CN109473781A - A kind of high XPD dual polarized antenna feed of ultra wide band - Google Patents
A kind of high XPD dual polarized antenna feed of ultra wide band Download PDFInfo
- Publication number
- CN109473781A CN109473781A CN201811288039.2A CN201811288039A CN109473781A CN 109473781 A CN109473781 A CN 109473781A CN 201811288039 A CN201811288039 A CN 201811288039A CN 109473781 A CN109473781 A CN 109473781A
- Authority
- CN
- China
- Prior art keywords
- wide band
- ultra wide
- polarized antenna
- antenna feed
- working medium
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
The present invention discloses a kind of high XPD dual polarized antenna feed of ultra wide band, it is characterized in that, include: working medium radiation head, circular waveguide tube, ultra wideband dual polarization separator, adjust screw, the working medium radiation head is mounted on circular waveguide tube one end, ultra wideband dual polarization separator is mounted on the circular waveguide tube other end, wherein the ultra wide band polarization separator includes metal tube and the standard rectangular waveguide mouth two set gradually thereon, polarization separation structure, square circle transformation structure, standard rectangular waveguide mouth one, adjusts the side that metal tube is arranged in screw.The present invention reduces the narrow limitation of frequency band caused by the polarization conversion of deutostoma, middle section is filtered by simple Shorted post by replacing rectangle to couple to circular window by square circle conversion；The radiant section of front is to carry out radiation matching by multistage step, and entire design has the characteristics that high-performance, ultra wide bandwidth.
Description
Technical field
The present invention relates to a kind of feedbacks of the high XPD dual polarized antenna of communication antenna equipment technical field more particularly to ultra wide band
Source
Background technique
Parabola antenna is one of antenna type earliest in the antenna-feeder system of the communications field.Parabola antenna will be located at focus
The electromagnetic wave that feed is emitted reflects towards front and keeps same phase, to form high directivity wave beam, or by parallel beam
Converge at focus.High directivity is its most significant feature, therefore is often applied to high-gain occasion, as radio astronomy is looked in the distance
Mirror, satellite earth receiving station, fire control radar, microwave relay transmission etc..It is realized in a communications system frequently with parabola antenna
The aerial microwave link communication of large capacity.In recent years, LTE, return network institute are developed to from GSM, UMTS with cordless communication network
The carrying wideband requirements needed are growing.For telecom operators, the large carrying capacity of raising backbone network can be passed through
It is big to alleviate the nervous frequency resource of wireless transmission.Improve backbone network bearing capacity can by increase communication band bandwidth,
Outside by the way of these are general using multimode regulative mode, technology can also be reused using cross polarization frequency.Cross-pole
It is different using two cross polarization individual transmissions on a same frequency in same microwave link for changing frequency to reuse technology
Data-signal.Obviously in order to make on a polarization (such as vertical polarization) signal that transmits will not severe jamming another polarization
Transmission signal in (such as horizontal polarization), it is desirable that the XPD value of Transmission system is sufficiently high.The dual-polarized parabolic antenna of high XPD value
The market demand quietly give birth to.High XPD dual-polarized parabolic antenna is on the basis of original conventional parabola antenna, to XPD
(cross polarization discrimination) this index is put forward higher requirements, and to promote the anti-interference ability of its whole system, makes backbone network
Bearing capacity promoted significantly.The bandwidth of high XPD antenna currently on the market can only accomplish 8% substantially, seriously restrict antenna
Cost and the widebandization of network are laid out.Currently, high XPD antenna feed is mainly mutual by two by using the form of polarization rotary needle
After linear polarization Signal separator or synthesis in 90 °, launched by the radial chamber of front end, the structure application band of this form
Narrow bandwidth be a big defect.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide one kind, the processing is simple, performance is easy in fact
The high XPD dual polarized antenna feed of existing ultra wide band.
To achieve the above objectives, the present invention adopts the following technical scheme that.
A kind of high XPD dual polarized antenna feed of ultra wide band characterized by comprising working medium radiation head, circular waveguide tube,
Ultra wideband dual polarization separator adjusts screw, and the working medium radiation head is mounted on circular waveguide tube one end, ultra wideband dual polarization separation
Device is mounted on the circular waveguide tube other end, wherein the working medium radiation head includes the interior cylindrical dielectric in axial direction set gradually
With section, pipe outer cone working medium radiation body, one end of pipe outer cone working medium radiation body is provided with circular cone bottom surface, the ultra wide band polarization
Separator includes metal tube and the standard rectangular waveguide mouth two set gradually thereon, polarization separation structure, square circle transformation structure, mark
Quasi-retangular wave leads mouth one, adjusts the side that metal tube is arranged in screw.
