CN108598682A - A kind of array antenna generating multi-modal vortex electromagnetic wave - Google Patents
A kind of array antenna generating multi-modal vortex electromagnetic wave Download PDFInfo
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- CN108598682A CN108598682A CN201810498336.3A CN201810498336A CN108598682A CN 108598682 A CN108598682 A CN 108598682A CN 201810498336 A CN201810498336 A CN 201810498336A CN 108598682 A CN108598682 A CN 108598682A
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- bidirectional power
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- power distributor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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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
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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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The array antenna disclosed by the invention for generating multi-modal vortex electromagnetic wave is related to wireless communication technology field, including underlying dielectric plate, top layer dielectric-slab, 1 bidirectional power distributor of N, microstrip line and N+1 radiating element, wherein N+1 radiating element include：N+1 driving patch and N+1 parasitic patch, each radiating element include a driving patch and a parasitic patch, N=2n, n is the integer more than or equal to 2.Wherein, 1 bidirectional power distributor of N is connect with N+1 driving patch by microstrip line respectively respectively, bidirectional power distributor, microstrip line and N+1 driving patch may be contained within the upper surface of underlying dielectric plate, N+1 parasitic patch is corresponding with N+1 driving patch and is set to the lower surface of top layer dielectric-slab, simplify the workflow of existing array antenna so that the array antenna is easy to use and can generate multiple mode vortex electromagnetic waves.
Description
Technical field
The invention belongs to wireless communication technology fields, and in particular to a kind of array day generating multi-modal vortex electromagnetic wave
Line.
Background technology
With the rapid development of wireless communication technique, new business continues to bring out, and limited frequency spectrum resource can not
Meets the needs of people.Due to the finiteness, exclusivity and scarcity of radio spectrum resources, wireless communication skill is significantly limited
Thus how the development of art improves frequency spectrum resource utilization rate as current communications field focus of interest, people are first thus
After propose a variety of multiplexing technologies such as time division multiple acess TDMA, CDMA CDMA, orthogonal frequency division multiplex OFDM to improve wireless frequency
The utilization rate of spectrum.However, traditional wireless communication technique is mainly passed in the form of the amplitude of signal, phase, frequency etc. into row information
It is defeated, and in same time, same code domain frequency band can only transmission of one line information, therefore propose the vortex with orbital angular momentum
Electromagnetic wave technology meets the needs of following mobile data.
Orbital angular momentum vortex wave had obtained extensive research and application in recent years, however radio frequency and wireless communication field
Research relatively lags behind with application.Vortex electromagnetic wave is a kind of electromagnetic wave for being different from common plane wave, and plane wave only has spin angle
Momentum, and not only there is vortex wave spin angular momentaum, also orbital angular momentum, its equiphase surface to carry track angle due to wave beam
Momentum and be spirally distributed, be different with the equiphase plane of plane wave.Until 2007, the B.Thide of Sweden etc. was logical
It crosses and is successfully applied to Radio-Frequency Wireless Communication field with the method that array antenna generates orbital angular momentum, so far OAM electromagnetism
The application of rotational field in wireless communications just gradually becomes current research hotspot.Up to the present, for generating track angular motion
The mode for measuring wave beam includes mainly using rotatable phase plate, spiral paraboloid and array antenna.
In above-mentioned several method, for rotatable phase plate in the most widely used of optical band, feature is theoretical and structure
Simply, can be encouraged with dual polarization, transfer efficiency is higher, but in frequency microwave wave band, due to its generation Angle of beam divergence compared with
Greatly, the problems such as emission effciency and scheme are complicated can be reduced to the reflection of wave beam and limit it by being unfavorable for transmission, dielectric-slab at a distance
In the extensive use of frequency microwave wave band.And spiral paraboloid is then by the way that existing parabola antenna is bent spiral into spiral
Curved surface is acted on using paraboloidal convergence, the microwave orbital angular momentum wave beam of diverging is converged to generate orbital angular momentum wave beam,
But this structure is difficult to generate the orbital angular momentum vortex wave beam of multiple mode, and unstability is strong, is not easy to make.
Array antenna technique has obtained extensive research in recent years, and is applied to many fields, such as communication, sensing, energy
Collection, radar etc. are measured, this also provides preferable reason to carry the vortex wave beam of orbital angular momentum using array antenna generation
By and practical basis.Such as application publication number is 106058490 A of CN, entitled " a method of generating vortex electromagnetic wave "
Patent application, disclose it is a kind of using array element sum be N array antenna generate vortex electromagnetic wave method.This method passes through
Array element number and array element arrangement mode are adjusted to generate the vortex electromagnetic wave of different modalities.Although this method array element form is not
Limit, array arrangement mode is flexible, but this method needs equal to each array element application amplitude and differs the excitation of particular phases, this
It a little is difficult to preferably realize by existing physical equipment, and multiple mode vortex electromagnetic waves can not be generated simultaneously.
