A kind of integration element antenna
Technical field
The present invention relates to wireless communication field more particularly to a kind of radio antennas.
Background technology
± 45 ° of dual polarization directed radiations of 1.7GHz-2.7GHz frequency ranges may be implemented in traditional LTE radio antennas, but
Its only 65 ° ± 5 ° of band inner horizontal pattern beamwidth.In order to meet 2G, 3G, 4G wireless antenna meet integrated design and
The requirement of the wide angle covering of signal, antenna oscillator horizontal radiation pattern beam angle are needed in F-band(1880-1920MHz), A frequency
Section(2010-2025MHz)And D frequency ranges(2555-2635MHz)Respectively reach 100 °, 90 °, 65 °.Meanwhile the level of D frequency ranges
Face pattern beam roll-offs 9dB or more to be reached at ± 60 °.Traditional LTE oscillators obviously cannot be satisfied the side of such harshness
It is required to figure wave beam.
Invention content
The technical problem to be solved by the present invention is in view of the above shortcomings of the prior art, and direction can be met by providing one kind
The integration that figure wave beam requires divides shape metal oscillator.
In order to solve the above technical problems, the technical solution adopted by the present invention is:
A kind of integration element antenna, including director, metal radiation face, metal balun support construction, coaxial feed
And catoptric arrangement, the metal radiation face setting is in the metal balun support construction upper end, the catoptric arrangement setting
In the metal balun support construction lower end, the director, the coaxial feed are set in metal radiation face upper end
Structure is electrically connected across the catoptric arrangement with the metal radiation face, it is characterised in that:The metal radiation face is by four gold
Belong to piece to constitute, circumferencial direction of four sheet metals along the metal balun support construction center is evenly arranged;In the metal
On piece setting there are one round hole and with two square holes, two square holes are symmetrically distributed in round hole center and metal balun
The both sides of support construction central junction line.
The director is positioned over by holder support right over the metal radiation face.
The director is cross-shaped directors, the cross-shaped directors diagonal line and the metal radiation face diagonal
It is parallel.
The balun support construction by positioned at bottom metal base and form with metal tube on metal base;
Wherein metal tube includes two couple being diagonally distributed, each pair of two.
The metal tube is half curved metal pipe.
The coaxial feed is made of external conductor and inner conductor;The coaxial feed passes through the reflection
Structure is welded along the balun support construction and metal radiation face center bonding pads.
The catoptric arrangement is reflectingly that this is made of with side bottom edge reflectingly reflectingly reflectingly.
Compared with prior art, the present invention has the following technical effect that:
The present invention calculates radiating surface current distribution using metal radiation surface current fractal technology, respectively in metal radiation face far from gold
Belong to and open up round hole on the inside of the angle at balun support construction center, in metal radiation face close to balun and its support construction center
Angle two sides on the inside of open up two square holes, and two square hole extending directions are parallel with corresponding side.By opening up
Round hole and square hole, create electric current it is short open circuit point, change antenna oscillator Surface current distribution, realize F-band, A frequency ranges direction
Figure beam angle is widened.
The current distribution in present invention combination antenna oscillator metal radiation face, devises metallic reflection structure reflectingly.This is anti-
Penetrate include side reflectingly with bottom edge reflectingly, form the electromagnetism between metal radiation face reflectingly using both sides and bottom edge
Coupling is realized that the wave beam of F, A frequency range is widened and is narrowed with the wave beam of D frequency ranges respectively.
Director of the present invention is loaded using cross-shaped directors, and two groups are utilized under conditions of not deteriorating antenna oscillator standing wave
Metal cross orthohormbic structure enhances the electric current in metal radiation face, and it is wide in the wave beam of D frequency ranges to regulate and control antenna oscillator for structure capacitive load
Degree, and improve D frequency range directional diagram roll-off characteristics.
Description of the drawings
Fig. 1 is the structural schematic diagram that a kind of integrated cross load of the present invention divides shape metal element antenna;
Fig. 2 is that a kind of integrated cross load of the present invention divides shape metal element antenna 1880MHz horizontal radiation patterns;
Fig. 3 is that a kind of integrated cross load of the present invention divides shape metal element antenna 2010MHz horizontal radiation patterns;
Fig. 4 is that a kind of integrated cross load of the present invention divides shape metal element antenna 2555MHz horizontal radiation patterns;
1- directors;2- metal radiations face;21- fractal shapes;211- round holes;212- square holes;3- metal baluns support
Structure;4- is reflectingly;The sides 41- are reflectingly;The bottom edges 42- are reflectingly;5 coaxial feeds.
Specific implementation mode
Below in conjunction with the accompanying drawings, it elaborates to the present invention:
As shown in Figure 1, it is a kind of integration element antenna, including director 1, metal radiation face 2, metal balun support construction 3,
Coaxial feed 5 and catoptric arrangement.Metal radiation face 2 is fixed on 3 upper end of metal balun support construction, and catoptric arrangement is solid
It is scheduled on 3 lower end of metal balun support construction, director 1 is positioned over by holder support right over metal radiation face 2.
Coaxial feed 5 is made of external conductor and inner conductor;Coaxial feed 5 passes through catoptric arrangement, edge bar
Human relations and support construction 3 are welded with metal radiation face center bonding pads.
Metal radiation face 2 is made of four sheet metals, circumference of four sheet metals along metal balun support construction center
Direction is evenly arranged;It is machined with fractal shape 21 on sheet metal, wherein fractal shape 21 includes a round hole 211 and with two
A square hole 212, two square holes 212 are symmetrically distributed in round hole center and metal balun support construction central junction line
Both sides.
The main body squarely of sheet metal.Round hole 211 is opened in the interior of the angle far from metal balun support construction center
Side, two square holes 212 are opened in the inside on two sides close to the angle for belonging to balun support construction center, and square hole 212
Extending direction it is parallel with corresponding side.
Director 1 is cross-shaped directors, and cross-shaped directors diagonal line is parallel with metal radiation face diagonal.
Balun support construction 3 by positioned at bottom metal base and form with metal tube on metal base;Its
Middle metal tube includes two couple being diagonally distributed, each pair of two.Metal tube is half curved metal pipe.
In the present embodiment, catoptric arrangement is designed as reflectingly 4, this reflectingly 4 by side reflectingly 41 and bottom edge reflect
Ground 42 constitute, side reflectingly 41 be located at bottom edge reflectingly 42 two sides.
Fig. 2-Fig. 4 is the simulation result diagram in inventive antenna a period of time, and simulation calculation shows:The metal antenna oscillator can be
F-band(1880-1920MHz), A frequency ranges(2010-2025MHz)And D frequency ranges(2555-2635MHz)Horizontal radiation pattern
Beam angle respectively reaches 99.9 °, 89.2 °, 63.2 °, while roll-offing and reaching at horizontal radiation pattern wave beam ± 60 ° of D frequency ranges
10.7dB fully meets design requirement.