CN108417995A - Antenna element and array antenna for 5G mobile communication - Google Patents
Antenna element and array antenna for 5G mobile communication Download PDFInfo
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- CN108417995A CN108417995A CN201810449630.5A CN201810449630A CN108417995A CN 108417995 A CN108417995 A CN 108417995A CN 201810449630 A CN201810449630 A CN 201810449630A CN 108417995 A CN108417995 A CN 108417995A
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- mobile communication
- irradiation unit
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- dielectric layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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- Waveguide Aerials (AREA)
Abstract
The invention discloses the antenna elements and array antenna for 5G mobile communication, including feed element and radiating element, feed element includes pcb board dielectric layer, stratum and feed line, and feed line is set to the top surface of pcb board dielectric layer, and stratum is set to the bottom surface of pcb board dielectric layer；Radiating element includes metalwork and feed radiation component, and side of the metalwork far from pcb board dielectric layer is equipped with accommodating cavity, and accommodating cavity is equipped with accommodating hole close to the side of pcb board dielectric layer；It is in spike to feed radiation component, and feed radiation component includes the current feed department being in the form of a column and plate-like irradiation unit, and one end of current feed department is connected with irradiation unit, and the other end of current feed department is electrically connected through accommodating hole with feed line, and irradiation unit is located in accommodating cavity；Metalwork is electrically connected with stratum and irradiation unit respectively.This is simple in structure, procedure of processing is few.
Description
Technical field
The present invention relates to antenna industries, the more particularly, to antenna element and array antenna of 5G mobile communication.
Background technology
Millimeter wave frequency band is because it can provide big bandwidth, high user capacity and reach several GB data transmission speed per second
The characteristics such as rate, and become one of the frequency range of the 5th generation (5G) mobile communication.
However, larger path loss is had when millimeter wave is propagated in free space, so just needing narrow beam width
And the adjustable phased array antenna of wave beam the influence that big path loss is brought is offset with big gain.In recent years, band metal
The mobile device of frame increasingly becomes trend, so millimeter wave antenna is also considered as such situation.
In article Bin Yu, et.al, " A Novel 28GHz Beam Steering Array for 5G Mobile
Device with Metallic Casing Application”,IEEE TRANSACTIONS ON ANTENNAS AND
In PROPAGATION, VOL.66, NO.1, pp.462-466, JANUARY 2018, it is proposed that one works in 28GHz frequency ranges
(U.S. FCC definition) and the cavity slot array antenna formed in the way of metal edge frame fluting, in array side
To size be more than half-wavelength, and need to slot on two faces of metal edge frame, the slot of side (is done for assembling staged nail
It is for impedance matching at staged), the slot at top is used for aerial radiation.Metal edge frame needs two sides fluting processing.
Invention content
The technical problem to be solved by the present invention is to：A kind of antenna element and array day for 5G mobile communication is provided
Line, antenna element processing are simple.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：For the antenna element of 5G mobile communication,
Including feed element and radiating element, feed element includes pcb board dielectric layer, stratum and feed line, and feed line is situated between set on pcb board
The top surface of matter layer, stratum are set to the bottom surface of the pcb board dielectric layer；Radiating element includes metalwork and feed radiation component, metal
Side of the part far from pcb board dielectric layer is equipped with accommodating cavity, and accommodating cavity is equipped with accommodating hole close to the side of pcb board dielectric layer；It is described
It is in spike to feed radiation component, and feed radiation component includes the current feed department being in the form of a column and plate-like irradiation unit, one end of current feed department with
Irradiation unit is connected, and the other end of current feed department is electrically connected through the accommodating hole with the feed line, and irradiation unit is located at described accommodating
In chamber；The metalwork is electrically connected with the stratum and the irradiation unit respectively.
In order to solve the above-mentioned technical problem, the following technical scheme that the present invention also uses：Array antenna is set to metal edge frame
On, including the above-mentioned antenna element for 5G mobile communication, the quantity of the antenna element for 5G mobile communication be it is N number of,
The antenna element for 5G mobile communication is in the array arrangement of Nx1 on the metal edge frame；N is the integer more than 2, institute
It is the metal edge frame to state metalwork.