As a further illustration of the above scheme, the interior cylindrical dielectric matching section of the working medium radiation head is inserted into circular waveguide tube
Interior to realize impedance matching, pipe outer cone working medium radiation body then carries out geometry figuration to its side and bottom surface respectively, adjusts phase
With primary pattern, the circular cone bottom surface spreading metal coating of pipe outer cone working medium radiation body is to play the role of subreflector.
Further, medium matching section is made of the different cylindrical section of four section diameter Di and length Li in the pipe,
Wherein at least there is the diameter Di of a pitch circle shell of column consistent with waveguide bore D.Dielectric portion in the present embodiment, in circular waveguide tube
It point being made of altogether four pitch circle cylinders, their diameter and length is respectively as follows: D1 and L1, D2 and L2, D3 and L3, D4 and L4, and second
Section and Section four of diameter D2 and D4 are equal to circular waveguide tube internal diameter D, primarily to the standing wave for adjusting radiation head is used.
Further, the pipe outer cone working medium radiation body, circular conical surface are the curved surface of different-diameter and height.
Further, the working medium radiation head the selection of material be loss with dielectric constant it is lower, be easily worked, price it is low
Honest and clean material, such as polytetrafluoroethylene (PTFE), polyethylene, polystyrene, polyamide/polyimides, cyanate.
Further, the circular waveguide tube internal diameter selection need to guarantee the transmission of TE11 main mould and power capacity requirement.
Further, the circular waveguide tube selection electric conductivity is relatively strong, thermal expansion coefficient is smaller, lower-cost metal material
Material, such as fine copper, alloyed copper, fine aluminium and die casting aluminium.
Further, the size of described two standard rectangular waveguide mouths is that corresponding frequency range can guarantee that TE10 main mould passes respectively
Defeated standard rectangular waveguide dimensions A and B, is to have as defined in GB standard, its position is respectively in the same of the cavity of metal tube
Side either both sides, major function is the effect that signal enters cavity or transmits out from cavity.
Further, the square circle transformation structure is mainly made of the either multistage truncation circle of 1 rank, including right angle square
Shape angular transformation, the square circle conversion of multistage truncation circle, can do round square by this structure and convert.
Further, the polarization separation structure be by several be arranged in metal tube chamber and with standard waveguide mouth one
Parallel metal needle composition, the effect of the metal needle mainly signal of decomposition standard waveguide mouth two and purification standard waveguide mouth one
Signal.
The beneficial effects of the present invention are:
1, two polarization need not move through polarization rotation, and two defeated rectangular waveguide input mouth structures intersect, and deutostoma polarization is direct
Converted through square circle, prosopyle polarization by several Shorted post isolation filters reaches energy separation, using by the conversion of square circle instead of rectangle to
Circular window coupling, reduces the narrow limitation of frequency band caused by the polarization conversion of deutostoma, and middle section passes through simple short circuit
Needle is filtered；The radiant section of front is to carry out radiation matching by multistage step, and entire design has high-performance, ultra wide band
Wide feature.
2, the two positive criss-cross fashions of standard rectangular waveguide mouth separately input, and deutostoma directly passes through round square conversion and is input to chamber
Body, and reach polarization isolation, the rotation more progressive than the Shorted post that conventional using is spaced 8~10 degree of this method by several Shorted posts
It passs on to 90 degree of method either 45 degree of needles and turns polarized method, the later period process of assembling is less, and bandwidth is wider.
Detailed description of the invention
Fig. 1 show the sectional view of the high XPD dual polarized antenna feed of ultra wide band.
Fig. 2 show the sectional view of working medium radiation head.
Fig. 3 show the sectional view of ultra wideband dual polarization separator.
Fig. 4 show the perspective view of ultra wideband dual polarization separator.
Fig. 5 show the perspective view of polarization separation structure.
Fig. 6 show the S parameter figure of the high XPD bipolar feed source 6W of ultra wide band, | S11 |, | S22 |≤- 27.5dB.
Description of symbols:
1: working medium radiation head, 1-1: interior cylindrical dielectric matching section, 1-2:: pipe outer cone working medium radiation body, 1-3: conical bottom
Face, 2: circular waveguide tube, 3: ultra wideband dual polarization separator, 3-1: metal tube, 3-2: standard rectangular waveguide mouth one, 3-3: square circle becomes
Structure is changed, 3-4: polarization separation structure, 3-5: standard rectangular waveguide mouth two, 3-6: metal needle, 4: adjusting screw.
Specific embodiment
Essence of the invention is more fully understood for convenience of those skilled in the art, with reference to the accompanying drawing to specific reality of the invention
The mode of applying is described in detail.
As shown in Figure 1-Figure 3, the high XPD dual polarized antenna feed of a kind of ultra wide band, comprising: working medium radiation head 1, circular waveguide
Pipe 2, ultra wideband dual polarization separator 3 adjust screw 4, and the working medium radiation head 1 is mounted on 2 one end of circular waveguide tube, and ultra wide band is double
Polarization separator 3 is mounted on 2 other end of circular waveguide tube, wherein the working medium radiation head 1 includes in axial direction setting gradually
Interior cylindrical dielectric matching section 1-1, pipe outer cone working medium radiation body 1-2, one end of pipe outer cone working medium radiation body is provided with circular cone
Bottom surface 1-3, the ultra wide band polarization separator 3 include metal tube 3-1 and two 3- of standard rectangular waveguide mouth set gradually thereon
5, polarization separation structure 3-4, square circle transformation structure 3-3, one 3-2 of standard rectangular waveguide mouth adjust screw 4 and are arranged in metal tube 3-
1 side.
As shown in fig. 6, the technical program operates mainly in 5.825GHz~11.7GHz, and its reflection coefficient | S11 |≤-
26.5dB, orthogonal mode isolation | S21 |≤- 45dB, standing-wave ratio VSWR≤1.1, short-circuit IPI≤- 44dB.In addition, in entire band
Directional diagram has good amplitude flatness, phase equalization, good cross polarization, lesser secondary lobe and back lobe, and very
High gain efficiency.
When specific works, entire feed scheme is achieved in that identical electric signal respectively from standard rectangular waveguide mouth one
It is incoming with two.The signal entered from standard rectangular waveguide mouth one reaches cavity after the square circle conversion by square circle transformational structure, and
It is purified by metal needle.After the signal entered from standard rectangular waveguide mouth two enters cavity, the effect of metal needle is mainly to signal
Separation barrier effect is carried out, signal can only be propagated forward due to electric field relationship.Two signals are incoming using the nozzle of metal tube
Circular waveguide tube is reflected on parabola antenna into working medium radiation head by the subreflector of metallization.
The above specific embodiment is described in detail for the essence of the present invention, but can not be come with this to of the invention
Protection scope is limited.It should be evident that under the inspiration of the present invention, those of ordinary skill in the art can also carry out
Many improvement and modification, it should be noted that these improvement and modification are all fallen within the scope of the claims of the present invention.
Claims (10)
1. a kind of high XPD dual polarized antenna feed of ultra wide band characterized by comprising working medium radiation head, surpasses circular waveguide tube
Wide band dipole separator adjusts screw, and the working medium radiation head is mounted on circular waveguide tube one end, ultra wideband dual polarization separator
It is mounted on the circular waveguide tube other end, wherein the working medium radiation head includes the interior cylindrical dielectric matching in axial direction set gradually
Section, pipe outer cone working medium radiation body, one end of pipe outer cone working medium radiation body are provided with circular cone bottom surface, the ultra wide band polarization point
Include metal tube from device and set gradually thereon standard rectangular waveguide mouth two, polarization separation structure, square circle transformation structure, standard
Rectangular waveguide mouth one adjusts the side that metal tube is arranged in screw.
2. a kind of high XPD dual polarized antenna feed of ultra wide band according to claim 1, which is characterized in that the medium
In the interior cylindrical dielectric matching section insertion circular waveguide tube of radiation head, pipe outer cone working medium radiation body respectively to its side and bottom surface into
Row geometry figuration adjusts phase and primary pattern, the circular cone bottom surface spreading metal coating of pipe outer cone working medium radiation body.
3. a kind of high XPD dual polarized antenna feed of ultra wide band according to claim 1, which is characterized in that in the pipe
Medium matching section is made of the different cylindrical section of four section diameter Di and length Li, wherein at least there is the diameter of a pitch circle shell of column
Di is consistent with waveguide bore D.
4. a kind of high XPD dual polarized antenna feed of ultra wide band according to claim 1, which is characterized in that outside the pipe
Circular cone working medium radiation body, circular conical surface are the curved surface of different-diameter and height.
5. a kind of high XPD dual polarized antenna feed of ultra wide band according to claim 1, which is characterized in that the medium
Radiation head the selection of material is loss and the lower material of dielectric constant, such as polytetrafluoroethylene (PTFE), polyethylene, polystyrene, polyamides
Amine/polyimides, cyanate.
6. a kind of high XPD dual polarized antenna feed of ultra wide band according to claim 1, which is characterized in that the round wave
Catheter diameter selection need to guarantee the transmission of TE11 main mould and power capacity requirement.
7. a kind of high XPD dual polarized antenna feed of ultra wide band according to claim 1, which is characterized in that the round wave
Conduit selects electric conductivity compared with strong, the lesser metal material of thermal expansion coefficient, such as fine copper, alloyed copper, fine aluminium and die casting aluminium.
8. a kind of high XPD dual polarized antenna feed of ultra wide band according to claim 1, which is characterized in that described two
The size of standard rectangular waveguide mouth is standard rectangular the waveguide dimensions A and B that corresponding frequency range can guarantee the transmission of TE10 main mould respectively,
It is provided by GB standard, position is respectively on same one side of the cavity of metal tube either both sides.
9. a kind of high XPD dual polarized antenna feed of ultra wide band according to claim 1, which is characterized in that the square circle
Mapped structure is mainly made of the either multistage truncation circle of 1 rank, the square including orthogonal rectangle angular transformation, multistage truncation circle
Circle conversion.
10. a kind of high XPD dual polarized antenna feed of ultra wide band according to claim 1, which is characterized in that the polarization
Separated structure is arranged in metal tube chamber by several and the metal needle parallel with standard waveguide mouth one forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811288039.2A CN109473781A (en) | 2018-10-31 | 2018-10-31 | A kind of high XPD dual polarized antenna feed of ultra wide band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811288039.2A CN109473781A (en) | 2018-10-31 | 2018-10-31 | A kind of high XPD dual polarized antenna feed of ultra wide band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109473781A true CN109473781A (en) | 2019-03-15 |
Family
ID=65666397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811288039.2A Pending CN109473781A (en) | 2018-10-31 | 2018-10-31 | A kind of high XPD dual polarized antenna feed of ultra wide band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109473781A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5248987A (en) * | 1991-12-31 | 1993-09-28 | Massachusetts Institute Of Technology | Widebeam antenna |
| CN201533000U (en) * | 2009-09-24 | 2010-07-21 | 广东盛路通信科技股份有限公司 | Direct-fastening type polarization separator |
| CN201749954U (en) * | 2010-07-12 | 2011-02-16 | 广东盛路通信科技股份有限公司 | Feedforward parabolic antenna feed system |
| CN201829600U (en) * | 2010-10-20 | 2011-05-11 | 广东盛路通信科技股份有限公司 | Polarization separator |
| CN102136634A (en) * | 2011-01-12 | 2011-07-27 | 电子科技大学 | Ku/Ka frequency band circularly polarization integrated receiving and transmitting feed source antenna |
| CN103078177A (en) * | 2013-01-15 | 2013-05-01 | 西安普天天线有限公司 | Dual-polarization feed source of microwave antenna of synchronous data hierarchy |
| CN103457033A (en) * | 2013-08-27 | 2013-12-18 | 上海交通大学 | Compact broadband circular polarizer |
| CN104600435A (en) * | 2014-12-27 | 2015-05-06 | 广东盛路通信科技股份有限公司 | Fractal media resonant antenna used as paraboloidal feed source |
| CN205790308U (en) * | 2016-05-24 | 2016-12-07 | 西安恒达微波技术开发有限公司 | A kind of ultra broadband high isolation polarization allotter |
| CN107046177A (en) * | 2016-12-26 | 2017-08-15 | 广东盛路通信科技股份有限公司 | The Bipolarized paraboloid antenna feed of feedback type |
| CN209119352U (en) * | 2018-10-31 | 2019-07-16 | 广东盛路通信科技股份有限公司 | A kind of high XPD dual polarized antenna feed of ultra wide band |
-
2018
- 2018-10-31 CN CN201811288039.2A patent/CN109473781A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5248987A (en) * | 1991-12-31 | 1993-09-28 | Massachusetts Institute Of Technology | Widebeam antenna |
| CN201533000U (en) * | 2009-09-24 | 2010-07-21 | 广东盛路通信科技股份有限公司 | Direct-fastening type polarization separator |
| CN201749954U (en) * | 2010-07-12 | 2011-02-16 | 广东盛路通信科技股份有限公司 | Feedforward parabolic antenna feed system |
| CN201829600U (en) * | 2010-10-20 | 2011-05-11 | 广东盛路通信科技股份有限公司 | Polarization separator |
| CN102136634A (en) * | 2011-01-12 | 2011-07-27 | 电子科技大学 | Ku/Ka frequency band circularly polarization integrated receiving and transmitting feed source antenna |
| CN103078177A (en) * | 2013-01-15 | 2013-05-01 | 西安普天天线有限公司 | Dual-polarization feed source of microwave antenna of synchronous data hierarchy |
| CN103457033A (en) * | 2013-08-27 | 2013-12-18 | 上海交通大学 | Compact broadband circular polarizer |
| CN104600435A (en) * | 2014-12-27 | 2015-05-06 | 广东盛路通信科技股份有限公司 | Fractal media resonant antenna used as paraboloidal feed source |
| CN205790308U (en) * | 2016-05-24 | 2016-12-07 | 西安恒达微波技术开发有限公司 | A kind of ultra broadband high isolation polarization allotter |
| CN107046177A (en) * | 2016-12-26 | 2017-08-15 | 广东盛路通信科技股份有限公司 | The Bipolarized paraboloid antenna feed of feedback type |
| CN209119352U (en) * | 2018-10-31 | 2019-07-16 | 广东盛路通信科技股份有限公司 | A kind of high XPD dual polarized antenna feed of ultra wide band |
Non-Patent Citations (1)
| Title |
|---|
| 沈金泉等: "圆弧矩形波导与截顶圆波导", 《1997年全国微波会议论文集（上册）》, vol. 2015, pages 146 - 149 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107046177B (en) | Feed source of back-feed type dual-polarized parabolic antenna | |
| CN107546475B (en) | A kind of dual-band antenna feed applied to 5G communication | |
| CN201758184U (en) | Satellite communication antenna for Ka waveband | |
| CN206301950U (en) | The Bipolarized paraboloid antenna feed of feedback type | |
| CN203377376U (en) | A small-size broadband helical antenna | |
| CN211530188U (en) | Novel end-fire antenna based on split ring resonator | |
| CN104600435A (en) | Fractal media resonant antenna used as paraboloidal feed source | |
| CN107302134B (en) | End-fire antenna based on artificial surface plasmon | |
| CN209119352U (en) | A kind of high XPD dual polarized antenna feed of ultra wide band | |
| CN1758484A (en) | Backfire antenna | |
| CN106159435A (en) | Ultra-wideband fractal antenna | |
| CN109713433B (en) | Split type radiating element, antenna array and base station antenna | |
| CN108565535A (en) | A kind of low windage abnormity monopole ultra-wide band antenna with high frequency trap characteristic | |
| CN209119299U (en) | A kind of parabolic antenna feed source of double frequency shared | |
| CN101651258B (en) | Improved structure of wideband omnidirectional antenna | |
| CN109473781A (en) | A kind of high XPD dual polarized antenna feed of ultra wide band | |
| CN204375976U (en) | A kind of low section pectination network array antenna for base station | |
| CN204167475U (en) | Horizontally polarized omnidirectional antenna altogether | |
| CN217485700U (en) | High-gain ultra-wideband dual-polarized directional oscillator | |
| CN107591614B (en) | High-gain omnidirectional array antenna | |
| CN103000987B (en) | High-gain broadband omnidirectional antenna | |
| CN204809385U (en) | Take parasitic element's broadband omnidirectional radiation monopole antenna | |
| CN204481137U (en) | A kind of integration of the Ka/S frequency range for reflector antenna feed | |
| CN102055077A (en) | Linearly polarized broadband backfire helical antenna | |
| CN105244607A (en) | Spiral-loading high-gain omnidirectional monopole antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |