CN102610913B - Dual-polarized broadband antenna - Google Patents
Dual-polarized broadband antenna Download PDFInfo
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- CN102610913B CN102610913B CN201210115861.5A CN201210115861A CN102610913B CN 102610913 B CN102610913 B CN 102610913B CN 201210115861 A CN201210115861 A CN 201210115861A CN 102610913 B CN102610913 B CN 102610913B
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- floor
- printed circuit
- broadband antenna
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Abstract
The invention provides a dual-polarized broadband antenna. The broadband antenna comprises a floor, a first dielectric slab, a second dielectric slab and a cover plate, wherein the floor is arranged on the bottom layer; the first and second dielectric slabs are arranged on the middle layer; the cover plate is arranged on the top layer; the first dielectric slab is fixed on the floor by way of +45-degree linear polarization; the second dielectric slab is fixed on the floor by way of -45-degree linear polarization; the cover plate is fixed at the upper ends of the first and second dielectric slabs; and printed circuits are carved on the first and second dielectric slabs. The dual-polarized broadband antenna has the following beneficial effects that: the dual-polarized broadband antenna combines the antennas which are orthogonal with each other in the +45-degree and -45-degree polarization directions and simultaneously works in the receiving and transmitting modes, thus reducing the antenna quantity of a single base station; the dual-polarized broadband antenna has an ingenious and simple assembly structure, is convenient to manufacture and is suitable for volume production and the cost can be effectively lowered; and besides, distribution of the printed circuits on the first and second dielectric slabs ensures the dual-polarized broadband antenna to have the advantages of low profile and broadband.
Description
Technical field
The present invention relates to a kind of dual polarization broadband antenna, relate in particular to a kind of dual polarization wideband patch antenna for mobile communication.
Background technology
Along with the granting of China's 3G license, the mobile communications network of TD-SCDMA, WCDMA, tri-kinds of standards of CDMA2000 has all started to build and operation.The broadband wireless networks such as WiMAX drop into application more and more, along with the development of mobile communication technology, also have more high-new technology and put it into commercial operation.No matter be present or future, multiple communications applications standard the situation of depositing are inevitable.
Antenna for base station is the important component part of mobile communication system, and its characteristic directly affects the overall performance of each wireless network.Along with the continuous increase of the network coverage and capacity, the quantity rapid growth of base station and antenna for base station, its visual pollution causing is also more and more serious.In addition, outdoor utility, makes the maintenance work of antenna for base station increasingly heavy for a long time.Therefore, more optimal antenna for base station solution becomes the focus that each side pays close attention to.Therefore, make antenna for base station can cover the wide frequency range of trying one's best, for Parallel running and the minimizing antenna for base station use amount of multiple standards, significant.
Summary of the invention
The object of the invention is to for the problems referred to above, a kind of have low section, wide band dual polarization broadband antenna are provided.
For reaching above-mentioned technique effect, the present invention by the following technical solutions:
A dual polarization broadband antenna, comprises the floor that is positioned at bottom, is positioned at first medium plate and the second medium plate in middle level, and the cover plate that is positioned at top layer;
First medium plate is fixed on floor in+45 degree linear polarization modes, and second medium plate is fixed on floor in-45 degree linear polarization modes, and cover plate is fixed on the upper end of first medium plate and second medium plate;
One side of first medium plate is provided with the first printed circuit, and the first partition district that the first printed circuit is located at first medium plate middle part is longitudinally separated into two mutual disconnected isolated areas; The another side of first medium plate is provided with the second printed circuit, and the second printed circuit comprises the multistage microstrip line of series connection successively, and wherein one section of microstrip line cuts off district through first;
One side of second medium plate is provided with the 3rd printed circuit, and the second partition district that the 3rd printed circuit is located at second medium plate middle part is longitudinally separated into two mutual disconnected isolated areas; The another side of second medium plate is provided with the 4th printed circuit, and the 4th printed circuit comprises the multistage microstrip line of series connection successively, and wherein one section of microstrip line cuts off district through second.
The first printed circuit and the 3rd printed circuit and floor are electrically connected.
Described first cut off that district and second cuts off district be shaped as T font or I-shaped.
Top in the middle of first medium plate offers the first rectangular aperture, and the bottom in the middle of second medium plate offers the second rectangular aperture, and the first rectangular aperture is relative with the second rectangular aperture to be inserted, and first medium plate and the mutual square crossing of second medium plate are fixed.
The lower edge of the lower edge of first medium plate, second medium plate is respectively provided with at least two outstanding stiff ends.
Floor is provided with the rectangular channel corresponding with each stiff end of first medium plate and second medium plate lower edge, and first medium plate and second medium plate, by by each stiff end and the mutual clamping of corresponding rectangular channel, are fixed on floor.
On first medium plate, offer the first through hole, the first through hole is positioned at the middle part of one section of microstrip line; On second medium plate, offer the second through hole, the second through hole is positioned at the middle part of one section of microstrip line.
Floor is that polygon covers copper dielectric-slab or sheet metal, and cover plate is that regular polygon covers copper dielectric-slab or sheet metal.
The antenna that combined+45 degree of dual polarization broadband antenna of the present invention and-45 degree two secondary polarised directions are mutually orthogonal and be operated in simultaneously transmitting-receiving double mode under, saved the antenna amount of single base station.Its package assembly is ingenious and simple, easily manufactured, is applicable to batch production, can effectively reduce costs.In addition, the printed circuit on first medium plate and second medium plate distributes and makes dual polarization broadband antenna of the present invention have low section, wide band advantage.
Accompanying drawing explanation
Fig. 1 is the vertical view of embodiment of the present invention general structure.
Fig. 2 is the structural representation of first medium plate in the embodiment of the present invention.
Fig. 3 is the structural representation of second medium plate in the embodiment of the present invention.
Fig. 4 is the structural representation of cover plate in the embodiment of the present invention.
Fig. 5 is the structural representation on floor in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail.
As shown in Figure 1, a kind of dual polarization broadband antenna provided by the invention, comprises floor 101, first medium plate 102, second medium plate 103 and cover plate 104.On described first medium plate 102 and second medium plate 103, be all carved with printed circuit, the straight line at described first medium plate 102 places is+45 degree with the angle of positive x axle, first medium plate 102 with+45 degree linear polarization modes be fixed on floor 101 above.The straight line at described second medium plate 103 places is-45 degree with the angle of positive x axle, second medium plate 103 with-45 degree linear polarization modes be fixed on floor 101 above.Cover plate 104 is fixed on the upper end of first medium plate 102 and second medium plate 103, and the printed circuit on described first medium plate 102 and second medium plate 103 and floor 101 are electrically connected.
As shown in Figure 2, the general shape of first medium plate 102 is rectangle, and the top in the middle of it offers the first rectangular aperture 209.There are two outstanding stiff ends 211 and 210 in the upper edge of first medium plate 102, and there are two outstanding stiff ends 212 and 213 in lower edge.One side of first medium plate 102 is carved with the first printed circuit 201, the first printed circuits 201 and is located at the T font first at first medium plate 102 middle parts and cuts off district 214 and be longitudinally separated into two mutual disconnected isolated areas.The another side of first medium plate 102 is carved with the second printed circuit 202.The second printed circuit 202 is composed in series successively by the first to the 5th microstrip line 204,205,206,207 and 208, and wherein the 5th microstrip line 208 cuts off district 214 through first.For convenience of comparative illustration, Fig. 2 has adopted the technique of painting of perspective, and the first printed circuit 201 and the second printed circuit 202 are shown in same plane figure.On first medium plate 102, also offer the middle part that the first through hole 203, the first through holes 203 are positioned at the first microstrip line 204.When first medium plate 102, use when cable-fed, the outer conductor of cable is welded on the first printed circuit 201, the inner wire of cable is welded on the first microstrip line 204 through the first through hole 203.
As shown in Figure 3, the structure of second medium plate 103 is similar to first medium plate 102.The general shape of second medium plate 103 is rectangle, and the bottom in the middle of it offers the second rectangular aperture 309.There are two outstanding stiff ends 311 and 310 in the upper edge of second medium plate 103, and there are two outstanding stiff ends 312 and 313 in lower edge.One side of second medium plate 103 is carved with the 3rd printed circuit 301, the three printed circuits 301 and is located at the T font second at second medium plate 103 middle parts and cuts off district 314 and be longitudinally separated into two mutual disconnected isolated areas.The another side of second medium plate 103 is carved with the 4th printed circuit 302.The 4th printed circuit 302 is composed in series successively by the 6th to the tenth microstrip line 304,305,306,307 and 308, and wherein the tenth microstrip line 308 cuts off district 314 through second.For convenience of comparative illustration, Fig. 3 has adopted the technique of painting of perspective, and the 3rd printed circuit 301 and the 4th printed circuit 302 are shown in same plane figure.On second medium plate 103, also offer the middle part that the second through hole 303, the second through holes 303 are positioned at the 6th microstrip line 304.When second medium plate 103, use when cable-fed, the outer conductor of cable is welded on the 3rd printed circuit 301, the inner wire of cable is welded on the 6th microstrip line 304 through the second through hole 303.
As shown in Figure 4 and Figure 5, described floor 101 and cover plate 104 are attached copper dielectric-slab or sheet metal, are shaped as regular polygon.Cover plate 104 in the present embodiment for the length of side be the square of 0.5 λ, wherein, λ is the corresponding airborne wavelength of the centre frequency of antenna working frequency range.On two diagonal of cover plate 104, offer 4 rectangular channels 401, the distributing position of described 4 rectangular channels 401 is corresponding with each stiff end of first medium plate 102 and second medium plate 103 upper edges respectively.On two diagonal on floor 101, offer 4 rectangular channels 501, the distributing position of described 4 rectangular channels 501 is corresponding with each stiff end of first medium plate 102 and second medium plate 103 lower edges respectively.
The installation method of the dual polarization broadband antenna of the embodiment of the present invention is as follows:
The first step: the rectangular aperture 309 of the rectangular aperture on first medium plate 102 tops 209 being aimed to second medium plate 103 bottoms.To pressing down second medium plate 103, first medium plate 102 and the 103 cross square crossings of second medium plate are fixed together, and the lower end of the lower end of first medium plate 102 and second medium plate 103 is positioned in same level.
Second step: each stiff end of first medium plate 102 and second medium plate 103 lower edges is snapped in respectively to rectangular channel 502 corresponding on floor 101, simultaneously to pressing down first medium plate 102 and second medium plate 103, make the lower end of first medium plate 102 and second medium plate 103 near floor 101, then with tin, each stiff end and the floor 101 of first medium plate 102 and second medium plate 103 lower edges are welded together.
The 3rd step: the rectangular channel on cover plate 104 401, respectively through each stiff end corresponding to first medium plate 102 and second medium plate 103 upper edges, is then welded together each stiff end and the cover plate 104 of first medium plate 102 and second medium plate 103 upper edges with tin.In addition, also can on first medium plate 102 and second medium plate 103 floor 102 around, fix 4 support columns, then cover plate 104 is fixed on to the upper end of support column.
The antenna that combined+45 degree of dual polarization broadband antenna of the present invention and-45 degree two secondary polarised directions are mutually orthogonal and be operated in simultaneously transmitting-receiving double mode under, saved the antenna amount of single base station.Its package assembly is ingenious and simple, easily manufactured, is applicable to batch production, can effectively reduce costs.In addition, the printed circuit on first medium plate and second medium plate distributes and also makes dual polarization broadband antenna of the present invention have low section, wide band advantage.
The above embodiment has only expressed one embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (8)
1. a dual polarization broadband antenna, is characterized in that, comprises the floor that is positioned at bottom, is positioned at first medium plate and the second medium plate in middle level, and the cover plate that is positioned at top layer;
First medium plate is fixed on floor in+45 degree linear polarization modes, and second medium plate is fixed on floor in-45 degree linear polarization modes, and cover plate is fixed on the upper end of first medium plate and second medium plate;
One side of first medium plate is provided with the first printed circuit, and the first partition district that the first printed circuit is located at first medium plate middle part is longitudinally separated into two mutual disconnected isolated areas; The another side of first medium plate is provided with the second printed circuit, and the second printed circuit comprises the multistage microstrip line of series connection successively, and wherein one section of microstrip line cuts off district through first;
One side of second medium plate is provided with the 3rd printed circuit, and the second partition district that the 3rd printed circuit is located at second medium plate middle part is longitudinally separated into two mutual disconnected isolated areas; The another side of second medium plate is provided with the 4th printed circuit, and the 4th printed circuit comprises the multistage microstrip line of series connection successively, and wherein one section of microstrip line cuts off district through second;
Floor is for covering copper dielectric-slab or sheet metal, and cover plate is for covering copper dielectric-slab or sheet metal.
2. dual polarization broadband antenna according to claim 1, is characterized in that, the first printed circuit and the 3rd printed circuit and floor are electrically connected.
3. dual polarization broadband antenna according to claim 1, is characterized in that, described first cut off that district and second cuts off district be shaped as T font or I-shaped.
4. dual polarization broadband antenna according to claim 1, it is characterized in that, top in the middle of first medium plate offers the first rectangular aperture, bottom in the middle of second medium plate offers the second rectangular aperture, the first rectangular aperture is relative with the second rectangular aperture to be inserted, and first medium plate and the mutual square crossing of second medium plate are fixed.
5. dual polarization broadband antenna according to claim 1, is characterized in that, the lower edge of the lower edge of first medium plate, second medium plate is respectively provided with at least two outstanding stiff ends.
6. dual polarization broadband antenna according to claim 5, it is characterized in that, floor is provided with the rectangular channel corresponding with each stiff end of first medium plate and second medium plate lower edge, first medium plate and second medium plate, by by each stiff end and the mutual clamping of corresponding rectangular channel, are fixed on floor.
7. dual polarization broadband antenna according to claim 1, is characterized in that, offers the first through hole on first medium plate, and the first through hole is positioned at the middle part of one section of microstrip line; On second medium plate, offer the second through hole, the second through hole is positioned at the middle part of one section of microstrip line.
8. dual polarization broadband antenna according to claim 1, is characterized in that, floor is that polygon covers copper dielectric-slab or sheet metal, and cover plate is that regular polygon covers copper dielectric-slab or sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210115861.5A CN102610913B (en) | 2012-04-19 | 2012-04-19 | Dual-polarized broadband antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210115861.5A CN102610913B (en) | 2012-04-19 | 2012-04-19 | Dual-polarized broadband antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102610913A CN102610913A (en) | 2012-07-25 |
| CN102610913B true CN102610913B (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210115861.5A Active CN102610913B (en) | 2012-04-19 | 2012-04-19 | Dual-polarized broadband antenna |
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| Country | Link |
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| CN (1) | CN102610913B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7639198B2 (en) * | 2005-06-02 | 2009-12-29 | Andrew Llc | Dipole antenna array having dipole arms tilted at an acute angle |
| CN201018007Y (en) * | 2006-12-01 | 2008-02-06 | 华南理工大学 | Dual-polarization T type matching folded dipole base station antenna |
| CN201156586Y (en) * | 2008-02-04 | 2008-11-26 | 南京恩瑞特实业有限公司 | Micro strip double polarized antenna unit of swept-back type |
| CN201918502U (en) * | 2010-12-07 | 2011-08-03 | 南京恩瑞特实业有限公司 | Broadband high-isolation dual-polarization antenna unit adopting strip line structure |
| CN202564542U (en) * | 2012-04-19 | 2012-11-28 | 广东博纬通信科技有限公司 | Dual polarization wideband antenna |
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2012
- 2012-04-19 CN CN201210115861.5A patent/CN102610913B/en active Active
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| Publication number | Publication date |
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| CN102610913A (en) | 2012-07-25 |
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Inventor after: Zhang Zhiguang Inventor after: Luo Cuiqiong Inventor before: Wu Biqun Inventor before: Ye Lianghua Inventor before: Su Zhenhua |
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