CN207637999U - Micro metal antenna and electronic device - Google Patents
Micro metal antenna and electronic device Download PDFInfo
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- CN207637999U CN207637999U CN201721753538.5U CN201721753538U CN207637999U CN 207637999 U CN207637999 U CN 207637999U CN 201721753538 U CN201721753538 U CN 201721753538U CN 207637999 U CN207637999 U CN 207637999U
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Abstract
The utility model is suitable for field of communication technology, provide a kind of micro metal antenna, include bending radiation arm connection and conformal with metalwork for the ground connection minor matters of pedestal and pedestal bending connection with the conformal connection of metalwork in electronic device, with ground connection minor matters, and the first feed point and the second feed point being connect respectively with radiation arm and pedestal, pedestal, ground connection minor matters, radiation arm, the first feed point and the second feed point are integrally formed.The micro metal antenna parasitizes metalwork, and metalwork becomes the ground of antenna, so that it is transformed to from the barrier for being an impediment to antenna performance on ground of the antenna performance without influence, antenna efficiency is made to be greatly improved；Radiation arm is conformal with metalwork, makes antenna that can be used on the basis of guaranteed efficiency compact-sized, and in the device containing a large amount of metalworks and has excellent performance；The structure of different product and required working frequency are may also adapt to by adjusting the size and shape of metal antenna.In addition, the utility model also provides a kind of electronic device, including above-mentioned micro metal antenna and metal shell or metal heat sink, the micro metal antenna is connect with the metal shell or metal heat sink.
Description
Technical field
The utility model belongs to field of communication technology, more particularly to a kind of micro metal antenna and electronic device.
Background technology
The rapid development of wireless communication technique and web camera in recent years so that the Related product of web camera to
The better trend development of volume smaller, performance, and the diminution of small product size, the difficulty for directly resulting in heat dissipation improve, to need
Larger cooling fin or even cooling fin is applied to substantially cover entire product in the product.In the case, common traditional day
Line can be by cooling fin and relatively tall and big component influences cause antenna efficiency relatively low, and then reduces the wireless communication distance of product
And quality.
A kind of existing web camera, using hemispheric shell as radiating element, it is difficult including doing to lead to antenna
Portion space, then its dual-band antenna of a FR-4 base material is secured in front housing section outermost, the base material of the dual-band antenna is
FR-4, it is generally circular, it is fed in such a way that coaxial cable is transferred with connector, can accomplish the directional diagram of lens direction
Covering.This dipole using traditional FR-4 base materials pastes shell antenna, and there are certain defects：
1. antenna efficiency is low, the conventional value of antenna efficiency is 70%, and above-mentioned this antenna only has the spoke that 30-40% is not waited
Penetrate efficiency.
2. when enclosure interior insufficient space, the antenna of printing plate class can only utilize plane space, can not efficiently use sky
Between be designed, and then Antenna Construction Design is limited, and antenna efficiency is difficult to be promoted.
Utility model content
The purpose of this utility model is to provide a kind of micro metal antennas, it is intended to which solution is traditionally used for small size device
In the low technical problem of antenna efficiency.
The utility model is realized in this way micro metal antenna, includes for conformal with the metalwork in electronic device
The pedestal of connection, with the pedestal bending connection ground connection minor matters, with it is described ground connection minor matters bending connect and with the metal
The conformal radiation arm of part, and the first feed point and the second feed point that are connect respectively with the radiation arm and pedestal, the pedestal connect
Ground minor matters, radiation arm, the first feed point and the second feed point are integrally formed.
Further, the metalwork is metal shell or metal heat sink.
Further, the pedestal is sheet metal, and the pedestal is bonded face-to-face with the metalwork, and passes through locking
Part is fixedly connected.
Further, the ground connection minor matters and the radiation arm are the band-like sheet metal of bending, and the ground connection minor matters
Surface it is vertical with the surface of the radiation arm；One end of the ground connection minor matters is connect with the pedestal, the ground connection minor matters
The other end is connect with the radiation arm, and the ground connection minor matters form snakelike bending structure with the radiation arm.
Further, the ground connection minor matters include parallel, coplanar and the first ground section and the second ground section of bending connection,
The radiation arm includes coplanar and the first radiant section, the second radiant section and the third radiant section of bending connection；
First ground section is connect with the pedestal, first ground section, second ground section and described first
Double flat revolution connection, first radiant section are connect radiant section in obtuse angle with second radiant section successively, and described second
Radiant section is connect in obtuse angle with the third radiant section, and the end of the third radiant section is hanging.
Further, first feed point is triangle, and longer sides are connect with the pedestal, and second feed point is item
Shape, shorter edge are connect with first radiation arm；First feed point and the second feed point are perpendicular to the direction of the pedestal
On be oppositely arranged, a shorter edge of first feed point is parallel with a longer sides of the second feed point；First feed point and
Second feed point and the ground connection minor matters are coplanar.
Further, first feed point and first ground section are connected to same one side of the pedestal；Described second
Feed point is connected to one end that first radiant section is connect with second ground section.
Further, the position of first ground section and the connection of the second ground section forms the first angle of chamfer；Described second
The position that ground section is connect with first radiation arm forms the second angle of chamfer for avoiding first feed point.
Further, the height between the lower surface of the pedestal and the upper surface of the radiation arm is less than 5mm.
The another object of the utility model be to provide a kind of electronic device, including any of the above-described kind of micro metal antenna with
And metal shell or metal heat sink, the micro metal antenna are connect with the metal shell or metal heat sink.
Micro metal antenna provided by the utility model has the advantages that：
First, which parasitizes metalwork, by the metalwork of its pedestal and electronic device (shell or
Metal heat sink) it is directly connected to, metalwork becomes the ground of the metal antenna, participates in the radiation of antenna, makes it from being an impediment to day
Linearly the barrier metallization of energy is transformed on ground of the antenna performance without influence, and antenna efficiency is made to be greatly improved, and solves small electrical
Sub- device installation space small the problem of causing antenna efficiency to be difficult to improve；
Second, radiation arm and the conformal setting of metalwork, making antenna that can be placed in height on the basis of guaranteed efficiency has
Limit, environment complexity product in, may be used at it is compact-sized, and in the device containing a large amount of metalworks and with excellent property
Energy；
Third, can be by adjusting the size and shape of metal antenna with the structure for adapting to different product and required work
Frequency；
4th, when in applied to electronic device, radiation arm can be carried out to prohibit at paving at the orthographic projection on metalwork
Reason, to further increase the bandwidth of antenna.
Description of the drawings
Fig. 1 is the dimensional structure diagram for the micro metal antenna that the utility model embodiment provides；
Fig. 2 is the front view for the micro metal antenna that the utility model embodiment provides；
Fig. 3 is the side view for the micro metal antenna that the utility model embodiment provides；
Fig. 4 is the vertical view for the micro metal antenna that the utility model embodiment provides；
Fig. 5 is the S parameter curve graph for the micro metal antenna that the utility model embodiment provides；
Fig. 6 is the efficiency curve diagram for the micro metal antenna that the utility model embodiment provides；
Fig. 7 is the coordinate system schematic diagram for the micro metal antenna that the utility model embodiment provides；
Fig. 8 is theta=60 ° of 2D directional diagrams of the micro metal antenna that the utility model embodiment provides；
Fig. 9 is theta=70 ° of 2D directional diagrams of the micro metal antenna that the utility model embodiment provides；
Figure 10 is theta=80 ° of 2D directional diagrams of the micro metal antenna that the utility model embodiment provides；
Figure 11 is theta=90 ° of 2D directional diagrams of the micro metal antenna that the utility model embodiment provides.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only explaining this
Utility model is not used to limit the utility model.
It should be noted that when component is referred to as " being fixed on " or " being set to " another component, it can directly or
It connects on another component.When a component is referred to as " being connected to " another component, it can be directly or indirectly
It is connected on another component.The orientation or positional relationship of the instructions such as term "upper", "lower", "left", "right" is based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of describing, not indicating or implying the indicated device or element must have
There is specific orientation, with specific azimuth configuration and operation, therefore should not be understood as the limitation to this patent.Term " first ",
" second " is used merely to facilitate description purpose, is not understood to indicate or imply relative importance or implicitly indicates technical characteristic
Quantity.The meaning of " plurality " is two or more, unless otherwise specifically defined.
In order to illustrate technical solution described in the utility model, carried out specifically below in conjunction with specific accompanying drawings and embodiments
It is bright.
It please refers to Fig.1 to Fig.4, the utility model embodiment provides a kind of micro metal antenna, is used for miniaturized electronic devices
In, include for metalwork (metal shell or metal heat sink) conformal connection in miniaturized electronic devices pedestal 10, with
The ground connection minor matters 20 of the bending connection of pedestal 10 bend radiation arm 30 connection and conformal with metalwork with ground connection minor matters 20, with
And the first feed point 40 and the second feed point 50 being connect respectively with radiation arm 30 and pedestal 10, pedestal 10, ground connection minor matters 20, radiation arm
30, the first feed point 40 and the second feed point 50 are integrally formed.Specifically, which is the integrally formed small ruler of all-metal
Very little antenna, pedestal 10 are bonded face-to-face with metalwork, and are fixedly connected or are welded or riveted by locking member, the shape of pedestal 10
Consistent with the installation position shape of metalwork, generally planar shape is easily installed and processes.Be grounded minor matters 20 and radiation arm 30 according to
It is secondary to connect and connect to form serpentine configuration by way of bending, make antenna size control in smaller range, radiation arm
30 end is hanging.The shape of radiation arm 30 and metalwork are conformal, it is therefore intended that the shape for adapting to metalwork enables the antenna to pacify
In product loaded on narrow space.Antenna provided in this embodiment parasitizes metalwork, and metalwork becomes the ground of the antenna, ginseng
With the radiation of antenna, make it from the barrier metallization for being an impediment to antenna performance, is transformed on ground of the antenna performance without influence, makes
Antenna efficiency is greatly improved, and in turn, makes the directional diagram of antenna expected from meeting, and ensures that the efficiency of antenna is in higher
Level, the antenna efficiency of the present embodiment is 70% or so, is not less than the efficiency of common metal plug-in unit antenna.Meanwhile the antenna
Efficiency is greatly higher than other efficiency for the small size antenna being closely sized under similar environments again, is traditionally used for small
And the small size antenna efficiency under the more environment of metal only has the radiation efficiencies of 30-40% not etc..
The operation principle of the antenna is：The first feed point 40 and the second feed point 50 are connected by coaxial cable, via coaxial electrical
Cable is fed, and electric current at the first feed point 40 and the second feed point 50 by being fed, by the 30 complete pairing energy of radiation arm of antenna
Electromagenetic wave radiation to free space equally, can also be received electromagnetic wave by radiation arm 30, complete electromagnetic wave by the conversion of amount
Conversion to electric energy exports electric energy by the first feed point 40 and the second feed point 50.Antenna size (the first feed point 40 in the present embodiment
Or second feed point 50 inner core to 30 distalmost end of radiation arm length) be 1/4 λ or so.
Based on above-mentioned antenna structure, which has the following technical effect that：
First, which parasitizes metalwork, is directly connected by the metalwork of its pedestal 10 and electronic device
It connects, so that metalwork is transformed to from the barrier metallization for being an impediment to antenna performance on ground of the antenna performance without influence, be used in small
The efficiency of antenna in type device significantly improves, and solves that miniaturized electronic devices installation space is small that antenna efficiency is caused to be difficult to improve
Problem, the antenna height can narrow down within 5mm；
Second, pedestal 10 and radiation arm 30 and the conformal setting of metalwork match with metalwork in structure, can effective profit
With installation space, make antenna can be placed on the basis of guaranteed efficiency limited height, environment complexity product in, can be used
Compact-sized, and in the device containing a large amount of metalworks, and there is excellent performance；
Third, can be by adjusting the size and shape of metal antenna with the structure for adapting to different product and required work
Frequency；
4th, when in applied to electronic device, taboo paving can be carried out at the orthographic projection on metalwork to radiation arm 30
Processing, to further increase the bandwidth of antenna.
In addition, metal antenna is connect with metalwork, antenna itself is made to participate in radiating, and then its performance is made further to be promoted.
In the present embodiment, pedestal 10 is sheet metal, and pedestal 10 is bonded face-to-face with metalwork, and passes through screw, weldering
It connects or the modes such as riveting is fixedly connected, while also generating electrical connection.Ground connection minor matters 20 and radiation arm 30 are that bending is band-like
Sheet metal, it will be understood that the length and width of sheet metal is far longer than thickness, and the meaning on surface refers to perpendicular to thickness direction
Face.In the present embodiment, be grounded minor matters 20 surface it is vertical with the surface of radiation arm 30, meanwhile, be grounded minor matters 20 surface and
The surface of pedestal 10 is vertical.One end of ground connection minor matters 20 is connect with pedestal 10, and the other end and radiation arm 30 for being grounded minor matters 20 connect
It connects, ground connection minor matters 20 form snakelike bending structure with radiation arm 30.It being connected by bending so that entire antenna size is smaller, and
It efficiently uses limited space and realizes better antenna performance.
Specifically, ground connection minor matters 20 include parallel, coplanar and the first ground section 21 and the second ground section 22 of bending connection,
Radiation arm 30 includes coplanar and the first radiant section 31, the second radiant section 32 and the third radiant section 33 of bending connection.First ground connection
Section 21 and 10 vertical connection of pedestal, specifically can bend connection vertically upward from one side of pedestal 10.First ground section 21, second
Ground section 22 and the double flat revolution connection successively of the first radiant section 31, the first radiant section 31 and the second radiant section 32 are in obtuse angle
Connection, the second radiant section 32 are connect in obtuse angle with third radiant section 33, and the end of third radiant section 33 is hanging.In this way, the first spoke
Penetrate section 31, the second radiant section 32 is bent to form similar arc structure successively with third radiant section 33, its object is to it is to be assembled
Shell matches, and interferes to avoid with shell, certainly, in the change in shape of metalwork, the length of each radiant section and bending
Angle adapts to variation, ensures conformal with metalwork.
Further, the first feed point 40 and the first ground section 21 are connected to same one side of pedestal 10, and the first feed point 40
Without departing from the length range of pedestal 10, to adapt to the miniature requirement of antenna.First feed point 40 is preferably triangle, compared with
Long side is connect with pedestal 10, and the second feed point 50 is bar shaped, from one end that the first radiant section 31 is connect with the second ground section 22 to the
One feed point, 40 direction extends, and shorter edge is connect with the first radiant section 31, and the first feed point 40 and the second feed point 50 are the bottom of perpendicular to
It is oppositely arranged on the direction of seat 10, and a shorter edge of the first feed point 40 is parallel with a longer sides of the second feed point 50, first
Feed point 40 and the second feed point 50 are coplanar with ground connection minor matters 20.Space can be efficiently used in this way, and convenient for the molding of antenna.
Further, the first angle of chamfer 23 is formed at the position that the first ground section 21 and the second ground section 22 connect, to keep away
Exempt from sharp position occur and scratch device, and installation space structure can be better adapted to.In the second ground section 22 and first
The position that radiation arm 30 connects forms the second angle of chamfer 24 of the first feed point 40 of evacuation, so that the second ground section 22 and the first feed point
40 spacing smaller, and then make the smaller of antenna.
Micro metal antenna with above structure, on the basis of meeting antenna efficiency, antenna size can be done more
Small, as one embodiment, antenna height 4.8mm, 10 length of pedestal is 10.99mm, and 10 width of pedestal is 5mm, radiation arm
30 width is 1.2mm, and the length of third radiant section 33 is 6.6mm, and the thickness of pedestal 10, ground connection minor matters 20 and radiation arm 30 is
0.3mm, overall antenna length degree are less than 20mm, and overall width is less than 15mm, and total height is less than 5mm.It is 6.8mm that existing plug-in unit antenna is most short
Left and right.Since the antenna height is smaller, metalwork can be carried out below the orthographic projection of radiation arm 30 prohibiting paving processing, with
Increase bandwidth, 150MHz or so can be reached, satisfied the use demand.It such as can't help paving and also can get preferable radiance, but day
The bandwidth of line can be relatively narrow.
The ground connection minor matters 20 of the antenna and the shape of radiation arm 30 do conformal processing according to the structure of its installation space, and day
30 length of radiation arm of line can significantly change resonant frequency, its 30 length of radiation arm is increased, and current path increases, then antenna
Resonant frequency can reduce.When adjusting radiation brachium is located at desired frequency point to resonant frequency, further regulated ground minor matters
20 length can obtain ideal notch depth (depth of S11 parameters).
Fig. 5 and Fig. 6 show the S11 parameter curves and antenna efficiency curve of the micro metal antenna of the present embodiment.According to
Shown in Fig. 5, the depth of the S11 parameters of the antenna meets conventional aerial S11 parameter depth and is wanted less than -10dB close to -30dB
It asks.Fig. 8 to Figure 11 show the side 2D in theta=60 °, 70 °, 80 °, 90 ° four face of the micro metal antenna of the present embodiment
Xiang Tu meets the expected requirements, and the definition of theta is as shown in Figure 7, wherein O points correspond to the starting that ground connection minor matters are connect with pedestal
End, X-axis are parallel to the length direction of pedestal, and Y-axis is parallel to the width direction of pedestal, and Z axis is perpendicular to susceptor surface.
Micro metal antenna provided by the utility model is suitable for small size electronic device, including the micro metal antenna
Miniaturized electronic devices are also within the protection scope of the present utility model comprising micro metal antenna and metal shell or metal dissipate
Warmware, the micro metal antenna are directly connect with metal shell or metal heat sink.Directly and metal shell due to metal antenna
Or radiating piece connection, make metal shell or radiating piece directly as the ground of antenna, and then solve metal shell or radiating piece etc.
Tall and big metalwork influences the problem of antenna performance, improves the efficiency of small size antenna；And due to the conformal design of radiation arm 30,
Enable the antenna in the case of guaranteed efficiency be suitable for space it is small, in complicated adverse circumstances；And antenna itself is joined
With heat dissipation, keep antenna performance more preferable.In addition, passing through the area to corresponding to 30 orthographic projection of radiation arm on metal shell or metal heat sink
Domain carries out taboo paving, can also increase bandwidth.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (10)
1. micro metal antenna, which is characterized in that include for the pedestal and institute with the conformal connection of metalwork in electronic device
It states the ground connection minor matters of pedestal bending connection, bend radiation arm connection and conformal with the metalwork with the ground connection minor matters,
And the first feed point and the second feed point being connect respectively with the radiation arm and pedestal, the pedestal, ground connection minor matters, radiation arm,
First feed point and the second feed point are integrally formed.
2. micro metal antenna as described in claim 1, which is characterized in that the metalwork is metal shell or heat dissipation metal
Part.
3. micro metal antenna as described in claim 1, which is characterized in that the pedestal be sheet metal, the pedestal with
The metalwork is bonded face-to-face, and is fixedly connected by locking member.
4. micro metal antenna as described in claim 1, which is characterized in that the ground connection minor matters and the radiation arm are curved
The sheet metal of fold belt shape, and the surface of the ground connection minor matters is vertical with the surface of the radiation arm；One end of the ground connection minor matters
It is connect with the pedestal, the other end of the ground connection minor matters is connect with the radiation arm, the ground connection minor matters and the radiation arm
Form snakelike bending structure.
5. micro metal antenna as described in claim 1, which is characterized in that the ground connection minor matters include parallel, coplanar and curved
The first ground section and the second ground section of connection are rolled over, the radiation arm includes coplanar and the first radiant section of bending connection, second
Radiant section and third radiant section；
First ground section is connect with the pedestal, first ground section, second ground section and first radiation
The revolution connection of Duan Yici double flats, first radiant section are connect in obtuse angle with second radiant section, second radiation
Section is connect in obtuse angle with the third radiant section, and the end of the third radiant section is hanging.
6. micro metal antenna as claimed in claim 5, which is characterized in that first feed point is triangle, longer sides
It is connect with the pedestal, second feed point is bar shaped, and shorter edge is connect with first radiant section；First feed point and
Second feed point is oppositely arranged on the direction of the pedestal, a shorter edge of first feed point and second feed point
A longer sides it is parallel；First feed point and the second feed point and the ground connection minor matters are coplanar.
7. micro metal antenna as claimed in claim 5, which is characterized in that first feed point and first ground section connect
It is connected to same one side of the pedestal；Second feed point is connected to one that first radiant section is connect with second ground section
End.
8. micro metal antenna as claimed in claim 7, which is characterized in that first ground section and the connection of the second ground section
Position formed the first angle of chamfer；The position that second ground section is connect with first radiant section forms evacuation described first
Second angle of chamfer of feed point.
9. such as claim 1~8 any one of them micro metal antenna, which is characterized in that the lower surface of the pedestal and institute
The height stated between the upper surface of radiation arm is less than 5mm.
10. electronic device, which is characterized in that including claim 1~9 any one of them micro metal antenna and metal-back
Body or metal heat sink, the micro metal antenna are connect with the metal shell or metal heat sink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721753538.5U CN207637999U (en) | 2017-12-14 | 2017-12-14 | Micro metal antenna and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721753538.5U CN207637999U (en) | 2017-12-14 | 2017-12-14 | Micro metal antenna and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207637999U true CN207637999U (en) | 2018-07-20 |
Family
ID=62863788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721753538.5U Active CN207637999U (en) | 2017-12-14 | 2017-12-14 | Micro metal antenna and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207637999U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860977A (en) * | 2018-12-03 | 2019-06-07 | 惠州Tcl移动通信有限公司 | A kind of communication terminal and its antenna structure |
| CN113054393A (en) * | 2021-04-25 | 2021-06-29 | 北京有竹居网络技术有限公司 | Antenna and terminal |
| CN114498005A (en) * | 2020-06-02 | 2022-05-13 | Oppo广东移动通信有限公司 | Customer premises equipment |
| CN117438782A (en) * | 2023-11-10 | 2024-01-23 | 西安交通大学 | Electromagnetic radiation and thermal radiation enhancement device for terminal equipment |
-
2017
- 2017-12-14 CN CN201721753538.5U patent/CN207637999U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860977A (en) * | 2018-12-03 | 2019-06-07 | 惠州Tcl移动通信有限公司 | A kind of communication terminal and its antenna structure |
| CN109860977B (en) * | 2018-12-03 | 2020-12-25 | 惠州Tcl移动通信有限公司 | Mobile communication terminal and antenna structure thereof |
| CN114498005A (en) * | 2020-06-02 | 2022-05-13 | Oppo广东移动通信有限公司 | Customer premises equipment |
| CN113054393A (en) * | 2021-04-25 | 2021-06-29 | 北京有竹居网络技术有限公司 | Antenna and terminal |
| CN117438782A (en) * | 2023-11-10 | 2024-01-23 | 西安交通大学 | Electromagnetic radiation and thermal radiation enhancement device for terminal equipment |
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