CN104716422A - Circularly polarized antenna, antenna system and communication device - Google Patents
Circularly polarized antenna, antenna system and communication device Download PDFInfo
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- CN104716422A CN104716422A CN201310686872.3A CN201310686872A CN104716422A CN 104716422 A CN104716422 A CN 104716422A CN 201310686872 A CN201310686872 A CN 201310686872A CN 104716422 A CN104716422 A CN 104716422A
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Abstract
The invention provides a circularly polarized antenna, an antenna system and a communication device. The circularly polarized antenna comprises a substrate, a first radiation sheet and a second radiation sheet, wherein the first radiation sheet and the second radiation sheet have chamfers and are arranged on the substrate. The two radiation sheets, namely the first radiation sheet and the second radiation sheet are adopted in the circularly polarized antenna, and therefore the two radiation sheets can be manufactured on the substrate at the same time, and the circularly polarized antenna has the advantages of being simple in structure, convenient to manufacture and low in cost.
Description
Technical field
The present invention relates to field of radio frequency, more specifically, relate to a kind of circular polarized antenna, antenna system and communication apparatus.
Background technology
Along with the develop rapidly of wireless communication technology, the field involved by antenna technology is more and more extensive, and 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 order to meet actual needs, usually use the structures such as microstrip antenna, loop aerial, horn antenna, plane single pole sub antenna as main way of realization.But all there is different defects in these antenna.
In prior art, when needs adopt multiband circular polarized antenna, normally realize different frequency ranges respectively by multiport, multiple antennas, have that antenna amount is many, complex structure, polarization, gain performance difference shortcoming.
Summary of the invention
The present invention aim to provide a kind of two-band, simple, the cost of structure is low, circular polarized antenna, antenna system and communication apparatus.
For solving the problems of the technologies described above, according to a first aspect of the invention, provide a kind of circular polarized antenna, comprising: substrate, the first radiation fin and the second radiation fin, first radiation fin and the second radiation fin all have corner cut, and the first radiation fin and the second radiation fin are arranged on substrate.
Further, the first radiation fin and the second radiation fin are positioned on the same surface of substrate.
Further, the first radiation fin and the second radiation fin are the parallelogram with corner cut.
Further, the first radiation fin has two corner cuts, and these two corner cuts are positioned on a diagonal of the first radiation fin.
Further, the second radiation fin has two corner cuts, and these two corner cuts are positioned on a diagonal of the second radiation fin.
Further, the first radiation fin has two corner cuts, and these two corner cuts of the first radiation fin are positioned on a diagonal of the first radiation fin; Second radiation fin has two corner cuts, and these two corner cuts of the second radiation fin are positioned on a diagonal of the second radiation fin.
Further, a diagonal of the first radiation fin and a diagonal of the second radiation fin vertical.
Further, the angle of corner cut is 45 ± 10 degree.
Further, the angle of corner cut is 45 degree.
Further, circular polarized antenna also comprises the first current feed department coordinated with the first radiation fin.
Further, the first current feed department is coaxial feed portion.
Further, circular polarized antenna also comprises the second current feed department coordinated with the second radiation fin.
Further, the second current feed department is coaxial feed portion.
Further, substrate is square.
Further, the first radiation fin is identical with the shape of the second radiation fin.
According to a second aspect of the invention, provide a kind of antenna system, comprise signal input port, circular polarized antenna, power splitter and phase shifter, circular polarized antenna is above-mentioned circular polarized antenna, signal input port is connected with an input of power splitter, an output of power splitter is directly connected with circular polarized antenna, and another output of power splitter is connected with circular polarized antenna by phase shifter.
Further, power splitter is microstrip line power splitter.
Further, phase shifter has for the different transmission line of the length of phase shift.
According to a third aspect of the present invention, provide a kind of communication apparatus, comprise antenna system, antenna system is above-mentioned antenna system.
The present invention use only two radiation fins, i.e. the first radiation fin and the second radiation fin, thus, two radiation fins can be made on one substrate simultaneously, have the advantages that structure is simple, easy to make, cost is low.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the structural representation of the circular polarized antenna in the present invention;
Fig. 2 diagrammatically illustrates voltage standing wave ratio curve chart;
Fig. 3 diagrammatically illustrates gain curve figure;
Fig. 4 diagrammatically illustrates axial ratio curve chart; And
Fig. 5 diagrammatically illustrates the functional block diagram of the antenna system in the present invention.
Reference numeral in figure: 1, substrate; 2, the first radiation fin; 3, the second radiation fin; 4, signal input port; 5, circular polarized antenna; 6, power splitter; 7, phase shifter.
Embodiment
Below embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As a first aspect of the present invention, please refer to Fig. 1, provide a kind of circular polarized antenna, comprising: substrate 1, first radiation fin 2 and the second radiation fin 3, first radiation fin 2 and the second radiation fin 3 all have corner cut, and the first radiation fin 2 and the second radiation fin 3 are arranged on substrate 1.
