CN110224231A - A kind of calibration network device and Massive MIMO array antenna - Google Patents
A kind of calibration network device and Massive MIMO array antenna Download PDFInfo
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- CN110224231A CN110224231A CN201910608778.3A CN201910608778A CN110224231A CN 110224231 A CN110224231 A CN 110224231A CN 201910608778 A CN201910608778 A CN 201910608778A CN 110224231 A CN110224231 A CN 110224231A
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- 239000002184 metal Substances 0.000 claims abstract description 78
- 229910052751 metal Inorganic materials 0.000 claims abstract description 78
- 239000000758 substrate Substances 0.000 claims abstract description 40
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 230000008054 signal transmission Effects 0.000 claims abstract description 5
- 239000000523 sample Substances 0.000 claims description 42
- 229920003023 plastic Polymers 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 7
- 238000003786 synthesis reaction Methods 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000004891 communication Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 5
- 239000010931 gold Substances 0.000 description 5
- 229910052737 gold Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000001465 metallisation Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
Abstract
The invention discloses a kind of calibration network device and Massive MIMO array antennas, the calibration network device whole installation is at concave shape, the calibration network device includes the top layer metallic layer for stacking gradually and pressing setting, first medium substrate, intermediate metal layer, second medium substrate and bottom metal layer, the intermediate metal layer include intermetallic metal and for signal transmission calibration network.The present invention has the availability ratio of the armor plate for improving pcb board, the advantages of compared with low production cost, simultaneously, the calibration network and top layer metallic layer, bottom metal layer, first layer medium substrate, second layer medium substrate and conductive earthing hole constitute closed strip transmission mode, it can be to avoid the influence of external environment, ensure the prevention at radio-frequency port calibration signal amplitude of the calibration network device, phase, the consistency of the electrical characteristics such as impedance, significantly improve the port signal rated capacity of the Massive MIMO array antenna, large scale array antenna system especially suitable for 5G communication.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of calibration network device and Massive MIMO array days
Line.
Background technique
Calibration network is typically all to be process with PCB (printed circuit board), and the raw material of PCB are all standard-sized
High-frequency copper-clad plate, the factory for producing high-frequency copper-clad plate issue some standard sizes and sell on the market；PCB processing industry can be according to institute
The parameters such as size, technique, the number of plies of the PCB to be processed calculate this high-frequency copper-clad plate utilization rate, to calculate material cost.By
More in extensive MIMO array antenna port, the size of calibration network is larger relative to normal procedure intelligent antenna, prior art side
The calibration network of case due to use whole plate design scheme, cause pcb board material utilization rate relatively low, calibration network production cost compared with
It is high.
Summary of the invention
The main purpose of the present invention is to provide a kind of calibration network device for Massive MIMO array antenna, purports
Solve in the prior art produce calibration network during pcb board material utilization rate it is relatively low, calibration network production cost compared with
High problem.
To achieve the above object, the present invention provides a kind of calibration network device for Massive MIMO array antenna,
For the calibration network device whole installation at concave shape, the calibration network device includes the top layer for stacking gradually and pressing setting
Metal layer, first medium substrate, intermediate metal layer, second medium substrate and bottom metal layer, the intermediate metal layer include
Intermetallic metal and for signal transmission calibration network.
Preferably, the calibration network device can be divided into first area, second area and join domain；
The first area and second area are vertically installed in the same side of the join domain, and firstth area
Domain and second area interval are arranged to form the concave shape.
Preferably, the calibration network includes multiple power levels distribution synthesis network and multiple parallel second fundamental forms；Institute
It states multiple power levels distribution synthesis network to be formed by N number of Wilkinson power divider n grades of cascades, and there are M to be divided port and 1 total end
Mouthful, wherein total port is calibration port, N=2n- 1, M=2n, n is positive integer；The parallel second fundamental form with it is described
Point port is arranged in a one-to-one correspondence, and the coupled end of the parallel second fundamental form and the branch of Wilkinson power divider connect, described
Isolation end and the terminal load of parallel second fundamental form connect, the input terminal of the parallel second fundamental form and the Massive
The radio frequency connector of MIMO array antenna connects, the output end of the parallel second fundamental form and the Massive MIMO array
The feed probes of antenna connect.
Preferably, the multiple radio frequency connectors being provided on the calibration network device through the calibration network device are consolidated
Determine hole, wherein deviate from the surface of the first medium substrate, the week of the radio frequency connector fixation hole in the top layer metallic layer
Side is provided with radio frequency connector pad, and radio frequency connector pad side is provided with radio frequency connector evacuation area.
Preferably, the multiple feed probes being provided on the calibration network device through the calibration network device are fixed
Hole and multiple metallic screw ground holes, and in the top layer metallic layer away from the surface of the first medium substrate and/or described
Bottom metal layer deviates from the surface of the second medium substrate, and feed probes fixation hole side is provided with feed probes weldering
Disk, it is described to there is feed probes pad side to be provided with feed probes evacuation area.
Preferably, the patch through the second medium substrate and bottom metal layer is provided on the calibration network device
Resistance connecting hole, and the bottom metal layer deviates from the surface of the second medium substrate, the Chip-R connecting hole
Side is provided with Chip-R pad, and Chip-R pad side is provided with Chip-R evacuation area.
Preferably, the shape in radio frequency connector evacuation area, feed probes evacuation area and Chip-R evacuation area is circle
Shape is rectangular.
Preferably, the multiple plastic rivets being provided on the calibration network device through the calibration network device are fixed
Hole, the plastic rivet fixation hole are used to that the calibration network device to be fixed on the Massive MIMO by plastic rivet
On the metal plate of array antenna.
Preferably, it is provided on the calibration network device through multiple conductive earthing holes of the calibration network device.
Also a kind of Massive MIMO array antenna of the present invention to achieve the above object, Massive MIMO array day
Line includes metal plate, power division network and calibration network device as described in any one of the above embodiments, the power division network and the calibration
Network equipment is respectively arranged at two opposite surfaces of the metal plate, and the top layer metallic layer is sticked with the metal plate.
Technical solution of the present invention is by the way that the network calibration device whole installation at concave shape, namely to be laminated and press
The top layer metallic layer, first medium substrate, intermediate metal layer, second medium substrate and the bottom metal layer being arranged are respectively provided with
At concave shape, and the calibration net in intermediate metal layer setting for signal transmission, realizing the network calibration device
While the function of signal calibration, improve the availability ratio of the armor plate of pcb board, reduce the generation of the network calibration device at
This, thus the lower whole production cost of the Massive MIMO array antenna.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of calibration network device of the present invention；
Fig. 2 is the configuration schematic diagram of one embodiment of calibration network device of the present invention；
Fig. 3 is the structural schematic diagram of an embodiment of the intermediate metal layer of calibration network device of the present invention；
Fig. 4 is the portion the A enlarged structure schematic diagram in Fig. 3；
Fig. 5 is the structural schematic diagram of an embodiment of the top layer metallic layer of calibration network device of the present invention；
Fig. 6 is the portion the B enlarged structure schematic diagram in Fig. 5；
Fig. 7 is the structural schematic diagram of an embodiment of the bottom metal layer of calibration network device of the present invention；
Fig. 8 is the portion the C enlarged structure schematic diagram in Fig. 7；
Fig. 9 is the structural schematic diagram of an embodiment of the second medium substrate of calibration network device of the present invention；
Figure 10 is the portion the D enlarged structure schematic diagram in Fig. 9.
The object of the invention is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
Also referring to Fig. 1-10, to achieve the above object, the present invention provides a kind of for Massive MIMO array day
The calibration network device 100 of line (not shown), 100 whole installation of calibration network device is at concave shape, the calibration network
Device 100 includes the top layer metallic layer 10, first medium substrate 20, intermediate metal layer 30, second for stacking gradually and pressing setting
Medium substrate 40 and bottom metal layer 50, the intermediate metal layer 30 including intermetallic metal 31 and for signal transmission school
Pseudo-crystalline lattice 32.
In the present embodiment, the calibration network device 100 is applied on Massive MIMO array antenna, described
The radiating element (not shown) of multiple array arrangements, multiple radio frequency connectors are generally comprised on Massive MIMO array antenna
(not shown), multiple feed probes (not shown) etc., and the Massive MIMO array antenna further includes that (figure is not for metal plate
Show) and it is set to power division network (not shown) etc. on the metal plate, the power division network is by the feed probes to spoke
Unit feed is penetrated, the radio frequency connector is radiated in space for receiving radiofrequency signal and sending the radiating element to.
In the present embodiment, the radiofrequency signal that the calibration network device 100 is used to radiate radiating element carries out
Calibration.During the calibration network device 100 production, multiple concave shape regions are divided on a monolith pcb board, and every
Two concave shape regions are divided into one group, and two concave shape regions in same group are mutually chimeric, in single concave shape area
The calibration network 32 is printed in domain, and monolith pcb board is cut into multiple concave shapes along the edge in concave shape region later
The intermediate metal layer 30 reduces production cost to improve the availability ratio of the armor plate of the pcb board.
It is understood that the top layer metallic layer 10, first medium substrate 20, second medium substrate 40 and bottom gold
Belong to layer 50 and form concave shape also by technique identical with the intermediate metal layer 30, and by top layer metallic layer 10, first medium
20 intermediate metal layer 30 of substrate, second medium substrate 40 and bottom metal layer 50 are stacked gradually and are pressed together, so that
100 whole installation of the calibration network device formed after pressing at concave shape, and due to the top layer metallic layer 10, first be situated between
Matter substrate 20, intermediate metal layer 30, second medium substrate 40 and bottom metal layer 50 are all provided with and are set to concave shape, can be further
The utilization rate for improving plate, further decreases the production cost of the calibration network device 100.
In the present embodiment, the top layer metallic layer 10 is used as upper metal ground layer, and the intermediate metal layer 30 is as intermediate
Metal ground layer, the bottom metal layer 50 are used as lower metal ground layer, the top layer metallic layer 10, intermediate metal layer 30, bottom gold
Belong to 50 three of layer to be electrically connected to each other, and at least one of them is grounded, the preferably described intermediate metal layer 30 is grounded.
In conclusion the present invention is by the way that 100 whole installation of calibration network device at concave shape, namely to be laminated and press
Close the top layer metallic layer 10, first medium substrate 20, intermediate metal layer 30, second medium substrate 40 and the bottom gold of setting
Belong to layer 50 and be all provided with the calibration net 32 for being set to concave shape, and transmitting in the intermediate metal layer 30 setting for signal, realizes institute
While stating the function of the signal calibration of calibration network device 100, the availability ratio of the armor plate of pcb board in production process is improved, is subtracted
The low production cost of the calibration network device 100, so that the entirety of the lower Massive MIMO array antenna is raw
Produce cost.
Referring to Fig. 1, specifically, the calibration network device 100 can be divided into first area 101, second area 102 with
And join domain 103；The first area 101 is vertically installed in the same side of the join domain 103 with second area 102
Side, and the first area 101 and the interval of second area 102 are arranged to form the concave shape.
In the present embodiment, the calibration network device 100 can be divided into first area 101, second area 102 and connect
Region 103 is connect, the first area 101, second area 102 and join domain 103 are integrally formed, the first area 101,
Second area 102 and join domain 103 can be square region, and the first area 101 is vertically arranged with second area 102
In the same side of the join domain 103, and the first area 101 and the setting of the interval of second area 102 are described to be formed
Concave shape, the concave shape can also be described as U-shaped；One is formed between the first area 101 and second area 102 to lack
Mouth region domain, when the calibration network device 100 is not cut into the single calibration network device 100, the relief area
What is filled in domain is the first area 101 or the second area 102 of another calibration network device 100 with group,
That is, when monolith pcb board is not cut into the single calibration network device 100, with two calibration network devices 100 of group
It is mutually to be fitted to together, in this way, avoids the waste of the pcb board material at the gap regions position, sufficiently benefit
Multiple calibration network devices 100 are formed with the limited area of pcb board, to improve the utilization rate of pcb board material.
Referring to Fig. 4, preferably, the calibration network 32 includes multiple power levels distribution synthesis network (not shown) and more
A parallel second fundamental form 321；The multiple power levels distribution synthesis network is by N number of Wilkinson power divider 322n grades of cascades shape
At, and there is the total port 3222 in M point ports 3221 and 1 (see Fig. 3), wherein total port 3222 is calibration port, N
=2n- 1, M=2n, n is positive integer；The parallel second fundamental form 321 is arranged in a one-to-one correspondence with described point of port 3221, described
The coupled end 3211 of parallel second fundamental form 321 is connect with the branch of Wilkinson power divider 322, the parallel second fundamental form
321 isolation end 3212 and terminal load connects, the input terminal 3213 and the Massive of the parallel second fundamental form 321
The radio frequency connector of MIMO array antenna connects, the output end 3214 and the Massive of the parallel second fundamental form 321
The feed probes of MIMO array antenna connect.
In the present embodiment, it is illustrated so that 31 Wilkinson power dividers, 3225 grades of cascades are formed as an example, it is described
Multiple power levels distribution synthesis network share 32 described in the total port 3222 in point port 3221 and 1, the parallel second fundamental form
321 are arranged in a one-to-one correspondence with described point of port 3221, are also 32, and the coupled end 3211 of the parallel second fundamental form 321
It is connect with point port 3221 described in the branch of Wilkinson power divider 322 namely one of them, the parallel second fundamental form 321
Isolation end 3212 and terminal load namely 50 Ohmic resistances connects, the input terminal 3213 of the parallel second fundamental form 321 and
The radio frequency connector of the Massive MIMO array antenna connects, the output end 3214 of the parallel second fundamental form 321 with
The feed probes of the Massive MIMO array antenna connect, and the feed probes are used to feed to the radiating element.It can
With understanding, the present embodiment is illustrated for being only point port 3221 described in 32, is not limited thereto.
In the present embodiment, when communication base station (not shown) works, by the transmitting terminal (figure of signal receiving/transmission device (not shown)
Do not show) radiofrequency signal that issues enters the radio frequency connector of the Massive MIMO array antenna, using calibration network
The input terminal 3213 of the input terminal of 32 main signal channel namely the parallel second fundamental form 321, it is described parallel fixed to be sent to
To the output end 3214 of coupler 321, the radiofrequency signal is passed through institute by the output end 3214 of the parallel second fundamental form 321
State feed probes send to corresponding radiating element and via radiation unit to space radiate；Meanwhile the parallel second fundamental form
321 coupled end 3211 has coupled the radiofrequency signal by main signal channel, and the radiofrequency signal being coupled to is logical by coupled signal
The output end in road, that is, the coupled end 3211 of the parallel second fundamental form 321 enters the Wilkinson being attached thereto
Power splitter 322 is simultaneously ultimately transmitted the calibration port namely total port 3222, and finally connecing by signal receiving/transmission device
Receiving end is received.
Please refer to Fig. 4,6, it is preferable that be provided on the calibration network device 100 through the calibration network device 100
Multiple radio frequency connector fixation holes 323, wherein the top layer metallic layer 10 deviate from the first medium substrate 20 table
Face, the side of the radio frequency connector fixation hole 323 are provided with radio frequency connector pad 11 (see Fig. 6), the radio frequency connector
11 side of pad is provided with radio frequency connector evacuation area 12.
In the present embodiment, the radio frequency connector fixation hole 323 runs through the calibration network device 100, will be described
Radio frequency connector is fixed on the calibration network device 100, and the radio frequency connector pad 11 is for connecting the radio frequency
Device is fixedly welded on the top layer metallic layer 10, since the top layer metallic layer 10 is grounded, therefore is welded in the radio frequency connector
11 side of disk is provided with radio frequency connector evacuation area 12, avoids the radio frequency connector from contacting with the bottom metal layer 50 and short
Road.
Referring to Fig. 6, specifically, the stitch (not shown) of the radio frequency connector includes being used for transmission in radiofrequency signal
It is excellent for fixing several fixed stitch (not shown) of the radio frequency connector around heart stitch (not shown) and center stitch
Selection of land, the quantity of the fixed stitch are 4, and 4 fixed stitch are evenly spaced in the center stitch surrounding, pass through 4
The radio frequency connector is fixed on the calibration network device 100 by a fixed stitch, to improve the radio frequency connection
The stable connection of device.Accordingly, the radio frequency connector fixation hole 323 includes accordingly fixing with the fixed stitch quantity
Stitch fixation hole 3232 and center stitch fixation hole 3231, the fixed stitch are solid by the fixed stitch fixation hole 3232
Due on the calibration network device 100, the center stitch is fixed on the school by the center stitch fixation hole 3231
Pseudo-crystalline lattice device 100, and the center stitch is connect with the input terminal 3213 of the parallel second fundamental form 321.It is appreciated that
The fixed stitch fixation hole 3232 and center stitch fixation hole 3231 are provided with pad, and at least described center stitch is solid
It surveys in the week for determining 3231 pad of hole and is provided with evacuation area's (not shown), to prevent the center stitch and the top layer metallic layer 10 short
Road.It is understood that the radio frequency connector fixation hole 323 can be metallization VIA.
Referring to Fig. 4, preferably, being provided on the calibration network device 100 through the calibration network device 100
Multiple feed probes fixation holes 13 and multiple metallic screw ground holes 14, and be situated between in the top layer metallic layer 10 away from described first
The surface of matter substrate 20 and/or the bottom metal layer 50 deviate from the surface of the second medium substrate 40, the feed probes
13 side of fixation hole is provided with feed probes pad (not shown), and described have feed probes pad side to be provided with feed probes to keep away
Allow area 15.
In the present embodiment, the feed probes pass through the feed probes fixation hole 13 with the calibration network device
100 are fixedly connected, and described feed probes one end is coupled with the parallel orientation of the calibration network 32 on the intermediate metal layer 30
The output end 3214 of device 321 connects, and described feed probes one end other end is connect with the radiating element, to receive the radio frequency
The radiofrequency signal is simultaneously passed to the radiating element by radiofrequency signal that connector passes over.
In the present embodiment, in the top layer metallic layer 10 away from the surface of the first medium substrate 20 and/or described
Bottom metal layer 50 deviates from the surface of the second medium substrate 40, and 13 side of feed probes fixation hole is provided with feed and visits
Needle pad, the feed probes to be fixed on the calibration network device 100 by the feed probes pad, and it is described
Feed probes pad side is provided with feed probes evacuation area 15, prevent the feed probes and the top layer metallic layer 10 and/
Or bottom metal layer 50 contact and it is short-circuit.
In the present embodiment, the metallic screw ground hole 14 is disposed adjacent with the feed probes fixation hole 13, adjacent
Two be arranged the feed probes fixation hole 13 configures a metallic screw ground hole 14, a feed being separately provided
Probe fixation hole 13 configures a metallic screw ground hole 14, and the metallic screw of the Massive MIMO array antenna passes through institute
Metallic screw ground hole 14 is stated to be fixed on the calibration network device 100.It is understood that the electric probe fixation hole 13
And metallic screw ground hole 14 can be metallization VIA.
Please refer to Fig. 7-10, it is preferable that be provided on the calibration network device 100 through the second medium substrate 40
And the Chip-R connecting hole 16 of bottom metal layer 50, and the bottom metal layer 50 deviates from the table of the second medium substrate 40
On face, the side of the Chip-R connecting hole 16 is provided with Chip-R pad 17, and 17 side of Chip-R pad is set
It is equipped with Chip-R evacuation area 18.
In the present embodiment, the Chip-R of the Massive MIMO array antenna passes through the Chip-R connecting hole
16 connect with the calibration network 32 of the intermediate metal layer 30, and the Chip-R includes the 50 Ω electricity for realizing impedance matching
The function sub-resistance of resistance namely terminal load and Wilkinson power divider 322, the terminal load are set to the bottom
50 surface of metal layer is simultaneously connected by the isolation end 3212 of the Chip-R connecting hole 16 and the parallel second fundamental form 321
It connects；The function sub-resistance is set to 50 surface of bottom metal layer and by the Chip-R connecting hole 16 and the Weir
Two branches connection of the gloomy power splitter 322 of gold, to realize the power dividing function of Wilkinson power divider 322.
In the present embodiment, the Chip-R setting of the intermediate metal layer 30 should be arranged in the bottom gold in script
Belong on layer 50, and realize the electric connection of Chip-R and calibration network 32 by the Chip-R connecting hole 16, to guarantee
The intermediate metal layer 30 is closely sticked with the second medium substrate 40, ensure that good ground connection performance between the two；It keeps away
When having exempted from Chip-R and being set up directly on intermediate metal layer 30, the intermediate metal layer 30 and the second medium substrate 40 it
Between the case where having the gap and leading to imperfect earth.It is understood that the Chip-R connecting hole 16 can be metallization VIA.
In the present embodiment, 16 side of Chip-R connecting hole is provided with Chip-R pad 17, by described
The Chip-R is fixed on the bottom metal layer 50 by Chip-R pad 17, and 17 side of Chip-R pad is arranged
There is Chip-R to avoid area 18, prevents the Chip-R from contacting with the bottom metal layer 50 and short-circuit.
Preferably, the shape in radio frequency connector evacuation area 12, feed probes evacuation area 15 and Chip-R evacuation area 18
Shape is round or rectangular.
In the present embodiment, radio frequency connector evacuation area 12, feed probes evacuation area 15 and Chip-R avoid area
18 it is conveniently of circular shape or rectangular, guarantee good insulation performance, and shape is easily formed, simplify production process.
It is understood that evacuation area can also be other shapes, the present embodiment is not limited thereto.
Preferably, multiple plastics rivetings through the calibration network device 100 are provided on the calibration network device 100
Fixation hole 19 is followed closely, the plastic rivet fixation hole 19 is used to that the calibration network device 100 to be fixed on institute by plastic rivet
On the metal plate for stating Massive MIMO array antenna.
In the present embodiment, the plastic rivet fixation hole 19 is set to the marginal position of the calibration network device 100
Or the white space in the calibration network device 100, the plastic rivet fixation hole 19 is passed through for institute by plastic rivet
It states calibration network device 100 to be fixed on the metal plate of the Massive MIMO array antenna, guarantees the calibration network dress
Set 100 overall stability.
Preferably, the multiple conductions being provided on the calibration network device 100 through the calibration network device 100 connect
Ground hole 21.
In the present embodiment, the conductive earthing hole 21 can be metallization VIA, and the conductive earthing hole 21 is densely arranged,
At least partly described conductive earthing hole 21 is arranged in the two sides of the strip line of the calibration network 32, and described in at least described part
Conductive earthing hole 21 is arranged in the marginal position of the calibration network device 100.The calibration network 32 of the intermediate metal layer 30
With the top layer metallic layer 10, bottom metal layer 50, first layer medium substrate, second layer medium substrate and conductive earthing hole 21
Closed strip transmission mode is constituted, using this integrated architecture design, avoids the influence of external environment, it is ensured that described
The consistency of the electrical characteristics such as the prevention at radio-frequency port calibration signal amplitude of calibration network device 100, phase, impedance, significantly improves institute
The port signal rated capacity for stating Massive MIMO array antenna, the large scale array aerial system especially suitable for 5G communication
System.
To achieve the above object the present invention also provides a kind of Massive MIMO array antenna, described Massive MIMO gusts
Array antenna includes metal plate, power division network and calibration network device as described above 100, the power division network and the calibration net
Network device 100 is respectively arranged at two opposite surfaces of the metal plate, and the top layer metallic layer 10 and the metal plate paste
If.
In the present embodiment, the power division network is used to feed to the feed probes, and the metal plate is used for described
Calibration network device 100, which is given, to be supported, since the Massive MIMO array antenna includes above-mentioned calibration network device
100, thus at least with the beneficial effect of above-mentioned calibration network device 100, details are not described herein.
In the present embodiment, the calibration network device 100 and the Massive MIMO array antenna are suitable for work
Make the calibration network 32 for the extensive mimo antenna that frequency range is Sub 6GHz, including 2.3G frequency range (2.3GHz-2.5GHz), 2.6G
Frequency range (2.496GHz-2.690GHz), 3.5G frequency range (3.3GHz-3.8GHz), 4.5G frequency range (4.4GHz-5.2GHz) etc..
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of calibration network device for Massive MIMO array antenna, which is characterized in that the calibration network device
For whole installation at concave shape, the calibration network device includes the top layer metallic layer for stacking gradually and pressing setting, first medium
Substrate, intermediate metal layer, second medium substrate and bottom metal layer, the intermediate metal layer include intermetallic metal and be used for
The calibration network of signal transmission.
2. calibration network device as described in claim 1, which is characterized in that
The calibration network device can be divided into first area, second area and join domain；
The first area and second area are vertically installed in the same side of the join domain, and the first area with
Second area interval is arranged to form the concave shape.
3. calibration network device as claimed in claim 2, which is characterized in that
The calibration network includes multiple power levels distribution synthesis network and multiple parallel second fundamental forms；
The multiple power levels distribution synthesis network is formed by N number of Wilkinson power divider n grades of cascades, and there are M to be divided port and 1
A total port, wherein total port is calibration port, N=2n- 1, M=2n, n is positive integer；
The parallel second fundamental form is arranged in a one-to-one correspondence with described point of port, the coupled end and prestige of the parallel second fundamental form
The branch of Er Jinsen power splitter connects, and isolation end and the terminal load of the parallel second fundamental form connect, the parallel orientation
The input terminal of coupler is connect with the radio frequency connector of the Massive MIMO array antenna, the parallel second fundamental form
Output end is connect with the feed probes of the Massive MIMO array antenna.
4. calibration network device as claimed in claim 3, which is characterized in that be provided on the calibration network device through institute
State multiple radio frequency connector fixation holes of calibration network device, wherein deviate from the first medium base in the top layer metallic layer
The surface of plate, the side of the radio frequency connector fixation hole are provided with radio frequency connector pad, the radio frequency connector pad week
Side is provided with radio frequency connector evacuation area.
5. calibration network device as claimed in claim 3, which is characterized in that be provided on the calibration network device through institute
The multiple feed probes fixation holes and multiple metallic screw ground holes of calibration network device are stated, and are deviated from the top layer metallic layer
The surface of the first medium substrate and/or the bottom metal layer deviate from the surface of the second medium substrate, the feed
Probe fixation hole side is provided with feed probes pad, described to have feed probes pad side to be provided with feed probes evacuation area.
6. calibration network device as claimed in claim 3, which is characterized in that be provided on the calibration network device through institute
The Chip-R connecting hole of second medium substrate and bottom metal layer is stated, and the bottom metal layer deviates from the second medium base
On the surface of plate, the side of the Chip-R connecting hole is provided with Chip-R pad, and Chip-R pad side is set
It is equipped with Chip-R evacuation area.
7. such as the described in any item calibration network devices of claim 4-6, which is characterized in that radio frequency connector evacuation area,
It is round or rectangular that feed probes, which avoid area and the shape in Chip-R evacuation area,.
8. calibration network device as described in claim 1, which is characterized in that be provided on the calibration network device through institute
Multiple plastic rivet fixation holes of calibration network device are stated, the plastic rivet fixation hole is used to pass through plastic rivet for the school
Pseudo-crystalline lattice device is fixed on the metal plate of the Massive MIMO array antenna.
9. calibration network device as described in claim 1, which is characterized in that be provided on the calibration network device through institute
State multiple conductive earthing holes of calibration network device.
10. a kind of Massive MIMO array antenna, which is characterized in that the Massive MIMO array antenna includes metal
Plate, power division network and such as described in any item calibration network devices of claim 1-9, the power division network and the calibration network
Device is respectively arranged at two opposite surfaces of the metal plate, and the top layer metallic layer is sticked with the metal plate.
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