CN102629707B - Antenna housing for reducing minor lobe level by using artificial structure material - Google Patents

Antenna housing for reducing minor lobe level by using artificial structure material Download PDF

Info

Publication number
CN102629707B
CN102629707B CN201210105092.0A CN201210105092A CN102629707B CN 102629707 B CN102629707 B CN 102629707B CN 201210105092 A CN201210105092 A CN 201210105092A CN 102629707 B CN102629707 B CN 102629707B
Authority
CN
China
Prior art keywords
row
annulus
size
radome
minor level
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.)
Active
Application number
CN201210105092.0A
Other languages
Chinese (zh)
Other versions
CN102629707A (en
Inventor
黄成�
罗先刚
冯沁
蒲明博
王民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institute of Optics and Electronics of CAS
Original Assignee
Institute of Optics and Electronics of CAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Institute of Optics and Electronics of CAS filed Critical Institute of Optics and Electronics of CAS
Priority to CN201210105092.0A priority Critical patent/CN102629707B/en
Publication of CN102629707A publication Critical patent/CN102629707A/en
Application granted granted Critical
Publication of CN102629707B publication Critical patent/CN102629707B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention discloses an antenna housing for reducing minor lobe level by using an artificial structure material. 2ni columns and mj rows of annular slot unit structures are printed on a single-face copper-clad microwave dielectric plate in the transverse direction and the longitudinal direction respectively, wherein the transversely arranged annular slot unit structures have similar structure appearances and different sizes and are symmetrically distributed along the transverse central axis of the antenna housing; the longitudinally arranged annular slot unit structures are completely the same; and chip resistors are transversely, symmetrically and additionally arranged in each annular slot structure. By rationally selecting the resistance size of the resistors and designing the size of unit structures of the artificial structure material, electromagnetic wave has different transmittance rates and the same transmission phase through each columns of structures, so that the aim of reducing the minor lobe level of the antenna is fulfilled; and the structure has the advantages of simple design, light weight and low cost.

Description

A kind of radome that utilizes artificial structure's material to reduce minor level
Technical field
The present invention relates to a kind of radome, particularly a kind of radome that utilizes artificial structure's material to reduce minor level.
Background technology
Minor level level is to weigh the important indicator of array antenna performance.Lower minor level can effectively reduce the phase mutual interference of array antenna radiated electromagnetic wave, improves signal capture efficiency, improves signal to noise ratio.Therefore, how to realize lower minor level is the problem that researcher is concerned about always.Common low-sidelobe level array antenna method for designing mainly contains two kinds: optimize power of radiation source proportioning and improve antenna unit structure profile.Optimization by simulated annealing, genetic algorithm, weighting algorithm etc. to power of radiation source proportioning, can effectively control minor level.By improving aerial array profile, also can reduce antenna side lobe level simultaneously, as trumpet type, pyramid, notch cuttype etc.
Optimizing power of radiation source proportioning is by design optimization feed radiant power, has certain oscillator intensity and distributes, thereby reach the object that reduces array antenna minor level while making electromagnetic wave outgoing.This control methods require the power of a plurality of radiation sources to carry out conscientious calculation optimization, and accurately control, and to antenna rear end, require higher.Another is conventional reduce antenna side lobe level method--improve antenna unit structure profile, this method can change the profile of antenna conventionally, can make its difficulty of processing increase cause cost to improve or antenna volume becomes and causes greatly integrated difficulty.
There is in recent years a kind of novel artificial structure's material, by the construction unit of designing material, can effectively control electromagnetic radiation.At present, the application study of artificial structure's material aspect antenna mainly concentrates on the radiance that how effectively improves antenna, as improved gain, widen bandwidth of operation, realizing polarization conversion and wave beam deflection etc.And the research that utilizes artificial structure's material to reduce antenna side lobe aspect as radome have not been reported.
Summary of the invention
Technical solution of the present invention: overcome the deficiencies in the prior art, provide a kind of artificial structure's of utilization material to reduce the radome of minor level, by designing material cellular construction size and optimization Chip-R resistance, make the electromagnetic wave that antenna (battle array) gives off there is different transmitance amplitudes and identical radiance phase place in through radome different lines, when transmitance amplitude meets when necessarily arranging, can effectively reduce the minor level of antenna (battle array).
The technical solution adopted for the present invention to solve the technical problems is: a kind of radome that utilizes artificial structure's material to reduce minor level, it is characterized in that: at one side, cover on the microwave-medium plate 1 of copper, take length p as cycle (< p < 2 * λ/3, λ/4), λ is operation wavelength, prints respectively 2n irow * m j row annulus structure 2, wherein n representative is listed as, and m represents row, and i represents columns, and j represents line number; 2n i row annulus structure 2 is laterally arranged, and every row have similar construction profile and different size dimensions, and along radome transverse center axial symmetry, m j row annulus structure 2 is longitudinally arranged, and construction profile is identical with size dimension; In the gap 3 of each annulus structure, along lateral symmetry, add Chip-R R, so far form artificial structure's material that can reduce minor level.By selecting the size of the Chip-R R resistance size annulus structure that also design is laterally arranged, make electromagnetic wave there is different transmitances and identical transmission phase by every row annulus structure.Using this artificial structure's material as radome, be placed in aerial array top and just can realize the object that reduces antenna side lobe level.
Described 2n i row annulus structure 2 and m jthe radiating antenna bore that the i of row annulus structure 2 and the quantity of j are covered by artificial structure's material radome is determined, makes artificial structure's material size can cover whole antenna.If the caliber size of antenna is La * Wa, require 2 * i * p > La, j * p > Wa.
Described 2n i row annulus structure 2 sizes are determined by required minor level size, according to minor level value, adopt Taylor's distribution or Chebyshev to distribute and calculate n 1to n ithe amplitude ratio of row annulus structure outgoing Electromagnetic wave penetrating percentage, the then counter size of releasing respective column annulus structure.
The size of described Chip-R R resistance is determined by required minor level horizontal size, according to minor level value, adopts Taylor's distribution or Chebyshev to distribute and calculates n 1to n ithe amplitude ratio of the outgoing Electromagnetic wave penetrating percentage of row annulus structure, the counter value of releasing Chip-R R in the structure of respective column annulus then, resistance R span is 1~1000 Ω conventionally.
The present invention's beneficial effect is compared with prior art:
(1) the present invention is the radome that can effectively reduce minor level, without antenna (battle array) profile is done to special optimization, also without antenna array unit being made to loaded down with trivial details unequal power proportion design, only need realize by the construction unit of appropriate design material certain distribution of incident electromagnetism transmitance amplitude, just control antenna (battle array) minor level is big or small effectively.
(2) the present invention also has modern design, simple in structure, lightweight, the advantage that cost is low.Structure of the present invention adopts the mode of single-sided welding Chip-R, and manufacturing process is simple, compares with the method for traditional reduction antenna (battle array) minor level, has the simple novelty of method for designing, volume is little, lightweight, cost is low feature.
Accompanying drawing explanation
Fig. 1 is annulus of the present invention structural representation;
Fig. 2 is this radome overall structure schematic diagram;
Fig. 3 is Electromagnetic wave penetrating percentage distribution of amplitudes modulation schematic diagram;
Fig. 4 is structural representation of the present invention;
Fig. 5 is annulus construction unit transmissivity and transmission phase curve;
Fig. 6 is antenna loading and the far-field radiation directional diagram that does not load artificial structure's material radome contrast.
In figure: 1 represents microwave-medium plate, 2 represent annulus structure, and 3 represent gap.
Embodiment
As shown in Figure 1, in order to make this artificial structure's of utilization material, reduce the radome of minor level, adopt the one side that is printed with annulus to cover copper microwave-medium plate, and adding two Chip-R R along horizontal direction symmetry.In xyz coordinate system, k be incident wave direction along z axle, E be direction of an electric field along x axle, H is that magnetic direction is along y axle.Wherein P represents the unit cycle, and r represents outer shroud radius, and w represents annular gap width, and t represents the thickness of dielectric-slab, and R represents Chip-R.
Fig. 2 is the radome overall structure schematic diagram of invention design.At one side, cover on the microwave-medium plate 1 of copper, print respectively 2n irow * m j row annulus structure 2, wherein 2n irow annulus structure is laterally arranged, and every row have similar construction profile and different size dimensions, and along radome transverse center axial symmetry, m jrow annulus structure is longitudinally arranged, and construction profile is identical with size dimension, in the gap 3 of each annulus structure, along lateral symmetry, adds Chip-R R.Described 2n irow annulus structure and m jthe radiating antenna bore that the i of row annulus structure 2 and the size of j are covered by artificial structure's material radome is determined, makes artificial structure's material size can cover whole antenna.
Fig. 3 has provided plane wave Electromagnetic wave penetrating percentage Modulation and Amplitude Modulation after artificial structure's material.The collimated beam of sound of antenna (battle array) radiation has identical amplitude A 0with identical phase place, through horizontal 2n iafter the modulation of row artificial structure material, often list that the electromagnetic wave phase place of penetrating is identical but amplitude different, be respectively A 1, A 2... A n.Work as A 1: A 2: ... .A nratio while meeting certain condition, the electromagnetic wave of outgoing has low-sidelobe level.
In specific implementation process, radiating antenna consists of slot array antenna, its caliber size is 105mm * 105mm, operating frequency is set as 10.3GHz (λ ≈ 29.12mm), be reduced to-26dB of the minor level of take is target, and while requiring electromagnetic wave through every row artificial structure material, transmitance amplitude distributes by Taylor's function and has identical transmitance phase place.According to antenna aperture size, adopt 8 * unit 8 annulus structure here, i.e. 2n ii=4 in row, m jj=8 in row.Period p=the 15mm of annulus structure, finally the whole radome by artificial structure's material structure is of a size of 120mm * 120mm.Selective sampling number is Taylor's distribution of 4, i.e. minor level R 0=-26dB, waits minor level parameter through calculating Electromagnetic wave penetrating percentage amplitude ratio, be: 1: 0.8401: 0.5779: 0.3745 (from center to edge, due to symmetrical relation, only having listed half here).
In specific implementation process, as shown in Figure 4, these 8 row * 8 row annulus structural printings cover the covering on copper face of microwave-medium plate 1 (adopt Arlon AR 320) of copper at one side, wherein 8 row annulus structures are along radome transverse center axial symmetry, every row have similar construction profile and different size dimensions, 8 row annulus structure 2 longitudinal arrangements, physical dimension is identical; 3 places, gap in each annulus structure 2 add Chip-R R along lateral symmetry, by selecting Chip-R R resistance size and designing the physical dimension of each transverse annular gap structure 2, make electromagnetic wave there is different transmitances and identical transmission phase by every row annulus structure 2, thereby realize the object that reduces antenna side lobe level.According to the transmitance amplitude ratio calculating, first design has the physical dimension of maximum transmission amplitude.The Chip-R symmetry that is 3 Ω by the most common resistance size is added in cellular construction, wide by optimization outer shroud radius r and w seam, obtains maximum transmission A 1, be decided to be row n 1.The transmitance amplitude that record now obtains and corresponding transmitance phase place.In optimizing process afterwards with A 1for normalization denominator, regulate r, the value of w and R, the transmitance amplitude ratio while making electromagnetic wave by every row annulus structure meets aforementioned proportion condition, meets transmitance phase place basicly stable constant simultaneously.Set r ithe outer shroud radius that represents i row, w ithe annulus width that represents i row, R irepresent the resistance size of the Chip-R that add i row annulus, utilize Electromagnetic Simulation software CST or HFSS to optimize the value that can obtain every row annulus construction unit: r 1=r 2=7mm, r 3=6.65mm, r 4=4.2mm, w 1=2.2mm, w 2=2.3mm, w 3=2.2mm, w 4=1mm, R 1=3 Ω, R 2=22.5 Ω, R 3=75 Ω, R 4=315 Ω.Fig. 5 has enumerated n 1corresponding transmitance and the phase curve in row artificial structure unit.At r 1=7mm, w 1=2.2mm, R 1under=3 Ω conditions, at 10.3GHz, obtain maximum transmission amplitude A 1=0.954 and corresponding transmitance phase place.
Fig. 6 is antenna loading and does not load the radiation far-field pattern that artificial structure's material radome obtains, and as can be seen from Figure 6, after loaded antenna cover, antenna side lobe level, from-be reduced to-24.6dB of 13.4dB, approaches Theoretical Design value-26dB.Verified that thus radome proposed by the invention can well realize the object that reduces antenna side lobe level.
Non-elaborated part of the present invention belongs to techniques well known.
Obviously, for the person of ordinary skill of the art, with reference to embodiment mentioned above, also may make other execution mode.Embodiment is above exemplary rather than circumscribed.All modifications within the essence of claim technical scheme of the present invention all belong to its scope required for protection.

Claims (4)

1. utilize artificial structure's material to reduce a radome for minor level, it is characterized in that: the microwave-medium plate (1) that covers copper at one side is upper, the length p of take prints respectively 2n as the cycle irow * m jrow annulus structure (2), λ/4<p<2 * λ/3 wherein, λ is operation wavelength, n representative row wherein, m represent capable, and i represents columns, and j represents line number; Described 2n irow annulus structures (2) are with n i, n i-1... n 1, n 1... n i-1, n iorder transversely arranged, and along radome transverse center axial symmetry, n ithe construction profile of the annulus structure (2) in row is identical with size dimension, m jrow annulus structure (2) the Bing Yan radome longitudinal center axial symmetry of longitudinally arranging, in every a line, the different annulus structure (2) of columns i has similar construction profile and different size dimensions; In the gap (3) of each annulus structure (2), along lateral symmetry, add Chip-R R, so far form artificial structure's material that can reduce minor level; By selecting the size of the Chip-R R resistance size annulus structure (2) that also design is laterally arranged, make electromagnetic wave pass through the annulus structure (2) that columns i is different and have different transmitances and identical transmission phase, the annulus structure (2) identical by columns i has identical transmitance and transmission phase; Using this artificial structure's material as radome, be placed in aerial array top and just can realize the object that reduces antenna side lobe level.
2. a kind of radome that utilizes artificial structure's material to reduce minor level according to claim 1, is characterized in that: described 2n irow annulus structure (2) and m jthe antenna aperture that the i of row annulus structure (2) and the quantity of j are covered by artificial structure's material radome is determined, makes artificial structure's material size can cover whole antenna.
3. a kind of radome that utilizes artificial structure's material to reduce minor level according to claim 1, is characterized in that: described 2n irow annulus structure (2) size is determined by required minor level size, according to minor level value, adopts Taylor's distribution or Chebyshev to distribute and calculates n 1to n ithe amplitude ratio of row gap structure (2) outgoing Electromagnetic wave penetrating percentage, the then counter size of releasing respective column annulus structure (2).
4. a kind of radome that utilizes artificial structure's material to reduce minor level according to claim 1, it is characterized in that: the size of described Chip-R R resistance is determined by required minor level horizontal size, according to minor level value, adopt Taylor's distribution or Chebyshev to distribute and calculate n 1to n ithe amplitude ratio of row annulus structure outgoing Electromagnetic wave penetrating percentage, the counter value of releasing Chip-R R in the structure of respective column annulus then, the span of Chip-R value R is 1~1000 Ω.
CN201210105092.0A 2012-04-12 2012-04-12 Antenna housing for reducing minor lobe level by using artificial structure material Active CN102629707B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210105092.0A CN102629707B (en) 2012-04-12 2012-04-12 Antenna housing for reducing minor lobe level by using artificial structure material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210105092.0A CN102629707B (en) 2012-04-12 2012-04-12 Antenna housing for reducing minor lobe level by using artificial structure material

Publications (2)

Publication Number Publication Date
CN102629707A CN102629707A (en) 2012-08-08
CN102629707B true CN102629707B (en) 2014-03-26

Family

ID=46587912

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210105092.0A Active CN102629707B (en) 2012-04-12 2012-04-12 Antenna housing for reducing minor lobe level by using artificial structure material

Country Status (1)

Country Link
CN (1) CN102629707B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102882001B (en) * 2012-09-25 2015-02-18 中国科学院光电技术研究所 Antenna housing for implementing antenna beamwidth switching by using artificial structure material
CN105514619A (en) * 2016-01-13 2016-04-20 武汉科技大学 Ultra wideband material microwave absorber loaded with chip resistor
CN108183327B (en) * 2018-03-02 2021-11-19 常熟市浙大紫金光电技术研究中心 Antenna housing for expanding deflection angle of phase array antenna
CN114122743B (en) * 2021-11-25 2023-01-06 华中科技大学 Wave absorbing/transmitting device with miniaturized units
WO2023225879A1 (en) * 2022-05-24 2023-11-30 华为技术有限公司 Metasurface coating, radome assembly and array antenna

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101335379A (en) * 2007-06-25 2008-12-31 财团法人工业技术研究院 Antenna apparatus and antenna radome and design method thereof
CN101425621A (en) * 2007-10-31 2009-05-06 财团法人工业技术研究院 Antenna structure and antenna radome thereof
CN101501927A (en) * 2006-04-27 2009-08-05 雷斯潘公司 Antennas, devices and systems based on metamaterial structures

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7256753B2 (en) * 2003-01-14 2007-08-14 The Penn State Research Foundation Synthesis of metamaterial ferrites for RF applications using electromagnetic bandgap structures

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101501927A (en) * 2006-04-27 2009-08-05 雷斯潘公司 Antennas, devices and systems based on metamaterial structures
CN101335379A (en) * 2007-06-25 2008-12-31 财团法人工业技术研究院 Antenna apparatus and antenna radome and design method thereof
CN101425621A (en) * 2007-10-31 2009-05-06 财团法人工业技术研究院 Antenna structure and antenna radome thereof

Also Published As

Publication number Publication date
CN102629707A (en) 2012-08-08

Similar Documents

Publication Publication Date Title
CN102629707B (en) Antenna housing for reducing minor lobe level by using artificial structure material
Saifullah et al. 4-bit optimized coding metasurface for wideband RCS reduction
CN110165414B (en) Reflection type broadband 4-bit coding super surface for broadband RCS reduction
CN208093729U (en) Broadband RCS based on gap load reduces super surface
CN105789877A (en) Four-beam microstrip transmission array antenna based on super-surface, and design method for four-beam microstrip transmission array antenna
CN103996901B (en) A kind of high-gain circular polarized antenna for being easy to Planar integration
CN102623805A (en) Low-cost phased array antenna based on cross coupling control
CN111430903B (en) Radiation scattering integrated low-RCS antenna housing and design method thereof
CN103050776A (en) High-gain high-efficiency flat plate antenna loaded with left-handed material
CN104036078A (en) Comprehensive design method of array antenna radiation and scattering performance based on installation height
CN107134659A (en) High-gain orbital angular momentum array antenna based on multilayer acoustical panel
CN108134193A (en) A kind of compact-sized active-passive composite polarization sensitive array antenna assembly
CN112151969B (en) Strong coupling broadband phased array in-band RCS control method based on generalized scattering matrix
CN102480019B (en) Metamaterial antenna
CN110061361A (en) A kind of phased array antenna and its design and extended method
CN106505309A (en) Present array antenna in a kind of gap loaded microstrip side
CN101420067A (en) Multi-beam antenna using incongruous medium material antenna cover
CN204243175U (en) Sidelobe metamaterial flat antenna
CN102856661B (en) Bandpass wave-transmitting material and antenna housing and antenna system
CN203085756U (en) High-gain and high-efficiency panel antenna with loaded left-handed material
CN102891373A (en) Base station antenna made of metamaterial
CN113346227B (en) Sum-difference system low-sidelobe flat plate slot antenna
CN103956585A (en) Phased-array antenna unit with flat-top directional diagram characteristics
CN110098481B (en) 24GHz high-gain metamaterial microstrip antenna based on topology optimization
CN113553711A (en) Design method of conformal array antenna with any curved surface

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant