CN109802242A - Super surface lens - Google Patents
Super surface lens Download PDFInfo
- Publication number
- CN109802242A CN109802242A CN201910164897.4A CN201910164897A CN109802242A CN 109802242 A CN109802242 A CN 109802242A CN 201910164897 A CN201910164897 A CN 201910164897A CN 109802242 A CN109802242 A CN 109802242A
- Authority
- CN
- China
- Prior art keywords
- metal
- cross
- dielectric
- slab
- cellular construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
The invention proposes a kind of super surface lens, including several according to lens unit made of the arrangement of shape grid distribution period, the phase range of the lens unit covers 0 °~360 °, and the arrangement of the lens unit meets its transmission wave phase and electromagnetic wave is focused on a point.The present invention can realize 360 ° of phase shift range by the connection of the phase manipulation range of two kinds of structures under conditions of meeting transmission coefficient greater than -3dB, keep lens focusing effect splendid.
Description
Technical field
The invention belongs to planar lens technical field more particularly to a kind of super surface lens.
Background technique
Super surface lens are a kind of ultra-thin two-dimension array planes that a series of artificial micro-structure by sub-wavelengths forms, and are had
Make it is relatively easy, the characteristics such as relatively low, small in size and thickness ultrathin are lost, may be implemented the amplitude to electromagnetic wave, phase,
The Effective Regulation of communication mode, polarization state etc..
Super surface lens are made of the similar transmission-type frequency-selective surfaces unit of topological structure, by array
Each unit carries out phase compensation, to generate required radiation beam in the other side of array.Traditional super surface lens are logical
Frequently with the dielectric-slab number of plies at least in two layers or more of multilayer frequency selecting structures as array element, or use single layer frequency
Select structure as array element, although single layer (double-level-metal) structure is easily fabricated, in the case where meeting efficient mode
360 ° of phase shift ranges are covered to be difficult.
Summary of the invention
It is an object of the invention to propose a kind of super surface lens, solves existing super surface lens and be difficult to efficient
The problem of 360 ° of phase shift ranges are covered under mode.
Realize technical solution of the invention are as follows: a kind of super surface lens, including several according to shape grid be distributed week
The phase range of lens unit made of the arrangement of phase property, the lens unit covers 0 °~360 °, the arrangement of the lens unit
Meet its transmission wave phase and electromagnetic wave is focused on into a point.
Preferably, the transmission wave phase of the lens unit meets:
Wherein,To transmit wave phase, x 'mWith y 'nThe unit coordinate of lens, F be parallel wave along the z-axis direction
Focusing length, and f is design frequency, c is the light velocity.
Preferably, the lens unit includes cellular construction E_I and cellular construction E_II, the cellular construction E_I include
Two metal cross, two metal partition ring CCR, a hollow metal via hole and dielectric-slab, the metal cross and
Metal partition ring CCR is plated in dielectric-slab two surfaces up and down respectively, and metal cross ring set is peripheral in metal cross, hollow
Metallic vias, which is arranged among metal cross, is connected upper layer and lower layer metal cross through dielectric-slab, the cellular construction E_
II includes that two metal cross, four hollow metal via holes and dielectric-slab, metal cross are plated in dielectric-slab or more respectively
Two surfaces, four hollow metal via holes are arranged in the centre of every frame of cross and penetrate dielectric-slab for upper layer and lower layer metal ten
Font is connected.
Preferably, the metal cross, metal partition ring CCR material be PEC, with a thickness of 0.035mm.
Preferably, the material of the dielectric-slab is F4BM, with a thickness of 3mm, side length 16mm.
Preferably, the cellular construction E_I and cellular construction E_II is centrosymmetric image.
Compared with prior art, the present invention its remarkable advantage are as follows: 1) present invention passes through the phase manipulation model of two kinds of structures
The connection enclosed can realize 360 ° of phase shift range under conditions of meeting transmission coefficient greater than -3dB, make lens focusing effect pole
It is good；2) section of the present invention is low, and thickness is thin, light weight, effectively increases lens to the focusing efficiency of incident light
Further detailed description is done to the present invention with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is super surface lens structural schematic diagram of the invention.
Fig. 2 is the schematic diagram of invention unit structure E_I, wherein Fig. 2 (a) is main view, and Fig. 2 (b) is left view.
