CN208423180U - A kind of cavity feeding network and antenna inhibiting resonance - Google Patents
A kind of cavity feeding network and antenna inhibiting resonance Download PDFInfo
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- CN208423180U CN208423180U CN201821138065.2U CN201821138065U CN208423180U CN 208423180 U CN208423180 U CN 208423180U CN 201821138065 U CN201821138065 U CN 201821138065U CN 208423180 U CN208423180 U CN 208423180U
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- conductive layer
- metal plate
- pcb board
- feeding network
- resonance
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
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- 238000004891 communication Methods 0.000 abstract description 7
- 230000005764 inhibitory process Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 41
- 239000000463 material Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
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- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
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- 239000002305 electric material Substances 0.000 description 2
- 210000000567 greater sac Anatomy 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
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- 239000012811 non-conductive material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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Abstract
The utility model relates to a kind of cavity feeding networks and antenna for inhibiting resonance, and inhibiting the cavity feeding network of resonance includes pcb board and the first metal plate, have the interval of certain distance to install between the pcb board and the first metal plate；The pcb board is equipped with metallic signal lines in the one side close to the first metal plate；It is spaced apart from each other between the pcb board and the first metal plate and is additionally provided at least one first conduct piece, first conduct piece connects pcb board and the first metal plate.Antenna, the cavity feeding network including inhibition resonance described above.The advantages that relatively traditional cavity feeding network of the utility model, has loss small, and section is low, and structure is simple, at low cost, easy to produce, is highly suitable for feeding network application extensive, more complex in wireless communication.
Description
Technical field
The utility model relates to communication antenna technical field more particularly to a kind of cavity feeding networks for inhibiting resonance.
Background technique
In 5G wireless communication system, need to realize the wave of aerial array using extensive, more complex feeding network
Beam figuration, in practical application, in order to shield influence of the energy leakage of feeding network to other devices of communication equipment, it is desirable that feed
Network is placed within closing or semi-enclosed metal cavity.However due to the presence of feeding network, inside cavity can have been motivated not
It with the electromagnetic energy of mode, shows as generating resonance in required frequency passband, causes the power of feeding network, phase to occur different
Ordinary wave is dynamic.Therefore, the design of cavity feeding network has to consider how to inhibit resonance.Currently, generalling use in the industry entire
Cavity is divided into several small-sized cavitys and avoids resonance in such a way that cable connects again.Obviously, this mode causes feeding network ruler
Very little huge, assembled and production is very cumbersome, and the connection cables introduced can introduce very big insertion loss, influence properties of product
And production efficiency.
Based on the above demand, the utility model proposes a kind of low section, low-loss, the inhibition that structure is simple, at low cost
The cavity feeding network of resonance.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of cavity feeding networks for inhibiting resonance, including pcb board
With the first metal plate, there is the interval of certain distance to install between the pcb board and the first metal plate；The pcb board is close to the
The one side of one metal plate is equipped with metallic signal lines；
It is spaced apart from each other between the pcb board and the first metal plate and is additionally provided at least one first conduct piece, described first leads
Electric part connects pcb board and the first metal plate.
Further, first conduct piece include conductive material be made or non-conducting material outside wrap up conductive material
It is made.
Further, first conduct piece be it is multiple, with metallic signal lines be conductively connected be distributed in pcb board and
Between first metal plate.
Further, the cavity feeding network includes the second conduct piece, and second conduct piece leans on the setting of proximal edge,
For preventing the energy leakage of feeding network.
Further, the distance between the pcb board and the first metal plate are not less than 0.5mm.
Further, the pcb board includes the first conductive layer and/or the second conductive layer；
First conductive layer and the second conductive layer are electrically connected with the first conduct piece.
Further, first conductive layer is located at the face close to the first metal plate and is isolated with metallic signal lines；The
Two conductive layers are equipped with the second conductive layer in the face far from the first metal plate.
Further, for metal, the second conductive layer and the first conductive layer are logical for second conductive layer and the first conductive layer
Cross the metallization VIA electrical connection on pcb board, the corresponding first metalwork setting of the metallization VIA.
Further, second conductive layer is the second metal plate, first conductive layer for metal, the first conductive layer
It is connect with the second conductive layer with the metallization VIA on pcb board.
A kind of antenna is also disclosed, the cavity feeding network including inhibiting resonance described in above-mentioned any one.
Compared with prior art, the utility model has the beneficial effects that:
The utility model makes to realize between metal plate and pcb board using conduct piece to be electrically connected, and three is made to form equipotential, then
By the way that the number and distribution of conduct piece is rationally arranged, it is dispersed into the electric current motivated under the mode of resonance of script cavity more
Resonance frequency has been moved on to higher frequency except free transmission range, to effectively inhibit cavity resonant to feedback by a loop region
The influence of electric network performance.
Meanwhile relatively traditional cavity feeding network, the utility model proposes cavity feeding network have be lost it is small, cut open
The advantages that face is low, and structure is simple, at low cost, easy to produce is highly suitable for feeding network extensive, more complex in wireless communication
Using.
[Detailed description of the invention]
Fig. 1 is the decomposition diagram for inhibiting the cavity feeding network of resonance；
Fig. 2 is the partial cross-sectional view for inhibiting the cavity feeding network of resonance；
Fig. 3 is the schematic cross-sectional view of another angle of Fig. 2；
Fig. 4 is the partial cross-sectional view of another embodiment；
Fig. 5 is the schematic cross-sectional view of another angle of Fig. 4；
Fig. 6 is power curve comparison diagram；
Fig. 7 is phase curve comparison diagram.
It is identified in figure: the first metal plate of 10a-；The second metal plate of 10b-；20-PCB plate；The second conduct piece of 30-；40- first
Conduct piece；201- metallization VIA；The second conductive layer of 202-；203- metallic signal lines；The first conductive layer of 204-.
[specific embodiment]
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model does not limit the utility model.
In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the utility model embodiment unless specifically defined or limited otherwise, term " installation ", " connects " connected "
Connect ", the terms such as " fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；
It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
A kind of cavity feeding network for inhibiting resonance, including pcb board 20 are provided in the utility model with reference to shown in attached drawing 1
With the first metal plate 10a, there is the interval of certain distance to install between the pcb board 20 and the first metal plate 10a；The pcb board
20 are equipped with metallic signal lines 203 in the one side close to the first metal plate 10a；
Be spaced apart from each other between the pcb board 20 and the first metal plate 10a be equipped at least one first conduct piece 40, it is described
First conduct piece 40 connects pcb board 20 and the first metal plate 10a.
First conduct piece 40 is distributed between pcb board 20 and the first metal plate 10a including multiple, and described first is conductive
Part 40 is not electrically connected with metallic signal lines 203.
When it is implemented, arranged according to signal wire on pcb board 20, by be rationally arranged the first conduct piece 40 number and
With the relative position between metallic signal lines 203, will be motivated under cavity resonant mode between pcb board 20 and the first metal plate 10a
The electric current risen is dispersed into multiple loop regions, resonance frequency has been moved on to higher frequency except free transmission range, thus effectively
Inhibit influence of the cavity resonant to feeding network performance.
In one embodiment, the first conduct piece 40 is made of metal material, and the metal column of embedded screw thread, make its with
When pcb board 20 contacts, the lower end of metal column and the first metal plate 10a are fixedly mounted (specifically can be using pressing or be opened
Mode makes the first conduct piece 40 and the first metal plate 10a integral forming), pcb board can be passed through from the top of pcb board 20 with screw
Metal column is screwed in be compressed.
First conduct piece 40 as described above is made of conductive material, specifically such as uses copper, iron or aluminium material system
At the first conduct piece 40 can be made straight cylindric, naturally it is also possible to non-linear shapes be made.
In other embodiments, the inside of first conduct piece 40 is made of non-conducting material, and external then package is led
Electric material is allowed to have conducting function.Conduction material such as specifically is set in the ceramics of strip, rubber or foam material outer wall
Material specifically such as makes surface have conducting function by package metallic film, spraying or plating metal on surface technique.
