CN209374644U - A kind of filter and communication radio frequency device - Google Patents
A kind of filter and communication radio frequency device Download PDFInfo
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- CN209374644U CN209374644U CN201920139143.9U CN201920139143U CN209374644U CN 209374644 U CN209374644 U CN 209374644U CN 201920139143 U CN201920139143 U CN 201920139143U CN 209374644 U CN209374644 U CN 209374644U
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Abstract
This application discloses a kind of filter and communication radio frequency device, which includes signal input part, signal output end and successively the first metal resonators and at least two dielectric resonators of drop-over between signal input part and signal output end；It first metal resonators and it is provided with first between the first medium resonator of its drop-over couples window, so as to realize main coupling between the first metal resonators and first medium resonator；First metal resonators and be provided between the second medium resonator of its non-drop-over with first couple window it is adjacent second coupling window so that between the first metal resonators and second medium resonator realize orthogonal coupling.The filter of three cavity cascade structures can be made to realize main coupling and orthogonal coupling from the sheet metal without setting structure complexity, and then make that filter is easy for installation, easy mass production, and the quality factor of filter can be improved.
Description
Technical field
This application involves wave filter technology fields, more particularly, to a kind of filter and communication radio frequency device.
Background technique
With the development of modern communication technology, in order to meet high speed data transmission in mobile communication system and high power system capacity
The demand of aspect, simultaneously because the anxiety of frequency spectrum resource, causes requirement of the system to filter harsher, to reach this mesh
Mark, industry start to make filter as resonator using H mode medium, and H mode medium has high quality factor, high power
The advantages of capacity, so that filter has better electrical property.Since system is to the requirements at the higher level of filter, filter needs
Increase more cross-couplings in topological structure to improve performance.
Currently, the filter of three cavity cascade structures realizes that main coupling and orthogonal coupling are by pacifying between resonator
The sheet metal of assembling structure complexity is realized.But the quality factor of resonator can be reduced using sheet metal in filter cavity,
And sheet metal is installed to require strictly installation site and size, so that production is difficult.
Utility model content
The purpose of the application is to provide a kind of filter and communication radio frequency device, can make the filtering of three cavity cascade structures
Device makes that filter is easy for installation, easy mass production while realizing main coupling and orthogonal coupling, and can improve filter
Quality factor.
In order to solve the above-mentioned technical problem, first technical solution that the application uses is to provide a kind of filter, the filter
Wave device includes signal input part, signal output end and successively the first of drop-over between signal input part and signal output end
Metal resonators and at least two dielectric resonators；It first metal resonators and is set between the first medium resonator of its drop-over
It is equipped with the first coupling window, so as to realize main coupling between the first metal resonators and first medium resonator；First metal is humorous
Vibration device and be provided between the second medium resonator of its non-drop-over with first couple window it is adjacent second couple window, with
Make to realize orthogonal coupling between the first metal resonators and second medium resonator.
In order to solve the above-mentioned technical problem, second technical solution that the application uses is to provide a kind of communication radio frequency device
Part, the communication radio frequency device include that as above any filter, filter are used to receive set on the signal of communication radio frequency device
Power Generation Road part, selects signal.
The beneficial effect of the application is: be in contrast to the prior art, the filter of the application include signal input part,
Signal output end and successively the first metal resonators and at least two of drop-over between signal input part and signal output end
A dielectric resonator；It first metal resonators and it is provided with first between the first medium resonator of its drop-over couples window,
So as to realize main coupling between the first metal resonators and first medium resonator；First metal resonators and with its non-drop-over
Be provided between second medium resonator with first coupling window it is adjacent second coupling window so that the first metal resonators and
Orthogonal coupling is realized between second medium resonator.Three cavitys can be made to cascade from the sheet metal without setting structure complexity
The filter of structure realizes main coupling and orthogonal coupling, and then makes that filter is easy for installation, easy mass production, and can improve
The quality factor of filter.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of filter provided by the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment belongs to the range of the application protection.
Currently, the filter of three cavity cascade structures realizes that main coupling and orthogonal coupling are by pacifying between resonator
The sheet metal of assembling structure complexity is realized, but can reduce the quality factor of resonator using sheet metal in filter cavity,
And installation sheet metal requires strictly installation site and size, so that production is difficult.In order to solve the above technical problems, the application adopts
Technical solution be the first metal resonators and between the first medium resonator of its drop-over setting first couple window,
And the first metal resonators and between the second medium resonator of its non-drop-over setting second couple window.Hereinafter, in conjunction with
The application is described in detail in attached drawing.
In order to clearly illustrate above situation, it is illustrated so that filter includes four resonators as an example.Referring to Fig. 1,
Fig. 1 is a kind of structural schematic diagram of filter provided by the present application.As shown in Figure 1, filter 10 include signal input part 101,
Signal output end 102 and successively the first metal resonators of drop-over between signal input part 101 and signal output end 102
103, first medium resonator 104, second medium resonator 105, the second metal resonators 106.First metal resonance therein
Device 103, first medium resonator 104 and second medium resonator 105 constitute three cavity cascade structures；First metal resonators
103 couple with signal input part 101, and the second metal resonators 106 are coupled with signal output end 102.
It first metal resonators 103 and it is provided with first between the first medium resonator 104 of its drop-over couples window
107, the main coupling between the first metal resonators 103 and first medium resonator 104 is able to achieve by the first coupling window 107
It closes；It first metal resonators 103 and is provided between the second medium resonator 105 of its non-drop-over and couples window with first
107 the second adjacent coupling windows 108 are able to achieve the first metal resonators 103 and second by the second coupling window 108 and are situated between
Orthogonal coupling between matter resonator 105.In the present embodiment, drop-over refer to successively coupled according to preset order two it is humorous
Shake device, such as 104 drop-over of the first metal resonators 103 and first medium resonator, first medium resonator 104 and second medium
106 drop-over of 105 drop-over of resonator, second medium resonator 105 and the second metal resonators；Non- drop-over refers to not according to pre-
If two resonators that sequence successively couples, such as the first metal resonators 103 and the non-drop-over of second medium resonator 105.
Filter 10 in the present embodiment includes four resonators, and the filter 10 in other embodiments can also only include the
One metal resonators 103, first medium resonator 104 and second medium resonator 105 these three resonators.
It can be seen from the above, in the present embodiment i.e. by the first coupling window 107 being disposed adjacent and the second coupling window 108
The main coupling and orthogonal coupling that three cavity cascade structures can be achieved, are not required to the sheet metal of mounting structure complexity to install letter
Just, and the quality factor of filter 10 can be improved.
Further, it is provided between the first metal resonators 103 and first medium resonator 104 and couples window with first
107 spaced first auxiliary coupling windows 109, reinforce the first metal resonance by the first auxiliary coupling window 109
Main coupling between device 103 and first medium resonator 104；Between first metal resonators 103 and second medium resonator 105
It is provided with and couples the auxiliary coupling window 110 of window 108 spaced second with second, pass through the second auxiliary coupling window
110 couple to reinforce the orthogonal between the first metal resonators 103 and second medium resonator 105.First auxiliary therein
Coupling window 109 and the second auxiliary coupling window 110 are located at the first coupling window 107 being disposed adjacent and the second coupling window
108 two sides.
In other embodiments, the two auxiliary coupling windows 109 can not also be opened up in the case where not needing close coupling
With 110.
Filter 10 further includes partition wall 113 and cover board (not shown), and filter 10 separates to be formed by partition wall 113
Sub- chamber, resonator are vertically installed at corresponding sub intracavitary, the sub- chamber of cover board covering respectively.First coupling window 107 and first
Pass through the setting of the first partition wall 1131 interval, the second coupling window 108 and the second auxiliary coupling window between auxiliary coupling window 109
Pass through the setting of the second partition wall 1132 interval between 110.Wherein, the first partition wall 1131 does not contact humorous to adjust the first metal with cover board
The intensity of main coupling, the second partition wall 1132 are not contacted with cover board to adjust first between vibration device 103 and first medium resonator 104
The intensity that orthogonal couples between metal resonators 103 and second medium resonator 105.First auxiliary coupling window 109, second
The letter of auxiliary coupling window 110, the width of the first partition wall 1131 and the second partition wall 1132 and height transmission corresponding with filter 10
Number frequency is consistent, and signal frequency refers to the frequency of the electromagnetic wave transmitted in filter 10.
Preferably, coupling element 111 is respectively arranged at the first coupling window 107 and the second coupling window 108.Wherein,
Coupling element 111 at first coupling window 107 for adjust the first metal resonators 103 and first medium resonator 104 it
Between main coupling power；Coupling element 111 at second coupling window 108 is for adjusting the first metal resonators 103 and second
Cross-linked power between dielectric resonator 105.
In the present embodiment, first medium resonator 104 and second medium resonator 105 are H mode dielectric resonator,
H mode dielectric resonator is equipped with dielectric tuning disk 112, and dielectric tuning disk 112 is used to finely tune the frequency of H mode dielectric resonator
Rate.
First medium resonator 104 and second medium resonator 105 the two dielectric resonators are only included in the present embodiment,
It in other embodiments also may include greater number of dielectric resonator, it is such as 3,4 or more.
Between first metal resonators 103 and first medium resonator 104 and the first metal resonators 103 and second are situated between
It is electromagnetic field hybrid coupled between matter resonator 105, is magnetic between first medium resonator 104 and second medium resonator 105
Field coupling.Enter first coupling window 107 and second coupling of the electromagnetic wave of filter 10 by setting through signal input part 101
Window 108 is spread out of after realizing the transmission of energy of electromagnetic field in filter 10 through signal output end 102, and thus, it is possible to make filter 10
The electromagnetic wave signal transmitted in it is more effectively filtered.
Present invention also provides a kind of communication radio frequency device, communication radio frequency device includes any filter as above,
Filter is used for the transceiver circuit part set on communication radio frequency device, selects signal.Communication in the present embodiment
Radio-frequency devices are either simplex device, duplexer, splitter, combiner or tower amplifier.
The beneficial effect of the application is: be in contrast to the prior art, the filter of the application include signal input part,
Signal output end and successively the first metal resonators and at least two of drop-over between signal input part and signal output end
A dielectric resonator；It first metal resonators and it is provided with first between the first medium resonator of its drop-over couples window,
So as to realize main coupling between the first metal resonators and first medium resonator；First metal resonators and with its non-drop-over
Be provided between second medium resonator with first coupling window it is adjacent second coupling window so that the first metal resonators and
Orthogonal coupling is realized between second medium resonator.Three cavitys can be made to cascade from the sheet metal without setting structure complexity
The filter of structure realizes main coupling and orthogonal coupling, and then makes that filter is easy for installation, easy mass production, and can improve
The quality factor of filter.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (10)
1. a kind of filter, which is characterized in that the filter include signal input part, signal output end and be located at the letter
Successively the first metal resonators and at least two dielectric resonators of drop-over number between input terminal and the signal output end；
It first metal resonators and it is provided with first between the first medium resonator of its drop-over couples window, so that institute
It states and realizes main coupling between the first metal resonators and the first medium resonator；First metal resonators and non-with it
The second coupling window adjacent with the first coupling window is provided between the second medium resonator of drop-over, so that described the
Orthogonal coupling is realized between one metal resonators and the second medium resonator.
2. filter according to claim 1, which is characterized in that
It is provided between first metal resonators and the first medium resonator and couples window interval with described first and set
The the first auxiliary coupling window set, to reinforce the main coupling between first metal resonators and the first medium resonator
It closes；
It is provided between first metal resonators and the second medium resonator and couples window interval with described second and set
The the second auxiliary coupling window set, to reinforce the orthogonal between first metal resonators and the second medium resonator
Coupling.
3. filter according to claim 2, which is characterized in that
The filter further includes partition wall and cover board, and the filter separates to form sub- chamber by the partition wall, the resonator
It is intracavitary that it is vertically installed at the son respectively, the cover board covers the sub- chamber；
It is arranged between the first coupling window and the first auxiliary coupling window by the first partition wall interval, second coupling
It closes and is arranged between window and the second auxiliary coupling window by the second partition wall interval.
4. filter according to claim 3, which is characterized in that
First partition wall is not contacted with the cover board to adjust first metal resonators and the first medium resonator
Between main coupling intensity, second partition wall do not contact with the cover board to adjust first metal resonators and described
The intensity that orthogonal couples between second medium resonator.
5. filter according to claim 4, which is characterized in that the first auxiliary coupling window, second auxiliary
Couple the width of window, first partition wall and second partition wall and the signal frequency of height transmission corresponding with the filter
It is consistent.
6. filter according to claim 1, which is characterized in that the first coupling window and the second coupling window
Place is respectively arranged with coupling element, and the coupling element is strong and weak for adjusting coupling.
7. filter according to claim 1, which is characterized in that the filter includes first gold medal of successively drop-over
It is humorous to belong to resonator, the first medium resonator, the second medium resonator and the second metal resonators, first metal
The device that shakes is coupled with the signal input part, and second metal resonators and the signal output end couple.
8. filter according to claim 1, which is characterized in that the first medium resonator and the second medium are humorous
The device that shakes is H mode dielectric resonator, and the H mode dielectric resonator is equipped with dielectric tuning disk, and the dielectric tuning disk is used
In the frequency for finely tuning the H mode dielectric resonator.
9. a kind of communication radio frequency device, which is characterized in that the communication radio frequency device includes that claim 1~8 is any described
Filter, the filter are used for the transceiver circuit part set on the communication radio frequency device, select signal.
10. communication radio frequency device according to claim 9, which is characterized in that the communication radio frequency device is either simplex device, double
Work device, splitter, combiner or tower amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920139143.9U CN209374644U (en) | 2019-01-25 | 2019-01-25 | A kind of filter and communication radio frequency device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920139143.9U CN209374644U (en) | 2019-01-25 | 2019-01-25 | A kind of filter and communication radio frequency device |
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| CN209374644U true CN209374644U (en) | 2019-09-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509338A (en) * | 2020-06-03 | 2020-08-07 | 广东国华新材料科技股份有限公司 | Dielectric duplexer and small duplexer based on stepped impedance transformation tap |
| CN113394539A (en) * | 2021-06-10 | 2021-09-14 | 京信射频技术(广州)有限公司 | Resonant cavity structure, resonator, filter and communication device |
| CN113394536A (en) * | 2021-06-10 | 2021-09-14 | 京信射频技术(广州)有限公司 | Resonant cavity structure, resonator, filter and communication device |
| CN113497320A (en) * | 2020-04-08 | 2021-10-12 | 深圳市大富科技股份有限公司 | Filter and communication equipment |
-
2019
- 2019-01-25 CN CN201920139143.9U patent/CN209374644U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113497320A (en) * | 2020-04-08 | 2021-10-12 | 深圳市大富科技股份有限公司 | Filter and communication equipment |
| CN111509338A (en) * | 2020-06-03 | 2020-08-07 | 广东国华新材料科技股份有限公司 | Dielectric duplexer and small duplexer based on stepped impedance transformation tap |
| CN113394539A (en) * | 2021-06-10 | 2021-09-14 | 京信射频技术(广州)有限公司 | Resonant cavity structure, resonator, filter and communication device |
| CN113394536A (en) * | 2021-06-10 | 2021-09-14 | 京信射频技术(广州)有限公司 | Resonant cavity structure, resonator, filter and communication device |
| CN113394539B (en) * | 2021-06-10 | 2022-07-08 | 京信射频技术(广州)有限公司 | Resonant cavity structure, resonator, filter and communication device |
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Address after: 233000 building 4, national financial incubation Industrial Park, 17 Yannan Road, high tech Zone, Bengbu City, Anhui Province Patentee after: Dafu Technology (Anhui) Co., Ltd Address before: 518104, Guangdong, Shenzhen province Baoan District manhole street, oyster Road, manhole Industrial Company Third Industrial Zone, A1, A2, A3 101, A4 first, second, third layers Patentee before: SHENZHEN TATFOOK TECHNOLOGY Co.,Ltd. |