Fig. 3 is the schematic diagram of invention unit structure E_II, wherein Fig. 3 (a) is main view, and Fig. 3 (b) is left view.
Fig. 4 is invention unit structure E_I transmission coefficient curve in 11GHz, wherein Fig. 4 (a) is with metal cross
Side length l2The map of magnitudes of variation；Fig. 4 (b) is with metal cross side length l2The phase diagram of variation.
Fig. 5 is invention unit structure E_II transmission coefficient curve in 11GHz, wherein Fig. 5 (a) is with metal cross
Frame side length l3The map of magnitudes of variation；Fig. 5 (b) is with metal cross side length l3The phase diagram of variation.
Fig. 6 is that cellular construction E_I of the invention connects coverage area curve with the cellular construction E_II phase realized.
Fig. 7 is for super surface lens of the invention along the normalization at the intersection of xoz plane and yoz plane at 11GHz
Power density distribution figure.
Specific embodiment
A kind of super surface lens, including several are according to lens unit made of the arrangement of shape grid distribution period, it is described
The phase range of lens unit covers 0 °~360 °, and the arrangement of the lens unit meets its transmission wave phase and focuses electromagnetic wave
To a point.
In further embodiment, the transmission wave phase of the lens unit meets:
Wherein,To transmit wave phase, x 'mWith y 'nThe unit coordinate of lens, F be parallel wave along the z-axis direction
Focusing length, and f is design frequency, c is the light velocity.
In further embodiment, the lens unit includes cellular construction E_I and cellular construction E_II, the unit knot
Structure E_I includes two metal cross, two metal partition ring CCR, a hollow metal via hole and dielectric-slab, the metal
Cross and metal partition ring CCR are plated in dielectric-slab two surfaces up and down respectively, and metal cross ring set is in metal cross
Periphery, hollow metal via hole, which is arranged among metal cross, is connected upper layer and lower layer metal cross through dielectric-slab, described
Cellular construction E_II includes that two metal cross, four hollow metal via holes and dielectric-slab, metal cross are plated in respectively
Two surfaces, four hollow metal via holes are arranged in the centre of every frame of cross and will be upper and lower through dielectric-slab dielectric-slab up and down
Double layer of metal cross is connected.
In further embodiment, the metal cross, metal partition ring CCR material be PEC, with a thickness of
0.035mm。
In further embodiment, the material of the dielectric-slab is F4BM, with a thickness of 3mm, side length 16mm.
In further embodiment, the cellular construction E_I and cellular construction E_II are centrosymmetric image.
The present invention is in the way of adjusting cellular construction E_I and cellular construction E_II metal cross-shaped structure size to different positions
The electromagnetic wave set carries out phase compensation, guarantees the other side that transmissive arrays unit makes electromagnetic wave full impregnated be mapped to unit.Specific implementation
Mode are as follows: first according to formula:The phase compensation for calculating corresponding position, establishes phase
Compensation and the positional relationship in lens；Then, by emulation obtain meet transmission phase be greater than 360 ° corresponding to size model
It encloses, establishes the relationship of phase compensation and size, obtain corresponding look-up table；Finally by the mode of look-up table, the first step is compareed
Phase compensation structure size needed for corresponding position is mapped, make transmissive arrays along the saturating of X direction and y direction
Penetrating phase range is 360 °.
The present invention devises the element group being made of two similar cellular construction E_I, E_II, and the lens unit is logical
The size for overregulating E_I, E_II metal cross carries out phase compensation to electromagnetic wave.Meeting item of the transmission coefficient greater than -3dB
Under part, the phase manipulation range of two elements can connect well, and realize 360 ° of phase shift range.
Embodiment 1
As shown in Figure 1, the super surface lens of the present embodiment are arranged by 293 lens units according to shape grid distribution period
It forms.The super surface lens of the present embodiment are according to adjustment structure cellular construction E_I and cellular construction E_II metal cross size
Mode phase compensation is carried out to the electromagnetic wave of different location, make the covering phase range that lens unit E_I, E_II are total
360°。
As shown in Fig. 2, in the present embodiment, cellular construction E_I include two metal cross, two metal partition ring CCR,
One hollow metal via hole and dielectric-slab, the metal cross and metal partition ring CCR are plated in dielectric-slab or more respectively
Two surfaces, and metal cross ring set, in metal cross periphery, the setting of hollow metal via hole penetrates among metal cross
Upper layer and lower layer metal cross is connected by dielectric-slab.It is width is w that metal is criss-cross2=2.5mm；Metal partition ring (CCR)
Interior ring length is l1=8mm, width w1=3.6mm, the distance between inner ring and outer ring are t=0.3mm；Hollow metal via hole
Diameter be d=0.3mm.
As shown in figure 3, in the present embodiment, including two metal cross, four hollow metal via holes and dielectric-slab, gold
Belong to cross be plated in respectively dielectric-slab up and down two surfaces, four hollow metal via holes be arranged in the centre of every frame of cross and
Upper layer and lower layer metal cross is connected through dielectric-slab.The criss-cross width of metal is w3=3mm；Hollow metal via hole it is straight
Diameter is d=0.3mm, and the distance between via hole is r=2mm.
In the present embodiment, the dielectric-slab dielectric constant of cellular construction E_I and cellular construction E_II are all 2.94, and dielectric-slab is long
Spend p=16mm, medium board width p=16mm, media plate thickness h=3mm.The material that the dielectric-slab uses is F4BM.
As shown in figure 4, cellular construction E_I is in 11GHz, metal cross side length l in the present embodiment2From 2.5mm to
When 7.65mm stepping 0.05mm changes, amplitude transfer coefficient is all larger than -3dB, and transmission phase only changes to -124 ° from -34 °, phase
Position steering range only covers 90 °.
Thus, complete phase covering is realized in the present embodiment, devises cellular construction E_II, cellular construction E_II
Metal partition ring (CCR) is eliminated on the basis of cellular construction E_I, as shown in figure 5, in the present embodiment, cellular construction E_II
In 11GHz, metal cross side length l3When from 9.6mm to 15.7mm, stepping 0.05mm changes, amplitude transfer coefficient is big
In -3dB, transmits phase and change to -398 ° from -125 °, phase steering range covers 273 °.
As shown in fig. 6, in the case where all meeting transmission coefficient greater than -3dB, cellular construction E_I and cellular construction E_II
The connection of phase steering range it is good, unit group provides total phase shift range from -34 ° to -398 °, and coverage area is greater than
360°。
For the focusing function of the super surface lens of detection design, emulation experiment has been carried out, has emitted a parallel wave excitation
The focusing phenomenon of the lens is detected, it is found that power density when 10GHz in xoz plane all concentrates on one piece of region.
As shown in fig. 7, focusing lens structure xoz plane and power spectral density of yoz plane intersection in 11GHz are distributed
Normalization has peak value at the distance of about z=150mm.
Claims (6)
1. a kind of super surface lens, which is characterized in that including several according to lens made of the arrangement of shape grid distribution period
Unit, the phase range of the lens unit cover 0 °~360 °, and the arrangement of the lens unit meets its transmission wave phase will
Electromagnetic wave focuses on a point.
2. super surface lens according to claim 1, which is characterized in that the transmission wave phase of the lens unit meets:
Wherein,To transmit wave phase, x 'mWith y 'nIt is the unit coordinate of lens, F is that the focusing of parallel wave along the z-axis direction is long
Degree, f is design frequency, and c is the light velocity.
3. super surface lens according to claim 1, which is characterized in that the lens unit include cellular construction E_I and
Cellular construction E_II, the cellular construction E_I include two metal cross, two metal partition ring CCR, a hollow metal
Via hole and dielectric-slab, the metal cross and metal partition ring CCR are plated in dielectric-slab two surfaces up and down, and gold respectively
Belong to cross ring set in metal cross periphery, hollow metal via hole, which is arranged among metal cross, penetrates dielectric-slab for upper and lower two
Layer metal cross is connected, and the cellular construction E_II includes two metal cross, four hollow metal via holes and medium
Plate, metal cross is plated in dielectric-slab respectively, and every frame of cross is arranged in two surfaces, four hollow metal via holes up and down
Upper layer and lower layer metal cross is connected by intermediate and transmission dielectric-slab.
4. super surface lens according to claim 3, which is characterized in that the metal cross, metal partition ring CCR
Material is PEC, with a thickness of 0.035mm.
5. super surface lens according to claim 3, which is characterized in that the material of the dielectric-slab is F4BM, with a thickness of
3mm, side length 16mm.
6. super surface lens according to claim 1, which is characterized in that the cellular construction E_I and cellular construction E_II
It is centrosymmetric image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164897.4A CN109802242B (en) | 2019-03-05 | 2019-03-05 | Super-surface lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164897.4A CN109802242B (en) | 2019-03-05 | 2019-03-05 | Super-surface lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109802242A true CN109802242A (en) | 2019-05-24 |
| CN109802242B CN109802242B (en) | 2020-12-11 |
Family
ID=66562570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910164897.4A Active CN109802242B (en) | 2019-03-05 | 2019-03-05 | Super-surface lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109802242B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518364A (en) * | 2019-08-22 | 2019-11-29 | 南京理工大学 | Super surface condenser lens based on no through-hole single structure |
| CN110739551A (en) * | 2019-10-29 | 2020-01-31 | Oppo广东移动通信有限公司 | Array lens, lens antenna, and electronic apparatus |
| CN111695211A (en) * | 2020-05-20 | 2020-09-22 | 哈尔滨工程大学 | Super-surface design method |
| WO2021212811A1 (en) * | 2020-04-24 | 2021-10-28 | 浙江舜宇光学有限公司 | Metasurface imaging device |
| CN113687453A (en) * | 2021-07-27 | 2021-11-23 | 华南理工大学 | Variable-focus near-infrared super-surface lens and control method thereof |
| CN115051168A (en) * | 2022-06-29 | 2022-09-13 | 电子科技大学 | Single-layer flat ultra-wideband super-surface lens and lens antenna |
| CN115117634A (en) * | 2022-06-30 | 2022-09-27 | 电子科技大学 | High-gain circularly polarized beam scanning antenna with transmission super surface |
| WO2024001910A1 (en) * | 2022-06-30 | 2024-01-04 | 中兴通讯股份有限公司 | Electromagnetic metasurface lens and communication device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4467329A (en) * | 1981-05-27 | 1984-08-21 | General Electric Company | Loaded waveguide lenses |
| EP1976062A1 (en) * | 2007-03-30 | 2008-10-01 | Itt Manufacturing Enterprises, Inc. | Radio frequency lens and method of suppressing side-lobes |
| US20090146907A1 (en) * | 2007-12-07 | 2009-06-11 | Kenneth William Brown | Multiple Frequency Reflect Array |
| CN105609967A (en) * | 2015-12-30 | 2016-05-25 | 成都亿豪智科技有限公司 | Dual-polarization plane reflective array antenna |
| EP3149540A1 (en) * | 2013-07-08 | 2017-04-05 | Samsung Electronics Co., Ltd. | Lens with spatial mixed-order bandpass filter |
| CN106785476A (en) * | 2017-02-28 | 2017-05-31 | 南京理工大学 | A kind of Meta Materials wave-absorber |
| CN107069231A (en) * | 2017-04-17 | 2017-08-18 | 西安工业大学 | A kind of low section high efficiency polarization conversion transmits array antenna |
| CN107453050A (en) * | 2017-06-20 | 2017-12-08 | 南京航空航天大学 | Surpass the broadband lens on surface based on phase gradient |
| CN107589540A (en) * | 2017-10-31 | 2018-01-16 | 重庆大学 | Birefringent phase regulates and controls super surface texture unit, wideband polarization and phase regulation and control array and device |
-
2019
- 2019-03-05 CN CN201910164897.4A patent/CN109802242B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4467329A (en) * | 1981-05-27 | 1984-08-21 | General Electric Company | Loaded waveguide lenses |
| EP1976062A1 (en) * | 2007-03-30 | 2008-10-01 | Itt Manufacturing Enterprises, Inc. | Radio frequency lens and method of suppressing side-lobes |
| US20090146907A1 (en) * | 2007-12-07 | 2009-06-11 | Kenneth William Brown | Multiple Frequency Reflect Array |
| EP3149540A1 (en) * | 2013-07-08 | 2017-04-05 | Samsung Electronics Co., Ltd. | Lens with spatial mixed-order bandpass filter |
| CN105609967A (en) * | 2015-12-30 | 2016-05-25 | 成都亿豪智科技有限公司 | Dual-polarization plane reflective array antenna |
| CN106785476A (en) * | 2017-02-28 | 2017-05-31 | 南京理工大学 | A kind of Meta Materials wave-absorber |
| CN107069231A (en) * | 2017-04-17 | 2017-08-18 | 西安工业大学 | A kind of low section high efficiency polarization conversion transmits array antenna |
| CN107453050A (en) * | 2017-06-20 | 2017-12-08 | 南京航空航天大学 | Surpass the broadband lens on surface based on phase gradient |
| CN107589540A (en) * | 2017-10-31 | 2018-01-16 | 重庆大学 | Birefringent phase regulates and controls super surface texture unit, wideband polarization and phase regulation and control array and device |
Non-Patent Citations (1)
| Title |
|---|
| 贾宇轩等: ""基于超表面全息的多焦点透镜"", 《光电工程》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518364A (en) * | 2019-08-22 | 2019-11-29 | 南京理工大学 | Super surface condenser lens based on no through-hole single structure |
| CN110739551A (en) * | 2019-10-29 | 2020-01-31 | Oppo广东移动通信有限公司 | Array lens, lens antenna, and electronic apparatus |
| CN110739551B (en) * | 2019-10-29 | 2021-09-28 | Oppo广东移动通信有限公司 | Array lens, lens antenna, and electronic apparatus |
| WO2021212811A1 (en) * | 2020-04-24 | 2021-10-28 | 浙江舜宇光学有限公司 | Metasurface imaging device |
| CN111695211A (en) * | 2020-05-20 | 2020-09-22 | 哈尔滨工程大学 | Super-surface design method |
| CN111695211B (en) * | 2020-05-20 | 2021-06-22 | 哈尔滨工程大学 | Super-surface design method |
| CN113687453A (en) * | 2021-07-27 | 2021-11-23 | 华南理工大学 | Variable-focus near-infrared super-surface lens and control method thereof |
| CN115051168A (en) * | 2022-06-29 | 2022-09-13 | 电子科技大学 | Single-layer flat ultra-wideband super-surface lens and lens antenna |
| CN115051168B (en) * | 2022-06-29 | 2023-07-28 | 电子科技大学 | Single-layer flat plate ultra-wideband ultra-surface lens and lens antenna |
| CN115117634A (en) * | 2022-06-30 | 2022-09-27 | 电子科技大学 | High-gain circularly polarized beam scanning antenna with transmission super surface |
| WO2024001910A1 (en) * | 2022-06-30 | 2024-01-04 | 中兴通讯股份有限公司 | Electromagnetic metasurface lens and communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109802242B (en) | 2020-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109802242A (en) | Super surface lens | |
| Zhao et al. | General formulas for 2-D leaky-wave antennas | |
| CN105789906B (en) | A kind of super surface recombination structure of 2D phase gradients | |
| CN105470660B (en) | Extremely low section cylinder Luneberg lens antenna based on novel medium filling mode | |
| CN106355245B (en) | A kind of Pattern Synthesis of Antenna Array method based on neural network algorithm | |
| CN109742556A (en) | A kind of more feed multibeam lens antennas of broadband circle polarized millimeter wave | |
| CN107275798A (en) | Super surface lens antenna | |
| WO2019114268A1 (en) | Sub-wavelength structure material compatible with low detectability of infrared, laser and microwaves | |
| CN103490169B (en) | Individual layer broadband random surface | |
| CN205609758U (en) | Can extend low section lens antenna of angle sweep | |
| CN207098066U (en) | Lens antenna based on Novel meta-material cellular construction | |
| CN104809270B (en) | Merge the square ring array electro-magnetic abortion film design method of equivalent circuit and genetic algorithm | |
| CN110109202A (en) | Super surface lens | |
| CN106299628A (en) | A kind of antenna and wireless router | |
| CN108847530A (en) | A kind of triangular pyramid has the super skin antenna cover of beam alignmetn function | |
| KR20200019692A (en) | New hollow lightweight lens structure | |
| CN103367911A (en) | Metamaterial base station antenna housing and antenna system | |
| CN102905508B (en) | A kind of mixing absorbing material | |
| CN109037963A (en) | A kind of adjustable X-band absorbing material of frequency-selective surfaces | |
| CN116864997B (en) | Ultra-wideband low-profile metamaterial wave absorber based on resistive film | |
| CN102629707B (en) | Antenna housing for reducing minor lobe level by using artificial structure material | |
| CN110048237A (en) | The adjustable X-band absorbing material of electricity | |
| CN109638468A (en) | A kind of transmission units, array and antenna loading delay line phase | |
| CN102480019B (en) | Metamaterial antenna | |
| CN110518364A (en) | Super surface condenser lens based on no through-hole single structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |