CN208272083U - A kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar - Google Patents
A kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar Download PDFInfo
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- CN208272083U CN208272083U CN201820684329.8U CN201820684329U CN208272083U CN 208272083 U CN208272083 U CN 208272083U CN 201820684329 U CN201820684329 U CN 201820684329U CN 208272083 U CN208272083 U CN 208272083U
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Abstract
The utility model discloses a kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar, including coupling iris and adjustable winged bar, setting is for separating two cavitys and finely tuning the coupling iris of coupling amount between two adjacent cavitys, adjustable winged bar for adjusting capacitive coupling amount between adjacent resonators is set between two adjacent resonant columns, adjustable winged bar is by being vertically connected with and the adjustable media units of size and silver layer unit are constituted, the orientation of silver layer unit and resonant column is formed by plane parallel setting, silver layer unit is circumscribed with the electric screwdriver of adjustment silver layer cellar area.The utility model is novel in design, structure is simple, convenience and high-efficiency, have the characteristics that debugging is convenient, adjustment is flexibly accurate, realizes the capacitive coupling in the multi-cavities cross-coupling such as three chambers, ensure that the superperformance of filter, save cost, securely and reliably, it greatly increases the production efficiency and application effect, Radio Frequency Engineer is allowed to have more selections to the design of filter.
Description
Technical field
The utility model relates to technical field of communication equipment, are based on capacitive cross coupling flying more specifically to one kind
The ceramic dielectric waveguide filter of bar.
Background technique
It is well known that existing winged bar material and form are mainly to be made of metal material, winged pole socket is cooperated to be mounted on chamber
Internal portion uses.This to be installed by machining, not only process is cumbersome, cannot be adjusted after installation, inconvenient debugging, needs
Metal cover board is dismantled, takes out and flies length or shape that bar changes winged bar using machining mode, is reloaded into cavity test,
And then to complete once to debug.However constantly machining and performance test operation seriously affect performance of filter repeatedly, and adjust
Examination is complicated, and production efficiency is low.
In addition, mostly use windowing mode to control in ceramic dielectric waveguide filter coupled modes and coupled between two chambers,
Coupling amount is controlled by controlling the size of window.But in practical applications, it frequently encounters when two windows open to the maximum also
Not the case where not being able to satisfy coupling demand.Also, in the case where the multi-cavities cross-coupling such as three chambers, perception easy to accomplish between two chambers
Coupling, but capacitive coupling is difficult to realize, and influences performance of filter and service efficiency.
Utility model content
In view of this, the purpose of this utility model is to provide one kind based on appearance to solve above-mentioned the deficiencies in the prior art
Sex-intergrade couples the ceramic dielectric waveguide filter of winged bar, and novel in design, structure is simple, convenience and high-efficiency, has and debugs convenient, tune
Whole flexible accurate feature, realizes the capacitive coupling in the multi-cavities cross-coupling such as three chambers, ensure that the superperformance of filter,
Cost is saved, securely and reliably, greatly increases the production efficiency and application effect, Radio Frequency Engineer is allowed to have the design of filter
More selections.
To achieve the above object, the technical scheme adopted by the utility model is
A kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar, including be made of media ceramic piece two
Two adjacent multiple cavities, the single interior resonant column being equipped with for adjusting filter resonance frequency of the cavity, further includes coupling
Diaphragm and adjustable winged bar are closed, setting is for separating two cavitys and finely tuning the coupled film of coupling amount between two adjacent cavitys
Piece, is arranged the adjustable winged bar for adjusting capacitive coupling amount between adjacent resonators between two adjacent resonant columns, it is described can
It adjusts and flies bar by being vertically connected with and the adjustable media units of size and silver layer unit are constituted, the row of the silver layer unit and resonant column
Column direction is formed by plane parallel setting, and the silver layer unit is circumscribed with the electric screwdriver of adjustment silver layer cellar area.
Further, the number of the cavity is at least 3.
Further, the media units are air layer.
Further, the shape of the adjustable winged bar is rectangular, round, size square combination, in size circular combination
Any one.
Further, the media units of the adjustable winged bar and silver layer unit are rectangular configuration.
Further, it is not laid with silver layer on the top surface of the silver layer unit contacted with media units, remaining five face is all provided with
There is the silver layer that size is adjusted by external electric screwdriver.
Further, the length of the adjustable winged bar is adjustable, by adjusting the length, width and height of adjustable winged bar come real
Now from being coupled inductively to capacitively coupled variation.
Further, what the coupling iris was adjustable is arranged between two adjacent cavitys and forms coupling window
Mouthful.
The beneficial effects of the utility model are:
A kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar, novel in design, structure is simple, facilitates height
Effect has the characteristics that debugging is convenient, adjustment is flexibly accurate, realizes the capacitive coupling in the multi-cavities cross-coupling such as three chambers, guarantee
The superperformance of filter saves cost, securely and reliably, greatly increases the production efficiency and application effect, allows radio frequency engineering
Teacher has more selections to the design of filter.Specifically have the advantage that
1, in the utility model, adjustable winged bar innovation is protruded, and setting is adjacent for adjusting between two adjacent resonant columns
The adjustable winged bar of capacitive coupling amount between resonator, adjustable winged bar is by being vertically connected with and the adjustable media units of size and silver layer
Unit is constituted, and is taken full advantage of other spaces of resonator to realize the coupling between adjacent resonators, is facilitated debugging resonator
Coupling effect；
2, media units are air layer, and the area of silver layer unit is adjusted by electric screwdriver, so by adjusting media units or
The size of silver layer unit realizes in the multi-cavities cross-coupling such as three chambers, to adjust the length and width higher size of adjustable winged bar from perception
It is coupled to capacitively coupled variation, the performance for being effectively guaranteed filter is stablized；And directly debug, it is easy to operate effective,
Do not need to disassemble and be machined, overcome constantly repeatedly machining and performance test operation cause debugging it is complicated,
Low efficiency, the defect for seriously affecting performance of filter；
3, setting is for separating two cavitys and finely tuning the coupling iris of coupling amount between two adjacent cavitys, coupling
Diaphragm it is adjustable be arranged between two adjacent cavitys and formed coupling window, coupling iris matches with window is coupled
It closes, has the function that finely tune it couples with two neighboring resonator by adjusting coupling iris.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of adjustable winged bar；
Fig. 3 is stiffness of coupling -- the relation schematic diagram of adjustable winged pole length；
Fig. 4 is stiffness of coupling -- the relation schematic diagram of adjustable winged bar width；
Fig. 5 is stiffness of coupling -- the relation schematic diagram of adjustable winged bar height；
Marked in the figure: 1, media ceramic piece, 2, adjustable winged bar, 3, coupling iris, 4, resonant column, 5, media units, 6, silver
Layer unit, 7, cavity.
Specific embodiment
Specific embodiment is given below, the technical solution of the utility model is made further clear, complete, in detail
It is bright.The present embodiment is the most preferred embodiment premised on technical solutions of the utility model, but the protection scope of the utility model is not
It is limited to following embodiments.
As shown in Figure 1, a kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar, including by media ceramic
The multiple cavities 7 adjacent two-by-two that piece 1 is constituted, the single cavity 7 is interior to be equipped with for adjusting the humorous of filter resonance frequency
Vibration column 4 can control the resonance frequency of filter by adjusting the height and diameter of resonant column 4.It further include 3 He of coupling iris
Adjustable winged bar 2, between two adjacent cavitys 7 setting for separating the coupling iris 3 of two cavitys 7 and fine tuning coupling amount,
Coupling iris 3 is matched with coupling window, reaches the work finely tuning it and coupling with two neighboring resonator by adjusting coupling iris 3
With, and then finely tune stiffness of coupling；It is arranged between two adjacent resonant columns 4 for adjusting capacitive coupling amount between adjacent resonators
Adjustable winged bar 2, as shown in Fig. 2, the adjustable winged bar 2 is by being vertically connected with and the adjustable media units 5 of size and silver layer list
Member 6 is constituted, and takes full advantage of other spaces of resonator to realize the coupling between adjacent resonators, facilitates debugging resonator
Coupling effect；The orientation of the silver layer unit 6 and resonant column 4 is formed by plane parallel setting, facilitates debugging, more preferably
Ground ensure that the performance of filter；The silver layer unit 6 is circumscribed with the electric screwdriver of adjustment 6 area of silver layer unit, and media units 5 are sky
Gas-bearing formation, i.e., adjustable winged bar 2 is that air flies bar, and then the size by adjusting media units 5 or silver layer unit 6, adjustable to adjust
The length and width higher size for flying bar 2, realizes in the multi-cavities cross-coupling such as three chambers, from capacitively coupled variation is coupled inductively to, has
It ensure that effect that the performance of filter is stablized；And directly debug, it is easy to operate effectively, do not need to disassemble progress it is mechanical plus
Work, overcome constantly to be machined repeatedly causes to debug complexity, low efficiency, seriously affects performance of filter with performance test operation
Defect.Certainly, in the prior art, fly bar and generally use metal material or silver-plated plastic material, such as copper, iron, aluminium metal
The organic materials such as material or polytetrafluoroethylene (PTFE), but effect be not achieved use air as carrier in the technical program can
The excellent results for flying bar 2 are adjusted, the adjustable winged innovation of bar 2 in the utility model protrudes, and it can be realized direct debugging, be not necessarily to disassembly,
It is simple and efficient, debugging effect is good, and capacitive coupling is strong, and performance of filter is good.
Further, the number of the cavity 7 is at least 3, and the utility model is suitable for solving the multi-cavities such as three chambers and intersects
In coupling, the problem of capacitive coupling is difficult to realize.
Further, the media units 5 are air layer, at low cost, facilitate debugging, debugging effect is good.I.e. adjustable winged bar 2
Fly bar for air, and then the size by adjusting media units 5 or silver layer unit 6, come rulers such as the length, width and height that adjust adjustable winged bar 2
It is very little, it realizes in the multi-cavities cross-coupling such as three chambers, from capacitively coupled variation is coupled inductively to, is effectively guaranteed filter
Performance is stablized；And directly debug, it is easy to operate effectively not need to disassemble and be machined, it overcomes constantly repeatedly
Machining and performance test operation cause to debug complexity, low efficiency, the defect for seriously affecting performance of filter.Certainly, existing
In technology, flies bar and generally use metal material or silver-plated plastic material, such as copper, iron, aluminium metal material or polytetrafluoroethyl-ne
The organic materials such as alkene, but the excellent results that the adjustable winged bar 2 of carrier is used air as in the technical program are not achieved in effect,
It is able to achieve direct debugging, without disassembly, is simple and efficient, debugging effect is good, and capacitive coupling is strong, and performance of filter is good.
Further, the shape of the adjustable winged bar 2 is rectangular, round, size square combination, in size circular combination
Any one, the shape and size size of adjustable winged bar 2 is adjustable.
Further, in the present embodiment, the media units 5 and silver layer unit 6 of the adjustable winged bar 2 are rectangular configuration.
Further, it is not laid with silver layer on the top surface of the silver layer unit 6 contacted with media units 5, remaining five face is equal
Equipped with the silver layer for adjusting size by external electric screwdriver；The adjustable silver layer size of external electric screwdriver, and then adjust
Stiffness of coupling.Further, when the size constancy of adjustable winged bar 2, external electric screwdriver can be used and individually adjust silver layer unit 6
Silver layer size, and then achieve the effect that finely tune stiffness of coupling；It, then can be with when the size of adjustable winged bar 2 needs to change
It is constant by keeping the constant size to adjust media units 5 of 6 size of silver layer unit, or by holding 5 size of media units
To adjust the size of silver layer unit 6, and then reach three chambers etc. in multi-cavities cross-coupling from being coupled inductively to capacitively coupled variation；
The strong flexibility of debugging can independently and effectively realize coupling amount and capacitive coupling between adjacent resonators.
Further, the length of the adjustable winged bar 2 is adjustable, by adjust the length, width and height of adjustable winged bar 2 come
It realizes from being coupled inductively to capacitively coupled variation.First is that medium list can be adjusted by keeping 6 size of silver layer unit constant
The size of member 5 realizes, second is that the size of silver layer unit 6 can be adjusted by keeping media units 5 sizes constant to realize,
And then reach in the multi-cavities cross-coupling such as three chambers from being coupled inductively to capacitively coupled variation.
Further, in the present embodiment, as shown in figure 3, be stiffness of coupling -- the relation schematic diagram of adjustable winged pole length,
In, abscissa represents the length of adjustable winged bar 2, and ordinate represents stiffness of coupling, wherein the positive value of ordinate represents perceptual coupling
It closes, negative value represents capacitive coupling, it can be deduced that: the length of adjustable winged bar 2 is bigger, and capacitive coupling intensity is stronger, that is, passes through adjusting
The length of adjustable winged bar 2 is realized from being coupled inductively to capacitively coupled variation.It is specific as shown in table 1:
As shown in figure 4, being stiffness of coupling -- the relation schematic diagram of adjustable winged bar width；Wherein, abscissa represents adjustable fly
The width of bar 2, ordinate represent stiffness of coupling, wherein and the positive value of ordinate represents inductive coupled, and negative value represents capacitive coupling,
It follows that the width of adjustable winged bar 2 is bigger, capacitive coupling intensity is stronger, i.e., by adjusting the width of adjustable winged bar 2, realizes
From being coupled inductively to capacitively coupled variation.It is specific as shown in table 2:
As shown in figure 5, being stiffness of coupling -- the relation schematic diagram of adjustable winged bar height；Wherein, abscissa represents adjustable fly
The height of bar 2, ordinate represent stiffness of coupling, wherein and the positive value of ordinate represents inductive coupled, and negative value represents capacitive coupling,
It follows that the width of adjustable winged bar 2 is bigger, capacitive coupling intensity is stronger, i.e., by adjusting the width of adjustable winged bar 2, realizes
From being coupled inductively to capacitively coupled variation.It is specific as shown in table 3:
Further, what the coupling iris 3 was adjustable is arranged between two adjacent cavitys 7 and forms coupling window
Mouthful.Coupling iris 3 is matched with coupling window, reaches fine tuning by adjusting coupling iris 3 it is coupled with two neighboring resonator
Effect.
In conclusion a kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar of the utility model, design
Novelty, structure is simple, convenience and high-efficiency, has the characteristics that debugging is convenient, adjustment is flexibly accurate, realizes the multi-cavities such as three chambers and intersect coupling
Capacitive coupling in conjunction, ensure that the superperformance of filter, save cost, securely and reliably, greatly increase the production efficiency and
Application effect allows Radio Frequency Engineer to have more selections to the design of filter.
The advantages of main feature, basic principle and the utility model of the utility model has been shown and described above.This
Industry technology personnel are described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
There can be various changes and modifications according to the actual situation, these changes and improvements both fall within the scope of the claimed invention
It is interior.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (8)
1. a kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar, including what is be made of media ceramic piece (1)
Adjacent multiple cavities (7) two-by-two, the single interior resonant column being equipped with for adjusting filter resonance frequency of the cavity (7)
(4), it is characterised in that: further include coupling iris (3) and adjustable winged bar (2), setting is for dividing between two adjacent cavitys (7)
It is arranged between two cavitys (7) and the coupling iris (3) of fine tuning coupling amount, two adjacent resonant columns (4) for adjusting
The adjustable winged bar (2) of capacitive coupling amount between adjacent resonators, the adjustable winged bar (2) is by being vertically connected with and size is adjustable
Media units (5) and silver layer unit (6) are constituted, and the orientation of the silver layer unit (6) and resonant column (4) is formed by plane
Parallel setting, the silver layer unit (6) are circumscribed with the electric screwdriver of adjustment silver layer unit (6) area.
2. a kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar according to claim 1, feature
Be: the number of the cavity (7) is at least 3.
3. a kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar according to claim 1, feature
Be: the media units (5) are air layer.
4. a kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar according to claim 1, feature
Be: the shape of the adjustable winged bar (2) is rectangular, round, size square combination, any one in size circular combination.
5. a kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar according to claim 4, feature
Be: the media units (5) and silver layer unit (6) of the adjustable winged bar (2) are rectangular configuration.
6. a kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar according to claim 5, feature
It is: is not laid with silver layer on the top surface of the silver layer unit (6) contacted with media units (5), remaining five face, which is equipped with, is passed through
External electric screwdriver adjusts the silver layer of size.
7. a kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar according to claim 5, feature
Be: the length of the adjustable winged bar (2) is adjustable, is realized by adjusting the length, width and height of adjustable winged bar (2) from sense
Property is coupled to capacitively coupled variation.
8. a kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar according to claim 1, feature
Be: the coupling iris (3) is adjustable to be arranged between two adjacent cavitys (7) and forms coupling window.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820684329.8U CN208272083U (en) | 2018-05-09 | 2018-05-09 | A kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820684329.8U CN208272083U (en) | 2018-05-09 | 2018-05-09 | A kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550964A (en) * | 2018-05-09 | 2018-09-18 | 广东通宇通讯股份有限公司 | A kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar |
| CN109786907A (en) * | 2019-02-18 | 2019-05-21 | 摩比科技（深圳）有限公司 | The capacitive coupling structure and cavity body filter of cavity body filter |
| CN110165345A (en) * | 2019-05-31 | 2019-08-23 | 广东国华新材料科技股份有限公司 | A kind of capacitive coupling structure and preparation method thereof |
-
2018
- 2018-05-09 CN CN201820684329.8U patent/CN208272083U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550964A (en) * | 2018-05-09 | 2018-09-18 | 广东通宇通讯股份有限公司 | A kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar |
| CN108550964B (en) * | 2018-05-09 | 2024-04-16 | 广东通宇通讯股份有限公司 | Ceramic dielectric waveguide filter based on capacitive cross coupling flying rod |
| CN109786907A (en) * | 2019-02-18 | 2019-05-21 | 摩比科技（深圳）有限公司 | The capacitive coupling structure and cavity body filter of cavity body filter |
| CN109786907B (en) * | 2019-02-18 | 2020-05-19 | 摩比科技（深圳）有限公司 | Capacitive coupling structure of cavity filter and cavity filter |
| CN110165345A (en) * | 2019-05-31 | 2019-08-23 | 广东国华新材料科技股份有限公司 | A kind of capacitive coupling structure and preparation method thereof |
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