CN204407482U - Communication antenna, antenna system and communication equipment - Google Patents
Communication antenna, antenna system and communication equipment Download PDFInfo
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- CN204407482U CN204407482U CN201520074729.3U CN201520074729U CN204407482U CN 204407482 U CN204407482 U CN 204407482U CN 201520074729 U CN201520074729 U CN 201520074729U CN 204407482 U CN204407482 U CN 204407482U
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Abstract
The utility model relates to a kind of communication antenna, comprise the first radiant body and the second radiant body, the first radiation fin that described first radiant body comprises first substrate and arranges on the first substrate, described second radiant body comprises second substrate and is arranged on the second radiation fin on second substrate, described first radiant body has the first current feed department, described second radiant body has the second current feed department, described first radiant body and the second radiant body are arranged in same mounting surface, and the radiating surface of described first radiation fin and the second radiation fin is concave surface.
Description
Technical field
The utility model relates to a kind of antenna, especially relates to a kind of communication antenna, and uses antenna system and the communication equipment of this communication antenna.
Background technology
Antenna is the necessary component in wireless communication system, for transmitting and receiving electromagnetic wave.Antenna applications is in systems such as broadcast and TV, point-to-point radio communication, radar and space probations.Along with the develop rapidly of wireless communication technology, the field involved by antenna technology is more and more extensive.In many special applications, the requirement for antenna performance is also more and more higher.In modern communications, along with the raising of communication system integrated level, require that the antenna used has the feature such as high-gain, broadband or multiband, circular polarization, miniaturization, wide covering.
In prior art, the common scheme realizing double frequency/multifrequency antenna comprises: on microstrip antenna, change the CURRENT DISTRIBUTION of higher mode to realize double frequency with the method loading grounding probe or fluting; Multilayer microband paste layered manner (each paster be operated in an independent frequency under) is adopted to realize double frequency/multifrequency.
There is the problem of complex structure, complex manufacturing technology all to some extent in above prior art.Meanwhile, along with the raising of communication system integrated level, these prior aries can not meet miniaturization and the conformalization design requirement of communication antenna gradually.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of communication antenna and respective antenna system and communication equipment, especially provide a kind of miniaturization, two-band, circular polarization communication antenna and comprise antenna system and the communication equipment of this communication antenna.
For solving the problems of the technologies described above, the utility model provides a kind of communication antenna, comprise the first radiant body and the second radiant body, the first radiation fin that described first radiant body comprises first substrate and arranges on the first substrate, described second radiant body comprises second substrate and is arranged on the second radiation fin on second substrate, described first radiant body has the first current feed department, described second radiant body has the second current feed department, described first radiant body and the second radiant body are arranged in same mounting surface, and the radiating surface of described first radiation fin and the second radiation fin is concave surface.
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 mounting surface is concave surface, and described first radiant body and the second radiant body and described mounting surface 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 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 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 and described second diagonal at angle.
Preferably, described first radiation fin and the position of described second radiation fin are put as making described first diagonal vertical with described second diagonal.
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, described first substrate is made up of dielectric substrate, and described second substrate is made up of the described dielectric substrate doped with conductive micro structures.
Preferably, described first radiation fin is different with the size of described second radiation fin, and the dielectric constant of the counterpart substrate of larger-size radiation fin is less.
Preferably, described first radiation fin and described second radiation fin measure-alike, described first substrate is identical with the dielectric constant of described second substrate.
Preferably, described first substrate and described second substrate are same substrates.
Preferably, described first radiation fin and described second radiation fin are supported on above mounting surface by supporting construction, do not contact with described mounting surface, described first substrate and described second substrate are described first radiation fin and the air between described second radiation fin and described mounting surface.
Preferably, described communication antenna also comprises cavity, and described first radiant body and described second radiant body are placed in described cavity.
Preferably, described cavity is circular or square metal cavity.
Preferably, packing material is provided with in the space between described cavity and first, second radiant body described.
Preferably, described communication antenna also comprises frequency and selects radome, and it is placed on the electromagnetic wave propagation direction of the reception of described communication antenna and/or transmitting.
Preferably, described frequency select radome and described communication antenna conformal.
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; And communication antenna as above, second end of wherein said power splitter is connected to the first current feed department of described communication antenna via the first feeder line, 3rd end of described power splitter is connected to the second current feed department of described communication antenna via the second feeder line, have phase shift between wherein said first feeder line and described second feeder line.
Preferably, one of them of described first feeder line and described second feeder line comprises 90 ° of phase shifters.
Preferably, the length of described first feeder line and described second feeder line differs 1/4 wavelength to realize 90 ° of phase shifts.
In a further embodiment, the utility model provides a kind of communication equipment, comprises communication antenna as above, and/or antenna system as above.
The utility model, owing to adopting above technical scheme, makes it compared with prior art, at least has following remarkable advantage:
Communication antenna of the present utility model is made up of two radiant bodies being arranged on same mounting surface, and such planar structure has the low advantage of section, reduces the demand for setting height(from bottom).
The utility model is by making each radiant body realize two-band linear polarization to radiation fin corner cut.Further, by arranging the relative position of two radiant bodies, and there is the excitation of 90 ° of phase shifts to the feeding of two radiant bodies, two spatially mutually orthogonal two-band line polarization waves can be obtained, and then synthesis obtaining two-band circularly polarised wave.This flat plane antenna of the present utility model reduces technique and makes complexity, simplifies design requirement and implementation procedure.
The utility model is concave surface by the radiating surface of each radiation fin making antenna, thus improves the radiation efficiency of communication antenna.Further, by making whole radiation fin be made as concave surface, it can be made conformal with the mounting surface of concave surface fully, meeting miniaturization and the conformalization design requirement of application circumstances further.
Accompanying drawing explanation
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, wherein:
Fig. 1 illustrates the example communication antenna plane figure according to the utility model embodiment.
Fig. 2 illustrates the stereogram of the antenna radiator according to the utility model embodiment.
Fig. 3 A illustrates the example communication antenna plane figure according to the utility model embodiment, and it is with optional cavity and frequently select radome.
Fig. 3 B illustrates the plane graph according to the optional cavity of the another kind of the utility model embodiment.
Fig. 3 C illustrates the decomposing schematic representation of the communication antenna with exemplary cavity and radome according to the utility model embodiment.
Fig. 4 illustrates the schematic diagram of the antenna system according to the utility model 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 of the utility model embodiment.
Fig. 7 illustrates the axial ratio curve chart of the antenna system of 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 plan view (vertical view) according to the example communication antenna of the utility model embodiment.Shown in figure 1, the communication antenna 100 of the present embodiment is made up of the first radiant body 101 and the second radiant body 102, and wherein the first radiant body 101 comprises first substrate 11 and the first radiation fin 12, second radiant body comprises 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 up of electric conducting material, such as, are made of metal.Radiation fin can be patch form, also can be the coating through chemical wet etching.The assembled unit of each radiation fin and substrate forms one and receives and transmit path.First radiation fin has the first current feed department 15, second radiation fin and has the second current feed department 16.First current feed department 15 and the second current feed department 16 can input signal to be sent respectively, or export the signal received.Preferably, the first current feed department 15 and the second current feed department 16 can be coaxial feed portion.
On profile design, first substrate 11 and second substrate 13 are preferably rectangle, certainly, also can be other shapes.First radiation fin 12 and the second radiation fin 14 be preferably as shown in Figure 1 there is corner cut rectangle (that is, rectangular radiation patch certain/some angle or portion of material excised).Certainly can understand, the first radiation fin 12 and the second radiation fin 14 can also be other shapes.But, the first radiation fin 12 and the second radiation fin 14 are preferably shape identical (not considering corner cut), and further, size and second radiation fin 14 of the first radiation fin 12 are preferably measure-alike.When two radiation fins measure-alike, the dielectric constant of two substrates is also identical, and now, first substrate 11 and second substrate 13 can be same substrate.On the other hand, the size of the first radiation fin 12 and the second radiation fin 14 can be different, and now, the dielectric constant of the counterpart substrate of larger-size radiation fin 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 optional embodiment, first substrate 11 and second substrate 12 can not be the dielectrics of entity, but serve as dielectric by air, specifically, supporting construction can be adopted to support on a mounting surface by the first radiation fin 12 and the second radiation fin 14, it is made not contact with mounting surface, but by the air between radiation fin and mounting surface as dielectric.
First radiation fin 12 has corner cut 12a at the first diagonal A two ends and 12b, similar, and the second radiation fin 14 has corner cut 14a at the second diagonal B two ends and 14b.Corner cut can have various form, as size, position, excision angle (that is, the angle at incisxal edge and radiation fin edge) etc.In a preferred embodiment, the communication antenna of the present embodiment is designed to have double frequency transmission and receiving ability.Specifically, by controlling the geometric shape (size, position, excision angle etc. of corner cut) of corner cut, making the first radiation fin 12 and the second radiation fin 14 can realize two-band linear polarization separately, and the frequency range position of two-band can be controlled.In the embodiment shown in fig. 1, the first radiation fin 12 and the second radiation fin 14 are rectangular radiation patch, in hexagon behind two diagonal angles on its each leisure excision diagonal.Preferably, each corner cut 12a, 12b, 14a and 14b angle 35 degree to 55 between choose.More preferably, the angle of each corner cut 12a, 12b, 14a and 14b is 45 degree.Be understandable that, corner cut also can be other angle.Preferably, all corner cut 12a, 12b, 14a are identical with the shape of 14b." angle of corner cut " this statement refer to the incisxal edge and the angle (getting acute angle) of radiation fin rectangular edges that are notched part, for Fig. 1, cut part is right-angled triangle, the hypotenuse of this right-angled triangle is incisxal edge, and namely the angle of the right-angle side of hypotenuse and this right-angled triangle is the angle of corner cut.
As shown in Figure 1, the current feed department 15 of the first radiation fin 12 is arranged in the vertical axis of symmetry of the first radiation fin 12.The current feed department 16 of the second radiation fin 14 is arranged in the horizontal symmetry axis of the second radiation fin 14.Should be noted that shown situation is only the one of multiple possible configuration.Such as, also can be that the first current feed department 15 is arranged in horizontal symmetry axis, the second current feed department 16 be arranged in vertical axis of symmetry.But, usually should get rid of the situation that current feed department 15 and 16 is all arranged on the geometric center of radiation fin.
As shown in Figure 1, the first radiant body 101 and the second radiant body 102 are arranged in same mounting surface.In the context of this application, " in same mounting surface " is intended to contain the situation of two radiant bodies on same geometric surface.But should get rid of two radiant bodies and put situation into lamination, this situation causes the general thickness of antenna to increase, against the designing requirement of miniaturization under some applied environment.
According to embodiment of the present utility model, the radiation fin of the antenna 100 shown in Fig. 1 can be made into and have protruding radiating surface, such design can improve the radiation efficiency of communication antenna 100.Fig. 2 shows the stereogram of the antenna radiator according to this embodiment, and it may correspond to any one in the first radiant body 101 and the second radiant body 102, and as shown in the figure, the radiation fin 201 be arranged on base material 202 has protruding radiating surface.Further, by whole radiant body (comprising the base material 202 of radiation fin 201 and below) is made into convex, communication antenna can be made conformal with the mounting surface of concave surface better, obtain compacter antenna system, thus meet miniaturization and the conformalization design requirement of application circumstances.
When applying excitation by current feed department, each work of the first radiant body 101 and the second radiant body 102 is linearly polarized radiation unit.According to embodiment of the present utility model, in order to realize circular polarization communication antenna, the first radiant body 101 and the second radiant body 102 are put into the second diagonal B of the first diagonal A and the second radiant body 102 making the first radiant body 101 at angle.Preferably, the first diagonal A is mutually vertical with the second diagonal B.Because the first diagonal A and the second diagonal B is angled, the line polarization wave of the first radiant body 101 and the second radiant body 102 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, the linearly polarized wave that the first radiant body 101 and the second radiant body 102 send is orthogonal, and such as, the first radiant body 101 sends horizontal polarized wave, and the second radiant body 102 sends vertically polarized wave, and vice versa.Further, pass through feeding network, make to be fed to the phase shift having 90 ° between the pumping signal of the first radiant body 101 and the pumping signal being fed to the second radiant body 102, this linearly polarized wave phase with one another that the first radiant body 101 and the second radiant body 102 are sent differs 90 °.Now, two amplitudes that the first radiant body 101 and the second radiant body 102 send are equal, phase 90 °, and spatially mutually orthogonal line polarization wave synthesizes circularly polarised wave.
