Summary of the invention
For problem above, the present invention proposes the dual polarized antenna of a kind of novel couple feed
And its radiating element.
According to an aspect of the present invention, it is proposed that a kind of radiating element, it is characterised in that bag
Include: square radiation patch;First feed tab and the second feed tab, its be suspended in described just
The lower section of square-shaped radiation paster, described first feed tab is configured to realize+45 ° of polarization, described
Second feed tab is configured to realize-45 ° of polarization;Reflecting plate, it is positioned at described first feed tab
Lower section with described second feed tab;And first cable and the second cable, described first cable
Inner wire through described reflecting plate and be connected to described first feed tab, described second cable
Inner wire through described reflecting plate and be connected to described second feed tab;Wherein, described just
Square-shaped radiation paster is 0.115~0.133 wavelength to the distance of described reflecting plate, described first feedback
The distance of electricity sheet and described second feed tab extremely described reflecting plate is 0.07~0.08 wavelength, described
The distance of the first feed tab and described second feed tab the most described square radiation patch is
0.044~0.051 wavelength.
In one embodiment, above-mentioned radiating element also includes: the 3rd feed tab and the 4th feed
Sheet, it is suspended in the lower section of described square radiation patch, wherein said first feed tab and institute
State the 3rd feed tab and be configured to realize+45 ° of polarization, described second feed tab and described 4th feedback
Electricity sheet is configured to realize-45 ° of polarization;And the 3rd cable and the 4th cable, described 3rd electricity
The inner wire of cable is through described reflecting plate and is connected to described 3rd feed tab, described 4th electricity
The inner wire of cable is through described reflecting plate and is connected to described 4th feed tab;Wherein, described
A length of 0.33~0.38 wavelength of square radiation patch, described first feed tab, described the
Two feed tab, described 3rd feed tab and a length of the 0.111~0.128 of described 4th feed tab
Wavelength, width is 0.055~0.064 wavelength.
Advantageously, the distance of described square radiation patch to described reflecting plate is 0.124 wavelength,
The distance of described first feed tab and described second feed tab extremely described reflecting plate is 0.075 ripple
Long, described first feed tab and the distance of described second feed tab the most described square radiation patch
It it is 0.048 wavelength.
Advantageously, a length of 0.355 wavelength of described square radiation patch, described first feedback
Electricity sheet, described second feed tab, described 3rd feed tab and described 4th feed tab a length of
0.12 wavelength, width is 0.06 wavelength.
In order to realize+45 ° and-45 ° of polarization, advantageously, described first feed tab, described second
Feed tab, described 3rd feed tab and described 4th feed tab are in the same plane, and described
One feed tab and described 3rd feed tab are along one article of diagonal pair of described square radiation patch
Claiming to arrange, described second feed tab and described 4th feed tab are along described square radiation patch
Another diagonal is symmetrical arranged.
In one example, described first cable, described second cable, described 3rd cable and
The inner wire of described 4th cable is respectively connecting to described first feed tab, described second feed
Sheet, described 3rd feed tab and the diagonal intersection point of described 4th feed tab.
Described square radiation patch can be such as sheet metal or cover copper pcb board.Similarly,
Described first feed tab, described second feed tab, described 3rd feed tab and described 4th feed
Arbitrary feed tab in sheet can be such as sheet metal or cover copper pcb board.
According to an aspect of the present invention, it is proposed that a kind of dual polarized antenna, it includes taking up an official post
The array of the radiating element in one embodiment.
The radiating element of various embodiments of the present invention and dual polarized antenna can be effectively reduced spoke
The part penetrating paster to the section distance between reflecting plate and required is less, installs the most relative
Simply.
Detailed description of the invention
It is more fully described the preferred implementation of the disclosure below with reference to accompanying drawings.Although accompanying drawing
In show the preferred implementation of the disclosure, however, it is to be appreciated that can be real in a variety of manners
Show the disclosure and should not limited by embodiments set forth herein.On the contrary, it is provided that these are implemented
Mode is to make the disclosure more thorough and complete, and can be complete by the scope of the present disclosure
Convey to those skilled in the art.
Fig. 1 shows the schematic diagram of radiating element according to an embodiment of the invention.Reference
Fig. 1, exemplary radiating element 10 include square radiation patch 11, the first feed tab 12a,
Second feed tab 12b, the 3rd feed tab 12c, the 4th feed tab 12d, reflecting plate 13, the
One cable 14a, the second cable 14b, the 3rd cable 14c and the 4th cable 14d.
First feed tab 12a, the second feed tab 12b, the 3rd feed tab 12c and the 4th feed
Sheet 12d is suspended in below square radiation patch 11.Wherein, the first feed tab 12a and
Three feed tab 12c are used for realizing+45 ° of polarization, the second feed tab 12b and the 4th feed tab 12d
For realizing-45 ° of polarization.Reflecting plate 13 is positioned at the first feed tab 12a, the second feed tab 12b,
Below 3rd feed tab 12c and the 4th feed tab 12d.Square radiation patch 11 and the
One, second, third and the 4th feed tab 12a, 12b, 12c and 12d can pass through support member
Being fixed to reflecting plate 13, this support member can be made up of electrically non-conductive materials such as such as plastics.
Referring now still to Fig. 1, the inner wire of the first cable 14a is through reflecting plate 13 and is connected to the
One feed tab 12a, is used for realizing feed.Similarly, the inner wire of the second cable 14b passes
Reflecting plate 13 and be connected to the second feed tab 12b, the inner wire of the 3rd cable 14c is through anti-
Penetrating plate 13 and be connected to the 3rd feed tab 12c, the inner wire of the 4th cable 14d is through reflection
Plate 13 and be connected to the 4th feed tab 12d.This first, second, third and fourth cable
14a, 14b, 14c and 14d can be such as coaxial cables, specifically, as shown in Figure 2,
The dielectric layer 122 of coaxial cable is through reflecting plate 13, and outer conductor 123 is positioned at reflecting plate 13 times
Side, inner wire 121 upwardly extends and is connected to feed tab.This first, second, third and fourth
The inner wire of cable 14a, 14b, 14c and 14d can be connected to by the way of such as welding
First, second, third and fourth feed tab 12a, 12b, 12c and 12d.May be appreciated
It is, the inner wire of this first, second, third and fourth cable 14a, 14b, 14c and 14d
Can also by other any suitable by the way of be connected to first, second, third and fourth feed
Sheet 12a, 12b, 12c and 12d.
In order to realize+45 ° and-45 ° of polarised directions, advantageously, this first, second, third He
4th feed tab 12a, 12b, 12c and 12d are in the same plane, wherein, and the first feed
Sheet 12a and the 3rd feed tab 12c are along one article of diagonal symmetry of square radiation patch 11
Arranging, the second feed tab 12b and the 4th feed tab 12d are along square radiation patch 11
Another diagonal is symmetrical arranged, as shown in Figure 3.
Distance d of square radiation patch 11 to reflecting plate 131Determine based on bandwidth requirements,
Such as, distance d1It is 0.115~0.133 wavelength, advantageously, distance d1It it is 0.124 wavelength.
First, second, third and fourth feed tab 12a, 12b, 12c and 12d are to reflecting plate 13
Distance d2For example, 0.07~0.08 wavelength, advantageously, distance d2It it is 0.075 wavelength.The
One, second, third and the 4th feed tab 12a, 12b, 12c and 12d are to square radiation patch
Distance d of sheet 113For example, 0.044~0.051 wavelength, advantageously, distance d3It is 0.048
Wavelength.
The length of side of square radiation patch 11 is such as 0.33~0.38 wavelength, advantageously, the length of side
It it is 0.355 wavelength.First, second, third and fourth feed tab 12a, 12b, 12c and 12d
Can be such as rectangle, its a length of such as 0.111~0.128 wavelength, width be such as
0.055~0.064 wavelength, advantageously, a length of 0.12 wavelength, width is 0.06 wavelength.
Normally, first, second, third and fourth cable 14a, 14b, 14c and 14d
Inner wire and first, second, third and fourth feed tab 12a, 12b, 12c and the company of 12d
Contact (that is, distributing point) is the cornerwise intersection point of rectangle feed tab.It is understood that
In order to port Impedance coupling is better achieved, distributing point can also be arranged on the attached of diagonal intersection point
Closely.
Square radiation patch 11 can be sheet metal, and such as, copper, aluminum, aluminum are tin plating,
Or can also be the pcb board covering copper.Similarly, first, second, third and fourth feedback
Electricity sheet 12a, 12b, 12c and 12d can be sheet metals, and such as, copper, aluminum, aluminum are tin plating,
Or can also be the pcb board covering copper.
It should be noted that above embodiment is to include as a example by four feed tab by radiating element
The description carried out, it is to be understood that in other embodiments, radiating element can also only wrap
Including two feed tab, one of them feed tab is used for realizing+45 ° of polarization, and another feed tab is used
In realizing-45 ° of polarization.
Multiple radiating elements in the above embodiment of the present invention are arranged with array way, can be with structure
Become double polarization array antenna.
It will be appreciated to those of skill in the art that above-mentioned state is used only for example, not
For limiting the range of application of the present invention.Those skilled in the art can for every kind specific should
With, in the way of flexible, realize described function, but, this realize decision-making and should not explain
For deviating from protection scope of the present invention.