In order to solve the above-mentioned technical problem, the following technical scheme that the present invention also uses：Antenna for 5G mobile communication
Unit, including feed element and radiating element, feed element include pcb board dielectric layer, stratum and feed line, and feed line is set to
The bottom surface of pcb board dielectric layer, stratum are set to the top surface of the pcb board dielectric layer；Radiating element includes that medium member and feed radiate
Part, medium member are set to side of the stratum far from the pcb board dielectric layer, and the top surface of medium member is equipped with becket, medium member
Multiple vias are equipped with, the becket is electrically connected with the stratum by the via, and multiple vias are along the metal
Ring is linked to be a circle so that an accommodating cavity is collectively formed with stratum in the medium member；The feed radiation component is in spike and is located at institute
It states in accommodating cavity, feed radiation component includes the current feed department formed by via and plate-like irradiation unit, one end of current feed department and spoke
It penetrates portion to be connected, the other end of current feed department is electrically connected with the feed line, and irradiation unit is set to the top surface of medium member and is located at the appearance
It sets in chamber, the first side of irradiation unit is electrically connected with the becket.
The beneficial effects of the present invention are：Only accommodating cavity need to be arranged on a side of metal edge frame can be realized feed
The assembly of radiation component and aerial radiation are slotted on two sides of metal edge frame compared with the prior art, and structure is simpler, adds
Work step is suddenly less, is conducive to the manufacturing cost for improving production efficiency, reducing mobile terminal device；5G millimeters for mobile communication
Wave antenna unit occupancy metal edge frame lateralarea is small, is influenced on the structural strength of metal edge frame smaller；For mobile communication
Width of the 5G millimeter wave antennas unit in array orientation is less than half-wavelength, is conducive to improve the isolation between unit and big angle
Degree scans and obtains low back lobe.
Description of the drawings
Fig. 1 is the schematic diagram for the array antenna of the embodiment of the present invention one being made on metal edge frame；
Fig. 2 is the structural schematic diagram of the antenna element for 5G mobile communication of the embodiment of the present invention one；
Fig. 3 is the explosive view of the antenna element for 5G mobile communication of the embodiment of the present invention one；
Fig. 4 is the return loss simulation result diagram of the antenna element for 5G mobile communication of the embodiment of the present invention one；
Fig. 5 is the antenna pattern of the antenna element for 5G mobile communication of the embodiment of the present invention one；
Fig. 6 is the S parameter figure of the array antenna on the metal edge frame of the embodiment of the present invention one；
Fig. 7 is scanning figure of the array antenna in 28GHz on the metal edge frame of the embodiment of the present invention one；
Fig. 8 is 3-D scanning figure (scan angle of the array antenna in 28GHz on the metal edge frame of the embodiment of the present invention one
=0 degree)；
Fig. 9 is 3-D scanning figure (scan angle of the array antenna in 28GHz on the metal edge frame of the embodiment of the present invention one
=30 degree)；
Figure 10 is 3-D scanning figure (scanning of the array antenna in 28GHz on the metal edge frame of the embodiment of the present invention one
Angle=60 degree)；
Figure 11 is that the structure for the antenna element for 5G mobile communication of the embodiment of the present invention two being made on pcb board is shown
It is intended to.
Label declaration：
1, array antenna；2, feed element；21, pcb board dielectric layer；22, stratum；23, feed line；3, radiating element；31、
Metalwork；311, accommodating cavity；312, accommodating hole；32, radiation component is fed；321, current feed department；322, irradiation unit；3221, the first side
Side；3222, second side；33, medium member；331, via；34, becket；41, the first filling member；42, the second filling member；
100, metal edge frame；101, left frame；102, left frame；103, upper side frame；104, lower frame；105, metal medium plate.
Specific implementation mode
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and coordinate attached
Figure is explained.
The design of most critical of the present invention is：One accommodating cavity is set, irradiation unit, accommodating cavity and irradiation unit are equipped in accommodating cavity
Form radiating element.
Fig. 1 to Figure 11 is please referred to, the antenna element of 5G mobile communication, including feed element 2 and radiating element 3, feedback are used for
Electric unit 2 includes pcb board dielectric layer 21, stratum 22 and feed line 23, and feed line 23 is set to the top surface of pcb board dielectric layer 21, ground
Layer 22 is set to the bottom surface of the pcb board dielectric layer 21；Radiating element 3 includes metalwork 31 and feed radiation component 32, metalwork 31
Side far from pcb board dielectric layer 21 is equipped with accommodating cavity 311, and accommodating cavity 311 is equipped with accommodating close to the side of pcb board dielectric layer 21
Hole 312；The feed radiation component 32 is in spike, and feed radiation component 32 includes the current feed department 321 being in the form of a column and plate-like radiation
The one end in portion 322, current feed department 321 is connected with irradiation unit 322, the other end of current feed department 321 through the accommodating hole 312 with it is described
Feed line 23 is electrically connected, and irradiation unit 322 is located in the accommodating cavity 311；The metalwork 31 respectively with the stratum 22 and institute
State the electrical connection of irradiation unit 322.
Array antenna 1 is set on metal edge frame 100, including the above-mentioned antenna element for 5G mobile communication, described to be used for
The quantity of the antenna element of 5G mobile communication is N number of, and the antenna element for 5G mobile communication is in the metal edge frame 100
The upper array arrangement in Nx1；N is the integer more than 2, and the metalwork 31 is the metal edge frame 100.
As can be seen from the above description, the beneficial effects of the present invention are：Only appearance need to be set on a side of metal edge frame
Feed radiation component can be realized in chamber assembly and aerial radiation are set, is opened on two sides of metal edge frame compared with the prior art
Slot, structure is simpler, procedure of processing is less, is conducive to the manufacturing cost for improving production efficiency, reducing mobile terminal device；For
The 5G millimeter wave antenna units of mobile communication occupy that metal edge frame lateralarea is small, on the structural strength of metal edge frame influence compared with
It is small；Width of the 5G millimeter wave antennas unit in array orientation for mobile communication is less than half-wavelength, is conducive to improve single
Isolation and wide-angle between member scan and obtain low back lobe.
Further, the tie point of the irradiation unit 322 and the current feed department 321 is close to the top surface of the irradiation unit 322
Setting.
Further, the first filling member 41 for fixing the feed radiation component 32 is equipped in the accommodating cavity 311.
Seen from the above description, the first filling member is conducive to the stabilization for improving antenna unit structure for fixing irradiation unit
Property.
Further, the material of first filling member 41 is improved PC or LCP.
Seen from the above description, the first filling member is made using low-loss material and advantageously ensures that antenna element performance.
Further, the second filling member 42 for fixing the current feed department 321 is equipped in the accommodating hole 312.
Seen from the above description, the second filling member is conducive to further increase antenna unit structure for fixing current feed department
Stability.In addition, the first and second filling member can be integral structure, it is not limited to two individually individuals.
Further, the current feed department 321 is arranged perpendicular to the irradiation unit 322.
Further, the spacing of the two neighboring antenna element for 5G mobile communication is equal to the 5G that is used for and moves
The half-wavelength of the antenna element working frequency range of communication.
Further, in array antenna 1, the spacing between the two neighboring antenna element for 5G mobile communication is equal to
5.35mm。
Seen from the above description, 5.35mm is the corresponding half-wavelength of 28GHz frequencies, is used for the antenna of 5G mobile communication at this time
Unit covers 28GHz frequency ranges (5G Antenna Operations frequency range).
Further, the quantity of the antenna element for 5G mobile communication is eight.
Seen from the above description, on metal edge frame, the antenna element for 5G mobile communication is in the array arrangement of 8x1.
Further, the feed line 23 is stepped.
Seen from the above description, the feed line being stepped adjusts the matching of antenna element convenient for manufacturer.
For the antenna element of 5G mobile communication, including feed element 2 and radiating element 3, feed element 2 includes pcb board
Dielectric layer 21, stratum 22 and feed line 23, feed line 23 are set to the bottom surface of pcb board dielectric layer 21, and stratum 22 is set to the pcb board
The top surface of dielectric layer 21；Radiating element 3 includes medium member 33 and feed radiation component 32, and it is separate that medium member 33 is set to the stratum 22
The top surface of the side of the pcb board dielectric layer 21, medium member 33 is equipped with becket 34, and medium member 33 is equipped with multiple vias 331,
The becket 34 is electrically connected with the stratum 22 by the via 331, and multiple vias 331 connect along the becket 34
At a circle an accommodating cavity 311 is collectively formed with stratum 22 in the medium member 33；The feed radiation component 32 in spike simultaneously
In the accommodating cavity 311, feed radiation component 32 includes the current feed department 321 formed by via and plate-like irradiation unit 322,
One end of current feed department 321 is connected with irradiation unit 322, and the other end of current feed department 321 is electrically connected with the feed line 23, irradiation unit
322 are set to the top surface of medium member 33 and are located in the accommodating cavity 311, first side 3221 and the metal of irradiation unit 322
Ring 34 is electrically connected.
Seen from the above description, this is the antenna list for being previously used for 5G mobile communication for the antenna element of 5G mobile communication
One deformation of member, the antenna element for being previously used for 5G mobile communication are arranged on the metal edge frame of array antenna, this is used for 5G
The antenna element of mobile communication is arranged on the control panel of the communication equipment of array antenna.
Further, the junction of current feed department 321 and irradiation unit 322 is close to the second side of the irradiation unit 322 3222
Setting, the first side 3221 of irradiation unit 322 and the second side 3222 of irradiation unit 322 are one group of opposite side of irradiation unit 322.
Embodiment one
Fig. 1 to Figure 10 is please referred to, the embodiment of the present invention one is：As shown in Figure 1 to Figure 3, array antenna 1 is set to communication
On the metal edge frame 100 of equipment, including N number of antenna element for 5G mobile communication, the antenna for 5G mobile communication
Unit is in the array arrangement of Nx1 on the metal edge frame 100；N is the integer more than 2, and the metalwork 31 is the metal
Frame 100.
In the present embodiment, metal edge frame 100 is three-stage frame, is specifically included：Left frame 101, left frame 102, top
Frame 103, lower frame 104 and metal medium plate 105, left frame 101 and left frame 102 are linked together by metal medium plate 105, on
Respectively with 105 gap setting of metal medium plate, the size in the gap is 0.5-2mm, preferred gap for frame 103 and lower frame 104
Size is 1mm；The quantity of the antenna element for 5G mobile communication is eight；The antenna list for 5G mobile communication
Member is in the array arrangement of 8x1 on the left frame 102.
The spacing of the two neighboring antenna element for 5G mobile communication is equal to the day for being used for 5G mobile communication
The half-wavelength of line cell operation frequency range.
It is two neighboring to be used for 5G mobile communication to allow array antenna 1 to cover 28GHz frequency ranges (27.5~28.35GHz frequency ranges)
Antenna element between spacing be equal to 5.35mm.
For the antenna element of 5G mobile communication, including feed element 2 and radiating element 3, feed element 2 includes pcb board
Dielectric layer 21, stratum 22 and feed line 23, feed line 23 are set to the top surface of pcb board dielectric layer, and stratum 22 is situated between set on the pcb board
The bottom surface of matter layer 21；Radiating element 3 includes metalwork 31 and feed radiation component 32, and metalwork 31 is far from pcb board dielectric layer 21
Side is equipped with accommodating cavity 311, and accommodating cavity 311 is equipped with accommodating hole 312 close to the side of pcb board dielectric layer 21；The feed radiation
Part 32 is in spike, and feed radiation component 32 includes the current feed department 321 that is in the form of a column and plate-like irradiation unit 322, and the one of current feed department 321
End is connected with irradiation unit 322, and the other end of current feed department 321 is electrically connected through the accommodating hole 312 with the feed line 23, radiation
Portion 322 is located in the accommodating cavity 311；The metalwork 31 is electrically connected with the stratum 22 and the irradiation unit 322 respectively.
