CN110265783A - Frequency reconfigurable antenna based on super surface - Google Patents
Frequency reconfigurable antenna based on super surface Download PDFInfo
- Publication number
- CN110265783A CN110265783A CN201910625552.4A CN201910625552A CN110265783A CN 110265783 A CN110265783 A CN 110265783A CN 201910625552 A CN201910625552 A CN 201910625552A CN 110265783 A CN110265783 A CN 110265783A
- Authority
- CN
- China
- Prior art keywords
- gap
- antenna
- super surface
- microstrip
- length
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- H01Q13/10—Resonant slot antennas
- H01Q13/106—Microstrip slot antennas
-
- 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
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Waveguide Aerials (AREA)
Abstract
A kind of frequency reconfigurable antenna based on super surface belongs to the super surface of two dimension and Antenna Design field.The present invention realizes the adjusting of frequency for existing frequency reconfigurable antenna by introducing DC bias circuit, causes antenna structure complicated, and the problem that performance is unstable.It includes gap microstrip antenna, the gap microstrip antenna passes through floor by coaxial line and dielectric-slab is fed, it further include the super surface loaded on the microstrip antenna of gap, the super surface can be rotated relative to gap microstrip antenna machinery, realize the frequency reconfigurable of antenna；The multiple ellipse element patches of array arrangement on the super surface.The present invention changes the effective dielectric constant and equivalent permeability on super surface by rotating the super surface modification relative position on super surface and antenna, to realize the reconstruct of antenna frequencies.
Description
Technical field
The present invention relates to the frequency reconfigurable antennas based on super surface, belong to the super surface of two dimension and Antenna Design field.
Background technique
With the upgrading of technology of Internet of things development and intelligent terminal, people's lives become more and more convenient, fast.
Ubiquitous Wi-Fi in daily life, the 4G network of high-speed data communication, the NFC of quick payment are used between terminal
The appearance of the communications such as Bluetooth transmission mode allows people's lives, trip, amusement and consumption pattern that essence has occurred
Change, and greatly facilitate daily life.These communications can integrate in a mobile phone, people
Trip only needs to carry a smart phone and is just able to satisfy daily consumption.Above-mentioned different communication standard is different,
There is respective communications band respectively, this requires the performances that the antenna of terminal is restructural with multiple-frequency operation or working frequency.
Realize that the restructural means of antenna frequencies have very much, for example, can change the structure of antenna, using new material or
Person changes the dielectric constant and magnetic conductivity of material by changing antenna external electromagnetic characteristic, to change the work frequency of antenna
Rate.Traditional frequency reconfigurable antenna tunable range is small, and the restructural of electric tuning frequency needs to introduce DC bias circuit
It realizes, which increase the unstability of antenna, and structure is complicated for antenna, and volume is big and loss is big.
Therefore, against the above deficiency, it is desirable to provide one kind can easily realize the frequency reconfigurable antenna that frequency is adjusted,
Keep its frequency reconfigurable range big, and realizes continuously adjusting for frequency in frequency band.
Summary of the invention
The adjusting for realizing frequency by introducing DC bias circuit for existing frequency reconfigurable antenna, causes antenna structure
Complexity, and the problem that performance is unstable, the present invention provide a kind of frequency reconfigurable antenna based on super surface.
A kind of frequency reconfigurable antenna based on super surface of the invention, including gap microstrip antenna, the gap micro-strip
Antenna passes through floor by coaxial line and dielectric-slab is fed, and further includes the super surface loaded on the microstrip antenna of gap, described super
Surface can be rotated relative to gap microstrip antenna machinery, realize the frequency reconfigurable of antenna；
The multiple ellipse element patches of array arrangement on the super surface.
Frequency reconfigurable antenna according to the present invention based on super surface, the major and minor axis axis ratio of the ellipse element patch without
Limit is big.
