CN1937313A - Double frequency antenna unit for mobile terminal and low-coupling multi-antenna comprising same - Google Patents
Double frequency antenna unit for mobile terminal and low-coupling multi-antenna comprising same Download PDFInfo
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- CN1937313A CN1937313A CN 200610117040 CN200610117040A CN1937313A CN 1937313 A CN1937313 A CN 1937313A CN 200610117040 CN200610117040 CN 200610117040 CN 200610117040 A CN200610117040 A CN 200610117040A CN 1937313 A CN1937313 A CN 1937313A
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- portable terminal
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Abstract
The dual frequency antenna unit in use for mobile terminal is composed of radiating element, dielectric plate, ground plate, and feeding port. Being arranged from outer layer to inner layer combined closely, the radiating element, dielectric plate, and ground plate is rolled into cylindrical or helical. There is a gap on the radiating element. The dual frequency antenna unit can work at two different frequency points, and possesses more than 270 degrees beamwidth in horizontal plane. Features are: simple structure, small volume, and antenna unit produced through method of printing circuit possibly. Multiple dual frequency antenna units can constitute compact multi antennae in low coupling.
Description
Technical field
What the present invention relates to is a kind of antenna that is used for communication technical field, the especially a kind of dual-band antenna unit of portable terminal and low-coupling multi antenna of composition thereof of being used for.
Background technology
In the prior art, generally adopt single whip antenna or helical antenna at communication terminal, size is than the Shanghai Communications University.Though improved afterwards microstrip antenna or inverse-F antenna have reduced size, omni-directional is very poor, can only be used for positioning transceiving.In the prior art, generally adopt single antenna at communicating terminal, it is low to gain, poor anti jamming capability.There is minority to adopt many antennas, but, makes the antenna element spacing very big in order to eliminate the influence of mutual coupling.Thereby make the antenna cumulative volume very big, be not easy to carry.
Find through literature search prior art, China's (patent) application number 02126816.9, patent publication No. 1399368, patent name is: the double antenna that can control radiation characteristic in a kind of folding type mobile communication terminal, this double antenna comprises first directional antenna on the folded part that is installed in communication terminal, and is installed in second directional antenna on the main body of communication terminal.In fact just second directional antenna is in running order always for this double antenna, and first directional antenna is just assisted the radiation field of adjusting communication terminal when conversation, two antennas can't use as two antenna elements independently, and the gain of antenna was very low when this also made non-talking state.On the other hand, owing to adopt directional antenna,, can't realize that also omnidirectional signal receives even two antennas are worked simultaneously.
Also find in the retrieval, in November, 2003, people such as TayebA.Denidni was at IEEE TRANSACTIONS ONVEHICULAR TECHNOLOGY (vehicle-mounted technology), 52 the 6th phases of volume were delivered " ExperimentalInvestigations of a New Adaptive Dual-Antenna Array for HandsetApplications (a kind of new self adaptation double antenna battle array experimental study that is used for mobile phone) ", adopt double antenna and adaptive algorithm to realize smart antenna at portable terminal, two antenna element spacings are half-wavelength, can realize two independently antenna elements.But when operating frequency was the 1000MHz left and right sides, the antenna element spacing was too big, and antenna is difficult to place at portable terminal.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and defective, a kind of dual-band antenna unit of portable terminal and low-coupling multi antenna of composition thereof of being used for is provided, promptly provide a kind of easy to process can be at the wound packages printing dual-band antenna of horizontal plane broadening directional diagram, and be that the portable terminal low-coupling multi antenna is formed in the unit with this wound packages printing dual-band antenna, inter-cell separation is little, and it is also very little to be coupled.
The present invention is achieved by the following technical solutions:
The dual-band antenna unit that is used for portable terminal of the present invention comprises: radiating element, dielectric-slab, ground plate and feed port.
Described radiating element is the sheet metal in a crack with seam.Sheet metal is attached on the described dielectric-slab, is ground plate below the dielectric-slab, and this three ply board is combined closely, and integral body is rolled into certain angle or tubular or helical form.The adjacent described ground plate of described feed port, and be positioned at the ground plate enclosed space, described feed port inner wire link to each other with radiating element after passing ground plate and dielectric-slab, and the feed port outer conductor links to each other with ground plate.
For the single dual-band antenna unit that is used for portable terminal, can pass through feed port direct feed, by radiating element electromagnetic signal is launched then.With the dual-band antenna unit shaft that is used for portable terminal in vertical plane, the 3dB width of aerial radiation wave beam can be above 180 °.This antenna element equally also can be used for electromagnetic signal and receives.
The present invention also provides a kind of low-coupling multi antenna of being made up of a plurality of described dual-band antenna unit that are used for portable terminal, and there is following arrangement mode a plurality of described dual-band antenna unit that are used for portable terminal:
First kind, the dual-band antenna unit that respectively is used for portable terminal can be arranged in low-coupling multi antenna by axially parallel; Second kind, the dual-band antenna unit that respectively is used for portable terminal closely is arranged in low-coupling multi antenna vertically.Also can arrange by the combination of these two kinds of arrangement modes.
For first kind of arrangement mode, adjacent two central shaft spacings that are used for the dual-band antenna unit of portable terminal can be reduced to 1/4th of higher resonance frequency institute corresponding wavelength.
For second kind of arrangement mode, adjacent two ground plates that are used for the dual-band antenna unit of portable terminal can hold together, and adjacent two dielectric-slabs that are used for the dual-band antenna unit of portable terminal also can hold together.
For these two kinds of low-coupling multi antenna arrangement modes, the dual-band antenna unit that respectively is used for portable terminal can independent power feeding work, also can become aerial array work with phase combination by the signal amplitude of feed port that the certain weight adjustment respectively is used for the dual-band antenna unit of portable terminal.
The present invention is used for the dual-band antenna unit of portable terminal and the low-coupling multi antenna of composition thereof, is used for portable terminal and transmits and receives electromagnetic wave, and it is simple in structure, and volume is little, can adopt the method processing of printed circuit.And this dual-band antenna unit that is used for portable terminal can be two different frequency work, and beamwidth can be greater than 270 ° in horizontal plane.Compact low-coupling multi antenna can be formed in a plurality of dual-band antenna unit that are used for portable terminal.
Description of drawings
Fig. 1 is a kind of dual-band antenna unit three-dimensional structural representation that is used for portable terminal of the present invention.
Fig. 2 is a kind of exhibition longitudinal cross-section, dual-band antenna unit schematic diagram that is used for portable terminal of the present invention.
Fig. 3 is that a kind of two tubular printing dual-band antenna unit shaft of portable terminal that are used for of the present invention are to the schematic diagram that is arranged in parallel.
Fig. 4 is a kind of two schematic diagrames that tubular printing dual-band antenna unit is arranged vertically that are used for portable terminal of the present invention.
Embodiment
As shown in Figure 1 and Figure 2, the dual-band antenna unit that present embodiment is used for portable terminal comprises: radiating element 1, dielectric-slab 2, ground plate 3 and feed port 4.
Described radiating element 1, dielectric-slab 2 and ground plate 3 ecto-entad layer distributed, and combine closely, and be rolled into tubular by integral body.
A slit is arranged on the described radiating element 1.
Described feed port 4 is positioned at this cylindrical body inside, and adjacent ground plate 3, the inner wire of described feed port 4 link to each other with antenna element after passing ground plate and dielectric-slab, and the outer conductor of described feed port 4 links to each other with ground plate 3.
As shown in Figure 3, two identical in structure are used for the dual-band antenna unit shaft of portable terminal to the formation low-coupling multi antenna that is arranged in parallel.
As shown in Figure 4, the dual-band antenna unit that two identical in structure are used for portable terminal is arranged vertically, constitutes low-coupling multi antenna.Two ground plates that are used for the dual-band antenna unit of portable terminal can hold together, and adjacent two dielectric-slabs that are used for the dual-band antenna unit of portable terminal also can hold together.
Example 1:
Single dual-band antenna unit that is used for portable terminal, full-size is: high is 64mm, maximum gauge 25mm, the near side (ns) 25mm of clearance distance, correlated performance parameter distributions result is: the S parameter of dual-band antenna unit that is used for portable terminal is at the curve of frequency domain, near 800MHz and 1900MHz, all less than-10dB, the 3dB beamwidth during frequency 800MHz on horizontal plane is greater than 270 ° for the S parameter.
Example 2:
Two dual-band antenna unit shaft that are used for portable terminal in the employing example 1 are to being arranged in parallel, central shaft is 30mm at interval, correlated performance parameter distributions result is: when two dual-band antenna unit that are used for portable terminal work independently separately, the S parameter of dual-band antenna unit that is used for portable terminal is at the curve of frequency domain, near 800MHz and 1900MHz, the S parameter is all less than-10dB, two are used for coupling between the dual-band antenna unit of portable terminal less than-10dB, and the 3dB beamwidth during frequency 800MHz on horizontal plane is greater than 270 °.
Example 3:
Adopt two dual-band antenna unit that are used for portable terminal in the example 1 to arrange vertically, height overall is 128mm, correlated performance parameter distributions result is: when two dual-band antenna unit that are used for portable terminal work independently separately, the S parameter of dual-band antenna unit that is used for portable terminal is at the curve of frequency domain, near 800MHz and 1900MHz, the S parameter is all less than-10dB, and two are used for coupling between the dual-band antenna unit of portable terminal less than-10dB.When work simultaneously in two dual-band antenna unit that are used for portable terminal, omnidirectional radiation almost on horizontal plane.
Claims (6)
1, a kind of dual-band antenna unit that is used for portable terminal, comprise: antenna radiation unit, dielectric-slab, ground plate and feed port, it is characterized in that, described radiating element is the sheet metal in a crack with seam, sheet metal is attached on the described dielectric-slab, is ground plate below the dielectric-slab, and this three ply board is combined closely, integral body is rolled into certain angle or tubular or helical form, the adjacent described ground plate of described feed port.
2, a kind of dual-band antenna unit that is used for portable terminal as claimed in claim 1 is characterized in that described feed port is positioned at the ground plate enclosed space.
As claim 1 or 2 described a kind of dual-band antenna unit that are used for portable terminal, it is characterized in that 3, described feed port inner wire links to each other with radiating element after passing ground plate and dielectric-slab, the feed port outer conductor links to each other with ground plate.
4, a kind of low-coupling multi antenna of forming by the described dual-band antenna of claim 1 unit, it is characterized in that, a plurality of described dual-band antenna unit cell arrangement that are used for portable terminal become low-coupling multi antenna, and its arrangement mode comprises: first kind, each antenna element axially parallel is arranged in a plurality of antennas; Second kind, each antenna element closely is arranged in many antennas vertically, perhaps arranges by the combination of above-mentioned two kinds of arrangement modes.
5, low-coupling multi antenna as claimed in claim 4 is characterized in that, for first kind of arrangement mode, adjacent two described central shaft spacings that are used for the dual-band antenna unit of portable terminal are reduced to 1/4th of higher resonance frequency institute corresponding wavelength.
6, low-coupling multi antenna as claimed in claim 4, it is characterized in that, for second kind of arrangement mode, adjacent two described ground plates that are used for the dual-band antenna unit of portable terminal hold together, and adjacent two dielectric-slabs that are used for the dual-band antenna unit of portable terminal also hold together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610117040XA CN1937313B (en) | 2006-10-12 | 2006-10-12 | Double frequency antenna unit for mobile terminal and low-coupling multi-antenna comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610117040XA CN1937313B (en) | 2006-10-12 | 2006-10-12 | Double frequency antenna unit for mobile terminal and low-coupling multi-antenna comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1937313A true CN1937313A (en) | 2007-03-28 |
| CN1937313B CN1937313B (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610117040XA Expired - Fee Related CN1937313B (en) | 2006-10-12 | 2006-10-12 | Double frequency antenna unit for mobile terminal and low-coupling multi-antenna comprising same |
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| CN (1) | CN1937313B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102099960A (en) * | 2008-07-14 | 2011-06-15 | 莱尔德技术股份有限公司 | Multi-band antenna assemblies for use with wireless application devices |
| CN108321520A (en) * | 2018-03-27 | 2018-07-24 | 四川斐讯信息技术有限公司 | A kind of antenna structure |
| CN108777348A (en) * | 2018-06-26 | 2018-11-09 | 联想(北京)有限公司 | A kind of electronic equipment |
| CN112018502A (en) * | 2019-05-29 | 2020-12-01 | 华为技术有限公司 | Communication equipment shell assembly, communication equipment and manufacturing method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6414647B1 (en) * | 2001-06-20 | 2002-07-02 | Massachusetts Institute Of Technology | Slender omni-directional, broad-band, high efficiency, dual-polarized slot/dipole antenna element |
| CN1564375A (en) * | 2004-04-08 | 2005-01-12 | 上海交通大学 | Method of controlling double-frequency microband antenna resonance frequency |
-
2006
- 2006-10-12 CN CN200610117040XA patent/CN1937313B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102099960A (en) * | 2008-07-14 | 2011-06-15 | 莱尔德技术股份有限公司 | Multi-band antenna assemblies for use with wireless application devices |
| CN102099960B (en) * | 2008-07-14 | 2015-08-12 | 莱尔德技术股份有限公司 | For the multi-band antenna assemblies of wireless application device |
| US9136603B2 (en) | 2008-07-14 | 2015-09-15 | Laird Technologies, Inc. | Multi-band dipole antenna assemblies for use with wireless application devices |
| CN108321520A (en) * | 2018-03-27 | 2018-07-24 | 四川斐讯信息技术有限公司 | A kind of antenna structure |
| CN108777348A (en) * | 2018-06-26 | 2018-11-09 | 联想(北京)有限公司 | A kind of electronic equipment |
| CN108777348B (en) * | 2018-06-26 | 2020-07-24 | 联想(北京)有限公司 | Electronic equipment |
| US10944160B2 (en) | 2018-06-26 | 2021-03-09 | Lenovo (Beijing) Co., Ltd. | Electronic device |
| CN112018502A (en) * | 2019-05-29 | 2020-12-01 | 华为技术有限公司 | Communication equipment shell assembly, communication equipment and manufacturing method |
| CN112018502B (en) * | 2019-05-29 | 2022-04-12 | 华为技术有限公司 | Communication equipment shell assembly, communication equipment and manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1937313B (en) | 2011-04-20 |
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