CN207753168U - A kind of circularly-polarizedhorn horn antenna of load Meta Materials - Google Patents
A kind of circularly-polarizedhorn horn antenna of load Meta Materials Download PDFInfo
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- CN207753168U CN207753168U CN201820187952.2U CN201820187952U CN207753168U CN 207753168 U CN207753168 U CN 207753168U CN 201820187952 U CN201820187952 U CN 201820187952U CN 207753168 U CN207753168 U CN 207753168U
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- loudspeaker
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Abstract
The utility model discloses a kind of circularly-polarizedhorn horn antennas of load Meta Materials, including coaxial feed connector, rectangular waveguide, loudspeaker and Meta Materials circular polarisation converter, the coaxial feed connector is mounted on the lateral wall of the rectangular waveguide, the opening of the rectangular waveguide and the loudspeaker small end is connected to each other, which is connected to the aperture position of the loudspeaker big end；The Meta Materials circular polarisation converter includes the two layer medium substrate to stack together, multiple metal boxes of quadrate array arrangement are etched on the inner face of the outer end face of second medium substrate and a medium substrate, metal box on the inner face of the outer end face of second medium substrate and a medium substrate is overlapped, and dipole cruciferous is also etched in the metal box of second medium substrate outer end face.The circularly-polarizedhorn horn antennas of the load Meta Materials is simple in structure, facilitates processing.
Description
Technical field
The utility model is related to a kind of circularly-polarizedhorn horn antennas of load Meta Materials, belong to microwave antenna art field.
Background technology
With the development of satellite communication and space probation, need with Radar Technology to target in various polarization and weather
Track and localization is carried out under environment, linear polarized antenna is far from meet demand, and circular polarized antenna is in signal reception and electricity
In magnetic reactance interference advantage is suffered from compared to the linear polarized antenna with size.The device on the violent aircraft for swinging or rolling
Circular polarized antenna can receive signal under any state；Circular polarized antenna is used in astronomical, space equipment, removing can
To reduce outside spillover, it is also possible to eliminate the influences such as polarization distortion caused by the Faraday rotation effect of ionosphere；In TV
Circular polarized antenna is used in broadcast, the interference that can be overcome ghost image, inhibit misty rain keeps stabilization of picture etc..As it can be seen that circular polarisation
Application prospect of the antenna in fields such as satellite communication, survey of deep space, Radar Technology, radio astronomy and television broadcastings is very wide
Wealthy.
The circular polarisation formation of electromagnetic horn depends primarily on circular polarizer, and circular polarizer is to form that amplitude is equal, phase difference
The microwave device of 90 ° of orthogonal space electric field intensity.Circular polarizer is the important composition of circular polarized antenna waveguide feed system
Part, its performance quality directly influence the circular polarization characteristics and its bandwidth characteristic of antenna.
Komlos, Foldes and Jasinski are delivered within 1961《Feed system for clockwise and
counterclockwise circular polarization》, it is proposed that 90 ° of phase shifters and in the waveguide addition ridge construction
The concept of circularly-polarizedhorn horn antenna.But due to needing multilayered structure to form, this, which will increase, loads difficulty and antenna weights, and
Cost is higher.
What sign space is delivered within 1993《Microwave circularly-polarizedhorn horn antenna》, propose a kind of X-band Circular polarization horn, moved with medium
Facies principle is designed to pyramid loudspeaker type, by the structures such as standard waveguide, twist-reflector 45 ° of converters, square wave guide, dieelctric sheet, horn mouths
At, although which realizes circular polarisation, but design structure and assembling are complicated, and the machining accuracy required in addition that is also relatively high,
Prodigious relationship is suffered from shape, area, position and the technique of phase shift media piece.
King in 2010 helps chastity et al. and delivers《The design and experiment of X-band circular polarized antenna》, describe a kind of circular polarisation
Broadband conical-horn antenna, this antenna are by being symmetrically inserted into two rows of metallic screws, metallic screw in the tube wall of circular waveguide
It is equal intervals to arrange, to realize circular polarisation.Screw circular polarizer has insertion loss small, and power capacity is larger,
The features such as good with performance, but frequency band is relatively narrow, and polarizer internal motivation easily causes higher mode, and structure is very complicated.
In conclusion existing circularly-polarizedhorn horn antenna is complicated, difficulty of processing is big, is not easy to assemble, limit
It is used.
Utility model content
The purpose of the utility model is to overcome in place of the deficiencies in the prior art, provide a kind of entelechy of load Meta Materials
Change electromagnetic horn, it is simple in structure, facilitate processing.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of circularly-polarizedhorn horn antenna of load Meta Materials, including coaxial feed connector, rectangular waveguide, loudspeaker and Meta Materials
Circular polarisation converter, the coaxial feed connector are mounted on the lateral wall of the rectangular waveguide, the rectangular waveguide and the loudspeaker small end
Opening be connected to each other, which is connected to the aperture position of the loudspeaker big end；The Meta Materials circular polarisation
Converter includes the two layer medium substrate to stack together, on the inner face of the outer end face of second medium substrate and a medium substrate
Gold on the inner face of multiple metal boxes of etching quadrate array arrangement, the outer end face of second medium substrate and a medium substrate
Belong to box overlapping, dipole cruciferous, the cross of the dipole are also etched in the metal box of second medium substrate outer end face
The both ends at end and perpendicular end are respectively directed to four angles of the metal box, the horizontal end of the dipole in the metal box
Two opposite square positions are etched there are two short metal edges, and two short metal edges are symmetrically connected to surround two sides at the right angle
Hold row level with both hands on side and with the horizontal of the dipole.
Preferably, the loudspeaker are standard gain pyramid loudspeaker.
Preferably, the end face of the opening of the plane at the place of the Meta Materials circular polarisation converter and the loudspeaker big end is flat
Row.
Preferably, the Meta Materials circular polarisation converter is adapted with the opening shape of the loudspeaker big end, and is bonded peace
Mounted in the trumpet.
Preferably, the loudspeaker big end plane of the opening is rectangle.
Preferably, it is fixed using glue between the Meta Materials circular polarisation converter and the loudspeaker or screw is fixed.
Compared with the background art, it has the following advantages that the technical program：
The Meta Materials circular polarisation converter is made of two layer medium substrate, can be made of printed circuit board, technique is wanted
Ask low, handling ease is light, is highly convenient for assembling, cost is relatively low.
The circularly-polarizedhorn horn antenna of the load Meta Materials, including coaxial feed connector, rectangular waveguide, loudspeaker and Meta Materials
Circular polarisation converter, the Meta Materials circular polarisation converter include the two layer medium substrate to stack together, second medium substrate
Etch multiple metal boxes of quadrate array arrangement on the inner face of outer end face and a medium substrate, second medium substrate it is outer
Metal box on the inner face of end face and a medium substrate is overlapped, and is also etched in the metal box of second medium substrate outer end face
The both ends at criss-cross dipole, the horizontal end of the dipole and perpendicular end are respectively directed to four angles of the metal box, institute
It states two opposite square positions of the horizontal end of the dipole in metal box to etch there are two short metal edges, two short metals
While being symmetrically connected on the dual side-edge for surrounding the right angle and holding row level with both hands with the horizontal of the dipole.By rectangular waveguide and opening
The class spherical wave that loudspeaker wall is formed, when by the Meta Materials circular polarisation transducer face, incidence wave is broken down into two amplitudes
Equal, phase differs 90 ° of line polarization wave to make the electromagnetic wave being emitted from circular polarisation converter be converted into circularly polarised wave, resists dry
It is strong to disturb ability.Simultaneously again have the advantages that electromagnetic horn high gain, it is simple in structure, facilitate processing.
The loudspeaker are standard gain pyramid loudspeaker, of less demanding to accessory, assemble the Meta Materials circular polarisation converter letter
Folk prescription is just.
The plane at the place of the Meta Materials circular polarisation converter is parallel with the end face of opening of loudspeaker big end, described
Meta Materials circular polarisation converter is adapted with the opening shape of the loudspeaker big end, and is jointly mounted to the trumpet.It can
According to the loudspeaker of arbitrary frequency range and arbitrary shape, Meta Materials circular polarisation conversion compatible with the opening shape of loudspeaker big end is loaded
Device, versatility are good.
Description of the drawings
Fig. 1 is one of the stereoscopic schematic diagram of circularly-polarizedhorn horn antenna of the utility model load Meta Materials.
Fig. 2 is the two of the stereoscopic schematic diagram of the circularly-polarizedhorn horn antenna of the utility model load Meta Materials.
Fig. 3 is the Meta Materials circular polarisation converter inside structure of the circularly-polarizedhorn horn antenna of the utility model load Meta Materials
Schematic diagram.
Fig. 4 (a) be the utility model load Meta Materials circularly-polarizedhorn horn antenna in incidence wave transmission circular polarisation converter
Reflection and transmission coefficients curve.
Fig. 4 (b) be the utility model load Meta Materials circularly-polarizedhorn horn antenna in incidence wave transmission circular polarisation converter
Phase curve.
Fig. 5 (a) is that the circularly-polarizedhorn horn antenna of the utility model load Meta Materials normalizes direction in the faces XOZ at 29GHz
Figure.
Fig. 5 (b) is that the circularly-polarizedhorn horn antenna of the utility model load Meta Materials normalizes direction in the faces YOZ at 29GHz
Figure.
Fig. 6 is S11 parameter of the circularly-polarizedhorn horn antenna of the utility model load Meta Materials at 28GHz-31GHz with frequency
Rate change curve.
Fig. 7 is standing-wave ratio of the circularly-polarizedhorn horn antenna of the utility model load Meta Materials at 28GHz-31GHz with frequency
Rate change curve.
Fig. 8 is axis ratio of the circularly-polarizedhorn horn antenna of the utility model load Meta Materials at 28GHz-31GHz with frequency
Change curve.
Fig. 9 is gain of the circularly-polarizedhorn horn antenna of the utility model load Meta Materials at 28GHz-31GHz with frequency
Change curve.
Reference numeral：
1 coaxial feed connector, 2 rectangular waveguides, 3 loudspeaker, Meta Materials circular polarisation converter 4, medium substrate 5, metal box
6, dipole 7, short metal edges 8.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples.
In the description of the present invention, it should be understood that term "upper", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as " cross ", " perpendicular ", "top", "bottom", "inner", "outside" is based on shown in the stereogram in attached drawing
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model
Limitation.
As shown in Figure 1 to Figure 3, the utility model provides a kind of circularly-polarizedhorn horn antenna of load Meta Materials, including coaxial
Feed connection 1, rectangular waveguide 2, loudspeaker 3 and Meta Materials circular polarisation converter 4.The coaxial feed connector 1 is mounted on the rectangular wave
It leads on 2 lateral wall, the opening of the rectangular waveguide 2 and 3 small end of loudspeaker is connected to each other, the Meta Materials circular polarisation converter 4 connection
In the aperture position of 3 big end of loudspeaker.
The Meta Materials circular polarisation converter 4 includes the two layer medium substrate 5 to stack together, can be by printed circuit board
It is made, technological requirement is low, handling ease, light, is highly convenient for assembling, cost is relatively low.
The more of quadrate array arrangement are etched on the inner face of the outer end face of the second medium substrate 5 and a medium substrate 5
Metal box 6 on the inner face of a metal box 6, the outer end face of second medium substrate 5 and a medium substrate 5 is overlapped, second medium
Dipole 7 cruciferous, the both ends at the horizontal end of the dipole 7 and perpendicular end are also etched in the metal box 6 of 5 outer end face of substrate
Portion is respectively directed to four angles of the metal box 6, and the horizontal end of the dipole in the metal box 6 opposite two is straight
Angle Position is etched there are two short metal edges 8, two short metal edges 8 be symmetrically connected on the dual side-edge for surrounding the right angle and with institute
It states the horizontal of dipole 7 and holds row level with both hands.The class spherical wave formed by the wall of rectangular waveguide 2 and the loudspeaker 3 opened, by the Meta Materials
When circular polarisation 4 surface of converter, incidence wave is broken down into that two amplitudes are equal, phase differ 90 ° of line polarization wave to make from
The electromagnetic wave of circular polarisation converter outgoing is converted into circularly polarised wave, strong antijamming capability.Simultaneously again have electromagnetic horn high gain,
It is simple in structure, facilitate the advantages that processing.
The loudspeaker 3 are standard gain pyramid loudspeaker, of less demanding to accessory, assemble the Meta Materials circular polarisation converter 4
It is simple and convenient.The mouth face size of the standard gain pyramid loudspeaker 3, axial length are designed according to specific gain requirements.The loudspeaker 3
More than pyramid loudspeaker is confined to, the loudspeaker of arbitrary shape are also applied for, as long as inside it or bell mouth surface according to design
The line polarization wave of transmitting can be converted to circularly polarised wave by upper load circular polarization converter.
The size of the rectangular waveguide 2 is determined by the working frequency range of the circularly-polarizedhorn horn antenna of load Meta Materials, described super
The thickness of material circular polarisation converter 4 is about 1/5th of working band center frequency wavelength.
The plane at the place of the Meta Materials circular polarisation converter 4 is parallel with the end face of opening of 3 big end of the loudspeaker.
The size of the Meta Materials circular polarisation converter 4 and placement position can be designed as needed.For example, the super material
Expect that the distance of 3 big end plane of the opening of loudspeaker described in the outer end plan range of circular polarisation converter 4 is 0-4mm, the Meta Materials circle
Polarization converter 4 is adapted with the opening shape of 3 big end of the loudspeaker, and is jointly mounted to inside the loudspeaker 3.
3 big end plane of the opening of the loudspeaker is rectangle.
It is fixed using glue between the Meta Materials circular polarisation converter 4 and the loudspeaker 3 or screw is fixed, to ensure jail
Solidity and reliability.
The dielectric constant of the planar medium substrate 5 is 2.2-6.
As shown in Fig. 2, the Meta Materials circular polarisation converter 4 is arranged by the converting unit period and is formed, the conversion unit by
Two-layered medium substrate 5, three-layer metal box 6, multiple short metal edges 6 and double layer of metal dipole 7 form.The circular polarisation converter
4 size and location is unfixed, can pass through position and loudspeaker according to indexs such as circular polarisation bandwidth come design position
3 size determines size.The structure of the converting unit can be replaced, as long as it can complete line-circular polarisation conversion.It is super
As a kind of emerging artificial composite material with extraordinary electromagnetic property, the rules unit usually arranged by the period is constituted material,
Simple, the powerful electromagnetic product of easily studied personnel's design structure.
Fig. 4 (a) is reflection and transmission coefficients curve of the utility model circular polarisation converter 4 in Electromgnetically-transparent.It is horizontal
Axis is frequency range, and the longitudinal axis is to reflect and transmit range coefficient, it can be seen that in 28GHz-31GHz, the transmission system of two patterns
Number is close to 0, and transmitance is very high, and reflectance factor is in -10dB hereinafter, reflectivity is very low.Fig. 4 (b) is incidence wave in the utility model
The phase curve for transmiting 4 latter two modes of circular polarisation converter, by, it can be found that in 28GHz-31GHz, incidence wave is divided in figure
Solution differs about 90 ° of two line polarization waves for two phases.
The length of side of Meta Materials circular polarisation converter 4 and the quantity of resonant element are determined by loading the position inside loudspeaker 3
Fixed, since it is considered that the effect of fastness, reliability and polarization conversion, four sides need and are close to inside loudspeaker 4.In this reality
It is assemblied at the opening 0mm apart from loudspeaker 3 with Meta Materials circular polarisation converter 4 in novel middle actual test, length of long sides 18mm,
Length of short sides 14.4mm.While the size that can also adjust Meta Materials circular polarisation converter 4 places it in the opening apart from loudspeaker 3
The many places such as 2mm to 4mm.Fig. 5 (a) is the faces the circularly-polarizedhorn horn antenna XOZ normalization that the utility model loads Meta Materials under 29GHz
Directional diagram；Fig. 5 (b) is the directional diagram in the faces circularly-polarizedhorn horn antenna YOZ that the utility model loads Meta Materials under 29GHz.
Fig. 6 be the utility model load Meta Materials circularly-polarizedhorn horn antenna within the scope of 28GHz to 31GHz self-reflection system
Number S11 is with frequency variation curve, and as seen from the figure, S11 is within the scope of 28GHz-30.6GHz substantially below -15dB.Fig. 7 is this
Utility model loads the circularly-polarizedhorn horn antennas of Meta Materials in 28GHz to 31GHz ranges standing internal wave ratio with frequency variation curve, by
Figure is it is found that in 28GHz-30.7GHz ranges standing internal wave than 2 hereinafter, this absolutely proves that the Meta Materials circular polarisation converter 4 is right
The reflection of incidence wave is seldom.
Fig. 8 be the utility model load Meta Materials circularly-polarizedhorn horn antenna 28GHz to 31GHz ranges inner shaft ratio with frequency
Rate change curve, as seen from the figure, the antenna is in 28.4GHz-30.7GHz range inner shaft ratios in 3dB hereinafter, realizing circular polarisation
Conversion.
Fig. 9 be the utility model load Meta Materials circularly-polarizedhorn horn antenna within the scope of 28GHz to 31GHz gain with frequency
Rate change curve has added the gain of the electromagnetic horn of Meta Materials circular polarisation converter 4 to reduce by a small margin, reduction amount as seen from the figure
Within the scope of 1.1dB, for base antenna, for the standard-gain horn antenna of 15dB, which does not have
Have and the gain of primary antenna is influenced too much.
The utility model loads the circularly-polarizedhorn horn antenna of the load Meta Materials of Meta Materials circular polarisation converter 4 by passing
Interior 4 realization of load Meta Materials circular polarisation converter of pyramid loudspeaker of uniting.Inventor is by designing Meta Materials circular polarisation converter 4
Size and the shape and size of its converting unit structure are constituted to carry out polarization conversion, to obtain the incidence wave inside pyramid loudspeaker
Conversion from line polarization wave to circularly polarised wave.
The above, only the utility model preferred embodiment, therefore the utility model implementation cannot be limited according to this
It is new all should still to belong to this practicality that is, according to equivalent changes and modifications made by the utility model patent range and description for range
In the range of type covers.
Claims (6)
1. a kind of circularly-polarizedhorn horn antenna of load Meta Materials, including coaxial feed connector, rectangular waveguide, loudspeaker and Meta Materials circle
Polarization converter, the coaxial feed connector are mounted on the lateral wall of the rectangular waveguide, the rectangular waveguide and the loudspeaker small end
Opening is connected to each other, which is connected to the aperture position of the loudspeaker big end, it is characterised in that：The super material
Material circular polarisation converter includes the two layer medium substrate to stack together, the outer end face of second medium substrate and a medium substrate it is interior
The inner end of multiple metal boxes of quadrate array arrangement, the outer end face of second medium substrate and a medium substrate is etched on end face
Metal box on face is overlapped, and dipole cruciferous, the idol are also etched in the metal box of second medium substrate outer end face
Extremely the both ends at sub horizontal end and perpendicular end are respectively directed to four angles of the metal box, the idol in the metal box
Two opposite square positions of extremely sub horizontal end are etched there are two short metal edges, and two short metal edges are symmetrically connected to surround described straight
Hold row level with both hands on the dual side-edge at angle and with the horizontal of the dipole.
2. the circularly-polarizedhorn horn antenna of load Meta Materials according to claim 1, it is characterised in that：The loudspeaker are standard
Gain pyramid loudspeaker.
3. the circularly-polarizedhorn horn antenna of load Meta Materials according to claim 1, it is characterised in that：The Meta Materials entelechy
The plane for changing the place of converter is parallel with the end face of opening of loudspeaker big end.
4. the circularly-polarizedhorn horn antenna of load Meta Materials according to claim 1, it is characterised in that：The Meta Materials entelechy
Change converter to be adapted with the opening shape of the loudspeaker big end, and is jointly mounted to the trumpet.
5. the circularly-polarizedhorn horn antenna of load Meta Materials according to claim 4, it is characterised in that：The loudspeaker big end is opened
Mouth plane is rectangle.
6. the circularly-polarizedhorn horn antenna of load Meta Materials according to claim 4, it is characterised in that：The Meta Materials entelechy
It is fixed using glue between change converter and the loudspeaker or screw is fixed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820187952.2U CN207753168U (en) | 2018-02-02 | 2018-02-02 | A kind of circularly-polarizedhorn horn antenna of load Meta Materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820187952.2U CN207753168U (en) | 2018-02-02 | 2018-02-02 | A kind of circularly-polarizedhorn horn antenna of load Meta Materials |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034413A (en) * | 2019-05-24 | 2019-07-19 | 电子科技大学 | A kind of unobstructed wave beam deflection antenna on the super surface of load |
| CN112259969A (en) * | 2020-10-26 | 2021-01-22 | 北京邮电大学 | Millimeter wave broadband circularly polarized feed source antenna based on super surface |
| CN113889771A (en) * | 2021-09-10 | 2022-01-04 | 中国人民解放军空军工程大学 | Double-circular-polarization multi-beam digital coding transmission superstructure surface |
-
2018
- 2018-02-02 CN CN201820187952.2U patent/CN207753168U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034413A (en) * | 2019-05-24 | 2019-07-19 | 电子科技大学 | A kind of unobstructed wave beam deflection antenna on the super surface of load |
| CN110034413B (en) * | 2019-05-24 | 2020-10-09 | 电子科技大学 | Super-surface-loaded non-shielding beam deflection antenna |
| CN112259969A (en) * | 2020-10-26 | 2021-01-22 | 北京邮电大学 | Millimeter wave broadband circularly polarized feed source antenna based on super surface |
| CN112259969B (en) * | 2020-10-26 | 2021-08-20 | 北京邮电大学 | Millimeter wave broadband circularly polarized feed source antenna based on super surface |
| CN113889771A (en) * | 2021-09-10 | 2022-01-04 | 中国人民解放军空军工程大学 | Double-circular-polarization multi-beam digital coding transmission superstructure surface |
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