CN203967220U - Spliced dielectric filter - Google Patents
Spliced dielectric filter Download PDFInfo
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- CN203967220U CN203967220U CN201420283976.XU CN201420283976U CN203967220U CN 203967220 U CN203967220 U CN 203967220U CN 201420283976 U CN201420283976 U CN 201420283976U CN 203967220 U CN203967220 U CN 203967220U
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- blind hole
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- spliced
- dielectric filter
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Abstract
The utility model discloses a kind of spliced dielectric filter, this dielectric filter is spliced mutually by multiple medium lists chamber, and each medium list chamber, along vertically all offering frequency tuning blind hole, is provided with frequency tuning structure in frequency tuning blind hole; The Mosaic face in adjacent media list chamber is in contact with one another, the Mosaic face in adjacent media list chamber is provided with along vertical corresponding position the groove matching, after the groove splicing matching, form a columnar coupling tuning blind hole, in coupling tuning blind hole, be provided with coupling tuning structure.The utility model is designed to traditional monolithic dielectric filter to be mutually spliced by multiple medium lists chamber, like this in processing and manufacturing in the time there is the local damage of certain medium list chamber, can replace this medium list chamber separately, and then avoid occurring in background technology that the phenomenon of scrapping whole block material because of certain medium list chamber local damage occurs, to reach the object of saving manufacturing cost.
Description
Technical field
The utility model relates to communications industry electrical appliance Element Technology field, refers to particularly a kind of spliced dielectric filter.
Background technology
In communication system, conventionally adopt filter by the interference signal within the scope of special frequency channel or noise signal filtering.Conventional filter structure is metallic cavity structure, adopts the precious materials such as metal or metal alloy (as: aluminium, magnesium alloy etc.) that centre or part are emptied, and its metal material mainly plays the effect of electromagnetic shielding and support structure.Although the filter that adopts this kind of mode to design has higher Q value, its volume and weight are larger, are unfavorable for installing, dismantle and transport; And because precious metal price is higher, cause filter cost also higher.
In addition, the tuning structure of prior art medium filter generally plays the effect of frequency tuning by removing dielectric material on the width of small part medium list chamber, such filter tuner structural limitations filter walk chamber form, be unfavorable for diversification and the adaptability of filter construction design.
Dielectric filter is the integral structure manufacturing and designing with function mostly, adopts whole block material to process, and is easy to cause local lesion, and then scraps whole block material in the time of its processing and manufacturing; And the factor that material is scrapped is subject to the restriction of processing place number, processing place number is more, and easier generating material is scrapped phenomenon; In addition, because being subject to the impact of medium shrinkage, the medium green compact deflection after sintering processing is larger, wayward, and production cost is increased greatly.
Therefore, need improve prior art.
Summary of the invention
The purpose of this utility model is exactly the deficiency that will solve above-mentioned background technology, provides a kind of process and assemble easy, and debugging is convenient, and lower-cost spliced dielectric filter.
The technical solution of the utility model is: a kind of spliced dielectric filter, it is characterized in that: this dielectric filter is spliced mutually by multiple medium lists chamber, described medium list chamber is the solid cavity of making by dielectric material, and the surface of described solid cavity is provided with electro-magnetic screen layer; Each medium list chamber, along vertically all offering frequency tuning blind hole, is provided with frequency tuning structure in described frequency tuning blind hole; The Mosaic face in adjacent media list chamber is in contact with one another.
Further, the Mosaic face in described adjacent media list chamber is provided with along vertical corresponding position the groove matching, described in form a columnar coupling tuning blind hole after the groove splicing that matches, in described coupling tuning blind hole, be provided with coupling tuning structure.
Further, described medium list chamber is the solid cavity that ceramic medium material is made, and described electro-magnetic screen layer is metal level or metal alloy layer.
Preferably, described dielectric filter is mutually bonding or be welded by multiple medium lists chamber.
Further, described frequency tuning structure comprises the frequency tuning screw being arranged in frequency tuning blind hole, one end of described frequency tuning screw is arranged in frequency tuning blind hole, between the circle wall of described frequency tuning screw and frequency tuning blind hole, be provided with gap, the other end end thread of described frequency tuning screw is connected in the first nut, between described the first nut and medium list chamber, be provided with the first swivel nut, described the first swivel nut is fixedly connected with medium list chamber, and described the first swivel nut is passed by frequency tuning screw.
Further, described coupling tuning structure comprises the coupling tuning screw being arranged in coupling tuning blind hole, one end of described coupling tuning screw is arranged in coupling tuning blind hole, between the circle wall of described coupling tuning screw and coupling tuning blind hole, be provided with gap, the other end end thread of described coupling tuning screw is connected in the second nut, between described the second nut and medium list chamber, be provided with the second swivel nut, described the second swivel nut is fixedly connected with medium list chamber, and described the second swivel nut is coupled tuning screw and passes.
The utility model utilizes air different from the dielectric constant of medium, be that air part is filled to dielectric material by the cavity of conventional metals cavity filter, be provided with electro-magnetic screen layer on the surface of dielectric material and carry out electromagnetic shielding, utilize this dielectric material to support simultaneously, the dielectric filter that makes to design has that volume is little, lightweight, environmental protection and the plurality of advantages such as cost is low, can meet preferably the development trends such as following filter, duplexer and multiplexer series products small size, light weight, low cost, high-performance and environmental protection.
The utility model is designed to traditional monolithic dielectric filter to be mutually spliced by multiple medium lists chamber, like this in processing and manufacturing process, in the time there is the local damage of certain medium list chamber, can replace this medium list chamber separately, and then avoid occurring in background technology that the phenomenon of scrapping whole block material because of certain medium list chamber local damage occurs, to reach the object of saving manufacturing cost.
Brief description of the drawings
Fig. 1 is the medium list chamber splicing schematic diagram of the designed spliced dielectric filter of the utility model;
Fig. 2 is the utility model perspective view;
Fig. 3 is the designed spliced dielectric filter structure vertical view of the utility model;
Fig. 4 is splicing schematic diagram in adjacent media list chamber in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The spliced dielectric filter of one as shown in FIG., this dielectric filter is interconnected and is formed by multiple medium lists chamber 1, between medium list chamber 1, can adopt separately the mode of series connection to connect, also can adopt separately mode in parallel to connect, the mode also can series and parallel connections mutually combining connects.The solid cavity of medium list chamber 1 for making by dielectric material, the surface of solid cavity is provided with electro-magnetic screen layer.
Innovative point of the present utility model is: dielectric filter by multiple medium lists chamber 1 by being mutually spliced, the Mosaic face in adjacent media list chamber 1 is in contact with one another, in dielectric filter is manufactured, dielectric filter is not on integral module, to process each medium list chamber 1, but first by each little module being processed into each medium list chamber, again medium list chamber is spliced into a dielectric filter mutually, like this in processing and manufacturing in the time there is 1 local damage of certain medium list chamber, can replace this medium list chamber 1 separately, and then avoid occurring in background technology that the phenomenon of scrapping whole block material because of certain medium list chamber local damage occurs, to reach the object of saving manufacturing cost.
Hard ceramic dielectric material is selected in medium list chamber 1 in the present embodiment, and the filter that ceramic medium material is made has miniaturization, high stability, low-loss feature, and effective self-sustained; Electro-magnetic screen layer is at solid housing surface roasting or plating layer of metal or metal alloy layer, carries out electromagnetic shielding.
In the present embodiment, chamber form is walked according to filter in a medium list chamber 1, can only be connected with a medium list chamber 1, also can be connected with multiple medium lists chamber 1.
Adjacent media list chamber 1 can be spliced by welding or bonding mode.
The present embodiment along vertically all offering frequency tuning blind hole 2, is provided with frequency tuning structure in each medium list chamber in frequency tuning blind hole 2; Mosaic face in adjacent media list chamber 1 is provided with along vertical corresponding position the groove matching, and after the groove splicing matching, forms a columnar coupling tuning blind hole 3, is provided with coupling tuning structure in coupling tuning blind hole 3.The present embodiment is by the Mosaic face direct splicing in adjacent media list chamber 1, cancelled and between former adjacent media list chamber, needed the mode that connects by coupling bridge etc., can reduce to a greater degree volume and weight, saved accordingly processing cost.
With reference to figure 4, the frequency tuning structure of the present embodiment comprises the frequency tuning screw 4 being arranged in frequency tuning blind hole 2, one end of frequency tuning screw 4 is arranged in frequency tuning blind hole, between the circle wall of frequency tuning screw 4 and frequency tuning blind hole 2, be provided with gap, the other end end thread of frequency tuning screw 4 is connected in the first nut 5, between the first nut 5 and medium list chamber 1, be provided with the first swivel nut 6, the first swivel nut 6 is fixedly connected with medium list chamber 1, and the first swivel nut 6 is passed by frequency tuning screw 4.Frequency tuning structure is to utilize resonant cavity perturbation principle, the degree of depth entering in frequency tuning blind hole 2 by changing frequency tuning screw 4, reach the object of fine setting each medium list chamber 1 frequency, after the frequency trim in each medium list chamber 1, frequency tuning screw 4 can be threaded with the first nut 5, has reached the fastening object of frequency tuning screw 4.
With reference to figure 4, the coupling tuning structure of the present embodiment comprises the coupling tuning screw 7 being arranged in coupling tuning blind hole 3, one end of coupling tuning screw 7 is arranged in coupling tuning blind hole 3, between the circle wall of coupling tuning screw 7 and coupling tuning blind hole 3, be provided with gap, the other end end thread of coupling tuning screw 7 is connected in the second nut 8, between the second nut 8 and medium list chamber 1, be provided with the second swivel nut 9, the second swivel nut 9 is fixedly connected with medium list chamber 1, and the second swivel nut 9 is coupled tuning screw 7 and passes.Coupling tuning structure is to utilize resonant cavity perturbation principle, the degree of depth entering in coupling tuning blind hole 3 by changing coupling tuning screw 7, reach the object of coupling between fine setting adjacent media list chamber 1, after the coupling fine setting in each medium list chamber 1, coupling tuning screw 7 can be threaded with the second nut 8, has reached the fastening object of coupling tuning screw 7.
Frequency tuning screw 4 in such scheme and coupling tuning screw 7 all can select the screw rod of lighter weight to replace, and the cumulative volume of product also can correspondingly reduce like this.
The tuning structure of the present embodiment is nonessential structure, in the time that machining accuracy is higher, need not proportion tuning structure and coupling tuning structure carry out the adjusting of frequency and coupling amount.Now coupling can realize by the method that adopts the shadow shield of contiguous concatenation face, carries out the adjusting of coupling amount by the area size that changes contiguous concatenation face screen, and now, the volume of filter can be less, and it is easier to assemble, and cost is also lower.
The spliced dielectric filter that the present embodiment is designed, can only use as a filter, and it is only provided with a signal input port and a signal output port.
The spliced dielectric filter that the present embodiment is designed, can be used as a duplexer uses, each independent duplexer need arrange a TX emission filter and a RX receiving filter, wherein TX emission filter and RX receiving filter totally one ANT port, TX emission filter, its free transmission range of RX receiving filter are different, all by connector 10, signal accessed or fed out, also can signal be accessed or be fed out by microstrip line.
The spliced dielectric filter that the present embodiment is designed, also can be used as a multiplexer uses, each independent multiplexer comprises multiple filters, wherein multiple filters share an ANT port, but its free transmission range is different, each filter is all accessed signal or feed out by connector 10, also can signal be accessed or be fed out by microstrip line.
The spliced dielectric filter that the present embodiment is designed, it is any that it walks chamber form, is not limited to L-type, linear pattern etc.
The utility model utilizes air different from the dielectric constant of medium, be that air part is filled to dielectric material by the cavity of conventional metals cavity waveguide filter, be provided with electro-magnetic screen layer on the surface of dielectric material and carry out electromagnetic shielding, utilize this dielectric material to support simultaneously, the dielectric filter that makes to design has that volume is little, lightweight, environmental protection and the plurality of advantages such as cost is low, can meet preferably the development trends such as following filter, duplexer and multiplexer series products small size, light weight, low cost, high-performance and environmental protection.
The foregoing is only preferred embodiment of the present utility model, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a spliced dielectric filter, is characterized in that: this dielectric filter is spliced mutually by multiple medium lists chamber, and described medium list chamber is the solid cavity of making by dielectric material, and the surface of described solid cavity is provided with electro-magnetic screen layer; Each medium list chamber, along vertically all offering frequency tuning blind hole, is provided with frequency tuning structure in described frequency tuning blind hole; The Mosaic face in adjacent media list chamber is in contact with one another.
2. spliced dielectric filter according to claim 1, it is characterized in that: the Mosaic face in described adjacent media list chamber is provided with along vertical corresponding position the groove matching, after the described groove splicing matching, form a columnar coupling tuning blind hole, in described coupling tuning blind hole, be provided with coupling tuning structure.
3. spliced dielectric filter according to claim 1, is characterized in that: described medium list chamber is the solid cavity that ceramic medium material is made, and described electro-magnetic screen layer is metal level or metal alloy layer.
4. spliced dielectric filter according to claim 1, is characterized in that: described dielectric filter is mutually bonding or be welded by multiple medium lists chamber.
5. spliced dielectric filter according to claim 1, it is characterized in that: described frequency tuning structure comprises the frequency tuning screw being arranged in frequency tuning blind hole, one end of described frequency tuning screw is arranged in frequency tuning blind hole, between the circle wall of described frequency tuning screw and frequency tuning blind hole, be provided with gap, the other end end thread of described frequency tuning screw is connected in the first nut, between described the first nut and medium list chamber, be provided with the first swivel nut, described the first swivel nut is fixedly connected with medium list chamber, described the first swivel nut is passed by frequency tuning screw.
6. spliced dielectric filter according to claim 2, it is characterized in that: described coupling tuning structure comprises the coupling tuning screw being arranged in coupling tuning blind hole, one end of described coupling tuning screw is arranged in coupling tuning blind hole, between the circle wall of described coupling tuning screw and coupling tuning blind hole, be provided with gap, the other end end thread of described coupling tuning screw is connected in the second nut, between described the second nut and medium list chamber, be provided with the second swivel nut, described the second swivel nut is fixedly connected with medium list chamber, described the second swivel nut is coupled tuning screw and passes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283976.XU CN203967220U (en) | 2014-05-30 | 2014-05-30 | Spliced dielectric filter |
| PCT/CN2014/088839 WO2015090107A1 (en) | 2013-12-16 | 2014-10-17 | Dielectric waveguide filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283976.XU CN203967220U (en) | 2014-05-30 | 2014-05-30 | Spliced dielectric filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203967220U true CN203967220U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420283976.XU Expired - Fee Related CN203967220U (en) | 2013-12-16 | 2014-05-30 | Spliced dielectric filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203967220U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299558A (en) * | 2016-08-24 | 2017-01-04 | 张家港保税区灿勤科技有限公司 | high reliability dielectric waveguide filter |
| 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 |
| CN110112519A (en) * | 2019-06-14 | 2019-08-09 | 广东国华新材料科技股份有限公司 | High bandwidth dielectric waveguide filter |
| CN110828961A (en) * | 2019-11-26 | 2020-02-21 | 中国电子科技集团公司第五十四研究所 | Manufacturing method of LTCC embedded hollow rectangular waveguide structure |
| CN111384494A (en) * | 2018-12-29 | 2020-07-07 | 深圳市大富科技股份有限公司 | Dielectric resonator, dielectric filter and communication equipment |
-
2014
- 2014-05-30 CN CN201420283976.XU patent/CN203967220U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299558A (en) * | 2016-08-24 | 2017-01-04 | 张家港保税区灿勤科技有限公司 | high reliability dielectric waveguide filter |
| 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 |
| CN106450603B (en) * | 2016-08-24 | 2019-02-19 | 张家港保税区灿勤科技有限公司 | A kind of filter for Base Transmitter part |
| CN106299558B (en) * | 2016-08-24 | 2019-09-17 | 江苏灿勤科技股份有限公司 | High reliability dielectric waveguide filter |
| CN111384494A (en) * | 2018-12-29 | 2020-07-07 | 深圳市大富科技股份有限公司 | Dielectric resonator, dielectric filter and communication equipment |
| CN110112519A (en) * | 2019-06-14 | 2019-08-09 | 广东国华新材料科技股份有限公司 | High bandwidth dielectric waveguide filter |
| CN110828961A (en) * | 2019-11-26 | 2020-02-21 | 中国电子科技集团公司第五十四研究所 | Manufacturing method of LTCC embedded hollow rectangular waveguide structure |
| CN110828961B (en) * | 2019-11-26 | 2021-06-08 | 中国电子科技集团公司第五十四研究所 | Manufacturing method of LTCC embedded hollow rectangular waveguide structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |