CN104143695B - Double-circle polarization waveguide array antenna - Google Patents
Double-circle polarization waveguide array antenna Download PDFInfo
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- CN104143695B CN104143695B CN201410354540.XA CN201410354540A CN104143695B CN 104143695 B CN104143695 B CN 104143695B CN 201410354540 A CN201410354540 A CN 201410354540A CN 104143695 B CN104143695 B CN 104143695B
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Abstract
The open a kind of double-circle polarization waveguide array antenna of the present invention, including waveguide, described waveguide includes radiating layer, circular polarisation conversion layer, horizontal polarization and the vertical polarization waveguide transport layer being cascading；Described radiating layer and circular polarisation conversion layer waveguide cross-section are square；Described horizontal polarization and vertical polarization waveguide transport layer waveguide cross-section are rectangle；Described radiating layer is used for receiving double-circle polarization electromagnetic signal for square loudspeaker；Described circular polarisation conversion layer includes dieelctric sheet, described dieelctric sheet is parallel with waveguide axis, its dual-side is connected at this layer of inwall diagonal angle of waveguide, this layer of inner chamber of waveguide is separated into two spaces, described dieelctric sheet dielectric constant is 5.5 6.5, by dieelctric sheet by vertical polarization signal that double-circle polarization Signal separator is constant amplitude and horizontal polarization signals；Horizontal polarization and vertical polarization waveguide transport layer include upper and lower two-layer orthomode coupler.Common antenna can receive process double-circle polarization electromagnetic signal simultaneously.
Description
Technical field
The present invention relates to a kind of satellite signal receiving antenna, particularly relate to a kind of double-circle polarization waveguide array antenna.
Background technology
Now, communication and television signal transmission are widely used satellite transmission.The signal of satellite transmission is double-circle polarization signal a bit, i.e. includes left-handed and dextrorotation electromagnetic signal, such as KU wave band (11.7-12.3G) signal of conventional No. nine satellites of culminant star.Ground signal receives to be needed to use circularly polarized signal waveguide array antenna.Currently used antenna is a kind of circularly polarized signal flat plate array antenna, and it is operated in single circular polarization state, i.e. can only receive left-handed or right hand signal, it is impossible to receives simultaneously, process left-handed and right hand signal.For realizing the reception of double-circle polarization signal, it is all by using two slave antennas to receive left-handed or dextrorotation electromagnetic signal respectively, being exported by respective tuner the most respectively, uses electrical switch switching polarizations state as required.It is disadvantageous in that: owing to have employed two width antennas, and structure is complicated, and volume is big, and the inefficiency of equivalent area antenna surface, cost is high.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of simple in construction, volume is little, work efficiency is high, low cost, common antenna can receive the double-circle polarization waveguide array antenna processing double-circle polarization electromagnetic signal simultaneously.
In order to solve above-mentioned technical problem, the double-circle polarization waveguide array antenna of the present invention, including waveguide, described waveguide includes radiating layer, circular polarisation conversion layer, horizontal polarization and the vertical polarization waveguide transport layer being cascading；Described radiating layer and circular polarisation conversion layer waveguide cross-section are square；Described horizontal polarization and vertical polarization waveguide transport layer waveguide cross-section are rectangle；Described radiating layer is used for receiving double-circle polarization electromagnetic signal for square loudspeaker；Described circular polarisation conversion layer includes dieelctric sheet, described dieelctric sheet is parallel with waveguide axis, its dual-side is connected at this layer of inwall diagonal angle of waveguide, this layer of inner chamber of waveguide is separated into two spaces, the dielectric constant of described dieelctric sheet is 5.5-6.5, with by dieelctric sheet by the double-circle polarization Signal separator vertical polarization signal as constant amplitude and horizontal polarization signals；Described horizontal polarization and vertical polarization waveguide transport layer include upper and lower two-layer orthomode coupler.
Described dieelctric sheet two ends are that concave shaped, two ends closest approach distance are less than its both sides length of side.
Described dieelctric sheet two ends concave shaped hatching line is shaped as the waist of isosceles triangle.
The dielectric constant of described dieelctric sheet is 5.5-6.5, and exceeding this scope will affect reception, preferably 5.8-6.2, more preferably 6.
The described dieelctric sheet both sides length of side is preferably 12-16mm, exceed this scope will affect reception or increase volume, improve cost, be further preferably 13-15mm, more preferably 14mm.
Described dieelctric sheet two ends closest approaches distance preferably 3-6mm, exceed this scope will affect reception or increase volume, raising cost, be further preferably 4-5mm, more preferably 5mm.
Described dieelctric sheet thickness is preferably 1.5-2mm, exceed this scope will affect reception or increase volume, improve cost, be further preferably 1.8-2mm, more preferably 2mm.
