CN209418743U - Communicate the capacitive coupling interaction structure of headend equipment device - Google Patents
Communicate the capacitive coupling interaction structure of headend equipment device Download PDFInfo
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- CN209418743U CN209418743U CN201920128105.3U CN201920128105U CN209418743U CN 209418743 U CN209418743 U CN 209418743U CN 201920128105 U CN201920128105 U CN 201920128105U CN 209418743 U CN209418743 U CN 209418743U
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Abstract
A kind of capacitive coupling interaction structure communicating headend equipment device.The second end face on resonator top is set flat disk by the utility model, realizes the adjusting to the coupling amount of metal medium coupling piece using magnetic distribution intensive in the plane.Since magnetic distribution is intensive on couple planar, the utility model can realize close coupling to greatest extent.On this basis, by the coupling area size or the distance between itself and resonator that adjust metal medium coupling piece, the utility model can realize capacitive cross coupling required by communication system index for comb line filter, duplexer, combiner in biggish adjustable range, without the device architecture different for different coupling parameter independent designs.
Description
Technical field
The utility model relates to microwave device fields, intersect in particular to a kind of capacitive for communicating headend equipment device
Coupled structure.
Background technique
Duplexer, combiner, filter etc. are widely used in the headend equipment of the communications field, and these communication headend equipments
The quality of the parameter index of device will have a direct impact on the communication quality of entire communication system.In order to meet some technical specifications
Such as: capacitive cross coupling, tap coupler, volume, weight, technical indicator can use coupling in the design process of product component
Component is coupled with the resonant rod mobile jib in component.But coupling unit is with resonant rod mobile jib when coupling, due to the structure of component,
The mismachining tolerance of the limitations such as size and component, for some demanding products of parameter index, the sensitivity of coupling surface
It is required that etc. technical indicators cannot access coupling amount actually required.Its finger for being difficult to meet high standard product of existing coupled structure
Mark requires.Performance is poor in existing modular construction use process, and consistency is poor, influences the communication quality of entire communication system.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of communication headend equipment devices for being capable of providing big coupling amount
The capacitive coupling interaction structure of part.
Firstly, to achieve the above object, proposing that a kind of capacitive coupling interaction structure for communicating headend equipment device is used to comb
Shape line filter, duplexer, combiner comprising: at least three resonator, the first end face of each resonator respectively with gold
Belong to resonance step connection, the second end face of the resonator be set perpendicularly to the resonator axis to flat disk；Wherein
2 resonators be also respectively connected input and output coupling sheet metal be used for the capacitive coupling interaction structure FD feed or
It is exported for signal；Metal medium coupling piece, including coupling part and interconnecting piece, the coupling part include at least two, the coupling part
It is connect between the metal medium coupling piece and the second end face without electricity with the second end face of the resonator close to setting respectively
Touching, the interconnecting piece connect the coupling part.
Optionally, in the capacitive coupling interaction structure of above-mentioned communication headend equipment device, the metal medium coupling piece
Be provided with insulative separator material between the second end face of the resonator, by the insulative separator material keep between the two without
Electrical contact.
Optionally, in the capacitive coupling interaction structure of above-mentioned communication headend equipment device, the insulative separator material packet
It includes: nonmetallic support chip and nonmetallic fixing screws.The nonmetallic support chip is at least set to the metal medium coupling
Between the coupling part of piece and the second end face of the resonator, the thickness of the nonmetallic support chip intersects coupling according to the capacitive
Coupling amount needed for closing structure determines.The coupling part of the metal medium coupling piece is anchored on institute by the nonmetallic fixing screws
State the second end face of resonator.
Optionally, in the capacitive coupling interaction structure of above-mentioned communication headend equipment device, the profile of the coupling part with
The profile of the second end face of the resonator matches, and the profile of the second end face may be configured as round, ellipse or appoint
The polygon of meaning.
Optionally, in the capacitive coupling interaction structure of above-mentioned communication headend equipment device, the second end of the resonator
Face is discoid for the axial direction perpendicular to the resonator, and the diameter of the second end face is greater than the diameter of the first end face.
The coupling part is the ring sector or ring structure concentric with the second end face of the resonator.
Optionally, in the capacitive coupling interaction structure of above-mentioned communication headend equipment device, the axial direction of the resonator is also
Be provided with the adjusting rod for protruding from the second end face, the length of the adjusting rod for adjust the two neighboring resonator it
Between coupling amount.
