CN204407501U - Communication antenna, antenna system and communication apparatus - Google Patents
Communication antenna, antenna system and communication apparatus Download PDFInfo
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- CN204407501U CN204407501U CN201520074648.3U CN201520074648U CN204407501U CN 204407501 U CN204407501 U CN 204407501U CN 201520074648 U CN201520074648 U CN 201520074648U CN 204407501 U CN204407501 U CN 204407501U
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Abstract
The utility model relates to communication antenna, antenna system and communication apparatus.Communication antenna can comprise the first radiant body, and wherein the first radiant body comprises first substrate and setting the first radiation fin on the first substrate, and the first radiation fin has the first current feed department and corner cut, and the radiating surface of the first radiation fin is convex surface; And second radiant body, wherein the second radiant body comprises second substrate and is arranged on the second radiation fin on second substrate, second radiation fin has the second current feed department and corner cut, and the radiating surface of the second radiation fin is convex surface, wherein the second substrate of the second radiant body is placed on the first radiation fin of the first radiant body stackedly.
Description
Technical field
The utility model relates to a kind of antenna, especially relates to a kind of communication antenna, has the antenna system of this communication antenna and uses the communication apparatus of this communication antenna or antenna system.
Background technology
Antenna is that one is used for wirelessly launching and/or receive electromagnetic electronic device, and is widely deployed in the systems such as broadcast and TV, radio communication, radar and space probation.Along with the develop rapidly of wireless communication technology, the field involved by antenna technology is more and more extensive.In many application-specific, the requirement for antenna performance is also more and more higher, therefore there is different types of antenna to meet the different demands of various application, such as microstrip antenna, loop aerial, horn antenna, flat plane antenna etc.In modern communications, along with the raising of communication system integrated level, require that the antenna used has the features such as high-gain, broadband or multiband, circular polarization, miniaturization or wide covering.
In the prior art, when needs adopt multiband (such as, two-band) antenna or multiband circular polarized antenna, normally different frequency ranges is realized respectively by multiport, multiple antennas.In this case, usually also need many cover signal processing apparatus to overlap signal to process different aerial signals or to process with using a set of signal processing apparatus time division multiplexing more.Therefore, the shortcomings such as multiband aerial of the prior art has that antenna amount is many, complex structure, size are comparatively large, polarization and gain performance difference.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of communication antenna, especially provides a kind of two-band communication antenna, and provides a kind of circular polarization dual-band antenna system further and use the communication apparatus of this type of communication antenna or antenna system.
For solving the problems of the technologies described above, the utility model provides a kind of communication antenna, comprise: the first radiant body, wherein the first radiant body comprises first substrate and setting the first radiation fin on the first substrate, first radiation fin has the first current feed department and corner cut, and the radiating surface of the first radiation fin is convex surface; And second radiant body, wherein the second radiant body comprises second substrate and is arranged on the second radiation fin on second substrate, second radiation fin has the second current feed department and corner cut, and the radiating surface of the second radiation fin is convex surface, wherein the second substrate of the second radiant body is placed on the first radiation fin of the first radiant body stackedly.
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 first radiation fin and described second radiation fin are separately for having the rectangle of corner cut.
Preferably, described first radiation fin has two corner cuts on the first diagonal, and described second radiation fin has two corner cuts on the second diagonal.
Preferably, described second diagonal of described first diagonal of described first radiation fin and described second radiation fin at angle.
Preferably, described first diagonal of described first radiation fin and described second diagonal of described second radiation fin mutually vertical.
Preferably, the geometric center of described first radiation fin and described second radiation fin is aligned with each other.
Preferably, described first current feed department and the second current feed department are coaxial feed portions.
Preferably, described first current feed department is arranged on the first symmetry axis of described first radiation fin, and described second current feed department is arranged on the second symmetry axis of described second radiation fin, and described first symmetry axis is different with described second symmetry axis direction.
Preferably, described first symmetry axis and described second symmetry axis orthogonal.
Preferably, the size of described first radiation fin is greater than the size of described second radiation fin.
Preferably, the dielectric constant of described second substrate is greater than the dielectric constant of described first substrate.
Preferably, described first radiant body and the second radiant body are placed in cavity, and wherein said cavity is in the radiation direction upper shed of described communication antenna.
Preferably, described cavity is circular or square cavity.
Preferably, described first radiant body and between the second radiant body and described cavity, there is packing material.
Preferably, described first substrate and second substrate are rectangle separately.
Preferably, described first substrate and/or second substrate are made up of the dielectric substrate doped with conductive micro structures.
Preferably, described first radiant body and described second radiant body are electrically insulated from each other.
Preferably, described communication antenna also comprises: frequently select radome, described frequency selects radome to be arranged in the radiation direction of described communication antenna.
In another embodiment, the utility model provides a kind of antenna system, comprising: feed port; Power splitter, the first end of described power splitter is connected to described feed port; Communication antenna as above, second end of wherein said power splitter is connected to described first current feed department via the first feeder line, and the 3rd end of described power splitter is connected to described second current feed department via the second feeder line, between the signal on the signal on wherein said first feeder line and described second feeder line, there is phase shift each other.
Preferably, described first feeder line or described second feeder line has phase shifter.
Preferably, described phase shifter is 90 ° of phase shifters.
Preferably, the length of described first feeder line and described second feeder line differs 1/4 wavelength.
In a further embodiment, the utility model provides a kind of communication apparatus, comprises communication antenna as above or antenna system as above.
The utility model, owing to adopting above technical scheme, therefore compared with prior art has following remarkable advantage:
Communication antenna of the present utility model adopts the first stacked radiant body and the second radiant body, can reduce volume and the size of communication antenna.By the radiating surface making each radiant body of antenna possess convex surface, be conducive to improving radiation efficiency, and meet miniaturization and the conformalization design requirement of application circumstances further.Such as, when the radiating surface of the first radiation fin and the second radiation fin is convex surface, the first radiant body and the second radiant body (and optional cavity bottom) can be conformal convex structure, make this communication antenna can be compacter.
Communication antenna in the utility model is by making each radiation fin realize two-band linear polarization to radiation fin corner cut.In addition, the first radiant body and the second radiant body can be operated in identical two-band.By arranging the linear polarization direction of the first radiation fin and the second radiation fin, a communication antenna can be adopted to realize dual-linear polarization two-band.
Further, antenna system of the present utility model is by making the input signal phase shift entering one of them radiant body, and the first stacked radiant body and the second radiant body can form circular polarization or elliptical polarized radiation signal.With need two cover signal processing apparatus to realize two-band circular polarization or process compared with two cover signals with using a set of signal processing apparatus time division multiplexing in prior art, the utility model reduces the volume of antenna system, weight and cost.
To sum up, communication antenna of the present utility model has that section is low, lightweight, volume is little, be easy to conformal and the advantage such as batch production, two-band linear polarization can be realized or realize two-band circular polarization even further, can be widely used in measuring and communication every field.
Accompanying drawing explanation
In order to make above-mentioned purpose of the present utility model, feature and advantage can more perspicuousness, below in conjunction with accompanying drawing, embodiment of the present utility model be elaborated, wherein:
Fig. 1 illustrates the perspective view of the communication antenna according to the utility model one embodiment;
Fig. 2 illustrates the floor map of the communication antenna according to the utility model one embodiment;
Fig. 3 a illustrates the decomposing schematic representation of the communication antenna with exemplary cavity and radome according to the utility model one embodiment;
Fig. 3 b illustrates that the example communication antenna according to the utility model one embodiment is placed in the floor map of square cavity;
Fig. 3 c illustrates that the example communication antenna according to the utility model one embodiment is placed in the floor map of circular cavity;
Fig. 4 illustrates the structural representation of the antenna system according to the utility model one embodiment;
Fig. 5 a illustrates the voltage standing wave ratio curve chart of the communication antenna according to the utility model embodiment;
Fig. 5 b illustrates the voltage standing wave ratio curve chart of the antenna system according to the utility model embodiment;
Fig. 6 illustrates the gain curve figure of the antenna system according to the utility model embodiment;
Fig. 7 illustrates the axial ratio curve chart of the antenna system according to the utility model embodiment.
Embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail; set forth more details in the following description so that fully understand the utility model; but the utility model obviously can be implemented with multiple this alternate manner described that is different from; those skilled in the art can when doing similar popularization, deduction without prejudice to when the utility model intension according to practical situations, therefore should with the content constraints of this specific embodiment protection range of the present utility model.
Fig. 1 illustrates the perspective view of the communication antenna 100 according to the utility model one embodiment.Fig. 2 illustrates the floor map of the communication antenna 100 according to the utility model one embodiment.Shown in figure 1 and Fig. 2, communication antenna 100 can comprise the first radiant body 10 and the second radiant body 20 of stacked placement, wherein the first radiant body 10 comprises first substrate 11 and the first radiation fin 12 be arranged on first substrate 11, and the second radiation fin 22 that the second radiant body 20 comprises second substrate 21 and is arranged on second substrate 21.The second substrate 21 of the second radiant body 20 is placed on the first radiation fin 12 of the first radiant body 10 stackedly.
First radiation fin 12 and the second radiation fin 22 are made up of electric conducting material (such as metal).First radiation fin 12 and the second radiation fin 22 can be the paster on first substrate 11 and second substrate 21 respectively, also can be the coating through photoetching process etching on first substrate 11 and second substrate 21 respectively.The radiant body of each radiation fin and corresponding substrate composition forms a transmission/reception unit.In one embodiment, the radiating surface (upper surface in Fig. 1) of the first radiation fin 12 is convex surface.Similarly, the radiating surface (upper surface in Fig. 1) of the second radiation fin 22 is convex surface.First substrate 11 can be conformally convex with the first radiation fin 12, and second substrate 21 can be conformally convex with the second radiation fin 22.In other embodiments, first substrate 11, second substrate 21 also can be slab construction or other shapes separately.
Illustrate in Fig. 1 that first substrate 11, first radiation fin 12, second substrate 21 and the second radiation fin 22 are rectangle separately, but in other alternative embodiments, also can adopt other shapes respectively, and can be mutually the same/similar or different.Such as, the first radiation fin 12 can be identical with the shape of the second radiation fin 22.Preferably, the size of the first radiation fin 12 can be greater than the size of the second radiation fin 22, such as, make the edge of the first radiation fin 12 do not blocked by the second radiation fin 22 (or second radiant body 20).In one embodiment, the geometric center of the first radiation fin 12 and the second radiation fin 22 can be aligned with each other.First substrate 11 and second substrate 21 can be made up of dielectric substrate, thus when the first radiant body 10 and the stacked placement of the second radiant body 20, second substrate 21 makes the first radiant body 10 and the second radiant body 20 be electrically insulated from each other.Meanwhile, communication antenna 100 and other construction packages can be kept apart by first substrate 11.
Further, conduction (such as, metal) micro-structural can be had in first substrate 11 and second substrate 21.Conductive micro structures in substrate has certain geometric plane or stereochemical structure, and can level and/or be placed on vertically in base material, also referred to as metamaterial microstructure.By arranging conductive micro structures in substrate, the dielectric constant of substrate can be changed, thus be applicable to providing the substrate with differing dielectric constant.In one embodiment, the dielectric constant of second substrate 21 can be greater than the dielectric constant of first substrate 11.
As shown in Fig. 1,2, the first radiation fin 12 and the second radiation fin 22 can have corner cut separately, namely excise radiation fin certain/some angle or portion of material.By controlling the geometric shape (size, position, excision angle etc. of corner cut) of corner cut, the first radiation fin 12 and the second radiation fin 22 can realize two-band linear polarization separately, and can control the frequency range position of two-band.In one embodiment, the first radiation fin 12 and the second radiation fin 22 are rectangular radiation patch, in hexagon behind two diagonal angles on its each leisure excision diagonal.Such as, the first radiation fin 12 can have two corner cut 15a and 15b on the first diagonal A, and the second radiation fin 22 can have two corner cut 25a and 25b on the second diagonal B.In one embodiment, the second diagonal B of the first diagonal A of the first radiation fin 12 and the second radiation fin 22 at angle.Preferably, the first diagonal A of the first radiation fin 12 and the second diagonal B of the second radiation fin 22 is mutually vertical.Be appreciated that in other embodiments of the present utility model, the first radiation fin 12 and respective two corner cuts of the second radiation fin 22 can not be on the diagonal.By controlling the corner cut of the first radiation fin 12 and the second radiation fin 22, the first radiant body 10 and the second radiant body 20 separately can transmitting/receiving two-band linear polarization signals, and the first radiant body 10 and the second radiant body 20 can be operated in identical two-band.Because the first diagonal A and the second diagonal B is angled, the linear polarization signal of the first radiant body 10 and the second radiant body 20 can form circular polarization or elliptical polarized radiation signal when there being phase shift each other.Especially when diagonal A with B at corner cut place is vertical, two linear polarizations can be made to be in orthogonal state, namely, one is horizontal polarization, one is perpendicular polarization, thus a route polarized signal has when 90 degree of phase shifts and forms good circular polarization radiation signal with another route polarized signal wherein.
Corner cut can have various form, as size, position, the excision angle angle of radiation fin edge (that is, with) etc.Preferably, the angle of each corner cut 15a, 15b, 25a and 25b is chosen between 55 degree at 35 degree.More preferably, the angle of each corner cut 15a, 15b, 25a and 25b is 45 degree.Be understandable that, corner cut also can be other angle.Preferably, each corner cut 15a, 15b, 25a are identical with the shape of 25b.
Fig. 1,2 also illustrates that the first radiation fin 12 has the first current feed department 16 (not shown in Fig. 1, illustrate with dotted circle in Fig. 2, expression is positioned on the first radiation fin 12 below), and the second radiation fin 22 has the second current feed department 26.First current feed department 16 and the second current feed department 26 can receive input signal to be radiate by the first radiation fin 12 and the second radiation fin 22 from feed respectively, or export the signal received by the first radiation fin 12 and the second radiation fin 22 to processing unit.In one embodiment, the first current feed department 16 can be positioned in the horizontal symmetry axis of the first radiation fin 12, and the second current feed department 26 can be positioned in the vertical axis of symmetry of the second radiation fin 22.Alternatively, the first current feed department 16 can be positioned in the vertical axis of symmetry of the first radiation fin 12, and the second current feed department 26 can be positioned in the horizontal symmetry axis of the second radiation fin 22.Wherein, the first current feed department 16 and the second current feed department 26 can the symmetry axis residing for it move, to regulate the impedance matching of corresponding radiation fin.Preferably, the first current feed department 16 is coaxial feed portions.Similarly, the second current feed department 26 is preferably coaxial feed portion.Adopt the mode of coaxial feed, reduce the interference of feed structure.
Communication antenna 100 compact conformation as above, and each radiation fin and substrate can have conformal structure, reduce the size of communication antenna, improve integrated level.On the other hand, by arranging corner cut on the first radiation fin 12 and the second radiation fin 22, each radiation fin can realize two-band linear polarization, and can the working frequency range of control on demand first radiation fin 12 and the second radiation fin 22 and linear polarization direction, thus a communication antenna 100 can be adopted to realize dual-linear polarization two-band.
