CN106025564A - Transmission beam control method employing multi-layer FSSs - Google Patents
Transmission beam control method employing multi-layer FSSs Download PDFInfo
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- CN106025564A CN106025564A CN201610409929.9A CN201610409929A CN106025564A CN 106025564 A CN106025564 A CN 106025564A CN 201610409929 A CN201610409929 A CN 201610409929A CN 106025564 A CN106025564 A CN 106025564A
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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
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
- H01Q15/0026—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective said selective devices having a stacked geometry or having multiple layers
Abstract
The invention discloses a transmission beam control method employing multi-layer FSSs. The method comprises the steps of: (1) constructing multi-layer miniaturization frequency selective surface units; (2) determining the sizes of the frequency selective surface units; (3) forming multi-layer frequency selective surfaces FSSs; (4) building the multi-layer frequency selective surfaces FSSs with different pitch angles; (5) building the multi-layer frequency selective surfaces FSSs with different azimuth angles; (6) forming a transmission array antenna; and (7) replacing the multi-layer frequency selective surfaces FSSs. By the transmission beam control method, the large-angle beam control of a transmitting antenna can be effectively achieved; and meanwhile, a high gain effect of the transmitting antenna can be well achieved.
Description
Technical field
The invention belongs to electronic technology field, further relate to a kind of employing in electromagnetic material technical field many
The transmission wave beam regulation and control method of layer frequency-selective surfaces FSS (Frequecy Selective Surface), the present invention
The wide-angle wave beam regulation and control of antenna can be realized launching, the high-gain effect of antenna can be realized launching simultaneously well
Really.
Background technology
Frequency-selective surfaces refers to be made up of according to two dimension or three-dimensional periodic arrangement mutually isostructural unit
A kind of array structure, band-stop response or bandpass characteristics can be formed in particular job frequency range.In recent years,
The setting of miniaturization unit of a kind of multilamellar disresonance structure composition is proposed on the basis of traditional multilamellar FSS
Meter method, utilizes the method can be with small design and bandpass-type FSS with broadband performance, and it has one and is
Row feature performance benefit: frequency selects characteristic good, and angle stability is good, can obtain the biggest phase when the unit number of plies is the most
Shifting scope, can be better achieved the miniaturization of transmission unit, the most advantageously in the main beam to radiation
Angle regulates and controls.
Huawei Tech Co., Ltd propose patent application " beam selection method and base station " (application number:
20140122995.9, publication number: 104955061A) in disclose a kind of beam selection method and base station, its
In, this beam selection method includes: the base station antenna by each wave beam, accepts the detection reference of subscriber equipment
Signal SRS, wherein, each wave beam includes a broad beam and at least two narrow beam.But, the method
Weak point be that the degree of freedom that main wave-wave bundle is regulated and controled by antenna is the biggest, it is impossible to realize the wave beam of greater angle
Regulation and control.
The patent application that high and new technology industrial development zone, Ningbo Ning Yuan science service company limited proposes be " a kind of antenna and FSS system
Construction method " (application number: 201510154646.X, publication number: 104716425A) discloses a kind of sky
Line and the construction method of FSS system.The method, by designing the phased array antenna of a Sidelobe, emulates
Go out its radiation characteristic, then FSS antenna house and phased array antenna are carried out integrated modelling emulation, by right
The ratio gain pattern of antenna/FSS system Yu former phased array antenna, analyzes different units structure and the FSS of size
The impact that antenna gain and minor level are produced by antenna house, and make one's options, the method effectively reduces design
Complexity, improve design efficiency.But, the weak point that the method yet suffers from is, uses monolayer
The gain launching antenna of frequency-selective surfaces composition is relatively low, does not have higher efficiency of transmission.
Patent application " a kind of automatically controlled beam scanning reflective array antenna and the beam scanning thereof that University of Electronic Science and Technology proposes
Method " (application number: 20150200825.2, publication number: 104779442A) discloses a kind of low cost,
Low-loss, the automatically controlled beam scanning reflective array antenna of simple in construction and beam sweeping method thereof.This antenna have employed
Two initial feeds are irradiated excitation to reflection front, and the amplitude different by change feed 1 and feed 2 swashs
Encourage ratio to change total in-field in the phase value distribution of front, thus realize automatically controlled beam scanning.This antenna is tied
Structure is simple, it is not necessary to extra biasing circuit, easy to process.But, the weak point of the method is that needs are many
Individual feed feeds, and requires complex to feeding network, and is difficulty with the wide angle scanning of main beam.
Patent application " a kind of beam switching method " that Beijing University of Post & Telecommunication proposes (application number:
20130660234.9, publication number: 103607233A) in disclose a kind of beam switching method, the present invention's
Beam switching method, switches in the hot wave beam marked off periodically carries out wave beam, during to reach switching between wave beam
The purpose that minimizing needs to switch the number of subcarrier has taken into account overall performance and the real time business of system simultaneously,
Effectively improve the efficiency of beam switchover.But, the weak point that this invention yet suffers from is, radiation beam
The change in direction does not have seriality, and sensitivity is relatively low, has some limitations in wave beam regulation and control application.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, propose a kind of to use the saturating of multilamellar FSS
Ejected wave bundle regulation and control method.
The basic ideas that the present invention realizes are, first separately design the multilamellar of correspondence according to different transmission beam directions
Frequency-selective surfaces, then keeps feed location constant, obtains by changing different Multilayer Frequency-Selective Surfaces
Obtain the transmitted wave in different beams direction, it is achieved the wave beam regulation and control of transmitted wave.
For achieving the above object, to realize step as follows for the present invention:
(1) structure multi-layer compact frequency-selective surfaces unit:
The choosing of multi-layer compact frequency is vertically formed by three layers of square metal paster and two-layer square metal ring
Selecting surface cell, every layer of square metal paster uses spaced mode with every layer of square metal ring.
(2) frequency-selective surfaces each unit size is determined:
(2a) various sizes of multi-layer compact frequency-selective surfaces unit is emulated, obtain each difference
The transmission phase place of size multi-layer compact frequency-selective surfaces unit, transmission phase place being arranged is a phase place and chi
The relation table of very little correspondence.
(2b) range site radiation field formulas, calculate each multi-layer compact frequency-selective surfaces unit wait mend
Repay transmission phase place.
(2c) from relation table, search the multi-layer compact frequency corresponding to each transmission phase place to be compensated and select
The size of surface cell.
(3) composition Multilayer Frequency-Selective Surfaces FSS:
According to M × N, multi-layer compact frequency-selective surfaces unit is arranged into array, and composition multilamellar frequency selects
Surface FSS.
(4) Multilayer Frequency-Selective Surfaces FSS of the different angle of pitch of structure:
(4a) from relation table, the multilamellar frequency of 0 °, 30 °, 45 °, 60 ° four angles of pitch correspondence respectively is searched
Rate selects the size of each position unit of surface FSS.
(4b) by each position unit size found out, composition Multilayer Frequency-Selective Surfaces FSS array is made
Multi-layer compact frequency-selective surfaces unit corresponding to each position.
(4c) multi-layer compact frequency-selective surfaces unit is arranged into array according to M × N, builds four respectively
Multilayer Frequency-Selective Surfaces FSS corresponding to the individual angle of pitch.
(5) Multilayer Frequency-Selective Surfaces FSS of structure different orientations:
(5a) when searching 30 ° of angles of pitch from relation table, 30 °, 45 °, 60 ° three azimuths correspondences respectively
The size of each position unit of Multilayer Frequency-Selective Surfaces FSS.
(5b) by each position unit size when finding out 30 ° of angles of pitch, make composition multilamellar frequency and select table
The multi-layer compact frequency-selective surfaces unit corresponding to each position of face FSS array.
(5c) multi-layer compact frequency-selective surfaces unit is arranged into array according to M × N, builds three respectively
Multilayer Frequency-Selective Surfaces FSS corresponding to individual azimuth.