Optionally, in the capacitive coupling interaction structure of above-mentioned communication headend equipment device, the metal medium coupling piece
Two coupling parts between be separated at least one described resonator, the interconnecting piece of the metal medium coupling piece is provided with arc
The shape of the second end face of the resonator at shape, the arc and interval matches.
Optionally, in the capacitive coupling interaction structure of above-mentioned communication headend equipment device, the structure further include cavity and
Cover board.Sealed between the cavity and cover board, between the cavity and cover board sealing be formed by cavity be provided with it is above-mentioned humorous
Shake device, input and output coupling sheet metal, metal resonance step, insulative separator material, metal medium coupling piece, nonmetallic fixed spiral shell
At least part of nail and the adjusting rod.
Optionally, in the capacitive coupling interaction structure of above-mentioned communication headend equipment device, described in the adjusting rod stretching
One end of cavity is also connected with adjusting rod fixture nut, for the adjusting rod to be fixed on to the extension position of needs.
Optionally, in the capacitive coupling interaction structure of above-mentioned communication headend equipment device, the metal resonance step it
Between be also bonded by metal fixing screws with fixing piece, the fixing piece is used to the metal resonance step being fixed on institute
It states in cavity；The input and output coupling sheet metal is also connected with connector, the connector far from one end of the resonator
It is fixed by connector fixing screws and the outer wall of the cavity, for input and output coupling sheet metal FD feed or confession
Signal output.
Beneficial effect
The second end face on resonator top is set flat disk by the utility model, utilizes electromagnetism intensive in the plane
The adjusting to the coupling amount of metal medium coupling piece is realized in field distribution.Since magnetic distribution is intensive on couple planar, this
Utility model can realize close coupling to greatest extent.On this basis, big by adjusting the coupling area of metal medium coupling piece
Small, the utility model can realize that communication system refers to for comb line filter, duplexer, combiner in biggish adjustable range
The required capacitive cross coupling of mark, without the device architecture different for different coupling parameter independent designs.
In addition, the utility model can also be by adjusting the nonmetallic branch being set between metal medium coupling piece and resonator
The thickness of blade reduces the distance between metal medium coupling piece and resonator top, more neatly by reducing its thickness
Increase the coupling amount of capacitive cross coupling.
The utility model is also convenient to finely tune the length for protruding from the adjusting rod of the second end face by tool, adjusts
Coupling amount between the two neighboring resonator.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, and with this reality
Together with novel embodiment, for explaining the utility model, limitations of the present invention are not constituted.In the accompanying drawings:
Fig. 1 is the overall structure diagram of the communication headend equipment device of the utility model；
Fig. 2 is showing for the signal path structure of capacitive cross coupling in the communication headend equipment device of the utility model
It is intended to.
In figure, 1 indicates cavity；2 indicate cover board；3 indicate cover screw；4 indicate resonator；5 indicate the fixed spiral shell of resonator
Nail；6 indicate that input and output couple sheet metal；7 indicate metal resonance step；8 indicate metal fixing screws；9 indicate that connector is solid
Determine screw；10 indicate connector；11 indicate insulative separator material；12 indicate metal medium coupling piece；13 indicate nonmetallic fixation
Screw；14 indicate adjusting rod fixture nut；15 indicate adjusting rod.
Specific embodiment
To keep the purpose and technical solution of the utility model embodiment clearer, implement below in conjunction with the utility model
The attached drawing of example, is clearly and completely described the technical solution of the utility model embodiment.Obviously, described embodiment
It is a part of the embodiment of the utility model, instead of all the embodiments.Based on described the embodiments of the present invention,
Those of ordinary skill in the art's every other embodiment obtained under the premise of being not necessarily to creative work belongs to practical
Novel protected range.
Those skilled in the art of the present technique are appreciated that unless otherwise defined all terms used herein include technology art
Language and scientific term have meaning identical with the general understanding of those of ordinary skill in the utility model fields.Also answer
It should be appreciated that those terms such as defined in the general dictionary should be understood that have in the context of the prior art
The consistent meaning of meaning, and unless defined as here, it will not be explained in an idealized or overly formal meaning.
The meaning of "and/or" described in the utility model refers to the case where respective individualism or both exists simultaneously
In being included in.
The meaning of " inside and outside " described in the utility model is referred to relative to device itself, inside pointing device
Direction be it is interior, otherwise is outer；Rather than the specific restriction to the device and equipment of the utility model.
The meaning of " connection " described in the utility model can be to be directly connected to be also possible between component between component
Pass through being indirectly connected with for other components.
Fig. 1 is according to a kind of communication headend equipment device of the utility model comprising comb line filter, duplexer,
Combiner.With reference to Fig. 2, it is provided with capacitive coupling interaction structure in above-mentioned communication headend equipment device, the capacitive cross coupling knot
Structure includes:
At least three resonator 4, it is humorous with metal that the first end face of each resonator 4 passes through resonator fixing screws 5 respectively
The step 7 that shakes connects, and the second end face of the resonator 4 is set as discoid or other geometries, for example, oval table
Face, polygon surface etc., the second end face of the resonator 4 may be configured as being wider than the first end face of resonator 4 to increase it
Coupling amount；2 resonators 4 therein are also respectively connected input and output coupling sheet metal 6 and are used for the capacitive cross coupling
Structure FD feed is exported for signal；
Metal medium coupling piece 12, including coupling part and interconnecting piece, the coupling part include at least two, the coupling part
Respectively with the second end face of the resonator 4 close to setting, nothing between the metal medium coupling piece 12 and the second end face
Electrical contact, the interconnecting piece connect the coupling part.
For the distribution of electromagnetic field in device, resonator top electromagnetic field compares comparatively dense, that is the density of this part
Height realizes cross-coupling in the high place of density, and coupling amount can significantly increase, thus is easy to implement close coupling or to coupling
The adjusting of resultant progress wider range.
Based on the structure of above-mentioned this top coupling, the utility model, can also be into one under a kind of concrete implementation mode
Step is provided with insulative separator material 11 between metal medium coupling piece 12 and the second end face of the resonator 4, by described exhausted
Edge isolated material 11 is kept between the two without electrical contact.Specifically, the insulative separator material 11 may include nonmetallic support
Piece and nonmetallic fixing screws 13: the nonmetallic support chip is at least set to the coupling part of the metal medium coupling piece 12
Between the second end face of the resonator 4, the thickness of the nonmetallic support chip is according to the capacitive coupling interaction structure institute
The coupling amount needed determines；The coupling part of the metal medium coupling piece 12 is anchored on described humorous by the nonmetallic fixing screws 13
The second end face of vibration device 4.
To further increase coupling, the second end face of above-mentioned resonator 4 is the axial circle perpendicular to the resonator 4
Plate-like, the diameter of the second end face may be configured as the diameter greater than the first end face to further increase coupling amount；It is described
Coupling part is the ring sector or ring structure concentric with the second end face of the resonator 4.The discoid specific size with
Thickness.The ring sector or annular thickness, radius and angular range with specific reference to parameter needed for device through signal simulation and
It determines.Geometry based on signal simulation can determine accordingly through the above scheme.For cross-linked requirement, due to
What cross-coupling referred to is not the coupling between two adjacent chambers, and the purpose of cross-coupled manner is to realize an inhibition zero point, is increased
Out-of-band rejection is added to decay, therefore, the metal medium coupling piece 12 of the utility model needs to skip the adjusting screw rod of a chamber frequency,
That is, being separated at least one described resonator 4, the gold between two coupling parts of above-mentioned metal medium coupling piece 12
The interconnecting piece for belonging to medium couples piece 12 is provided with arc, the shape of the second end face of the resonator 4 at the arc and interval
Match.
For this structure for needing to be spaced resonator, in the interconnecting piece of the metal medium coupling piece 12 of the utility model
Portion part may also be configured to arc, and main purpose is the frequency adjusting screw rod part in order to bypass intermediate resonator, to coupling
It does not work.The circular arc type structure at its both ends mainly passes through the overlapping area of the disk above the size i.e. resonator of circular arc
Size adjusts coupling size.It is not in electrical contact always between 12 resonator 4 of metal medium coupling piece, connects resonator
4 and metal medium coupling piece 12 screw be insulation plastic screw.
The factor that another in the utility model influences coupling size is between resonator 4 and metal medium coupling piece 12
Spacing, apart from it is smaller coupling it is bigger.The characteristics of such structure, is to be placed on the top coupling of resonator.Relative in resonance
The scheme that below device and side is coupled, the application are coupled in top surface, and coupling amount is maximum, while can be situated between by increasing metal
The overlapping area of 12 resonator 4 of matter coupling piece couples to further increase, in principle for the two of metal medium coupling piece 12
Side arcuate structure is completely coincident with the resonance plate of resonator if directly becoming circle, and coupling amount can achieve maximum simultaneously
Also needing the spacing factor for considering resonator 4 and metal medium coupling piece 12 to summarize is exactly first is that top coupling realizes coupling most
Bigization.In addition, the mode of top coupling can guarantee coupling area great circle disc area, coupling can be further increased.Meanwhile
The distance that resonator 4 and metal medium coupling piece 12 can also be adjusted in specific implementation, can also be further apart from smaller coupling
It increases.That is, resonator 4 is to provide a cross-linked platform, it is what no effect in principle, but it is humorous
Shake device 4 disc area it is bigger, metal medium coupling piece 12 can be supplied to and go the area being overlapped bigger, corresponding coupling also have after
The continuous space increased.The circular end face of resonator 4 and the arc intersection of metal medium coupling piece 12 are more, couple stronger.
However, metal medium coupling piece 12 is added and carries out coupling since the second end face electromagnetic field density of the resonator 4 is big
After conjunction, more significant impact can be carried out to the frequency band of corresponding resonator 4.In view of close coupling is right to 4 resonant cavity of resonator institute
The reduction for the resonance frequency answered acts on, and resonance frequency may be lower than the frequency that it is needed under close coupling effect, this is practical new
Type can be adjusted by following mode, so that it reaches device index request:
The utility model further can protrude from the adjusting rod of the second end face in the axial setting of the resonator 4
15, the adjusting rod 15 adjusts its length by tool and adjusts normal coupling amount between the two neighboring resonator 4.
One end that the adjusting rod 15 stretches out the cavity 1 is also connected with adjusting rod fixture nut 14, for fixing the adjusting rod 15
On the position corresponding to the length that it is needed.
The utility model can be by the adjusting to top coupled structure geomery and spacing, wide as a result,
Stiffness of coupling under realize adjusting to device cross-coupling amount, guarantee device communication performance.Wherein the coupling unit passes through
Nonmetallic screw is fastened on the communication headend equipment resonant rod；Between the coupling unit and communication headend equipment resonator
It is provided with nonmetal medium and is dielectrically separated from component, for preventing coupling unit and communication headend equipment resonator from directly contacting.
With reference to Fig. 1, the utility model can also be by the structure setting of above-mentioned capacitive cross coupling in sealing in cavity
Dress.Encapsulation is realized by the sealing of cover screw 3 in-between especially by cavity 1, cover board 2 and connection.The cavity 1 and cover board
Between 2 sealing be formed by cavity be provided with above-mentioned resonator 4, input and output coupling sheet metal 6, metal resonance step 7, absolutely
At least part of edge isolated material 11, metal medium coupling piece 12, nonmetallic fixing screws 13 and the adjusting rod 15.For
Guarantee that above structure stable connection is indeformable to influence process of signal transmission, in the utility model, the metal resonance step 7 it
Between can be also bonded by metal fixing screws 8 with fixing piece, the fixing piece is used for the metal resonance step 7 is fixed
In in the cavity 1.The input and output coupling sheet metal 6 is also connected with connector 10, institute far from one end of the resonator 4
It states connector 10 to fix by connector fixing screws 9 and the outer wall of the cavity 1, couples sheet metal for the input and output
6 FD feeds are exported for signal.
The above is only the embodiments of the present invention, and the description thereof is more specific and detailed, but can not therefore understand
For a limitation on the scope of the patent of the present invention.It should be pointed out that for those of ordinary skill in the art, not taking off
Under the premise of from the utility model design, various modifications and improvements can be made, these belong to the protection of the utility model
Range.
Claims (10)
1. a kind of capacitive coupling interaction structure for communicating headend equipment device, is used for comb line filter, duplexer, combiner,
It is characterised by comprising:
The first end face of at least three resonator (4), each resonator (4) is connect with metal resonance step (7) respectively, described
The second end face of resonator (4) is set perpendicularly to the flat disk of the resonator (4) axial direction；2 resonators (4) therein
Be also respectively connected input and output coupling sheet metal (6) be used for it is defeated to the capacitive coupling interaction structure FD feed or for signal
Out；
Metal medium coupling piece (12), including coupling part and interconnecting piece, the coupling part include at least two, the coupling unit
Not with the second end face of the resonator (4) close to setting, between the metal medium coupling piece (12) and the second end face
Without electrical contact, the interconnecting piece connects the coupling part.
2. the capacitive coupling interaction structure of communication headend equipment device as described in claim 1, which is characterized in that the metal
Insulative separator material (11) are provided between medium couples piece (12) and the second end face of the resonator (4), by the insulation
Isolated material (11) is kept between the two without electrical contact.
3. the capacitive coupling interaction structure of communication headend equipment device as claimed in claim 2, which is characterized in that the insulation
Isolated material (11) includes: nonmetallic support chip and nonmetallic fixing screws (13),
The nonmetallic support chip is at least set to coupling part and the resonator (4) of the metal medium coupling piece (12)
Between second end face, thickness coupling amount according to needed for the capacitive coupling interaction structure of the nonmetallic support chip is determined；
The coupling part of the metal medium coupling piece (12) is anchored on the resonator (4) by the nonmetallic fixing screws (13)
Second end face.
4. the capacitive coupling interaction structure of communication headend equipment device as claimed in claim 3, which is characterized in that the coupling
The profile in portion and the profile of the second end face of the resonator (4) match, and the profile of the second end face may be selected to be set as
Round, ellipse or arbitrary polygon.
5. the capacitive coupling interaction structure of communication headend equipment device as claimed in claim 4, which is characterized in that the resonance
The second end face of device (4) is discoid for the axial direction perpendicular to the resonator (4), and the diameter of the second end face is greater than described
The diameter of first end face；
The coupling part is the ring sector or ring structure concentric with the second end face of the resonator (4).
6. the capacitive coupling interaction structure of communication headend equipment device as claimed in claim 3, which is characterized in that the resonance
The axial direction of device (4) is additionally provided with the adjusting rod (15) for protruding from the second end face, and the length of the adjusting rod (15) is for adjusting
Save the coupling amount between the two neighboring resonator (4).
7. the capacitive coupling interaction structure of communication headend equipment device as claimed in claim 6, which is characterized in that the metal
At least one described resonator (4), the metal medium coupling piece are separated between two coupling parts of medium couples piece (12)
(12) interconnecting piece is provided with arc, and the shape of the second end face of the resonator (4) at the arc and interval matches.
8. the capacitive coupling interaction structure of communication headend equipment device as claimed in claim 6, which is characterized in that further include chamber
Body (1) and cover board (2)；
It is sealed between the cavity (1) and cover board (2), sealing, which is formed by cavity, between the cavity (1) and cover board (2) sets
It is equipped with above-mentioned resonator (4), input and output coupling sheet metal (6), metal resonance step (7), insulative separator material (11), metal
At least part of medium couples piece (12), nonmetallic fixing screws (13) and the adjusting rod (15).
9. the capacitive coupling interaction structure of communication headend equipment device as claimed in claim 8, which is characterized in that the adjusting
One end that bar (15) stretches out the cavity (1) is also connected with adjusting rod fixture nut (14), for the adjusting rod (15) are solid
It is scheduled on the extension position of needs.
10. the capacitive coupling interaction structure of communication headend equipment device as claimed in claim 8, which is characterized in that the gold
Belong to and being also bonded by metal fixing screws (8) with fixing piece between resonance step (7), the fixing piece is used for the gold
Belong to resonance step (7) to be fixed in the cavity (1)；
Input and output coupling sheet metal (6) is also connected with connector (10), the company far from the one end of the resonator (4)
It connects device (10) to fix by connector fixing screws (9) and the outer wall of the cavity (1), couples metal for the input and output
Piece (6) FD feed is exported for signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920128105.3U CN209418743U (en) | 2019-01-25 | 2019-01-25 | Communicate the capacitive coupling interaction structure of headend equipment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920128105.3U CN209418743U (en) | 2019-01-25 | 2019-01-25 | Communicate the capacitive coupling interaction structure of headend equipment device |
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| Publication Number | Publication Date |
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| CN209418743U true CN209418743U (en) | 2019-09-20 |
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| CN201920128105.3U Active CN209418743U (en) | 2019-01-25 | 2019-01-25 | Communicate the capacitive coupling interaction structure of headend equipment device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687079A (en) * | 2019-01-25 | 2019-04-26 | 江苏贝孚德通讯科技股份有限公司 | Communicate the capacitive coupling interaction structure of headend equipment device |
| CN115241618A (en) * | 2022-07-29 | 2022-10-25 | 西安空间无线电技术研究所 | Frequency-dependent cross-coupled coaxial filter and design method thereof |
-
2019
- 2019-01-25 CN CN201920128105.3U patent/CN209418743U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687079A (en) * | 2019-01-25 | 2019-04-26 | 江苏贝孚德通讯科技股份有限公司 | Communicate the capacitive coupling interaction structure of headend equipment device |
| CN115241618A (en) * | 2022-07-29 | 2022-10-25 | 西安空间无线电技术研究所 | Frequency-dependent cross-coupled coaxial filter and design method thereof |
| CN115241618B (en) * | 2022-07-29 | 2024-05-03 | 西安空间无线电技术研究所 | Frequency-variable cross-coupling coaxial filter and design method thereof |
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