CN204407496U - Microstrip antenna, antenna system and communication equipment - Google Patents
Microstrip antenna, antenna system and communication equipment Download PDFInfo
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- CN204407496U CN204407496U CN201520071341.8U CN201520071341U CN204407496U CN 204407496 U CN204407496 U CN 204407496U CN 201520071341 U CN201520071341 U CN 201520071341U CN 204407496 U CN204407496 U CN 204407496U
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Abstract
The utility model relates to a kind of microstrip antenna and uses antenna system and the communication equipment of microstrip antenna.Described microstrip antenna comprises first substrate, second substrate, the first radiation fin and the second radiation fin, described first radiation fin is arranged on the 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 has the first current feed department, described second radiation fin has the second current feed department, described first radiation fin and the second radiation fin all have corner cut, and described first substrate, second substrate, the first radiation fin and the second radiation fin are cambered surface.
Description
Technical field
The utility model relates to a kind of antenna, especially relates to a kind of microstrip antenna, and uses antenna system and the communication equipment of this microstrip 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.
The antenna of prior art needs multiple port when realizing multiple frequency range, and realizes the complicated headend equipment of circular polarization needs.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of microstrip antenna and uses antenna system and the communication equipment of this microstrip antenna.
The utility model be solve the problems of the technologies described above the technical scheme adopted be propose a kind of microstrip antenna, comprise first substrate, second substrate, first radiation fin and the second radiation fin, described first radiation fin is arranged on the 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 has the first current feed department, described second radiation fin has the second current feed department, described first radiation fin and the second radiation fin all have the corner cut for generation of circular polarization, described first substrate, second substrate, first radiation fin and the second radiation fin are cambered surface.
Alternatively, described first current feed department and described second current feed department are electrically insulated.
Alternatively, described first radiation fin and described second radiation fin are the rectangle with corner cut.
Alternatively, the shape of described first substrate and second substrate is rectangle.
Alternatively, described first radiation fin has two described corner cuts, and two described corner cuts are positioned on a diagonal of described first radiation fin.
Alternatively, described second radiation fin has two described corner cuts, and two described corner cuts are positioned on a diagonal of described second radiation fin.
Alternatively, described first radiation fin has two described corner cuts, and two described corner cuts are positioned on a diagonal of described first radiation fin; And described second radiation fin has two described corner cuts, and two described corner cuts are positioned on a diagonal of described second radiation fin.
Alternatively, a described diagonal of described first radiation fin and a described diagonal of described second radiation fin vertical.
Alternatively, the angle of described corner cut is 35-55 degree.Preferably, the angle of described corner cut is 45 degree.
Alternatively, described first current feed department and the second current feed department are coaxial feed portions.
Alternatively, described first radiation fin is identical with the shape of described second radiation fin.
Alternatively, the size of described first radiation fin is more than or equal to the size of described second radiation fin.
The utility model also proposes a kind of antenna system, comprise feed port, microstrip antenna and mixer, described microstrip antenna is microstrip antenna as above, 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.
The utility model also proposes a kind of communication equipment, comprises antenna system as above.
The above-mentioned microstrip antenna of the utility model does not need complicated structure just can realize the circular polarization of multiple frequency range.
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 microstrip antenna of the utility model one embodiment;
Fig. 2 illustrates the floor map of the microstrip antenna of the utility model one embodiment;
Fig. 3 illustrates the current feed department schematic diagram of the microstrip 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 microstrip antenna of the utility model embodiment;
Fig. 6 illustrates the gain curve figure of the microstrip antenna of the utility model embodiment;
Fig. 7 illustrates the axial ratio curve chart of the microstrip 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 microstrip antenna of the utility model one embodiment.Fig. 2 illustrates the floor map of the microstrip antenna of the utility model one embodiment.Shown in figure 1 and Fig. 2, the microstrip 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.The assembled unit of each radiation fin and substrate forms one and receives and transmit path.In the present embodiment, two unit are combined into microstrip antenna in superimposed mode further.That is, second substrate 12 is arranged on the first radiation fin 13.Fig. 3 illustrates the current feed department schematic diagram of the microstrip antenna of the utility model one embodiment.Shown in figure 3, the first radiation fin 13 has the first current feed department 15, second radiation fin 14 and has the second current feed department 16.First current feed department 15 and the second current feed department 16 can input signal to be sent respectively, or export the signal received.
In order to realize the circular polarization of microstrip antenna, the present embodiment utilizes 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 corner cut 13a and 13b.Similarly, the second radiation fin 14 has corner cut 14a and 14b.The advantage being realized circular polarization by said method is, the first radiation fin 13 and the second radiation fin 14 only can have a current feed department respectively.
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 rectangle of corner cut.Certainly can understand, the first radiation fin 13 and the second radiation fin 14 can also make other shapes.But, to be preferably shape identical for the first radiation fin 13 and the second radiation fin 14.The size of the first radiation fin 13 is preferably greater than or equal to the size of the second radiation fin 14, and 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.
Preferably, the angle of each corner cut 13a, 13b, 14a and 14b is chosen between 55 degree at 35 degree.More preferably, the angle of each corner cut 13a, 13b, 14a and 14b is 45 degree.Be understandable that, corner cut also can be other angle.Preferably, the first radiation fin 13 is identical with the shape of the second radiation fin 14.Preferably, all corner cut 13a, 13b, 14a are identical with the shape of 14b.
In one embodiment, two corner cut 13a, 13b of the first radiation fin 13 are positioned on a diagonal A of the first radiation fin 13.Similarly, two corner cut 14a, 14b of the second radiation fin 14 also can be positioned on a diagonal B of the second radiation fin 14.Certainly can understand, in embodiment of the present utility model, two corner cuts of the first radiation fin 13 and the second radiation fin 14 can not simultaneously meet aforesaid to angular dependence, but only have two of a radiation fin corner cuts to meet aforesaid to angular dependence.
Be positioned on a diagonal A of the first radiation fin 13 at two corner cut 13a, 13b of the first radiation fin 13, and two corner cut 14a, 14b of the second radiation fin 14 are also arranged in the embodiment on a diagonal B of the second radiation fin 14, preferably the diagonal A of the first radiation fin 13 is vertical with the diagonal B of the second radiation fin 14.Like this, can ensure that two polarized electric field lines are in orthogonal state.
On the horizontal symmetry axis X1 that first current feed department 15 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 16 needs to be positioned at the second radiation fin 14 or vertical axis of symmetry Y2.Shown in figure 3, for simplicity, suppose horizontal symmetry axis X1, X2 is located along the same line, and vertical axis of symmetry Y1, Y2 are located along the same line.First current feed department 15 is positioned on the vertical axis of symmetry Y1 of the first radiation fin 13, and the second current feed department 16 is positioned on the horizontal symmetry axis X1 of the second radiation fin 14.In addition, embodiment of the present utility model does not limit the first current feed department 15 and the relative position of the second current feed department 16 on horizontal plane (paper in Fig. 3), as long as the first current feed department 15 and the second current feed department 16 can draw transmission line (not shown) separately in engineering.
The microstrip 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 and the second current feed department 16 are electrically insulated, and to be input in respective unit by frequency band signals to be sent respectively, or are exported from respective unit by the signal received.
Preferably, the first current feed department 15 is coaxial feed portions.Similarly, the second current feed department 16 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 cambered surface.Fit because of its similar 3D shape between these structure sheafs 11-14.
Fig. 5 shows the voltage standing wave ratio curve chart of the microstrip antenna in Fig. 1.Fig. 6 shows the gain curve figure of the microstrip antenna in Fig. 1.Fig. 7 shows the axial ratio curve chart of the microstrip antenna in Fig. 1, and with reference to figure 7, the microstrip 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 microstrip 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, 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 add the volume of equipment, weight and cost.
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 microstrip antenna 10 embodiment illustrated in fig. 1, mixer 20 and feed port 30.The first end 21 of mixer 20 connects feed port 30, and the second end 22 of mixer 20 connects the first current feed department 15 of the first radiation fin 13 of microstrip antenna 10, and the 3rd end 23 of mixer 20 connects the second current feed department 16 of the second radiation fin 14.
Mixer 20 1 aspect is signal input signal being divided into multiband, outputs to the current feed department of the corresponding radiation fin of microstrip 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 15 of microstrip antenna 10, the second frequency range of pumping signal is outputted to the second current feed department 16 of microstrip 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 15 of microstrip 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 16 of microstrip 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 15 and the second current feed department 16 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, can only use a set of signal processing apparatus, enormously simplify the structure of antenna, reduce cost.
The circular polarization microstrip 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 microstrip antenna, be easy to conformal and batch production advantage, can be widely used in measuring and communication every field.The circular polarization microstrip 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 polarization microstrip 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 (15)
1. a microstrip antenna, it is characterized in that comprising first substrate, second substrate, the first radiation fin and the second radiation fin, described first radiation fin is arranged on the 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 has the first current feed department, described second radiation fin has the second current feed department, described first radiation fin and the second radiation fin all have the corner cut for generation of circular polarization, and described first substrate, second substrate, the first radiation fin and the second radiation fin are cambered surface.
2. microstrip antenna as claimed in claim 1, it is characterized in that, described first current feed department and described second current feed department are electrically insulated.
3. microstrip 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.
4. microstrip antenna as claimed in claim 1, it is characterized in that, the shape of described first substrate and second substrate is rectangle.
5. microstrip antenna as claimed in claim 3, it is characterized in that, described first radiation fin has two described corner cuts, and two described corner cuts are positioned on a diagonal of described first radiation fin.
6. microstrip antenna as claimed in claim 3, it is characterized in that, described second radiation fin has two described corner cuts, and two described corner cuts are positioned on a diagonal of described second radiation fin.
7. microstrip antenna as claimed in claim 3, it is characterized in that, described first radiation fin has two described corner cuts, and two described corner cuts are positioned on a diagonal of described first radiation fin; And described second radiation fin has two described corner cuts, and two described corner cuts are positioned on a diagonal of described second radiation fin.
8. microstrip antenna as claimed in claim 7, it is characterized in that, a described diagonal of described first radiation fin is vertical with a described diagonal of described second radiation fin.
9. microstrip antenna as claimed in claim 3, it is characterized in that, the angle of described corner cut is 35-55 degree.
10. microstrip antenna as claimed in claim 3, it is characterized in that, the angle of described corner cut is 45 degree.
11. microstrip antennas as claimed in claim 3, it is characterized in that, described first current feed department and the second current feed department are coaxial feed portions.
12. microstrip antennas as claimed in claim 3, it is characterized in that, described first radiation fin is identical with the shape of described second radiation fin.
13. microstrip antennas as claimed in claim 3, is characterized in that, the size of described first radiation fin is more than or equal to the size of described second radiation fin.
14. 1 kinds of antenna systems, it is characterized in that comprising feed port, microstrip antenna and mixer, described microstrip antenna is the microstrip antenna according to any one of claim 1 to 13, 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.
15. 1 kinds of communication equipments, is characterized in that comprising antenna system according to claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520071341.8U CN204407496U (en) | 2015-01-30 | 2015-01-30 | Microstrip antenna, antenna system and communication equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520071341.8U CN204407496U (en) | 2015-01-30 | 2015-01-30 | Microstrip antenna, antenna system and communication equipment |
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| CN204407496U true CN204407496U (en) | 2015-06-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016119739A1 (en) * | 2015-01-30 | 2016-08-04 | 深圳光启高等理工研究院 | Antenna, antenna system and communication device |
| 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 |
| CN105990646A (en) * | 2015-01-30 | 2016-10-05 | 深圳光启尖端技术有限责任公司 | Microstrip antenna, antenna system and communication apparatus |
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2015
- 2015-01-30 CN CN201520071341.8U patent/CN204407496U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016119739A1 (en) * | 2015-01-30 | 2016-08-04 | 深圳光启高等理工研究院 | Antenna, antenna system and communication device |
| 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 |
| CN105990646A (en) * | 2015-01-30 | 2016-10-05 | 深圳光启尖端技术有限责任公司 | Microstrip antenna, antenna system and communication apparatus |
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Effective date of registration: 20160405 Address after: 518057 Guangdong City, Nanshan District province high tech Zone in the middle of a high tech building, building No. 4, 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 |