CN106571506B - A kind of dielectric waveguide filter - Google Patents
A kind of dielectric waveguide filter Download PDFInfo
- Publication number
- CN106571506B CN106571506B CN201610983629.1A CN201610983629A CN106571506B CN 106571506 B CN106571506 B CN 106571506B CN 201610983629 A CN201610983629 A CN 201610983629A CN 106571506 B CN106571506 B CN 106571506B
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- Prior art keywords
- coupling
- waveguide filter
- dielectric waveguide
- window
- aperture
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Classifications
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- 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
Abstract
The present invention provides a kind of dielectric waveguide filter, including multiple resonators interconnected, and coupling window and coupling aperture are each formed between adjacent resonators；Wherein, each coupling window is sky shape cavity body structure, and be coated on each coupling window inner wall one for electromagnetic shielding first metallize coating；Each coupling aperture is the blind hole close to corresponding coupling window setting, and be coated on each coupling aperture inner wall one for electromagnetic shielding second metallize coating；The coupling amount of dielectric waveguide filter can be adjusted by carrying out grinding process to metallization coating corresponding on any coupling window or any coupling aperture.Implement the embodiment of the present invention, coupled structure is simple, technique requires and cost is relatively low.
Description
Technical field
The present invention relates to communications industry electrical appliance Element Technology field more particularly to a kind of dielectric waveguide filters.
Background technique
Waveguide filter is generallyd use in communication system by the interference signal or noise signal progress within the scope of special frequency channel
It filters out.Conventional waveguide filter construction is metal cavity structure, i.e., using precious materials (such as aluminium, magnesium such as metal or metal alloy
Alloy etc.) intermediate or part to be emptied, metal material primarily serves the effect of electromagnetic shielding and structural support, and uses this
The waveguide filter that kind of mode designs although Q value with higher, but its volume and weight are larger, are unfavorable for installing, tear open
It unloads and transports, and precious metal price is higher, cause waveguide filter cost also higher.
In order to solve the deficiency of above-mentioned waveguide filter, disclosed in the prior art application No. is 201310688407.3,
Publication No. CN 103618122A, the patent of invention of entitled dielectric waveguide filter, medium guide filter in the patent of invention
When device debugging coupling (as shown in Figure 1), screw 8 need to be used in window (between two medium single-chambers 1) position, it is deep by screw 8
Degree adjusts coupling amount.
But inventor has found that this method needs threaded portion (tuning swivel nut 6 or coupling swivel nut 10), debugging 8 and of screw
Nut (tuning nut 7 or coupling nut 9) matches, so that coupled structure is complicated, leads to technique requirement and higher cost.
Summary of the invention
The technical problem to be solved by the embodiment of the invention is that a kind of dielectric waveguide filter is provided, coupled structure letter
Single, technique requires and cost is relatively low.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of dielectric waveguide filter, the medium waves
Waveguide filter includes multiple resonators interconnected, and coupling window and coupling aperture are each formed between adjacent resonators；Its
In,
Each coupling window is sky shape cavity body structure, and one is coated on each coupling window inner wall for electromagnetism
First metallization coating of shielding；
Each coupling aperture is the blind hole close to corresponding coupling window setting, and is coated with a use on each coupling aperture inner wall
In the second metallization coating of electromagnetic shielding；
It can be carried out by the second metallization coating of the first metallization coating or any coupling aperture to any coupling window
Grinding process adjusts the coupling amount of the dielectric waveguide filter.
Wherein, when the first metallization coating of any coupling window edge of polishing, the coupling of the dielectric waveguide filter
Resultant enhancing.
Wherein, when the second metallization coating of any coupling aperture of polishing, the coupling amount of the dielectric waveguide filter subtracts
It is weak.
Wherein, it is described it is each coupling window inner wall on be coated be metallic silver first metallization coating；Each coupling
Close hole inner wall on be coated be metallic silver second metallization coating.
The implementation of the embodiments of the present invention has the following beneficial effects:
In embodiments of the present invention, due to passing through the first metallization coating or any coupling aperture to any coupling window
Second metallization coating carries out grinding process, the coupling amount of dielectric waveguide filter is adjusted, so that the coupling of dielectric waveguide filter
It closes simple structure, technique requirement and cost is relatively low.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, 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
Some embodiments of invention, for those of ordinary skill in the art, without any creative labor, according to
These attached drawings obtain other attached drawings and still fall within scope of the invention.
Fig. 1 is the schematic perspective view of dielectric waveguide filter in the prior art；
Fig. 2 is a kind of schematic perspective view of dielectric waveguide filter provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
As shown in Fig. 2, in the embodiment of the present invention, a kind of dielectric waveguide filter provided, dielectric waveguide filter packet
Multiple resonators interconnected 1 are included, and are each formed with coupling window 2 and coupling aperture 3 between adjacent resonators 1；Wherein,
Each coupling window 2 is sky shape cavity body structure, and one is coated on each 2 inner wall of coupling window for electromagnetic screen
The the first metallization coating covered；
Each coupling aperture 3 is the blind hole being arranged close to corresponding coupling window 2, and is coated on 3 inner wall of each coupling aperture
One the second metallization coating for electromagnetic shielding；
Can by it is any coupling window 2 first metallization coating or any coupling aperture 3 second metallization coating into
Row grinding process adjusts the coupling amount of dielectric waveguide filter.
In embodiments of the present invention, it needs to polish using dedicated tool, when any coupling 2 edge of window of polishing
When the first metallization coating, the coupling amount enhancing of dielectric waveguide filter；When the second metallization coating of any coupling aperture 3 of polishing
When, the coupling amount of dielectric waveguide filter weakens；Wherein, the first metallization coating and the second metallization coating are metallic silver shape
At coating.
The implementation of the embodiments of the present invention has the following beneficial effects:
In embodiments of the present invention, due to passing through the first metallization coating or any coupling aperture to any coupling window
Second metallization coating carries out grinding process, the coupling amount of dielectric waveguide filter is adjusted, so that the coupling of dielectric waveguide filter
It closes simple structure, technique requirement and cost is relatively low.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (2)
1. a kind of dielectric waveguide filter, which is characterized in that the dielectric waveguide filter includes multiple resonance interconnected
Device (1), and coupling window (2) and coupling aperture (3) are each formed between adjacent resonators (1)；Wherein,
Each coupling window (2) is sky shape cavity body structure, and is coated with one on each coupling window (2) inner wall and is used for electricity
First metallization coating of magnetic screen；
Each coupling aperture (3) is the blind hole close to corresponding coupling window (2) setting, and on each coupling aperture (3) inner wall
Be coated with one for electromagnetic shielding second metallize coating；
Can by it is any coupling window (2) first metallization coating or any coupling aperture (3) second metallization coating into
Row grinding process adjusts the coupling amount of the dielectric waveguide filter；
Wherein, when the first metallization coating at any coupling window (2) edge of polishing, the coupling of the dielectric waveguide filter
Amount enhancing；
Wherein, when the second metallization coating of any coupling aperture (3) of polishing, the coupling amount of the dielectric waveguide filter subtracts
It is weak.
2. dielectric waveguide filter as described in claim 1, which is characterized in that applied on each coupling window (2) inner wall
Have be metallic silver first metallization coating；Be coated on each coupling aperture (3) inner wall be metallic silver the second metal
Change coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610983629.1A CN106571506B (en) | 2016-11-09 | 2016-11-09 | A kind of dielectric waveguide filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610983629.1A CN106571506B (en) | 2016-11-09 | 2016-11-09 | A kind of dielectric waveguide filter |
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| Publication Number | Publication Date |
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| CN106571506A CN106571506A (en) | 2017-04-19 |
| CN106571506B true CN106571506B (en) | 2019-11-08 |
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| CN201610983629.1A Active CN106571506B (en) | 2016-11-09 | 2016-11-09 | A kind of dielectric waveguide filter |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037861B (en) * | 2018-06-05 | 2019-12-06 | 深圳三星通信技术研究有限公司 | Dielectric waveguide filter |
| CN109244615B (en) * | 2018-09-06 | 2024-04-05 | 武汉凡谷电子技术股份有限公司 | Capacitive coupling device and filter |
| CN110277613B (en) * | 2019-06-28 | 2021-12-17 | 武汉凡谷电子技术股份有限公司 | Laminated integrated dielectric filter |
| CN110137645B (en) * | 2019-07-01 | 2021-08-31 | 广东国华新材料科技股份有限公司 | Dielectric waveguide filter |
| CN110860982B (en) * | 2019-11-27 | 2021-04-16 | 武汉心浩智能科技有限公司 | Automatic debugging and polishing mechanism for dielectric filter |
| CN111370825B (en) * | 2020-04-03 | 2021-03-26 | 南京理工大学 | Balun filter based on ceramic dielectric resonator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104604022A (en) * | 2013-05-31 | 2015-05-06 | 华为技术有限公司 | Dielectric filter, transceiver and base station |
| CN106025468A (en) * | 2016-07-11 | 2016-10-12 | 苏州艾福电子通讯股份有限公司 | Ceramic cavity filter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003209411A (en) * | 2001-10-30 | 2003-07-25 | Matsushita Electric Ind Co Ltd | High frequency module and production method for high frequency module |
| CN204696219U (en) * | 2015-07-08 | 2015-10-07 | 四川九立微波有限公司 | A kind of high-power height suppresses waveguide bandpass filter |
| CN105006615A (en) * | 2015-07-15 | 2015-10-28 | 南京航空航天大学 | SIW band-pass filter |
| CN105244571B (en) * | 2015-09-17 | 2018-03-09 | 深圳三星通信技术研究有限公司 | A kind of dielectric waveguide filter |
| CN106785293B (en) * | 2017-03-20 | 2019-01-04 | 中国科学技术大学 | A kind of superconductive microwave nm harmonic chamber |
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2016
- 2016-11-09 CN CN201610983629.1A patent/CN106571506B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104604022A (en) * | 2013-05-31 | 2015-05-06 | 华为技术有限公司 | Dielectric filter, transceiver and base station |
| CN106025468A (en) * | 2016-07-11 | 2016-10-12 | 苏州艾福电子通讯股份有限公司 | Ceramic cavity filter |
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| CN106571506A (en) | 2017-04-19 |
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