CN204407504U - Communication antenna, antenna system and communication equipment - Google Patents
Communication antenna, antenna system and communication equipment Download PDFInfo
- Publication number
- CN204407504U CN204407504U CN201520075524.7U CN201520075524U CN204407504U CN 204407504 U CN204407504 U CN 204407504U CN 201520075524 U CN201520075524 U CN 201520075524U CN 204407504 U CN204407504 U CN 204407504U
- Authority
- CN
- China
- Prior art keywords
- radiation fin
- radiant body
- current feed
- feed department
- feeder line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
The utility model relates to a kind of communication antenna, antenna system containing this antenna, and the communication equipment containing this antenna, comprise: the 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 the 3rd current feed department; 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 the 4th current feed department, wherein, the radiating surface of the first radiation fin and the radiating surface of the second radiation fin are convex surface, first radiation fin and the second radiation fin have corner cut separately, and the second radiant body and the first radiant body are placed stackedly.
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 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.
In addition, in application scenes, due to the wide-angle axial ratio of antenna under around large-area metal environment and directional diagram deviation in roundness not good, thus wish that antenna has axial ratio and the directional diagram performance of improvement.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of two-band communication antenna, and provides a kind of circular polarization dual-band antenna system further.
For this reason, the utility model provides a kind of communication antenna, the antenna system containing this antenna, and the communication equipment containing this antenna.
This communication antenna that the utility model provides comprises: 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 the 3rd current feed department; 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 the 4th current feed department, wherein, the radiating surface of the first radiation fin and the radiating surface of the second radiation fin are convex surface, first radiation fin and the second radiation fin have corner cut separately, and the second radiant body and the first radiant body are placed stackedly.
According to one side of the present utility model, described first radiant body and described second radiant body realize two-band linear polarization respectively.
According to one side of the present utility model, described first radiant body and described second radiant body are operated in identical two-band.
According to one side of the present utility model, described first radiant body realizes different linear polarization directions from described second radiant body.
According to one side of the present utility model, described first radiant body overlaps with the geometric center of described second radiant body.
According to one side of the present utility model, described first radiation fin and described second radiation fin are the rectangle with corner cut.
According to one side of the present utility model, 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.
According to one side of the present utility model, described first diagonal of described first radiation fin and described second diagonal of described second radiation fin are at angle.
According to one side of the present utility model, described first diagonal of described first radiation fin is mutually vertical with described second diagonal of described second radiation fin.
According to one side of the present utility model, described first current feed department, described second current feed department and described 3rd current feed department, described 4th current feed department are coaxial feed portions.
According to one side of the present utility model, the size of described first radiation fin is greater than the size of described second radiation fin.
According to one side of the present utility model, the dielectric constant of described second substrate is greater than the dielectric constant of first substrate.
According to one side of the present utility model, described first radiant body and the second radiant body are placed in cavity.
According to one side of the present utility model, described cavity is circular cavity or rectangular cavities.
According to one side of the present utility model, described first radiant body and between the second radiant body and described cavity, there is packing material.
According to one side of the present utility model, described first substrate and second substrate are rectangle separately.
According to one side of the present utility model, described first substrate and second substrate are made up of the dielectric substrate doped with conductive micro structures.
According to one side of the present utility model, described first radiant body and described second radiant body are electrically insulated from each other.
According to one side of the present utility model, described first current feed department and described 3rd current feed department are arranged on the first symmetry axis of described first radiation fin, be arranged on the second symmetry axis of described second radiation fin with described second current feed department and described 3rd current feed department, described first symmetry axis is vertical with described second symmetry axis.
According to one side of the present utility model, described first current feed department and described 3rd current feed department to be positioned in described first radiation fin horizontal symmetry axis and Central Symmetry, in the vertical axis of symmetry that described second current feed department and described 4th current feed department are positioned at described second radiation fin and Central Symmetry.
According to one side of the present utility model, described first radiation fin is arranged on described first substrate, and described second radiation fin is arranged on described second substrate, and described second substrate is arranged on described first radiation fin.
According to one side of the present utility model, also comprise and frequently select radome, described frequency selects radome to be arranged in the radiation direction of described communication antenna.
This antenna system that the utility model provides comprises: feed port, power splitter, the first input end of described power splitter is connected with described feed port, and the communication antenna according to any one of claim 1 to 21, wherein, described power splitter is one point of four power splitter, first output of described power splitter is connected to described second current feed department by the first feeder line, second output of described power splitter is connected to described first current feed department by the second feeder line, described power splitter the 3rd output is connected to described 4th current feed department by the 3rd feeder line, and described power splitter the 4th output is connected to described 3rd current feed department by the 4th feeder line, wherein said first feeder line, described second feeder line, phase shift is had between described 3rd feeder line and described 4th feeder line.
According to one side of the present utility model, also be provided with phase shifter between described power splitter and described communication antenna, described phase shifter makes described second feeder line, the 3rd feeder line and the 4th feeder line relative to described first feeder line respectively in 90 °, 180 °, 270 ° phase shifts.
According to one side of the present utility model, the length of described second feeder line, described 3rd feeder line and described 4th feeder line differs 1/4,1/2,3/4 wavelength respectively compared with the length of described first feeder line.
This communication apparatus that the utility model provides 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 two radiant bodies being arranged on Different Plane with overlapped way, can reduce volume and the size of communication antenna.By the radiating surface making each radiant body of antenna possess convex surface, can radiation efficiency be improved, 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 arranged on the phase shift between the pumping signal of four current feed departments on two radiant bodies by the relative position and feed-in arranging two radiant bodies, 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.In addition, by being arranged on four current feed departments on two radiant bodies, the wide-angle axial ratio of antenna can also being optimized and improve directional diagram deviation in roundness.
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, the wide-angle axial ratio of antenna can be optimized simultaneously and improve directional diagram deviation in roundness, can be widely used in measuring and communication every field.
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 perspective view of the communication antenna according to the utility model embodiment.
Fig. 2 illustrates the plane graph of the example communication antenna structure according to the utility model embodiment.
Fig. 3 illustrates the plane graph of the example communication antenna structure according to the utility model embodiment, and it is with optional cavity and frequently select radome.
Fig. 4 illustrates the structural representation 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 perspective view of a kind of micro-band communication antenna schematic diagram according to the utility model embodiment.Fig. 2 illustrates the plane graph of the example communication antenna structure according to the utility model embodiment.Shown in figure 1 and Fig. 2, the communication antenna 200 of the present embodiment is made up of the first radiant body 201 and the second radiant body 202, and wherein the first radiant body 201 comprises first substrate 21 and the first radiation fin 22, second radiant body comprises second substrate 23 and the second radiation fin 24.First radiant body 201 and the second radiant body 202 are arranged in different mounting surface.Such as, the first radiant body 201 and the second radiant body 202 can be placed by overlapped way.Particularly, can the first radiation fin 22 be arranged on first substrate 21, the second radiation fin 24 is arranged on second substrate 23, and second substrate 23 is arranged on the first radiation fin 22, form laminated construction in this way.Preferably, the first radiant body 201 overlaps with the geometric center of the second radiant body 202.Adopt laminated construction, can Reduced Design structure, simplify manufacturing process and save space, realizing miniaturized further.
Substrate is made up of the dielectric substrate doped with conductive micro structures.Radiation fin is made up of electric conducting material, such as, is made of metal.Radiation fin can be patch form, also can be the coating through chemical wet etching.The geometry of the first radiation fin 24 is not restricted, and example is square in the present embodiment, as an alternative, also can be rectangle or other shapes.The geometry of the second radiation fin 24 is not also restricted, but is usually chosen for consistent with the first radiation fin 22 (comprising identical and symmetrical situation).
First radiation fin 22 has the first current feed department 25 and the 3rd current feed department 27, second radiation fin 24 has the second current feed department 26 and the 4th current feed department 28.First current feed department 25, the 3rd current feed department 27 and the second current feed department 26, the 4th current feed department 28 can input signal to be sent respectively, or export the signal received.Preferably, the first current feed department 25, the 3rd current feed department 27 and the second current feed department 26, the 4th current feed department 28 can be coaxial feed portion.Adopt the mode of coaxial feed, reduce the interference of feed structure.First current feed department 25 and the 3rd current feed department 27 are arranged on the first symmetry axis of the first radiation fin, and the second current feed department 26 and the 4th current feed department 28 are arranged on the second symmetry axis of the second radiation fin, and the first symmetry axis is vertical with described second symmetry axis.Such as, on the first current feed department 25 and the 3rd current feed department 27 horizontal symmetry axis X1 that is positioned at the first radiation fin 22 or vertical axis of symmetry Y1.On the horizontal symmetry axis X2 that second current feed department 26 and the 4th current feed department 28 are positioned at the second radiation fin 24 or vertical axis of symmetry Y2.Shown in figure 2, for simplicity, on the horizontal symmetry axis X1 that first current feed department 25 and the 3rd current feed department 27 are positioned at the first radiation fin 22 and Central Symmetry, and the second current feed department 26 and the 4th current feed department 28 be positioned at the second radiation fin 24 vertical axis of symmetry Y2 on and Central Symmetry.Notably, the position of the current feed department of four shown in figure 25,26,27 and 28 is schematic, embodiment of the present utility model does not limit the first current feed department 25 and the 3rd current feed department 27 and the second current feed department 26 and the relative position of the 4th current feed department 28 on horizontal plane (paper in Fig. 2), as long as the first current feed department 25, the 3rd current feed department 27, second current feed department 26 and the 4th current feed department 28 can draw transmission line (not shown) separately in engineering.In addition, embodiment of the present utility model does not limit the center that the first current feed department 25 and the 3rd current feed department 27 and the second current feed department 26 and the 4th current feed department 28 are in the first radiation fin 22 and the second radiation fin 24 respectively.The mutual alignment relation that the utility model also contemplates on the first current feed department 25 and the 3rd current feed department 27 and the second current feed department 26 and its radiation fin of each leisure of the 4th current feed department 28 can change, namely, the line of the first current feed department 25 and the 3rd current feed department 27 can depart from the center of the first radiation fin 22, and the line of the second current feed department 26 and the 4th current feed department 28 can depart from the center of the second radiation fin 24.In addition, to also contemplate these four current feed department relative positions constant but can overall offset for the utility model.
As shown in Figure 1, 2, preferably, the size of the first radiation fin 22 is greater than the size of the second radiation fin 24.Fig. 2 illustrates that the size of the first radiation fin 22 is greater than the size of the second radiation fin 24 with the example making the second radiation fin 24 not block the first radiation fin 22.In addition, preferably, the dielectric constant of the material of second substrate 23 is greater than the dielectric constant of first substrate 21.The size of the first radiation fin 22 is made to be greater than the second radiation fin 24 and the dielectric constant of second substrate 23 is greater than the dielectric constant of first substrate 21.
First radiation fin 22 and the second radiation fin 24 can have corner cut separately, namely excise radiation fin certain/some angle or portion of material.Make the first radiation fin and the second radiation fin realize two-band linear polarization separately by the geometric shape (size, position, excision angle etc. of corner cut) controlling corner cut, and the frequency range position of two-band can be controlled.In one embodiment, the first radiation fin 22 and the second radiation fin 24 are rectangular radiation patch, in hexagon behind two diagonal angles on its each leisure excision diagonal.Such as, the first radiation fin 22 has corner cut 22a in the first diagonal A both sides and 22b, and similar, the second radiation fin 24 has at the second diagonal B both sides corner cut 24a and 24b.In a preferred embodiment, preferably, each corner cut 22a, 22b, 24a and 24b angle 35 degree to 55 between choose.More preferably, the angle of each corner cut 22a, 22b, 24a and 24b is 45 degree.Be understandable that, corner cut also can be other angle.Preferably, all corner cut 22a, 22b, 24a are identical with the shape of 24b.
When applying excitation by feed port, each work of the first radiant body 201 and the second radiant body 202 is linearly polarized radiation unit.According to embodiment of the present utility model, the first radiant body 201 and the second radiant body 202 are put and makes the first diagonal A and the second diagonal B at angle.Preferably, the first radiant body 201 and the second radiant body 202 are put and are made the first diagonal A and the second diagonal B orthogonal.Be appreciated that in other embodiments of the present utility model, the first radiation fin 22 and respective two corner cuts of the second radiation fin 24 can not be on the diagonal.By controlling the corner cut of the first radiation fin 22 and the second radiation fin 24, the first radiant body 201 and the second radiant body 202 separately can transmitting/receiving two-band linear polarization signals, and the first radiant body 201 and the second radiant body 202 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 201 and the second radiant body 202 can form elliptical polarization or circular polarization radiation signal when there being phase shift each other.Especially when the first diagonal A at corner cut place is vertical with the 2nd B, two linear polarizations can be made to be in orthogonal state, that is, one is horizontal polarization, and one is perpendicular polarization, thus forms good circular polarization radiation signal.
Further, by feeding network, between four pumping signals making to be fed to four current feed departments, there are 90 ° of phase shifts.For example, to be fed to the pumping signal of the second current feed department 26 of the second radiant body 202 for reference 0 ° of phase place, first current feed department 25 has 90 ° of phase shifts relative to the second current feed department 26,4th current feed department 28 has 180 ° of phase shifts relative to the second current feed department 26, and the 3rd current feed department 27 has 270 ° of phase shifts relative to the second current feed department 26.When applying excitation by current feed department, each work of the first radiant body 201 and the second radiant body 202 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 201 and the second radiant body 202 being put into and makes the first diagonal A and the second diagonal B orthogonal.Like this be arranged so that the linearly polarized wave that the first radiant body 201 and the second radiant body 202 send is orthogonal, such as, the first radiant body 201 sends horizontal polarized wave, and the second radiant body 202 sends vertically polarized wave, and vice versa.Further, pass through feeding network, make to be fed to the phase shift having 90 ° or 270 ° between the pumping signal of the first radiant body 201 and the pumping signal being fed to the second radiant body 202, this linearly polarized wave phase with one another that the first radiant body 201 and the second radiant body 202 are sent differs 90 °.The amplitude that first radiant body 201 and the second radiant body 202 send is equal, phase 90 °, and spatially mutually orthogonal line polarization wave synthesizes circularly polarised wave.
In the example embodiment of Fig. 1 and 2, the line polarization wave achieving the first radiant body 201 and the second radiant body 202 with the disposing way that the first diagonal A and the second diagonal B is orthogonal is orthogonal.But, it will be appreciated by persons skilled in the art that the concrete geometry depending on radiation fin 22 and 24, different disposing ways can be taked, as long as the first radiant body 201 and the second radiant body 202 can send the line polarization wave of orthogonal space.
In order to improve radiation efficiency further and meet miniaturization and the conformalization design requirement of application circumstances, the first radiant body 201 and the second radiant body 202 can be made into by embodiment of the present utility model has convex surface.Such as, first substrate 21 and second substrate 23 are made into there is convex surface, then coplanar radiation fin 22 and 24 is set thereon.Fit because of its similar 3D shape between these structure sheafs.
Communication antenna 200 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 22 and the second radiation fin 24, each radiation fin can realize two-band linear polarization, and can the working frequency range of control on demand first radiation fin 22 and the second radiation fin 24 and linear polarization direction, thus a communication antenna 200 can be adopted to realize dual-linear polarization two-band.In addition, by being arranged on four current feed departments on two radiant bodies, the wide-angle axial ratio of antenna can being optimized and improve directional diagram deviation in roundness.
Fig. 3 illustrates the plane graph of the example communication antenna structure according to the utility model embodiment, and it is with optional cavity 300 and frequently select radome 310.As shown in Figure 3, the communication antenna 200 described in composition graphs 2 can be placed in cavity 300.Wherein cavity 300 is in the radiation direction upper shed of communication antenna 100.The effect of cavity 300 includes but not limited to: supporting communication antenna 200, make the impact of communication antenna from surrounding environment and the impact etc. of manual operation.The shape of cavity 300 is not restricted, and can be rectangle, square, also can be circular.The shape of cavity 300 can be corresponding with the shape of the first radiant body and the second radiant body, also can not be corresponding.Such as, the first radiant body and the second radiant body can be rectangles, and cavity 300 is also rectangle.And for example, the first radiant body and the second radiant body can be rectangles, and cavity 300 can be circular.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 200 does not preferably contact the sidewall of cavity 300.Alternatively, between cavity 300 and communication antenna 200, 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 201 of communication antenna 200 and the second radiant body 202 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 200.Radome 310 can be fixed to the substrate of communication antenna 200, 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 200, and preferably has good wave penetrate capability, thus does not affect the signal radiation/reception of communication antenna 200.
In a further embodiment, radome 310 can be frequently select radome 310.Frequently select radome 310 to have good wave penetrate capability and the electromagnetic response of expection can be produced, 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 feed port 410, one point of four power splitter 420, first feeder line 430a, the second feeder line 430b, the 3rd feeder line 430c and the communication antenna 200 described in the 4th feeder line 430d and Fig. 2 of front end.The feeding network of antenna system comprises: feed port 410, one point of four power splitter 420, first feeder line 430a, the second feeder line 430b, the 3rd feeder line 430c and the 4th feeder line 430d.Wherein, the first feeder line 430a and the 3rd feeder line 430c feed-in second current feed department 26 and the 4th current feed department 28, second feeder line 430b and the 4th feeder line 430d feed-in first current feed department 25 and the 3rd current feed department 27 respectively respectively.Wherein the first feeder line 430a, the second feeder line 430b, have phase shift between the 3rd feeder line 430c and the 4th feeder line 430d.
In one embodiment, by being arranged on power splitter 420 and the phase shifter (not shown) of communication antenna 200, the second feeder line 430b, the 3rd feeder line 430c and the 4th feeder line 430d can be made relative to the first feeder line 430a respectively in 90 °, 180 °, 270 ° phase shifts.By making to be fed to the phase 180 ° of the first current feed department 25 of the first radiant body 201 and the pumping signal of the 3rd current feed department 27, to be fed to the phase 180 ° of the second current feed department 26 of the second radiant body 202 and the pumping signal of the 4th current feed department 28, realize the circular polarization mode of operation of antenna.To sum up, communication antenna 200 can realize dual-linear polarization two-band by the first stacked radiant body 201 and the second radiant body 202.Differ 90 ° respectively by making the phase place of feed-in second current feed department 26, first current feed department 25, the 4th current feed department 28 and the 3rd current feed department 27 pumping signal and can form circular polarization radiation signal.Therefore, antenna system of the present utility model can realize two-band circular polarization.In addition, and only arrange compared with a current feed department on each radiation fin, the utility model is improved wide-angle axial ratio by employing four current feed departments and is improve directional diagram performance.
In one embodiment, by making the length of the second feeder line, the 3rd feeder line and the 4th feeder line differ 1/4,1/2,3/4 wavelength respectively compared with the length of the first feeder line, realize the phase place of signal after being conveyed through these feeder lines different.
In addition, power splitter 420 can adopt microstrip line merit point mode, to save the weight of space and effective mitigation system.
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 200 (or one of them radiant body 201 or 202) 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 200 (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 illustrates the gain curve figure of the antenna system of the utility model embodiment, and wherein transverse axis is the angle of pitch (degree), and the longitudinal axis is far gain.As shown in the figure, in ± 50 ° of pitch range, good gain is realized according to example embodiment communication antenna of the present utility model.
Fig. 7 illustrates the axial ratio curve chart of the antenna system of the utility model embodiment, and wherein transverse axis is azimuth (degree), and the longitudinal axis is far field axial ratio.Axial ratio characterizes the degree of antenna circular polarization.As shown in the figure, according to the communication antenna of example embodiment of the present utility model in ± 50 ° of azimuth coverages, realize axial ratio and be less than or equal to 5, reached 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, the pumping signal each other phase shift 90 ° of antenna system of the present utility model by making feed-in be arranged on four current feed departments on two radiant bodies, 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.In addition, the utility model can be improved wide-angle axial ratio by employing four current feed departments and be improve directional diagram performance.
The 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 of the utility model embodiment is more extensive, can be applied to the field such as mobile communication, satellite navigation.
The antenna that the utility model provides comprises two radiant bodies being arranged on Different Plane with overlapped way, by arranging the phase shift between the relative position of two radiant bodies and four feeder lines, circular polarization and two-band can be realized, and the wide-angle axial ratio of antenna can be optimized and improve directional diagram deviation in roundness.In addition, and by making each radiant body of antenna possess convex shape, can radiation efficiency be improved, and meet miniaturization and the conformalization design requirement of application circumstances further.Adopt laminated construction, can Reduced Design structure, simplify manufacturing process and save space, realizing miniaturized further.
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 the 3rd current feed department; 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 the 4th current feed department,
Wherein, the radiating surface of the first radiation fin and the radiating surface of the second radiation fin are convex surface, and the first radiation fin and the second radiation fin have corner cut separately, and the second radiant body and the first radiant body are placed 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 radiant body overlaps with the geometric center of described second radiant body.
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 corner cuts on the first diagonal, and described second radiation fin has two corner cuts on the second diagonal.
8. communication antenna as claimed in claim 7, 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.
9. communication antenna as claimed in claim 8, 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.
10. micro-band communication antenna as claimed in claim 1, is characterized in that, described first current feed department, described second current feed department and described 3rd current feed department, described 4th current feed department are coaxial feed portions.
11. 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.
12. communication antennas as claimed in claim 11, it is characterized in that, the dielectric constant of described second substrate is greater than the dielectric constant of first substrate.
13. 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.
14. communication antennas as claimed in claim 1, it is characterized in that, described cavity is circular cavity or rectangular cavities.
15. communication antennas as claimed in claim 14, is characterized in that, described first radiant body and have packing material between the second radiant body and described cavity.
16. communication antennas as claimed in claim 1, is characterized in that, described first substrate and second substrate are rectangle separately.
17. communication antennas as claimed in claim 1, it is characterized in that, described first substrate and second substrate are made up of the dielectric substrate doped with conductive micro structures.
18. 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.
19. communication antennas as claimed in claim 1, it is characterized in that, wherein, described first current feed department and described 3rd current feed department are arranged on the first symmetry axis of described first radiation fin, be arranged on the second symmetry axis of described second radiation fin with described second current feed department and described 3rd current feed department, described first symmetry axis is vertical with described second symmetry axis.
20. communication antennas as claimed in claim 1, it is characterized in that, wherein, described first current feed department and described 3rd current feed department to be positioned in described first radiation fin horizontal symmetry axis and Central Symmetry, in the vertical axis of symmetry that described second current feed department and described 4th current feed department are positioned at described second radiation fin and Central Symmetry.
21. communication antennas as claimed in claim 1, it is characterized in that, described first radiation fin is arranged on described first substrate, and described second radiation fin is arranged on described second substrate, and described second substrate is arranged on described first radiation fin.
22. communication antennas as claimed in claim 1, is characterized in that, also comprise and frequently select radome, described frequency selects radome to be arranged in the radiation direction of described communication antenna.
23. 1 kinds of antenna systems, is characterized in that, comprising:
Feed port;
Power splitter, the first input end of described power splitter is connected with described feed port; And
Communication antenna according to any one of claim 1 to 22,
Wherein, described power splitter is one point of four power splitter, first output of described power splitter is connected to described second current feed department by the first feeder line, second output of described power splitter is connected to described first current feed department by the second feeder line, described power splitter the 3rd output is connected to described 4th current feed department by the 3rd feeder line, and described power splitter the 4th output is connected to described 3rd current feed department by the 4th feeder line, wherein said first feeder line, described second feeder line, phase shift is had between described 3rd feeder line and described 4th feeder line.
24. antenna systems as claimed in claim 23, it is characterized in that, also be provided with phase shifter between described power splitter and described communication antenna, described phase shifter makes described second feeder line, the 3rd feeder line and the 4th feeder line relative to described first feeder line respectively in 90 °, 180 °, 270 ° phase shifts.
25. antenna systems as claimed in claim 23, is characterized in that, the length of described second feeder line, described 3rd feeder line and described 4th feeder line differs 1/4,1/2,3/4 wavelength respectively compared with the length of described first feeder line.
26. 1 kinds of communication equipments, is characterized in that, comprise the communication antenna according to any one of claim 1 to 22 or the antenna system according to any one of claim 23 to 25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520075524.7U CN204407504U (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 |
|---|---|---|---|
| CN201520075524.7U CN204407504U (en) | 2015-01-30 | 2015-01-30 | Communication antenna, antenna system and communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204407504U true CN204407504U (en) | 2015-06-17 |
Family
ID=53431341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520075524.7U Active CN204407504U (en) | 2015-01-30 | 2015-01-30 | Communication antenna, antenna system and communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204407504U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016119727A1 (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 |
| 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 |
| CN105990659A (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 |
-
2015
- 2015-01-30 CN CN201520075524.7U patent/CN204407504U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016119727A1 (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 |
| 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 |
| CN105990659A (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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20130300602A1 (en) | Antenna arrays with configurable polarizations and devices including such antenna arrays | |
| Ojaroudiparchin et al. | 8× 8 planar phased array antenna with high efficiency and insensitivity properties for 5G mobile base stations | |
| CN101740870A (en) | Miniaturized single feed point dual-frequency and dual-polarization microstrip antenna | |
| CN102610909A (en) | Single-fed dual-bandwidth wave beam circular polarization antenna | |
| CN204407501U (en) | Communication antenna, antenna system and communication apparatus | |
| CN204407504U (en) | Communication antenna, antenna system and communication equipment | |
| CN110911812A (en) | Dual-polarization 5G millimeter wave antenna unit and array thereof | |
| Syrytsin et al. | Circularly polarized planar helix phased antenna array for 5G mobile terminals | |
| CN204407502U (en) | Microstrip antenna, antenna system and communication equipment | |
| CN204538229U (en) | Communication antenna, antenna system and communication equipment | |
| CN204538230U (en) | Communication antenna, antenna system and communication equipment | |
| CN204407493U (en) | Communication antenna, antenna system and communication apparatus | |
| US20140191914A1 (en) | Multi-channel antenna device | |
| CN204407496U (en) | Microstrip antenna, antenna system and communication equipment | |
| CN105990658A (en) | Communication antenna, antenna system and communication device | |
| CN105990666A (en) | Communication antenna, antenna system and communication device | |
| CN211126039U (en) | Dual-polarization 5G millimeter wave antenna unit and array thereof | |
| Baharom et al. | Multiple-element PIFA MIMO antenna system design for future 5G wireless communication applications | |
| KR100981664B1 (en) | Dual band circularly polarized microstrip antenna | |
| CN111162379B (en) | Polarization adjustable antenna array based on double-layer patch antenna | |
| CN204407497U (en) | Antenna, antenna system and communication equipment | |
| CN204407483U (en) | Communication antenna, antenna system and communication equipment | |
| CN210182583U (en) | Wave beam switchable antenna for mobile satellite | |
| CN204407478U (en) | Communication antenna, antenna system and communication equipment | |
| CN105990661A (en) | Communication antenna, antenna system and communication device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151118 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 |