CN106887722A - A kind of millimeter wave dual polarization slot antenna array - Google Patents
A kind of millimeter wave dual polarization slot antenna array Download PDFInfo
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- CN106887722A CN106887722A CN201710200806.9A CN201710200806A CN106887722A CN 106887722 A CN106887722 A CN 106887722A CN 201710200806 A CN201710200806 A CN 201710200806A CN 106887722 A CN106887722 A CN 106887722A
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- power splitter
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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
-
- 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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/064—Two dimensional planar arrays using horn or slot aerials
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
A kind of millimeter wave dual polarization slot antenna array is the embodiment of the invention provides, including：Antenna element layer, the first transmission network network layers and the second transmission network network layers being cascading；Wherein, antenna element layer includes the first slot antenna element of the first predetermined number, and the first slot antenna element is：The cross slot antenna element of semicircular in shape on four narrow side edges；Second transmission network network layers equiphase are coupled to the first transmission network network layers by the second electromagnetic wave for producing is uniform by the 3rd slot antenna element；First transmission network network layers, for producing first electromagnetic wave vertical with the second electromagnetic wave direction, and it is by the second slot antenna element that Dual-polarized electricity magnetic wave is uniform equiphase coupled to antenna element layer, antenna element layer, for by the first slot antenna element by Dual-polarized electricity electromagnetic wave radiation to free space.Using the embodiment of the present invention, the bandwidth of operation of aerial array is improve.
Description
Technical field
The present invention relates to the antenna technical field of wireless communication terminal, more particularly to a kind of millimeter wave dual polarization gap day
Linear array.
Background technology
With developing rapidly for multimedia technology and network technology, radio communication also quickly increases the demand of bandwidth.Pass
System low-frequency wireless frequency spectrum resource also gradually tends to saturation, and communication system can be expanded although with high order modulation or multiple access technology
Capacity, the raising availability of frequency spectrum, but the improvement to bandwidth is very limited.In order to further meet need of the communication terminal to bandwidth
Ask, realize high-speed wideband radio communication, the radio spectrum resources that exploitation certainly will be needed new.
In recent years, the research of the planar antenna array for being worked in millimeter wave band has attracted increasing pass
Note, millimeter wave is abundant due to its frequency spectrum resource, and wavelength is short, disturbs small, can realize the data exchange under high speed bandwidth, can be effective
Ground solves the problems faced in wireless access, therefore the millimeter wave antenna array with high-gain is for highly sensitive
Headend equipment realizes that high-speed radiocommunication is most important, and it has a wide range of applications in broadband wireless communications.
In the 5G standards drafted in the recent period, further requirement antenna realizes multiple-input, multiple-output (Multiple-Input
Multiple-Output, MIMO) function, serve the demand of multiple users simultaneously to meet.Dual-polarized antenna array can be with
Two users are serviced simultaneously with two cross-polarizations, therefore are the simplest modes for realizing MIMO functions.Current existing milli
Metric wave dual-polarized antenna array, is capable of achieving high-isolation, and with good cross polarization characteristics, although the aerial array can be with
Two users are serviced simultaneously, but by the antenna element layer of the aerial array uses the seam shape of slot antenna element equal
It is linear so that the length of electromagnetic wave to gap is fixed, causes its bandwidth of operation narrower.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of millimeter wave dual polarization slot antenna array, to improve aerial array
Bandwidth of operation.Concrete technical scheme is as follows：
A kind of millimeter wave dual polarization slot antenna array, including：
Antenna element layer, the first transmission network network layers and the second transmission network network layers being cascading；Wherein,
The antenna element layer includes the first slot antenna element of the first predetermined number, first slot antenna element
For：The cross slot antenna element of semicircular in shape on four narrow side edges；
The first surface of the first transmission network network layers is provided with the second slot antenna element, wherein, the first surface
For：The first transmission network network layers are near the surface of antenna element layer；
The second surface of the second transmission network network layers is provided with the 3rd slot antenna element, wherein, the second surface
For：The second transmission network network layers are near the surface of the first transmission network network layers；
The second transmission network network layers, for producing the second electromagnetic wave, and by the 3rd slot antenna element by institute
State the second electromagnetic wave uniform equiphase coupled to the first transmission network network layers；
The first transmission network network layers, for producing first electromagnetic wave vertical with the second electromagnetic wave direction, and lead to
Cross second slot antenna element Dual-polarized electricity magnetic wave is uniform equiphase coupled to antenna element layer, it is described bipolar
Changing electromagnetic wave is：First electromagnetic wave and the second electromagnetic waveforms into electromagnetic wave；
Antenna element layer, for by first slot antenna element by the Dual-polarized electricity electromagnetic wave radiation to from
By space.
Optionally, the antenna element layer includes：The first metal layer, the first medium substrate and second being cascading
Metal level, wherein, the first metal layer superposition is arranged at the first medium substrate away from the first transmission network network layers
Side, the second metal layer is relative with the first metal layer, and superposition is arranged at the first medium substrate near described the
The side of one transmission network network layers, the first slot antenna element of first predetermined number is located on the first metal layer, institute
State and be provided with second metal layer the 4th slot antenna element of the second predetermined number；
The first transmission network network layers include：The 3rd metal level, second medium substrate and the 4th gold medal being cascading
Category layer, wherein, the 3rd metal stacking is added and is placed in the second medium substrate near the side of antenna element layer, institute
State that the 4th metal level is relative with the 3rd metal level, superposition is arranged at the side away from antenna element layer, the described 3rd
Second predetermined number second slot antenna is provided with metal level, described the is provided with the 4th metal level
The 5th slot antenna element of two predetermined numbers；
The second transmission network network layers include：Fifth metal layer, the 3rd medium substrate and the 6th gold medal being cascading
Category layer, wherein, the fifth metal layer superposition is arranged at the 3rd medium substrate near the one of the first transmission network network layers
Side, the 6th metal level is relative with the fifth metal layer, and superposition is arranged at the side away from the first transmission network network layers,
Second predetermined number the 3rd slot antenna element is provided with the fifth metal layer；
3rd slot antenna element, for second electromagnetic wave to be coupled into the 5th slot antenna element；
Second slot antenna element, for the Dual-polarized electricity magnetic wave to be coupled into the 4th gap antenna element
Part.
Optionally, the first transmission network network layers, also include：First power splitter, first wave guide port and the first converter,
Wherein, first power splitter and the first converter are respectively arranged on the second medium substrate, the first wave guide port
It is arranged at the edge of the second medium substrate；
First converter is connected with the first wave guide port, for will enter via the first wave guide port
First incidence wave is converted into the first electromagnetic wave；
First power splitter, for equiphase being fed to each described second gap day by first electromagnetic wave is uniform
Kind of thread elements；
The second transmission network network layers, also include：Second power splitter, second waveguide port and the second converter, wherein, institute
State the second power splitter and the second converter is respectively arranged on the 3rd medium substrate, the second waveguide port is arranged at institute
State the edge of the 3rd medium substrate；
Second converter is connected with the second waveguide port, for will enter via the second waveguide port
Second incidence wave is converted into second electromagnetic wave vertical with the first electromagnetic wave direction；
Second power splitter, for equiphase being fed to each described 3rd gap day by second electromagnetic wave is uniform
Kind of thread elements.
Optionally, the antenna element layer is：The antenna array being made up of the second predetermined number antenna element submatrix
Row, wherein, each described antenna element submatrix is made up of the 3rd predetermined number first slot antenna element；
Second slot antenna element is corresponded with the 4th slot antenna element, each described second gap day
The straight line being centrally formed of the center of kind of thread elements the 4th slot antenna element corresponding with second slot antenna element perpendicular to
Plane where the second medium substrate；
4th slot antenna element is corresponded with the antenna element submatrix, each described 4th gap antenna element
The straight line being centrally formed of the center of part antenna element submatrix corresponding with the 4th slot antenna element is perpendicular to described first
Plane where medium substrate；
3rd slot antenna element is corresponded with the 5th slot antenna element, each described 3rd gap day
The straight line being centrally formed of the center of kind of thread elements the 5th slot antenna element corresponding with the 3rd slot antenna element perpendicular to
Plane where the second medium substrate；
5th slot antenna element is corresponded with second slot antenna element, each described 5th gap day
The straight line being centrally formed of the center of kind of thread elements the second slot antenna element corresponding with the 5th slot antenna element perpendicular to
Plane where the second medium substrate.