Therefore, it is to compel at present that research and design, which goes out antenna that is easy to use and can generating multiple mode vortex electromagnetic waves simultaneously,
It is essential and wants.
Invention content
In view of the above-mentioned problems, the embodiment of the present invention proposes a kind of array antenna generating multi-modal vortex electromagnetic wave.
To achieve the above object, using following scheme：
A kind of array antenna generating multi-modal vortex electromagnetic wave provided in an embodiment of the present invention include underlying dielectric plate,
Top layer dielectric-slab, N-1 bidirectional power distributor, microstrip line and N+1 radiating element, wherein N+1 radiating element include：N
+ 1 driving patch and N+1 parasitic patch, each radiating element include a driving patch and a parasitic patch, N=2n,
N is the integer more than or equal to 2；Wherein,
N-1 bidirectional power distributor is connect with N+1 driving patch by microstrip line respectively respectively, bidirectional power distribution
Device, microstrip line and N+1 driving patch may be contained within the upper surface of underlying dielectric plate, and N+1 parasitic patch is pasted with N+1 driving
Piece is corresponding and is set to the lower surface of top layer dielectric-slab.
Preferably, in N+1 radiating element, N number of radiating element is uniformly arranged on the circumference that radius is λ, for producing
Raw 1 mode vortex electromagnetic wave；1 radiating element is set to the center of circumference, for generating 0 mode vortex electromagnetic wave,
In, λ is the wavelength of electromagnetic wave.
Preferably, N+1 drives patch and N+1 parasitic patch square, the side ratio N+1 drivings of N+1 parasitic patch
The big 2~4mm of the length of side of patch and N+1 driving patch the length of side beWherein, c is the light velocity, and f is signal frequency
Rate, εrFor dielectric constant.
Preferably, it is 0.5~2.5mm that underlying dielectric plate and top layer dielectric-slab, which are thickness, and dielectric constant is 3.2~3.6
Plank.
Preferably, the spacing distance between top layer dielectric-slab and underlying dielectric plate is 3~5mm.
Preferably, N-1 bidirectional power distributor includes the bidirectional power distributor for being divided into n grade, wherein
First order bidirectional power distributor is to the microstrip line length difference Δ between two bidirectional power distributors of the second level
d1=λ/2, the microstrip line length difference Δ d between two bidirectional power distributors of second level bidirectional power distributor to the third level2
=λ/4, third level bidirectional power distributor is to λ/8 microstrip line length difference Δ d3=between two neighboring driving patch, successively
Analogize, n-th grade of bidirectional power distributor to the microstrip line length difference Δ d between two driving patches adjacent thereton=λ/N,
Wherein, λ is the wavelength of electromagnetic wave.
Compared with prior art, the present invention haing the following advantages：
(1) due to the embodiment of the present invention use with specific interval two-layered medium plate, and devise driving patch and
Parasitic patch, thus there is broader bandwidth compared with other antennas.
(2) since the embodiment of the present invention uses the feed being made of multistage bidirectional power divider and specific length microstrip line
Network realizes the phase offset of analog domain signal, therefore requires signal generating apparatus low, it is easy to accomplish, and generate
Vortex electromagnetic wave effect is more stablized.
(3) since the embodiment of the present invention uses multi-modal antenna nesting arrangement mode, multiple mode can be generated simultaneously
Vortex electromagnetic wave.
Description of the drawings
Fig. 1 is the overall structure signal of the array antenna provided in an embodiment of the present invention for generating multi-modal vortex electromagnetic wave
Figure；
Fig. 2 is that the underlying dielectric of the array antenna provided in an embodiment of the present invention for generating multi-modal vortex electromagnetic wave is hardened
Structure schematic diagram；
Fig. 3 is that the top layer medium of the array antenna provided in an embodiment of the present invention for generating multi-modal vortex electromagnetic wave is hardened
Structure schematic diagram；
Fig. 4 is the structural representation of another array antenna for generating multi-modal vortex electromagnetic wave provided in an embodiment of the present invention
Figure；
Fig. 5 is by emulating the obtained array antenna provided in an embodiment of the present invention for generating multi-modal vortex electromagnetic wave
S11 parameter schematic diagrames；
Fig. 6 is by emulating the obtained main polarization direction whirlpool of 0 mode of array antenna for generating multi-modal vortex electromagnetic wave
Revolve electromagnetic wave electric field phase distribution character figure；
Fig. 7 is the main polarization direction vortex of 1 mode of array antenna for obtaining to generate multi-modal vortex electromagnetic wave by emulation
Electromagnetic wave electric field phase distribution character figure.
Specific implementation mode
The present invention is further elaborated below in conjunction with the accompanying drawings.
Referring to Fig.1, the array antenna provided in an embodiment of the present invention for generating multi-modal vortex electromagnetic wave includes：Bottom is situated between
Scutum 1, top layer dielectric-slab 2, bidirectional power distributor 3, microstrip line 4, first input end 8, the second input terminal 9 and N+1 radiation
Unit, wherein underlying dielectric plate 1 and top layer dielectric-slab 2 are supported with gasket 7 therebetween, and the N+1 radiating element includes：N
+ 1 driving patch 6 and N+1 parasitic patch 5, each radiating element include a driving patch 6 and a parasitic patch 5, N
=2n, n is the integer more than or equal to 2；Wherein,
The N-1 bidirectional power distributor 3 is connected with described N+1 driving patch 6 by the microstrip line 4 respectively respectively
It connects, the bidirectional power distributor 3, the microstrip line 4 and the N+1 driving patch 6 may be contained within the underlying dielectric plate 2
Upper surface, the location of described N+1 parasitic patch 5 be corresponding with described N+1 6 location of driving patch respectively
And it is set to the lower surface of the top layer dielectric-slab 2.
In one example, as shown in Fig. 2, taking n=3, N=2n=8, which includes 9 parasitic patch and 9
Drive patch.
In one example, as shown in figure 3, parasitic patch 5 and driving patch 6 share 9.With reference to Fig. 3, in top layer medium
It is etched with parasitic patch 5 on plate 2 and shares 9, wherein there are 8 parasitic patch to be evenly arranged on the circumference that radius is λ, 1 is posted
Raw patch is etched in the center location of the circle, wherein λ is the wavelength of electromagnetic wave.When installing antenna, underlying dielectric plate 1 and top
The etching layer of layer dielectric-slab 2 opposite will be installed, i.e., parasitic patch 5 is corresponded with the position of driving patch 6.
Optionally, in the N+1 radiating element, N number of radiating element is uniformly arranged on the circumference that radius is λ, is used
In 1 mode vortex electromagnetic wave of generation；1 radiating element is uniformly arranged on the center of the circumference, for generating 0 mode whirlpool
Revolve electromagnetic wave, wherein λ is the wavelength of electromagnetic wave.
Wherein, signal is transferred to 8 driving patches on circumference by first input end 8 all the way, and another way signal then leads to
The driving patch 6 that the second input terminal 9 is transferred to center location is crossed, to realize the need of energy while 0 mode and 1 mode vortex electromagnetic wave
It asks.
Optionally, the N+1 driving patches 6 and the N+1 parasitic patch 5 are square, the N+1 parasitic patch
Described in side ratio N+1 drive patch the big 2~4mm of the length of side and the N+1 driving patch the length of side be
Wherein, c is the light velocity, and f is signal frequency, εrFor dielectric constant.
Optionally, it is 0.5~2.5mm that the underlying dielectric plate and the top layer dielectric-slab, which are thickness, and dielectric constant is
3.2~3.6 plank.
Optionally, the spacing distance between the top layer dielectric-slab 2 and underlying dielectric plate 1 is 3~5mm.
In one example, the spaced h between driving patch 6 and parasitic patch 5 can be such that antenna has broader
Working band.In actual assembled, specific range is formed by the way that gasket 7 is added between top layer dielectric-slab and underlying dielectric plate
Gap, h value ranges are 3~5mm, in the embodiment of the present invention, take h=4mm.
Optionally, the N-1 bidirectional power distributor includes the bidirectional power distributor for being divided into n grade, wherein
First order bidirectional power distributor 3 arrives the microstrip line length difference between two bidirectional power distributors 3 of the second level
Δd1=λ/2, second level bidirectional power distributor 3 arrive the micro-strip line length between two bidirectional power distributors 3 of the third level
Poor Δ d2=λ/4, third level bidirectional power distributor 3 to the microstrip line length difference Δ d3=between two neighboring driving patch 6
λ/8, and so on, n-th grade of bidirectional power distributor 3 to the microstrip line length difference between two driving patches 3 adjacent thereto
Δdn=λ/N, to obtain required phase difference.
In one example, as shown in Fig. 2, the array antenna includes：7 T-shaped bidirectional power distributors 3 and microstrip line
4, this 7 bidirectional power distributors size having the same, structure and function, and there is specific polarization direction.It is each T-shaped
The branch of bidirectional power distributor 3 and the line width of trunk are consistent, and signal averaging is divided into two equal identical letters of power
Number.These bidirectional power distributors 3 divide three-level to drive patch to connect with eight by microstrip line 4, wherein：
The 2nd grade of bidirectional power that signal is distributed to left and right ends through microstrip line 4 by the 1st grade of bidirectional power distributor 3a distributes
Device 3b；Signal is distributed to two 3rd level bidirectional power distributor 3c up and down by the 2nd grade of bidirectional power distributor 3b through microstrip line 4；
Signal is assigned to 8 driving patches 6 by 3rd level bidirectional power distributor 3c through microstrip line 4.
In one example, since driving patch 6 needs the vortex electromagnetic wave of 1 mode of generation, therefore two neighboring driving is pasted
The phase difference generated between piece should be 2 π/N, wherein N=2n, n=3.
With reference to Fig. 4, in order to 50 ohms impedance match, it is each that patch is driven to be connected with L-type impedance matching line, wherein chain
The length L of the vertical line on road1=5mm, the length L of the horizontal line of link2=9.6mm.
The effect that array antenna provided in an embodiment of the present invention can generate can be further illustrated by following emulation：
As shown in figure 5, the parameter S of array antenna provided in an embodiment of the present invention11It is the left sides 1GHz in -10dB ranges below
The right side, i.e., the frequency band that the array antenna can work is in 1GHz or so.
Fig. 6 is the electric field phase of the main polarization direction signal of 0 mode caused by array antenna provided in an embodiment of the present invention
Distribution character, from fig. 6, it can be seen that array antenna provided in an embodiment of the present invention can tell on, preferable 0 mode is vortexed electric
Magnetic wave beam.
Fig. 7 is the electric field phase of the main polarization direction signal of 1 mode caused by array antenna provided in an embodiment of the present invention
Distribution character, from figure 7 it can be seen that array antenna provided in an embodiment of the present invention can tell on, preferable 1 mode is vortexed electric
Magnetic wave beam.
Wherein, the array antenna provided in an embodiment of the present invention for generating multi-modal vortex electromagnetic wave is not limited to only generate
0, the vortex electromagnetic wave of 1 two mode can also continue to expansion according to this design and obtain multiple moulds on the basis of the design
The nested structure of state vortex electromagnetic wave.
The array antenna provided in an embodiment of the present invention for generating multi-modal vortex electromagnetic wave, including underlying dielectric plate, top
Layer dielectric-slab, N-1 bidirectional power distributor, microstrip line and N+1 radiating element, wherein N+1 radiating element include：N+1
A driving patch and N+1 parasitic patch, each radiating element include a driving patch and a parasitic patch, N=2n, n
For the integer more than or equal to 2.Wherein, N-1 bidirectional power distributor is connected with N+1 driving patch by microstrip line respectively respectively
It connects, bidirectional power distributor, microstrip line and N+1 driving patch may be contained within the upper surface of underlying dielectric plate, N+1 parasitic patch
Piece is corresponding with N+1 driving patch and is set to the lower surface of top layer dielectric-slab, simplifies the workflow of existing array antenna
Journey so that the array antenna is easy to use and can generate multiple mode vortex electromagnetic waves.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
It is understood that the correlated characteristic in the above method and device can be referred to mutually.In addition, in above-described embodiment
" first ", " second " etc. be and not represent the quality of each embodiment for distinguishing each embodiment.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
Algorithm and display be not inherently related to any certain computer, virtual system or miscellaneous equipment provided herein.
Various general-purpose systems can also be used together with teaching based on this.As described above, it constructs required by this kind of system
Structure be obvious.In addition, the present invention is not also directed to any certain programmed language.It should be understood that can utilize various
Programming language realizes the content of invention described herein, and the description done above to language-specific is to disclose this hair
Bright preferred forms.
In addition, memory may include the volatile memory in computer-readable medium, random access memory
(RAM) and/or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM), memory includes extremely
A few storage chip.
It should be understood by those skilled in the art that, embodiments herein can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, the application can be used in one or more wherein include computer usable program code computer
The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The application is with reference to method, the flow of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
In a typical configuration, computing device includes one or more processors (CPU), input/output interface, net
Network interface and memory.
Memory may include computer-readable medium in volatile memory, random access memory (RAM) and/
Or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable Jie
The example of matter.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology realizes information storage.Information can be computer-readable instruction, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), fast flash memory bank or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM),
Digital versatile disc (DVD) or other optical storages, magnetic tape cassette, tape magnetic disk storage or other magnetic storage apparatus
Or any other non-transmission medium, it can be used for storage and can be accessed by a computing device information.As defined in this article, it calculates
Machine readable medium does not include temporary computer readable media (transitory media), such as data-signal and carrier wave of modulation.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Including so that process, method, commodity or equipment including a series of elements include not only those elements, but also wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including element
There is also other identical elements in process, method, commodity or equipment.
It will be understood by those skilled in the art that embodiments herein can be provided as method, system or computer program product.
Therefore, complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the application
Form.It is deposited moreover, the application can be used to can be used in the computer that one or more wherein includes computer usable program code
The shape for the computer program product implemented on storage media (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
It these are only embodiments herein, be not intended to limit this application.To those skilled in the art,
The application can have various modifications and variations.It is all within spirit herein and principle made by any modification, equivalent replacement,
Improve etc., it should be included within the scope of claims hereof.
Claims (6)
1. a kind of array antenna generating multi-modal vortex electromagnetic wave, which is characterized in that including：
Underlying dielectric plate, top layer dielectric-slab, N-1 bidirectional power distributor, microstrip line and N+1 radiating element, wherein described
N+1 radiating element include：N+1 driving patch and N+1 parasitic patch, each radiating element include one drive patch and
One parasitic patch, N=2n, n is the integer more than or equal to 2；Wherein,
The N-1 bidirectional power distributor is connect with described N+1 driving patch by the microstrip line respectively respectively, described
Bidirectional power distributor, the microstrip line and the N+1 driving patch may be contained within the upper surface of the underlying dielectric plate, institute
N+1 parasitic patch is stated to drive patch corresponding with described N+1 and be set to the lower surface of the top layer dielectric-slab.
2. array antenna according to claim 1, which is characterized in that in the N+1 radiating element, N number of radiation is single
Member is uniformly arranged on the circumference that radius is λ, for generating 1 mode vortex electromagnetic wave；1 radiating element is uniformly arranged on described
The center of circumference, for generating 0 mode vortex electromagnetic wave, wherein λ is the wavelength of electromagnetic wave.
3. array antenna according to claim 1, which is characterized in that the N+1 driving patches and the N+1 parasitic patch
Square, N+1 described in the side ratio of the N+1 parasitic patch drives the big 2~4mm of the length of side and the N+1 of patch to drive
The length of side of dynamic patch isWherein, c is the light velocity, and f is signal frequency, εrFor dielectric constant.
4. array antenna according to claim 1, which is characterized in that the underlying dielectric plate and the top layer dielectric-slab are equal
It is 0.5~2.5mm, the plank that dielectric constant is 3.2~3.6 for thickness.
5. array antenna according to claim 1, which is characterized in that between the top layer dielectric-slab and underlying dielectric plate
Spacing distance is 3~5mm.
6. array antenna according to claim 1, which is characterized in that the N-1 bidirectional power distributor includes being divided
For the bidirectional power distributor of n grade, wherein
First order bidirectional power distributor is to the microstrip line length difference Δ d between two bidirectional power distributors of the second level1=λ/
2, the microstrip line length difference Δ d between two bidirectional power distributors of second level bidirectional power distributor to the third level2=λ/
4, third level bidirectional power distributor to λ/8 microstrip line length difference Δ d3=between two neighboring driving patch, and so on,
The microstrip line length difference Δ d that n-th grade of bidirectional power distributor drives to adjacent thereto two between patchesn=λ/N, wherein λ
For the wavelength of electromagnetic wave.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114080787A (en) * | 2020-06-15 | 2022-02-22 | 北京小米移动软件有限公司 | Method and device for determining vortex wave phase offset and storage medium |
| CN114336050A (en) * | 2022-03-04 | 2022-04-12 | 中国人民解放军海军工程大学 | Multi-mode field cancellation coupling interference suppression method |
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| CN105071034A (en) * | 2015-08-27 | 2015-11-18 | 宁夏大学 | Multi-modal orbital angular momentum (OAM) vortex electromagnetic wave microstrip array antenna |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114080787A (en) * | 2020-06-15 | 2022-02-22 | 北京小米移动软件有限公司 | Method and device for determining vortex wave phase offset and storage medium |
| CN114080787B (en) * | 2020-06-15 | 2023-10-03 | 北京小米移动软件有限公司 | Vortex wave phase offset determining method, device and storage medium |
| CN114336050A (en) * | 2022-03-04 | 2022-04-12 | 中国人民解放军海军工程大学 | Multi-mode field cancellation coupling interference suppression method |
| CN114336050B (en) * | 2022-03-04 | 2022-07-29 | 中国人民解放军海军工程大学 | Multi-mode field cancellation coupling interference suppression method |
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