CN105990640A - Communication antenna, antenna system and communication device - Google Patents
Communication antenna, antenna system and communication device Download PDFInfo
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- CN105990640A CN105990640A CN201510051983.6A CN201510051983A CN105990640A CN 105990640 A CN105990640 A CN 105990640A CN 201510051983 A CN201510051983 A CN 201510051983A CN 105990640 A CN105990640 A CN 105990640A
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- 230000010287 polarization Effects 0.000 claims description 11
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Abstract
The present invention relates to a communication antenna. The communication antenna comprises a first radiator and a second radiator. The first radiator includes a first substrate and a first radiation fin arranged on the first substrate; the second radiator includes a second substrate and a second radiation fin arranged on the second substrate; the first radiator has a first feed portion and a second feed portion; the second radiator has a third feed portion and a fourth feed portion; and the first radiator and the second radiator are arranged at the same installation surface, and the radiation surfaces of the first radiation fin and the second radiation fin are planes.
Description
Technical field
The present invention relates to a kind of antenna, especially relate to a kind of communication antenna, and use the sky of this communication antenna
Wire system and communication equipment.
Background technology
Antenna is the necessary component in wireless communication system, is used for launching and receiving electromagnetic wave.Antenna should
For systems such as broadcast and TV, point-to-point radio communication, radar and space probations.Along with radio communication
Developing rapidly of technology, the field involved by antenna technology is more and more extensive.In many special applications, right
More and more higher in the requirement of antenna performance.In modern communications, along with the raising of communication system integrated level,
Require that the antenna used has the spies such as high-gain, broadband or multiband, circular polarisation, miniaturization, wide covering
Point.Around additionally, due to, under large-area metal environment, wide-angle axle ratio and the directional diagram out-of-roundness of antenna are the best,
Thus wish that antenna has axle ratio and the directional diagram performance of improvement.
In prior art, the common scheme realizing double frequency/multifrequency antenna includes: to add on microstrip antenna
The method carrying grounding probe or fluting changes the CURRENT DISTRIBUTION of higher mode to realize double frequency；Use multilamellar micro-strip
Paster layered manner (each paster is operated under an independent frequency) realizes double frequency/multifrequency.
There is structure complexity, the problem of complex manufacturing technology the most to some extent in above prior art.Meanwhile,
Along with the raising of communication system integrated level, these prior aries gradually can not meet communication antenna miniaturization and
Conformalization design requirement.Additionally, generally deposit under the antenna scheme of prior art large-area metal environment around
Axle ratio and the problem of directional diagram poor performance at antenna.
Summary of the invention
The technical problem to be solved is to provide a kind of communication antenna and respective antenna system sets with communicating
Standby, it is provided in particular in a kind of miniaturization, two-band, the communication antenna of circular polarisation and includes the antenna of this communication antenna
System and communication equipment.
For solving above-mentioned technical problem, the invention provides a kind of communication antenna, including the first radiant body and the
Two radiant bodies, described first radiant body includes first substrate and arranges the first radiation fin on the first substrate,
Described second radiant body includes second substrate and the second radiation fin being arranged on second substrate, described first spoke
Beam has the first current feed department and the second current feed department, and described second radiant body has the 3rd current feed department and the 4th feedback
Electricity portion, described first radiant body and the second radiant body are arranged on same installation surface, and described first spoke
The radiating surface penetrating sheet and the second radiation fin is plane.
Preferably, described first radiant body and described second radiant body realize two-band linear polarization respectively.
Preferably, described first radiant body and described second radiant body are operated in identical two-band.
Preferably, described first radiant body realizes different linear polarization directions from described second radiant body.
Preferably, described installation surface is plane, and described first radiant body and the second radiant body are with described
Installation surface is conformal.
Preferably, described first radiation fin and described second radiation fin are the rectangle with corner cut.
Preferably, described first radiation fin has two described corner cuts, and two described corner cuts are positioned at described
On first diagonal of one radiation fin, described second radiation fin has two described corner cuts, and cuts described in two
Angle is positioned on the second diagonal of described second radiation fin.
Preferably, the position of described first radiation fin and described second radiation fin is put as making described first
Diagonal is at an angle with described second diagonal.
Preferably, the position of described first radiation fin and described second radiation fin is put as making described first
Diagonal is vertical with described second diagonal.
Preferably, described first, second, third and the 4th current feed department be coaxial feed portion.
Preferably, described first current feed department and the second current feed department are arranged on the first symmetry of described first radiation fin
On axle, described 3rd current feed department and the 4th current feed department are arranged on the second axis of symmetry of described second radiation fin,
Described first axis of symmetry is different with described second axis of symmetry direction.
Preferably, described first axis of symmetry and described second axis of symmetry are orthogonal.
Preferably, described first substrate is made up of dielectric substrate, and described second substrate is by micro-doped with conduction
The described dielectric substrate of structure is made.
Preferably, described first radiation fin is different with the size of described second radiation fin, and larger-size spoke
The dielectric constant of the counterpart substrate penetrating sheet is less.
Preferably, described first radiation fin and described second radiation fin equivalently-sized, described first substrate and
The dielectric constant of described second substrate is identical.
Preferably, described first substrate and described second substrate are same substrates.
Preferably, described first radiation fin and described second radiation fin are supported on a mounting surface by supporting construction
Side, does not contacts with described installation surface, and described first substrate and described second substrate are described first radiation fins
And the air between described second radiation fin and described installation surface.
Preferably, described communication antenna also includes that cavity, described first radiant body and described second radiant body are put
Put in described cavity.
Preferably, described cavity is circular or square metal cavity.
Preferably, it is provided with packing material in the space between described cavity and described first, second radiant body.
Preferably, described communication antenna also include frequency select antenna house, its be placed in described communication antenna receive and/or
On the electromagnetic wave propagation direction launched.
Preferably, described frequency selects antenna house and described communication antenna conformal.
In another embodiment, the invention provides a kind of antenna system, including: feed port；Power splitter,
First end of described power splitter is connected to described feed port；Communication antenna as described above, Qi Zhongsuo
The second end stating power splitter is connected to the first current feed department of described communication antenna via the first feeder line, described
3rd end of power splitter is connected to the second current feed department of described communication antenna, described merit via the second feeder line
The 4th end dividing device is connected to the 3rd current feed department of described communication antenna via the 3rd feeder line, and described merit is divided
5th end of device is connected to the 4th current feed department of described communication antenna via the 4th feeder line, and wherein said
One feeder line, described second feeder line, described 3rd feeder line, described 4th feeder line are each other
Between have phase shift.
Preferably, described second feeder line includes that the phase shifter is to introduce relative to the first feeder line 180 °
Phase shift, described 3rd feeder line includes that the phase shifter is to introduce relative to the phase of the first feeder line 90 °
Moving, described 4th feeder line includes that the phase shifter is to introduce the phase shift relative to the first feeder line 270 °.
Preferably, the length of described second feeder line and described first feeder line differs 1/2 wavelength in fact
Existing 180 ° of phase shifts, the length of described 3rd feeder line and described first feeder line differs 1/4 wavelength and comes real
Existing 90 ° of phase shifts, the length of described 4th feeder line and described first feeder line differs 3/4 wavelength and comes real
Existing 270 ° of phase shifts.
In a further embodiment, the present invention provides a kind of communication equipment, as above including claim
Communication antenna, and/or antenna system as above.
Due to the fact that the above technical scheme of employing, be allowed to compared with prior art at least have following notable
Advantage:
The communication antenna of the present invention is made up of two radiant bodies being arranged on same installation surface, such plane
Structure has the advantage that section is low, reduces the demand for setting height(from bottom).
The present invention by radiation fin corner cut so that each radiant body realizes two-band linear polarization.Enter one
Step, by arranging the relative position of two radiant bodies, and (makes two in a radiation fin by four feedback schemes
Between individual current feed department, difference is 180 °, and adhere to separately between two current feed departments of two radiation fins difference be 90 ° or
270 °), two two-band line polarization waves the most mutually orthogonal can be obtained, and then synthesis obtains two-band circle
Polarized wave.This flat plane antenna of the present invention reduce technique make complexity, simplify design requirement and
Realize process.
The present invention, by encouraging to each radiant body feeding two-way, improves the wide-angle axle ratio of antenna, and carries
High directional diagram out-of-roundness.
Accompanying drawing explanation
For the above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing to this
Bright detailed description of the invention elaborates, wherein:
Fig. 1 illustrates the plane graph of example communication antenna according to embodiments of the present invention.
Fig. 2 illustrates the axonometric chart of antenna radiator according to embodiments of the present invention.
Fig. 3 A illustrates the plane graph of example communication antenna according to embodiments of the present invention, and it is with optionally
Cavity and frequency select antenna house.
Fig. 3 B illustrates the plane graph of the optional cavity of another kind according to embodiments of the present invention.
Fig. 3 C illustrates dividing of the communication antenna with exemplary cavity and antenna house according to embodiments of the present invention
Solve schematic diagram.
Fig. 4 illustrates the schematic diagram of antenna system according to embodiments of the present invention.
Fig. 5 A illustrates the voltage standing wave ratio curve chart of communication antenna according to embodiments of the present invention.
Fig. 5 B illustrates the voltage standing wave ratio curve chart of communication antenna according to embodiments of the present invention.
Fig. 6 illustrates the gain curve figure of the communication antenna of the embodiment of the present invention.
Fig. 7 illustrates that the axle of the communication antenna of the embodiment of the present invention compares curve chart.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the invention will be further described, elaborates more in the following description
Many details so that fully understanding the present invention, but the present invention obviously can with multiple be different from this describe other
Mode is implemented, those skilled in the art can in the case of intension of the present invention according to practical situations
Make similar popularization, deduce, the most should be with content constraints protection scope of the present invention of this specific embodiment.
Fig. 1 illustrates the plan view (top view) of example communication antenna according to embodiments of the present invention. ginseng
Examining shown in Fig. 1, the communication antenna 100 of the present embodiment is made up of the first radiant body 101 and the second radiant body 102,
Wherein the first radiant body 101 includes first substrate 11 and the first radiation fin 12, and the second radiant body 102 includes second
Substrate 13 and the second radiation fin 14.First substrate 11 and second substrate 13 can be made up of dielectric substrate.First
Radiation fin 12 and the second radiation fin 14 are made of an electrically conducting material, and such as, are made of metal.Radiation fin can be patch
Sheet form, it is also possible to be the coating through chemical wet etching.The assembled unit of each radiation fin and substrate constitutes a reception
With transmission path.First radiation fin has the first current feed department 15a and the second current feed department 15b, and the second radiation fin has
3rd current feed department 16a and the 4th current feed department 16b.Current feed department 15a, 15b, 16a, 16b can be used for inputting pending
The signal sent, or the signal that output has received.Preferably, current feed department 15a, 15b, 16a, 16b can be same
Axle current feed department.
On shape designs, first substrate 11 and second substrate 13 are preferably rectangular, it is of course also possible to be it
Its shape.First radiation fin 12 and the second radiation fin 14 are preferably the rectangle with corner cut as shown in Figure 1 (i.e.,
Certain of rectangular radiation patch/some angle or portion of material are excised).Of course it is to be understood that the first radiation fin
12 and second radiation fin 14 can also is that other shapes.But, the first radiation fin 12 and the second radiation fin 14 are excellent
Elect shape identical (not considering corner cut), further, the size of the first radiation fin 12 and the second radiation fin 14 as
The most equivalently-sized.When two radiation fins equivalently-sized, the dielectric constant of two substrates is also identical,
Now, first substrate 11 and second substrate 13 can be same substrate.On the other hand, the first radiation fin 12
Can be different with the size of the second radiation fin 14, now, Jie of the counterpart substrate of larger-size radiation fin
Electric constant should be less, to guarantee that the first radiant body 11 is identical with the working frequency range of the second radiant body 12.As another
Individual optional embodiment, first substrate 11 and second substrate 12 can not be the electrolyte of entity, but by air
Serve as electrolyte, specifically, supporting construction can be used the first radiation fin 12 and the second radiation fin 14 to be supported on
Install on surface so that it is do not contact with installation surface, but by the air between radiation fin and installation surface as electricity
Medium.
First radiation fin 12 has corner cut 12a at the first diagonal A two ends and 12b, similar, the second spoke
Penetrate sheet 14 and there is corner cut 14a at the second diagonal B two ends and 14b.Corner cut can have various form, as greatly
Little, position, excision angle (that is, the angle at incisxal edge and radiation fin edge) etc..In a preferred embodiment, this reality
The communication antenna executing example is configured to have double frequency transmission and receiving ability.Specifically, by controlling the several of corner cut
What form (size of corner cut, position, excision angle etc.), makes the first radiation fin 12 and the second radiation fin 14
Each can realize two-band linear polarization, and the frequency range position of two-band can be controlled.In the embodiment shown in fig. 1,
First radiation fin 12 and the second radiation fin 14 are rectangular radiation patch, two on its one diagonal of each comfortable excision
Behind diagonal angle hexagonal.Preferably, each corner cut 12a, 12b, 14a and 14b angle at 35 degree to 55
Between choose.It is highly preferred that the angle of each corner cut 12a, 12b, 14a and 14b is 45 degree.May be appreciated
It is that corner cut can also be other angle.Preferably, the shape of all corner cuts 12a, 12b, 14a and 14b is identical.