Optionally, second slot antenna element is cross gap antenna element with the 4th slot antenna element
Part, the 3rd slot antenna element is vertical bar shape slot antenna element with the 5th slot antenna element.
Optionally, first power splitter, for amplitude, equiphase electromagnetic waves such as outputs；
First power splitter includes：H types power splitter, T-shaped power splitter and same mutually T-shaped power splitter,
The input of the T-shaped power splitter is just right with the first wave guide port；
The T-shaped power splitter, for first electromagnetic wave to be input into described with mutually T-shaped power splitter by its output end
Input；
The same mutually T-shaped power splitter, for first electromagnetic wave to be input into the H types power splitter by its output end
Input.
Optionally, the H types power splitter is the power splitter of the output of an input four, including three sub- power splitters；
The T-shaped power splitter is the power splitter of the output of an input two, an including sub- power splitter；
Described is power splitter that an input two is exported with mutually T-shaped power splitter, including a sub- power splitter and is located at
The predetermined number metallized holes of the long-armed side of sub- power splitter.
Optionally, the sub- power splitter is made up of cylindrical metal hole.
Optionally, first electromagnetic wave is satisfied by TE with second electromagnetic wave10The single mode transport condition of mould.
Optionally, the material of the All Media layer in the aerial array is polytetrafluoroethylene (PTFE) sheet material.
It can be seen that, using technical scheme provided in an embodiment of the present invention, due to the slot antenna element that antenna element layer is used
Seam shape be：The cross slot antenna element of semicircular in shape on four narrow side edges so that electromagnetic wave arrives gap
Length change, so as to improve the bandwidth of operation of aerial array.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of millimeter wave dual polarization slot antenna array provided in an embodiment of the present invention；
Fig. 2 is a kind of structure of the antenna element layer of millimeter wave dual polarization slot antenna array provided in an embodiment of the present invention
Schematic diagram；
Fig. 3 is a kind of the first transmission network network layers of millimeter wave dual polarization slot antenna array provided in an embodiment of the present invention
Structural representation；
Fig. 4 is a kind of the second transmission network network layers of millimeter wave dual polarization slot antenna array provided in an embodiment of the present invention
Structural representation；
Fig. 5 is a kind of emulation testing of the S parameter of millimeter wave dual polarization slot antenna array provided in an embodiment of the present invention
Schematic diagram；
Fig. 6 is a kind of first wave guide port of millimeter wave dual polarization slot antenna array provided in an embodiment of the present invention
E- faces normalize the emulation testing schematic diagram of radiation direction；
Fig. 7 is a kind of first wave guide port of millimeter wave dual polarization slot antenna array provided in an embodiment of the present invention
H- faces normalize the emulation testing schematic diagram of radiation direction；
Fig. 8 is a kind of second waveguide port of millimeter wave dual polarization slot antenna array provided in an embodiment of the present invention
E- faces normalize the emulation testing schematic diagram of radiation direction；
Fig. 9 is a kind of second waveguide port of millimeter wave dual polarization slot antenna array provided in an embodiment of the present invention
H- faces normalize the emulation testing schematic diagram of radiation direction.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, the structure that Fig. 1 is a kind of millimeter wave dual polarization slot antenna array provided in an embodiment of the present invention is shown
It is intended to, millimeter wave dual polarization slot antenna array provided in an embodiment of the present invention, including：The antenna element layer being cascading
1st, the first transmission network network layers 2 and the second transmission network network layers 3；Wherein,
Antenna element layer 1 includes the first slot antenna element of the first predetermined number, and the first slot antenna element is：Four
The cross slot antenna element of semicircular in shape on narrow side edge；
The first surface of the first transmission network network layers 2 is provided with the second slot antenna element, wherein, first surface is：First
Transmission network network layers are near the surface of antenna element layer；
The second surface of the second transmission network network layers 3 is provided with the 3rd slot antenna element, wherein, second surface is：Second
Transmission network network layers are near the surface of the first transmission network network layers；
Second transmission network network layers 3, for producing the second electromagnetic wave, and by the 3rd slot antenna element by the second electromagnetic wave
It is uniformly equiphase to be coupled to the first transmission network network layers 2；
First transmission network network layers 2, for producing first electromagnetic wave vertical with the second electromagnetic wave direction, and by the second seam
Gap antenna element is uniform equiphase coupled to antenna element layer 1 by Dual-polarized electricity magnetic wave, and Dual-polarized electricity magnetic wave is：First electromagnetism
Ripple and the second electromagnetic waveforms into electromagnetic wave；
Antenna element layer 1, for by the first slot antenna element by Dual-polarized electricity electromagnetic wave radiation to free space.
Because the embodiment of the present invention only realizes Dual-polarized electricity magnetic wave by two-layer transmission network network layers, compared to prior art
Using multilayer transmission network network layers, for example, 5 layers of transmission network network layers or 20 layers of situation of transmission network network layers, can simplify aerial array
Hierarchical structure, reduce between transmission network network layers electromagnetic wave loss, be favorably improved the radiation gain of aerial array.
Specifically, as shown in figure 1, antenna element layer 1 includes：The first metal layer 11, first medium being cascading
Substrate 12 and second metal layer 13, wherein, the superposition of the first metal layer 11 is arranged at first medium substrate 12 away from the first transmission network
The side of network layers 2, second metal layer 13 is relative with the first metal layer 11, and superposition is arranged at first medium substrate 12 near the first feedback
The side of power network network layers 2, the first slot antenna element of the first predetermined number is located on the first metal layer 11, second metal layer 13
On be provided with the second predetermined number the 4th slot antenna element；
First transmission network network layers 2 include：The 3rd metal level 21, the gold medal of second medium substrate 22 and the 4th being cascading
Category layer 23, wherein, the 3rd metal level 21 is superimposed and is arranged at second medium substrate 22 near the side of antenna element layer 1, the 4th gold medal
Category layer 23 is relative with the 3rd metal level 21, and superposition is arranged at the side away from antenna element layer 1, is provided with the 3rd metal level 21
The second slot antenna of second predetermined number, is provided with the 5th slot antenna of the second predetermined number unit on the 4th metal level 23
Part；
Second transmission network network layers 3 include：Fifth metal layer 31, the 3rd medium substrate 32 and the 6th gold medal being cascading
Category layer 33, wherein, fifth metal layer 31 is superimposed and is arranged at the 3rd medium substrate 32 near the side of the first transmission network network layers 2, the
Six metal levels 33 are relative with fifth metal layer 31, and superposition is arranged at the side away from the first transmission network network layers 2, fifth metal layer 31
On be provided with the second predetermined number the 3rd slot antenna element；
3rd slot antenna element, for the second electromagnetic wave to be coupled into the 5th slot antenna element；Second slot antenna
Element, for Dual-polarized electricity magnetic wave to be coupled into the 4th slot antenna element.
It should be noted that the embodiment of the present invention is not limited the material of metal, for example, in actual applications, metal
Layer can be：On medium substrate surface copper facing and/or the top layer of gold-plated formation.
In a kind of specific embodiment, the material of the All Media layer in aerial array can be polytetrafluoroethylene (PTFE)
Sheet material, for example, because the material of Rogers's substrate layer is polytetrafluoroethylene (PTFE) sheet material, therefore, in actual applications, day can be designed
All Media layer in linear array is Rogers's substrate layer, i.e. first medium substrate 12, second medium substrate 22 and the 3rd
Medium substrate 32 is Rogers's substrate layer.
The loss of electromagnetic wave can be reduced due to Rogers's substrate layer, so, the All Media layer in aerial array is set
Rogers's substrate layer is set to, so that, reduce the electricity that the second electromagnetic wave enters the first transmission network network layers from the second transmission network network layers
Magnetic wave is lost, and reduces Dual-polarized electricity magnetic wave and enters the electromagnetic wave loss of antenna element layer from the first transmission network network layers, and subtracts
Dual-polarized electricity magnetic wave from the electromagnetic wave loss in antenna element layer freedom of entry space is lacked.
It should be noted that the embodiment of the present invention using Rogers's substrate as dielectric layer as a example by illustrate, only this hair
A bright instantiation, does not constitute limitation of the invention.In actual applications, dielectric layer material can be according to user's need
Set.
In order to produce Dual-polarized electricity magnetic wave, the first transmission network network layers 2 also include：First power splitter, first wave guide end
Mouth and the first converter, wherein, the first power splitter and the first converter are respectively arranged on second medium substrate, first wave guide end
Mouth is arranged at the edge of second medium substrate；Second transmission network network layers, also include：Second power splitter, second waveguide port and
Two converters, wherein, the second power splitter and the second converter are respectively arranged on the 3rd medium substrate, and second waveguide port is set
In the edge of the 3rd medium substrate；
First converter is connected with first wave guide port, and the first incidence wave for will enter via first wave guide port turns
Change the first electromagnetic wave into；
First power splitter, for equiphase being fed to each second slot antenna element by the first electromagnetic wave is uniform；
Second converter is connected with second waveguide port, and the second incidence wave for will enter via second waveguide port turns
Change second electromagnetic wave vertical with the first electromagnetic wave direction into；
Second power splitter, for equiphase being fed to each the 3rd slot antenna element by the second electromagnetic wave is uniform.
When aerial array works, the first incidence wave enters the first transmission network network layers by first wave guide port, by first
The effect of converter, the first electromagnetic wave is converted into by the first incidence wave, and the second incidence wave enters the second feedback by second waveguide port
Power network network layers, by the effect of the second converter, the second electromagnetism vertical with the first electromagnetic wave direction are converted into by the second incidence wave
Ripple, if for example, the first electromagnetic wave be vertical polarization electromagnetic wave, the second electromagnetic wave be horizontally-polarized electromagnetic wave；If the first electromagnetism
Ripple is horizontally-polarized electromagnetic wave, then the second electromagnetic wave is vertical polarization electromagnetic wave.
In order to improve the radiation gain of aerial array, preferably by Dual-polarized electricity electromagnetic wave radiation to free space, in one kind
In specific embodiment, antenna element layer is：The aerial array being made up of the second predetermined number antenna element submatrix, its
In, each antenna element submatrix is made up of the first slot antenna element of the 3rd predetermined number；
Second slot antenna element and the 4th slot antenna element are corresponded, the center of each the second slot antenna element
The straight line being centrally formed of the 4th slot antenna element corresponding with second slot antenna element is perpendicular to second medium substrate
Place plane；
4th slot antenna element and antenna element submatrix are corresponded, the center of each the 4th slot antenna element with should
The straight line being centrally formed of the corresponding antenna element submatrix of the 4th slot antenna element is perpendicular to flat where first medium substrate
Face；
3rd slot antenna element and the 5th slot antenna element are corresponded, the center of each the 3rd slot antenna element
The straight line being centrally formed of the 5th slot antenna element corresponding with the 3rd slot antenna element is perpendicular to second medium substrate
Place plane；
5th slot antenna element and the second slot antenna element are corresponded, the center of each the 5th slot antenna element
The straight line being centrally formed of the second slot antenna element corresponding with the 5th slot antenna element is perpendicular to second medium substrate
The plane at place.
Specifically, the 3rd metal-layer structure complete of the second metal layer of antenna element layer and the first transmission network network layers
Cause, the 4th metal level of the first transmission network network layers is completely the same with the fifth metal Rotating fields of the second transmission network network layers, Ke Yili
Xie Wei, the shape and number of the second slot antenna element on the 4th slot antenna element and the 3rd metal level in second metal layer
Amount is consistent, the shape of the 3rd slot antenna element in the 5th slot antenna element on the 4th metal level and fifth metal layer with
Quantity is consistent, for example, the second slot antenna element and the 4th slot antenna element can be cross slot antenna element, the
Three slot antenna elements and the 5th slot antenna element can be vertical bar shape slot antenna element.
The embodiment of the present invention is to antenna element submatrix, the second slot antenna element, the 3rd slot antenna element, the 4th gap
Antenna element, the concrete shape of the 5th slot antenna element and quantity are not limited.
As shown in Fig. 2 antenna element layer the first metal layer on be provided with 8x8 antenna array, between antenna element away from
From can be 0.68 wavelength.Wherein, 2x2 the first slot antenna element 111 constitutes a day for Unit four of symmetrical configuration
Kind of thread elements submatrix 112, and it is fed by the cross slot antenna element in the second metal layer of antenna element layer, cross
Slot antenna element is placed in the structure centre of the antenna element submatrix of Unit four, with ensure antenna array etc. amplitude equiphase present
Electricity.
As shown in figure 3, being provided with 16 cross slot antenna elements on the 3rd metal level of the first transmission network network layers
211, as shown in figure 4, being provided with 16 vertical bar shape slot antenna elements 311 in the fifth metal layer of the second transmission network network layers.
Operationally, be coupled to for the second electromagnetic wave by the 3rd slot antenna element for aerial array provided in an embodiment of the present invention
5th slot antenna element, so that the second electromagnetic wave enters the first transmission network network layers from the second transmission network network layers；This second
The first electromagnetic wave collective effect that electromagnetic wave and the first transmission network network layers are produced, forms Dual-polarized electricity magnetic wave, the second slot antenna
Element, the 4th slot antenna element is coupled to by the Dual-polarized electricity magnetic wave, so that so that Dual-polarized electricity magnetic wave is from the first transmission network
Network layers enter antenna element layer, and then, free space is radiated to by the first slot antenna element of antenna element layer.
In order that the first power splitter such as can export at amplitude, equiphase electromagnetic wave, as shown in figure 3, the first power splitter bag
Include：H types power splitter 41, T-shaped power splitter 42 and same mutually T-shaped power splitter 43, input and the first wave guide end of T-shaped power splitter 42
Mouth 5 is just right；T-shaped power splitter 42, for the first electromagnetic wave to be input into the input with mutually T-shaped power splitter 43 by its output end
End；With mutually T-shaped power splitter 43, for the first electromagnetic wave being input into by its output end to the input of H types power splitter 41.
Specifically, H types power splitter can be the power splitter of the output of an input four, including three sub- power splitters；T-shaped power splitter
Can be the power splitters of the output of an input two, an including sub- power splitter；Can be the output of an input two with mutually T-shaped power splitter
Power splitter, including a sub- power splitter and the predetermined number metallized holes positioned at the long-armed side of sub- power splitter.
Sub- power splitter is made up of cylindrical metal hole, as shown in figure 3, sub- power splitter is formed by multiple metallized holes
A wedge angle, the output end composition that is formed of the input that is formed of metallized holes and two metallized holes.Wherein,
Can be by adding six metallized holes in the passage of long-armed side with the realization of mutually T-shaped power splitter 43.Due to H type work(
Divide device 41, T-shaped power splitter 42 and constituted by sub- power splitter with mutually T-shaped power splitter 43 so that the first power divider structure is simple,
It is easy to design and realizes.
In a specific embodiment, as shown in figure 3, the first power splitter is 1 point 16 of power splitter, including a T
Type power splitter 41, two with mutually T-shaped power splitter 42 and four H types power splitters 43.Wherein, T-shaped power splitter and same mutually T-shaped power splitter
Be an input two output etc. amplitude equiphase power divider, H type power splitters be an input four output etc. amplitude equiphase work(
After dividing device, the first incidence wave to enter from first wave guide port 5, after the first converter is converted into the first electromagnetic wave, the first electricity
Magnetic wave first passes through T-shaped power splitter and is divided into two, then is divided into four parts with mutually T-shaped power splitter by two, then by four H types work(point
Device is divided into 16 parts, during work(point, because each power splitter such as is at the amplitude equiphase power divider, so as to ensure that first
Electromagnetic wave uniform same-phase is divided into 16 parts.
Similar, as shown in figure 4, the second power splitter is corresponding with the first power splitter, the second power splitter is：One point 16 of work(point
Device, including：Four H types power splitters 61, a T-shaped power splitter 62 and two with mutually T-shaped power splitters 63, T-shaped power splitter 62 it is defeated
Enter end just right with second waveguide port 7.Annexation description between specific each power splitter is referred to above-mentioned to the first work(
Divide the description section of device, will not be repeated here.
Due to TE10The cutoff wavelength of mould is most long, and in general, substrate integration wave-guide transmission is all TE10Mould, therefore, can
With according to single mode transport condition, the width of design first wave guide port and the width of second waveguide port so that the first electromagnetism
Ripple and the second electromagnetic wave are satisfied by TE10The single mode transport condition of mould.Specifically, according to single mode transport condition design first wave guide end
The method of the width of mouth and the width of second waveguide belongs to prior art, and the embodiment of the present invention will not be repeated here.
It can be seen that, using technical scheme provided in an embodiment of the present invention, due to the slot antenna element that antenna element layer is used
Seam shape be：The cross slot antenna element of semicircular in shape on four narrow side edges so that electromagnetic wave arrives gap
Length change, so as to improve the bandwidth of operation of antenna.
Fig. 5 is a kind of emulation testing of the S parameter of millimeter wave dual polarization slot antenna array provided in an embodiment of the present invention
Schematic diagram, in general, the wideband operation requirement of aerial array is：57-65GHz, it can be seen that provided in an embodiment of the present invention
Aerial array in the state of extrinsic motivated, S11 (return loss of first wave guide port) in the frequency range of 56-66GHz and
The emulation of S22 (return loss of second waveguide port) and measurement parameter are held at below -10dB, so as to demonstrate the present invention
The aerial array that embodiment is provided improves bandwidth of operation.In addition, aerial array provided in an embodiment of the present invention is in extrinsic motivated
In the state of, the emulation and measurement of the S12 parameters (isolation of first port and second port) in the frequency range of 50-70GHz
Parameter is held at below -30dB, it was demonstrated that had between two polarized electromagnetic waves of aerial array provided in an embodiment of the present invention
There is good isolation.
Reference picture 6-9, it can be seen that aerial array provided in an embodiment of the present invention frequency range near 60GHz, first wave guide
The E- faces of the E- faces of port, the directionality of H- faces normalization radiation direction, and second waveguide port, H- faces normalization radiation side
To directionality be attained by more than 20dB, it was demonstrated that aerial array provided in an embodiment of the present invention has a good directionality.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including key element.
Each embodiment in this specification is described by the way of correlation, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.Especially for system reality
Apply for example, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
Presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention.It is all in this hair
Any modification, equivalent substitution and improvements made within bright spirit and principle etc., are all contained in protection scope of the present invention.
Claims (10)
1. a kind of millimeter wave dual polarization slot antenna array, it is characterised in that including：
Antenna element layer, the first transmission network network layers and the second transmission network network layers being cascading；Wherein,
The antenna element layer includes the first slot antenna element of the first predetermined number, and first slot antenna element is：
The cross slot antenna element of semicircular in shape on four narrow side edges；
The first surface of the first transmission network network layers is provided with the second slot antenna element, wherein, the first surface is：Institute
The first transmission network network layers are stated near the surface of antenna element layer；
The second surface of the second transmission network network layers is provided with the 3rd slot antenna element, wherein, the second surface is：Institute
The second transmission network network layers are stated near the surface of the first transmission network network layers；
The second transmission network network layers, for producing the second electromagnetic wave, and by the 3rd slot antenna element by described
Two electromagnetic waves are uniform equiphase coupled to the first transmission network network layers；
The first transmission network network layers, for producing first electromagnetic wave vertical with the second electromagnetic wave direction, and by institute
State the second slot antenna element Dual-polarized electricity magnetic wave is uniform equiphase coupled to antenna element layer, the Dual-polarized electricity
Magnetic wave is：First electromagnetic wave and the second electromagnetic waveforms into electromagnetic wave；
Antenna element layer, for by first slot antenna element by the Dual-polarized electricity electromagnetic wave radiation to free sky
Between.
2. aerial array according to claim 1, it is characterised in that
The antenna element layer includes：The first metal layer, first medium substrate and the second metal layer being cascading, its
In, the first metal layer superposition is arranged at side of the first medium substrate away from the first transmission network network layers, described
Second metal layer is relative with the first metal layer, and superposition is arranged at the first medium substrate near first feeding network
The side of layer, the first slot antenna element of first predetermined number is located on the first metal layer, second metal
The 4th slot antenna element of the second predetermined number is provided with layer；
The first transmission network network layers include：The 3rd metal level, second medium substrate and the 4th metal level being cascading,
Wherein, the 3rd metal stacking is added and is placed in the second medium substrate near the side of antenna element layer, described the
Four metal levels are relative with the 3rd metal level, and superposition is arranged at the side away from antenna element layer, the 3rd metal
Second predetermined number, second slot antenna is provided with layer, described second is provided with the 4th metal level pre-
If the 5th slot antenna element of quantity；
The second transmission network network layers include：Fifth metal layer, the 3rd medium substrate and the 6th metal level being cascading,
Wherein, the fifth metal layer superposition is arranged at the 3rd medium substrate near the side of the first transmission network network layers, institute
State that the 6th metal level is relative with the fifth metal layer, superposition is arranged at the side away from the first transmission network network layers, described
Second predetermined number the 3rd slot antenna element is provided with fifth metal layer；
3rd slot antenna element, for second electromagnetic wave to be coupled into the 5th slot antenna element；
Second slot antenna element, for the Dual-polarized electricity magnetic wave to be coupled into the 4th slot antenna element.
3. aerial array according to claim 2, it is characterised in that the first transmission network network layers, also includes：First work(
Point device, first wave guide port and the first converter, wherein, first power splitter and the first converter are respectively arranged at described the
On second medium substrate, the first wave guide port is arranged at the edge of the second medium substrate；
First converter is connected with the first wave guide port, for will enter via the first wave guide port first
Incidence wave is converted into the first electromagnetic wave；
First power splitter, for equiphase being fed to each described second slot antenna unit by first electromagnetic wave is uniform
Part；
The second transmission network network layers, also include：Second power splitter, second waveguide port and the second converter, wherein, described
Two power splitters and the second converter are respectively arranged on the 3rd medium substrate, and the second waveguide port is arranged at described
The edge of three medium substrates；
Second converter is connected with the second waveguide port, for will enter via the second waveguide port second
Incidence wave is converted into second electromagnetic wave vertical with the first electromagnetic wave direction；
Second power splitter, for equiphase being fed to each described 3rd slot antenna unit by second electromagnetic wave is uniform
Part.
4. the aerial array according to claim any one of 2-3, it is characterised in that
Antenna element layer is：The aerial array being made up of the second predetermined number antenna element submatrix, wherein, each
The antenna element submatrix is made up of the 3rd predetermined number first slot antenna element；
Second slot antenna element is corresponded with the 4th slot antenna element, each described second slot antenna unit
The straight line being centrally formed of the center of part the 4th slot antenna element corresponding with second slot antenna element is perpendicular to described
Plane where second medium substrate；
4th slot antenna element is corresponded with the antenna element submatrix, each the 4th slot antenna element
The straight line being centrally formed of center antenna element submatrix corresponding with the 4th slot antenna element is perpendicular to the first medium
Plane where substrate；
3rd slot antenna element is corresponded with the 5th slot antenna element, each described 3rd slot antenna unit
The straight line being centrally formed of the center of part the 5th slot antenna element corresponding with the 3rd slot antenna element is perpendicular to described
Plane where second medium substrate；
5th slot antenna element is corresponded with second slot antenna element, each described 5th slot antenna unit
The straight line being centrally formed of the center of part the second slot antenna element corresponding with the 5th slot antenna element is perpendicular to described
Plane where second medium substrate.
5. the aerial array according to claim any one of 2-4, it is characterised in that
Second slot antenna element is cross slot antenna element, the described 3rd with the 4th slot antenna element
Slot antenna element is vertical bar shape slot antenna element with the 5th slot antenna element.
6. aerial array according to claim 3, it is characterised in that
First power splitter, for amplitude, equiphase electromagnetic waves such as outputs；
First power splitter includes：H types power splitter, T-shaped power splitter and same mutually T-shaped power splitter,
The input of the T-shaped power splitter is just right with the first wave guide port；
The T-shaped power splitter, for first electromagnetic wave to be input into described with the defeated of mutually T-shaped power splitter by its output end
Enter end；
It is described with mutually T-shaped power splitter, it is defeated to the H types power splitter for being input into first electromagnetic wave by its output end
Enter end.
7. aerial array according to claim 6, it is characterised in that the H types power splitter is the work(of the output of an input four
Divide device, including three sub- power splitters；
The T-shaped power splitter is the power splitter of the output of an input two, an including sub- power splitter；
Described is power splitter that an input two is exported with mutually T-shaped power splitter, including a sub- power splitter and positioned at described
The predetermined number metallized holes of the sub- long-armed side of power splitter.
8. aerial array according to claim 7, it is characterised in that
The sub- power splitter is made up of cylindrical metal hole.
9. aerial array according to claim 1, it is characterised in that first electromagnetic wave is equal with second electromagnetic wave
Meet TE10The single mode transport condition of mould.
10. aerial array according to claim 1, it is characterised in that the material of the All Media layer in the aerial array
Material is polytetrafluoroethylene (PTFE) sheet material.
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| CN108550981A (en) * | 2018-04-03 | 2018-09-18 | 北京理工大学 | Work in TM210The W-waveband dual polarization slot antenna and feeding network of mode of resonance |
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