CN103682577B - Multifrequency antenna - Google Patents
Multifrequency antenna Download PDFInfo
- Publication number
- CN103682577B CN103682577B CN201210317643.XA CN201210317643A CN103682577B CN 103682577 B CN103682577 B CN 103682577B CN 201210317643 A CN201210317643 A CN 201210317643A CN 103682577 B CN103682577 B CN 103682577B
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- rectangular slab
- substrate
- feed
- multifrequency antenna
- lines
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Abstract
The present invention provides a kind of multifrequency antenna.This multifrequency antenna includes a substrate, two feed-in lines and ground.This substrate includes a first surface and a second surface, and the first surface being arranged on this substrate that these two feed-in lines are symmetrical, this ground is arranged on the second surface of this substrate.This substrate includes a substrate body and an extension, and this extension includes one first rectangular slab, one second rectangular slab and one the 3rd rectangular slab.This first rectangular slab and the second rectangular slab are parallel to each other, and each parallel to a limit of this substrate body, the 3rd rectangular slab vertically connects this first rectangular slab, this second rectangular slab and this substrate body in the midpoint of the first rectangular slab and this second rectangular slab.These two feed-in lines are L-shaped, are separately positioned on the both sides of the 3rd rectangular slab, and including a mutually perpendicular First Line and one second line, these two First Lines are connected to the first surface of this substrate body, and these two second-line free ends are away from each other.Use the present invention, make multifrequency antenna have reduced size and preferable isolation.
Description
Technical field
The present invention relates to a kind of multifrequency antenna.
Background technology
Along with the function of electronic installation gets more and more, an antenna can not meet the demand of people's radio communication,
A lot of electronic installations all have multiple antenna to receive different wireless signals, such as WiFi, GSM etc..Although
There is multi-frequency antenna device, it is achieved the function of multiple antennas, but the size of these antenna
The biggest, isolation is poor, therefore needs to provide a kind of multifrequency with reduced size and preferable isolation
Antenna.
Summary of the invention
In view of this, thus need to provide a kind of multifrequency antenna with reduced size and preferable isolation.
This multifrequency antenna includes a substrate, two feed-in lines and ground.This substrate includes a first surface and one
Two surfaces, the first surface being arranged on this substrate that these two feed-in lines are symmetrical, this ground is arranged on this substrate
Second surface.This substrate includes a substrate body and an extension, this extension include one first rectangular slab,
One second rectangular slab and one the 3rd rectangular slab.This first rectangular slab and the second rectangular slab are parallel to each other, and the most flat
Row is in a limit of this substrate body, and the 3rd rectangular slab is at the first rectangular slab and the midpoint of this second rectangular slab
Place is vertical connects this first rectangular slab, this second rectangular slab and this substrate body.These two feed-in lines are in " L "
Shape, is separately positioned on the both sides of the 3rd rectangular slab, including a mutually perpendicular First Line and one second line,
These two First Lines are connected to the first surface of this substrate body, and these two second-line free ends are away from each other.
Compared to prior art, the present invention, by arranging an extension on the substrate of an antenna, makes this extension
Portion and two feed-in lines of this antenna constitute two antennas the radiation-curable and wireless signal of two frequency ranges of reception.
Accompanying drawing explanation
Fig. 1-2 is the schematic diagram of the multifrequency antenna in first embodiment of the invention.
Fig. 3 is the schematic diagram of the multifrequency antenna in second embodiment of the invention.
Fig. 4 is the electric characteristic figure of the multifrequency antenna in the second embodiment.
Main element symbol description
| Multifrequency antenna | 1、2 |
| Substrate | 10 |
| First feed-in line | 20 |
| Second feed-in line | 21 |
| Ground | 30 |
| First surface | 11 |
| Second surface | 12 |
| Substrate body | 13 |
| Extension | 14 |
| First rectangular slab | 141 |
| Second rectangular slab | 142 |
| 3rd rectangular slab | 143 |
| First Line | 22 |
| Second line | 23 |
| Rectangular metal band | 40 |
| Via | 41 |
| First curve | 51 |
| Second curve | 52 |
| 3rd curve | 53 |
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
As shown in Figure 1-2, for the schematic diagram of the multifrequency antenna 1 in first embodiment of the invention.This multifrequency sky
Line 1 includes substrate 10,1 first feed-in line 20,1 second feed-in line 21 and ground 30, and this substrate 10 wraps
Include first surface 11 and a second surface 12.This two feed-in lines 20 and 21 symmetry be arranged on this substrate
The first surface 11 of 10, this ground 30 is arranged on the second surface 12 of this substrate.
This substrate 10 includes substrate body 13 and an extension 14.This extension 14 includes one first rectangle
Plate 141,1 second rectangular slab 142 and one the 3rd rectangular slab 143.This first rectangular slab 141 and second rectangle
Plate 142 is parallel to each other, and each parallel to a limit of this substrate body 13.3rd rectangular slab 143 is
The midpoint of one rectangular slab 141 and this second rectangular slab 142 vertically connect this first rectangular slab 141, this second
Rectangular slab 142 and this substrate body 13.In present embodiment, this first rectangular slab 141 is near this substrate originally
Body 13, and this first rectangular slab 141 to the second rectangular slab 142 is long, this first rectangular slab 141, second rectangle
Plate 142 and the 3rd rectangular slab 143 form one " scholar " shape.
These two feed-in lines 20 and 21 are L-shaped, are separately positioned on the both sides of the 3rd rectangular slab 143, bag
Including mutually perpendicular First Line 22 and one second line 23, these two First Lines 22 are connected to this substrate body
13, and it is positioned at the first surface 11 of this substrate 10, the free end of these two the second lines 23 is away from each other.Should
On two the second lines 23 space between this first rectangular slab 141 and second rectangular slab 142, this is years old
The width of two wires 23 can be less than or equal to the width in this space, it is possible to more than the width in this space.This is first years old
Feed-in line 20 and this extension 14 cooperatively form a first antenna (not shown), this second feed-in line 21 with should
Extension 14 cooperatively forms one second antenna (not shown).And this feed-in line 20 and 21 and this extension 14
Cooperation make each antenna radiation-curable and receive there is one first frequency band and the electromagnetic wave signal of one second frequency band.
And due to these two feed-in lines 20 and 21 two the second lines 23 free end away from each other, and this extension
14 " scholar " shape structures with symmetry, therefore this first antenna and the second antenna have preferable isolation.
In present embodiment, by the distance regulating this first rectangular slab 141 and substrate body 13 regulate this
The frequency range of one frequency band, by regulate the distance between the second rectangular slab 142 and the first rectangular slab 141 regulate this
The frequency range of two frequency bands.In present embodiment, should also by the length adjustment regulating this first rectangular slab 141
The centre frequency of the first frequency band, by regulating in this second frequency band of length adjustment of this second rectangular slab 142
Frequency of heart.
As it is shown on figure 3, be the schematic diagram of the multifrequency antenna 2 in second embodiment of the invention.This multifrequency antenna
2 add again two rectangular metal bands 40 on the basis of multifrequency antenna 1, these 40 points of two rectangular metal bands
Be not arranged on the inner side of these two feed-in lines 20 and 21, and respectively with the second of these two feed-in lines 20 and 21
Line 23 is parallel, and one end of these two rectangular metal bands 40 is connected to this substrate body 13, and by a via
41 (VIA holes) electrically connect with the ground 30 of the second surface 12 of substrate body 13, and the other end is unsettled.
As shown in Figure 4, for the electric characteristic figure of multifrequency antenna in the present invention 2, including one first curve 51,
One second curve 52 and one the 3rd curve 53.This first curve 51 is 20 FD feeds of this first feed-in line
Return loss (return loss) curve map, this second curve 52 is these 21 FD feeds of the second feed-in line
Return loss plot figure, the 3rd curve 53 is the isolation between first antenna and the second antenna.This enforcement
In mode, the working frequency range that this antenna 1 is to be realized is 2.3～2.7GHz and 3.3～3.8GHz, from figure
Going out, this first curve 51 and the second curve 52 all include this two frequency ranges, and first antenna and the second antenna
Isolation is the most all at below-10db.
Claims (6)
1. a multifrequency antenna, including a substrate, two feed-in lines and ground, this substrate include a first surface and
One second surface, the first surface being arranged on this substrate that these two feed-in lines are symmetrical, this ground is arranged on this base
The second surface of plate, it is characterised in that:
This substrate includes a substrate body and an extension, this extension include one first rectangular slab, one second
Rectangular slab and one the 3rd rectangular slab, this first rectangular slab and the second rectangular slab be parallel to each other, and each parallel to this
One limit of substrate body, the 3rd rectangular slab is vertical in the midpoint of the first rectangular slab and this second rectangular slab
Connect this first rectangular slab, this second rectangular slab and this substrate body；
These two feed-in lines are L-shaped, are separately positioned on the both sides of the 3rd rectangular slab, including orthogonal
A First Line and one second line, these two First Lines are connected to the first surface of this substrate body, these two
Away from each other, this first rectangular slab is near this substrate body, and this first rectangular slab ratio for second-line free end
Second rectangular slab is long, and this first rectangular slab, the second rectangular slab and the 3rd rectangular slab form one " scholar " shape.
2. multifrequency antenna as claimed in claim 1, it is characterised in that this feed-in line coordinates spoke with this extension
Penetrate and receive and there is one first frequency band and the electromagnetic wave signal of one second frequency band.
3. multifrequency antenna as claimed in claim 2, it is characterised in that by regulating this first rectangular slab and base
The distance of plate body regulates the frequency range of this first frequency band, by regulating between the second rectangular slab and the first rectangular slab
Distance regulate the frequency range of this second frequency band.
4. multifrequency antenna as claimed in claim 2, it is characterised in that by regulating the length of this first rectangular slab
Degree regulates the centre frequency of this first frequency band, by regulating this second frequency band of length adjustment of this second rectangular slab
Centre frequency.
5. multifrequency antenna as claimed in claim 1, it is characterised in that this multifrequency antenna working frequency range is
2.3～2.7GHz and 3.3～3.8GHz.
6. multifrequency antenna as claimed in claim 1, it is characterised in that this multifrequency antenna also includes two rectangles
Metal tape, these two rectangular metal bands are separately positioned on the inner side of these two feed-in lines, and respectively with these two
The First Line of feed-in line is parallel, and one end of these two metal tapes is connected to this substrate body, and by a via
Electrically connecting with the ground of the second surface of substrate body, the other end is unsettled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210317643.XA CN103682577B (en) | 2012-08-31 | 2012-08-31 | Multifrequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210317643.XA CN103682577B (en) | 2012-08-31 | 2012-08-31 | Multifrequency antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103682577A CN103682577A (en) | 2014-03-26 |
| CN103682577B true CN103682577B (en) | 2016-09-07 |
Family
ID=50319351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210317643.XA Expired - Fee Related CN103682577B (en) | 2012-08-31 | 2012-08-31 | Multifrequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103682577B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101005291A (en) * | 2007-01-19 | 2007-07-25 | 清华大学 | Double frequency plane two antenna system for mobile terminal |
| EP2416444A2 (en) * | 2010-07-15 | 2012-02-08 | Sony Ericsson Mobile Communications AB | Multiple-input multiple-output (MIMO) multi-band antennas with a conductive neutralization line for signal decoupling |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4831440B2 (en) * | 2007-03-12 | 2011-12-07 | 日本電気株式会社 | Planar antenna, communication device using the same, and card-type terminal |
| KR101166089B1 (en) * | 2010-10-05 | 2012-07-23 | 주식회사 이엠따블유 | Multi band mimo antenna |
| CN102623793A (en) * | 2011-02-01 | 2012-08-01 | 华硕电脑股份有限公司 | Multi-input multi-output antenna system |
-
2012
- 2012-08-31 CN CN201210317643.XA patent/CN103682577B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101005291A (en) * | 2007-01-19 | 2007-07-25 | 清华大学 | Double frequency plane two antenna system for mobile terminal |
| EP2416444A2 (en) * | 2010-07-15 | 2012-02-08 | Sony Ericsson Mobile Communications AB | Multiple-input multiple-output (MIMO) multi-band antennas with a conductive neutralization line for signal decoupling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103682577A (en) | 2014-03-26 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180301 Address after: The Guangxi Zhuang Autonomous Region Nanning hi tech Zone headquarters Road No. 18, China ASEAN enterprise headquarters base three 5# workshop Patentee after: NANNING FUGUI PRECISION INDUSTRIAL CO., LTD. Address before: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two Co-patentee before: Hon Hai Precision Industry Co., Ltd. Patentee before: Hongfujin Precise Industry (Shenzhen) Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20200831 |