It should be noted that in array antenna 1, it is for the metalwork 31 in the antenna element of 5G mobile communication
State metal edge frame 100.Preferably, the feed line 23 is stepped, i.e., feed line 23 is done so using more piece feed line 23
It is advantageous in that and does antenna match convenient for manufacturer.Current feed department 321 is not contacted with the internal perisporium of accommodating hole 312.
In the present embodiment, the section of accommodating cavity 311 is rectangular, and the section of accommodating hole 312 is rounded, at other
In embodiment, the section of the accommodating cavity 311 can also be rounded, triangle, the sides P shape (P is the integer more than 4)
Or other shapes.Similarly, the shape in the section of accommodating hole 312 does not also answer circumscribed.
The irradiation unit 322 and the tie point of the current feed department 321 are arranged close to the top surface of the irradiation unit 322, i.e. institute
The tie point for stating irradiation unit 322 and the current feed department 321 deviates the center of the irradiation unit 322 and close to the irradiation unit 322
Top setting (lower part of irradiation unit 322 is in direct contact with metalwork 31 and is electrically connected to realize).Preferably, the current feed department
321 are arranged perpendicular to the irradiation unit 322.
In order to improve the antenna element for 5G mobile communication structure stability, be equipped in the accommodating cavity 311 and use
It is equipped in the first filling member 41 of the fixation feed radiation component 32, the accommodating hole 312 for fixing the current feed department 321
The second filling member 42.The material of first filling member 41 is the low-losses such as improved PC (modified PC) or LCP (modified LCP)
Material；Alternatively, the material of the first filling member 41 is PC composite materials or LCP composite materials；In the present embodiment, the first filling member 41
Permittivity εrIt is 3, losstangenttanδ 0.002.Similarly, the second filling member 42 also may be selected by above-mentioned material system
At.
In the present embodiment, inventor to for 5G mobile communication antenna element and array antenna 1 to have carried out performance imitative
Very, wherein
The middle level dielectric layer of pcb board dielectric layer 21 uses ROGES RO4350B, thickness 0.25mm；
The size of metalwork 31 is as follows：Long 5.35mm, width 2.5mm, high 7mm；
The size of accommodating cavity 311 is as follows：Long 3mm, width 1.5mm, high 3.3mm；
The size of irradiation unit 322 is as follows：Long 2.2mm, width 0.5mm, high 1.2mm；
Spacing between the two neighboring antenna element for 5G mobile communication is equal to 5.35mm；
Fig. 4 is the return loss of the above-mentioned antenna element for 5G mobile communication, it can be well as we can see from the figure
Cover 28GHz (27.5GHz~28.35GHz) working frequency range；
Fig. 5 is the above-mentioned antenna element for 5G mobile communication in Phi=0 degree (i.e. the faces XOZ) and Phi=90 degree (i.e. YOZ
Face) when frequency be respectively 27.5GHz, 28GHz and 28.35GHz antenna pattern, as can be seen from the figure at different frequencies
For 5G mobile communication antenna element +Z direction gain close to 5dBi, antenna pattern in two planes all have compared with
Good consistency.
Fig. 6 is the S parameter of the array antenna on metal edge frame, and return loss is can see in figure and is individually moved for 5G
When the antenna element of communication approach, with adjacent array element be isolated angle value highest but be less than -15dB, then as therewith distance increase
Array element, isolation angle value therebetween is also gradually reduced.
Fig. 7 is for the array antenna on metal edge frame along the scanning in the directions Theta in frequency point 28GHz, in XOZ planes
Figure.It can be seen that compared with the single antenna element for 5G mobile communication, gain of the array antenna in +Z direction is from connecing
Nearly 5dBi increases to 13.5dBi or so.In addition, it may also be seen that when the array antenna is scanned in 0 to 60 degree
Back lobe will not increase too greatly, will not thus receive big interference signal, as scan angle increases antenna gain also normally
11.5dBi or so is gradually decreased to from 13.5dBi.In addition the scan pattern of other frequency points of the antenna in working frequency range with
It is similar when 28GHz, therefore do not repeat to list.It can be seen that, as scan angle increases, secondary lobe also can be with from the scanning figure of Fig. 7
Rising, spacing is the half-wavelength of 28GHz between the two neighboring antenna element for 5G mobile communication in the present embodiment, so
Even if its secondary lobe is relatively low when scan angle increases to 60 degree.Readily comprehensible, this is used for the antenna element of 5G mobile communication
Other 5G millimeter waves working bands are extended also to array, further, the above-mentioned antenna for 5G mobile communication
Unit can also be applied to other millimeter wave frequency bands, that is to say, that although this antenna element is named as 5G mobile communication
Antenna element, but the application of this antenna element should not be confined to 5G.
Fig. 8, Fig. 9 and Figure 10 are the 3-D scanning directional diagram of the array antenna on metal edge frame, scan angle is respectively 0 degree,
30 degree and 60 degree.The secondary lobe of antenna radiation pattern and back lobe be all relatively from figure it will be clear that in three kinds of scan angles
It is small.
The antenna element for 5G mobile communication of the present embodiment, size is small, processing is simple, covers 28GHz frequency ranges
(27.5~28.35GHz frequency ranges) can be that mobile terminal device (such as mobile phone, Wearable and PAD) offer future 5G is logical
The millimeter wave antenna array system of letter.
The array antenna of the present embodiment only needs a groove at side surface in metal edge frame 100, so that it may with simultaneously for filling
With feed radiation component 32 and aerial radiation, procedure of processing can be made less simpler in this way.And due to for 5G mobile communication
Antenna element size is less than wavelength, so the cell spacing of array antenna can be set as half-wavelength, in this way when scanning is to greatly
Angle when back lobe can be relatively lower.
Embodiment two
Figure 11 is please referred to, the embodiment of the present invention two is another antenna unit structure for being used for 5G mobile communication, and should
Antenna element for 5G mobile communication is a deformation of the antenna element in embodiment one for 5G mobile communication, with implementation
The antenna element for 5G mobile communication of example one the difference is that：The antenna list for 5G mobile communication of embodiment one
Member is arranged on the metal edge frame of communication equipment, and the antenna element setting for 5G mobile communication of the present embodiment is set in communication
On standby control panel.Specifically：For the antenna element of 5G mobile communication, including feed element 2 and radiating element 3, feed
Unit 2 includes pcb board dielectric layer 21, stratum 22 and feed line 23, and feed line 23 is set to the bottom surface of pcb board dielectric layer 21, stratum
22 are set to the top surface of the pcb board dielectric layer 21；Radiating element 3 includes medium member 33 and feed radiation component 32, and medium member 33 is set
In side of the stratum 22 far from the pcb board dielectric layer 21, the top surface of medium member 33 is equipped with becket 34, in medium member 33
Equipped with multiple vias 331, the becket 34 is electrically connected with the stratum 22 by the via 331, multiple vias 331
It is linked to be a circle along the becket 34 an accommodating cavity 311 is collectively formed with stratum 22 in the medium member 33；
For the feed radiation component 32 in spike and in the accommodating cavity 311, feed radiation component 32 includes by via shape
At current feed department 321 and plate-like irradiation unit 322, one end of current feed department 321 be connected with irradiation unit 322, current feed department 321 it is another
One end is electrically connected with the feed line 23, and irradiation unit 322 is set to the top surface of medium member 33 and in the accommodating cavity 311, spoke
The first side 3221 for penetrating portion 322 is electrically connected with the becket 34, and the junction of irradiation unit 322 and current feed department 321 is close to institute
The second side 3222 for stating irradiation unit 322 is arranged, the second side of the first side 3221 and irradiation unit 322 of irradiation unit 322
3222 be one group of opposite side of irradiation unit 322.
In the present embodiment, the via 331 is plated through-hole to realize being electrically connected for becket 34 and stratum 22；At it
In his embodiment, metal charge can be set in the via 331, the both ends of metal charge respectively with becket 34 and ground
Layer 22 is electrically connected.
Further, the feed line 23 is stepped.
Preferably, the current feed department 321 is arranged perpendicular to the irradiation unit 322
In conclusion provided by the present invention for the antenna element and array antenna of 5G mobile communication, it only need to be in metal edges
Feed radiation component can be realized in accommodating cavity assembly and aerial radiation are set on one side of frame, compared with the prior art in gold
Belong to and slotting on two sides of frame, structure is simpler, procedure of processing is less, is conducive to improve production efficiency, reduces movement eventually
The manufacturing cost of end equipment；5G millimeter wave antenna units occupancy metal edge frame lateralarea for mobile communication is small, to metal
The structural strength of frame influences smaller；Width of the 5G millimeter wave antennas unit in array orientation for mobile communication be
Half-wavelength conducive to isolation and the wide-angle scanning improved between unit and obtains low back lobe.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, include similarly
In the scope of patent protection of the present invention.
Claims (10)
1. for the antenna element of 5G mobile communication, including feed element and radiating element, it is characterised in that：Feed element includes
Pcb board dielectric layer, stratum and feed line, feed line are set to the top surface of pcb board dielectric layer, and stratum is set to the pcb board dielectric layer
Bottom surface；Radiating element includes metalwork and feed radiation component, and side of the metalwork far from pcb board dielectric layer is equipped with accommodating cavity,
Accommodating cavity is equipped with accommodating hole close to the side of pcb board dielectric layer；The feed radiation component is in spike, and feed radiation component includes in column
The current feed department of shape and plate-like irradiation unit, one end of current feed department are connected with irradiation unit, and the other end of current feed department runs through the appearance
It sets hole to be electrically connected with the feed line, irradiation unit is located in the accommodating cavity；The metalwork respectively with the stratum and described
Irradiation unit is electrically connected.
2. the antenna element according to claim 1 for 5G mobile communication, it is characterised in that：The irradiation unit with it is described
The tie point of current feed department is arranged close to the top surface of the irradiation unit.
3. the antenna element according to claim 1 for 5G mobile communication, it is characterised in that：It is equipped in the accommodating cavity
The first filling member for fixing the feed radiation component.
4. the antenna element according to claim 3 for 5G mobile communication, it is characterised in that：First filling member
Material is improved PC or LCP.
5. the antenna element according to claim 1 for 5G mobile communication, it is characterised in that：It is equipped in the accommodating hole
The second filling member for fixing the current feed department.
6. array antenna is set on metal edge frame, it is characterised in that：Include the use as described in any one of claim 1-5
It is N number of in the quantity of the antenna element of 5G mobile communication, the antenna element for 5G mobile communication, the 5G that is used for is moved
The antenna element of communication is in the array arrangement of Nx1 on the metal edge frame；N is the integer more than 2, and the metalwork is described
Metal edge frame.
7. array antenna according to claim 6, it is characterised in that：The two neighboring antenna for being used for 5G mobile communication
The spacing of unit is equal to the half-wavelength of the antenna element working frequency range for 5G mobile communication.
8. for the antenna element of 5G mobile communication, including feed element and radiating element, it is characterised in that：Feed element includes
Pcb board dielectric layer, stratum and feed line, feed line are set to the bottom surface of pcb board dielectric layer, and stratum is set to the pcb board dielectric layer
Top surface；Radiating element includes medium member and feed radiation component, and medium member is set to the stratum far from the pcb board dielectric layer
The top surface of side, medium member is equipped with becket, and medium member is equipped with multiple vias, and the becket passes through described with the stratum
Via is electrically connected, and multiple vias are linked to be a circle so that an appearance is collectively formed with stratum in the medium member along the becket
Set chamber；For the feed radiation component in spike and in the accommodating cavity, feed radiation component includes the current feed department formed by via
It is connected with irradiation unit with one end of plate-like irradiation unit, current feed department, the other end of current feed department is electrically connected with the feed line, spoke
Portion is penetrated set on the top surface of medium member and in the accommodating cavity, the first side of irradiation unit is electrically connected with the becket.
9. the antenna element according to claim 8 for 5G mobile communication, it is characterised in that：Current feed department and irradiation unit
Junction is arranged close to the second side of the irradiation unit, and the first side of irradiation unit and the second side of irradiation unit are irradiation unit
One group of opposite side.
10. the antenna element for 5G mobile communication according to claim 1 or 8, it is characterised in that：The feed line is in
Stairstepping.
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