Preferably, the first radiation fin 2 and the second radiation fin 3 are the parallelogram with corner cut.Preferably, the angle of corner cut is 45 ± 10 degree.Preferably, the angle of corner cut is 45 degree.Obviously, corner cut also can be other angle.Preferably, substrate 1 is square, certainly, also can be other shape.Preferably, the first radiation fin 2 is identical with the shape of the second radiation fin 3.Preferably, the shape of all corner cuts is identical.
Fig. 2 shows the voltage standing wave ratio curve chart of the circular polarized antenna in Fig. 1, and Fig. 3 shows the gain curve figure of the circular polarized antenna in Fig. 1, and Fig. 4 shows the axial ratio curve chart of the circular polarized antenna in Fig. 1.Composition graphs 2 to Fig. 4 is known, and the circular polarized antenna in the present invention 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.In addition, the present invention use only two radiation fins, i.e. the first radiation fin 2 and the second radiation fin 3, thus, two radiation fins can be made on one substrate simultaneously, have the advantages that structure is simple, easy to make, cost is low.
Preferably, the first radiation fin 2 and the second radiation fin 3 are positioned on the same surface of substrate 1.
In first embodiment, the first radiation fin 2 has two corner cuts, and these two corner cuts are positioned on a diagonal of the first radiation fin 2.In the second embodiment, the second radiation fin 3 has two corner cuts, and these two corner cuts are positioned on a diagonal of the second radiation fin 3.In the 3rd embodiment, the first radiation fin 2 has two corner cuts, and these two corner cuts of the first radiation fin 2 are positioned on a diagonal of the first radiation fin 2; Second radiation fin 3 has two corner cuts, and these two corner cuts of the second radiation fin 3 are positioned on a diagonal of the second radiation fin 3.
Preferably, in the present invention, a diagonal of the first radiation fin 2 is vertical with a diagonal of the second radiation fin 3.Like this, can ensure that two polarized electric field lines are in orthogonal state.
Preferably, circular polarized antenna also comprises the first current feed department coordinated with the first radiation fin 2.Preferably, the first current feed department is coaxial feed portion.Preferably, circular polarized antenna also comprises the second current feed department coordinated with the second radiation fin 3.Preferably, the second current feed department is coaxial feed portion.Adopt the mode of coaxial feed, reduce feed structure.
Due in prior art, use two circular polarized antennas are needed to form two-band circular polarized antenna, therefore, when back end signal process, usual needs two overlap signal processing apparatus, or only adopt a set of signal processing apparatus, now need a diverter switch that two cover signals are accessed a set of signal processing apparatus with switching respectively, thus, the volume of equipment, weight and cost is added.
As a second aspect of the present invention, provide a kind of antenna system, comprise signal input port 4, circular polarized antenna 5, power splitter 6 and phase shifter 7, circular polarized antenna is above-mentioned circular polarized antenna, signal input port 4 is connected with an input of power splitter 6, an output of power splitter 6 is directly connected with circular polarized antenna 5, and another output of power splitter 6 is connected with circular polarized antenna 5 by phase shifter 7.
During work, pumping signal enters an input of power splitter 6, after power splitter 6 from a signal input port 4, be divided into two paths of signals, wherein a road signal is directly connected with circular polarized antenna 5, and another road signal, after 90-degree phase shifter, is connected with circular polarized antenna 5.Thus, can only use a set of signal processing apparatus, enormously simplify the structure of antenna, reduce cost.
Preferably, power splitter 6 is microstrip line power splitter.Microstrip line merit is adopted to divide mode, can comparatively save space, can also effectively weight reduction.
Preferably, phase shifter has for the different transmission line of the length of phase shift.Adopt length line mode, a polarization phases can be made to differ a certain phase place with another polarization phases, such as 90 degree etc., there is volume little, the simple feature of structure.
As a third aspect of the present invention, provide a kind of communication apparatus, comprise antenna system, antenna system is above-mentioned antenna system.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (19)
1. a circular polarized antenna, it is characterized in that, comprise: substrate (1), the first radiation fin (2) and the second radiation fin (3), described first radiation fin (2) and described second radiation fin (3) all have corner cut, and described first radiation fin (2) and described second radiation fin (3) are arranged on described substrate (1).
2. circular polarized antenna according to claim 1, is characterized in that, described first radiation fin (2) and described second radiation fin (3) are positioned on the same surface of described substrate (1).
3. circular polarized antenna according to claim 1, is characterized in that, described first radiation fin (2) and described second radiation fin (3) are the parallelogram with corner cut.
4. circular polarized antenna according to claim 3, is characterized in that, described first radiation fin (2) has two described corner cuts, and these two described corner cuts are positioned on a diagonal of described first radiation fin (2).
5. circular polarized antenna according to claim 3, is characterized in that, described second radiation fin (3) has two described corner cuts, and these two described corner cuts are positioned on a diagonal of described second radiation fin (3).
6. circular polarized antenna according to claim 3, is characterized in that,
Described first radiation fin (2) has two described corner cuts, and these two described corner cuts of described first radiation fin (2) are positioned on a diagonal of described first radiation fin (2);
Described second radiation fin (3) has two described corner cuts, and these two described corner cuts of described second radiation fin (3) are positioned on a diagonal of described second radiation fin (3).
7. circular polarized antenna according to claim 6, is characterized in that, a described diagonal of described first radiation fin (2) is vertical with a described diagonal of described second radiation fin (3).
8. circular polarized antenna according to claim 3, is characterized in that, the angle of described corner cut is 45 ± 10 degree.
9. circular polarized antenna according to claim 8, is characterized in that, the angle of described corner cut is 45 degree.
10. circular polarized antenna according to claim 3, is characterized in that, described circular polarized antenna also comprises the first current feed department coordinated with described first radiation fin (2).
11. circular polarized antennas according to claim 10, is characterized in that, described first current feed department is coaxial feed portion.
12. circular polarized antennas according to claim 10, is characterized in that, described circular polarized antenna also comprises the second current feed department coordinated with described second radiation fin (3).
13. circular polarized antennas according to claim 12, is characterized in that, described second current feed department is coaxial feed portion.
14. circular polarized antennas according to claim 3, is characterized in that, described substrate (1) is for square.
15. circular polarized antennas according to claim 3, is characterized in that, described first radiation fin (2) is identical with the shape of the second radiation fin (3).
16. 1 kinds of antenna systems, it is characterized in that, comprise signal input port (4), circular polarized antenna (5), power splitter (6) and phase shifter (7), described circular polarized antenna is the circular polarized antenna according to any one of claim 1 to 15, described signal input port (4) is connected with an input of described power splitter (6), an output of described power splitter (6) is directly connected with described circular polarized antenna (5), and another output of described power splitter (6) is connected with described circular polarized antenna (5) by described phase shifter (7).
17. antenna systems according to claim 16, is characterized in that, described power splitter (6) is microstrip line power splitter.
18. antenna systems according to claim 16, is characterized in that, described phase shifter has for the different transmission line of the length of phase shift.
19. 1 kinds of communication apparatus, comprise antenna system, it is characterized in that, described antenna system is the antenna system according to any one of claim 16 to 18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310686872.3A CN104716422A (en) | 2013-12-12 | 2013-12-12 | Circularly polarized antenna, antenna system and communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310686872.3A CN104716422A (en) | 2013-12-12 | 2013-12-12 | Circularly polarized antenna, antenna system and communication device |
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| CN104716422A true CN104716422A (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310686872.3A Pending CN104716422A (en) | 2013-12-12 | 2013-12-12 | Circularly polarized antenna, antenna system and communication device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6140968A (en) * | 1998-10-05 | 2000-10-31 | Murata Manufacturing Co., Ltd. | Surface mount type circularly polarized wave antenna and communication apparatus using the same |
| CN1497779A (en) * | 2002-10-22 | 2004-05-19 | 松下电器产业株式会社 | Antenna and electronic equipment using it |
| CN101034122A (en) * | 2007-03-30 | 2007-09-12 | 东南大学 | Microelectronic machinery orthogonal double channels microwave phase online detector and manufacturing method therefor |
| CN202797299U (en) * | 2012-09-25 | 2013-03-13 | 四川九洲电器集团有限责任公司 | Satellite positioning navigation antenna |
| CN202872799U (en) * | 2012-10-08 | 2013-04-10 | 南京长峰航天电子科技有限公司 | Variable polarization radio frequency generation device |
| CN203133277U (en) * | 2013-03-26 | 2013-08-14 | 南京理工大学 | Automobile active anti-collision radar apparatus |
| CN203607540U (en) * | 2013-12-12 | 2014-05-21 | 深圳光启创新技术有限公司 | Circularly polarized antenna, antenna system, and communication equipment |
-
2013
- 2013-12-12 CN CN201310686872.3A patent/CN104716422A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6140968A (en) * | 1998-10-05 | 2000-10-31 | Murata Manufacturing Co., Ltd. | Surface mount type circularly polarized wave antenna and communication apparatus using the same |
| CN1497779A (en) * | 2002-10-22 | 2004-05-19 | 松下电器产业株式会社 | Antenna and electronic equipment using it |
| CN101034122A (en) * | 2007-03-30 | 2007-09-12 | 东南大学 | Microelectronic machinery orthogonal double channels microwave phase online detector and manufacturing method therefor |
| CN202797299U (en) * | 2012-09-25 | 2013-03-13 | 四川九洲电器集团有限责任公司 | Satellite positioning navigation antenna |
| CN202872799U (en) * | 2012-10-08 | 2013-04-10 | 南京长峰航天电子科技有限公司 | Variable polarization radio frequency generation device |
| CN203133277U (en) * | 2013-03-26 | 2013-08-14 | 南京理工大学 | Automobile active anti-collision radar apparatus |
| CN203607540U (en) * | 2013-12-12 | 2014-05-21 | 深圳光启创新技术有限公司 | Circularly polarized antenna, antenna system, and communication equipment |
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Application publication date: 20150617 |
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