Being provided with slot at described circular polarisation conversion layer inwall diagonal angle, this slot is fixed in described dieelctric sheet dual-side grafting.
Described dieelctric sheet plastic medium material is made.
The length of side of described square loudspeaker unit lattice is preferably 25-30mm, then is preferably 26-28mm；Long less than 1.2 times of working electromagnet wave-waves.
Described antenna is the array of cells form of 6 × 16.
Antenna can be made up of the synthetic resin material of Coating conductive layer.
Use the structure of the present invention, due to the radiating layer that is cascading, circular polarisation conversion layer, horizontal polarization and vertical polarization waveguide transport layer, circular polarisation conversion layer is provided with dieelctric sheet and this layer of inner chamber of waveguide is separated into two spaces, radiating layer signal receiving port have employed square horn structure, double-circle polarization electromagnetic signal is received by the radiating element of the horn structure of radiating layer, make the electromagnetic signal entering antenna surface have left-right rotary signal concurrently, solve the compatibling problem of dual polarized signals；The vertically and horizontally polarity electromagnetic signal that double-circle polarization electromagnetic signal is converted into constant amplitude by the dieelctric sheet of circular polarisation conversion layer is easy to next layer of transmission and receives, especially dieelctric sheet uses swallowtail-shaped structure i.e. dieelctric sheet two ends to be that concave shaped, two ends closest approach distance are shaped as the limit of equilateral triangle less than its both sides length of side, particularly dieelctric sheet two ends concave shaped hatching line, is more beneficial for improving reception, reduces volume thus reduces height and the cost of antenna；Horizontal polarization that transport layer orthomode coupler transmit for the coupling throughhole transmitting the second layer and vertical polarization electromagnetic signal, finally meet at tuner, it is achieved thereby that common antenna receives the purpose of process double-circle polarization electromagnetic signal simultaneously.Use the mode of waveguide Delamination Transmission, orthomode coupler (OMT) layer divides upper and lower two-layer to transmit horizontal polarization and vertical polarization electromagnetic signal respectively, can greatly reduce the structural volume of antenna, also save manufacturing cost, be conducive to producing the satellite antenna of compact structure, exquisite appearance.The antenna of the present invention overcomes the defect of prior art, it is achieved that common antenna receives the purpose processing double-circle polarization electromagnetic signal, and simple in construction simultaneously, volume is little, lightweight, and work efficiency is high, double-circle polarization signal one side receiving efficiency can reach 95%, low cost.
Accompanying drawing explanation
Fig. 1 is the antenna wave guide structural representation of the present invention；
Fig. 2 is the antenna wave guide top view of the present invention；
Fig. 3 is the dieelctric sheet one dovetail shape schematic diagram of inventive antenna；
Fig. 4 is antenna 6 × 16 array of cells form top view of the present invention
Fig. 5 is the waveguide layer Orthogonal Double-layer mode coupler wherein structure partial enlarged drawing of a layer of inventive antenna；
Fig. 6 is the structure partial enlarged drawing of waveguide layer Orthogonal Double-layer another layer of mode coupler of inventive antenna.
Detailed description of the invention
The present invention is described in detail with detailed description of the invention below in conjunction with the accompanying drawings:
As shown in Figure 1, Figure 2 and Figure 3, the double-circle polarization waveguide array antenna of the present invention, including waveguide, waveguide includes radiating layer 1, circular polarisation conversion layer 2, horizontal polarization and the vertical polarization waveguide transport layer 4 being cascading.Radiating layer and circular polarisation conversion layer waveguide cross-section are square.Horizontal polarization and vertical polarization waveguide transport layer waveguide cross-section are rectangle.Radiating layer is used for receiving double-circle polarization electromagnetic signal for square loudspeaker.Circular polarisation conversion layer includes dieelctric sheet 3.Dieelctric sheet is parallel with waveguide axis, its dual-side is connected at this layer of inwall diagonal angle of waveguide, this layer of inner chamber of waveguide is separated into two spaces, with by dieelctric sheet by the double-circle polarization Signal separator horizontal polarization signals as constant amplitude and vertical polarization signal.Horizontal polarization and vertical polarization waveguide transport layer include upper and lower two-layer orthomode coupler (Orthogonal modular
Transducer, i.e. OMT).Every layer of orthomode coupler transmission structure of horizontal polarization and vertical polarization waveguide transport layer can use the structure of prior art.
Radiating layer is square loudspeaker, and the area that can make full use of rectangular flat antenna surface receives circularly polarized signal effect to improve, it is achieved homalographic reception maximizes.
The dielectric constant of dieelctric sheet is 5.5-6.5, preferably 5.8-6.2, more preferably 6.Dieelctric sheet plastic medium material is made, and so can alleviate weight, reduce cost, naturally it is also possible to use other dielectric materials to make.
