CN102610913A - Dual-polarized broadband antenna - Google Patents
Dual-polarized broadband antenna Download PDFInfo
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- CN102610913A CN102610913A CN2012101158615A CN201210115861A CN102610913A CN 102610913 A CN102610913 A CN 102610913A CN 2012101158615 A CN2012101158615 A CN 2012101158615A CN 201210115861 A CN201210115861 A CN 201210115861A CN 102610913 A CN102610913 A CN 102610913A
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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 that is used for mobile communication.
Background technology
Along with the granting of China's 3G license, the mobile communications network of TD-SCDMA, WCDMA, three kinds of standards of CDMA2000 has all begun to build and operation.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 now or future, multiple communications applications standard and the situation of depositing are inevitable.
Antenna for base station is the important component part of GSM, and its characteristic directly influences the overall performance of each wireless network.Along with the continuous increase of the network coverage and capacity, the quantity of base station and antenna for base station increases fast, and its visual pollution that causes is also more and more serious.In addition, outdoor utility makes that the maintenance work of antenna for base station is heavy day by day 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 multiple standards and deposit and use and reduce the antenna for base station use amount, significant.
Summary of the invention
The objective of the invention is to provides a kind of have low section, wide band dual polarization broadband antenna to the problems referred to above.
For reaching above-mentioned technique effect, the present invention adopts following technical scheme:
A kind of dual polarization broadband antenna comprises the floor that is positioned at bottom, is positioned at first dielectric-slab and second dielectric-slab in middle level, and the cover plate that is positioned at top layer;
First dielectric-slab is fixed on the floor with+45 degree linear polarization modes, and second dielectric-slab is fixed on the floor with-45 degree linear polarization modes, and cover plate is fixed in the upper end of first dielectric-slab and second dielectric-slab;
One side of first dielectric-slab is provided with first printed circuit, and the first partition district that first printed circuit is located at first dielectric-slab middle part vertically separates into two mutual disconnected isolated areas; The another side of first dielectric-slab is provided with second printed circuit, and second printed circuit comprises the multistage microstrip line of series connection successively, and wherein one section microstrip line passes the first partition district;
One side of second dielectric-slab is provided with the 3rd printed circuit, and the second partition district that the 3rd printed circuit is located at second dielectric-slab middle part vertically separates into two mutual disconnected isolated areas; The another side of second dielectric-slab 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 microstrip line passes the second partition district.
First printed circuit and the 3rd printed circuit and floor electrically connect.
Said first cut off district and second cut off distinguish be shaped as T font or I-shaped.
Top in the middle of first dielectric-slab offers first rectangular aperture, and the bottom in the middle of second dielectric-slab offers second rectangular aperture, and first rectangular aperture and second rectangular aperture insert relatively, and first dielectric-slab and the mutual square crossing of second dielectric-slab are fixed.
The lower edge of the lower edge of first dielectric-slab, second dielectric-slab respectively is provided with at least two outstanding stiff ends.
The floor is provided with the corresponding rectangular channel of each stiff end with first dielectric-slab and the second dielectric-slab lower edge, and first dielectric-slab and second dielectric-slab are fixed on the floor through with each stiff end and the mutual clamping of corresponding rectangular channel.
Offer first through hole on first dielectric-slab, first through hole is positioned at the middle part of one section microstrip line; Offer second through hole on second dielectric-slab, second through hole is positioned at the middle part of one section microstrip line.
The 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.
Dual polarization broadband antenna of the present invention made up+the mutually orthogonal antenna of 45 degree and-45 degree two consequent pole directions and to be operated in transmitting-receiving simultaneously double mode down, saved the antenna amount of single base station.Its package assembly is ingenious and simple, and is easily manufactured, is fit to produce in batches, can effectively reduce cost.In addition, the printed circuit on first dielectric-slab and second dielectric-slab distributes and makes dual polarization broadband antenna of the present invention have low section, wide band advantage.
Description of drawings
Fig. 1 is the vertical view of embodiment of the invention general structure.
Fig. 2 is the structural representation of first dielectric-slab in the embodiment of the invention.
Fig. 3 is the structural representation of second dielectric-slab in the embodiment of the invention.
Fig. 4 is the structural representation of cover plate in the embodiment of the invention.
Fig. 5 is the structural representation on floor in the embodiment of the invention.
Embodiment
To combine accompanying drawing and concrete embodiment that the present invention is done further detailed description below.
As shown in Figure 1, a kind of dual polarization broadband antenna provided by the invention comprises floor 101, first dielectric-slab 102, second dielectric-slab 103 and cover plate 104.All be carved with printed circuit on said first dielectric-slab 102 and second dielectric-slab 103, the straight line at said first dielectric-slab 102 place is+45 degree with the angle of positive x axle, promptly first dielectric-slab 102 with+45 degree linear polarization modes be fixed on floor 101 above.The straight line at said second dielectric-slab 103 place is-45 degree with the angle of positive x axle, promptly second dielectric-slab 103 with-45 degree linear polarization modes be fixed on floor 101 above.Cover plate 104 is fixed on the upper end of first dielectric-slab 102 and second dielectric-slab 103, and printed circuit on said first dielectric-slab 102 and second dielectric-slab 103 and floor 101 electrically connect.
As shown in Figure 2, the general shape of first dielectric-slab 102 is a rectangle, and the top between wherein offers first rectangular aperture 209.There are two outstanding stiff ends 211 and 210 in the upper edge of first dielectric-slab 102, and there are two outstanding stiff ends 212 and 213 in the lower edge.One side of first dielectric-slab 102 is carved with first printed circuit, 201, the first printed circuits 201 and is located at the T font first at first dielectric-slab, 102 middle parts and cuts off district 214 and vertically separate into two mutual disconnected isolated areas.The another side of first dielectric-slab 102 is carved with second printed circuit 202.Second printed circuit 202 is composed in series by first to the 5th microstrip line 204,205,206,207 and 208 successively, and wherein the 5th microstrip line 208 passes the first partition district 214.For making things convenient for comparative illustration, Fig. 2 has adopted the technique of painting of perspective, and first printed circuit 201 and second printed circuit 202 are shown in the same plane graph.Also offer first through hole, 203, the first through holes 203 on first dielectric-slab 102 and be positioned at the middle part of first microstrip line 204.When first dielectric-slab 102 is used when cable-fed, the outer conductor of cable is welded on first printed circuit 201, the inner wire of cable passes first through hole 203 and is welded on first microstrip line 204.
As shown in Figure 3, the structure of second dielectric-slab 103 is similar with first dielectric-slab 102.The general shape of second dielectric-slab 103 is a rectangle, and the bottom between wherein offers second rectangular aperture 309.There are two outstanding stiff ends 311 and 310 in the upper edge of second dielectric-slab 103, and there are two outstanding stiff ends 312 and 313 in the lower edge.One side of second dielectric-slab 103 is carved with the 3rd printed circuit 301, the three printed circuits 301 and is located at the T font second at second dielectric-slab, 103 middle parts and cuts off district 314 and vertically separate into two mutual disconnected isolated areas.The another side of second dielectric-slab 103 is carved with the 4th printed circuit 302.The 4th printed circuit 302 is composed in series by the 6th to the tenth microstrip line 304,305,306,307 and 308 successively, and wherein the tenth microstrip line 308 passes the second partition district 314.For making things convenient for 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 the same plane graph.Also offer second through hole, 303, the second through holes 303 on second dielectric-slab 103 and be positioned at the middle part of the 6th microstrip line 304.When second dielectric-slab 103 is used when cable-fed, the outer conductor of cable is welded on the 3rd printed circuit 301, the inner wire of cable passes second through hole 303 and is welded on the 6th microstrip line 304.
Like Fig. 4 and shown in Figure 5, said floor 101 and cover plate 104 are shaped as regular polygon for attaching copper dielectric-slab or sheet metal.Cover plate 104 in the present embodiment is the square of 0.5 λ for the length of side, and 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 said 4 rectangular channels 401 each stiff end with first dielectric-slab 102 and second dielectric-slab, 103 upper edges respectively is corresponding.On two diagonal on floor 101, offer 4 rectangular channels 501, the distributing position of said 4 rectangular channels 501 each stiff end with first dielectric-slab 102 and second dielectric-slab, 103 lower edges respectively is corresponding.
The installation method of the dual polarization broadband antenna of the embodiment of the invention is following:
The first step: the rectangular aperture 309 of the rectangular aperture 209 on first dielectric-slab, 102 tops being aimed at second dielectric-slab, 103 bottoms.To pressing down second dielectric-slab 103, first dielectric-slab 102 and the 103 cross square crossings of second dielectric-slab are fixed together, and the lower end of the lower end of first dielectric-slab 102 and second dielectric-slab 103 is positioned on the same horizontal plane.
Second step: each stiff end of first dielectric-slab 102 and second dielectric-slab, 103 lower edges is snapped in rectangular channel 502 corresponding on the floor 101 respectively; Simultaneously to pressing down first dielectric-slab 102 and second dielectric-slab 103; The lower end that makes first dielectric-slab 102 and second dielectric-slab 103 welds together with each stiff end and the floor 101 of tin with first dielectric-slab 102 and second dielectric-slab, 103 lower edges near floor 101 then.
The 3rd step: the rectangular channel on the cover plate 104 401 is passed each corresponding stiff end of first dielectric-slab 102 and second dielectric-slab, 103 upper edges respectively, weld together with each stiff end and the cover plate 104 of tin then with first dielectric-slab 102 and second dielectric-slab, 103 upper edges.In addition, also can on the floor 102 around first dielectric-slab 102 and second dielectric-slab 103, fix 4 support columns, again cover plate 104 is fixed on the upper end of support column.
Dual polarization broadband antenna of the present invention made up+the mutually orthogonal antenna of 45 degree and-45 degree two consequent pole directions and to be operated in transmitting-receiving simultaneously double mode down, saved the antenna amount of single base station.Its package assembly is ingenious and simple, and is easily manufactured, is fit to produce in batches, can effectively reduce cost.In addition, the printed circuit on first dielectric-slab and second dielectric-slab 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 claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, 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 accompanying 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 dielectric-slab and second dielectric-slab in middle level, and the cover plate that is positioned at top layer;
First dielectric-slab is fixed on the floor with+45 degree linear polarization modes, and second dielectric-slab is fixed on the floor with-45 degree linear polarization modes, and cover plate is fixed in the upper end of first dielectric-slab and second dielectric-slab;
One side of first dielectric-slab is provided with first printed circuit, and the first partition district that first printed circuit is located at first dielectric-slab middle part vertically separates into two mutual disconnected isolated areas; The another side of first dielectric-slab is provided with second printed circuit, and second printed circuit comprises the multistage microstrip line of series connection successively, and wherein one section microstrip line passes the first partition district;
One side of second dielectric-slab is provided with the 3rd printed circuit, and the second partition district that the 3rd printed circuit is located at second dielectric-slab middle part vertically separates into two mutual disconnected isolated areas; The another side of second dielectric-slab 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 microstrip line passes the second partition district.
2. dual polarization broadband antenna according to claim 1 is characterized in that, first printed circuit and the 3rd printed circuit and floor electrically connect.
3. dual polarization broadband antenna according to claim 1 is characterized in that, said first cut off district and second cut off distinguish 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 dielectric-slab offers first rectangular aperture; Bottom in the middle of second dielectric-slab offers second rectangular aperture, and first rectangular aperture and second rectangular aperture insert relatively, and first dielectric-slab and the mutual square crossing of second dielectric-slab are fixed.
5. dual polarization broadband antenna according to claim 1 is characterized in that, the lower edge of the lower edge of first dielectric-slab, second dielectric-slab respectively is provided with at least two outstanding stiff ends.
6. dual polarization broadband antenna according to claim 5; It is characterized in that; The floor is provided with the corresponding rectangular channel of each stiff end with first dielectric-slab and the second dielectric-slab lower edge; First dielectric-slab and second dielectric-slab are fixed on the floor through with each stiff end and the mutual clamping of corresponding rectangular channel.
7. dual polarization broadband antenna according to claim 1 is characterized in that, offers first through hole on first dielectric-slab, and first through hole is positioned at the middle part of one section microstrip line; Offer second through hole on second dielectric-slab, second through hole is positioned at the middle part of one section microstrip line.
8. dual polarization broadband antenna according to claim 1 is characterized in that, the 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 true CN102610913A (en) | 2012-07-25 |
| CN102610913B 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) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060273865A1 (en) * | 2005-06-02 | 2006-12-07 | Timofeev Igor E | Dipole antenna array |
| 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 |
-
2012
- 2012-04-19 CN CN201210115861.5A patent/CN102610913B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060273865A1 (en) * | 2005-06-02 | 2006-12-07 | Timofeev Igor E | Dipole antenna array |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102610913B (en) | 2014-07-23 |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhang Zhiguang Inventor after: Luo Cuiqiong Inventor before: Wu Biqun Inventor before: Ye Lianghua Inventor before: Su Zhenhua |
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Inventor after: Wu Biqun Inventor after: Zhang Zhiguang Inventor after: Luo Cuiqiong Inventor before: Zhang Zhiguang Inventor before: Luo Cuiqiong |
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Free format text: CORRECT: INVENTOR; FROM: ZHANG ZHIGUANG LUO CUIQIONG TO: WU BIQUN ZHANG ZHIGUANG LUO CUIQIONG |