The major and minor axis axis ratio of frequency reconfigurable antenna according to the present invention based on super surface, the ellipse element patch is
10。
The major and minor axis axis ratio of frequency reconfigurable antenna according to the present invention based on super surface, the ellipse element patch is
3。
The major and minor axis axis ratio of frequency reconfigurable antenna according to the present invention based on super surface, the ellipse element patch is
1。
Frequency reconfigurable antenna according to the present invention based on super surface, the gap microstrip antenna pass through 50 Ω coaxial lines
It is the microstrip-fed of gap microstrip antenna across floor and dielectric-slab.
A kind of embodiment of frequency reconfigurable antenna according to the present invention based on super surface, the gap microstrip antenna
Dielectric-slab be made of Rogers RO4358B material；
Gap microstrip antenna is rounded, radius 25mm, Microstrip Length 20mm, and micro-strip width is 2mm；It is placed in the middle on floor
The gap length of setting is 16mm, and gap width 3mm, the gap length direction and Microstrip Length direction are perpendicular；Floor
The outer diameter of upper coaxial cable is 4mm, internal diameter 2mm；
For major and minor axis axis than infinitely great ellipse element patch, long axis length 14mm, minor axis length 0.3mm, phase
Spacing is 1mm, adjacent ellipses unit patch distance 2.3mm in every row between adjacent rows.
The another embodiment of frequency reconfigurable antenna according to the present invention based on super surface, gap micro-strip day
The dielectric-slab of line is made of Rogers RO4358B material；
Gap microstrip antenna is rounded, radius 25mm, Microstrip Length 20mm, and micro-strip width is 2mm；It is placed in the middle on floor
The gap length of setting is 16mm, and gap width 3mm, the gap length direction and Microstrip Length direction are perpendicular；Floor
The outer diameter of upper coaxial cable is 4mm, internal diameter 2mm；
For major and minor axis axis than the ellipse element patch for 10, long axis length 14mm, minor axis length 1.4mm are adjacent
Spacing is 1mm, adjacent ellipses unit patch distance 2.3mm in every row between row.
The another embodiment of frequency reconfigurable antenna according to the present invention based on super surface, gap micro-strip day
The dielectric-slab of line is made of Rogers RO4358B material；
Gap microstrip antenna is rounded, radius 25mm, Microstrip Length 20mm, and micro-strip width is 2mm；It is placed in the middle on floor
The gap length of setting is 16mm, and gap width 3mm, the gap length direction and Microstrip Length direction are perpendicular；Floor
The outer diameter of upper coaxial cable is 4mm, internal diameter 2mm；
For major and minor axis axis than the ellipse element patch for 3, long axis length 14mm, minor axis length 4.67mm are adjacent
Spacing is 1mm, adjacent ellipses unit patch distance 2.3mm in every row between row.
4th various embodiments of the frequency reconfigurable antenna according to the present invention based on super surface, the gap micro-strip
The dielectric-slab of antenna is made of Rogers RO4358B material；
Gap microstrip antenna is rounded, radius 25mm, Microstrip Length 20mm, and micro-strip width is 2mm；It is placed in the middle on floor
The gap length of setting is 16mm, and gap width 3mm, the gap length direction and Microstrip Length direction are perpendicular；Floor
The outer diameter of upper coaxial cable is 4mm, internal diameter 2mm；
For major and minor axis axis than the ellipse element patch for 1, the radius of ellipse element patch is 7mm, between adjacent rows between
Away from for 1mm, adjacent ellipses unit patch distance 2.3mm in every row.
Beneficial effects of the present invention: super surface is loaded and devises one on feed antenna, and on super surface by the present invention
Serial ellipse element patch changes the relative position of feed antenna and super surface, to realize antenna by rotating super surface
Frequency reconfigurable.It is that it is super to rotate super surface modification by rotating the reason of super surface can be realized operating frequency of antenna variation
The relative position on surface and antenna, and then change the effective dielectric constant and equivalent permeability on super surface.
Antenna of the present invention has low section, compact-sized, and frequency reconfigurable range is big；In the mistake of frequency reconfiguration
There is stable performance, loss is small, while size is small, and light-weight, structure is simple in journey.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the frequency reconfigurable antenna of the present invention based on super surface；
Fig. 2 is the top surface structure schematic diagram of the gap microstrip antenna；
Fig. 3 corresponds to the bottom surface structure schematic diagram of the gap microstrip antenna of Fig. 2；
Fig. 4 is the major and minor axis axis of ellipse element patch than infinitely great super surface texture schematic diagram；
Fig. 5 is the major and minor axis axis of ellipse element patch than the super surface texture schematic diagram for 10；
Fig. 6 is the major and minor axis axis of ellipse element patch than the super surface texture schematic diagram for 3；
Fig. 7 is the major and minor axis axis of ellipse element patch than the super surface texture schematic diagram for 1；
Fig. 8 be ellipse element patch major and minor axis axis than it is infinitely great when, antenna of the present invention linear structure emulation and
Load the return loss S of isotropic model11Curve graph；
Fig. 9 be ellipse element patch major and minor axis axis ratio be 10 when, antenna of the present invention linear structure emulation and add
Carry the return loss S of isotropic model11Curve graph；
Figure 10 be ellipse element patch major and minor axis axis ratio be 3 when, antenna of the present invention linear structure emulation and add
Carry the return loss S of isotropic model11Curve graph；
Figure 11 be ellipse element patch major and minor axis axis ratio be 1 when, antenna of the present invention linear structure emulation and add
Carry the return loss S of isotropic model11Curve graph；
Figure 12 be ellipse element patch major and minor axis axis than it is infinitely great when, antenna of the present invention linear structure emulation and
The return loss S of actual measurement11Curve graph；
Figure 13 is the major and minor axis axis ratio of ellipse element patch when being 3, the linear structure emulation of antenna of the present invention and real
The return loss S of survey11Curve graph；
Figure 14 be ellipse element patch major and minor axis axis than it is infinitely great when, the face the E directional diagram of antenna of the present invention；It is described
The face E refers to the directional diagram section parallel with direction of an electric field；
Figure 15 be ellipse element patch major and minor axis axis than it is infinitely great when, the face the H directional diagram of antenna of the present invention；It is described
The face H refers to the directional diagram section parallel with magnetic direction；
Figure 16 be ellipse element patch major and minor axis axis ratio be 10 when, the face the E directional diagram of antenna of the present invention；
Figure 17 be ellipse element patch major and minor axis axis ratio be 10 when, the face the H directional diagram of antenna of the present invention；
Figure 18 be ellipse element patch major and minor axis axis ratio be 3 when, the face the E directional diagram of antenna of the present invention；
Figure 19 be ellipse element patch major and minor axis axis ratio be 3 when, the face the H directional diagram of antenna of the present invention；
Figure 20 be ellipse element patch major and minor axis axis ratio be 1 when, the face the E directional diagram of antenna of the present invention；
Figure 21 be ellipse element patch major and minor axis axis ratio be 1 when, the face the H directional diagram of antenna of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be further explained below with reference to the attached drawings and specific examples, but not as the limitation of the invention.
Specific embodiment one, in conjunction with shown in Fig. 1 to Fig. 7, the present invention provides a kind of frequencies based on super surface to weigh
Structure antenna, including gap microstrip antenna 1, the gap microstrip antenna 1 passes through floor by coaxial line and dielectric-slab is fed, and also wraps
The super surface 2 loaded on the microstrip antenna of gap is included, the super surface can be rotated relative to gap microstrip antenna machinery, realize day
The frequency reconfigurable of line；
The multiple ellipse element patches of array arrangement on the super surface.
Feed antenna is used as using gap microstrip antenna 1 in present embodiment, by rotating super surface 2, it is micro- to change gap
Antenna is realized to change the effective dielectric constant and equivalent permeability on super surface in relative position with antenna 1 Yu super surface 2
The reconstruct of frequency.The major and minor axis axis ratio of the ellipse element patch can be selected according to expected frequency reconfiguration range, long
Short axle axis is than the frequency reconfiguration range that descending variation respective antenna changes from big to small.
Ellipse element patch is set on super surface, keeps the frequency reconfigurable range of antenna big, and can be in broad frequency band
It is interior to realize continuously adjusting for wireless resonant frequency.Present embodiment rotates super surface by mechanicalness and realizes the restructural of frequency,
Do not introduce biasing circuit.It ensure that the compact-sized of antenna.
Super surface described in present embodiment is obtained from carrying out the derivation of low dimensional as three-dimensional Meta Materials.Super surface
Structural unit has the size of sub-wavelength, is as made of engineer.Super surface texture unit planar periodically or
Acyclic arrangement just obtains the super surface with specific structure, it has special electromagnetic property, this is in nature
Naturally occurring material is incomparable.Using the special electromagnetic characteristic on super surface, special super surface texture load is designed
The restructural of the frequency reconfigurable of antenna, directional diagram reconstructable and antenna polarization may be implemented on antenna.And using scattering
Parametric method completes the equivalent of super surface effective electromagnetic parameter, and then explains and realize the restructural original of antenna frequencies using super surface
Reason.
In order to guarantee that super surface can be fitted closely with antenna, need to use the antenna with planar structure as radiation
Source.Good using the microstrip slot antenna structural symmetry of apex drive, the circular configuration of plane can be used as ideal structure.Micro-strip
Radiating antenna of the antenna as super surface, its working principle is that: the energy transmitted between microstrip line conduction band and floor passes through gap
Radiation.
In present embodiment, super surface is normalized using scattering parameter method NRW, super surface is equivalent to
One block of uniform dielectric-slab, then replaces super surface with equivalent dielectric-slab, realizes the frequency reconfigurable of antenna.
Multiple ellipse element patches can arrange according to determinant in present embodiment.
Further, as shown in connection with fig. 4, a kind of embodiment of ellipse element patch includes: the ellipse element patch
Major and minor axis axis is than infinitely great.The restructural range of corresponding antenna frequencies is 1.05GHz at this time.
Ellipse element patch horizontal direction on super surface is centrally located a center row in present embodiment, in center row
Two sides, ellipse element patch in mirror symmetry formula arrange.To ellipse element patch using symmetrical design, can facilitate in CST
The middle electromagnetic parameter for obtaining super surface.In actual use, ellipse element patch asymmetric design structure can also be used, as long as
The distribution of ellipse element patch is repeated cyclically；That is, super entire surface be by multiple duplicate unit extensions and
At.
Further, as shown in connection with fig. 5, second of embodiment of ellipse element patch includes: the ellipse element patch
Major and minor axis axis ratio be 10.The restructural range of corresponding antenna frequencies is 0.92GHz at this time.
Further, as shown in connection with fig. 6, the third embodiment of ellipse element patch includes: the ellipse element patch
Major and minor axis axis ratio be 3.The restructural range of corresponding antenna frequencies is 0.8GHz at this time.
Further, as shown in connection with fig. 7, the 4th kind of embodiment of ellipse element patch includes: the ellipse element patch
Major and minor axis axis ratio be 1.The restructural range of corresponding antenna frequencies is 0.3GHz at this time.
In present embodiment, the normalization on super surface can be analyzed with scattering parameter backstepping method, use scattering parameter
Method can be with the effective dielectric constant and equivalent permeability of each rotation angle in backstepping excess of export surface, and then can use and derived
Effective dielectric constant and equivalent permeability establish the equivalent model on super surface, by the complicated electromagnetic property homogenization on super surface:
Carrying out electromagnetism homogenization to super surface scattering parameter backstepping method (NRW) can be used to calculate.Firstly, passing through the list to super surface
Meta structure carries out Electromagnetic Simulation, obtains the scattering parameter of cellular construction, then reapplies NRW algorithm, returns to resulting unit
S is lost in wave11With positive transmission coefficient S21Inversely effective dielectric constant and equivalent permeability are derived, finally with these equivalent electricity
Magnetic constant is established the super surface equivalent medium mode corresponding to four kinds of embodiment structures respectively and is loaded and imitated on antenna
Very, the actual result of obtained simulation result and antenna of the present invention is compared, the equivalent medium mode on super surface emulates knot
Fruit matches with realistic model simulation result, convenient for applying in practice.
As an example, the gap microstrip antenna passes through floor by 50 Ω coaxial lines and dielectric-slab is gap microstrip antenna
It is microstrip-fed.
, can be dimensionally-optimised to the progress of its microstrip line in order to make microstrip antenna work in gap of the present invention in C-band, finally
Optimum results and all kinds of super surface size difference are as follows:
Further, as shown in connection with fig. 4, the specific embodiment corresponding to a kind of embodiment of ellipse element patch are as follows:
The dielectric-slab of the gap microstrip antenna is made of Rogers RO4358B material；
Gap microstrip antenna is rounded, and as shown in Figures 2 and 3, radius 25mm, Microstrip Length Fl are 20mm, and micro-strip is wide
Degree Fw is 2mm；The gap length being centrally located on floor be Sl16mm, gap width Sw be 3mm, the gap length direction with
Microstrip Length direction is perpendicular；The outer diameter Pr of coaxial cable is 4mm on floor, and internal diameter Cr is 2mm；
Shown in Fig. 4, for major and minor axis axis than infinitely great ellipse element patch, long axis length Cl is 14mm, minor axis length
Cw is 0.3mm, and spacing Ul is 1mm between adjacent rows, and adjacent ellipses unit patch distance Uw is 2.3mm in every row.
Further, as shown in connection with fig. 5, the specific embodiment corresponding to second of embodiment of ellipse element patch are as follows:
The dielectric-slab of the gap microstrip antenna is made of Rogers RO4358B material；
Gap microstrip antenna is rounded, and as shown in Figures 2 and 3, radius 25mm, Microstrip Length Fl are 20mm, and micro-strip is wide
Degree Fw is 2mm；The gap length being centrally located on floor be Sl16mm, gap width Sw be 3mm, the gap length direction with
Microstrip Length direction is perpendicular；The outer diameter Pr of coaxial cable is 4mm on floor, and internal diameter Cr is 2mm；
Shown in Fig. 5, for major and minor axis axis than the ellipse element patch for 10, long axis length Cl is 14mm, minor axis length Cw
For 1.4mm, spacing Ul is 1mm between adjacent rows, and adjacent ellipses unit patch distance Uw is 2.3mm in every row.
Further, as shown in connection with fig. 6, the specific embodiment corresponding to the third embodiment of ellipse element patch are as follows:
The dielectric-slab of the gap microstrip antenna is made of Rogers RO4358B material；
Gap microstrip antenna is rounded, and as shown in Figures 2 and 3, radius 25mm, Microstrip Length Fl are 20mm, and micro-strip is wide
Degree Fw is 2mm；The gap length being centrally located on floor be Sl16mm, gap width Sw be 3mm, the gap length direction with
Microstrip Length direction is perpendicular；The outer diameter Pr of coaxial cable is 4mm on floor, and internal diameter Cr is 2mm；
Shown in Fig. 6, for major and minor axis axis than the ellipse element patch for 3, long axis length Cl is 14mm, and minor axis length Cw is
4.67mm, spacing Ul is 1mm between adjacent rows, and adjacent ellipses unit patch distance Uw is 2.3mm in every row.
Further, as shown in connection with fig. 7, the specific embodiment corresponding to the 4th kind of embodiment of ellipse element patch are as follows:
The dielectric-slab of the gap microstrip antenna is made of Rogers RO4358B material；
Gap microstrip antenna is rounded, and as shown in Figures 2 and 3, radius 25mm, Microstrip Length Fl are 20mm, and micro-strip is wide
Degree Fw is 2mm；The gap length being centrally located on floor be Sl16mm, gap width Sw be 3mm, the gap length direction with
Microstrip Length direction is perpendicular；The outer diameter Pr of coaxial cable is 4mm on floor, and internal diameter Cr is 2mm；
Shown in Fig. 7, for major and minor axis axis than the ellipse element patch for 1, ellipse element patch is rounded, oval at this time single
The radius r of first patch is 7mm, and spacing Ul is 1mm between adjacent rows, and adjacent ellipses unit patch distance Uw is 2.3mm in every row.
Gap in described Fig. 3 is the gap on antenna ground plate.
In present embodiment, the dielectric-slab dielectric constant of Rogers RO4358B material is 3.48, with a thickness of 1.524mm.
After loading super surface, the present invention can ensure that the total height of antenna is no more than 3.2mm.
In the present invention, one piece can be then established to calculate the electromagnetic parameter on four kinds of super surfaces of difference according to according to NRW
With super surface same thickness, the dielectric-slab of same shape is loaded directly on slot antenna, is loaded directly into super surface with the present invention
Antenna be compared, analyze normalization characteristic by comparing resonance frequency.
Super surface is equivalent at isotropic homogeneous medium model formation isotropic model.Isotropic model it is every
The equivalent of a angle requires to carry out Electromagnetic Simulation to the super surface cell of the angle.It is single to super surface using TE mould or TM mould
Member is motivated, and obtains the scattering parameter of unit, then derives equivalent parameters with scattering parameter method, is finally resettled each to same
Property homogeneous medium model replace actual super surface load to be emulated on antenna.The results show that isotropic model can
To predict the resonance frequency point of antenna.
Fig. 8 to Figure 11 is respectively the super surface of ellipse element structure and its return loss for normalizing isotropic model
The variation relation of S11 and frequency.Select four 0 ° of rotation angles on super surface, 30 °, 60 °, 90 ° emulated, it can be seen that
The frequency reconfigurable range that ellipse long and short shaft axis is loaded than the frequency reconfigurable antenna on infinitely great super surface is 3.82GHz-
The frequency reconfigurable range of 4.87GHz, load frequency reconfigurable antenna of the ellipse long and short shaft axis than 10 surpassing surface are 3.9GHz-
The frequency reconfigurable range of 4.82GHz, load frequency reconfigurable antenna of the ellipse long and short shaft axis than 3 surpassing surface are 3.97GHz-
4.74GHz, load ellipse long and short shaft axis is than being 3.8GHz- for the frequency reconfigurable range that 1 surpasses the frequency reconfigurable antenna on surface
4.1GHz.From this figure it can be seen that the normalization creep function on super surface can the extraordinary resonance frequency point for predicting antenna.
Figure 12 be load ellipse long and short shaft axis than for infinitely great super surface frequency reconfigurable antenna emulation and measured result,
Equally four 0 °, 30 °, 60 °, 90 ° of rotation angles of selection.From test result as can be seen that under four kinds of rotation angles, resonance is emulated
It is very good that frequency point and actual measurement antenna resonance frequency are coincide.Similarly, Figure 13 is that load ellipse long and short shaft axis can than 3 surpassing surface frequency
It is very good that the emulation and test result of reconfigurable antenna, emulation and test result are fitted.
It can be seen from the antenna radiation pattern simulation result of Figure 14 to Figure 21 under each state, antenna is to the direction+z
Radiation, and back lobe is very low, has good radiance.
In conclusion the present invention realizes the frequency reconfigurable of antenna by loading super surface on feed antenna, avoid
The loss of biasing circuit and other mechanically tunable antennas necessary to electric adjustable antenna is big, at high cost, tunable range
Small, the disadvantages of volume is big.
Although describing the present invention herein with reference to specific embodiment, it should be understood that, these realities
Apply the example that example is only principles and applications.It should therefore be understood that can be carried out to exemplary embodiment
Many modifications, and can be designed that other arrangements, without departing from spirit of the invention as defined in the appended claims
And range.It should be understood that different appurtenances can be combined by being different from mode described in original claim
Benefit requires and feature described herein.It will also be appreciated that the feature in conjunction with described in separate embodiments can be used
In other described embodiments.
Claims (10)
1. a kind of frequency reconfigurable antenna based on super surface, including gap microstrip antenna, the gap microstrip antenna passes through same
Axis passes through floor and dielectric-slab is fed, which is characterized in that and it further include the super surface loaded on the microstrip antenna of gap, it is described super
Surface can be rotated relative to gap microstrip antenna machinery, realize the frequency reconfigurable of antenna；
The multiple ellipse element patches of array arrangement on the super surface.
2. the frequency reconfigurable antenna according to claim 1 based on super surface, which is characterized in that the ellipse element patch
The major and minor axis axis of piece is than infinitely great.
3. the frequency reconfigurable antenna according to claim 1 based on super surface, which is characterized in that the ellipse element patch
The major and minor axis axis ratio of piece is 10.
4. the frequency reconfigurable antenna according to claim 1 based on super surface, which is characterized in that the ellipse element patch
The major and minor axis axis ratio of piece is 3.
5. the frequency reconfigurable antenna according to claim 1 based on super surface, which is characterized in that the ellipse element patch
The major and minor axis axis ratio of piece is 1.
6. the frequency reconfigurable antenna according to any one of claim 1 to 5 based on super surface, which is characterized in that
The gap microstrip antenna passes through floor by 50 Ω coaxial lines and dielectric-slab is the microstrip-fed of gap microstrip antenna.
7. the frequency reconfigurable antenna according to claim 2 based on super surface, which is characterized in that
The dielectric-slab of the gap microstrip antenna is made of Rogers RO4358B material；
Gap microstrip antenna is rounded, radius 25mm, Microstrip Length 20mm, and micro-strip width is 2mm；It is centrally located on floor
Gap length be 16mm, gap width 3mm, the gap length direction and Microstrip Length direction are perpendicular；It is same on floor
The outer diameter of shaft cable is 4mm, internal diameter 2mm；
For major and minor axis axis than infinitely great ellipse element patch, long axis length 14mm, minor axis length 0.3mm, adjacent rows
Between spacing be 1mm, adjacent ellipses unit patch distance 2.3mm in every row.
8. the frequency reconfigurable antenna according to claim 3 based on super surface, which is characterized in that
The dielectric-slab of the gap microstrip antenna is made of Rogers RO4358B material；
Gap microstrip antenna is rounded, radius 25mm, Microstrip Length 20mm, and micro-strip width is 2mm；It is centrally located on floor
Gap length be 16mm, gap width 3mm, the gap length direction and Microstrip Length direction are perpendicular；It is same on floor
The outer diameter of shaft cable is 4mm, internal diameter 2mm；
For major and minor axis axis than the ellipse element patch for 10, long axis length 14mm, minor axis length 1.4mm, adjacent rows it
Between spacing be 1mm, adjacent ellipses unit patch distance 2.3mm in every row.
9. the frequency reconfigurable antenna according to claim 4 based on super surface, which is characterized in that
The dielectric-slab of the gap microstrip antenna is made of Rogers RO4358B material；
Gap microstrip antenna is rounded, radius 25mm, Microstrip Length 20mm, and micro-strip width is 2mm；It is centrally located on floor
Gap length be 16mm, gap width 3mm, the gap length direction and Microstrip Length direction are perpendicular；It is same on floor
The outer diameter of shaft cable is 4mm, internal diameter 2mm；
For major and minor axis axis than the ellipse element patch for 3, long axis length 14mm, minor axis length 4.67mm, adjacent rows it
Between spacing be 1mm, adjacent ellipses unit patch distance 2.3mm in every row.
10. the frequency reconfigurable antenna according to claim 5 based on super surface, which is characterized in that
The dielectric-slab of the gap microstrip antenna is made of Rogers RO4358B material；
Gap microstrip antenna is rounded, radius 25mm, Microstrip Length 20mm, and micro-strip width is 2mm；It is centrally located on floor
Gap length be 16mm, gap width 3mm, the gap length direction and Microstrip Length direction are perpendicular；It is same on floor
The outer diameter of shaft cable is 4mm, internal diameter 2mm；
For major and minor axis axis than the ellipse element patch for 1, the radius of ellipse element patch is 7mm, and spacing is between adjacent rows
1mm, adjacent ellipses unit patch distance 2.3mm in every row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910625552.4A CN110265783A (en) | 2019-07-11 | 2019-07-11 | Frequency reconfigurable antenna based on super surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910625552.4A CN110265783A (en) | 2019-07-11 | 2019-07-11 | Frequency reconfigurable antenna based on super surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110265783A true CN110265783A (en) | 2019-09-20 |
Family
ID=67925737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910625552.4A Pending CN110265783A (en) | 2019-07-11 | 2019-07-11 | Frequency reconfigurable antenna based on super surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110265783A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695596A (en) * | 2018-05-07 | 2018-10-23 | 清华大学 | Restructural sensing antenna based on non-contact rotatable communication |
-
2019
- 2019-07-11 CN CN201910625552.4A patent/CN110265783A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695596A (en) * | 2018-05-07 | 2018-10-23 | 清华大学 | Restructural sensing antenna based on non-contact rotatable communication |
Non-Patent Citations (1)
| Title |
|---|
| 祖亚运: "散射参数法在二维超表面电磁均一化中的应用", 《万方学位论文数据库》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Makwana et al. | Wideband stacked rectangular dielectric resonator antenna at 5.2 GHz | |
| Bangi et al. | Moore, Minkowski and Koch curves based hybrid fractal antenna for multiband applications | |
| Pandit et al. | A low-profile high-gain substrate-integrated waveguide-slot antenna with suppressed cross polarization using metamaterial | |
| CN107425275A (en) | A kind of transmission line and leaky-wave antenna multiplexing device and its beam sweeping method | |
| Ramaccia et al. | Exploiting intrinsic dispersion of metamaterials for designing broadband aperture antennas: Theory and experimental verification | |
| Hamad et al. | Bandwidth extension of ultra-wideband microstrip antenna using metamaterial double-side planar periodic geometry | |
| Boddapati et al. | Bandwidth enhancement of CPW-fed elliptical curved antenna with square SRR | |
| Dewan et al. | Multiband frequency-reconfigurable antenna using metamaterial structure of electromagnetic band gap | |
| Kaur et al. | A complementary Sierpinski gasket fractal antenna array for wireless MIMO portable devices | |
| Ashok Kumar et al. | Design of CPW-fed inverted six shaped antenna for IoT applications | |
| Kaur et al. | Artificial neural network based metasurface inspired planar frequency reconfigurable antenna for wireless applications | |
| Bora et al. | Design and analysis of EBG antenna for Wi-Fi, LTE, and WLAN applications | |
| Chang et al. | Wideband triangular-cavity-cascaded antennas | |
| CN110265783A (en) | Frequency reconfigurable antenna based on super surface | |
| Bakshi et al. | Sapphire stacked rectangular dielectric resonator aperture coupled antenna for C-band applications | |
| Priyadharshini et al. | Novel ENG metamaterial for gain enhancement of an off-set fed CPW concentric circle shaped patch antenna | |
| Toktas et al. | Ultra-wideband monopole antenna with defected ground for millimeter-wave applications | |
| Ntokos et al. | A systematic approach for reconfigurable reflecting metasurface synthesis: From periodic analysis to far-field scattering | |
| Tewari et al. | A compact quad‐band circular cavity backed substrate integrated waveguide antenna for millimeter wave applications | |
| Ikonen et al. | Light-weight base station antenna with artificial wire medium lens | |
| Ismail et al. | The development of miniaturized wearable DRA with a wideband circular polarization | |
| Banerjee et al. | Compact one-sixth mode substrate integrated waveguide based antennas for wireless communication and public safety systems | |
| Kaur et al. | Metasurface incorporated frequency reconfigurable planar antenna for wireless applications | |
| Kirilenko et al. | A way to realize a multi-frequency polarization plane rotator | |
| Prasad et al. | Design of Parallelly Window Slotted Multiband Miniaturized MIMO Antenna for Future Mobile Communications |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190920 |
|
| RJ01 | Rejection of invention patent application after publication |