The cavity feeding network includes the second conduct piece 30, and second conduct piece 30 leans on the setting of proximal edge, is used for
Prevent the energy leakage of feeding network.Here the second conduct piece 30 surrounds metallic signal lines 203, and respectively with pcb board 20 and
First metal plate 10a is in contact connection, so that opposite closing chamber is formed between pcb board 20 and the first metal plate 10a, with
Reduce the energy leakage of feeding network.Certainly, the selection of the second conduct piece 30 is versatile and flexible, can be metal column or metal strip,
Either surface is coated with a variety of materials of conductive materials, can be located at middle part or the surrounding of pcb board 20, and number and shape can be with
Flexible setting is needed according to performance.
In one embodiment, second conduct piece 30 is bars made of metal material, and bars are respectively along first
The side of metal plate 10a is arranged, described while opposite for the first metal plate 10a two, is formed with the first conduct piece 40 with respect to it
Between the electric current that has motivated under the intracorporal mode of resonance of chamber be dispersed into multiple loop regions.
In another embodiment, second conduct piece 30 is column made of metal material, and column is respectively along the
Four sides of one metal plate 10a are arranged, so that column surrounds metallic signal lines 203.
It is worth noting that second conduct piece 30 can finish up the arrangement to connect connect to be formed it is close-shaped；It can also be with
It is the non-separately shape for finishing up and connecting.
In a further embodiment, second conduct piece 30 can also be that the film with conducting function, film are located at
Pcb board 20 and the opposite side the first metal plate 10a surround metallic signal lines 203.
In order to reach conducting function to guarantee to be formed between pcb board 20 and the first metal plate 10a opposite closing chamber in
The energy leakage of feeding network is reduced, further, second conduct piece 30 is made including metal material, or in non-conductive material
Material is external to wrap up conductive material.
In order to guarantee the transmission stability of metallic signal lines 203, between the pcb board 20 and the first metal plate 10a away from
From not less than 0.5mm.
In one embodiment, the second conduct piece 30 as described above is made of conductive material, it is specific as using copper, iron or
The materials such as aluminium are made, and the second conduct piece 30 can make the cylindric of straight polygon strip or strip, naturally it is also possible to
Non-linear shapes are made according to specific metallic signal lines 203 layout.
In other embodiments, the inside of second conduct piece 30 is made of non-conducting material, and external then package is led
Electric material is allowed to have conducting function.Conduction material such as specifically is set in the ceramics of strip, rubber or timber material outer wall
Material specifically such as has conducting function by the surface that package metallic film, spraying or surface gold-plating metal technique are.
In one embodiment, the distance between the pcb board 20 and the first metal plate 10a 2.2mm, makes entire cavity
Feeding network total height is less than 4mm, only the 40% of traditional scheme.
Certain other embodiment, can also be according to different design requirements by the pcb board 20 and the first metal plate 10a
The distance between be set as 0.5mm, 4mm or 10mm.
It should be pointed out that first conduct piece 40 height be equal between pcb board 20 and the first metal plate 10a away from
From size, that is to say, that the first conduct piece 40 can play certain supporting role；The height etc. of second conduct piece 30 simultaneously
In the distance between pcb board 20 and the first metal plate 10a size, that is to say, that the top tap touching pcb board of the second conduct piece 30
20, the first metal plate 10a of lower part tap touching of the second conduct piece 30.
The pcb board 20 includes the first conductive layer 204 and/or the second conductive layer 202；First conductive layer 204 and
Two conductive layers 202 are electrically connected with the first conduct piece 40.
First conductive layer 204 is located at the face close to the first metal plate 10a and is isolated with metallic signal lines 203；The
Two conductive layers 202 are equipped with the second conductive layer in the face far from the first metal plate 10a.
In one embodiment, the pcb board 20 is equipped in the face close to the first metal plate 10a is isolated with metallic signal lines 203
The first conductive layer 204.Here the first conductive layer 204 contacts the first conduct piece 40 and one end conduction of the second conduct piece 30 connects
It connects.
The pcb board 20 is also provided with the second conductive layer 202 in the face far from the first metal plate 10a, and described second leads
Electric layer 202 is connect with the first conductive layer 204.
First conductive layer 204 and the second conductive layer 202 can be connected to respectively or disjunct region.
In other case study on implementation, the pcb board 20 is not provided with the first conductive layer 204, is provided only with the second conductive layer
202, the second conductive layer 202 directly contacts realization electrical connection with the first conduct piece 40, or by between the metallization VIA on PCB
Connect realization electrical connection.
In one embodiment, first conductive layer 204 and the second conductive layer 202 be with being set as metal；In addition implementation
The second conductive layer 202 can also be set as the second metal plate 10b in example, it is believed that the second metal plate 10b and the first metal plate
10a is symmetrical arranged for pcb board 20.
In order to realize the first conductive layer 204 and the conductive connection of the second conductive layer 202 on pcb board 20, opened on pcb board 20
If metallization VIA 201, corresponding first conduct piece 40 setting of the metallization VIA 201, to realize 204 He of the first conductive layer
Second conductive layer 202 is connected to form equipotential with the first metal plate 10a.
Metallic signal lines 203 have been designed to complicated multiport feeding network, including Wilkinson power divider, coupler,
Electric bridge etc..
It may also be noted that the pcb board 20 of above-described embodiment is single-layer medium structure；And PCB in other embodiment
Plate 20 is that multilayer dielectricity presses together structure.
A kind of antenna is also disclosed, the cavity feeding network including inhibiting resonance described in above-mentioned any one.
Fig. 6 is the cavity feeding network power curve comparison diagram for inhibiting resonance, and dotted line is general cavity feeding network
Power curve, solid line are the power curve of the utility model.By comparison it is found that dashed line view produced in free transmission range it is very big
Power jump, maximum reaches 3dB, and real diagram is maintained between -29.1 ± 0.1dB in the fluctuation of power curve in free transmission range,
Maximum only 0.2dB.
Fig. 7 is the cavity feeding network phase curve comparison diagram for inhibiting resonance, and dotted line is general cavity feeding network
Phase curve, solid line are the phase curve of the utility model.By comparison it is found that dashed line view produces phase jump in free transmission range
Become, and phase of the real diagram in free transmission range keeps the extraordinary linearity.
From the above comparison it is found that the utility model inhibits the cavity feeding network of resonance in 5G communication band 2500-
In 2700MHz, the resonance for inhibiting cavity to generate well, power curve is flat, and phase linearity is good, and section is low, knot
Structure is simple, at low cost, is highly suitable for new generation of wireless field of communication technology.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of cavity feeding network for inhibiting resonance, it is characterised in that: including pcb board (20) and the first metal plate (10a), institute
Stating has the interval of certain distance to install between pcb board (20) and the first metal plate (10a)；The pcb board (20) is close to first
The one side of metal plate (10a) is equipped with metallic signal lines (203)；
It is spaced apart from each other between the pcb board (20) and the first metal plate (10a) and is additionally provided at least one first conduct piece (40), institute
It states the first conduct piece (40) and connects pcb board (20) and the first metal plate (10a).
2. inhibiting the cavity feeding network of resonance as described in claim 1, it is characterised in that: first conduct piece (40) is
It is multiple, it is distributed between pcb board (20) and the first metal plate (10a) with not being conductively connected with metallic signal lines (203).
3. inhibiting the cavity feeding network of resonance as claimed in claim 1 or 2, it is characterised in that: first conduct piece
(40), including conductive material is made or non-conducting material outside package conductive material is made.
4. inhibiting the cavity feeding network of resonance as described in claim 1, it is characterised in that: the cavity feeding network includes
Second conduct piece (30), second conduct piece (30) leans on the setting of proximal edge, for preventing the energy leakage of feeding network.
5. inhibiting the cavity feeding network of resonance as described in claim 1, it is characterised in that: the pcb board (20) and first
The distance between metal plate (10a) is not less than 0.5mm.
6. the cavity feeding network as claimed in claim 1 or 5 for inhibiting resonance, it is characterised in that: the pcb board (20) includes
First conductive layer (204) and/or the second conductive layer (202)；
First conductive layer (204) and the second conductive layer (202) are electrically connected with the first conduct piece (40).
7. the cavity feeding network as claimed in claim 1 or 5 for inhibiting resonance, it is characterised in that: first conductive layer
(204) it is located at the face close to the first metal plate (10a) and is isolated with metallic signal lines (203)；Second conductive layer (202) is remote
Face from the first metal plate (10a) is equipped with the second conductive layer (202).
8. inhibiting the cavity feeding network of resonance as claimed in claim 7, it is characterised in that: second conductive layer (202)
For metal with the first conductive layer (204), the second conductive layer (202) and the first conductive layer (204) pass through the gold on pcb board (20)
Categoryization via hole (201) electrical connection, the corresponding first metalwork setting of the metallization VIA (201).
9. inhibiting the cavity feeding network of resonance as claimed in claim 7, it is characterised in that: second conductive layer (202)
The second metal plate (10b), first conductive layer (204) for metal, the first conductive layer (204) and the second conductive layer
(202) it is connect with the metallization VIA (201) on pcb board (20).
10. a kind of antenna, it is characterised in that: including the cavity transmission network described in any one of claim 1-9 for inhibiting resonance
Network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821138065.2U CN208423180U (en) | 2018-07-18 | 2018-07-18 | A kind of cavity feeding network and antenna inhibiting resonance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821138065.2U CN208423180U (en) | 2018-07-18 | 2018-07-18 | A kind of cavity feeding network and antenna inhibiting resonance |
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| CN208423180U true CN208423180U (en) | 2019-01-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066100A (en) * | 2018-07-18 | 2018-12-21 | 深圳市深大唯同科技有限公司 | A kind of cavity feeding network and antenna inhibiting resonance |
| CN110931975A (en) * | 2019-12-06 | 2020-03-27 | 电子科技大学 | A Broadband Low Sidelobe Low Profile Planar Array Antenna |
| CN110943293A (en) * | 2019-11-19 | 2020-03-31 | 京信通信技术(广州)有限公司 | Feed network device and antenna |
| WO2021035866A1 (en) * | 2019-08-26 | 2021-03-04 | 深圳迈睿智能科技有限公司 | Microwave detector having grounding point and manufacturing method for microwave detector |
-
2018
- 2018-07-18 CN CN201821138065.2U patent/CN208423180U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066100A (en) * | 2018-07-18 | 2018-12-21 | 深圳市深大唯同科技有限公司 | A kind of cavity feeding network and antenna inhibiting resonance |
| CN109066100B (en) * | 2018-07-18 | 2024-01-30 | 中天宽带技术有限公司 | Cavity feed network and antenna for inhibiting resonance |
| WO2021035866A1 (en) * | 2019-08-26 | 2021-03-04 | 深圳迈睿智能科技有限公司 | Microwave detector having grounding point and manufacturing method for microwave detector |
| CN110943293A (en) * | 2019-11-19 | 2020-03-31 | 京信通信技术(广州)有限公司 | Feed network device and antenna |
| CN110943293B (en) * | 2019-11-19 | 2021-05-28 | 京信通信技术(广州)有限公司 | Feed network device and antenna |
| CN110931975A (en) * | 2019-12-06 | 2020-03-27 | 电子科技大学 | A Broadband Low Sidelobe Low Profile Planar Array Antenna |
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Effective date of registration: 20210901 Address after: 226400 Zhongtian Industrial Park, Hekou Town, Rudong County, Nantong City, Jiangsu Province Patentee after: ZHONGTIAN BROADBAND TECHNOLOGY Co.,Ltd. Patentee after: Zhongtian Communication Technology Co.,Ltd. Patentee after: SHENZHEN WAVETONE TECHNOLOGY Co.,Ltd. Address before: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee before: SHENZHEN WAVETONE TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20190122 |