(6) composition transmission array antenna:
(6a) with X-band electromagnetic horn as feed.
(6b) Multilayer Frequency-Selective Surfaces FSS corresponding to 0 ° of angle of pitch is placed on the central axial of feed
Place.
(7) Multilayer Frequency-Selective Surfaces FSS is changed:
(7a) by 30 °, 45 °, 60 ° of Multilayer Frequency-Selective Surfaces FSS that three angles of pitch are corresponding, replace respectively
Multilayer Frequency-Selective Surfaces FSS corresponding to 0 ° of angle of pitch, produces the saturating of 30 °, 45 °, 60 ° three angles of pitch
Ejected wave.
(7b) by 30 °, 45 °, 60 ° of Multilayer Frequency-Selective Surfaces FSS that three azimuths are corresponding, replace respectively
Change 0°Multilayer Frequency-Selective Surfaces FSS corresponding to the angle of pitch, produce 30 °, 45 °, 60 ° three azimuthal
Transmitted wave.
The present invention compared with prior art has the advantage that
First, owing to the present invention uses Multilayer Frequency-Selective Surfaces composition to launch antenna, overcome prior art and deposit
Antenna degree of freedom that main wave-wave bundle is regulated and controled the biggest, it is impossible to realize the asking of wave beam regulation and control of greater angle
Topic so that the present invention be provided with 0 °～60 ° scope of the angle of pitch wave beam regulate and control and azimuth at any angle
The advantage that wave beam controls.
Second, owing to the present invention uses Multilayer Frequency-Selective Surfaces composition to launch antenna, overcome prior art and deposit
Use monolayer frequency-selective surfaces composition launch antenna gain relatively low, not there is higher efficiency of transmission
Problem so that the present invention is provided with high-gain transmission and the advantage of bigger wave beam deflection characteristic.
3rd, owing to the present invention uses the electromagnetic horn in the central axial direction being positioned at Multilayer Frequency-Selective Surfaces to make
For feed, the multiple feed of needs overcoming prior art existence feeds, and requires the most multiple to feeding network
Miscellaneous, and the problem being difficulty with the wide angle scanning of main beam so that it is simple that the present invention is provided with feeding network,
The simple advantage of practical operation.
4th, owing to the present invention uses different Multilayer Frequency-Selective Surfaces FSS of replacing to carry out wave beam regulation and control,
The change overcoming the radiation beam direction that prior art exists does not has seriality, and sensitivity is relatively low, at wave beam
The problem having some limitations in regulation and control application so that the present invention is provided with radiation beam direction and changes continuously
Property, the easy advantage of wave beam control manipulation.
Accompanying drawing explanation
Fig. 1 is the flow chart of the present invention；
Fig. 2 is the multi-layer compact frequency-selective surfaces cellular construction schematic diagram of the present invention；
Fig. 3 is the corresponding relation figure of invention unit size and the phase information of cell position；
Fig. 4 is the multi-layer compact frequency-selective surfaces schematic diagram that the difference angle of pitch of the present invention is corresponding；
Fig. 5 is the multi-layer compact frequency-selective surfaces schematic diagram that different orientations of the present invention is corresponding；
Fig. 6 is antenna that the difference angle of pitch of the present invention the is corresponding gain characteristic figure at 10GHz；
Fig. 7 is antenna corresponding to different orientations of the present invention gain characteristic figure at 10GHz.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail.
Referring to the drawings 1, the present invention is embodied as step and is described in further detail.
Step 1, constructs multi-layer compact frequency-selective surfaces unit.
The choosing of multi-layer compact frequency is vertically formed by three layers of square metal paster and two-layer square metal ring
Selecting surface cell, every layer of square metal paster uses spaced mode with every layer of square metal ring.
The length of side of every layer of square metal paster is P, and the width of every layer of square metal ring is the span of w, P
For 1mm≤P≤8mm, the span of w is 0.5mm≤w≤4mm.
Every layer of square metal paster is attached to the upper surface of dielectric-slab, and every layer of square metal ring is attached to dielectric-slab
Lower surface, each multi-layer compact frequency-selective surfaces unit uses four layers of dielectric-slab, and every layer of dielectric-slab thickness is equal
For h=1.5mm, the length of side is D=10mm, and dielectric constant is 2.65.
Step 2, determines frequency-selective surfaces each unit size.
Utilize the infinite period model floquent port in simulation software HFSS to various sizes of multi-layer compact
Change frequency-selective surfaces unit to emulate, obtain each different size multi-layer compact frequency-selective surfaces unit
Transmission phase place, transmission phase place being arranged is the phase place relation table corresponding with size.
Range site radiation field formulas, calculates the transmission to be compensated of each multi-layer compact frequency-selective surfaces unit
Phase place.
Radiation field of each element formula is as follows:
Wherein,Represent the radiant intensity of multi-layer compact frequency-selective surfaces cell position,Represent arbitrarily
Direction vector, M represents the line number that Multilayer Frequency-Selective Surfaces FSS is total, and ∑ represents that sum operation, m represent
The m row of Multilayer Frequency-Selective Surfaces FSS, N represents the columns that Multilayer Frequency-Selective Surfaces FSS is total, n
Representing the n-th row of Multilayer Frequency-Selective Surfaces FSS, F () represents the antenna pattern of feed,Represent
The position vector of the multi-layer compact frequency-selective surfaces unit of m row the n-th row,Represent that feed location is vowed
Amount, A () represents the antenna pattern of multi-layer compact frequency-selective surfaces unit,For the main ripple of transmitted wave
Shu Fangxiang, exp{ } represent the exponential function with e as the truth of a matter, j represents imaginary unit, k0Represent wave vector, | |
Represent absolute value, φCIt it is the compensation phase place of each multi-layer compact frequency-selective surfaces unit.
From relation table, search the multi-layer compact frequency-selective surfaces list corresponding to each transmission phase place to be compensated
The size of unit.
Step 3, forms Multilayer Frequency-Selective Surfaces FSS.
According to M × N, multi-layer compact frequency-selective surfaces unit is arranged into array, and composition multilamellar frequency selects
Surface FSS.
M represents the line number that Multilayer Frequency-Selective Surfaces FSS is total, 1≤M≤50, and N represents that multilamellar frequency selects
The columns that surface FSS is total, 1≤N≤50.
Step 4, builds Multilayer Frequency-Selective Surfaces FSS of the different angle of pitch.
From relation table, the multilamellar frequency searching 0 °, 30 °, 45 °, 60 ° four angles of pitch correspondence respectively selects
The size of each position unit of surface FSS.
By each position unit size found out, make the every of composition Multilayer Frequency-Selective Surfaces FSS array
Put corresponding multi-layer compact frequency-selective surfaces unit.
Multi-layer compact frequency-selective surfaces unit is arranged into array according to M × N, builds four pitching respectively
Multilayer Frequency-Selective Surfaces FSS corresponding to angle.
Step 5, builds Multilayer Frequency-Selective Surfaces FSS of different orientations.
When searching 30 ° of angles of pitch from relation table, the multilamellar of 30 °, 45 °, 60 ° three azimuths correspondences respectively
The size of each position unit of frequency-selective surfaces FSS.
By each position unit size when finding out 30 ° of angles of pitch, make composition Multilayer Frequency-Selective Surfaces FSS
Multi-layer compact frequency-selective surfaces unit corresponding to each position of array.
Multi-layer compact frequency-selective surfaces unit is arranged into array according to M × N, builds three orientation respectively
Multilayer Frequency-Selective Surfaces FSS corresponding to angle.
Step 6, forms transmission array antenna.
With X-band electromagnetic horn as feed.
Multilayer Frequency-Selective Surfaces FSS corresponding to 0 ° of angle of pitch is placed on the central axial place of feed.
Step 7, changes Multilayer Frequency-Selective Surfaces FSS.
By 30 °, 45 °, 60 ° of Multilayer Frequency-Selective Surfaces FSS that three angles of pitch are corresponding, replace 0 ° respectively and bow
Multilayer Frequency-Selective Surfaces FSS corresponding to the elevation angle, produces the transmitted wave of 30 °, 45 °, 60 ° three angles of pitch.
Embodiments of the invention 1 illustrate that the antenna that 0 ° of angle of pitch is corresponding realizes wave beam regulation and control, and can improve antenna and increase
Benefit, design main lobe direction is θ=0 °,Transmission array antenna, can calculate each according to radiation field of each element formula
The transmission phase information that need to compensate at cell position, Fig. 4 (a) is that the planar transmission battle array 1 that 0 ° of angle of pitch is corresponding is illustrated
Figure, is placed on this transmission array above X-band standard horn at 100mm, forms transmission array antenna 1.
Embodiments of the invention 2 illustrate that the antenna that 30 ° of angles of pitch are corresponding realizes wave beam regulation and control, and can improve antenna
Gain, design main lobe direction is θ=30 °,Transmission array antenna, according to radiation field of each element formula computing unit
Phase information, Fig. 4 (b) is planar transmission battle array 2 schematic diagram that 30 ° of angles of pitch are corresponding, and this transmission array is placed on X
Above wave band standard horn at 100mm, form transmission array antenna 2.
Embodiments of the invention 3 illustrate that the antenna that 45 ° of angles of pitch are corresponding realizes wave beam regulation and control, and can improve antenna
Gain, design main lobe direction in θ=45 °,Transmission array antenna, by radiation field of each element formula computing unit phase
Position information, Fig. 4 (c) is planar transmission battle array 3 schematic diagram that 45 ° of angles of pitch are corresponding, and this transmission array is placed on X
Above wave band standard horn at 100mm, form transmission array antenna 3.
Embodiments of the invention 4 illustrate that the antenna that 60 ° of angles of pitch are corresponding realizes wave beam regulation and control, and can improve antenna
Gain, design main lobe direction in θ=60 °,Transmission array antenna, by radiation field of each element formula computing unit phase
Position information, Fig. 4 (d) is planar transmission battle array 4 schematic diagram that 60 ° of angles of pitch are corresponding, and transmission array 4 distance is at X ripple
Segment standard loudspeaker 100mm, forms transmission array antenna 4.
By 30 °, 45 °, 60 ° of Multilayer Frequency-Selective Surfaces FSS that three azimuths are corresponding, replace 0 respectively°Bow
Multilayer Frequency-Selective Surfaces FSS corresponding to the elevation angle, produces 30 °, 45 °, 60 ° of three azimuthal transmitted waves.
Embodiments of the invention 5 illustrate that antenna corresponding to 30 ° of azimuths realizes wave beam regulation and control, and can improve antenna
Gain, its angle of pitch direction selected is θ=30 °, set azimuth direction asFirst according to unit spoke
Penetrating a formula and calculate the phase information of array element, Fig. 5 (a) is that transmission array 5 corresponding to 30 ° of azimuths is illustrated
Figure, utilizes above transmission array to form transmission array antenna 5 with Feed Horn.
Embodiments of the invention 6 illustrate that antenna corresponding to 45 ° of azimuths realizes wave beam regulation and control, and can improve antenna
Gain, its angle of pitch direction selected is θ=30 °, set azimuth direction asFirst according to unit spoke
Penetrating a formula and calculate the phase information of array element, Fig. 5 (b) is the transmission array 6 that 45 ° of azimuths are corresponding, utilizes
Above transmission array forms transmission array antenna 6 with Feed Horn.
Embodiments of the invention 7 illustrate that antenna corresponding to 60 ° of azimuths realizes wave beam regulation and control, and can improve antenna
Gain, its angle of pitch direction selected is θ=30 °, set azimuth direction asFirst according to unit spoke
Penetrating a formula and calculate the phase information of array element, Fig. 5 (c) is the transmission array 7 that 60 ° of azimuths are corresponding, profit
Transmission array antenna 7 is formed with Feed Horn by above transmission array.
Referring to the drawings 2, the multi-layer compact frequency-selective surfaces unit using the present invention is further described.
Fig. 2 (a) is multi-layer compact frequency-selective surfaces cellular construction schematic diagram, and this unit is square by three layers
Metal patch 1 and two-layer square metal ring 2 vertically form, every layer of square metal paster 1 and every layer of side
Shape becket 2 uses spaced mode.Every layer of square metal paster is attached to the upper surface of dielectric-slab, often
Layer square metal ring is attached to the lower surface of dielectric-slab, and each multi-layer compact frequency-selective surfaces unit uses four
Layer dielectric-slab, every layer of dielectric-slab thickness is h=1.5mm, and the length of side is D=10mm, and dielectric constant is 2.65,
In working frequency range, its loss is tan δ=0.001.Fig. 2 (b) is square metal paster 1 schematic diagram, square
The length of side of metal patch 1 be the span of P, P be 1mm≤P≤8mm, Fig. 2 (c) is square metal
Ring 2 schematic diagram, the width of square metal ring 2 be the span of w, w be 0.5mm≤w≤4mm.
Referring to the drawings 3, medium frequency of the present invention is selected the right of surface each unit size and position phase information
Should be related to and be further described.
Fig. 3 (a) is the corresponding relation figure of square metal paster 1 size and transmission phase place, square curve, circular song
Line and trigonometric curve represent a width of w=2.25mm of square metal ring 2 respectively, when w=1.5mm, w=0.5mm,
The length of side of metal patch 1 changes between 1mm-8mm transmits phase place to multi-layer compact frequency-selective surfaces unit
Influence curve.Fig. 3 (b) is the corresponding relation figure of square metal ring 2 size and transmission phase place, square curve,
Circular curve and trigonometric curve represent that square metal paster 1 length of side is P=4mm respectively, P=5.5mm, P=7mm
Time, the width of becket 2 changes multi-layer compact frequency-selective surfaces unit transmission phase between 0.5mm-4mm
The influence curve of position.
Referring to the drawings 6, the gain characteristic of the transmission array antenna corresponding to the angles of pitch different in the present invention is done further
Description.Fig. 6 is that four angles of pitch distinguish corresponding transmission array antenna and Feed Horn antenna at 10GHz
Upper half-space gain curve, wherein transverse axis is the direction of the angle of pitch, and the longitudinal axis is antenna gain, transmission array antenna
The 1 antenna gain curve arriving the most corresponding 0 °, 30 °, 45 °, the 60 ° angle of pitch of transmission array antenna 4, Feed Horn
What antenna was corresponding is the antenna gain curve not using multilamellar FSS, and feed main beam is all achieved by transmission array
Significantly wave beam narrows, and the gain of relative Feed Horn has been respectively increased 11.4dB, 10.2dB, 9dB, 7.4dB,
And the wave beam of feed antenna is realized transmission array antenna 4 main beam of wide-angle regulation and control relative to transmission array antenna 1
For, gain only have dropped 4dB, and gain characteristic is good.
Referring to the drawings 7, the gain characteristic of the transmission array antenna corresponding to different orientations in the present invention is done further
Description.Fig. 7 is that corresponding transmission array antenna and Feed Horn antenna are distinguished at 10GHz in three azimuths
Upper half-space gain curve, wherein transverse axis is the direction of deflection, and the longitudinal axis is antenna gain, square curve,
When circular curve and trigonometric curve represent the θ=30 ° angle of pitch, azimuth is respectively
Antenna gain curve, the main lobe gain of three antennas is basic and transmission array antenna 2 is in θ=30 °,The increasing of point
Benefit is roughly the same, is about 23dB, and relative feed antenna gain improves more than 10dB.
These are only seven embodiments of inventive antenna, do not constitute any limitation of the invention, it is clear that at this
Under the design of invention, the structure and parameter of the present invention can be modified, and then obtain applying of the present invention
In realizing antenna high-gain and the characteristic of wave beam regulation and control well, but these are all at the row of protection of the present invention.
Claims (5)
1. use a transmission wave beam regulation and control method for multilamellar FSS, comprise the following steps that
(1) structure multi-layer compact frequency-selective surfaces unit:
Multi-layer compact frequency-selective surfaces is vertically formed by three layers of square metal paster and two-layer square metal ring
Unit, every layer of square metal paster uses spaced mode with every layer of square metal ring；
(2) frequency-selective surfaces each unit size is determined:
(2a) various sizes of multi-layer compact frequency-selective surfaces unit is emulated, obtain each different chi
The transmission phase place of very little multi-layer compact frequency-selective surfaces unit, transmission phase place being arranged is that a phase place is corresponding with size
Relation table；
(2b) range site radiation field formulas, calculates the to be compensated of each multi-layer compact frequency-selective surfaces unit
Transmission phase place；
(2c) from relation table, the multi-layer compact frequency selection table corresponding to each transmission phase place to be compensated is searched
The size of face unit；
(3) composition Multilayer Frequency-Selective Surfaces FSS:
Multi-layer compact frequency-selective surfaces unit is arranged into array according to M × N, forms Multilayer Frequency-Selective Surfaces
FSS；
(4) Multilayer Frequency-Selective Surfaces FSS of the different angle of pitch of structure:
(4a) from relation table, the multilamellar frequency choosing of 0 °, 30 °, 45 °, 60 ° four angles of pitch correspondence respectively is searched
Select the size of each position unit of surface FSS；
(4b) by each position unit size found out, each of composition Multilayer Frequency-Selective Surfaces FSS array is made
Multi-layer compact frequency-selective surfaces unit corresponding to position；
(4c) multi-layer compact frequency-selective surfaces unit is arranged into array according to M × N, builds four respectively and bow
Multilayer Frequency-Selective Surfaces FSS corresponding to the elevation angle；
(5) Multilayer Frequency-Selective Surfaces FSS of structure different orientations:
(5a) when searching 30 ° of angles of pitch from relation table, 30 °, 45 °, 60 ° of three azimuths the most corresponding many
The size of each position unit of layer frequency-selective surfaces FSS；
(5b) by each position unit size when finding out 30 ° of angles of pitch, composition Multilayer Frequency-Selective Surfaces FSS is made
Multi-layer compact frequency-selective surfaces unit corresponding to each position of array；
(5c) multi-layer compact frequency-selective surfaces unit is arranged into array according to M × N, builds three sides respectively
Multilayer Frequency-Selective Surfaces FSS corresponding to parallactic angle；
(6) composition transmission array antenna:
(6a) with X-band electromagnetic horn as feed；
(6b) Multilayer Frequency-Selective Surfaces FSS corresponding to 0 ° of angle of pitch is placed on the central axial place of feed；
(7) Multilayer Frequency-Selective Surfaces FSS is changed:
(7a) by 30 °, 45 °, 60 ° of Multilayer Frequency-Selective Surfaces FSS that three angles of pitch are corresponding, replace 0 ° respectively and bow
Multilayer Frequency-Selective Surfaces FSS corresponding to the elevation angle, produces the transmitted wave of 30 °, 45 °, 60 ° three angles of pitch；
(7b) by 30 °, 45 °, 60 ° of Multilayer Frequency-Selective Surfaces FSS that three azimuths are corresponding, replace 0 ° respectively and bow
Multilayer Frequency-Selective Surfaces FSS corresponding to the elevation angle, produces 30 °, 45 °, 60 ° of three azimuthal transmitted waves.
A kind of transmission wave beam regulation and control method using multilamellar FSS the most according to claim 1, it is characterised in that
The length of side of every layer of square metal paster described in step (1) is P, and the width of every layer of square metal ring is w, P's
Span is 1mm≤P≤8mm, and the span of w is 0.5mm≤w≤4mm.
A kind of transmission wave beam regulation and control method using multilamellar FSS the most according to claim 1, it is characterised in that
Every layer of square metal paster described in step (1) is attached to the upper surface of dielectric-slab, every layer of square metal ring attachment
At the lower surface of dielectric-slab, each multi-layer compact frequency-selective surfaces unit uses four layers of dielectric-slab, every layer of dielectric-slab
Thickness is h=1.5mm, and the length of side is D=10mm, and dielectric constant is 2.65.
A kind of transmission wave beam regulation and control method using multilamellar FSS the most according to claim 1, it is characterised in that
Radiation field of each element formula described in step (2b) is as follows:
Wherein,Represent the radiant intensity of multi-layer compact frequency-selective surfaces cell position,Represent any direction
Vector, M represents the line number that Multilayer Frequency-Selective Surfaces FSS is total, and ∑ represents that sum operation, m represent multilamellar frequency
Selecting the m row of surface FSS, N represents the columns that Multilayer Frequency-Selective Surfaces FSS is total, and n represents that multilamellar frequency is selected
Selecting n-th row of surface FSS, F () represents the antenna pattern of feed,Represent the multilamellar of m row the n-th row
The position vector of miniaturization frequency-selective surfaces unit,Representing feed location vector, A () represents multi-layer compact
Change the antenna pattern of frequency-selective surfaces unit,For transmitted wave main beam direction, exp{ } represent with e as the truth of a matter
Exponential function, j represents imaginary unit, k0Represent wave vector, | | represent absolute value, φCIt it is each multi-layer compact
The compensation phase place of frequency-selective surfaces unit.
A kind of transmission wave beam regulation and control method using multilamellar FSS the most according to claim 1, it is characterised in that
M described in step (3), step (4c), step (5c) represents the line number that Multilayer Frequency-Selective Surfaces FSS is total,
1≤M≤50, N represents the columns that Multilayer Frequency-Selective Surfaces FSS is total, 1≤N≤50.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610409929.9A CN106025564B (en) | 2016-06-13 | 2016-06-13 | A kind of transmission wave beam regulation method using multilayer FSS |
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| CN201610409929.9A CN106025564B (en) | 2016-06-13 | 2016-06-13 | A kind of transmission wave beam regulation method using multilayer FSS |
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| CN106654567A (en) * | 2017-01-20 | 2017-05-10 | 浙江大学 | Miniature high-performance and high-band communication antenna cover of capacitive and sensitive surface coupling mechanism |
| CN106816718A (en) * | 2017-01-20 | 2017-06-09 | 电子科技大学 | A kind of Sidelobe sharp cut-off flat-topped beam antenna for base station and method for designing |
| CN108832302A (en) * | 2018-05-03 | 2018-11-16 | 西安电子科技大学 | A kind of phase gradient super surface system in bifrequency biradial direction |
| CN109490654A (en) * | 2018-07-13 | 2019-03-19 | 中国航空工业集团公司济南特种结构研究所 | A kind of multilayer FSS screen thunder and lightning coupling effect experimental rig and test method |
| CN110048201A (en) * | 2019-05-24 | 2019-07-23 | 中国计量大学上虞高等研究院有限公司 | Multiband Terahertz bandstop filter |
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| CN106816718A (en) * | 2017-01-20 | 2017-06-09 | 电子科技大学 | A kind of Sidelobe sharp cut-off flat-topped beam antenna for base station and method for designing |
| CN106816718B (en) * | 2017-01-20 | 2020-09-11 | 电子科技大学 | Low sidelobe sharp cutoff flat-top beam base station antenna and design method |
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| CN110048201A (en) * | 2019-05-24 | 2019-07-23 | 中国计量大学上虞高等研究院有限公司 | Multiband Terahertz bandstop filter |
| CN110048201B (en) * | 2019-05-24 | 2020-10-13 | 中国计量大学上虞高等研究院有限公司 | Multi-band terahertz band elimination filter |
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