CN1147967C - Printed dipole antenna - Google Patents
Printed dipole antennaInfo
- Publication number
- CN1147967C CN1147967C CNB001371274A CN00137127A CN1147967C CN 1147967 C CN1147967 C CN 1147967C CN B001371274 A CNB001371274 A CN B001371274A CN 00137127 A CN00137127 A CN 00137127A CN 1147967 C CN1147967 C CN 1147967C
- Authority
- CN
- China
- Prior art keywords
- dipole antenna
- printed
- antenna
- circuit board
- dipole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The present invention relates to a printed dipole antenna which comprises a printed antenna circuit board, two dipole antennas and two feeding devices, wherein the printed antenna circuit board comprises a first and a second surfaces which are opposite to each other, the two dipole antennas respectively comprise two dipole units, and the two dipole units are respectively arranged on the opposite first surface and the second surface of the printed antenna circuit board. The two dipole antennas are perpendicularly arranged in space, and the two feeding devices are used for respectively feeding the two dipole antennas. Two of three radiation planes of X to Y, X to Z, Y to Z, etc. in the space can have favorable sending and receiving effect via a double feed-in switching mechanism and the perpendicular arrangement of the antenna in the space.
Description
Invention is relevant a kind of printed dipole antenna, refers in particular to a kind of printed dipole antenna that electronic installation is realized the wireless communication signal transmitting-receiving that is built in.
Dipole antenna can effectively transmit and receive electromagnetic wave because of it, so each field that is widely used in communicating by letter.In existing many electronic installations, many is to select single dipole antenna for use.But on 3 radiator plane such as X-Y, the X-Z of single dipole antenna in 3d space, Y-Z, often can only make one of them radiator plane that best radiation effect is arranged, and ignore the radiation on two planes in addition, cause the wireless receiving and dispatching poor effect.Moreover general used feeder equipment takes up room bigger, and structure is comparatively complicated, does not meet light, thin, short, the little trend of current electronic installation.
Related art is as the United States Patent (USP) the 4th of bulletin on August 12nd, 1986,605, shown in No. 931, this antenna is the microstrip antenna that adopts the intersection feeder line, comprise some to first feeder line and second feeder line, this first feeder line and the second feeder line coplane intersect placement, the feeder line of every pair of intersection placement is provided with first, second, third and fourth port, wherein first port and second port are used for transmitting first signal to each other, the 3rd port and the 4th port are used to transmit secondary signal, adopt this kind method, and the mutual interference of signal phase is little, can effectively eliminate feedback, but the structure more complicated.
And for example a kind of circular circular polarization microstrip antenna design of being disclosed for No. 87112281 of the TaiWan, China patent application of on May 1st, 2000 bulletin with adjustable short metal patch, it adds an adjustable short metal patch in the circular metal patch edges of microstrip antenna, and the feed-in position becomes on the 45 degree cross spiders at short metal patch therewith, wherein the feed-in mode of antenna can be the direct feed-in of the also available microstrip line of coaxial line feed-in, and the circular metal paster is produced in the ground connection substrate.Prove that through experiment measuring this antenna has receiving feature preferably at X-Y and Y-Z plane, but it is cumbersome on making, can not be one-body molded, and it is big to take up room.
The objective of the invention is provides a kind of electronic installation inside that is used at the defective that above-mentioned prior art exists, and the handover mechanism by dual polarised radiation is to obtain the printed dipole antenna that preferable diversity reception effect can effectively reduce antenna size simultaneously.
The objective of the invention is to be achieved through the following technical solutions: the present invention includes a printed antenna circuit board, first, two liang of dipole antennas and two feeder equipments, described printed antenna circuit board has opposite first and second surface, first dipole antenna has first doublet unit and second doublet unit, second dipole antenna has the 3rd doublet unit and the 4th doublet unit, first doublet unit of aforementioned first dipole antenna and second dipole antenna and second doublet unit and the 3rd doublet unit and the 4th doublet unit branch are located at the relative both sides of printed antenna circuit board, described two feeder equipments are respectively to aforementioned two dipole antenna feeds.
Compared to prior art, printed dipole antenna of the present invention, owing to adopt double-fed to go into handover mechanism and the vertical setting spatially of two dipole antenna orientation, cooperate external device (ED) can make X-Y in the space, X-Z, three radiator plane of Y-Z wherein both have preferable radiation effect.
The present invention is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the plane graph of printed dipole antenna of the present invention;
Fig. 2 is the stereogram of printed dipole antenna of the present invention;
Fig. 3 is the radiation effect figure of one of them dipole antenna of printed dipole antenna of the present invention on the X-Z plane;
Fig. 4 is the radiation effect figure of another even antenna of printed dipole antenna of the present invention on the Y-Z plane;
Fig. 5 is the voltage standing wave ratio resolution chart of printed dipole antenna of the present invention.
By plane graph illustrated in figures 1 and 2 and stereogram as can be seen, printed dipole antenna 1 of the present invention comprises first dipole antenna 2, second dipole antenna 3, printed antenna circuit board 4 and feeder equipment 8,8 '.Wherein printed antenna circuit board 4 has opposite first 41 and second surface 42, first dipole antenna 2 is made up of first doublet unit 21 and second doublet unit 22, and 3 of second dipole antennas are made up of the 3rd doublet unit 31 and the 4th doublet unit 4.And aforementioned first and third doublet unit 21,31 is arranged on the first surface 41 of printed circuit board (PCB) 4 orthogonally, the second, four doublet units 22,32 are arranged on the second surface 42 of printed circuit board (PCB) 4 in addition orthogonally, first and second doublet unit 21,22 is arranged on the two opposite sides of antenna printed circuit board (PCB) 4, third and fourth doublet unit 31,32 is also same, so this two dipole antenna 2,3 is in vertical distribution on the space.These doublet units 21,22,31,32 are all T type structure, to save the space.Distributing point 5,5 ', 6,6 ' is distributed in the vertical edges end of T type structure, promptly roughly be positioned at the center of printed circuit board (PCB) 4, wherein feeder equipment 8 (being coaxial cable in the present embodiment) is connected with distributing point 5,5 ', another feeder equipment 8 ' (being coaxial cable in the present embodiment) is connected with distributing point 6,6 ', is provided with and make two feeder equipments 8,8 ' be staggered.Aforementioned feeder equipment 8,8 ' carries out feed to two dipole antennas 2,3 respectively, switches by the feed between this two feeder equipment of external circuit may command 8,8 ', make three radiator plane such as X-Y, X-Z, Y-Z wherein both have preferable radiation effect.Aforesaid distributing point 5,5 ', 6,6 ' can be moved to the side of printed circuit board (PCB) simultaneously by the center of printed circuit board (PCB) 4, be about to the base sides adjacent that distributing point 5,5 ', 6,6 ' is arranged at doublet unit 21,22,31,32, with the influence of the cabling mode that reduces feed line to antenna performance.
In the disclosed embodiment of the present invention, the segment length's edge lengths that one of links to each other with distributing point of T type paster that constitutes two doublet units 21,22 of first dipole antenna 2 is L4, and two bond length on perpendicular both sides are respectively L5, L6; The segment length's edge lengths that one of links to each other with distributing point of T type paster that constitutes two doublet units of dipole antenna 3 is L1, and two perpendicular bond length are respectively L2, L3; And the distance between distributing point 6 ' and the distributing point 5 ' is G1, and the distance between distributing point 5 and the distributing point 6 ' is G2, and the distance between distributing point 5 and the distributing point 6 is G3, and the distance between distributing point 6 and the distributing point 5 ' is G4.Wherein, L1=L4, L2=L3=L5=L6, and G1=G2=G3=G4.
Fig. 3 is the radiation diagram of first dipole antenna 2 on the X-Z plane, Fig. 4 is the radiation diagram of second dipole antenna 3 on the Y-Z plane, and as can be seen, t-antenna 1/2 peak value rises in value from Fig. 3 and Fig. 4, can reach at X-Z with on the Y-Z plane-1.0/-0.5 (dBi), can distinguish and effectively dominate the X-Z/Y-Z plane.
Fig. 5 is that the test data of one of the present invention voltage standing wave ratio (VSWR) is graphic, by among the figure as can be known, under frequency range 2.4-2.5GHZ, the voltage standing wave ratio (VSWR) of first and second dipole antenna 2,3 all can reach the design specification requirement of VSWR＜2.0.
Because VSWR is the ratio of judging feed antenna energy under frequency, judge the antenna characteristic under the frequency range therewith in view of the above.And in general voltage standing wave(VSW) ratio is rationally greater than 1, industrywide standard (that is is only returned SWR＜2.0 usually less than 10% energy reflection, all the other see through aerial radiation and go out) frequency band, be decided to be reasonable and effective frequency band range, so the antenna that developed of Antenna Design person, (as blue bud Bluetooth system, radio area network Wireless LAN, 2.4-2.5GHZ) must reach the scope of SWR＜2.0 under the requirement frequency range.
So, printed dipole antenna of the present invention, go into handover mechanism and the vertical setting spatially of two dipole antenna orientation by double-fed, cooperate outside can make X-Y, X-Z, Y-Z radiator plane wherein both have preferable radiation effect, Antenna Design reaches the design specification requirement.
Printed dipole antenna 1 of the present invention can be made according to the following steps:
1. first dipole antenna 2, second dipole antenna 3 vertically are laid in the relative first surface 41 and the second surface 42 of antenna printed circuit board (PCB) 4, make first doublet unit 21, second doublet unit 22 of dipole antenna 2 lay respectively at printed circuit board (PCB) 4 first surfaces 41 and second surface 42 with the 3rd doublet unit 31, the 4th doublet unit 32 of dipole antenna 3;
2. with feeder equipment 8,8 ' is connected to first dipole antenna 2 and second dipole antenna 3, and by being connected in feeder equipment 8,8 ' external circuit realizes that feed switches.
In sum, the present invention has obvious effect and promotes, and can be applicable to the transmit/receive antenna of notebook, Bluetooth, wireless communication modules such as Wireless LAN, 2.4-2.5GH.
Claims (14)
1. printed dipole antenna, it comprises a printed antenna circuit board, first, two liang of dipole antennas and two feeder equipments, described printed antenna circuit board has opposite first and second surface, it is characterized in that: first dipole antenna has first doublet unit and second doublet unit, second dipole antenna has the 3rd doublet unit and the 4th doublet unit, first doublet unit of aforementioned first dipole antenna and second dipole antenna and second doublet unit and the 3rd doublet unit and the 4th doublet unit branch are located at the first surface and the second surface of printed antenna circuit board, described two feeder equipments are respectively to aforementioned two dipole antenna feeds.
2. printed dipole antenna as claimed in claim 1, it is characterized in that: first doublet unit of described first dipole antenna and the 3rd doublet unit of second dipole antenna are arranged on the first surface of printed antenna circuit board, and the 4th doublet unit of second doublet unit of first idol and antenna and second idol and antenna is located at the second surface of printed antenna circuit board.
3. printed dipole antenna as claimed in claim 2 is characterized in that: described first and second dipole antenna is mutual vertical distribution.
4. printed dipole antenna as claimed in claim 3 is characterized in that: the doublet unit of described first and second dipole antenna is a T type structure.
5. printed dipole antenna as claimed in claim 4 is characterized in that: first doublet unit of described first dipole antenna and the 3rd doublet unit of second dipole antenna are the positions in adjacent two sides of printed antenna circuit board similar face and vertical mutually.
6. printed dipole antenna as claimed in claim 5 is characterized in that: second doublet unit of described first dipole antenna and the 4th doublet unit of second dipole antenna are to be positioned at adjacent two sides of printed antenna circuit board similar face and vertical mutually.
7. printed dipole antenna as claimed in claim 6 is characterized in that: described doublet unit is provided with distributing point, and feeder equipment is by the electric feed of this feedback point.
8. printed dipole antenna as claimed in claim 7 is characterized in that: described distributing point is to be positioned at the end of the T type structure of doublet unit towards the center position of printed antenna circuit board.
9. printed dipole antenna as claimed in claim 7 is characterized in that: described distributing point is the side that is positioned at the printed antenna circuit board.
10. printed dipole antenna as claimed in claim 8 is characterized in that: after two feeder equipments were electrically connected with the distributing point of first dipole antenna and second dipole antenna respectively, this two feeder equipment was to be staggered to be provided with.
11. printed dipole antenna as claimed in claim 10 is characterized in that: this feeder equipment is a coaxial cable.
12. the manufacture method of a printed dipole antenna as claimed in claim 1 is characterized in that: it may further comprise the steps:
One printed antenna circuit board is provided;
Two dipole antennas are provided, and each dipole antenna comprises two doublet units respectively;
Above-mentioned several dipole antennas are laid on relative two surfaces at the printed antenna circuit board, make two doublet units of each dipole antenna lay respectively at relative two surfaces of printed circuit board (PCB);
Feeder equipment with aforementioned dipole antenna respective numbers is provided;
Above-mentioned feeder equipment is connected to corresponding dipole antenna, and realizes that by the external circuit that is connected in feeder equipment feed switches.
13. the manufacture method of printed dipole antenna as claimed in claim 12 is characterized in that: described dipole antenna is arranged in mutually perpendicular mode.
14. the manufacture method of printed dipole antenna as claimed in claim 13 is characterized in that: two doublet units of dipole antenna are laid in the relative both sides of printed antenna circuit board respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001371274A CN1147967C (en) | 2000-12-31 | 2000-12-31 | Printed dipole antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001371274A CN1147967C (en) | 2000-12-31 | 2000-12-31 | Printed dipole antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1362755A CN1362755A (en) | 2002-08-07 |
| CN1147967C true CN1147967C (en) | 2004-04-28 |
Family
ID=4597677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001371274A Expired - Fee Related CN1147967C (en) | 2000-12-31 | 2000-12-31 | Printed dipole antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1147967C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372172C (en) * | 2005-07-01 | 2008-02-27 | 清华大学 | Four planes antenna system in use for mobile terminals in multiple input/output communication system |
| CN102097683A (en) * | 2009-12-14 | 2011-06-15 | 环旭电子股份有限公司 | Dipole antenna and dipole antenna combination |
| CN102064383B (en) * | 2010-10-20 | 2014-07-02 | 佛山市健博通电讯实业有限公司 | 2.4/5.8GHz dual-frequency MIMO (Multiple Input Multiple Output) omnidirectional antenna |
| CN103515695B (en) | 2012-06-16 | 2016-05-04 | 富士康(昆山)电脑接插件有限公司 | Plate aerial |
| US9768513B2 (en) * | 2015-05-08 | 2017-09-19 | Google Inc. | Wireless access point |
| CN106469845B (en) * | 2015-08-18 | 2018-11-20 | 启碁科技股份有限公司 | Antenna assembly and the electronic device for using this antenna assembly |
| CN108649326B (en) * | 2018-04-20 | 2021-03-09 | 台州市吉吉知识产权运营有限公司 | Polarization reconfigurable antenna, reconfiguration method and MIMO system |
| EP4022715A1 (en) * | 2019-09-18 | 2022-07-06 | Huawei Technologies Co., Ltd. | Beam diversity by smart antenna without passive elements |
-
2000
- 2000-12-31 CN CNB001371274A patent/CN1147967C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1362755A (en) | 2002-08-07 |
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Legal Events
| Date | Code | Title | Description |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 137127.4 of the invention patents in this issue as a notice of authorization, and at the same time corresponding to the 268994.4 utility model patent to be given up, and in the 20 volume of the 17 issue of the new type of communique on the patent right to abandon the announcement. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040428 Termination date: 20100201 |