Fig. 3 a illustrates the decomposing schematic representation of the communication antenna with exemplary cavity 300 and selectable antenna cover 310 according to the utility model one embodiment.Communication antenna 100 as shown in Figure 1 can be placed in cavity 300, and wherein cavity 300 is in the radiation direction upper shed of communication antenna 100.Cavity 300 can have various suitable shape, such as square or circular cavity.Exemplarily unrestricted, Fig. 3 b illustrates that the example communication antenna 100 according to the utility model one embodiment is placed in the floor map of square cavity 300b, and Fig. 3 c illustrates that the example communication antenna 100 according to the utility model one embodiment is placed in the floor map of circular cavity 300c.
The effect of cavity 300 includes but not limited to: supporting communication antenna 100, make the impact of communication antenna 100 from surrounding environment and the impact etc. of manual operation.The material of cavity 300 is not restricted, and is generally metal, but also can be the nonmetallic materials of applicable enforcement demand.When cavity 300 is conductive material, microstrip antenna 100 does not preferably contact the sidewall of cavity 300.Alternatively, between cavity 300 and communication antenna 100, suitably packing material can be set, to play fixing, damping and/or supporting role better.Such as, can place foam-filled material to fill the space between communication antenna 100 and cavity 300 in cavity 300, air pressure is unstable in use to prevent communication antenna 100.In one embodiment, can be conformal convex structure bottom the first radiant body 10 of communication antenna 100 and the second radiant body 20 and cavity 300, make this communication antenna can be compacter.
In one alternate embodiment, radome 310 can be set in the radiation direction of communication antenna 100.Radome 310 can be fixed to the substrate of communication antenna 100, or can be fixed to cavity 300 when having cavity 300 thus cover the opening of cavity 300.Radome 310 can be set to and communication antenna 100 and/or cavity 300 conformal (such as, convex), fully to meet miniaturized requirement.Radome 310 also can have other shapes, such as tabular.Radome 310 can provide protective action for communication antenna 100, and preferably has good wave penetrate capability, thus does not affect the signal radiation/reception of communication antenna 100.
In a further embodiment, radome 310 can be frequently select radome 310, frequently selects radome 310 to have good wave penetrate capability and can produce the electromagnetic response of expection, thus controlling electromagnetic wave propagation.
Fig. 4 illustrates the schematic diagram of the antenna system according to the utility model embodiment.Antenna system shown in Fig. 4 comprises the feed port 410 of front end, power splitter 420, first feeder line 430a and the communication antenna 100 described in the second feeder line 430b and Fig. 1 and Fig. 2.In one embodiment, power splitter 420 can be one-to-two power splitter.Feed port 410, power splitter 420, first feeder line 430a and the second feeder line 430b form the feeding network of antenna system, and wherein the first feeder line 430a and the second feeder line 430b is connected to the first current feed department 16 of the first radiant body 10 and the second current feed department 26 of the second radiant body 20 respectively.Such as, the first end of power splitter 420 is connected to feed port 410, and the second end of power splitter 420 is connected to the first current feed department 16 via the first feeder line 430a, and the 3rd end of power splitter 420 is connected to the second current feed department 26 via the second feeder line 430b.Power splitter 420 pumping signal of in the future self feeding port 410 can split into multichannel (such as, two-way) pumping signal to be delivered to the first feeder line 430a and the second feeder line 430b, or to merge into a road Received signal strength by via the first feeder line 430a and the second feeder line 430b from the Received signal strength of multiple antenna radiator and is delivered to feed port 410.Power splitter 420 can adopt the 3dB power splitter of microstrip line merit point mode, to save the weight of space and effective mitigation system.Further, 3dB power splitter can remove isolation resistance wherein.
In one embodiment, phase shift is had each other between the signal on the first feeder line 430a and the signal on the second feeder line 430b.In one embodiment, as at Fig. 4 in the antenna system described, at least one in first feeder line 430a and the second feeder line 430b can have phase shifter 440 (such as, 90 ° of phase shifters), make the pumping signal out-phase 90 ° each other of feed-in first radiant body 10 and the second radiant body 20, thus the circular polarization mode of operation of communication antenna 100 can be realized.In another embodiment (not shown), the length of the first feeder line 430a and the second feeder line 430b can differ 1/4 wavelength, thus realizes 90 ° of phase shifts.As mentioned above, communication antenna 100 can realize dual-linear polarization two-band by the first stacked radiant body 10 and the second radiant body 20.By making the input signal phase shift 90 ° entering one of them radiant body, the linear polarization two-band signal of the first radiant body 10 and the linear polarization two-band Signal averaging of 90 ° of phase shifts that has of the second radiant body 20 can form circular polarization or elliptical polarized radiation signal.That is, antenna system of the present utility model finally can realize single-port and double-frequency section circular polarization.
When carrying out transmitting work, one tunnel pumping signal enters the first end (now it is input) of power splitter 420 from feed port 410, two paths of signals is divided into through power splitter 420, wherein a road signal is supplied to the first current feed department 16 of the first radiant body 10 in communication antenna 100 through the second end (now it is output) and the first feeder line 430a, and another road signal is supplied to the second current feed department 26 of the second radiant body 20 of communication antenna 100 through the 3rd end (now it is output) and the second feeder line 430b (and phase shifter 440).When carrying out reception work, the two-way Received signal strength received by the first radiant body 10 and the second radiant body 20 is transferred to the second end (now it is input) and the 3rd end (now it is input) of power splitter 420 from the first current feed department 16 and the second current feed department 26 through the first feeder line 430a and the second feeder line 430b (and phase shifter 440) respectively, a signal is combined into through power splitter 420, feed port 410 is exported to, by follow-up receiving circuit process again from first end (now it is output).It will be understood by those skilled in the art that phase shifter 440 can be positioned on the first feeder line 430a, operation principle is identical.
Thus, only can realize two-band circular polarization with a set of signal processing apparatus, enormously simplify the structure of antenna, reduce cost.The communication antenna of the utility model above-described embodiment or antenna system can be incorporated in communication apparatus, thus are communication apparatus sending/receiving signal.
Fig. 5 a illustrates the radiation voltage standing-wave ratio curve chart of the communication antenna 100 according to the utility model embodiment, and wherein transverse axis is frequency, and the longitudinal axis is voltage standing wave ratio (VSWR) real part.The communication antenna 100 (or one of them radiant body 20 or 30) that voltage standing wave ratio shown in Fig. 5 a shows as described in Figure 1 can realize the radiation of linear polarization two-band when receiving a road pumping signal, it has good voltage standing wave ratio in two frequency ranges.
Fig. 5 b shows the receiver voltage standing-wave ratio curve chart of the antenna system according to the utility model one embodiment, and wherein transverse axis is frequency, and the longitudinal axis is voltage standing wave ratio (VSWR) real part.The signal that the communication antenna 100 (comprising two antenna radiators) that voltage standing wave ratio shown in Fig. 5 b shows antenna system as shown in Figure 4 receives is at the signal that feed port 410 exports after power splitter 420 converges, and it has good voltage standing wave ratio on whole working frequency range.
Fig. 6 shows the gain curve figure of the antenna system according to the utility model one embodiment, and wherein transverse axis is the angle of pitch (degree), and the longitudinal axis is far gain, and it achieves good gain in ± 50 ° of pitch range.
Fig. 7 shows the axial ratio curve chart of the antenna system according to the utility model one embodiment, and wherein transverse axis is azimuth (degree), and the longitudinal axis is far field axial ratio.Can find out that the antenna system of the utility model embodiment in ± 50 ° of azimuth coverages, can realize axial ratio and be less than or equal to 5, reach good circular polarization performance.
The performance curve of composition graphs 5 to Fig. 7, the communication antenna in known the utility model is by making each radiation fin realize two-band linear polarization to radiation fin corner cut.In addition, the first radiant body and the second radiant body can be operated in identical two-band.Further, antenna system of the present utility model is by making the input signal phase shift 90 ° entering one of them radiant body, and the first stacked radiant body and the second radiant body can form circular polarization or elliptical polarized radiation signal.With need two cover signal processing apparatus to realize two-band circular polarization or process compared with two cover signals with using a set of signal processing apparatus time division multiplexing in prior art, the utility model reduces the volume of antenna system, weight and cost.
Section is low, lightweight, volume is little owing to having for communication antenna of the present utility model, be easy to conformal and batch production advantage, can be widely used in measuring and communication every field.The antenna system range of application realizing circular polarization performance of the utility model embodiment is more extensive, can be applied to the field such as mobile communication, satellite navigation.
Although the utility model describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is only used to the utility model is described, change or the replacement of various equivalence also can be made when not departing from the utility model spirit, therefore, as long as all will drop in the scope of claims of the application the change of above-described embodiment, modification in spirit of the present utility model.
Claims (26)
1. a communication antenna, is characterized in that, comprising:
First radiant body, wherein the first radiant body comprises first substrate and setting the first radiation fin on the first substrate, and the first radiation fin has the first current feed department and corner cut, and the radiating surface of the first radiation fin is convex surface; And
Second radiant body, wherein the second radiant body comprises second substrate and is arranged on the second radiation fin on second substrate, and the second radiation fin has the second current feed department and corner cut, and the radiating surface of the second radiation fin is convex surface,
Wherein the second substrate of the second radiant body is placed on the first radiation fin of the first radiant body stackedly.
2. communication antenna as claimed in claim 1, it is characterized in that, described first radiant body and described second radiant body realize two-band linear polarization respectively.
3. communication antenna as claimed in claim 2, it is characterized in that, described first radiant body and described second radiant body are operated in identical two-band.
4. communication antenna as claimed in claim 2, it is characterized in that, described first radiant body realizes different linear polarization directions from described second radiant body.
5. communication antenna as claimed in claim 1, it is characterized in that, described first radiation fin and described second radiation fin are separately for having the rectangle of corner cut.
6. communication antenna as claimed in claim 5, it is characterized in that, described first radiation fin has two corner cuts on the first diagonal, and described second radiation fin has two corner cuts on the second diagonal.
7. communication antenna as claimed in claim 6, it is characterized in that, described first diagonal of described first radiation fin and described second diagonal of described second radiation fin are at angle.
8. communication antenna as claimed in claim 7, it is characterized in that, described first diagonal of described first radiation fin is mutually vertical with described second diagonal of described second radiation fin.
9. communication antenna as claimed in claim 1, it is characterized in that, the geometric center of described first radiation fin and described second radiation fin is aligned with each other.
10. communication antenna as claimed in claim 1, it is characterized in that, described first current feed department and the second current feed department are coaxial feed portions.
11. communication antennas as claimed in claim 1, it is characterized in that, described first current feed department is arranged on the first symmetry axis of described first radiation fin, and described second current feed department is arranged on the second symmetry axis of described second radiation fin, and described first symmetry axis is different with described second symmetry axis direction.
12. communication antennas as claimed in claim 11, is characterized in that, described first symmetry axis and described second symmetry axis orthogonal.
13. communication antennas as claimed in claim 1, is characterized in that, the size of described first radiation fin is greater than the size of described second radiation fin.
14. communication antennas as claimed in claim 13, it is characterized in that, the dielectric constant of described second substrate is greater than the dielectric constant of described first substrate.
15. communication antennas as claimed in claim 1, it is characterized in that, described first radiant body and the second radiant body are placed in cavity, and wherein said cavity is in the radiation direction upper shed of described communication antenna.
16. communication antennas as claimed in claim 15, is characterized in that, described cavity is circular or square cavity.
17. communication antennas as claimed in claim 15, is characterized in that, described first radiant body and have packing material between the second radiant body and described cavity.
18. communication antennas as claimed in claim 1, is characterized in that, described first substrate and second substrate are rectangle separately.
19. communication antennas as claimed in claim 1, it is characterized in that, described first substrate and/or second substrate are made up of the dielectric substrate doped with conductive micro structures.
20. communication antennas as claimed in claim 1, is characterized in that, described first radiant body and described second radiant body are electrically insulated from each other.
21. communication antennas as claimed in claim 1, is characterized in that, also comprise:
Frequently select radome, described frequency selects radome to be arranged in the radiation direction of described communication antenna.
22. 1 kinds of antenna systems, is characterized in that, comprising:
Feed port;
Power splitter, the first end of described power splitter is connected to described feed port;
Communication antenna according to any one of claim 1 to 21, second end of wherein said power splitter is connected to described first current feed department via the first feeder line, and the 3rd end of described power splitter is connected to described second current feed department via the second feeder line, between the signal on the signal on wherein said first feeder line and described second feeder line, there is phase shift each other.
23. antenna systems as claimed in claim 22, is characterized in that, described first feeder line or described second feeder line have phase shifter.
24. antenna systems as claimed in claim 23, is characterized in that, described phase shifter is 90 ° of phase shifters.
25. antenna systems as claimed in claim 22, it is characterized in that, the length of described first feeder line and described second feeder line differs 1/4 wavelength.
26. 1 kinds of communication apparatus, is characterized in that, comprise the communication antenna according to any one of claim 1 to 21 or the antenna system according to any one of claim 22 to 25.
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| CN201520074648.3U CN204407501U (en) | 2015-01-30 | 2015-01-30 | Communication antenna, antenna system and communication apparatus |
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| CN201520074648.3U CN204407501U (en) | 2015-01-30 | 2015-01-30 | Communication antenna, antenna system and communication apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016119725A1 (en) * | 2015-01-30 | 2016-08-04 | 深圳光启高等理工研究院 | Antenna, antenna system and communication device |
| WO2016119715A1 (en) * | 2015-01-30 | 2016-08-04 | 深圳光启高等理工研究院 | Communication antenna and communication antenna system |
| CN105990661A (en) * | 2015-01-30 | 2016-10-05 | 深圳光启尖端技术有限责任公司 | Communication antenna, antenna system and communication device |
| CN106252893A (en) * | 2016-01-18 | 2016-12-21 | 何若愚 | A kind of microband antenna unit |
| CN115441206A (en) * | 2022-09-28 | 2022-12-06 | 珠海中科慧智科技有限公司 | Lens antenna |
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2015
- 2015-01-30 CN CN201520074648.3U patent/CN204407501U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016119725A1 (en) * | 2015-01-30 | 2016-08-04 | 深圳光启高等理工研究院 | Antenna, antenna system and communication device |
| WO2016119715A1 (en) * | 2015-01-30 | 2016-08-04 | 深圳光启高等理工研究院 | Communication antenna and communication antenna system |
| CN105990661A (en) * | 2015-01-30 | 2016-10-05 | 深圳光启尖端技术有限责任公司 | Communication antenna, antenna system and communication device |
| CN106252893A (en) * | 2016-01-18 | 2016-12-21 | 何若愚 | A kind of microband antenna unit |
| CN115441206A (en) * | 2022-09-28 | 2022-12-06 | 珠海中科慧智科技有限公司 | Lens antenna |
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Effective date of registration: 20151117 Address after: 518057 Guangdong City, Nanshan District province high tech Zone in the middle of a high tech building, building No. 2, No. 9, building Patentee after: Shenzhen Guangqi Innovative Technology Co., Ltd. Address before: 518057 Guangdong City, Nanshan District province high tech Zone in the middle of a high tech building, building No. 2, No. 9, building Patentee before: Shenzhen Kuang-Chi Institute of Advanced Technology |