In the example embodiment of Fig. 1, the line polarization wave achieving the first radiant body 101 and the second radiant body 102 with the disposing way that the first diagonal A and the second diagonal B is orthogonal is orthogonal.But, it will be understood by those skilled in the art that, the first radiant body 101 and the second radiant body 102 depend on the concrete geometry of radiation fin 12 and 14, different disposing ways can be taked, as long as can send the line polarization wave of orthogonal space or nearly orthogonal.
First substrate 11 can be made up of identical dielectric substance with second substrate 13.In a further embodiment, 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, and second substrate 13 can be made up of the same dielectric substrate of conductive doped micro-structural (such as, metal micro structure).The dielectric property of the adjustable second substrate 13 of doping of conductive micro structures.
Fig. 3 A illustrates the plane graph of the example communication antenna 300A according to the utility model embodiment, and it selects radome 320a with optional circular cavity 310a and optional frequency.As shown in Figure 3A, communication antenna 100 as shown in Figure 1 can be placed in cavity 310a.The effect of cavity 310a includes but not limited to: make the impact of antenna from surrounding environment and the impact of human users.The material of cavity 310a is not restricted, and is generally metal, but also can be the nonmetallic materials of applicable enforcement demand.The wall of cavity 310a does not contact with antenna radiator usually.Alternatively, the packing material can placing such as foam in cavity 310a is to fill the space between communication antenna and cavity 310a, and air pressure is unstable in use to prevent communication antenna, and meanwhile, packing material also plays better damping and supporting role.Further, frequency can be set above communication antenna 100 and select radome 320a.Frequently radome 320a is selected to be arranged on the electromagnetic wave propagation direction of antenna reception/transmitting.Frequently radome is selected can be set to communication antenna 100 conformal, fully to meet miniaturized requirement.When using cavity 310a, frequently select radome 320a can be arranged to cover the opening of cavity 310a.
Shape for cavity can not be restricted, but carrys out corresponding selection according to applied environment.Such as, except circular cavity, can also square cavity be used, and the cavity of other geometries.Fig. 3 B illustrates the plane graph of the example communication antenna 300B according to the utility model embodiment, and it selects radome 320b with optional square cavity 310b and optional frequency.
Fig. 3 C illustrates the decomposing schematic representation of the communication antenna with exemplary cavity and radome according to the utility model embodiment.Cavity 310 in Fig. 3 C may correspond to the cavity 310a of accompanying drawing 3A, or the cavity 310b of accompanying drawing 3B, or the cavity of other geometries.The frequency that frequency in Fig. 3 C selects radome 320 to may correspond to accompanying drawing 3A selects radome 320a, or the frequency of accompanying drawing 3B selects radome 320b, or the frequency of other geometries selects radome.Communication antenna 100 to be placed in cavity 310, on frequently select radome 320 to be arranged at electromagnetic wave propagation direction that antenna receives/launch, and preferably, covers the opening of cavity 310.
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, one-to-two power splitter 420, first feeder line 430a and the second feeder line 430b, and antenna 440, and it comprises communication antenna as shown in Figure 1, and the installation of necessity and supporting structure.Feed port 410, one-to-two power splitter 420, first feeder line 430a and the second feeder line 430b forms 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 15 of the first radiant body 101 and the second current feed department 16 of the second radiant body 102 respectively.Such as, 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 15 via the first feeder line 430a, and the 3rd end of power splitter 420 is connected to the second current feed department 16 via the second feeder line 430b.
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 15 of the first radiant body 101 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 16 of the second radiant body 102 of communication antenna 100 through the 3rd end (now it is output) and the second feeder line 430b.When carrying out reception work, the two-way Received signal strength received by the first radiant body 101 and the second radiant body 102 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 15 and the second current feed department 16 through the first feeder line 430a and the second feeder line 430b 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).
In the antenna system shown in Fig. 4, one of them of first feeder line 430a and the second feeder line 430b has phase shifter, make the phase place out-phase 90 ° each other of the pumping signal of feed-in first radiant body 101 and the second radiant body 102, thus the circular polarization mode of operation of communication antenna 100 can be realized.In another embodiment, 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.In addition, power splitter 420 can adopt the power splitter of microstrip line merit point mode, to save the weight of space and effective mitigation system.Further, power splitter can remove isolation resistance wherein.
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 101 or 102) that voltage standing wave ratio as shown in Figure 5A 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 circular polarization communication antenna of the utility model above-described embodiment and/or antenna system can be incorporated in communication equipment.
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 communication antenna 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, comprise the first radiant body and the second radiant body, the first radiation fin that described first radiant body comprises first substrate and arranges on the first substrate, described second radiant body comprises second substrate and is arranged on the second radiation fin on second substrate, described first radiant body has the first current feed department, described second radiant body has the second current feed department, described first radiant body and the second radiant body are arranged in same mounting surface, and the radiating surface of described first radiation fin and the second radiation fin is concave surface.
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 mounting surface is concave surface, and described first radiant body and the second radiant body and described mounting surface conformal.
6. communication antenna as claimed in claim 1, it is characterized in that, described first radiation fin and described second radiation fin are the rectangle with corner cut.
7. communication antenna as claimed in claim 6, it is characterized in that, described first radiation fin has two described corner cuts, 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 on the second diagonal of described second radiation fin.
8. communication antenna as claimed in claim 7, it is characterized in that, the position of described first radiation fin and described second radiation fin is put as making described first diagonal and described second diagonal at angle.
9. communication antenna as claimed in claim 7, it is characterized in that, described first radiation fin and the position of described second radiation fin are put as making described first diagonal vertical with described second diagonal.
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, it is characterized in that, described first substrate is made up of dielectric substrate, 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 characterized in that, described first radiation fin is different with the size of described second radiation fin, and the dielectric constant of the counterpart substrate of larger-size radiation fin is less.
15. communication antennas as claimed in claim 1, is characterized in that, described first radiation fin and described second radiation fin measure-alike, and described first substrate is identical with the dielectric constant of described second substrate.
16. communication antennas as claimed in claim 15, is characterized in that, described first substrate and described second substrate are same substrates.
17. communication antennas as claimed in claim 1, it is characterized in that, described first radiation fin and described second radiation fin are supported on above mounting surface by supporting construction, do not contact with described mounting surface, described first substrate and described second substrate are described first radiation fin and the air between described second radiation fin and described mounting surface.
18. communication antennas as claimed in claim 1, is characterized in that, also comprise cavity, described first radiant body and described second radiant body are placed in described cavity.
19. communication antennas as claimed in claim 18, is characterized in that, described cavity is circular or square metal cavity.
20. communication antennas as described in claim 18 or 19, is characterized in that, be provided with packing material in the space between described cavity and first, second radiant body described.
21. communication antennas as claimed in claim 1, is characterized in that, also comprise and frequently select radome, and it is placed on the electromagnetic wave propagation direction of the reception of described communication antenna and/or transmitting.
22. communication antennas as claimed in claim 21, is characterized in that, described frequency select radome and described communication antenna conformal.
23. 1 kinds of antenna systems, comprising:
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, second end of wherein said power splitter is connected to the first current feed department of described communication antenna via the first feeder line, 3rd end of described power splitter is connected to the second current feed department of described communication antenna via the second feeder line
Phase shift is had between wherein said first feeder line and described second feeder line.
24. antenna systems as claimed in claim 23, is characterized in that, one of them of described first feeder line and described second feeder line comprises 90 ° of phase shifters.
25. antenna systems as claimed in claim 23, is characterized in that, the length of described first feeder line and described second feeder line differs 1/4 wavelength to realize 90 ° of phase shifts.
26. 1 kinds of communication equipments, comprise the communication antenna according to any one of claim 1-22, and/or the antenna system according to any one of claim 23-25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520074729.3U CN204407482U (en) | 2015-01-30 | 2015-01-30 | Communication antenna, antenna system and communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520074729.3U CN204407482U (en) | 2015-01-30 | 2015-01-30 | Communication antenna, antenna system and communication equipment |
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| CN204407482U true CN204407482U (en) | 2015-06-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105990647A (en) * | 2015-01-30 | 2016-10-05 | 深圳光启尖端技术有限责任公司 | Antenna, antenna system and communication apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105990647A (en) * | 2015-01-30 | 2016-10-05 | 深圳光启尖端技术有限责任公司 | Antenna, antenna system and communication apparatus |
| CN105990647B (en) * | 2015-01-30 | 2024-03-08 | 深圳光启尖端技术有限责任公司 | Communication antenna, antenna system and communication device |
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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 |