CN208904223U - A kind of dual polarization platelet-like antenna - Google Patents
A kind of dual polarization platelet-like antenna Download PDFInfo
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- CN208904223U CN208904223U CN201821799522.2U CN201821799522U CN208904223U CN 208904223 U CN208904223 U CN 208904223U CN 201821799522 U CN201821799522 U CN 201821799522U CN 208904223 U CN208904223 U CN 208904223U
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- reflecting plate
- polarization
- platelet
- antenna
- radiating doublet
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Abstract
The utility model discloses a kind of dual polarization platelet-like antennas, including reflecting plate ,+45 ° of polarization ports and -45 ° of polarization ports, the left end of+45 ° of polarization ports on the right side of the first feed cable and reflecting plate by being fixedly connected, the left end of -45 ° of polarization ports on the right side of the second feed cable and reflecting plate by being fixedly connected, one end of first feed cable is through reflecting plate and extends to the inside of reflecting plate, the left end of first feed cable is fixedly connected with radiating doublet, and the utility model relates to antenna technical fields.The dual polarization platelet-like antenna, utilize reflecting plate, + 45 ° of polarization ports and -45 ° of polarization ports, radiating doublet and coupling aluminium flake, radiating doublet uses air microstrip technology, uses this structure as the radiating doublet of dual polarization platelet-like antenna, avoids the radiating doublet bring dielectric loss of circuit board structure, reduce the radiation effect that antenna is improved using dielectric loss brought by dielectric microstrip.
Description
Technical field
The utility model relates to antenna technical field, specially a kind of dual polarization platelet-like antenna.
Background technique
The dual polarization platelet-like antenna that domestic existing frequency range is 600MHz-800MHz, performance indicator are all less managed at present
Think, first is that the bandwidth of antenna is inadequate；Second is that small part antenna frequencies range can reach, but standing-wave ratio is 2.0 or so, front and back ratio
Less than 20dB, the half-power angle of horizontal plane is larger, is close or larger than 90 °, and radiance index is poor, especially horizontal plane
Half-power angle is big in the discreteness of entire frequency range, not enough restrains, and influences the quality of grid covering, while operator is section
About cost of investment avoids the repeated construction of engineering, it is desirable that antenna can work as far as possible than in wider frequency band, and existing low
Frequency range dual polarization platelet-like antenna is difficult to take into account entire frequency range, even if small part circuitry specifications can satisfy wide band requirement,
But radiance index is difficult to meet operator's requirement.For microstrip antenna because its structure is simple, processing cost is low, light-weight
Many advantages, such as, become a key technology of field of antenna, therefore, the microstrip antenna of various performances is all in studied, omnidirectional
Property also become microstrip antenna development a trend, such as using microstrip transmission line carry out cross feed microstrip antenna may be implemented
Omnidirectional radiation performance.The linear array antenna of one excitation, which is formed by the micro-strip section cascade of multiple λ/2, micro-
Floor and conduction band with line segment are alternately placed on the two sides of dielectric substrate, and the floor width of micro-strip is variation, utilizes friendship
Fork connection is to achieve the purpose that paraphase.In addition to transmitting mould in the structure, there is also the spokes that the discontinuity of cross-connection point is formed
Mould is penetrated, inner surface of the wave along conduction band and floor transmits, and the size of radiation is controlled by floor width, to obtain good omni-directional
Can, width is limited in the range of about λ/4.So that the antenna is reached good radiation efficiency, impedance can also be carried out to it
Match, rectangle post-chip is added on every section of conduction band, improves matching by increasing reactive component.
Antenna can be used often to have thicker larger volume, heavier-weight, thickness, single port, frequency band in existing antenna technology
Problem relatively narrow, radiance is poor.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of dual polarization platelet-like antenna, solves usable
Antenna often has thicker larger volume, heavier-weight, thickness, single port, the problem that frequency band is relatively narrow, radiance is poor.
In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of dual polarization platelet-like day
The left end of line, including reflecting plate ,+45 ° of polarization ports and -45 ° of polarization ports ,+45 ° of polarization port passes through the first feed electricity
It is fixedly connected on the right side of cable and reflecting plate, the left end of -45 ° of polarization port passes through the right side of the second feed cable and reflecting plate
It is fixedly connected, one end of first feed cable is through reflecting plate and extends to the inside of reflecting plate, first feed
The left end of cable is fixedly connected with radiating doublet, and one end of second feed cable through reflecting plate and extends to reflecting plate
Inside, the left end of second feed cable are fixedly connected with radiating doublet, and the outer surface of the radiating doublet passes through the first spiral shell
Silk is threaded with feed copper sheet, and the left side at the top of the reflecting plate is connected with coupling aluminium flake by the second screw thread.
Preferably, the radiating surface of every group of radiating doublet is all made of tapered and cambered butterfly petal shape.
Preferably, the electrical length of every group of radiating doublet radiating surface is made of the radiating surface of two 1/4 λ 0, wherein λ
0 is the free wavelength in space of center frequency point.
Preferably, the height of the radiating surface of the radiating doublet to reflecting plate is 1/4 λ 0, is 105mm-125mm, wherein λ
0 is the free wavelength in space of center frequency point.
Preferably, the length of the coupling aluminium flake is 65mm-76mm, is highly 56mm-72mm, with a thickness of 1.1mm-
1.4mm, material therefor are aluminium sheet.
Preferably, the length and width of the reflecting plate is 262mm-286mm, with a thickness of 1.4mm-1.7mm, material therefor
For aluminium alloy plate.
Beneficial effect
The utility model provides a kind of dual polarization platelet-like antenna.Have compared with prior art following beneficial to effect
Fruit:
(1), the dual polarization platelet-like antenna, by include reflecting plate ,+45 ° of polarization ports and -45 ° of polarization ports ,+
By being fixedly connected on the right side of the first feed cable and reflecting plate, the left end of -45 ° of polarization ports is logical for the left end of 45 ° of polarization ports
It crosses on the right side of the second feed cable and reflecting plate and is fixedly connected, one end of the first feed cable through reflecting plate and extends to anti-
The inside of plate is penetrated, the left end of the first feed cable is fixedly connected with radiating doublet, and reflecting plate is run through in one end of the second feed cable
And the inside of reflecting plate is extended to, the left end of the second feed cable is fixedly connected with radiating doublet, and the outer surface of radiating doublet is logical
It crosses the first screw thread and is connected with feed copper sheet, the left side at the top of reflecting plate is connected with coupling aluminium flake by the second screw thread,
Using reflecting plate ,+45 ° of polarization ports and -45 ° of polarization ports, radiating doublet and coupling aluminium flake, radiating doublet use air microstrip
Technology uses this structure as the radiating doublet of dual polarization platelet-like antenna, avoids the radiating doublet bring of circuit board structure
Dielectric loss reduces using dielectric loss brought by dielectric microstrip, improves the radiation efficiency of antenna.
(2), the dual polarization platelet-like antenna, it is tapered and cambered by being all made of in the radiating surface of every group of radiating doublet
Butterfly petal shape, using radiating doublet radiating surface use tapered and cambered butterfly petal shape so that feed
The electrical length that point reaches each top is gradual change, to reach the resonance of each frequency point, since the radiating surface of radiating doublet uses
Tapered and cambered butterfly petal shape design has connected different smooth equal to the top of the radiating surface of the radiating doublet
Changeover portion, so that, to effectively broaden impedance and bandwidth, realizing that the wideband of frequency range is special along antenna surface current reflection very little
Property.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the radiating doublet of the utility model and the structural schematic diagram of feed copper sheet；
Fig. 3 is the structural schematic diagram of the coupling aluminium flake and the second screw of the utility model.
In figure: 1- reflecting plate, 2-+45 ° of polarization port, 3--45 ° of polarization port, the first feed cable of 4-, 5- second are fed
Cable, 6- radiating doublet, 7- coupling aluminium flake, the first screw of 8-, 9- feed copper sheet, the second screw of 10-.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of dual polarization platelet-like antenna, including reflection
1 ,+45 ° of polarization port 2 of plate and -45 ° of polarization ports 3, using reflecting plate 1 ,+45 ° of polarization ports 2 and -45 ° of polarization ports 3, spoke
Oscillator 6 and coupling aluminium flake 7 are penetrated, radiating doublet 6 uses air microstrip technology, uses this structure as dual polarization platelet-like antenna
Radiating doublet 6 avoids the 6 bring dielectric loss of radiating doublet of circuit board structure, reduces and is situated between using brought by dielectric microstrip
Matter loss improves the radiation efficiency of antenna, and the length and width of reflecting plate 1 is 262mm-286mm, with a thickness of 1.4mm-
1.7mm, material therefor are aluminium alloy plate, the right side that the left end of+45 ° of polarization ports 2 passes through the first feed cable 4 and reflecting plate 1
It is fixedly connected, the left end of -45 ° of polarization ports 3 is fixedly connected by the second feed cable 5 with the right side of reflecting plate 1, the first feed
One end of cable 4 is through reflecting plate 1 and extends to the inside of reflecting plate 1, and the left end of the first feed cable 4 is fixedly connected with spoke
Oscillator 6 is penetrated, tapered and cambered butterfly petal shape is used using the radiating surface of radiating doublet 6, so that feeding point reaches
The electrical length at each top is gradual change, to reach the resonance of each frequency point, since the radiating surface of radiating doublet 6 is using tapered
It is designed with cambered butterfly petal shape, the top equal to the radiating surface of the radiating doublet 6 has connected different smooth transitions
Section, so that, to effectively broaden impedance and bandwidth, realizing the broadband properties of frequency range, spoke along antenna surface current reflection very little
The height for penetrating the radiating surface of oscillator 6 to reflecting plate 1 is 1/4 λ 0, is 105mm-125mm, wherein λ 0 be center frequency point space from
By wavelength, the electrical length of every group of 6 radiating surface of radiating doublet is made of the radiating surface of two 1/4 λ 0, wherein λ 0 is center frequency point
The free wavelength in space, the radiating surface of every group of radiating doublet 6 is all made of tapered and cambered butterfly petal shape, the second feedback
One end of electrical cables 5 runs through reflecting plate 1 and extends to the inside of reflecting plate 1, and the left end of the second feed cable 5 is fixedly connected with spoke
Oscillator 6 is penetrated, the outer surface of radiating doublet 6 is threaded with feed copper sheet 9 by the first screw 8, and the left side at 1 top of reflecting plate is logical
It crosses the second screw 10 and is threaded with coupling aluminium flake 7, it is highly 56mm-72mm that the length of coupling aluminium flake 7, which is 65mm-76mm, thick
Degree is 1.1mm-1.4mm, and material therefor is aluminium sheet.
When work ,+45 ° of polarization ports 2 connect work with one end of the first feed cable 4, the first feed cable 4 it is another
End connect work with radiating doublet 6 across reflecting plate 1, and -45 ° of polarization ports 3 connect work with one end of the second feed cable 5,
The other end of second feed cable 5 passes through reflecting plate 1 and connect work with radiating doublet 6, and reflecting plate 1 is equipped with 6 He of radiating doublet
Aluminium flake 7 is coupled, radiating doublet 6 is fixed on reflecting plate 1 by the first screw 8 and the second screw 10, and radiating doublet 6 uses
Air microstrip technology, coupling aluminium flake 7 is fixed on reflecting plate 1 and connects conducting, so that the net of antenna wireless communication system
In network covering construction, it can be reduced the usage quantity of antenna, save space.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of dual polarization platelet-like antenna, including reflecting plate (1) ,+45 ° of polarization ports (2) and -45 ° of polarization ports (3), institute
The left end for stating+45 ° of polarization port (2) passes through to be fixedly connected on the right side of the first feed cable (4) and reflecting plate (1), and described -45 °
The left end of polarization port (3) on the right side of the second feed cable (5) and reflecting plate (1) by being fixedly connected, it is characterised in that: described
One end of first feed cable (4) is through reflecting plate (1) and extends to the inside of reflecting plate (1), first feed cable
(4) left end is fixedly connected with radiating doublet (6), and one end of second feed cable (5) through reflecting plate (1) and extends to
The left end of the inside of reflecting plate (1), second feed cable (5) is fixedly connected with radiating doublet (6), the radiating doublet
(6) outer surface is threaded with feed copper sheet (9) by the first screw (8), and the left side at the top of the reflecting plate (1) passes through the
Two-screw (10) is threaded with coupling aluminium flake (7).
2. a kind of dual polarization platelet-like antenna according to claim 1, it is characterised in that: every group of radiating doublet (6)
Radiating surface be all made of tapered and cambered butterfly petal shape.
3. a kind of dual polarization platelet-like antenna according to claim 2, it is characterised in that: every group of radiating doublet (6)
The electrical length of radiating surface is made of the radiating surface of two 1/4 λ 0, wherein λ 0 is the free wavelength in space of center frequency point.
4. a kind of dual polarization platelet-like antenna according to claim 3, it is characterised in that: the spoke of the radiating doublet (6)
The height for penetrating face to reflecting plate (1) is 1/4 λ 0, is 105mm-125mm, wherein λ 0 is the free wavelength in space of center frequency point.
5. a kind of dual polarization platelet-like antenna according to claim 1, it is characterised in that: the length of coupling aluminium flake (7)
Degree is 65mm-76mm, is highly 56mm-72mm, with a thickness of 1.1mm-1.4mm, material therefor is aluminium sheet.
6. a kind of dual polarization platelet-like antenna according to claim 4, it is characterised in that: the length of the reflecting plate (1)
It is 262mm-286mm with width, with a thickness of 1.4mm-1.7mm, material therefor is aluminium alloy plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821799522.2U CN208904223U (en) | 2018-11-02 | 2018-11-02 | A kind of dual polarization platelet-like antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821799522.2U CN208904223U (en) | 2018-11-02 | 2018-11-02 | A kind of dual polarization platelet-like antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208904223U true CN208904223U (en) | 2019-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821799522.2U Active CN208904223U (en) | 2018-11-02 | 2018-11-02 | A kind of dual polarization platelet-like antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113937493A (en) * | 2021-11-02 | 2022-01-14 | 苏州东山精密制造股份有限公司 | Low-frequency radiation unit and antenna array |
-
2018
- 2018-11-02 CN CN201821799522.2U patent/CN208904223U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113937493A (en) * | 2021-11-02 | 2022-01-14 | 苏州东山精密制造股份有限公司 | Low-frequency radiation unit and antenna array |
| CN113937493B (en) * | 2021-11-02 | 2024-03-19 | 苏州艾福电子通讯股份有限公司 | Low-frequency radiating element and antenna array |
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