CN105490015A - Equal-hexahedron conformal broad-band phase-stabilizing dual circularly-polarized antenna - Google Patents
Equal-hexahedron conformal broad-band phase-stabilizing dual circularly-polarized antenna Download PDFInfo
- Publication number
- CN105490015A CN105490015A CN201610015839.1A CN201610015839A CN105490015A CN 105490015 A CN105490015 A CN 105490015A CN 201610015839 A CN201610015839 A CN 201610015839A CN 105490015 A CN105490015 A CN 105490015A
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- hexahedron
- conformal
- antenna
- polarized antenna
- monopole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- 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
Abstract
The invention provides an equal-hexahedron conformal broad-band phase-stabilizing dual circularly-polarized antenna, and aims to provide the equal-hexahedron conformal broad-band phase-stabilizing dual circularly-polarized antenna that is simple and reliable without adopting an over complex structure. The equal-hexahedron conformal broad-band phase-stabilizing dual circularly-polarized antenna is realized by the following technical scheme: an equal-hexahedron hexagonal incenter is surrounded by zigzag-form monopoles together; the zigzag-form monopoles are uniformly arranged at the equal angle of circumference of 60 degrees by adopting the same metal grounding plate; and the equal-hexahedron conformal broad-band phase-stabilizing dual circularly-polarized antenna is formed through input ports for feeding six conformal monopole antennas respectively. According to the equal-hexahedron conformal broad-band phase-stabilizing dual circularly-polarized antenna, the broad band, phase stabilization and left and right rotating circular polarization of the antenna are realized without increasing an extra complex structure; and therefore, the problems of large size, complex manufacturing process and the problem that only one polarization mode can be realized in the prior art are solved.
Description
Technical field
The present invention relates to a kind of steady phase dual circularly polarized antenna such as the conformal broadband of hexahedron such as grade be mainly used on differential GPS.
Technical background
The profile of modern communications equipment is greatly light and handy along with the development of the technology such as integrated circuit, and antenna, especially some large-scale antenna systems, often all heavier, have impact on the flexibility of antenna applications, limit its scope of application, hinder wireless device especially and enter a miniaturization and integrated development.The polarization of polarization band Wide antenna refers to the orientation of the electric field intensity of antenna on greatest irradiation direction.When this electric field intensity orientation is constant, this antenna is linear polarized antenna: when the orientation time to time change of this electric field intensity, and its vector end-points, perpendicular to when formation one is oval in the plane of the direction of propagation, is just called elliptical polarization; If form a circle, be then called circular polarization.Radiation or the antenna accepting circularly polarised wave are called circular polarized antenna.Circularly polarised wave have when inciding symmetric targets (plane, sphere etc.) rotation direction reverse characteristic, this characteristic be used in mobile communication and GPS field anti-misty rain interference and multipath reflection; When circularly polarised wave incides symmetric targets (as plane, sphere etc.), reflected wave become derotation to, namely left-handed wave becomes dextrorotation, and dextrorotation becomes left-handed.Can be known by this character, adopt the radar of circularly polarised wave work to have the ability suppressing misty rain interference.Because water spot is similar to spherical in shape, be derotation to circular polarization wave reflection; And be non-simple symmetric body radar target (as aircraft, guided missile etc.), it is elliptically polarised wave for the reflected wave of circularly polarised wave, therefore has the circular polarization composition of same rotation direction.Just because of above-mentioned characteristic, circular polarized antenna obtains a wide range of applications now.
Circular polarized antenna is the direction of the elect magnetic field electric field of antenna institute radiation and size is not fixing in space.Circular polarized antenna can receive any polarized wave of any poliarizing antenna radiation, to divide and the circular polarization electromagnetic wave of its radiation can be received by the antenna polarized arbitrarily in the polarization of radar, communication; The left-right rotary of circular polarized antenna can be used to orthogonal isolation in the application such as the incident collection work of circularly polarised wave; Can change to rotation direction during symmetric targets, in the system such as mobile communication, GPS, therefore apply circular polarized antenna can suppress multipath reflection and misty rain interference.But in a plane, forming an ellipse along with the change of time, when special, ellipse can become circle (i.e. pure circularly polarised wave).For circular polarized antenna, its polarization characteristic limits the principal element of bandwidth of operation often.Obtain circularly polarised wave, two vectors must amplitude equal, orthogonal space, phase difference are therebetween 90 °, and Here it is obtains three conditions of circular polarization.The antenna form of broadband circle polarized performance has a lot, as stacked micro-band circular polarized antenna, this kind of circular polarized antenna is better performances in impedance bandwidth, axial ratio, gain and beamwidth, even if but such antenna is by adopting double-fed and the four feedback networks of more complicated, its Phase center stability is still very large; Archimedian spiral antenna, namely plane Archimedean spiral antenna and hemisphere Archimedian spiral antenna is referred to, Archimedian spiral antenna is as a kind of form of flat helical antenna, structurally generally there are single armed, both arms and four arms several, for both arms or four-arm spiral antenna, because antenna is structurally symmetrical, advantage is bandwidth, phase center stable, weak point is that size is large, complex manufacturing technology, and a polarization mode can only be realized.The height of helical antenna constrains his application at spaceborne measurement and control area to a certain extent.
Summary of the invention
It is simple and reliable that task of the present invention is to provide a kind of array, working band is wide, and section is extremely low, there is the steady phase behaviour in broadband, the conformal antenna that can be used as variety carrier uses, not adopting too under labyrinth form prerequisite, the steady phase antenna in broadband of left-right rotary double-circle polarization can be realized simultaneously, make antenna pitching face in frequency band range require to cover meet phase center error requirements within the scope of spatial domain while realize left-right rotary double-circle polarization.
The technical scheme solving described problem is, one waits the steady phase dual circularly polarized antenna in the conformal broadband of hexahedron, comprise, 6 conformal monopoles in broadband of position, point of contact in hexahedron hexagon inscribed circle such as to be placed in respectively, it is characterized in that: described folding shape monopole is common around waiting hexahedron hexagon incenter respectively, by 60 ° of equal circumference angles, metal ground is evenly distributed altogether, and by carrying out the input port of feed respectively to six conformal monopole antennas, form a pair and wait the steady phase dual circularly polarized antenna in the conformal broadband of hexahedron.
The present invention has following beneficial effect.
Array is simple and reliable, and working band is wide, and section is extremely low.The present invention adopts 6 to roll over, and shape wideband monopole is sub and hexahedron is conformal, the position, point of contact in hexahedron hexagon inscribed circle such as to be placed in respectively, jointly around waiting hexahedron hexagon incenter, by 60 ° of equal circumference angles, metal ground is evenly distributed altogether, this structure simple possible, is easy to processing and realizes.Under the prerequisite not increasing additional complexity structure, achieve the function of the steady phase in broadband and left-right-hand circular polarization.Solve prior art size large, complex manufacturing technology, and a polarization mode problem can only be realized.
Have the steady phase behaviour in broadband, the conformal antenna that can be used as variety carrier uses.The present invention adopts 6 folding shape wideband monopole conformal with hexahedron such as grade, the position, point of contact in hexahedron hexagon inscribed circle such as monopole to be placed in respectively, jointly around waiting hexahedron hexagon incenter, metal ground is evenly distributed altogether at 60 ° of equal circumference angles, makes antenna element possess wide working band, wide beamwidth, double-circle polarization characteristic.Symmetrical structure characteristic when utilizing the broadband character of folding shape monopole antenna and wait the conformal array of hexahedron, produces comparatively strong lotus root effect mutually, possesses the circular incision of broadband and wideangle double-circle polarization high-isolation characteristic simultaneously.This symmetrical structure effectively eliminate antenna feed metal radiation leakage and between signal coupling, inhibit cross polarization, extend the circular polarization bandwidth of antenna.Adjustment waits hexahedron hexagon inscribed circle radius size, makes this antenna pitching face ± 70 ° in 110MHz bandwidth range cover phase center error in spatial domain and is less than 1.5mm; The feed port be distributed on conformal monopole antenna input port by 0 ° ,-60 ° ,-120 °, 180 °, 120 °, 60 ° and 180 °, 120 °, 60 °, 0 ° ,-60 ° ,-120 ° respectively by six carries out feed, to realize left-right-hand circular polarization to 6 folding shape wideband monopole.Wait design by said structure layout with electric, there is while making antenna realize left-right rotary double-circle polarization at the same time the steady phase behaviour in broadband.Hexahedron hexagon inscribed circle radius size is waited to avoid compound direction figure to form depression on summit by adjustment.What have is lightweight, and section is low, easily conformal with carrier, easily the characteristic not available for other antenna form such as formation circular polarization.
The present invention adopts 6 feed port respectively to 6 broadband folding shape monopole antenna inputs, feed is carried out to antenna array, obtain good effect, on the basis that ensure that certain circular polarization bandwidth, add the gain performance of antenna, not only there is broadband character, and there is double-circle polarization performance, symmetrical structure characteristic when utilizing the broadband character of folding shape monopole antenna and wait the conformal array of hexahedron, produce comparatively strong lotus root effect mutually, meet: in 110MHz bandwidth range, how to realize phase center error in ° covering spatial domain, pitching face ± 70 be less than 1.5mm; Left-right rotary double-circle polarization can be realized in 110MHz bandwidth range simultaneously.
The present invention can be applied to differential GPS and other field of antenna having similar performance to require.
Accompanying drawing explanation
Fig. 1 is the perspective view of the steady phase dual circularly polarized antenna in the conformal broadband of the hexahedrons such as the present invention;
Fig. 2 is the sub-schematic layout pattern of antenna folding shape wideband monopole of Fig. 1;
Fig. 3 is the feed port schematic diagram that antenna folding shape wideband monopole of Fig. 1 is corresponding.
In figure: 1. the first folding shape wideband monopole, 2. the second folding shape wideband monopole, 3. the 3rd folding shape wideband monopole, 4. four fold shape wideband monopole, 5. the 5th folding shape wideband monopole, 6. the 6th folding shape wideband monopole, 7. the first feed port, 8. the second feed port, the 9. feed port of the 3rd monopole 3,10. the 4th feed port, 11. the 5th feed port, 12. the 6th feed port, 13. medium carriers such as hexahedron such as grade, 14. metal ground plates.
Embodiment
Consult Fig. 1, Fig. 2.In embodiment described below, a kind of wait the steady phase dual circularly polarized antenna in the conformal broadband of hexahedron, comprise, 6 conformal monopoles in broadband of position, point of contact in hexahedron hexagon inscribed circle such as to be placed in respectively.Around waiting hexahedron hexagon incenter, by 60 ° of equal circumference angles, metal ground is evenly distributed altogether jointly for described folding shape monopole, and by carrying out 0 ° ,-60 ° ,-120 °, 180 °, 120 °, 60 ° and 180 °, 120 °, 60 °, 0 ° ,-60 ° ,-120 ° feeds to six conformal monopole antenna input ports respectively, forming a pair and waiting the steady phase dual circularly polarized antenna in the conformal broadband of hexahedron.Deng the steady phase dual circularly polarized antenna in the conformal broadband of hexahedron.The first folding shape wideband monopole 1, second folding shape wideband monopole the 2, the 3rd folding shape wideband monopole 3 in antenna, four fold shape wideband monopole the 4, the 5th folding shape wideband monopole the 5, the 6th folding shape wideband monopole 6, according to 60 ° of equal circumference angles altogether metal floor 14 to be evenly arranged in etc. in hexahedron 13 hexagon inscribe circumference on point of contact.Hexahedron medium carrier 13 hexagon inscribed circle radius can be waited by adjustment, avoid the formation that compound direction figure caves on summit, thus obtain the characteristic of the steady phase of pitching face width band.Overall dimension Deng the steady phase dual circularly polarized antenna in the conformal broadband of hexahedron can be φ 50mm × 10mm, is installed on differential GPS devices platform, realizes differential GPS function.
As Fig. 3, by carrying out 0 ° ,-60 ° ,-120 °, 180 °, 120 °, 60 ° and 180 °, 120 °, 60 °, 0 ° ,-60 ° ,-120 ° feeds to the first feed port 7, second feed port 8 between 6 broadband folding shape monopole antenna inputs, output port, the 3rd feed port 9, the 4th feed port 10, the 5th feed port 11, the 6th feed port 12 respectively, make antenna realize left-right-hand circular polarization simultaneously.
Claims (3)
1. one kind is waited the steady phase dual circularly polarized antenna in the conformal broadband of hexahedron, comprise, 6 conformal monopoles in broadband of position, point of contact in hexahedron hexagon inscribed circle such as to be placed in respectively, it is characterized in that: described folding shape monopole is common around waiting hexahedron hexagon incenter respectively, by 60 ° of equal circumference angles, metal ground is evenly distributed altogether, and by carrying out the input port of feed respectively to six conformal monopole antennas, form a pair and wait the steady phase dual circularly polarized antenna in the conformal broadband of hexahedron.
2. wait the steady phase dual circularly polarized antenna in the conformal broadband of hexahedron as claimed in claim 1, it is characterized in that, six respectively by 0 ° ,-60 ° ,-120 °, 180 °, 120 °, 60 ° and 180 °, 120 °, 60 °, 0 ° ,-60 ° ,-120 ° feed port be distributed on conformal monopole antenna input port, feed is carried out to 6 folding shape wideband monopole, radiation or accept circularly polarised wave, realizes left-right-hand circular polarization simultaneously.
3. wait the steady phase dual circularly polarized antenna in the conformal broadband of hexahedron as claimed in claim 1, it is characterized in that, the first folding shape wideband monopole (1) in antenna, the second folding shape wideband monopole (2), the 3rd folding shape wideband monopole (3), four fold shape wideband monopole (4), the 5th folding shape wideband monopole (5), the 6th folding shape wideband monopole (6), according to 60 ° of equal circumference angles altogether metal floor (14) to be evenly arranged in etc. on the interior point of contact of hexahedron (13) hexagon inscribe circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610015839.1A CN105490015A (en) | 2016-01-11 | 2016-01-11 | Equal-hexahedron conformal broad-band phase-stabilizing dual circularly-polarized antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610015839.1A CN105490015A (en) | 2016-01-11 | 2016-01-11 | Equal-hexahedron conformal broad-band phase-stabilizing dual circularly-polarized antenna |
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| CN105490015A true CN105490015A (en) | 2016-04-13 |
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| CN201610015839.1A Pending CN105490015A (en) | 2016-01-11 | 2016-01-11 | Equal-hexahedron conformal broad-band phase-stabilizing dual circularly-polarized antenna |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4584582A (en) * | 1981-08-31 | 1986-04-22 | Motorola, Inc. | Multi-mode direction finding antenna |
| CN2836258Y (en) * | 2005-08-05 | 2006-11-08 | 西安海天天线科技股份有限公司 | Dual-frequency wide beam circular polarized antenna for improvement of low elevation angle performance |
| US20070236400A1 (en) * | 2006-04-10 | 2007-10-11 | Rentz Mark L | Multi-band inverted-L antenna |
| WO2012143180A1 (en) * | 2011-04-20 | 2012-10-26 | Robert Bosch Gmbh | Antenna device |
| CN103700942A (en) * | 2013-12-31 | 2014-04-02 | 电子科技大学 | Planar antenna capable of switching wave beam for omnidirectional scanning within horizontal range |
-
2016
- 2016-01-11 CN CN201610015839.1A patent/CN105490015A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4584582A (en) * | 1981-08-31 | 1986-04-22 | Motorola, Inc. | Multi-mode direction finding antenna |
| CN2836258Y (en) * | 2005-08-05 | 2006-11-08 | 西安海天天线科技股份有限公司 | Dual-frequency wide beam circular polarized antenna for improvement of low elevation angle performance |
| US20070236400A1 (en) * | 2006-04-10 | 2007-10-11 | Rentz Mark L | Multi-band inverted-L antenna |
| WO2012143180A1 (en) * | 2011-04-20 | 2012-10-26 | Robert Bosch Gmbh | Antenna device |
| CN103700942A (en) * | 2013-12-31 | 2014-04-02 | 电子科技大学 | Planar antenna capable of switching wave beam for omnidirectional scanning within horizontal range |
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Application publication date: 20160413 |