CN103682580B - Multi-band antenna - Google Patents
Multi-band antenna Download PDFInfo
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- CN103682580B CN103682580B CN201210344278.1A CN201210344278A CN103682580B CN 103682580 B CN103682580 B CN 103682580B CN 201210344278 A CN201210344278 A CN 201210344278A CN 103682580 B CN103682580 B CN 103682580B
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- arm
- earth plate
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- transverse arm
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Abstract
The invention discloses a multi-band antenna which comprises a longitudinal grounding plate, a first longitudinal arm parallel to the grounding plate, a connecting arm for connecting the grounding plate with the first longitudinal arm, and a first horizontal arm extending from the first longitudinal arm to the grounding plate, wherein the grounding plate is provided with a longitudinal edge extending in a longitudinal direction; the first longitudinal arm extends in the longitudinal direction, is spaced from the grounding plate, and is provided with a first tail end and a second tail end, which are opposite to each other; the second tail end of the first longitudinal arm is connected with the longitudinal edge of the grounding plate through the connecting arm; the first horizontal arm extends from the part, close to the first tail end, of the first longitudinal arm to the grounding plate, is spaced from the grounding plate, and is provided with a signal feeder point; the first longitudinal arm is divided into two radiation parts with different lengths by the first horizontal arm, and the radiation parts are positioned on the two sides of the first horizontal arm. Compared with the prior art, the multi-band antenna has the advantages that the radiation efficiency is improved to a certain extent, and the radiation isolation degree is improved.
Description
【Technical field】
The present invention relates to a kind of multifrequency antenna.
【Background technology】
In mobile computer, especially under the conditions of the mechanism of all-metal magnalium back-cover, aerial position is forced to move on to and turns
Between axle and body.But, the screen effect being in this mechanism position for aerial radiation affects seriously, to lead to PIFA antenna spoke
Penetrate efficiency not good.And, the cable that this mechanism position is easily carried out the axis of rotation by other occupies suitable multiposition so that putting antenna
Bulk be greatly restricted, lead to adjacent PIFA isolation between antennas not good.
Therefore, it is necessary to design a kind of multifrequency antenna to overcome the problems referred to above.
【Content of the invention】
It is an object of the invention to provide a kind of multifrequency antenna of lifting radiation efficiency.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that：A kind of multifrequency antenna, including the ground connection of lengthwise
The plate first lengthwise arm parallel with earth plate, connect the linking arm of described earth plate and the first lengthwise arm and from the first lengthwise
Arm extends, to earth plate, the first transverse arm being formed, and described earth plate has a lengthwise edge extending along longitudinally, and described the
One lengthwise arm is extended along above-mentioned longitudinally and is spaced apart with earth plate, described first lengthwise arm have relative first end and
Second end, described linking arm connects the second end of the first lengthwise arm and the lengthwise edge of described earth plate, and described first is horizontal
Extend to earth plate direction at first end to arm from the first lengthwise arm and be spaced apart with earth plate, the first transverse arm is provided with
Signal feed-in point, the first lengthwise arm is divided into the Department of Radiation that two length positioned at its both sides differ by the first transverse arm.
Compared with prior art, electric connector of the present invention at least has advantages below：Multifrequency antenna relative radiation of the present invention
Efficiency has been lifted and has increased radiation isolation.
【Brief description】
Fig. 1 is the stereogram of multifrequency antenna of the present invention.
Fig. 2 is the front view of Fig. 1 multifrequency antenna of the present invention.
Fig. 3 is the left view of Fig. 1 multifrequency antenna of the present invention
【Specific embodiment】
To describe the specific embodiment of multifrequency antenna 100 of the present invention below in conjunction with the accompanying drawings in detail.
Refer to shown in Fig. 1 to Fig. 3, multifrequency antenna 100 of the present invention is made up of metallic plate die cut, multifrequency antenna 100
Earth plate 10 including lengthwise and the Department of Radiation being located at the extension of earth plate one lengthwise edge, the concrete structure of Department of Radiation will below
Introduce.Earth plate 10 is provided with some holes 101 at another lengthwise edge, for fixed antenna.
Described Department of Radiation includes the first lengthwise arm 21, the first transverse arm 23 and the second transverse arm 24, described first lengthwise arm
21 is to extend along above-mentioned longitudinally and be spaced apart with earth plate 10, and the first lengthwise arm has relative first end 211 and the
Two ends 210, second end 210 is connected to the lengthwise edge of above-mentioned earth plate by a linking arm 22.First transverse arm 23 is certainly
First lengthwise arm 21 is extended to earth plate 10 direction at first end 211 and is spaced apart with earth plate, the first transverse arm 23
It is provided with signal feed-in point 230, coaxial transmission line will be welded in the end of the first transverse arm, form signal feed-in point.First is horizontal
To arm 23, first lengthwise arm is divided into the Department of Radiation that two length positioned at its both sides differ, the shorter Department of Radiation of length 31 is in inverted L
Shape.Second transverse arm 24 is to extend from the first lengthwise arm to earth plate, the second transverse arm be located at the first transverse arm and linking arm it
Between, in order to adjust the matching impedance of above-mentioned Department of Radiation.
Described second transverse arm 24 is more than the width of the first transverse arm, being located at of the first lengthwise arm along the width of longitudinally
Between first transverse arm and the second transverse arm the transverse width of part 213 be less than the first lengthwise arm positioned at the second transverse arm and company
Connect the transverse width of part 214 between arm, in the present embodiment, width is at least twice.
In an embodiment of the present invention, earth plate 10 further includes auxiliary earth plate 11, and described linking arm is connected to auxiliary
Adjuvant grafting floor in being generally aligned in the same plane with auxiliary earth plate.Auxiliary earth plate 11 is recessed at corresponding above-mentioned first transverse arm 23
There is opening 111, the free terminal 112 at corresponding first lengthwise arm first end 210 extends to the first lengthwise arm direction and surpasses
Cross the free terminal of the first transverse arm 23.First transverse arm 23 bends (drawing shows two folding lines) through twice, permissible from Fig. 2
Find out, first time folding line is identical with the folding line of the second transverse arm 24, the end line of second folding line and the second transverse arm is with always
Online, the end line of the first transverse arm and the top edge 113 of auxiliary earth plate are located at always on.The freedom of auxiliary earth plate
End is located at always on second folding line of the first transverse arm.The all convenient description of described first, second name nominating,
Have no sequencing.
The operation principle of signal radiation is described below.First lengthwise arm is divided into left and right two parts by the first transverse arm 23,
Form the first Department of Radiation 31 and the second Department of Radiation 32.From signal feed-in point 230 along the right half (drawing) of the first lengthwise arm and even
Connect arm, until the junction with earth plate, this part formation first antenna active section (as shown in the chain-dotted line of Fig. 2), this first
Antenna Operation section is resonated out relatively low operational frequency bands with circuit form.Left half from signal feed-in point along the first lengthwise arm is formed
Second Antenna Operation section (as is shown in phantom in fig. 3), the second Antenna Operation section is resonated out higher operational frequency bands with PIFA form.
Simultaneously in the appropriate position that signal feed-in is intersegmental with ground connection, simultaneously complete using above-mentioned second transverse arm 24 (i.e. impedance match portion)
Become the impedance matching of high and low operational frequency bands.
Using the antenna being equivalent to mixing LOOP/PIFA pattern, it can lift radiation efficiency, antenna is significantly increased the present invention
Isolation.
The foregoing is only one embodiment of the present invention, be not all of or unique embodiment, this area is common
Any equivalent change that technical staff is taken to technical solution of the present invention by reading description of the invention, is the present invention
Claim covered.
Claims (9)
1. a kind of multifrequency antenna, including the earth plate of the lengthwise first lengthwise arm parallel with earth plate, connect described earth plate and
The linking arm of the first lengthwise arm and from the first lengthwise arm to earth plate extend formed the first transverse arm it is characterised in that：Institute
State earth plate have along longitudinally extend lengthwise edge, described first lengthwise arm extend along above-mentioned longitudinally and with ground connection
Plate is spaced apart, and described first lengthwise arm has relative first end and second end, and described linking arm connects the first lengthwise arm
Second end and described earth plate, described first transverse arm prolongs to earth plate direction at first end from the first lengthwise arm
Stretch and be spaced apart with earth plate, the first transverse arm is provided with signal feed-in point, the first lengthwise arm is divided into positioned at it the first transverse arm
First Department of Radiation of both sides and the second Department of Radiation, described second Department of Radiation connects to described linking arm, from signal feed-in point along
One transverse arm, the second Department of Radiation, linking arm are until form first antenna active section, described first antenna with the junction of earth plate
Active section is resonated out relatively low operational frequency bands with circuit form, described first lengthwise arm be provided with to earth plate extend second horizontal
Arm, the second transverse arm is located between the first transverse arm and linking arm, and the coupling in order to adjust described first, second Department of Radiation hinders
Anti-.
2. multifrequency antenna as claimed in claim 1 it is characterised in that：Described second transverse arm is more than along the width of longitudinally
The width of the first transverse arm.
3. multifrequency antenna as claimed in claim 2 it is characterised in that：Described first lengthwise arm positioned at the first transverse arm and
Between two transverse arms, the transverse width of part is less than the horizontal stroke positioned at part between the second transverse arm and linking arm of the first lengthwise arm
To width.
4. multifrequency antenna as claimed in claim 3 it is characterised in that：More described second radiation of length of described first Department of Radiation
Portion is short, and this first Department of Radiation is in inverted L-shaped.
5. multifrequency antenna as claimed in claim 3 it is characterised in that：Described earth plate further includes auxiliary earth plate, on
State in linking arm is connected to auxiliary earth plate and is generally aligned in the same plane with auxiliary earth plate.
6. multifrequency antenna as claimed in claim 5 it is characterised in that：Described auxiliary earth plate is in corresponding above-mentioned first transverse arm
Place is arranged with opening.
7. multifrequency antenna as claimed in claim 5 it is characterised in that：Described auxiliary earth plate has corresponding first lengthwise arm the
The free terminal of one end, this free terminal extends and the free terminal more than the first transverse arm to the first lengthwise arm direction.
8. multifrequency antenna as claimed in claim 6 it is characterised in that：The end of described first transverse arm is towards earth plate lateral bending
Folding.
9. multifrequency antenna as claimed in claim 1 it is characterised in that：Described first transverse arm bends through twice, for the first time
Folding line is identical with the folding line of the second transverse arm, and the end of second folding line and the second transverse arm is located at same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210344278.1A CN103682580B (en) | 2012-09-18 | 2012-09-18 | Multi-band antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210344278.1A CN103682580B (en) | 2012-09-18 | 2012-09-18 | Multi-band antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103682580A CN103682580A (en) | 2014-03-26 |
| CN103682580B true CN103682580B (en) | 2017-02-08 |
Family
ID=50319354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210344278.1A Active CN103682580B (en) | 2012-09-18 | 2012-09-18 | Multi-band antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103682580B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444861B (en) * | 2019-08-07 | 2021-06-22 | 浙江金乙昌科技股份有限公司 | Three-frequency miniaturized pure metal Pifa antenna containing V2X frequency band |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1742406A (en) * | 2002-10-10 | 2006-03-01 | 圣韵无线技术公司 | Narrow width dual/tri ISM band PIFA for wireless applications |
| CN2840344Y (en) * | 2005-09-27 | 2006-11-22 | 哗裕实业股份有限公司 | Double-frequency antenna structure |
| TWM309222U (en) * | 2005-09-02 | 2007-04-01 | Wha Yu Ind Co Ltd | Multi-band antenna |
| CN101369683A (en) * | 2007-08-15 | 2009-02-18 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency antenna |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000244232A (en) * | 1999-02-17 | 2000-09-08 | Ngk Spark Plug Co Ltd | Micro-strip antenna |
| CN2872621Y (en) * | 2006-03-02 | 2007-02-21 | 汉达精密电子(昆山)有限公司 | Double-frequency antenna |
| CN201352597Y (en) * | 2009-01-10 | 2009-11-25 | 富港电子（东莞）有限公司 | Multi-frequency antenna |
| TWM378495U (en) * | 2009-10-23 | 2010-04-11 | Unictron Technologies Corp | Miniature multi-frequency antenna |
-
2012
- 2012-09-18 CN CN201210344278.1A patent/CN103682580B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1742406A (en) * | 2002-10-10 | 2006-03-01 | 圣韵无线技术公司 | Narrow width dual/tri ISM band PIFA for wireless applications |
| TWM309222U (en) * | 2005-09-02 | 2007-04-01 | Wha Yu Ind Co Ltd | Multi-band antenna |
| CN2840344Y (en) * | 2005-09-27 | 2006-11-22 | 哗裕实业股份有限公司 | Double-frequency antenna structure |
| CN101369683A (en) * | 2007-08-15 | 2009-02-18 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103682580A (en) | 2014-03-26 |
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