CN205104609U - Antenna device and electron device who uses this antenna device - Google Patents
Antenna device and electron device who uses this antenna device Download PDFInfo
- Publication number
- CN205104609U CN205104609U CN201520819643.9U CN201520819643U CN205104609U CN 205104609 U CN205104609 U CN 205104609U CN 201520819643 U CN201520819643 U CN 201520819643U CN 205104609 U CN205104609 U CN 205104609U
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- antenna
- antenna element
- slit
- ground plane
- antenna assembly
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Abstract
The utility model provides an antenna device and an electron device who uses it. This antenna device includes base plate, ground plane, an antenna element, the 2nd antenna element and open circuited transmission line. The ground plane sets up in the first surface of base plate, has an at least slit, and the slit has the opening. An antenna element sets up in the first side of first surface. The 2nd antenna element is ground connection formula antenna element, sets up in the second side of first surface, and wherein first side is inclined for the second, and an antenna element and the 2nd antenna element lie in one side of ground plane. Open circuited transmission line sets up in the second surface of base plate, has link and open end, passes through slit or its some and centers on in slit, wherein link electric connection ground plane. The utility model discloses a surface current that antenna device can offset the ground plane through the slit and the ground plane open circuited transmission line behind one's back of ground plane to make an antenna element and the 2nd antenna element among the antenna device can not influence each other each other.
Description
Technical field
The utility model relates to a kind of antenna assembly, and has the antenna assembly of high-isolation and the electronic installation using this antenna assembly in particular to a kind of.
Background technology
Antenna assembly generally as the interface of wireless signal transmitting-receiving, and is arranged at and has in the electronic installation of wireless communication capability, and wherein electronic installation be such as that panel computer, smart mobile phone or intelligent television are excellent etc.Current electronic installation all can be supported to multiple operation frequency range and multiple wireless communication standard, and therefore, antenna assembly generally can have multiple antenna element, to achieve the above object.But, if mutual distance is too near between multiple antenna element, can interferes with each other and impact each other, cause the antenna performance of antenna element to change, thus the wireless signal that electronic installation internal wafer receives may be wrong.
In addition on the one hand, current trends wish that electronic installation is more and more compact, and therefore, the space being used for arranging antenna assembly in electronic installation is also more and more limited.There are other electronic components (such as, wafer or discrete circuit) in space around antenna assembly, and the electromagnetic wave of antenna assembly institute radiation, also may can affect other electronic components, therefore antenna assembly is under this trend, more needs higher isolation.
Current a kind of practice arranges at least one parasitic antenna between multiple antenna element, and absorb by least one parasitic antenna described the electromagnetic wave that one of them antenna element is coupled to another antenna element or other electronic components, thus make in antenna assembly between multiple antenna element can not be interfering with each other with impact, and reach the effect of high-isolation.Above-mentioned parasitic antenna is such as a parasitic sinuous conductor, and its length can be 1/4 of the wavelength that the first frequency in the operation frequency range of antenna assembly is corresponding, such as, and 1/4 of the wavelength that the low-limit frequency 2.4GHz of the operation frequency range of 802.11a/b/g/n is corresponding.But, when more and more stricter for the current requirement for communication quality, still need to promote further the isolation of said antenna device and antenna performance.
Utility model content
The utility model provides a kind of antenna assembly, and this antenna assembly comprises substrate, ground plane, the first antenna element, the second antenna element and open circuited transmission line.Ground plane is arranged at the first surface of substrate, and have at least one slit, slit has opening.First antenna element is arranged at the first side of first surface.Second antenna element is grounding type antenna element, and be arranged at the second side of first surface, wherein the first side is relative to the second side, and the first antenna element and the second antenna element are positioned at the same side of ground plane.Open circuited transmission line is arranged at the second surface of substrate, has link and open end, passes through slit or its some around slit, and wherein link is electrically connected ground plane.
In an embodiment of the present utility model, described substrate has hole, and described link is electrically connected described ground plane by this hole.
In an embodiment of the present utility model, described first antenna element is ungrounded formula antenna element.
In an embodiment of the present utility model, described open circuited transmission line is that straight line open circuit passes transmission line or the open circuit that wriggles passes transmission line.
In an embodiment of the present utility model, described slit is U-shaped slit or L-type slit.
In an embodiment of the present utility model, described first antenna element has signal feed-in point, and corresponding to this signal feed-in point, described ground plane has signal ground point.
In an embodiment of the present utility model, described second antenna element comprises the first radiant body and the second radiant body, and wherein this first radiant body has signal feed-in point, corresponding to this signal feed-in point, described ground plane has signal ground point, and this second radiant body is electrically connected this ground plane.
In an embodiment of the present utility model, described first antenna element is unipole antenna.
In an embodiment of the present utility model, described second antenna element is planar inverted F-shape antenna.
The utility model also provides a kind of electronic installation, and it is disposed therein that described electronic installation comprises said antenna device.
According to the structure of said antenna device, antenna assembly can offset the surface current of ground plane by the slit of ground plane and ground plane open circuited transmission line behind, thus the first antenna element in antenna assembly and the second antenna element can not be influenced each other each other.
Feature of the present utility model and technology contents is further understood for enable, refer to following about detailed description of the present utility model and accompanying drawing, but these illustrate and accompanying drawing is only used for the utility model is described, but not do any restriction to interest field of the present utility model.
Accompanying drawing explanation
Fig. 1 is the plane perspective schematic diagram of the antenna assembly that the utility model one embodiment provides.
Fig. 2 is the plane perspective schematic diagram of the antenna assembly that another embodiment of the utility model provides.
Fig. 3 is the plane perspective schematic diagram of the antenna assembly that another embodiment of the utility model provides.
Fig. 4 is the plane perspective schematic diagram of the antenna assembly that another embodiment of the utility model provides.
Wherein, description of reference numerals is as follows:
1 ~ 4: antenna assembly
10: substrate
11: the first antenna elements
12: the second antenna elements
121: the first radiant bodies
122: the second radiant bodies
13: ground plane
14,24,34: open circuited transmission line
F: signal feed-in point
G: signal ground point
MKR: tab area
SL, SL ': slit
V: hole
Embodiment
The utility model embodiment provides a kind of antenna assembly, described antenna assembly is a kind of slit antenna assembly, it utilizes the open circuited transmission line with open slots and ground plane behind of ground plane to overcome the impact of surrounding environment on this antenna assembly further, and maintains good antenna performance and higher isolation.The volume of described antenna assembly is little, therefore can be placed in compact electronic installation, and because have higher isolation, therefore its other elements with electronic installation are compared with influencing each other.In addition, antenna assembly of the present utility model can also have wideband operation frequency range.
First, please refer to Fig. 1, Fig. 1 is the plane perspective schematic diagram of the antenna assembly that the utility model embodiment provides.In this embodiment, antenna assembly 1 can be arranged in electronic installation, and antenna assembly 1 comprises substrate 10, first antenna element 11, second antenna element 12, ground plane 13 and open circuited transmission line 14.Above-mentioned electronic installation can be such as panel computer, smart mobile phone or intelligent television rod etc., and the type of the utility model not limiting electronic device.
First antenna element 11 is arranged at substrate 10 (such as, FR4 substrate) first surface (such as, front) the first side (such as, right side), second antenna element 12 is arranged at the second side of the first surface of substrate 10 (such as, left side), wherein the second side is relative to the first side.Ground plane 13 is arranged at the first surface of substrate, and the first antenna 11 and the second antenna 12 are positioned at the same side (such as, upside) of ground plane 13.
First antenna element 11 can be non-grounding type antenna element (such as, unipole antenna), and its other end can not be electrically connected with ground plane 13, but the utility model does not limit the kind of the first antenna element 11.Second antenna element 12 is grounding type antenna element, and its one end and ground plane 13 are electrically connected.Such as, the first antenna element 11 is unipole antenna, and the second antenna element is planar inverted F-shape antenna, and it has the first radiant body 121 and the second radiant body 122, and wherein the second width beam 122 is electrically connected described ground plane 13.
First antenna element 11 has a signal feed-in point F, to be electrically connected the holding wire of the first coaxial cable, and corresponding to the signal feed-in point F of the first antenna element 11, ground plane 13 has a signal ground point G, to be electrically connected the earth connection of the first coaxial cable.First radiant body 121 of the second antenna element 12 has a signal feed-in point F, to be electrically connected the holding wire of the second coaxial cable, and correspond to the signal feed-in point F of the first radiant body 121 of the second antenna element 12, ground plane 13 has a signal ground point G, to be electrically connected the earth connection of the second coaxial cable.
Open circuited transmission line 14 is arranged at the second surface of substrate 10 (such as, the back side), it has link and open end, wherein link and open end lay respectively at the first side of the second surface of substrate 10 (such as, left side) and the second side is (such as, right side), and link is electrically connected ground plane 13 by the hole V of substrate 10.In this embodiment, open circuited transmission line 14 is linearly extended open circuited transmission line, but the utility model does not limit the shape of open circuited transmission line 14, and in other embodiments, open circuited transmission line 14 may also be sinuous open circuited transmission line.
Ground plane 13 has at least one slit SL (note: when ground plane 13 is enough large, can allow that there is multiple slit SL), described slit SL can be a U-shaped slit with opening, but the utility model does not limit the shape of slit SL, and slit SL can also be the L-type slit with opening.In this embodiment, open circuited transmission line 14 passes through described slit SL, but in other embodiments, open circuited transmission line 14 also can be do not pass through described slit SL, but its some is near slit SL, such as, and three sides of slit SL.
Please note at this, slit SL is used for affecting the Surface current distribution of ground plane 13, and pass through slit SL due to open circuited transmission line 14, therefore most electric current can be converged in around slit SL and (failed to be convened for lack of a quorum become minimum by the turn left surface electrical of effluent of right side, be almost 0 ampere), up cancel out each other with the surface current flowed to down to make the flow direction converged at around slit SL.
Furthermore, as shown in Figure 1, when signal is fed into the signal feed side F of the first antenna element 11, if without the setting of slit SL and open circuited transmission line 14, then ground plane 13 has surface current and directly to be turned right effluent by the left side of ground plane 13, and the magnetic field that surface current produces can be coupled to the second antenna element 12.But, due to the setting of slit SL and open circuited transmission line 14, therefore the flow direction of surface current on ground plane 13 as shown by arrows, in the tab area MKR of slit SL, converge at surface current on the right side of slit SL toward dirty, converge at surface current on the left of slit SL toward upper reaches, therefore (the note: upwards differ 180 degree haply with the phase place of downward surface current and differ very little of upwards can cancelling out each other with downward surface current of slit SL both sides is converged at, therefore can offset, and therefore the magnetic field that surface current produces also can be cancelled, and the second antenna element 12 can not be coupled to), thus the impact reduced between the first antenna element 11 and the second antenna element 12.
In addition on the one hand, the position of above-mentioned slit SL via suitable design, can reduce the semaphore that surface current is introduced into the signal feed side F of the second antenna element 12, thus effectively promotes the isolation of antenna assembly 1.In the embodiment of Fig. 1, the isolation of antenna assembly 1 can reach more than 18dB, meet the target of wideband isolation, and it have good antenna gain and radiation efficiency in (2.4GHz ~ 5.85GHz) in the operation frequency range of 802.11a/b/n.In addition, the length of above-mentioned open circuited transmission line 14 can be adjusted, to affect isolation further.
Please then with reference to Fig. 2-Fig. 4, Fig. 2-Fig. 4 is the plane perspective schematic diagram of the antenna assembly that other three embodiments of the utility model provide.Compared to the difference of the antenna assembly 1 of Fig. 1, the open circuited transmission line 24 of the antenna assembly 2 of Fig. 2 is the open circuited transmission line wriggled, and passes through slit SL.Compared to the difference of the antenna assembly 1 of Fig. 1, the open circuited transmission line 34 of the antenna assembly 3 of Fig. 3 is the open circuited transmission line wriggled, but does not pass through slit SL, but some ground is around slit SL near its circumference (three sides around slit SL).Compared to the difference of the antenna assembly 1 of Fig. 1, the slit SL ' of the antenna assembly 4 of Fig. 4 is for having the L-type slit of opening.
Generally speaking, the utility model embodiment provides a kind of antenna assembly and the electronic installation using this antenna assembly.Described antenna assembly offsets the surface current of ground plane by the slit of ground plane and the open circuited transmission line of ground plane behind, thus the first antenna element in antenna assembly and the second antenna element can not be influenced each other each other.In addition on the one hand, in the position by suitably designing slit, antenna assembly more can have higher isolation, and not easily influences each other with other elements in electronic installation.In addition, the size of described antenna assembly is little, is suitable for being placed in compact electronic installation.
The above; be only the utility model preferably specific embodiment, feature of the present utility model is not limited thereto, and any those skilled in the art are in this area; the apparent change implemented or modification, all can be encompassed in the claimed scope of claims of the application.
Claims (10)
1. an antenna assembly, is characterized in that, this antenna assembly comprises:
Substrate;
Ground plane, is arranged at the first surface of this substrate, has at least one slit, and this slit has opening;
First antenna element, is arranged at the first side of this first surface;
Second antenna element is grounding type antenna element, is arranged at the second side of this first surface, and wherein this first side is relative to this second side, and this first antenna element and this second antenna element are positioned at the same side of this ground plane; And
Open circuited transmission line, is arranged at the second surface of this substrate, has link and open end, and pass through this slit or its some around this slit, wherein this link is electrically connected this ground plane.
2. antenna assembly as claimed in claim 1, it is characterized in that, described substrate has hole, and described link is electrically connected described ground plane by this hole.
3. antenna assembly as claimed in claim 1, it is characterized in that, described first antenna element is ungrounded formula antenna element.
4. antenna assembly as claimed in claim 1, is characterized in that, described open circuited transmission line is that straight line open circuit passes transmission line or the open circuit that wriggles passes transmission line.
5. antenna assembly as claimed in claim 1, it is characterized in that, described slit is U-shaped slit or L-type slit.
6. antenna assembly as claimed in claim 1, it is characterized in that, described first antenna element has signal feed-in point, and corresponding to this signal feed-in point, described ground plane has signal ground point.
7. antenna assembly as claimed in claim 1, it is characterized in that, described second antenna element comprises the first radiant body and the second radiant body, wherein this first radiant body has signal feed-in point, corresponding to this signal feed-in point, described ground plane has signal ground point, and this second radiant body is electrically connected this ground plane.
8. antenna assembly as claimed in claim 1, it is characterized in that, described first antenna element is unipole antenna.
9. antenna assembly as claimed in claim 1, it is characterized in that, described second antenna element is planar inverted F-shape antenna.
10. an electronic installation, comprises antenna assembly as claimed in any one of claims 1-9 wherein disposed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520819643.9U CN205104609U (en) | 2015-10-21 | 2015-10-21 | Antenna device and electron device who uses this antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520819643.9U CN205104609U (en) | 2015-10-21 | 2015-10-21 | Antenna device and electron device who uses this antenna device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205104609U true CN205104609U (en) | 2016-03-23 |
Family
ID=55520367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520819643.9U Active CN205104609U (en) | 2015-10-21 | 2015-10-21 | Antenna device and electron device who uses this antenna device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205104609U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063310A (en) * | 2017-12-25 | 2018-05-22 | 常州柯特瓦电子有限公司 | A kind of 5G Mid Frequencies small size PCB antenna |
| CN111653873A (en) * | 2019-03-03 | 2020-09-11 | 仁宝电脑工业股份有限公司 | Antenna structure |
| TWI839723B (en) | 2022-03-16 | 2024-04-21 | 美商莫仕有限公司 | Antenna Device |
-
2015
- 2015-10-21 CN CN201520819643.9U patent/CN205104609U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063310A (en) * | 2017-12-25 | 2018-05-22 | 常州柯特瓦电子有限公司 | A kind of 5G Mid Frequencies small size PCB antenna |
| CN108063310B (en) * | 2017-12-25 | 2023-10-13 | 常州柯特瓦电子有限公司 | 5G medium-frequency small-size PCB antenna |
| CN111653873A (en) * | 2019-03-03 | 2020-09-11 | 仁宝电脑工业股份有限公司 | Antenna structure |
| CN111653873B (en) * | 2019-03-03 | 2021-11-16 | 仁宝电脑工业股份有限公司 | Antenna structure |
| TWI839723B (en) | 2022-03-16 | 2024-04-21 | 美商莫仕有限公司 | Antenna Device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |