CN101931125A - Micro-strip dipole antenna with feed network - Google Patents
Micro-strip dipole antenna with feed network Download PDFInfo
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- CN101931125A CN101931125A CN2010101084716A CN201010108471A CN101931125A CN 101931125 A CN101931125 A CN 101931125A CN 2010101084716 A CN2010101084716 A CN 2010101084716A CN 201010108471 A CN201010108471 A CN 201010108471A CN 101931125 A CN101931125 A CN 101931125A
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- feeder line
- printed board
- micro
- joint
- vertical part
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Abstract
The invention provides a micro-strip dipole antenna with a feed network, relating to the technical field of communication and broadcasting. The micro-strip dipole antenna with a feed network aims to solve the technical problems of narrow working frequency band, huge size, heavier weight, complicated debugging, poor consistence of finished products, low stability and the like existing in the traditional dipole antenna product. The micro-strip dipole antenna comprises a micro-strip dipole (1) and a feed network (2) which are respectively printed on both surfaces of a T-shaped printed board, wherein the feed network (2) is formed by sequentially connecting a first feeder (3), a second feeder (4) and a third feeder (5). The micro-strip dipole antenna is suitable for the technical fields of communication, broadcasting and the like.
Description
Technical field
The present invention relates to communication technical field, a kind ofly especially be used to communicate by letter and the micro-strip dipole antenna of technical field such as broadcasting.
Background technology
Existing dipole antenna is many on the current market makes of metal tube material and bar, has following deficiency:
1. owing to mainly adopt metal tube material and bar, not only cause working band narrow, and volume is heavy greatly again, technological process is complicated, the cost height, and consistency is poor;
2. because consistency is poor, debugging is got up and is required great effort very much, and element antenna was out of order and difficult exchange during the group battle array was used, and caused maintenance to incur loss through delay.
3. because volume is big, heavy, often need break packing during transportation, arrive the job site and often must re-assembly again, debug again, this is unfavorable for that promptly site operation also is unfavorable for on-site maintenance.
Summary of the invention
The present invention is intended to solve complicated, poor, the cost high-technology problem of finished product consistency of narrow, the bulky heaviness of working band, debugging that exists in the existing dipole antenna product, and a kind of working band is wide, the plane is integrated, volume is little to provide, the micro-strip dipole antenna of in light weight, high conformity, stability is high, cost is low band feeding network.
The objective of the invention is to be achieved through the following technical solutions.
The micro-strip dipole antenna of band feeding network of the present invention, constitute by the microstrip dipole 1 and the feeding network 2 that are printed on T type printed board two sides respectively, wherein feeding network 2 is by first segment feeder line 3, the second joint feeder line 4 and the 3rd joint feeder line 5 formation that is linked in sequence, first segment feeder line 3 is upstanding, first vertical part 9 is parallel to cannelure 6, its top connects 10 bottoms, vertical part of the second joint feeder line 4, the tail end of the top of folding part 8 and first vertical part 9 is 90 degree and intersects, the tail end of folding part 8 and 7 tops, second vertical part are 90 degree and intersect, T type printed board axis is located in second vertical part 7, and its tail end connects T type printed board bottom; The vertical part 10 of the second joint feeder line 3 is located on the extended line of first vertical part 9 of first segment feeder line 3, its top is located at the top of T type printed board and is 90 degree with transverse part 11 left ends of this section feeder line and intersects, transverse part 11 is parallel to the top of T type printed board, and the top of its right-hand member and the 3rd joint feeder line 5 is 90 degree and intersects; The vertical part 10 that the 3rd joint feeder line 5 is located at the second joint feeder line 3 is a relative side of symmetrical center line with T type printed board axis, and its tail end is positioned at the bottom of T type printed board.
The micro-strip dipole antenna of band feeding network of the present invention, the thickness of wherein said T type printed board is 2mm, dielectric constant is 2.55.
The micro-strip dipole antenna of band feeding network of the present invention, little tape thickness of wherein said three joint feeder lines is 0.03mm; The width of first segment feeder line 3 is 5.6mm, length=0.22 * light velocity/operating frequency of antenna; The width of the second joint feeder line 4 is 1.9mm, length=0.11 * light velocity/operating frequency of antenna; The width of the 3rd joint feeder line 5 is 1.9mm, length=0.14 * light velocity/operating frequency of antenna.
The beneficial effect of the micro-strip dipole antenna of band feeding network of the present invention:
1. working band is wide;
2. the plane is integrated, finished product high conformity, stability height;
3. volume is little, in light weight;
4. manufacturing cost is low, is suitable for large-scale production in batches.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is a feeding network structural representation of the present invention
The number in the figure explanation:
1 microstrip dipole, 2 feeding networks, 3 first segment feeder lines, 4 second joint feeder lines, 5 the 3rd joint feeder lines, 7 second vertical parts, 8 folding parts, 9 first vertical parts, 10 vertical parts, 11 transverse parts
Embodiment
Detailed structure of the present invention, application principle, effect and effect are illustrated by following execution mode with reference to accompanying drawing 1-2.
The micro-strip dipole antenna of band feeding network of the present invention, constitute by the microstrip dipole 1 and the feeding network 2 that are printed on T type printed board two sides respectively, wherein feeding network 2 is by first segment feeder line 3, the second joint feeder line 4 and the 3rd joint feeder line 5 formation that is linked in sequence, first segment feeder line 3 is upstanding, first vertical part 9 is parallel to cannelure 6, its top connects 10 bottoms, vertical part of the second joint feeder line 4, the tail end of the top of folding part 8 and first vertical part 9 is 90 degree and intersects, the tail end of folding part 8 and 7 tops, second vertical part are 90 degree and intersect, T type printed board axis is located in second vertical part 7, and its tail end connects T type printed board bottom; The vertical part 10 of the second joint feeder line 3 is located on the extended line of first vertical part 9 of first segment feeder line 3, its top is located at the top of T type printed board and is 90 degree with transverse part 11 left ends of this section feeder line and intersects, transverse part 11 is parallel to the top of T type printed board, and the top of its right-hand member and the 3rd joint feeder line 5 is 90 degree and intersects; The vertical part 10 that the 3rd joint feeder line 5 is located at the second joint feeder line 3 is a relative side of symmetrical center line with T type printed board axis, and its tail end is positioned at the bottom of T type printed board.
The thickness of T type printed board is 2mm, and dielectric constant is 2.55.
Little tape thickness of three joint feeder lines is 0.03mm; The width of first segment feeder line 3 is 5.6mm, length=0.22 * light velocity/operating frequency of antenna; The width of the second joint feeder line 4 is 1.9mm, length=0.11 * light velocity/operating frequency of antenna; The width of the 3rd joint feeder line 5 is 1.9mm, length=0.14 * light velocity/operating frequency of antenna.
Below the present invention is further illustrated by specific embodiment.
The operating frequency f of designing antenna
0=700MHz
Wavelength X
0=c/f
0=428mm (c is the light velocity)
The characteristic resistance of first segment feeder line 3 is 50 Ω, and the thickness that can check in little band according to reference book " microstrip circuit " is 2mm, and first segment feeder line 3 width are 5.6mm.First segment feeder line 3 length are 0.22 λ
0, be 94.2mm.
The second joint feeder line 4 is transformer sections, and the impedance of design microstrip dipole is 170 Ω, and then its impedance is
Can check in the second joint feeder line, 4 width according to " microstrip circuit " is 1.9mm.The second joint feeder line, 4 length are 0.11 λ
0, be 48.8mm.
The initial line width of the 3rd joint feeder line 5 is all 1.9mm mutually with second joint, and its length is 0.14 λ
0, be 60mm.
By the actual measurement checking, the microstrip dipole of embodiments of the invention band feeding network is little at the frequency band range standing internal wave of 600～800MHz, index meets or exceeds the conventional dipole sub antenna, as seen this design has effectively reduced antenna volume, weight, has reduced cost, for condition has been created in miniaturization, the modularized design of antenna.
The present invention in each side such as but volume, weight, stability integration, cost be low all considerably beyond traditional product.
From the above, many advantages such as the micro-strip dipole antenna with feeding network of the present invention has that working band is wide, Planar integration degree height, volume are little, in light weight, high conformity, stability is high, cost is low.
Claims (3)
1. be with the micro-strip dipole antenna of feeding network, it is characterized in that: constitute by microstrip dipole (1) that is printed on T type printed board two sides respectively and feeding network (2), wherein feeding network (2) is by first segment feeder line (3), the second joint feeder line (4) and the 3rd saves feeder line (5) formation that is linked in sequence, first segment feeder line (3) is upstanding, first vertical part (9) is parallel to cannelure (6), its top connects the bottom, vertical part (10) of the second joint feeder line (4), the tail end of the top of folding part (8) and first vertical part (9) is 90 degree and intersects, the tail end of folding part (8) and top, second vertical part (7) are 90 degree and intersect, T type printed board axis is located in second vertical part (7), and its tail end connects T type printed board bottom; The vertical part (10) of the second joint feeder line (3) is located on the extended line of first vertical part (9) of first segment feeder line (3), its top is located at the top of T type printed board and is 90 degree with transverse part (11) left end of this section feeder line and intersects, transverse part (11) is parallel to the top of T type printed board, and the top of its right-hand member and the 3rd joint feeder line (5) is 90 degree and intersects; The vertical part (10) that the 3rd joint feeder line (5) is located at the second joint feeder line (3) is a relative side of symmetrical center line with T type printed board axis, and its tail end is positioned at the bottom of T type printed board.
2. the micro-strip dipole antenna of band feeding network as claimed in claim 1 is characterized in that: the thickness of described T type printed board is 2mm, and dielectric constant is 2.55.
3. the micro-strip dipole antenna of band feeding network as claimed in claim 1 is characterized in that: little tape thickness of described three joint feeder lines is 0.03mm; The width of first segment feeder line (3) is 5.6mm, length=0.22 * light velocity/operating frequency of antenna; The width of the second joint feeder line (4) is 1.9mm, length=0.11 * light velocity/operating frequency of antenna; The width of the 3rd joint feeder line (5) is 1.9mm, length=0.14 * light velocity/operating frequency of antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101084716A CN101931125A (en) | 2010-02-10 | 2010-02-10 | Micro-strip dipole antenna with feed network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101084716A CN101931125A (en) | 2010-02-10 | 2010-02-10 | Micro-strip dipole antenna with feed network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101931125A true CN101931125A (en) | 2010-12-29 |
Family
ID=43370154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101084716A Pending CN101931125A (en) | 2010-02-10 | 2010-02-10 | Micro-strip dipole antenna with feed network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101931125A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362754A (en) * | 2000-12-31 | 2002-08-07 | 富士康(昆山)电脑接插件有限公司 | Printed microstrip dipole antenna |
| CN201163660Y (en) * | 2008-02-22 | 2008-12-10 | 深圳市远望谷信息技术股份有限公司 | Integration antenna |
-
2010
- 2010-02-10 CN CN2010101084716A patent/CN101931125A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362754A (en) * | 2000-12-31 | 2002-08-07 | 富士康(昆山)电脑接插件有限公司 | Printed microstrip dipole antenna |
| CN201163660Y (en) * | 2008-02-22 | 2008-12-10 | 深圳市远望谷信息技术股份有限公司 | Integration antenna |
Non-Patent Citations (3)
| Title |
|---|
| 何庆强等: "宽带印刷偶极子天线设计", 《2009年全国天线年会论文集(上)》, 13 October 2009 (2009-10-13), pages 145 - 148 * |
| 李峰等: "宽带平面Balun偶极子天线的FDTD分析", 《现代电子技术》, no. 7, 15 April 2003 (2003-04-15), pages 4 - 7 * |
| 江晖等: "一种宽带印刷偶极子天线的分析与设计", 《2007年全国微波毫米波会议论文集（上册）》, 20 October 2007 (2007-10-20), pages 265 - 268 * |
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Application publication date: 20101229 |