The incisxal edge of " angle of corner cut " referred to corner cut of this statement and the angle of radiation fin rectangular edges." the angle of corner cut
Degree " this statement referred to be notched incisxal edge partly and the angle (taking acute angle) of radiation fin rectangular edges, to scheme
As a example by 1, cut part is right angled triangle, and the hypotenuse of this right angled triangle is incisxal edge, hypotenuse and this right angle
The angle of leg is i.e. the angle of corner cut.
As it is shown in figure 1, current feed department 15a, 15b of the first radiation fin 12 are arranged on the vertical of the first radiation fin 12
On axis of symmetry.Current feed department 16a, 16b of second radiation fin 14 is arranged on the horizontal symmetry axis of the second radiation fin 14
On.Should be noted that shown situation is only the one of multiple possible configuration.For example, it is also possible to be the first radiation fin 12
Current feed department 25a, 25b are arranged in horizontal symmetry axis, and current feed department 26a, 26b of the second radiation fin 14 are arranged on
In vertical axis of symmetry.But, generally should get rid of current feed department 15a, 15b and 16a, 16b is arranged at radiation fin
The situation of geometric center.
As it is shown in figure 1, the first radiant body 101 and the second radiant body 102 are arranged on same installation surface.?
In the context of the application, " on same installation surface " is intended to two radiant bodies feelings on same geometric surface
Condition.But, two radiant bodies should be got rid of and put the situation into lamination, this situation causes the general thickness of antenna to increase,
Against the design requirement of miniaturization under some applied environment.
Fig. 2 shows the axonometric chart of the antenna radiator according to this embodiment, and it can corresponding first radiant body 101
With any one in the second radiant body 102, as it can be seen, the radiation fin 201 being arranged on base material 202 has base
The radiating surface of plane in basis.
When applying excitation by current feed department, each work of the first radiant body 101 and the second radiant body 102
For linearly polarized radiation unit.According to embodiments of the invention, in order to realize circular polarisation communication antenna, by the first radiant body
101 put into the first diagonal A and the second radiant body 102 making the first radiant body 101 with the second radiant body 102
The second diagonal B at an angle.Preferably, the first diagonal A and the second diagonal B is mutually perpendicular to.Due to
First diagonal A and the second diagonal B is angled, the first radiant body 101 and line of the second radiant body 102
Polarized wave can form circular polarisation or elliptical polarized radiation signal in the case of having phase shift each other.Especially work as corner cut
When diagonal A with B at place is vertical, the linearly polarized wave that the first radiant body 101 and the second radiant body 102 send
Orthogonal, such as, the first radiant body 101 sends horizontal polarized wave, and the second radiant body 102 sends vertical polarization
Ripple, vice versa.Further, pass through feeding network so that be fed to the first radiant body 101 pumping signal and
Being fed between the pumping signal of the second radiant body 102 have 90 ° or the phase shift of 270 °, this makes the first radiant body
101 and second the linearly polarized wave phase with one another that sends of radiant body 102 differ 90 °.More specifically, such as, to
The current feed department 15a of the first radiation fin 101 provides the pumping signal of 0 ° of phase shift, to the feed of the second radiation fin 102
Portion 16a provides the pumping signal of 90 ° of phase shifts；180 ° of phase shifts are provided to the current feed department 15b of the first radiation fin 101
Pumping signal, to the second radiation fin 102 current feed department 16b provide 270 ° of phase shifts pumping signal.It is provided
The pumping signal of his phase place is also feasible, as long as making to differ between two current feed departments in a radiation fin 180
°, and adhere to differ between two current feed departments of two radiation fins 90 ° (or 270 °) separately.Now, first
The amplitude that radiant body 101 and the second radiant body 102 send is equal, phase 90 °, the most mutually orthogonal
Line polarization wave synthesize circularly polarised wave.
In the example embodiment of Fig. 1, with the first diagonal A and the second side of putting orthogonal for diagonal B
The line polarization wave that formula achieves the first radiant body 101 and the second radiant body 102 is orthogonal.But, this area skill
Art personnel, it is understood that depend on the concrete geometry of radiation fin 12 and 14, can take different pendulum
Put mode, as long as the first radiant body 101 and the second radiant body 102 can send the line pole of orthogonal space or nearly orthogonal
Change ripple.
First substrate 11 can be made up of identical dielectric substance with second substrate 13.In further embodiment
In, first substrate 11 and second substrate 13 can be made up of different dielectric substances.Such as, first substrate 11
Can be made up of dielectric substrate, second substrate 13 can be by doping conductive micro structures (such as, metal micro structure)
Same dielectric substrate is made.The dielectric property of the doping scalable second substrate 13 of conductive micro structures.
Fig. 3 A illustrates the plane graph of example communication antenna 300A according to embodiments of the present invention, and it is with can
Circular cavity 310a and the optional frequency of choosing select antenna house 320a.As shown in Figure 3A, can be by as shown in Figure 1
Communication antenna 100 be placed in cavity 310a.The effect of cavity 310a includes but not limited to: make antenna exempt from
It is affected by the surrounding environment the impact with human users.The material of cavity 310a is not restricted, usually metal,
But also can be the nonmetallic materials being suitable for carrying out demand.The wall of cavity 310a generally and antenna radiator not in contact with.
Alternatively, the packing material of such as foam can be placed in cavity 310a to fill communication antenna and chamber
Space between body 310a, prevents communication antenna air pressure in use unstable, and meanwhile, packing material also functions to
Preferably damping and supporting role.Further, frequency can be provided above at communication antenna 100 and select antenna house 320a.
Frequency selects antenna house 320a to be arranged on the electromagnetic wave propagation direction that antenna receives/launches.Frequency selects the antenna house can
It is set to conformal with communication antenna 100, fully to meet the requirement of miniaturization.Using cavity 310a
In the case of, frequency selects antenna house 320a to can be set to cover the opening of cavity 310a.
Shape for cavity can not be restricted, but selects accordingly according to applied environment.Such as, except circle
Shape cavity, it is also possible to use square cavity, and the cavity of other geometries.Fig. 3 B illustrates according to the present invention
The plane graph of the example communication antenna 300B of embodiment, it is with optional square cavity 310b and optional
Frequency select antenna house 320b.
Fig. 3 C illustrates dividing of the communication antenna with exemplary cavity and antenna house according to embodiments of the present invention
Solve schematic diagram.Cavity 310 in Fig. 3 C can the cavity 310a of respective figure 3A, or the cavity of accompanying drawing 3B
310b, or the cavity of other geometries.Frequency in Fig. 3 C selects the antenna house 320 can the frequency of respective figure 3A
Select antenna house 320a, or the frequency of accompanying drawing 3B selects antenna house 320b, or the frequency of other geometries selects antenna house.
Communication antenna 100 is placed in cavity 310, and frequency selects antenna house 320 to be arranged at the electromagnetic wave that antenna receives/launches
The direction of propagation on, and preferably, cover the opening of cavity 310.
Fig. 4 illustrates the schematic diagram of antenna system according to embodiments of the present invention.Antenna system bag shown in Fig. 4
Include the feed port 410 of front end, one point of four power splitter 420, the first feeder line 430a, the second feed line
Road 430b, the 3rd feed line 430c, the 4th feed line 430d, and antenna 440, it includes such as Fig. 1
Shown communication antenna, and the installation of necessity and supporting structure.Feed port 410, one point of four power splitter
420, feeder line 430a-430d constitute the feeding network of antenna system, wherein the first feeder line 430a
Be respectively connecting to the second feeder line 430b the communication antenna shown in Fig. 1 the first radiant body 101 two
Individual current feed department 15a and 15b, the 3rd feeder line 430c and the 4th feeder line 430d are respectively connecting to figure
Two current feed department 16a and 16b of the second radiant body 102 of the communication antenna shown in 1.Such as, power splitter
First end of 420 is connected to feed port 410, and the second end of power splitter 420 is via the first feeder line 430a
Being connected to the first current feed department 15a of the first radiant body 101, the 3rd end of power splitter 420 is via the second feed
Circuit 430b is connected to the second current feed department 15b of the first radiant body 101, the 4th end of power splitter 420 via
3rd feeder line 430c is connected to the 3rd current feed department 16a of the second radiant body 102, the of power splitter 420
Five ends are connected to the 4th current feed department 16b of the second radiant body 102 via the 4th feeder line 430d.
When carrying out launching work, a road pumping signal enters the first end of power splitter 420 from feed port 410
(now it is input), is divided into four road signals, wherein first via signal and the second road letter through power splitter 420
Number being supplied to the first radiant body 101 of communication antenna 100, the 3rd road and the 4th road signal are supplied to antenna 100
Second radiant body 102.Specifically, first via signal is through the second end (now it is outfan) and the first feed
Circuit 430a is supplied to the first current feed department 15a, the second road signal through the 3rd end (now it is outfan) and
Second feeder line 430b is supplied to the second current feed department 15b, and through the 4th end, (now it is defeated to the 3rd road signal
Go out end) and the 3rd feeder line 430c be supplied to the 3rd current feed department 16a, the 4th road signal is through the 5th end (this
Shi Qiwei outfan) and the 4th feeder line 430d be supplied to the 4th current feed department 16b.When being received work,
The signal received by the first radiant body 101 is presented through first from the first current feed department 15a and the second current feed department 15b respectively
Electric line 430a and the second feeder line 430b are transferred to second end (now it is input) of power splitter 420
With the 3rd end (now it is input), the second radiant body 102 signal received is respectively from the 3rd current feed department
16a and the second current feed department 16b is transferred to power splitter through the 3rd feeder line 430c and the 4th feeder line 430d
4th end (now it is input) of 420 and the 5th end (now it is input).Four tunnels receive signal warp
Power splitter 420 is combined into a signal, then exports to feed port 410 from the first end (now it is outfan),
By follow-up reception processing of circuit.
In the antenna system shown in Fig. 4, the first feeder line 430a, the second feeder line 430b,
It is different that three feeder line 430c, the 4th feeder line 430d are arranged to phase with one another, specifically, logical
Cross make the second feeder line 430b (current feed department 15b), the 3rd feeder line 430c (current feed department 16a),
The pumping signal of the 4th feeder line 430d (current feed department 16b) and the first feeder line 430a (current feed department
The phase contrast of pumping signal 15a) is respectively 180 °, 90 °, 270 °, thus realizes the circular polarisation of antenna
Mode of operation.Phase contrast can be introduced by the corresponding phase shifter.(not shown) in another embodiment,
1/2 wavelength can be differed by the length making the second feeder line 430b and the first feeder line 430a to realize
180 ° of phase shifts, similarly, by making the 3rd feeder line 430c and the length phase of the first feeder line 430a
Differ from 1/4 wavelength and realize 90 ° of phase shifts, by making the 4th feeder line 430d and the first feeder line 430a
Length differ 3/4 wavelength and realize 270 ° of phase shifts.Additionally, as example, power splitter 420 can use micro-strip
Line merit divides the power splitter of mode, to save space and effectively to alleviate the weight of system.Further, power splitter is permissible
Remove isolation resistance therein.
Fig. 5 A illustrates the radiation voltage standing-wave ratio curve chart of communication antenna 100 according to embodiments of the present invention,
Wherein transverse axis is frequency, and the longitudinal axis is voltage standing wave ratio (VSWR) real part.Voltage standing wave ratio as shown in Figure 5A
Show that communication antenna 100 (or one of them radiant body 101 or 102) as described in Figure 1 is receiving a road
Can realize the radiation of linear polarization two-band in the case of pumping signal, it has good voltage in two frequency ranges
Standing-wave ratio.
Fig. 5 B shows the reception voltage standing wave ratio curve chart of antenna system according to an embodiment of the invention, wherein
Transverse axis is frequency, and the longitudinal axis is voltage standing wave ratio (VSWR) real part.Voltage standing wave ratio shown in Fig. 5 B shows
The signal that the communication antenna 100 (including two antenna radiators) of antenna system as shown in Figure 4 receives is through merit
At the signal of feed port 410 output after dividing device 420 to converge, it has good electricity on whole working frequency range
Pressure standing-wave ratio.
Fig. 6 shows the gain curve figure of antenna system according to an embodiment of the invention, and wherein transverse axis is pitching
Angle (is spent), and the longitudinal axis is far gain, and it achieves good gain in ± 50 ° of pitch range.
Fig. 7 show the axle of antenna system according to an embodiment of the invention than curve chart, wherein transverse axis is orientation
Angle (is spent), and the longitudinal axis is far field axle ratio.Can be seen that the antenna system of the embodiment of the present invention can be in ± 50 ° of orientation
In angle range, it is achieved axle ratio, less than or equal to 5, has reached good circular polarisation performance.
The circular polarisation communication antenna of the above embodiment of the present invention and/or antenna system can be combined in communication equipment.
Section is low, lightweight, volume is little, it is conformal to be prone to and batch raw owing to having for the communication antenna of the present invention
Produce advantage, can be widely applied to measure and communication every field.The embodiment of the present invention realize circular polarisation
The communication antenna range of application of energy is more extensive, can apply to the field such as mobile communication, satellite navigation.
Although the present invention describes with reference to current specific embodiment, but common skill in the art
Art personnel are it should be appreciated that above embodiment is intended merely to the present invention is described, without departing from present invention essence
Change or the replacement of various equivalence also can be made, therefore, as long as at the connotation of the present invention in the case of god
In the range of change, the modification of above-described embodiment all will be fallen in the range of following claims.
Claims (26)
1. a communication antenna, including the first radiant body and the second radiant body, described first radiant body includes
First substrate and the first radiation fin on the first substrate is set, described second radiant body include second substrate and
The second radiation fin being arranged on second substrate, described first radiant body has the first current feed department and the second feed
Portion, described second radiant body has the 3rd current feed department and the 4th current feed department, described first radiant body and the second spoke
Beam is arranged on same installation surface, and the radiating surface of described first radiation fin and the second radiation fin is
Plane.
2. communication antenna as claimed in claim 1, it is characterised in that described first radiant body and described
Second radiant body realizes two-band linear polarization respectively.
3. communication antenna as claimed in claim 2, it is characterised in that described first radiant body and described
Second radiant body is operated in identical two-band.
4. communication antenna as claimed in claim 2, it is characterised in that described first radiant body is with described
Second radiant body realizes different linear polarization directions.
5. communication antenna as claimed in claim 1, it is characterised in that described installation surface is plane,
And described first radiant body and the second radiant body are conformal with described installation surface.
6. communication antenna as claimed in claim 1, it is characterised in that described first radiation fin and described
Second radiation fin is the rectangle with corner cut.
7. communication antenna as claimed in claim 6, it is characterised in that described first radiation fin has two
Individual described corner cut, and two described corner cuts are positioned on the first diagonal of described first radiation fin, described second
Radiation fin has two described corner cuts, and two described corner cuts are positioned at the second diagonal of described second radiation fin
On.
8. communication antenna as claimed in claim 7, it is characterised in that described first radiation fin and described
The position of the second radiation fin is put as making described first diagonal at an angle with described second diagonal.
9. communication antenna as claimed in claim 7, it is characterised in that described first radiation fin and described
The position of the second radiation fin is put as making described first diagonal vertical with described second diagonal.
10. communication antenna as claimed in claim 1, it is characterised in that described first, second, third,
It is coaxial feed portion with the 4th current feed department.
11. communication antennas as claimed in claim 1, it is characterised in that described first current feed department and second
Current feed department is arranged on the first axis of symmetry of described first radiation fin, described 3rd current feed department and the 4th current feed department
It is arranged on the second axis of symmetry of described second radiation fin, described first axis of symmetry and described second axis of symmetry side
To difference.
12. communication antennas as claimed in claim 11, it is characterised in that described first axis of symmetry and institute
State the second axis of symmetry orthogonal.
13. communication antennas as claimed in claim 1, it is characterised in that described first substrate is by electrolyte
Base material is made, and described second substrate is made up of the described dielectric substrate doped with conductive micro structures.
14. communication antennas as claimed in claim 1, it is characterised in that described first radiation fin and described
The size of the second radiation fin is different, and the dielectric constant of the counterpart substrate of larger-size radiation fin is less.
15. communication antennas as claimed in claim 1, it is characterised in that described first radiation fin and described
Second radiation fin equivalently-sized, described first substrate is identical with the dielectric constant of described second substrate.
16. communication antennas as claimed in claim 15, it is characterised in that described first substrate and described
Second substrate is same substrate.
17. communication antennas as claimed in claim 1, it is characterised in that described first radiation fin and described
Second radiation fin is supported on installation surface by supporting construction, does not contacts with described installation surface, and described the
One substrate and described second substrate are described first radiation fin and described second radiation fin and described installation surface
Between air.
18. communication antennas as claimed in claim 1, it is characterised in that also include cavity, described first
Radiant body and described second radiant body are placed in described cavity.
19. communication antennas as claimed in claim 18, it is characterised in that described cavity is circular or square gold
Belong to cavity.
20. communication antennas as described in claim 18 or 19, it is characterised in that at described cavity and described
It is provided with packing material in space between first, second radiant body.
21. communication antennas as claimed in claim 1, it is characterised in that also including that frequency selects antenna house, it is put
Receive and/or on the electromagnetic wave propagation direction of transmitting in described communication antenna.
22. communication antennas as claimed in claim 21, it is characterised in that described frequency selects antenna house and described logical
Letter antenna is conformal.
23. 1 kinds of antenna systems, including:
Feed port；
Power splitter, the first end of described power splitter is connected to described feed port；And
Communication antenna according to any one of claim 1-22, the second end of wherein said power splitter via
First feeder line is connected to the first current feed department of described communication antenna, and the 3rd end of described power splitter is via
Two feeder lines are connected to the second current feed department of described communication antenna, and the 4th end of described power splitter is via the 3rd
Feeder line is connected to the 3rd current feed department of described communication antenna, and the 5th end of described power splitter is via the 4th feedback
Electric line is connected to the 4th current feed department of described communication antenna,
Wherein said first feeder line, described second feeder line, described 3rd feeder line, described
Four feeder lines have phase shift each other.
24. antenna systems as claimed in claim 23, it is characterised in that described second feeder line bag
Including the phase shifter to introduce relative to the phase shift of the first feeder line 180 °, described 3rd feeder line includes moving
Phase device to introduce relative to the phase shift of the first feeder line 90 °, described 4th feeder line include the phase shifter with
Introduce the phase shift relative to the first feeder line 270 °.
25. antenna systems as claimed in claim 23, it is characterised in that described second feeder line and
The length of described first feeder line differs 1/2 wavelength and realizes 180 ° of phase shifts, described 3rd feeder line and
The length of described first feeder line differs 1/4 wavelength and realizes 90 ° of phase shifts, described 4th feeder line and
The length of described first feeder line differs 3/4 wavelength and realizes 270 ° of phase shifts.
26. 1 kinds of communication equipments, including the communication antenna according to any one of claim 1-22, and/or power
Profit requires the antenna system according to any one of 23-25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510051983.6A CN105990640B (en) | 2015-01-30 | 2015-01-30 | Communication antenna, antenna system and communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510051983.6A CN105990640B (en) | 2015-01-30 | 2015-01-30 | Communication antenna, antenna system and communication device |
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| CN105990640A true CN105990640A (en) | 2016-10-05 |
| CN105990640B CN105990640B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510051983.6A Active CN105990640B (en) | 2015-01-30 | 2015-01-30 | Communication antenna, antenna system and communication device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311225A (en) * | 2019-07-24 | 2019-10-08 | 广州辰创科技发展有限公司 | A kind of antenna design method and antenna |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637957A (en) * | 2012-05-10 | 2012-08-15 | 东南大学 | Dual-probe reverse phase feeding microstrip antenna |
| CN103474766A (en) * | 2013-09-23 | 2013-12-25 | 深圳市华信天线技术有限公司 | Antenna device and receiving system |
| CN203607540U (en) * | 2013-12-12 | 2014-05-21 | 深圳光启创新技术有限公司 | Circularly polarized antenna, antenna system, and communication equipment |
| US8773319B1 (en) * | 2012-01-30 | 2014-07-08 | L-3 Communications Corp. | Conformal lens-reflector antenna system |
| CN204407479U (en) * | 2015-01-30 | 2015-06-17 | 深圳光启高等理工研究院 | Communication antenna, antenna system and communication equipment |
-
2015
- 2015-01-30 CN CN201510051983.6A patent/CN105990640B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8773319B1 (en) * | 2012-01-30 | 2014-07-08 | L-3 Communications Corp. | Conformal lens-reflector antenna system |
| CN102637957A (en) * | 2012-05-10 | 2012-08-15 | 东南大学 | Dual-probe reverse phase feeding microstrip antenna |
| CN103474766A (en) * | 2013-09-23 | 2013-12-25 | 深圳市华信天线技术有限公司 | Antenna device and receiving system |
| CN203607540U (en) * | 2013-12-12 | 2014-05-21 | 深圳光启创新技术有限公司 | Circularly polarized antenna, antenna system, and communication equipment |
| CN204407479U (en) * | 2015-01-30 | 2015-06-17 | 深圳光启高等理工研究院 | Communication antenna, antenna system and communication equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311225A (en) * | 2019-07-24 | 2019-10-08 | 广州辰创科技发展有限公司 | A kind of antenna design method and antenna |
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| CN105990640B (en) | 2024-03-15 |
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