CN105406180B - The planar broad band circular polarized antenna of one species 8-shaped - Google Patents
The planar broad band circular polarized antenna of one species 8-shaped Download PDFInfo
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- CN105406180B CN105406180B CN201510864638.4A CN201510864638A CN105406180B CN 105406180 B CN105406180 B CN 105406180B CN 201510864638 A CN201510864638 A CN 201510864638A CN 105406180 B CN105406180 B CN 105406180B
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- radiating element
- polarized antenna
- circular polarized
- broad band
- wave dipole
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Abstract
The present invention proposes the planar broad band circular polarized antenna of a species 8-shaped, including medium substrate, top layer radiating element and bottom radiating element, top layer radiating element is arranged at the upper surface of medium substrate, bottom radiating element is arranged at the lower surface of medium substrate, the size and structure all same of the top layer radiating element and bottom radiating element, top layer radiating element is connected to form by top-level metallic band radiating element and top-level metallic half-wave dipole unit, and bottom radiating element is connected to form by underlying metal band radiating element and underlying metal half-wave dipole unit；Top layer radiating element and bottom radiating element are placed relative to medium substrate in class 8-shaped antisymmetry.The structure of the present invention is applied to Broadband circularly polarized antenna, makes antenna structure symmetrically simple, and feed is convenient, can realize broadband and wide wave beam circular polarization radiation, and the antenna volume of the present invention is compact, and cost of manufacture is cheap.
Description
Technical field
The invention belongs to microwave technical field, more particularly, to the planar broad band circular polarized antenna of a species 8-shaped.
Background technology
Microstrip antenna has the characteristics that small volume, in light weight, cost is low, is widely used in wireless communication field.Circular polarisation
Antenna has lot of advantages：The incoming wave of various direction linear polarizations can be received, its circular polarization radiation ripple can also arbitrarily be polarized
Antenna receives；With rotation direction orthogonality, polarized wave incide symmetric targets back wave be changed into derotation to etc..But because circular polarisation is micro-
Band antenna impedance bandwidth and axial ratio bandwidth are generally narrower, and beam angle is narrower, to meet wireless data transmission to broad-band antenna
Demand, various new Antenna Designs start to occur with structure.
The content of the invention
Technical problem solved by the invention is to provide a kind of the flat of class 8-shaped simple in construction, being easy to processing and fabricating
Face Broadband circularly polarized antenna, the antenna is by two sizes, radiating element relative medium substrate antisymmetry, the class 8 of structure all same
Font is placed, and is combined by metallic vias, not only meet broad-band antenna communication system to antenna impedance bandwidth with
And the requirement of axial ratio bandwidth, and greatly expanded the beam angle of antenna.
The technical solution for realizing the object of the invention is：
The planar broad band circular polarized antenna of one species 8-shaped, including medium substrate, top layer radiating element and bottom radiation are single
Member, top layer radiating element are arranged at the upper surface of medium substrate, and bottom radiating element is arranged at the lower surface of medium substrate, described
The size and structure all same of top layer radiating element and bottom radiating element, top layer radiating element are radiated single by top-level metallic band
Member and top-level metallic half-wave dipole unit are connected to form, and bottom radiating element is by underlying metal band radiating element and underlying metal
Half-wave dipole unit is connected to form；
Top layer radiating element and bottom radiating element are placed relative to medium substrate in class 8-shaped antisymmetry；Wherein：Top layer
Metal half-wave dipole unit is connected by the first metallic vias with underlying metal band radiating element, the radiation of top-level metallic band
Unit is connected by the second metallic vias with underlying metal half-wave dipole unit.
Further, the planar broad band circular polarized antenna of class 8-shaped of the invention, the planar broad band circular polarized antenna exist
The center breaking part of top-level metallic half-wave dipole unit is balanced feed, the core of underlying metal half-wave dipole unit
Remain closed.
Further, the planar broad band circular polarized antenna of class 8-shaped of the invention, the planar broad band circular polarized antenna exist
The center breaking part of underlying metal half-wave dipole unit is balanced feed, the core of top-level metallic half-wave dipole unit
Remain closed.
Further, the planar broad band circular polarized antenna of class 8-shaped of the invention, the top-level metallic band radiating element
For straight line, circular arc or right angle.
Further, the planar broad band circular polarized antenna of class 8-shaped of the invention, the underlying metal band radiating element
For straight line, circular arc or right angle.
Further, the planar broad band circular polarized antenna of class 8-shaped of the invention, the planar broad band circular polarized antenna are adopted
Fed with symmetrical two-wire feed structure, the symmetrical two-wire feed structure is that two signal wires are symmetrically accessed into top layer gold
Belong to the center breaking part of half-wave dipole unit or underlying metal half-wave dipole unit, keep electrical connection.
Further, the planar broad band circular polarized antenna of class 8-shaped of the invention, the planar broad band circular polarized antenna are adopted
Fed with microstrip line-symmetrical two-wire transformational structure.
The present invention compared with prior art, has following technique effect using above technical scheme：
1st, the planar broad band circular polarized antenna structure of class 8-shaped of the invention is symmetrically simple, making easy to process；
2nd, the planar broad band circular polarized antenna broadband of class 8-shaped of the invention, broad beam, feed is convenient, superior performance.
3rd, the planar broad band circular polarized antenna compact of class 8-shaped of the invention, cost of manufacture are cheap.
Brief description of the drawings
Fig. 1 is the top view of structure of the present invention；
Fig. 2 is the front view of structure of the present invention；
Fig. 3 is the right view of structure of the present invention；
Fig. 4 is the antenna return loss characteristic calculated using HFSS softwares；
Fig. 5 is the antenna axial ratio characteristic calculated using HFSS softwares；
Fig. 6 is the antenna gain curve calculated using HFSS softwares；
Fig. 7 is the antenna beamwidth figure calculated using HFSS softwares；
Fig. 8 is the antenna left-handed polarization antenna pattern calculated using HFSS softwares；
Fig. 9 is the antenna right-hand polarization antenna pattern calculated using HFSS softwares.
Description of reference numerals：X：The transverse direction of top view, Y：The longitudinal direction of top view, Z：The longitudinal direction of side view, 1：Medium substrate,
2：Underlying metal band radiating element, 3：Top-level metallic band radiating element, 4：Bottom half-wave dipole unit, 5：Top layer half-wave shakes
Subelement, 6：First metallic vias, 7：Second metallic vias, 8：The center breaking part of top-level metallic half-wave dipole unit, 9：
Symmetrical two-wire feed structure.
Embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
As shown in Figure 1, Figure 2, Figure 3 shows, the structure of the planar broad band circular polarized antenna of a species 8-shaped is：Antenna is produced on
On medium substrate 1, irradiation structure is made up of top layer radiating element and bottom radiating element, and both structure and size are identical, top
Layer radiating element is arranged at the upper surface of medium substrate 1, and bottom radiating element is arranged at the lower surface of medium substrate 1, top layer spoke
Unit and bottom radiating element is penetrated to place in class 8-shaped antisymmetry.Bottom radiating element is radiated single by underlying metal band respectively
Member 2 is formed with underlying metal half-wave dipole unit 4, and top layer radiating element is respectively by top-level metallic band radiating element 3 and top layer
Metal half-wave dipole unit 5 is formed, and top-level metallic half-wave dipole unit 5 passes through the first metallic vias 6 and underlying metal band spoke
Penetrate unit 2 to be connected, top-level metallic band radiating element 3 passes through the second metallic vias 7 and the phase of underlying metal half-wave dipole unit 4
Connection.
In the planar broad band circular polarized antenna of class 8-shaped, underlying metal band radiating element 2, top-level metallic band spoke
Unit 3 is penetrated using the mode that is directly connected to, or the connected mode using other arbitrary shapes such as circular arc, square right angles.
When the planar broad band circular polarized antenna of class 8-shaped enters in the center breaking part 8 of top-level metallic half-wave dipole unit 5
Row balanced feeding, now the core of underlying metal half-wave dipole unit 4 remain closed.
When the planar broad band circular polarized antenna of class 8-shaped enters in the center breaking part of underlying metal half-wave dipole unit 4
Row balanced feeding, now the core of top-level metallic half-wave dipole unit 5 remain closed.
The planar broad band circular polarized antenna of class 8-shaped can also use symmetrical two-wire feed structure 9 or microstrip line-symmetric double
Line transformational structure is fed.Wherein, symmetrical two-wire feed structure 9 is by the way that two signal wires are symmetrically accessed into top-level metallic
The center breaking part of half-wave dipole unit 5 or underlying metal half-wave dipole unit 4, to keep being electrically connected.
As shown in figure 4, the medium substrate 1 for giving the planar broad band circular polarized antenna of class 8-shaped is normal according to relative dielectric
When number 2.2, thickness are 1 millimeter of design, the antenna return loss characteristic of HFSS softwares calculating is utilized.From the figure 3, it may be seen that antenna-
10dB impedance bandwidths are about 50% (2.7GHz~4.5GHz), meet broad-band antenna communication system to antenna impedance bandwidth requirement.
As shown in figure 5, give the axle ratio characteristic of the planar broad band circular polarized antenna of class 8-shaped.As shown in Figure 4, antenna
3dB axial ratio bandwidths be 21.5% (2.9GHz~3.6GHz), meet broad-band antenna communication system to antenna impedance bandwidth requirement.
As shown in fig. 6, it is bent to give the planar broad band circular polarized antenna of the class 8-shaped change in gain in 3dB axial ratio bandwidths
Line, as can be seen from the figure the antenna gain is substantially in more than 3dB.
As shown in fig. 7, the axle of the planar broad band circular polarized antenna of class 8-shaped is given than beam pattern, can from figure
The circularly polarised wave beam width for going out the antenna has reached 100 °.
As shown in figure 8, the planar broad band circular polarized antenna of class 8-shaped is given on the XOZ faces and YOZ faces at 3.2GHz
Left-handed antenna pattern, as can be seen from Figure the left-handed antenna pattern of the antenna have good circular polarization characteristics.
As shown in figure 9, the planar broad band circular polarized antenna of class 8-shaped is given on the XOZ faces and YOZ faces at 3.2GHz
Dextrorotation antenna pattern, as can be seen from Figure the antenna dextrorotation antenna pattern have good circular polarization characteristics.
Comprehensive Correlation Fig. 8 and Fig. 9, it can be seen that antenna is bidirectional radiation, adds reflecting plate in top layer or bottom any surface
Significantly improve antenna gain.
The planar broad band circular polarized antenna of class 8-shaped can significantly improve the axial ratio bandwidth and beam angle of antenna, and
And antenna structure is symmetrically simple, making easy to process.The characteristic of the bidirectional radiation of the antenna, and top-bottom cross are symmetrically tied
Structure, antenna gain can be improved by setting reflecting plate, therefore the present invention has a wide range of applications.
Described above is only some embodiments of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvement can also be made, these improvement should be regarded as the guarantor of the present invention
Protect scope.
Claims (6)
1. the planar broad band circular polarized antenna of a species 8-shaped, including medium substrate (1), top layer radiating element and bottom radiation
Unit, top layer radiating element are arranged at the upper surface of medium substrate (1), and bottom radiating element is arranged under medium substrate (1)
Surface, it is characterised in that the size and structure all same of the top layer radiating element and bottom radiating element, top layer radiating element
It is connected to form by top-level metallic band radiating element (3) and top-level metallic half-wave dipole unit (5), bottom radiating element is by bottom
Metal band radiating element (2) and underlying metal half-wave dipole unit (4) are connected to form；
Top layer radiating element and bottom radiating element are placed relative to medium substrate in class 8-shaped antisymmetry；Wherein：Top-level metallic
Half-wave dipole unit (5) is connected by the first metallic vias (6) with underlying metal band radiating element (2), top-level metallic bar
Band radiating element (3) is connected by the second metallic vias (7) with underlying metal half-wave dipole unit (4)；
The planar broad band circular polarized antenna is balanced in the center breaking part (8) of top-level metallic half-wave dipole unit (5)
Feed, the core of underlying metal half-wave dipole unit (4) remain closed；
Or the planar broad band circular polarized antenna is balanced in the center breaking part of underlying metal half-wave dipole unit (4)
Feed, the core of top-level metallic half-wave dipole unit (5) remain closed.
2. the planar broad band circular polarized antenna of class 8-shaped according to claim 1, it is characterised in that the top-level metallic
Band radiating element (3) is straight line, circular arc or right angle.
3. the planar broad band circular polarized antenna of class 8-shaped according to claim 1, it is characterised in that the underlying metal
Band radiating element (2) is straight line, circular arc or right angle.
4. the planar broad band circular polarized antenna of class 8-shaped according to claim 1, it is characterised in that the planar broad band
Circular polarized antenna is fed using symmetrical two-wire feed structure (9), and the symmetrical two-wire feed structure (9) is by two signals
Line symmetrically accesses the center breaking part of top-level metallic half-wave dipole unit (5) or underlying metal half-wave dipole unit (4), protects
Hold electrical connection.
5. the planar broad band circular polarized antenna of class 8-shaped according to claim 1, it is characterised in that the planar broad band
Circular polarized antenna is fed using microstrip line-symmetrical two-wire transformational structure.
6. the planar broad band circular polarized antenna of class 8-shaped according to claim 1, it is characterised in that the top layer radiation
Unit or bottom radiating element are provided with reflecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510864638.4A CN105406180B (en) | 2015-12-01 | 2015-12-01 | The planar broad band circular polarized antenna of one species 8-shaped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510864638.4A CN105406180B (en) | 2015-12-01 | 2015-12-01 | The planar broad band circular polarized antenna of one species 8-shaped |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105406180A CN105406180A (en) | 2016-03-16 |
| CN105406180B true CN105406180B (en) | 2018-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510864638.4A Expired - Fee Related CN105406180B (en) | 2015-12-01 | 2015-12-01 | The planar broad band circular polarized antenna of one species 8-shaped |
Country Status (1)
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078768A (en) * | 2014-05-30 | 2014-10-01 | 中国电子科技集团公司第十研究所 | Broadband broad-angle circular polarization overlapping microstrip antenna |
| CN104617380A (en) * | 2015-01-08 | 2015-05-13 | 南京邮电大学 | Plane aperture-symmetric ring combined antenna with circularly-polarized end emission characteristics |
-
2015
- 2015-12-01 CN CN201510864638.4A patent/CN105406180B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078768A (en) * | 2014-05-30 | 2014-10-01 | 中国电子科技集团公司第十研究所 | Broadband broad-angle circular polarization overlapping microstrip antenna |
| CN104617380A (en) * | 2015-01-08 | 2015-05-13 | 南京邮电大学 | Plane aperture-symmetric ring combined antenna with circularly-polarized end emission characteristics |
Non-Patent Citations (1)
| Title |
|---|
| Printed Figure-of-Eight Wire Antenna for Circular Polarization;Rong-Lin Li;《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》;20021031;第50卷(第10期);第1487-1490页 * |
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| Publication number | Publication date |
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| CN105406180A (en) | 2016-03-16 |
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Inventor after: Jin Xiuhua Inventor after: Zhang Jing Inventor after: Huang Xiaodong Inventor before: Huang Xiaodong Inventor before: Zhang Jing Inventor before: Jin Xiuhua |
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Effective date of registration: 20180809 Address after: 210003 9, Zhongshan North Road 301, Gulou District, Nanjing, Jiangsu. Patentee after: YUANJIANG INFORMATION TECHNOLOGY Co.,Ltd. Address before: 210023 9 Wen Yuan Road, Ya Dong new town, Nanjing, Jiangsu. Patentee before: NANJING University OF POSTS AND TELECOMMUNICATIONS |
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Granted publication date: 20180213 Termination date: 20211201 |