CN208272090U - A kind of capacitive coupling and inductive coupled changeable filter - Google Patents
A kind of capacitive coupling and inductive coupled changeable filter Download PDFInfo
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- CN208272090U CN208272090U CN201820759837.8U CN201820759837U CN208272090U CN 208272090 U CN208272090 U CN 208272090U CN 201820759837 U CN201820759837 U CN 201820759837U CN 208272090 U CN208272090 U CN 208272090U
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- resonator
- adjustment piece
- resonant cavity
- capacitive coupling
- inductive coupled
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Abstract
The utility model discloses a kind of capacitive couplings and inductive coupled changeable filter, including shell and cover board, the shell is equipped with the inner cavity being made of two resonant cavities, described two resonant cavities are the first resonant cavity and the second resonant cavity, the first resonator is equipped in first resonant cavity, the second resonator is equipped in second resonant cavity, first resonator is coupled with the formation of the second resonator, the first side of first resonator is equipped with the first adjustment piece, and the second side of second resonator is equipped with second adjustment piece.The flexible switching of the filter capacity coupling and inductive coupling changes the registration of both ends of the surface by adjusting lower angle on piece of two neighboring chamber to reach required and couple bandwidth, when the transverse contact ratio of two pieces is big, capacitance is reinforced inductance and reduced.
Description
Technical field
The utility model relates to communication technique fields, are especially a kind of capacitive coupling and inductive coupled changeable filtering
Device.
Background technique
Microwave filter be widely used in microwave communication, radar navigation, electronic countermeasure, satellite communication, missile guidance,
It is indispensable important devices in microwave and millimeter-wave systems in the systems such as test instrumentation, the superiority and inferiority of performance is often direct
Influence the performance indicator of entire communication system.In the design of microwave band-pass filter, through frequently with the interdigitated structure of cavity.It
Have many advantages, such as that Insertion Loss is small, Out-of-band rejection degree is high, compact-sized, small in size.Its structural arrangement is more flexible, is suitable for
The design of 100MHZ- 40GHZ band-pass filter of frequency band, most commonly used in current mobile communication frequency range field is coaxial cavity,
In actual research and development of products and production, improved double coaxial UIR uniform impedance matching quarter-wave resonance structures have been used.
The advantage of this structure is: structure is general, is easy to develop transplanting, and suitable for movable communicates full frequency band;Adjustable range is big, to tolerance
It is of less demanding, it is very suitable for the low cost production of product;Power capacity is big, using input and output are electrically coupled, so product is consistent
Property and stability are fine.Conventional resonator is a circle, and spacing can not be carried out by installing between latter two circular resonator
Adjustment, to can not flexibly reach the coupling bandwidth of needs.
Summary of the invention
The technical problems to be solved in the utility model is to provide the flexible switching of a kind of capacitive coupling and inductive coupling, leads to
Lower angle on piece for adjusting two neighboring chamber is crossed, changes the registration of both ends of the surface to reach required and couple bandwidth, when two
When the transverse contact ratio of a piece is big, capacitance reinforces the capacitive coupling and inductive coupled changeable filtering that inductance reduces
Device.
The technical solution of the utility model is to provide a kind of capacitive coupling having following structure and inductive coupled changeable
Filter, including shell and cover board, the shell is equipped with the inner cavity being made of two resonant cavities, and described two resonant cavities are the
One resonant cavity and the second resonant cavity, first resonant cavity is interior to be equipped with the first resonator, is equipped with second in second resonant cavity
Resonator, first resonator and the second resonator are fixed by the inner bottom surface of connecting column and shell, and the cover board is located at shell
The opening of intracoelomic cavity simultaneously removable is connected and fixed；First resonator is coupled with the formation of the second resonator, and described first is humorous
Shaking, device is identical as the second resonator shape and mounting height is consistent, it is characterised in that: the first side of first resonator is set
There is the first adjustment piece, the second side of second resonator is equipped with second adjustment piece, the first adjustment piece and second adjustment
Piece is located at the same side, and the side of the first adjustment piece and the side face of second adjustment piece are opposite with face.
The first adjustment piece is connected as one by the first connection sheet and the first resonator, and the two of first connection sheet
Side is respectively symmetrically equipped with the first notch.
The second adjustment piece is connected as one by the second connection sheet and the second resonator, the two sides point of the second connection sheet
It is not symmetrically arranged with the second notch.
The top bolt of first resonator and the second resonator respectively with respective connecting column is connected and fixed.
The top surface of the bolted bolt is lower than the top surface of the first resonator and the second resonator.
After using the above structure, the utility model has the advantage that the flexible switching of capacitive coupling and inductive coupling, leads to
The registration for crossing the both ends of the surface between the first resonant cavity of adjustment and the first resonator and the second resonator in the second resonant cavity,
In the case where not changing the first resonator and the second resonator, by the upper inferior horn for changing the first adjustment piece and second adjustment piece
Degree changes the registration of both ends of the surface to reach required and couple bandwidth, when the end face of the first adjustment piece and second adjustment piece weight
When right big, capacitance is reinforced inductance and is reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a kind of capacitive coupling and inductive coupled changeable filter of the utility model.
Fig. 2 is that a kind of capacitive coupling of the utility model and the cover board Unclosing structure of inductive coupled changeable filter show
It is intended to.
Fig. 3 is that a kind of capacitive coupling of the utility model and inductive coupled changeable filter do not install bowing for cover board
Depending on structural schematic diagram.
Fig. 4 is the perspective view of the first resonator and the second resonator.
Fig. 5 is the right side view of the first resonator.
Fig. 6 is the first adjustment piece right side view after bending of the first resonator.
As shown in the figure, 1, shell, the 1.1, first resonant cavity, the 1.2, second resonant cavity, 2, cover board, the 3, first resonator,
3.1, the first adjustment piece, the 3.2, first connection sheet, the 4, second resonator, 4.1, second adjustment piece, the 4.2, second connection sheet, 5, company
Connect column.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As described in Fig. 1-6, a kind of capacitive coupling of the utility model and inductive coupled changeable filter, including shell
1 and cover board 2, the shell 1 is equipped with the inner cavity being made of two resonant cavities, described two 1.1 Hes of the first resonant cavity of resonant cavity position
Second resonant cavity 1.2, first resonant cavity 1.1 is interior to be equipped with the first resonator 3, is equipped with second in second resonant cavity 1.1
Resonator 4, first resonator 3 and the second resonator 4 are fixed by connecting column 5 and the inner bottom surface of shell 1, the cover board 2
It is located at the opening of 1 inner cavity of shell and removable is connected and fixed；First resonator 3 is coupled with the formation of the second resonator 4, institute
State that the first resonator 3 is identical as 4 shape of the second resonator and mounting height is consistent, the first side of first resonator 3 is set
There is the first adjustment piece 3.1, the second side of second resonator 4 is equipped with second adjustment piece 4.1, the first adjustment piece 3.1
It is located at the same side, the side of the first adjustment piece 3.1 and the side face of second adjustment piece 4.1 and face with second adjustment piece 4.1
Relatively.The flexible switching of capacitive coupling and inductive coupling, by adjusting in the first resonant cavity 1.1 and the second resonant cavity 1.2
The registration of both ends of the surface between one resonator 3 and the second resonator 4 is not changing the first resonator 3 and the second resonator 4
In the case of, by changing the upper lower angle of the first adjustment piece 3.1 and second adjustment piece 4.1, change the registration of both ends of the surface to reach
To required coupling bandwidth, when the transverse contact ratio of the first adjustment piece 3.1 and second adjustment piece 3.2 is big, capacitance is reinforced
Inductance reduces.
The first adjustment piece 3.1 is connected as one by the first connection sheet 3.2 with the first resonator 3, and described first connects
The two sides of contact pin 3.2 are respectively symmetrically equipped with the first notch, that is, formed one it is I-shaped, the length of the first adjustment piece 3.1
The shorter than length of the first resonator 3.When adjustment, by 3.2 bending of the first connection sheet, so that about 3.1 the first adjustment piece be made to select
The angle needed, final the first adjustment piece 3.1 and 3 shape of the first resonator are at a certain angle.
The second adjustment piece 4.1 is connected as one by the second connection sheet 4.2 with the second resonator 4, and described second connects
The two sides of contact pin 4.2 are respectively symmetrically equipped with the second notch.Namely formation one is I-shaped, the length of second adjustment piece 4.1
The shorter than length of the second resonator 4.When adjustment, by 4.2 bending of the second connection sheet, so that about 4.1 second adjustment piece be made to select
The angle needed, final second adjustment piece 4.1 and 4 shape of the second resonator are at a certain angle.
The shape of first notch is identical as the shape of the second notch.
The top bolt of first resonator 3 and the second resonator 4 respectively with respective connecting column 5 is connected and fixed.
The top surface of the bolted bolt is lower than the top surface of the first resonator 3 and the second resonator 4.
Claims (5)
1. a kind of capacitive coupling and inductive coupled changeable filter, including shell and cover board, the shell is equipped with by two
The inner cavity of resonant cavity composition, described two resonant cavities are the first resonant cavity and the second resonant cavity, are equipped in first resonant cavity
First resonator, second resonant cavity is interior to be equipped with the second resonator, and first resonator and the second resonator pass through connection
The inner bottom surface of column and shell is fixed, and the cover board is located at the opening of housing cavity and removable is connected and fixed；Described first is humorous
Vibration device is coupled with the formation of the second resonator, and first resonator is identical as the second resonator shape and mounting height is consistent,
Be characterized in that: the first side of first resonator is equipped with the first adjustment piece, and the second side of second resonator is equipped with
Second adjustment piece, the first adjustment piece and second adjustment piece are located at the same side, and the side of the first adjustment piece is adjusted with second
The side face of full wafer is opposite with face.
2. capacitive coupling according to claim 1 and inductive coupled changeable filter, it is characterised in that: described first
Trimmer is connected as one by the first connection sheet and the first resonator, and the two sides of first connection sheet are respectively symmetrically equipped with
One notch.
3. capacitive coupling according to claim 1 and inductive coupled changeable filter, it is characterised in that: described second
Trimmer is connected as one by the second connection sheet and the second resonator, and the two sides of second connection sheet are respectively symmetrically equipped with
Two notches.
4. capacitive coupling according to claim 1 and inductive coupled changeable filter, it is characterised in that: described first
The top bolt of resonator and the second resonator respectively with respective connecting column is connected and fixed.
5. capacitive coupling according to claim 4 and inductive coupled changeable filter, it is characterised in that: the bolt
The top surface of the bolt of connection is lower than the top surface of the first resonator and the second resonator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820759837.8U CN208272090U (en) | 2018-05-21 | 2018-05-21 | A kind of capacitive coupling and inductive coupled changeable filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820759837.8U CN208272090U (en) | 2018-05-21 | 2018-05-21 | A kind of capacitive coupling and inductive coupled changeable filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208272090U true CN208272090U (en) | 2018-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820759837.8U Active CN208272090U (en) | 2018-05-21 | 2018-05-21 | A kind of capacitive coupling and inductive coupled changeable filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208272090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444844A (en) * | 2019-07-12 | 2019-11-12 | 华南理工大学 | A kind of single channel and the restructural filter circuit of multichannel |
-
2018
- 2018-05-21 CN CN201820759837.8U patent/CN208272090U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444844A (en) * | 2019-07-12 | 2019-11-12 | 华南理工大学 | A kind of single channel and the restructural filter circuit of multichannel |
| CN110444844B (en) * | 2019-07-12 | 2024-04-05 | 华南理工大学 | Single-channel and multi-channel reconfigurable filter circuit |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 315100 floor 1-2, building 8, 818 Jinyuan Road, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: Ningbo Huaci Communication Technology Co.,Ltd. Address before: 2 / F, building 3, 818 Jinyuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 315100 Patentee before: NINGBO HUACI COMMUNICATION TECHNOLOGY Co.,Ltd. |