The dieelctric sheet both sides length of side is preferably 12-16mm, exceed this scope will affect reception or increase volume, improve cost, be further preferably 13-15mm, more preferably 14mm.
Dieelctric sheet thickness is preferably 1.5-2mm, exceed this scope will affect reception or increase volume, improve cost, be further preferably 1.8-2mm, more preferably 2mm.
The synthetic resin material of antenna wave guide Coating conductive layer is made, it would however also be possible to employ other conventional antenna wave guide materials.
For conventional ku band signal, the length of side of square loudspeaker unit lattice is preferably 25-30mm, is further preferably 26-28mm, i.e. long less than 1.2 times of working electromagnet wave-waves.
As in figure 2 it is shown, the connected mode of dieelctric sheet is preferably: being provided with slot at waveguide circular polarisation conversion layer inwall diagonal angle, this slot is fixed in dieelctric sheet dual-side grafting.Can certainly connect with other conventional fixed forms are fixing.
As it is shown on figure 3, the two ends that are preferably shaped to of dieelctric sheet are that concave shaped, two ends closest approach distance are less than its both sides length of side.Most preferably dieelctric sheet two ends concave shaped hatching line is shaped as the waist of isosceles triangle.Certainly, concave shaped hatching line shape in dieelctric sheet two ends can also be other shapes such as arcs.The shape of dieelctric sheet two ends concave shaped, can improve the reception of antenna, alleviate weight, reduction cost.Dieelctric sheet two ends closest approaches distance preferably 3-6mm, exceed this scope will affect reception or increase volume, raising cost, be further preferably 4-5mm, more preferably 5mm.
As shown in Figure 4, the antenna of the present invention can make 6 × 16 array of cells forms.Other conventional array of cells forms can certainly be made.The quantity of cell can set according to the gain requirement landed the satellite of antenna territory of use needed for field intensity.
As shown in Figure 5, Figure 6, two layers of orthomode coupler transmission structure of horizontal polarization and vertical polarization waveguide transport layer are rectangular waveguide transmission structure, can use the common structure of prior art, the electromagnetic wave energy received by unit by 1:1 or 1:2 power combiner device and impedance matching converges to get up to eventually enter into tuner.The position of these two layers of orthomode couplers can exchange, respectively transmission horizontal polarization and vertical polarization signal.It is prior art with the connected mode of tuner.
As 96 unit double-circle polarization satellite antennas be in the television receiving antenna that done of nine satellites, it receives the KU band signal that frequency is 11.7G-12.3GHz, is about a wavelength according to Frequency Design cell size；Land its gain requirement of field strength analysis according to territory of use, be set to the 96 cell forms of 6 × 16.Antenna is made up of the synthetic resin material of Coating conductive layer, and volume size is 401mm × 151mm × 55.7mm.Radiating element is square horn mouth, and signal accepts incoming circular polarisation conversion layer down.Every layer of orthomode coupler transmission structure of horizontal polarization and vertical polarization waveguide transport layer is rectangular waveguide transmission structure, square-section is 15 × 3.2, and the electromagnetic wave energy received by unit by 1:1 or 1:2 power combiner device and impedance matching converges to get up to eventually enter into tuner.This antenna achieves common antenna and receives the purpose processing double-circle polarization electromagnetic signal simultaneously, and simple in construction, volume is little, lightweight, and dual polarized signals one side receiving efficiency can reach 95%, low cost.
The operation principle of the present invention is: ground floor radiating layer is square horn mouth array, for receiving double-circle polarization electromagnetic signal, receive the signal come and enter the second layer by coupling throughhole, i.e. circular polarisation conversion layer, this Rotating fields is that square diagonal places swallow-tail form dieelctric sheet after square horn, by changing the dielectric constant of dieelctric sheet and increasing dieelctric sheet thickness, dieelctric sheet length circularly polarized signal being converted into needed for linear polarization receives can be reduced, then can reduce the height of antenna, this for realize high-gain and outward appearance small and exquisite be helpful.Circularly polarized signal is through dieelctric sheet, it is separated into the signal that the signal being perpendicular to dieelctric sheet direction is equal with the amplitude being parallel to dieelctric sheet, but the signal phase being parallel to dieelctric sheet is leading or falls behind (being determined by left-right rotary) in the signal phase 90 degree being perpendicular to dieelctric sheet, after the dieelctric sheet of particular design, the signal phase making parallel dieelctric sheet slows down 90 degree, the signal of perpendicular media sheet is the most impacted, so the phase place of last parallel signal is identical with vertical signal phase place or contrary, again because they are separated by circularly polarized signal, it it is constant amplitude, so the signal being finally synthesizing and dieelctric sheet angle are 45 degree, for horizontal polarization or vertical polarization signal.The horizontal polarization being transformed and vertical polarization signal enter in third layer, transmit respectively, finally meet at tuner in upper and lower two-layer OMT structure.
Claims (8)
1. for receiving a double-circle polarization waveguide array antenna for KU band signal, including waveguide, it is characterised in that: described waveguide includes radiating layer (1), circular polarisation conversion layer (2), horizontal polarization and vertical polarization waveguide transport layer (4) being cascading；Described radiating layer and circular polarisation conversion layer waveguide cross-section are square；Described horizontal polarization and vertical polarization waveguide transport layer waveguide cross-section are rectangle；Described radiating layer is used for receiving double-circle polarization electromagnetic signal for square loudspeaker；Described circular polarisation conversion layer includes dieelctric sheet (3), described dieelctric sheet is parallel with waveguide axis, its dual-side is connected at this layer of inwall diagonal angle of waveguide, this layer of inner chamber of waveguide is separated into two spaces, the dielectric constant of described dieelctric sheet is 5.5-6.5, with by dieelctric sheet by the double-circle polarization Signal separator vertical polarization signal as constant amplitude and horizontal polarization signals；Described horizontal polarization and vertical polarization waveguide transport layer include upper and lower two-layer orthomode coupler；Described dieelctric sheet two ends are that concave shaped, two ends closest approach distance are less than its both sides length of side；The length of side of described square loudspeaker unit lattice is 25-30mm.
Double-circle polarization waveguide array antenna the most according to claim 1, it is characterised in that: described dieelctric sheet two ends concave shaped hatching line is shaped as the waist of isosceles triangle.
Double-circle polarization waveguide array antenna the most according to claim 1, it is characterised in that: the described a length of 12-16mm of dieelctric sheet dual-side.
Double-circle polarization waveguide array antenna the most according to claim 1 and 2, its feature exists: described dieelctric sheet two ends closest approach distance is 3-6mm.
Double-circle polarization waveguide array antenna the most according to claim 1, it is characterised in that: described dieelctric sheet thickness is 1.5-2mm.
Double-circle polarization waveguide array antenna the most according to claim 1, it is characterised in that: being provided with slot at described waveguide circular polarisation conversion layer inwall diagonal angle, this slot is fixed in described dieelctric sheet dual-side grafting.
7. according to the double-circle polarization waveguide array antenna described in claim 1 or 2 or 3 or 5 or 6, it is characterised in that: described dieelctric sheet plastic medium material is made.
8. according to the double-circle polarization waveguide array antenna described in claim 1 or 2 or 3 or 5 or 6, it is characterised in that: described antenna is the array of cells form of 6 × 16.
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| CN201410354540.XA CN104143695B (en) | 2014-07-24 | 2014-07-24 | Double-circle polarization waveguide array antenna |
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| CN201410354540.XA CN104143695B (en) | 2014-07-24 | 2014-07-24 | Double-circle polarization waveguide array antenna |
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| CN104143695B true CN104143695B (en) | 2016-08-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106356640B (en) * | 2016-08-31 | 2019-04-05 | 电子科技大学 | A kind of broadband double-circle polarization planar waveguide array antenna |
| CN106207439B (en) * | 2016-09-08 | 2023-03-24 | 中国电子科技集团公司第五十四研究所 | Double-circular-polarization antenna unit and array antenna |
| CN107871935A (en) * | 2016-09-27 | 2018-04-03 | 南京安天纳通信技术有限公司 | Dual polarization transmit-receive sharing waveguide array antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59117303A (en) * | 1982-12-23 | 1984-07-06 | Nec Corp | Polarizer |
| US5061037A (en) * | 1990-10-22 | 1991-10-29 | Hughes Aircraft Company | Dual septum polarization rotator |
| CN204088575U (en) * | 2014-07-24 | 2015-01-07 | 郴州希典科技有限公司 | Double-circle polarization waveguide array antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101083359B (en) * | 2007-07-10 | 2012-05-09 | 中国电子科技集团公司第五十四研究所 | Process for manufacturing high gain dual-linear polarization or dual-circle polarization waveguide array antennas |
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- 2014-07-24 CN CN201410354540.XA patent/CN104143695B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59117303A (en) * | 1982-12-23 | 1984-07-06 | Nec Corp | Polarizer |
| US5061037A (en) * | 1990-10-22 | 1991-10-29 | Hughes Aircraft Company | Dual septum polarization rotator |
| CN204088575U (en) * | 2014-07-24 | 2015-01-07 | 郴州希典科技有限公司 | Double-circle polarization waveguide array antenna |
Non-Patent Citations (1)
| Title |
|---|
| "圆极化器技术的研究";刘蕊花;《中国优秀硕士学位论文》;20110115;第34-36页，图4.1-4.2 * |
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