at metallic cavity 103
On, seal cover board 101 is sealed with the top of metallic cavity 103 by screw, forms a closed chamber
Body.Tuning screw 102 is screwed in inside metallic cavity 103 to gold by the through hole on seal cover board 101
The frequency of category resonator is tuned.
According to metal coaxial resonant cavity operation principle, metal resonators are in normal work, metal resonant column
There is high electric field distribution in 104 upper surfaces, electric field is mainly distributed on the resonance plate at the top of metal resonant column 104
Between 1041 and seal cover board 101.If the upper surface of the resonance plate 1041 at the top of metal resonant column 104
With seal cover board 101 apart from too near, field strength (electric-field intensity) can be caused too high, cause power to be struck sparks.
Therefore, the spacing in metal filter between the upper surface of resonant column 104 and seal cover board 101 is duplexer
One significant dimensions of power capacity design, and how to be issued to higher power in smaller spacing premise and hold
Primary study direction of the amount as metal filter.
As shown in Fig. 2 generally TE moulds dielectric resonators it is main by seal cover board 201, dielectric tuning disk 202,
Metallic cavity 203, dielectric resonance post 204, metab 205 are constituted.Wherein：
Dielectric resonance post 204 is hollow tubular structure, and the lower surface of dielectric resonance post 204 passes through welding
Or other modes are close-coupled on metab 205, metab lower surface is fastened or it by screw
He is close-coupled in metallic cavity 203 mode mode, and seal cover board 201 passes through with metallic cavity 203
Screw is sealed, and forms an airtight cavity.Dielectric tuning disk 202 passes through on seal cover board 201
Through hole is tuned inside metallic cavity 203 to the frequency of dielectric resonator.Its principle is：Medium is adjusted
An electric capacity is formed between the humorous lower surface of disk 202 and seal cover board 201 upper surface, by adjusting dielectric tuning
The distance between disk 202 and seal cover board 201, change the capacitor's capacity size, and then change resonator
Frequency.
According to the operation principle of TE mould dielectric resonant chambers, medium, which is called on, shakes device in normal work, and medium is humorous
High electric field distribution is not present inside the upper and lower end face of post 204 and the metallic cavity 203 of shaking, electric-field intensity is mainly divided
Cloth is in the inside of dielectric resonance post 204 close to resonant column centre bore circumferential edge, and generally, electric-field intensity is in post
Shape is distributed, and from the inner surface of centre bore to outer surface, field strength is less and less.Therefore, with Metal cavity
Difference, the spacing between the top of TE mould dielectric resonances post 204 and seal cover board 201, to dielectric resonance
The power capacity influence of chamber is smaller.But TE mould dielectric resonators are present, and cost is high, material uniformity is poor, zero
The shortcomings of point implementation is complicated, mounting process difficulty is big.
In consideration of it, the advantage of metal resonant column and dielectric resonance post is combined realization by this embodiment scheme
A kind of resonant column of the coated by dielectric metal of brand new class.
Specifically, reference picture 3, Fig. 3 cuts open for the structure of the resonator of coated by dielectric metal of the embodiment of the present invention
View.
As shown in figure 3, a kind of resonator that the embodiment of the present invention is proposed, including：It is metallic cavity 305, close
Cover plate 301, and in the metallic cavity 305, the dielectric resonance disk that from top to bottom sets gradually
303rd, metal resonance plate 304 and metal resonant column 306, seal cover board 301 are fastened on the metallic cavity
305 upper surfaces with sealing metal cavity 305, wherein：
The metal resonant column 306 is fixed on the bottom of metallic cavity 305；
The lower surface of the metal resonance plate 304 is using welding or other modes and the metal resonant column 306
Upper surface closely connect；
The upper surface of the lower surface of the dielectric resonance disk 303 and the metal resonance plate 304, which is used, welds
Or (wherein, referred to cover one layer of silver in dielectric surface by silver, its coverage mode includes but is not limited to by silver
Plating, welding, bonding etc.) or other modes closely connect；
The seal cover board 301 is provided with tuning screw 302, to by the through hole on seal cover board 301,
Screw in inside metallic cavity 305 and the frequency of resonator is tuned.Its principle is：Tuning screw 302
An electric capacity is formed between seal cover board 301, by adjust tuning screw 302 and seal cover board 301 it
Between distance, change the capacitor's capacity size, and then change the frequency of resonator.
Wherein, the dielectric resonance disk 303 is the thin slice for any material that dielectric constant is more than metal.
The metal resonance plate 304 is sheet metal with good conductivity, is preferably silver-plated thin slice,
Copper sheet can be used, or, the metal resonance plate 304 is to be arranged under the dielectric resonance disk 303
The coat of metal on surface.
The present embodiment dielectric resonance disk 303 is identical with the structure of metal resonance plate 304, can include disk body,
Disk body is provided with interstitial hole.The assembling structure of dielectric resonance disk 303 and metal resonance plate 304 can be such as Fig. 4
And shown in Fig. 5, the lower surface of dielectric resonance disk 303 and the lower surface of metal resonance plate 304 by welding or its
He is closely joined together mode.
The metal resonant column 306 is open-topped hollow tubular structure.
Entirely the assembling process of coated by dielectric metal resonators is：
Closely connected by the lower surface of dielectric resonance disk 303 using welding or by silver or using other modes first
On metal resonance plate 304, then by metal resonance plate 304 using welding or other modes and metal resonance
Post 306 is closely connected；
Then metal resonant column 306 is fastened using screw or other modes is fixed on the bottom of metallic cavity 305
Portion；It is right that tuning screw 302 enters the inside of metallic cavity 305 through the through hole on seal cover board 301
Frequency is tuned；
Finally, seal cover board 301 is tight using screw fastening or other modes and the upper surface of metallic cavity 305
Close connection, for sealing metal cavity 305.
After the completion of coated by dielectric metal resonant column 306 is assembled, the upper surface of dielectric resonance disk 303 and closure
Field strength between plate 301 is relatively low, according to Theory of Electromagnetic Field, is so more beneficial for reduction chamber height, lifting filter
Ripple device power capacity.
In the absence of highfield point between foundation dielectric resonance of embodiment of the present invention disk 303 and seal cover board 301
The characteristic of cloth, with reference to the material of metal resonant column 306 uniformity and zero point realize simplicity, assembling
Ease for operation, so that boostfiltering device power capacity, while reducing the height of whole wave filter.
After the completion of assembling, the lower surface of dielectric resonance disk 303 fits like a glove with the upper surface of metal resonance plate 304
It is overlapping to be in close contact.
Coated by dielectric metal resonators provided in an embodiment of the present invention, it is ensured that resonator where resonator
And performance of filter is reliable and stable, simple production process, while boostfiltering device power capacity, reduces filter
Ripple body is accumulated.
The present invention also provides a kind of wave filter of coated by dielectric metal.
The wave filter of coated by dielectric metal provided in an embodiment of the present invention is implemented as described above including one or more
It is humorous by seal cover board, tuning screw, dielectric resonance disk, metal resonance plate, metallic cavity, metal in example
The coated by dielectric metal resonators for the compositions such as post of shaking.Coated by dielectric metal filter is by one or more media
Metal-loaded resonator is joined together to form a multistage coated by dielectric metal filter.
As shown in fig. 6, present pre-ferred embodiments propose a kind of assembly method of resonator, including：
Step S1, dielectric resonance disk lower surface is close-coupled on metal resonance plate；
Step S2, metal resonance plate is closely connected with metal resonant column；
Step S3, metallic cavity bottom is fixed on by metal resonant column；
Step S4, tuning screw is passed through inside the through hole precession metallic cavity on seal cover board with to resonance
The frequency of device is tuned；
Step S5, seal cover board is closely connected with metallic cavity upper surface, for sealing metal cavity.
Certainly, the assembly method of present media metal-loaded resonator includes and is not limited to above-mentioned five
Step.
For relevant technical staff in the field, technical scheme that can be according to embodiments of the present invention and its
Design, to combine or change, designs duplex, the wave filter of other combining structures to duplexer, wave filter
Integrated module, and all these changes or replacement should all belong to appended claims of the invention protection model
Enclose.
The characteristic of forceful electric power field distribution is not present between present invention foundation dielectric resonance disk and seal cover board, with reference to
Simplicity, the ease for operation of assembling of uniformity and the zero point realization of metal resonant column material, so as to be lifted
Filter power capacity, while reducing the height of whole wave filter, is effectively compressed the volume of wave filter.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every
The equivalent structure or equivalent flow conversion made using description of the invention and accompanying drawing content, or directly or
Connect and be used in other related technical fields, be included within the scope of the present invention.
Claims (8)
1. a kind of resonator, it is characterised in that including：Metallic cavity, seal cover board, and positioned at institute
Dielectric resonance disk, metal resonance plate and the metal resonant column state in metallic cavity, from top to bottom set gradually,
Wherein：
Seal cover board is fastened on the metallic cavity upper surface to seal the metallic cavity；
The metal resonant column is fixed on the metallic cavity bottom；
The lower surface of the metal resonance plate is closely connected with the upper surface of the metal resonant column；
The lower surface of the dielectric resonance disk is closely connected with the upper surface of the metal resonance plate；
The seal cover board is provided with tuning screw, by the through hole on seal cover board, to screw in metal
Inside cavity is tuned to the frequency of metal resonant column.
2. resonator according to claim 1, it is characterised in that the dielectric resonance disk is dielectric
Constant is more than the thin slice of metal.
3. resonator according to claim 2, it is characterised in that the metal resonance plate is benign
Conductive metal thin plate, or, the metal resonance plate is the gold for being arranged on the dielectric resonance disk lower surface
Belong to coating.
4. resonator according to claim 3, it is characterised in that the metal resonance plate is silver-plated
Thin slice or copper sheet.
5. resonator according to claim 2, it is characterised in that the metal resonant column lower surface
Metallic cavity bottom is fastened on using screw；And/or, the dielectric resonance disk lower surface and the metal are humorous
The disk that shakes closely is connected using welding or by silver-colored mode；And/or, the metal resonance plate lower surface is using welding
Mode is closely connected with the metal resonant column.
6. the resonator according to any one of claim 1-5, it is characterised in that the metal is humorous
The post that shakes is open-topped hollow tubular structure.
7. a kind of wave filter, it is characterised in that including one or more such as any one of claim 1-6
Described resonator.
8. a kind of assembly method of resonator, it is characterised in that comprise the following steps：
Dielectric resonance disk lower surface is close-coupled on metal resonance plate；
Metal resonance plate is closely connected with metal resonant column；
Metal resonant column is fixed on metallic cavity bottom；
Tuning screw is passed through inside the through hole precession metallic cavity on seal cover board with the frequency to resonator
It is tuned；
Seal cover board is closely connected with metallic cavity upper surface, for sealing metal cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610219114.4A CN107275729A (en) | 2016-04-08 | 2016-04-08 | The assembly method of resonator, wave filter and resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610219114.4A CN107275729A (en) | 2016-04-08 | 2016-04-08 | The assembly method of resonator, wave filter and resonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107275729A true CN107275729A (en) | 2017-10-20 |
Family
ID=60051952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610219114.4A Withdrawn CN107275729A (en) | 2016-04-08 | 2016-04-08 | The assembly method of resonator, wave filter and resonator |
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| Country | Link |
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| CN (1) | CN107275729A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054478A (en) * | 2017-12-11 | 2018-05-18 | 四川九鼎智远知识产权运营有限公司 | A kind of ultra-wide band filter |
| CN108091976A (en) * | 2017-12-11 | 2018-05-29 | 四川九鼎智远知识产权运营有限公司 | A kind of resonant oscillator |
| CN110459849A (en) * | 2019-08-05 | 2019-11-15 | 苏州诺泰信通讯有限公司 | A method of reducing resonance frequency |
| CN111384536A (en) * | 2018-12-29 | 2020-07-07 | 深圳市大富科技股份有限公司 | Medium-loaded cavity filter and communication equipment |
| WO2022158828A1 (en) * | 2021-01-19 | 2022-07-28 | Samsung Electronics Co., Ltd. | Dielectric resonator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1418640A2 (en) * | 2000-05-23 | 2004-05-12 | Matsushita Electric Industrial Co., Ltd. | Dielectric resonator filter |
| CN201946731U (en) * | 2010-12-17 | 2011-08-24 | 摩比天线技术（深圳）有限公司 | Resonator and filter with same |
| CN103022621A (en) * | 2012-12-18 | 2013-04-03 | 四川九洲电器集团有限责任公司 | Resonator utilizing medium block loading |
| CN204361232U (en) * | 2015-01-27 | 2015-05-27 | 武汉凡谷电子技术股份有限公司 | A kind of resonant cavity that significantly can reduce resonance frequency |
| CN104716411A (en) * | 2013-12-17 | 2015-06-17 | 天津市康丰达石油工程有限公司 | Cavity filter with small size |
-
2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1418640A2 (en) * | 2000-05-23 | 2004-05-12 | Matsushita Electric Industrial Co., Ltd. | Dielectric resonator filter |
| CN201946731U (en) * | 2010-12-17 | 2011-08-24 | 摩比天线技术（深圳）有限公司 | Resonator and filter with same |
| CN103022621A (en) * | 2012-12-18 | 2013-04-03 | 四川九洲电器集团有限责任公司 | Resonator utilizing medium block loading |
| CN104716411A (en) * | 2013-12-17 | 2015-06-17 | 天津市康丰达石油工程有限公司 | Cavity filter with small size |
| CN204361232U (en) * | 2015-01-27 | 2015-05-27 | 武汉凡谷电子技术股份有限公司 | A kind of resonant cavity that significantly can reduce resonance frequency |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054478A (en) * | 2017-12-11 | 2018-05-18 | 四川九鼎智远知识产权运营有限公司 | A kind of ultra-wide band filter |
| CN108091976A (en) * | 2017-12-11 | 2018-05-29 | 四川九鼎智远知识产权运营有限公司 | A kind of resonant oscillator |
| CN111384536A (en) * | 2018-12-29 | 2020-07-07 | 深圳市大富科技股份有限公司 | Medium-loaded cavity filter and communication equipment |
| CN110459849A (en) * | 2019-08-05 | 2019-11-15 | 苏州诺泰信通讯有限公司 | A method of reducing resonance frequency |
| WO2022158828A1 (en) * | 2021-01-19 | 2022-07-28 | Samsung Electronics Co., Ltd. | Dielectric resonator |
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Application publication date: 20171020 |