CN204407497U - Antenna, antenna system and communication equipment - Google Patents
Antenna, antenna system and communication equipment Download PDFInfo
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- CN204407497U CN204407497U CN201520071371.9U CN201520071371U CN204407497U CN 204407497 U CN204407497 U CN 204407497U CN 201520071371 U CN201520071371 U CN 201520071371U CN 204407497 U CN204407497 U CN 204407497U
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Abstract
The utility model relates to a kind of antenna and uses antenna system and the communication equipment of antenna.Described antenna comprises first substrate, second substrate, 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, described first radiation fin have lay respectively at described first radiation fin the first symmetry axis and the second symmetry axis on the first current feed department and the second current feed department, described second radiation fin have lay respectively at described second radiation fin the first symmetry axis and the second symmetry axis on the 3rd current feed department and the 4th current feed department, wherein said first substrate, second substrate, first radiation fin and the second radiation fin are cambered surface.
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
Technical problem to be solved in the utility model is to provide a kind of antenna and uses antenna system and the communication equipment of this antenna.
The utility model be solve the problems of the technologies described above the technical scheme adopted be propose a kind of antenna, comprise first substrate, second substrate, 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, described first radiation fin have lay respectively at described first radiation fin the second symmetry axis and the first symmetry axis on the first current feed department and the second current feed department, described second radiation fin have lay respectively at described second radiation fin the second symmetry axis and the first symmetry axis on the 3rd current feed department and the 4th current feed department, wherein said first substrate, second substrate, first radiation fin and the second radiation fin are cambered surface.
Alternatively, described first radiation fin and the projection in the horizontal plane of described second radiation fin are rectangle.
Alternatively, described first current feed department, described second current feed department, described 3rd current feed department and described 4th current feed department are coaxial feed portion.
Alternatively, described each current feed department is electrically insulated.
Alternatively, 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.
Alternatively, the size of described first radiation fin is greater than the size of described second radiation fin.
Alternatively, the projection of the central point of described second radiation fin on described first radiation fin and the point coincides of described first radiation fin.
Alternatively, the first symmetry axis of described second radiation fin and the projection of the second symmetry axis on a horizontal plane overlap with the first symmetry axis of described first radiation fin and the projection of the second symmetry axis on this horizontal plane respectively.
Alternatively, described first substrate, second substrate, the first radiation fin are all identical with the curvature of the second radiation fin.
Alternatively, man-made microstructure is placed with in the inner horizontal direction of described first substrate or vertical direction.
Alternatively, man-made microstructure is placed with in the inner horizontal direction of described second substrate or vertical direction.
Alternatively, the shape of described man-made microstructure comprises I-shaped or cross or snowflake shape or disconnection hollow.Alternatively, described first radiation fin and described second radiation fin are respectively the metal patch that attaches to described first substrate and described second substrate or plating in the coat of metal of described first substrate and described second substrate.
Alternatively, described first substrate and the projection in the horizontal plane of described second substrate are rectangle.
Alternatively, the thickness of described first substrate is less than the thickness of described second substrate.
The utility model also proposes a kind of antenna system, comprise feed port, antenna, mixer, and first power splitter and the second power splitter, described antenna is antenna as above, the first end of described mixer connects described feed port, second end of described mixer connects the first end of described first power splitter, the first end of the second power splitter described in the three-terminal link of described mixer, second end of described first power splitter connects described first current feed department, 3rd end of described first power splitter connects described second current feed department by 90 ° of phase shifters, and the second end of described second power splitter connects described 3rd current feed department, 3rd end of described second power splitter connects described 4th current feed department by 90 ° of phase shifters.
Alternatively, described 90 ° of phase shifters realize 90 ° of phase shifts by regulating the length of transmission line.
The utility model also proposes a kind of communication equipment, comprises antenna system as above.
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 designing two different current feed departments respectively on first symmetry axis and the second symmetry axis of each radiation fin, then connect this two current feed departments respectively by two power splitters and 90 ° of phase shifters, each radiation fin can be made to realize circular polarization separately.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 combines by the multiple technologies such as phase shifter, power splitter means, and this antenna can be made to realize multiband, circular polarization, miniaturization, wide covering etc.
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 antenna of the utility model one embodiment;
Fig. 2 illustrates the floor map 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 illustrates the gain curve figure of the antenna of the utility model embodiment;
Fig. 7 illustrates the axial ratio curve chart of the antenna 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 the antenna of the utility model one embodiment.Fig. 2 illustrates the floor map 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 the 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.That is, 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, adopt double-fed method to implement, double-fed method is equal by output two amplitudes, and two branch roads of phase 90 °, to radiating patch, excite two orthogonal mode of operations, reach circular polarization condition of work.Fig. 3 illustrates the current feed department schematic diagram of the antenna of the utility model one embodiment.Shown in figure 3, the first radiation fin 13 has the first current feed department 15 and the second current feed department 16, second radiation fin 14 has the 3rd current feed department 17 and the 4th current feed department 18.First current feed department 15 and the second current feed department 16 can input signal to be sent, or export the signal received.Similarly, the 3rd current feed department 17 and the 4th current feed department 18 can input signal to be sent, or export the signal received.In the present embodiment, by being arranged on four current feed departments on two radiation fins, the wide-angle axial ratio of antenna can also being optimized and improve directional diagram deviation in roundness.
On the second symmetry axis Y1 that first current feed department 15 and the second current feed department 16 need to lay respectively at the first radiation fin 13 and the first symmetry axis X1.On the second symmetry axis Y2 that 3rd current feed department 17 and the 4th current feed department 18 need to lay respectively at the second radiation fin 14 and the first symmetry axis X2.Shown in figure 3, as particular instance, the first symmetry axis X1, X2 is located along the same line, and the second symmetry axis Y1, Y2 is located along the same line.In other words, the projection of the central point of the second radiation fin 14 on the first radiation fin 13 and the point coincides of the first radiation fin 13.The projection of first symmetry axis X2 of the second radiation fin 14 and the second symmetry axis Y2 on horizontal plane (the XY plane in Fig. 1) overlaps with the first symmetry axis X1 of the first radiation fin 13 and the second symmetry axis Y1 projection in the horizontal plane respectively.First current feed department 15 is positioned on the second symmetry axis Y1 of the first radiation fin 13, and the second current feed department 16 is positioned on the first symmetry axis X1 of the first radiation fin 13.3rd current feed department 17 is positioned on the second symmetry axis Y2 of the second radiation fin 14, and the 4th current feed department 18 is positioned on the first 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 15, second current feed department 16, the 3rd current feed department 17 and the relative position of the 4th current feed department 18 on horizontal plane (paper in Fig. 3), as long as the first current feed department 15, second current feed department 16, the 3rd current feed department 17 and the 4th current feed department 18 can draw transmission line (not shown) separately in engineering.
On profile design, first substrate 11 and second substrate 12 projection are in the horizontal plane preferably rectangle, certainly, also can be other shapes.First radiation fin 13 and the second radiation fin 14 projection are in the horizontal plane preferably rectangle.Certainly can understand, the first radiation fin 14 and the second radiation fin 14 can also be other shapes.But, to be preferably shape identical for the first radiation fin 13 and the second radiation fin 14.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, 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, thus with guarantee signal that the first radiation fin 13 gives off not block by the second radiation fin 14 of being located thereon.
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 (in Fig. 1 XY in-plane) and/or vertically (in Fig. 1 Z-direction) be placed 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.
The antenna of the present embodiment is designed to have double frequency and sends and receiving ability.For this reason, the first current feed department 15, second current feed department 16, the 3rd current feed department 17 and the 4th current feed department 18 are electrically insulated, and to be input in respective assembled unit by frequency band signals to be sent respectively, or are exported from respective assembled unit by the signal received.
Preferably, the first current feed department 15, second current feed department 16, the 3rd current feed department 17 and the 4th current feed department 18 are 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 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 shows the gain curve figure of the antenna in Fig. 1.Fig. 7 shows the axial ratio curve chart of the antenna in Fig. 1, and with reference to figure 7, 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, the antenna in known the utility model can produce the frequency range of two circular polarization, and by the accurate control to corner cut, realizes the frequency range of two circular polarization.
Due 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, 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, first power splitter 22, second power splitter 24 and feed port 30.The first end of mixer 20 connects feed port 30, and the second end of mixer 20 connects the first end of the first power splitter 22, the first end of three-terminal link second power splitter 24 of mixer 20.The 3rd end that second end of the first power splitter 22 connects the first current feed department 15, first power splitter 22 connects the second current feed department 16 by 90 ° of phase shifters 26.Second end of the second power splitter 24 connects the 3rd end of the 3rd current feed department 17, second power splitter 24 by 90 ° of phase shifters connection the 4th current feed departments 18.
Mixer 20 1 aspect is signal input signal being divided into multiband, outputs to corresponding power splitter 22,24 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 power splitter 22, and the second frequency range of pumping signal is outputted to the second power splitter 24.Mixer 20 is responsible for exporting to feed port 30 afterwards by being combined to from each power splitter 22,24 frequency band signals respectively 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.
First power splitter 22 is responsible for the signal of a frequency range to be divided into two-way, and transmission line of leading up to outputs to the first current feed department 15 of antenna 10, and another road outputs to the second current feed department 16 of antenna 10 through 90 ° of phase shifters 26.Similarly, the second power splitter 24 is responsible for the signal of another frequency range to be divided into two-way, and transmission line of leading up to outputs to the 3rd current feed department 17 of antenna 10, and another road outputs to the 4th current feed department 18 of antenna 10 through 90 ° of phase shifters 28.
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 power splitter 22 through second end (now it is output) of mixer 20, and another road signal is supplied to the second power splitter 24 through the 3rd end (now it is output) of mixer 20.During reception work, two-way is transferred to the second end (now it is input) and the 3rd end (now it is input) of the first power splitter 22 respectively from the first current feed department 15 and the second current feed department 16 with frequency Received signal strength, and export from the first end (now it is output) of the first power splitter 22, the second end (now it is input) then through mixer 20 is combined into first frequency band signals.Another two-way is transferred to the second end (now it is input) and the 3rd end (now it is input) of the second power splitter 24 respectively from the 3rd current feed department 17 and the 4th current feed department 18 with frequency Received signal strength, and export from the first end (now it is output) of the second power splitter 24, the 3rd end (now it is input) then through mixer 20 is combined into a second frequency band signals signal.The signal of two-way different frequency range exports to feed port 30, by follow-up receiving circuit process from the first end of mixer 20 (now it is output) again.
In one embodiment, 90 ° of phase shifters realize by regulating length of transmission line.Specifically, arrange the transmission line of two different lengths, the phase delay that the difference of this length is caused is just 90 °.
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 equipment.
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.
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 (17)
1. an antenna, it is characterized in that comprising first substrate, second substrate, 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, described first radiation fin have lay respectively at described first radiation fin the second symmetry axis and the first symmetry axis on the first current feed department and the second current feed department, described second radiation fin have lay respectively at described second radiation fin the second symmetry axis and the first symmetry axis on the 3rd current feed department and the 4th current feed department, wherein said first substrate, second substrate, first radiation fin and the second radiation fin are cambered surface.
2. antenna as claimed in claim 1, it is characterized in that, described first radiation fin and the projection in the horizontal plane of described second radiation fin are rectangle.
3. antenna as claimed in claim 1, it is characterized in that, described first current feed department, described second current feed department, described 3rd current feed department and described 4th current feed department are coaxial feed portion.
4. antenna as claimed in claim 1, it is characterized in that, described each current feed department is electrically insulated.
5. antenna 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.
6. antenna as claimed in claim 1, it is characterized in that, the size of described first radiation fin is greater than the size of described second radiation fin.
7. antenna as claimed in claim 1, is characterized in that, the projection of central point on described first radiation fin of described second radiation fin and the point coincides of described first radiation fin.
8. antenna as claimed in claim 1, is characterized in that, the first symmetry axis of described second radiation fin and the projection of the second symmetry axis on a horizontal plane overlap with the first symmetry axis of described first radiation fin and the projection of the second symmetry axis on this horizontal plane respectively.
9. antenna as claimed in claim 1, is characterized in that, described first substrate, second substrate, the first radiation fin are all identical with the curvature of the second radiation fin.
10. antenna 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.
11. 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.
12. antennas as described in claim 10 or 11, is characterized in that, the hollow that the shape of described man-made microstructure comprises I-shaped or cross or snowflake shape or disconnects.
13. antennas as claimed in claim 1, it is characterized in that, described first radiation fin and described second radiation fin are respectively the metal patch that attaches to described first substrate and described second substrate or plating in the coat of metal of described first substrate and described second substrate.
14. antennas as claimed in claim 1, is characterized in that, described first substrate and the projection in the horizontal plane of described second substrate are rectangle.
15. 1 kinds of antenna systems, it is characterized in that comprising feed port, antenna, mixer, and first power splitter and the second power splitter, described antenna is the antenna according to any one of claim 1 to 14, the first end of described mixer connects described feed port, second end of described mixer connects the first end of described first power splitter, the first end of the second power splitter described in the three-terminal link of described mixer, second end of described first power splitter connects described first current feed department, 3rd end of described first power splitter connects described second current feed department by 90 ° of phase shifters, and the second end of described second power splitter connects described 3rd current feed department, 3rd end of described second power splitter connects described 4th current feed department by 90 ° of phase shifters.
16. antenna systems as claimed in claim 15, is characterized in that, described 90 ° of phase shifters realize 90 ° of phase shifts by regulating the length of transmission line.
17. 1 kinds of communication equipments, is characterized in that the antenna system comprised according to any one of claim 15 to 16.
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| CN201520071371.9U CN204407497U (en) | 2015-01-30 | 2015-01-30 | Antenna, antenna system and communication equipment |
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| CN201520071371.9U CN204407497U (en) | 2015-01-30 | 2015-01-30 | Antenna, antenna system and communication equipment |
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| CN204407497U true CN204407497U (en) | 2015-06-17 |
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Cited By (2)
| 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 |
| CN105990664A (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 device |
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2015
- 2015-01-30 CN CN201520071371.9U patent/CN204407497U/en active Active
Cited By (2)
| 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 |
| CN105990664A (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 device |
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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 |