CN109994813A - The active super surface dielectric lens antenna with holes of circular polarisation varactor - Google Patents
The active super surface dielectric lens antenna with holes of circular polarisation varactor Download PDFInfo
- Publication number
- CN109994813A CN109994813A CN201910267033.5A CN201910267033A CN109994813A CN 109994813 A CN109994813 A CN 109994813A CN 201910267033 A CN201910267033 A CN 201910267033A CN 109994813 A CN109994813 A CN 109994813A
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- varactor
- circular polarisation
- super surface
- holes
- active super
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- 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
- H01Q13/02—Waveguide horns
-
- 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
- H01Q13/02—Waveguide horns
- H01Q13/0241—Waveguide horns radiating a circularly polarised wave
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
Abstract
The invention discloses a kind of active super surface dielectric lens antennas with holes of circular polarisation varactor, including condenser lens, circular polarisation array, gasket, support column, electromagnetic horn and pedestal；Circular polarisation array is super surface；Condenser lens is di-lens with holes；Circular polarisation array, condenser lens, support column are sequentially connected by gasket, and electromagnetic horn is fixed on the base；Circular polarisation array is the active super surface of multilayer varactor, and interlayer is separated by gasket；The super surface of single layer varactor is made of the metal pattern of periodic arrangement, and metal pattern is rectangular patch in outer straight-flanked ring nesting, is connected between outer ring and interior patch by varactor；Transmitted wave polarization mode is adjusted by changing varactor capacitance size.High-gain can be realized while miniaturization.
Description
Technical field
The invention belongs to millimeter wave, THz communication technology field more particularly to a kind of active super tables of circular polarisation varactor
Face dielectric lens antenna with holes.
Background technique
Electromagnetic lens is a kind of lens realized in microwave and millimeter wave frequency range similar to functions such as convergence, the divergings of optical lens
Structure.
Millimeter wave is the electromagnetic wave that frequency range is 30~300GHz, and wavelength is 10mm~1mm.Terahertz is frequency model
The frequency range for 300GHz~3THz is enclosed, wavelength is 1mm~0.1mm.Millimere-wave band and Terahertz frequency range have bandwidth, transmission
The features such as rate is high, and equipment volume is small, while it is small to decay, and penetration power is strong is suitble near field point-to-point communication, satellite communication etc..It answers
Electromagnetic lens antenna for millimeter wave frequency band can preferably meet application scenarios, that is, meet the requirement of high convergence and high-gain.
Super surface is a kind of longitudinal thickness much smaller than wavelength, uses plan periodic structure, laterally by adjusting arrangement units
Structure realize adjustment back wave and transmission wave phase, amplitude, polarization mode.It is a kind of Meta Materials answering in two-dimensional surface
With.
The present invention realizes circular polarisation using active super surface.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of circular polarisation transfigurations for working in millimeter and involving terahertz wave band
Active super surface dielectric lens antenna with holes is managed, for realizing broadband, the circular polarized antenna of variable polarization mode.
The present invention solves by the following technical programs: a kind of active super surface di-lens day with holes of circular polarisation varactor
Line, which is characterized in that including condenser lens, circular polarisation array, gasket, support column, electromagnetic horn and pedestal；The condenser lens
For di-lens with holes, the circular polarisation array is super surface；The circular polarisation array, condenser lens, support column pass through pad
Piece is sequentially connected, and the support column is fixed on the base, and the electromagnetic horn is fixed on the base, the loudspeaker of the electromagnetic horn
Mouthful towards condenser lens；The circular polarisation array is the active super surface of multilayer varactor, and interlayer is separated by gasket；Single layer transfiguration
It manages super surface to be made of the metal pattern of periodic arrangement, metal pattern is rectangular patch, outer ring and interior patch in outer straight-flanked ring nesting
It is connected between piece by varactor；Transmitted wave polarization mode is adjusted by changing varactor capacitance size.
Further, which is full-closed structure.
Further, the support column is cylindrical shape, and for the gasket to be circular, the material of the support column and gasket is equal
For ABS plastic, the support column wall posts absorbing material.
Further, the condenser lens is the uniform dielectric of equal thickness, and the different direction z of distribution diameter is logical in medium
Medium is considered as line-spacing and column away from equal x/y plane network by hole, and the symmetry axis of any through-hole is located at the friendship of network
At point.
Further, the aperture of condenser lens through-hole is adjusted, the phase shift of through-hole transmittance wave changes correspondingly, so that each
Through-hole can compensate for the phase shift to be compensated of the position.
Further, the circular polarisation array uses the active super surface of multilayer varactor, and every layer includes medium substrate, medium
The metal pattern unit of the lower surface etching period arrangement of substrate, each metal pattern unit are outer square loop nesting internal moment
Shape patch is connected by the opposite varactor of both direction between outer square loop and interior rectangular patch, or passes through four
Varactor is connected.
Further, the circular polarisation array uses the active super surface of multilayer varactor, and every layer includes medium substrate, medium
The metal pattern unit of the lower surface etching period arrangement of substrate, each metal pattern unit are outer ring ring nesting inner circular
Patch is connected between outer ring ring and inner circular patch by the opposite varactor of both direction.
Further, two adjacent interlayers of the one-dimensional scanning array are separate layer, filling air, foam or medium base
Plate.
Further, it is connected between the active super surface adjacent cells by resistance；Offset line loads a list wherein
On member；Change transmitted wave polarization mode, including left-hand circularly polarized, right hand circular polarisation and line pole by changing bias voltage
Change.
The advantage of the present invention compared with the prior art is:
1, the circular polarized antenna realized using the active super surface of multilayer, the advantage with high bandwidth.By adjusting biased electrical
Pressure can realize circular polarisation outgoing wave in wider bandwidth.
2, by adjusting bias voltage, outgoing left-hand circularly polarized wave, the right hand be can be realized simultaneously using identical structural antenna
Circularly polarised wave and line polarization wave, and by adjusting the switching between bias voltage realization three.
3, in order to reach higher gain, condenser lens uses di-lens with holes in the present invention.
4, in order to reduce loss and under the less number of plies have bigger phase shift adjustable range, the present invention in circular polarisation transfiguration
Cell parameters in active super surface array, dielectric substrate thickness, varactor capacitance size is managed to be distributed in Axinlly nonuniform.
5, inventive antenna is full-closed structure, reduces electromagnetic interference and reduces energy loss simultaneously.
Detailed description of the invention
Fig. 1 is preferred embodiment condenser lens di-lens schematic diagram with holes；
Fig. 2 is the active super surface texture schematic diagram of preferred embodiment circular polarisation varactor；
Fig. 3 is that the active super surface cell structure size of preferred embodiment circular polarisation varactor marks schematic diagram；
Fig. 4 is condenser lens, entelechy in the active super surface dielectric lens antenna with holes of preferred embodiment circular polarisation varactor
Change array and electromagnetic horn schematic diagram；
Fig. 5 is condenser lens, entelechy in the active super surface dielectric lens antenna with holes of preferred embodiment circular polarisation varactor
Change array and electromagnetic horn relative position size marking schematic diagram；
Fig. 6 is the active super surface cell offset line loading scheme schematic diagram of preferred embodiment circular polarisation array varactor；
Fig. 7 is condenser lens in the active super surface lens antenna of preferred embodiment circular polarisation varactor, circular polarisation array, branch
The assembled relation schematic diagram of dagger, electromagnetic horn；
In figure: condenser lens 1, circular polarisation array 2, gasket 3, support column 4, electromagnetic horn 5, pedestal 6.
Specific embodiment
Below in conjunction with the attached drawing in the present embodiment, technical solution in the embodiment of the present invention progress is retouched clear and completely
It states.
Embodiment 1
The active super surface dielectric lens antenna with holes of a kind of circular polarisation varactor provided in this embodiment, which is characterized in that
Including condenser lens 1, circular polarisation array 2, gasket 3, support column 4, electromagnetic horn 5 and pedestal 6；The condenser lens 1 is with holes
Di-lens, the circular polarisation array 2 are super surface；The circular polarisation array 2, condenser lens 1, support column 4 pass through gasket 3
It is sequentially connected, the support column 4 is fixed on pedestal 6, and the electromagnetic horn 5 is fixed on pedestal 6, the electromagnetic horn 5
Horn mouth is towards condenser lens 1；The circular polarisation array 2 is the active super surface of multilayer varactor, and interlayer is separated by gasket 3；
The super surface of single layer varactor is made of the metal pattern of periodic arrangement, and metal pattern is rectangular patch in outer straight-flanked ring nesting, outside
It is connected between ring and interior patch by varactor；Transmitted wave polarization mode is adjusted by changing varactor capacitance size.
Further, which is full-closed structure.
Further, the support column 4 is cylindrical shape, and the gasket 3 is annular shape, the material of the support column 4 and gasket 3
Material is ABS plastic, and 4 inner wall of support column posts absorbing material.
Further, the condenser lens 1 is the uniform dielectric of equal thickness, and the different direction z of distribution diameter is logical in medium
Medium is considered as line-spacing and column away from equal x/y plane network by hole, and the symmetry axis of any through-hole is located at the friendship of network
At point.
Further, the aperture of 1 through-hole of condenser lens is adjusted, the phase shift of through-hole transmittance wave changes correspondingly, so that often
A through-hole can compensate for the phase shift to be compensated of the position.
Further, the circular polarisation array 2 uses the active super surface of multilayer varactor, and every layer includes medium substrate, is situated between
The metal pattern unit of the lower surface etching period arrangement of matter substrate, each metal pattern unit are in outer square loop nesting
Rectangular patch is connected by the opposite varactor of both direction between outer square loop and interior rectangular patch, or passes through four
A varactor is connected.
Further, the circular polarisation array 2 uses the active super surface of multilayer varactor, and every layer includes medium substrate, is situated between
The metal pattern unit of the lower surface etching period arrangement of matter substrate, each metal pattern unit are outer ring ring nesting inner circle
Shape patch is connected between outer ring ring and inner circular patch by the opposite varactor of both direction.
Further, two adjacent interlayers of the circular polarisation array are separate layer, filling air, foam or medium substrate.
Further, it is connected between the active super surface adjacent cells by resistance；Offset line loads a list wherein
On member；Change transmitted wave polarization mode, including left-hand circularly polarized, right hand circular polarisation and line pole by changing bias voltage
Change.
Embodiment 2
In a preferred embodiment of the invention, the active super surface dielectric lens antenna work with holes of circular polarisation varactor is in Ka frequency
Section.
Refering to what is shown in Fig. 1, Fig. 1 is the di-lens structural schematic diagram with holes of preferred embodiment of the present invention condenser lens 1.It is with holes
Di-lens uses the uniform dielectric of equal thickness, the different direction the z through-hole of distribution diameter, arbitrary neighborhood through-hole symmetry axis in medium
Laterally and longitudinally equidistant.The effective dielectric constant calculation formula of through hole and surrounding is as follows:
WhereinFor through hole and the effective dielectric constant of surrounding, εrFor the dielectric constant of medium, SvFor through hole section product, Sa
For the region entirety sectional area.Due to the lens through-hole equidistant arrangement, then the size of unit where any through-hole is u, through-hole half
Diameter is r, S in above formulavWith SaIt can be uniquely determined by u and r.
The di-lens with holes of condenser lens 1 is in a certain position units design compensation phase with central position cell design compensation
The phase difference calculating formula of phase is as follows:
WhereinPhase difference for a certain position units design compensation phase shift with central position cell design compensation phase shift, f
For condenser lens focal length, d is that cell position is with lens centre distance in Fig. 4, and λ vacuum medium wavelength under frequency thus, m is any whole
Number.ByEffective dielectric constant at this can be determined with dielectric thicknessAnd according to through-hole spacing, i.e. unit period where through-hole
U determines through-hole diameter r.Dielectric permittivity is 2.54 in the present embodiment, is 2mm with a thickness of 15mm, through-hole spacing u.
Shown in referring to figs. 2 and 3, Fig. 2 is the active super surface knot of 2 varactor of circular polarisation array in the preferred embodiment of the present invention
Structure schematic diagram；Fig. 3 is that the active super surface cell structure size mark of 2 varactor of circular polarisation array shows in the preferred embodiment of the present invention
It is intended to.Wherein the active super surface of the varactor of circular polarisation array 2 uses six layer structure, and every layer is made of periodic arrangement unit,
Fig. 2 (a) and unit in Fig. 3 (a) are carved using the nested central square patch pattern of outer square box on printed medium plate with period p
It is w that lose width out, which be t side length,oMetal outer ring and side length be wiaWith wibPatch, and 2 are connected between outer ring and patch
Or 4 varactors；In Fig. 2 (b) and unit in Fig. 3 (b) using the nested central circular patch pattern of outer ring frame, printing
Etching width on dielectric-slab with period p is t outer diameter for woMetal outer ring and diameter be wiPatch, and outer ring and patch
Varactor is connected between piece.Interlayer is separate layer, air is filled, with a thickness of g.Definition line direction is the direction x, and column direction is
The direction y changes the adjustment of its equivalent capacity by the x direction polarization wave and y of unit by adjusting the bias voltage of varactor
The phase shift of direction polarization wave.
In this preferred embodiment, the active super surface cell size of the varactor of circular polarisation array 2 changes nesting using outer rectangle
Interior rectangle paster structure, p=5.00mm, wo=4.90mm, wia=3.40mm, wib=3.40mm, t=0.30mm, g=
3.00mm.Substrate uses Rogers RT5880, with a thickness of 0.127mm, permittivity εr=2.2.Optimize g, w simultaneouslyiAnd CpMake
Its non-uniform Distribution in the z-direction obtains bigger phase shift adjustable range.
The present invention is by changing the bias voltage loaded, to change the x direction polarization wave and y direction polarization wave on the super surface
Phase shift, both make 90 ° or -90 ° of phase shift difference, two kinds of transmitted waves made to synthesize left-hand circularly polarized waves or right hand circularly polarised wave.
Refering to what is shown in Fig. 6, Fig. 6 is that the active super surface cell of 2 varactor of circular polarisation array is inclined in the preferred embodiment of the present invention
Set line loading scheme.Wherein, it is connected between longitudinally adjacent super surface cell by resistance, offset line loads a unit wherein
On；Change transmitted wave polarization mode, including left-hand circularly polarized, right hand circular polarisation and linear polarization by changing bias voltage.
With reference to shown in Fig. 4 and Fig. 5, Fig. 4 be the preferred embodiment of the present invention in the active super skin antenna cover of circular polarisation varactor,
The relative positional relationship schematic diagram of condenser lens 1, electromagnetic horn 5；Fig. 5 is the wherein active super skin antenna of circular polarisation varactor
Cover, condenser lens 1,5 relative position size marking schematic diagram of electromagnetic horn.Wherein aperture of lens D=60mm, focal length f=60mm.
Refering to what is shown in Fig. 7, Fig. 7 is circular polarisation in the active super surface di-lens with holes of preferred embodiment of the present invention varactor
The assembled relation schematic diagram of gasket 3, support column 4, electromagnetic horn 5 in the active super skin antenna cover of varactor.Wherein circular polarisation
Circular polarisation array 2, condenser lens 1 in the active super skin antenna cover of varactor are fixed using gasket 3 while manufacturing certain thickness
Separate layer, fill air or other media；Circular polarisation array 2, condenser lens 1, support column 4 are sequentially connected by gasket 3,
4 other end of support column is fixed on pedestal 6, while electromagnetic horn 5 is also secured at 6 center of pedestal, the horn mouth court of electromagnetic horn 5
To condenser lens 1.The material of gasket 3 and support column 4 is ABS plastic.4 inner wall of support column posts absorbing material.
Provided verbal description, attached drawing and claims can hold those skilled in the art very much according to the present invention
Easily in the case where not departing from thought and range of condition of the invention defined by claims, a variety of variations and change can be made.
All technical ideas according to the present invention and the substantive any modification carried out to above-described embodiment, equivalent variations, belong to this hair
Bright claim is within the limits of the protection.
Claims (9)
1. a kind of active super surface dielectric lens antenna with holes of circular polarisation varactor, which is characterized in that including condenser lens, entelechy
Change array, gasket, support column, electromagnetic horn and pedestal；The condenser lens is di-lens with holes；The circular polarisation array,
Condenser lens, support column are sequentially connected by gasket, and the support column is fixed on the base, and the electromagnetic horn is fixed on bottom
On seat, the horn mouth of the electromagnetic horn is towards condenser lens；The circular polarisation array is the active super surface of multilayer varactor, layer
Between pass through gasket separate；The super surface of single layer is made of the metal pattern of periodic arrangement, and metal pattern is outer straight-flanked ring nesting internal moment
Shape patch is connected between outer straight-flanked ring and interior rectangular patch by varactor；By changing the adjustment transmission of varactor capacitance size
Wave polarization mode.
2. a kind of active super surface dielectric lens antenna with holes of circular polarisation varactor as described in claim 1, which is characterized in that
The antenna is full-closed structure.
3. a kind of active super surface dielectric lens antenna with holes of circular polarisation varactor as described in claim 1, which is characterized in that
The support column is cylindrical shape, and the gasket is circular, and the material of the support column and gasket is ABS plastic, the branch
Dagger inner wall posts absorbing material.
4. a kind of active super surface dielectric lens antenna with holes of circular polarisation varactor as described in claim 1, which is characterized in that
The condenser lens is the uniform dielectric of equal thickness, the different direction the z through-hole of distribution diameter in medium, by medium be considered as line-spacing and
For column away from equal x/y plane network, the symmetry axis of any through-hole is located at the point of intersection of network.
5. a kind of active super surface dielectric lens antenna with holes of circular polarisation varactor as claimed in claim 4, which is characterized in that
The aperture of condenser lens through-hole is adjusted, the phase shift of through-hole transmittance wave changes correspondingly, so that each through-hole can compensate for the position
The phase shift to be compensated set.
6. a kind of active super surface dielectric lens antenna with holes of circular polarisation varactor as described in claim 1, which is characterized in that
The circular polarisation array uses the active super surface of multilayer varactor, and every layer includes medium substrate, and the lower surface of medium substrate etches
The metal pattern unit of periodic arrangement, each metal pattern unit are rectangular patch in outer square loop nesting, outer square
It is connected between ring and interior rectangular patch by the opposite varactor of both direction, or is connected by four varactors.
7. a kind of active super surface dielectric lens antenna with holes of circular polarisation varactor as described in claim 1, which is characterized in that
The circular polarisation array uses the active super surface of multilayer varactor, and every layer includes medium substrate, and the lower surface of medium substrate etches
The metal pattern unit of periodic arrangement, each metal pattern unit be outer ring ring nesting inner circular patch, outer ring ring with
It is connected between inner circular patch by the opposite varactor of both direction.
8. a kind of active super surface dielectric lens antenna with holes of circular polarisation varactor as claimed in claims 6 or 7, feature exist
In two adjacent interlayers of the circular polarisation array are separate layer, filling air, foam or medium substrate.
9. a kind of active super surface dielectric lens antenna with holes of circular polarisation varactor as claimed in claims 6 or 7, feature exist
In connected by resistance between the active super surface adjacent cells；Offset line loads on a wherein unit；Pass through change
Bias voltage changes transmitted wave polarization mode, including left-hand circularly polarized, right hand circular polarisation and linear polarization.
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| CN201910267033.5A CN109994813B (en) | 2019-04-03 | 2019-04-03 | Circular polarization varactor active super-surface porous medium lens antenna |
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| CN201910267033.5A CN109994813B (en) | 2019-04-03 | 2019-04-03 | Circular polarization varactor active super-surface porous medium lens antenna |
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| CN109994813B CN109994813B (en) | 2020-06-30 |
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| CN112636004A (en) * | 2019-10-09 | 2021-04-09 | 安徽工业大学 | Metamaterial focusing antenna for measuring space-time evolution of streamer electron density |
| CN110739549A (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 |
| CN110943278A (en) * | 2019-10-29 | 2020-03-31 | Oppo广东移动通信有限公司 | Array lens, lens antenna, and electronic apparatus |
| WO2021082965A1 (en) * | 2019-10-29 | 2021-05-06 | Oppo广东移动通信有限公司 | Array lens, lens antenna and electronic device |
| CN111628285A (en) * | 2020-06-28 | 2020-09-04 | 北京星英联微波科技有限责任公司 | Phase gradient super-surface antenna unit and antenna |
| CN111628285B (en) * | 2020-06-28 | 2021-01-19 | 北京星英联微波科技有限责任公司 | Phase gradient super-surface antenna unit and antenna |
| CN115603064A (en) * | 2022-11-28 | 2023-01-13 | 中国人民解放军国防科技大学（Cn） | Reflecting surface antenna with field gain variation and protection method |
| CN115603064B (en) * | 2022-11-28 | 2023-03-07 | 中国人民解放军国防科技大学 | Reflecting surface antenna with field gain variation and protection method |
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