CN204407492U - Antenna, antenna system and communication equipment - Google Patents
Antenna, antenna system and communication equipment Download PDFInfo
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- CN204407492U CN204407492U CN201520069606.0U CN201520069606U CN204407492U CN 204407492 U CN204407492 U CN 204407492U CN 201520069606 U CN201520069606 U CN 201520069606U CN 204407492 U CN204407492 U CN 204407492U
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Abstract
The utility model provides a kind of antenna, antenna system and communication equipment.This antenna comprises first substrate, second substrate, the first radiation fin and the second radiation fin, this first radiation fin is arranged on this first substrate, this second substrate is arranged on this first radiation fin, this second radiation fin is arranged on this second substrate, all be provided with lug boss in the edge of this first radiation fin and this second radiation fin, and this first radiation fin and this second radiation fin comprise the first current feed department and the second current feed department respectively.Described antenna system comprises above-mentioned antenna, and described communication equipment comprises above-mentioned antenna system.
Description
Technical field
The utility model relates to wireless communication field, especially relates to a kind of antenna, and uses antenna system and the communication equipment of this antenna.
Background technology
Antenna is that one is used for launching or receiving electromagnetic electronic device.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.
But, in current prior art, when needs multiband (such as, two-band) antenna or multiband circular polarized antenna time, normally realize different frequency ranges respectively by multiple feed port and multiple antenna, in this case, the output of a usual feed port needs a whole set of signal processing apparatus follow-up to process, also need multiple antenna to respond the aerial signal of different frequency range, so, if will multiband be realized in prior art, high-gain and circular polarization just certainly will increase the quantity of antenna, if but the quantity increasing antenna will cause the mutual interference between multiple antenna strengthen and then affect the performance of circular polarization, also can cause the complex structural designs between multiple antenna simultaneously, and then cause final antenna size to become large, therefore, how to realize making antenna have multiband, circular polarization, miniaturized, the advantages such as wide covering are the problems that industry needs solution badly always.
Utility model content
Below provide the brief overview of one or more aspect to provide the basic comprehension to these aspects.Detailed the combining of this not all aspect contemplated of general introduction is look at, and both not intended to be pointed out out the scope of key or decisive any or all aspect of elements nor delineate of all aspects.Its unique object is the sequence that some concepts that will provide one or more aspect in simplified form think the more detailed description provided after a while.
According to one side of the present utility model, provide a kind of antenna, comprise first substrate, second substrate, the first radiation fin and the second radiation fin, this first radiation fin is arranged on this first substrate, this second substrate is arranged on this first radiation fin, this second radiation fin is arranged on this second substrate, is all provided with lug boss in the edge of this first radiation fin and this second radiation fin, and this first radiation fin and this second radiation fin comprise the first current feed department and the second current feed department respectively.
In one example, this first radiation fin and this second radiation fin are circle.
In one example, this first radiation fin is provided with two these lug bosses, and two these boss in this first radiation fin circumferentially and symmetrical about the center of circle, wherein, this lug boss from the circumference at place towards the direction radial protrusion away from the center of circle.
In one example, this first substrate is rectangle, and the projection of the center of circle of this first radiation fin on this first substrate and the center superposition of this first substrate.
In one example, on this first radiation fin, the line of two lug bosses drops on a diagonal of this first substrate.
In one example, this second radiation fin is provided with two these lug bosses, and two these boss in this second radiation fin circumferentially and symmetrical about the center of circle, wherein, this lug boss from the circumference at place towards the direction radial protrusion away from the center of circle.
In one example, this second substrate is rectangle, and the projection of the center of circle of this second radiation fin on this second substrate and the center superposition of this second substrate.
In one example, on this second radiation fin, the line of two lug bosses drops on a diagonal of this second substrate.
In one example, on this first radiation fin, the line of two these lug bosses intersects mutually with the line of two these lug bosses on this second radiation fin.
In one example, in the horizontal symmetry axis that this first current feed department is positioned at this first radiation fin or vertical axis of symmetry, in the horizontal symmetry axis that this second current feed department is positioned at this second radiation fin or vertical axis of symmetry.
In one example, this first current feed department and this second current feed department are coaxial feed portion.
In one example, this first current feed department and this second current feed department are electrically insulated.
In one example, the size of this second radiation fin is less than the size of this second substrate, and the size of this first radiation fin is less than the size of this first substrate, and the size of this first radiation fin is greater than the size of this second radiation fin.
In one example, this first substrate, second substrate, the first radiation fin and the second radiation fin are flat shape.
In one example, the projection of the center of circle on this first radiation fin of this second radiation fin overlaps with the center of circle of this first radiation fin, and the horizontal symmetry axis of this second radiation fin and the projection of vertical axis of symmetry on this first radiation fin overlap with the horizontal symmetry axis of this first radiation fin and vertical axis of symmetry respectively.
In one example, this first substrate, second substrate, the first radiation fin and the second radiation fin are convex surface or concave.
In one example, this first substrate, second substrate, the first radiation fin are all identical with the curvature of the second radiation fin.
In one example, man-made microstructure is placed with in the inner horizontal direction of this first substrate or vertical direction.
In one example, man-made microstructure is placed with in the inner horizontal direction of this second substrate or vertical direction.
In one example, the shape of this man-made microstructure comprises I-shaped or cross or snowflake shape or disconnection hollow.
According to another aspect of the present utility model, provide a kind of antenna system, comprise feed port, antenna and mixer, this antenna is described antenna, the first end of this mixer connects this feed port, second end of this mixer connects this first current feed department, this second current feed department of the three-terminal link of this mixer.
According to one side more of the present utility model, provide a kind of communication equipment comprising described antenna system.
Antenna of the present utility model adopts the first stacked radiation fin and the second radiation fin, can reduce volume and the size of antenna.Antenna of the present utility model, by being all provided with lug boss in the edge of the first radiation fin and the second radiation fin and designing the appropriate position of described lug boss, can make these two radiation fins to realize circular polarization separately and not need the cooperation by other radiation fins.This individual antenna of the present utility model just can realize the technical scheme of circular polarization, jointly coordinate compared to needing multiple antenna in prior art and realize circular polarization, clearly there is the advantage of low cost, and structural design is simple, does not need the labyrinth of multiple antenna to design.Meanwhile, the utility model, by design lug boss and appropriate position thereof, can make this antenna can realize multiband, circular polarization, miniaturization, wide covering etc.
Accompanying drawing explanation
After the detailed description of reading embodiment of the present disclosure in conjunction with the following drawings, above-mentioned feature and advantage of the present utility model can be understood better.In the accompanying drawings, each assembly is not necessarily drawn in proportion, and the assembly with similar correlation properties or feature may have identical or close Reference numeral.
What Fig. 1 illustrated the antenna of the utility model one embodiment looks squarely schematic diagram;
Fig. 2 illustrates the schematic top plan view of the antenna of the utility model one embodiment;
Fig. 3 illustrates the current feed department schematic diagram of the antenna of the utility model one embodiment;
Fig. 4 illustrates the structural representation of the antenna system of the utility model one embodiment;
Fig. 5 illustrates the voltage standing wave ratio curve chart of the antenna of the utility model embodiment;
Fig. 6 a, 6b illustrate the gain curve figure of the antenna of the utility model embodiment;
Fig. 7 a, 7b illustrate the axial ratio curve chart of the antenna of the utility model embodiment.
For clarity sake, the brief description of Reference numeral is below provided:
10: antenna
11: first substrate 12: second substrate 13: the first radiation fin 14: the second radiation fin
15a, 15b: lug boss 16a, 16b: lug boss 17: the first current feed department 18: the second current feed department
20: mixer 30: feed port
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.Note, the aspects described below in conjunction with the drawings and specific embodiments is only exemplary, and should not be understood to carry out any restriction to protection range of the present utility model.
What Fig. 1 illustrated the antenna of the utility model one embodiment looks squarely schematic diagram.Fig. 2 illustrates the schematic top plan view of the antenna of the utility model one embodiment.Shown in figure 1 and Fig. 2, the antenna 10 of the present embodiment can comprise first substrate 11, second substrate 12, first radiation fin 13 and the second radiation fin 14.First radiation fin 13 is arranged on first substrate 11.Second radiation fin 14 is arranged on second substrate 12.First substrate 11 and second substrate 12 are made up of dielectric substrate.First radiation fin 13 and the second radiation fin 14 are by electric conducting material, and such as metal is made.Radiation fin can be patch form, also can be the coating through chemical wet etching.This assembled unit of substrate of each radiation fin and correspondence thereof forms one and receives and transmit path.In the present embodiment, two assembled units are combined into antenna in superimposed mode further.In other words, second substrate 12 is arranged on the first radiation fin 13.Antenna of the present utility model adopts the first stacked radiation fin and the second radiation fin, can reduce volume and the size of antenna.
In the present embodiment, in order to realize the circular polarization of antenna, adopting the method for geometry perturbation to implement, utilizing degenerate mode to be separated the degenerate mode work of the phase difference 90 ° of unit's generation two orthogonal polarizations.On concrete structure, the first radiation fin 13 has lug boss 15a and 15b in edge.Similarly, the second radiation fin 14 has lug boss 16a and 16b in edge.The advantage being realized circular polarization by the method for geometry perturbation is, the first radiation fin 13 and the second radiation fin 14 only can have a current feed department.
Shown in figure 3, the first radiation fin 13 has the first current feed department 17, second radiation fin 14 and has the second current feed department 18.First current feed department 17 and the second current feed department 18 can input signal to be sent respectively, or export the signal receiving and received.
On the horizontal symmetry axis X1 that first current feed department 17 needs to be positioned at the first radiation fin 13 or vertical axis of symmetry Y1.On the horizontal symmetry axis X2 that second current feed department 18 needs to be positioned at the second radiation fin 14 or vertical axis of symmetry Y2.Shown in figure 3, as particular instance, horizontal symmetry axis X1, X2 are located along the same line, and vertical axis of symmetry Y1, Y2 are located along the same line.In other words, the projection of central point (being the center of circle in the drawings) on the first radiation fin 13 of the second radiation fin 14 overlaps with the central point (being the center of circle in the drawings) of the first radiation fin 13, and the horizontal symmetry axis of the second radiation fin 14 and the projection of vertical axis of symmetry on the first radiation fin 13 overlap with the horizontal symmetry axis of the first radiation fin 13 and vertical axis of symmetry respectively.First current feed department 17 is positioned on the vertical axis of symmetry Y1 of the first radiation fin 13, and the second current feed department 18 is positioned on the horizontal symmetry axis X2 of the second radiation fin 14.In addition, embodiment of the present utility model does not limit the first current feed department 17 and the relative position of the second current feed department 18 on horizontal plane (paper in Fig. 3), as long as the first current feed department 17 and the second current feed department 18 can draw transmission line (not shown) separately in engineering.
On profile design, first substrate 11 and second substrate 12 are preferably rectangle, certainly, also can be other shapes.First radiation fin 13 and the second radiation fin 14 preferably have the circle of lug boss.Certainly can understand, the first radiation fin 14 and the second radiation fin 14 can also be his shapes.But, to be preferably shape identical for the first radiation fin 13 and the second radiation fin 14.More preferably, the size of the first radiation fin 13 is less than the size of first substrate 11, and the size of the second radiation fin 14 is less than the size of second substrate 12.The size of the first radiation fin 13 is more preferably greater than the size of the second radiation fin 14, thus with guarantee signal that the first radiation fin 13 gives off not block by the second radiation fin 14 of being located thereon, Fig. 1 illustrates that the size of the first radiation fin 13 is greater than the example of the size of the second radiation fin 14.
Further, man-made microstructure can be had, such as conductive micro structures in first substrate 11 and second substrate 12.Man-made microstructure in substrate can be have 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 man-made microstructure in substrate, the dielectric constant of substrate can be changed, thus be applicable to providing the substrate with differing dielectric constant.As particular instance, the hollow that the shape of man-made microstructure can comprise I-shaped, cross, snowflake shape or disconnect.Dimensionally, the thickness of first substrate 11 can be less than the thickness of second substrate 12.
In this example, lug boss 15a, 15b of first radiation fin 13 are positioned at the first radiation fin 13 circumferentially, and these two lug bosses are symmetrical about the center of circle of the first radiation fin 13, wherein lug boss 15a, 15b is protruding towards the direction away from the center of circle diametrically from the circumference at place.Lug boss 16a, 16b of second radiation fin 14 are positioned at the first radiation fin 14 circumferentially, and these two lug bosses are symmetrical about the center of circle of the first radiation fin 14, and wherein lug boss 16a, 16b is protruding towards the direction away from the center of circle diametrically from the circumference at place.In example shown in the figure, the projection of the center of circle on first substrate 11 of the first radiation fin 13 and the center superposition of first substrate 11, and the line of two lug bosses 15a, 15b on the first radiation fin 13 drops on a diagonal of first substrate 11; On the other hand, the projection of the center of circle on second substrate 12 of the second radiation fin 14 and the center superposition of second substrate 12, and on the second radiation fin 14, the line of two lug bosses 16a, 16b drops on a diagonal of second substrate 12.More preferably, the line of lug boss 15a, 15b of the first radiation fin 13 intersects mutually with the line of lug boss 16a, 16b of the second radiation fin 14, more preferably in vertical relation, as shown in the figure.
The antenna of the present embodiment is designed to have double frequency and sends and receiving ability.For this reason, each current feed department is electrically insulated, and to be input in respective unit by frequency band signals to be sent respectively, or is exported from respective unit by the signal received.
Preferably, the first current feed department 17 is coaxial feed portions.Similarly, the second current feed department 18 is preferably coaxial feed portion.Adopt the mode of coaxial feed, reduce the interference of feed structure.
In the present embodiment, first substrate 11, second substrate 12, first radiation fin 13 and the second radiation fin 14 can be plane.But the utility model is not limited thereto, in other embodiments, first substrate 11, second substrate 12, first radiation fin 13 and the second radiation fin 14 can be cambered surface, such as convex shape or concave.First substrate 11, second substrate 12, first radiation fin 13 and the second radiation fin 14 can have identical curvature, thus fit because of its similar 3D shape between these structure sheafs 11-14.In this embodiment, can be conformal concave or convex shape by first substrate 11, second substrate 12, first radiation fin 13 and the second radiation fin 14, so, this Antenna Design can be made compacter, reduce planar dimension, can also be increased the swept area of antenna by the conformal design of this curved surface, emittance is concentrated, and then improves the gain of antenna and widen coverage.
Fig. 5 shows the voltage standing wave ratio curve chart of the antenna in Fig. 1.Fig. 6 a, 6b show the gain curve figure of the antenna in Fig. 1.Fig. 7 a, 7b show the axial ratio curve chart of the antenna in Fig. 1, and with reference to figure 7a, 7b, the antenna of the utility model embodiment within the scope of ± 50 °, can realize axial ratio and be less than or equal to 6.Composition graphs 5 to Fig. 7 a, 7b, the antenna in known the utility model can produce the frequency range of two circular polarization.
In prior art, need use two antennas or even more antenna to form two-band or multiband circular polarized antenna, therefore, when back end signal process, usual needs two overlap or even more cover signal processing apparatus carry out the process of signal respectively, so clearly just add the volume of equipment, weight and cost.
But, by Antenna Design of the present utility model, and the actual effect figure of Fig. 5 to Fig. 7 a, 7b, single radiation fin just can realize circular polarization effect, and possesses the good advantage of two-band, high-gain and axial ratio performance.
Fig. 4 illustrates the structural representation of the antenna system of the utility model one embodiment.Shown in figure 4, the antenna system of the present embodiment comprises antenna 10 embodiment illustrated in fig. 1, mixer 20 and feed port 30.The first end of mixer 20 connects feed port 30, and the second end of mixer 20 connects the first current feed department 17 of the first radiation fin 13 of antenna 10, the second current feed department 18 of three-terminal link second radiation fin 14 of mixer 20.
Mixer 20 1 aspect is signal input signal being divided into multiband, outputs to the current feed department of the corresponding radiation fin of antenna respectively.Now mixer also can be described as splitter, and correspondingly, antenna system is in the state transmitted.Mixer 20 is that the Received signal strength of multiband is closed road to a feed port on the other hand, and now antenna system is in the state of Received signal strength.For example, the first frequency range that in the present embodiment, pumping signal feed port 30 provided is responsible in mixer 20 1 aspect outputs to the first current feed department 17 of antenna 10, the second frequency range of pumping signal is outputted to the second current feed department 18 of antenna 10.Mixer 20 is responsible for each frequency band signals respectively from each radiation fin 13,14 to be combined to export to feed port 30 afterwards on the other hand together.For example, the frequency of the second frequency range higher than the first frequency range, can form the cooperation of high and low frequency.
During transmitting work, pumping signal enters the first end (now it is input) of mixer 20 from a feed port 30, after mixer 20, be divided into two paths of signals, wherein a road signal is supplied to the first current feed department 17 of antenna 10 through the second end (now it is output) and transmission line, and another road signal is supplied to the second current feed department 18 of antenna 10 through the 3rd end (now it is output) and transmission line.During reception work, two-way Received signal strength respectively from the first current feed department 17 and the second current feed department 18 through transmission line to second end (now it is input) of mixer 20 and the 3rd end (now it is input), enter mixer 20 and be combined into a signal, feed port 30 is exported to, by follow-up receiving circuit process again from first end (now it is output).
Thus, the utility model only needs a feed port to export, and can only use a set of signal processing apparatus, enormously simplify the structure of antenna, reduce cost.
The circular polarized antenna of the utility model above-described embodiment and antenna system can be incorporated in communication apparatus.
Section is low, lightweight, volume is little owing to having for antenna, be easy to conformal and batch production advantage, can be widely used in measuring and communication every field.The circular polarized 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 main advantage of circular polarized antenna in practical application has:
1) arbitrary polarized electromagnetic wave all can be analyzed to the contrary circularly polarised wave of two rotation directions, as line polarization wave, can be decomposed into the circularly polarised wave of two reverse constant amplitudes.Therefore, the electromagnetic wave of polarization arbitrarily all can be received by circular polarized antenna, and the electromagnetic wave that circular polarized antenna is launched then can be received by the antenna polarized arbitrarily, therefore generally adopts circular polarized antenna in electronic reconnaissance and interference;
2) in the application such as communication, the polarization diversity work of radar and electronic countermeasures, extensively utilize the rotation direction orthogonality of circular polarized antenna;
3) when circularly polarised wave incides symmetric targets (as plane, sphere etc.), rotation direction reverses, so circular polarized antenna suppresses misty rain interference and anti-multipath reflection in the field such as mobile communication, satellite navigation.
Thering is provided previous description of the present disclosure is for making any person skilled in the art all can make or use the disclosure.To be all apparent for a person skilled in the art to various amendment of the present disclosure, and generic principles as defined herein can be applied to other variants and can not depart from spirit or scope of the present disclosure.Thus, the disclosure not intended to be is defined to example described herein and design, but the widest scope consistent with principle disclosed herein and novel features should be awarded.
Claims (22)
1. an antenna, it is characterized in that, comprise first substrate, second substrate, the first radiation fin and the second radiation fin, described first radiation fin is arranged on described first substrate, described second substrate is arranged on described first radiation fin, described second radiation fin is arranged on described second substrate, is all provided with lug boss in the edge of described first radiation fin and described second radiation fin, and described first radiation fin and described second radiation fin comprise the first current feed department and the second current feed department respectively.
2. antenna as claimed in claim 1, it is characterized in that, described first radiation fin and described second radiation fin are circle.
3. antenna as claimed in claim 2, it is characterized in that, described first radiation fin is provided with two described lug bosses, and two described boss in described first radiation fin circumferentially and symmetrical about the center of circle, wherein, described lug boss from the circumference at place towards away from the direction radial protrusion in the center of circle.
4. antenna as claimed in claim 3, it is characterized in that, described first substrate is rectangle, and the projection of the center of circle of described first radiation fin on described first substrate and the center superposition of described first substrate.
5. antenna as claimed in claim 4, it is characterized in that, on described first radiation fin, the line of two lug bosses drops on a diagonal of described first substrate.
6. antenna as claimed in claim 3, it is characterized in that, described second radiation fin is provided with two described lug bosses, and two described boss in described second radiation fin circumferentially and symmetrical about the center of circle, wherein, described lug boss from the circumference at place towards away from the direction radial protrusion in the center of circle.
7. antenna as claimed in claim 6, it is characterized in that, described second substrate is rectangle, and the projection of the center of circle of described second radiation fin on described second substrate and the center superposition of described second substrate.
8. antenna as claimed in claim 7, it is characterized in that, on described second radiation fin, the line of two lug bosses drops on a diagonal of described second substrate.
9. antenna as claimed in claim 6, it is characterized in that, on described first radiation fin, the line of two described lug bosses intersects mutually with the line of two described lug bosses on described second radiation fin.
10. antenna as claimed in claim 1, is characterized in that, in the horizontal symmetry axis that described first current feed department is positioned at described first radiation fin or vertical axis of symmetry, in the horizontal symmetry axis that described second current feed department is positioned at described second radiation fin or vertical axis of symmetry.
11. antennas as claimed in claim 1, is characterized in that, described first current feed department and described second current feed department are coaxial feed portion.
12. antennas as claimed in claim 1, is characterized in that, described first current feed department and described second current feed department are electrically insulated.
13. antennas as claimed in claim 1, it is characterized in that, the size of described second radiation fin is less than the size of described second substrate, and the size of described first radiation fin is less than the size of described first substrate, and the size of described first radiation fin is greater than the size of described second radiation fin.
14. antennas as claimed in claim 1, it is characterized in that, described first substrate, second substrate, the first radiation fin and the second radiation fin are flat shape.
15. antennas as claimed in claim 2, it is characterized in that, the projection of the center of circle on described first radiation fin of described second radiation fin overlaps with the center of circle of described first radiation fin, and the horizontal symmetry axis of described second radiation fin and the projection of vertical axis of symmetry on described first radiation fin overlap with the horizontal symmetry axis of described first radiation fin and vertical axis of symmetry respectively.
16. antennas as claimed in claim 1, it is characterized in that, described first substrate, second substrate, the first radiation fin and the second radiation fin are convex surface or concave.
17. antennas as claimed in claim 16, is characterized in that, described first substrate, second substrate, the first radiation fin are all identical with the curvature of the second radiation fin.
18. antennas as claimed in claim 1, is characterized in that, be placed with man-made microstructure in the inner horizontal direction of described first substrate or vertical direction.
19. antennas as claimed in claim 1, is characterized in that, be placed with man-made microstructure in the inner horizontal direction of described second substrate or vertical direction.
20. antennas as described in claim 18 or 19, is characterized in that, the hollow that the shape of described man-made microstructure comprises I-shaped or cross or snowflake shape or disconnects.
21. 1 kinds of antenna systems, it is characterized in that, comprise feed port, antenna and mixer, described antenna is the antenna according to any one of claim 1 to 20, the first end of described mixer connects described feed port, second end of described mixer connects described first current feed department, the second current feed department described in the three-terminal link of described mixer.
22. 1 kinds of communication equipments, is characterized in that, comprise antenna system according to claim 21.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520069606.0U CN204407492U (en) | 2015-01-30 | 2015-01-30 | Antenna, antenna system and communication equipment |
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| CN201520069606.0U CN204407492U (en) | 2015-01-30 | 2015-01-30 | Antenna, antenna system and communication equipment |
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| CN204407492U true CN204407492U (en) | 2015-06-17 |
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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 |