CN209730158U - A kind of mobile terminal multi-antenna device - Google Patents
A kind of mobile terminal multi-antenna device Download PDFInfo
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- CN209730158U CN209730158U CN201920215149.XU CN201920215149U CN209730158U CN 209730158 U CN209730158 U CN 209730158U CN 201920215149 U CN201920215149 U CN 201920215149U CN 209730158 U CN209730158 U CN 209730158U
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Abstract
The utility model discloses a kind of mobile terminal multi-antenna devices, it is related to communication antenna technical field, including at least two primary radiators and at least one secondary radiation body, using coupled antenna form, primary radiator is fed by electromagnetic coupling mode to secondary radiation body, each secondary radiation body passes through gating switch respectively and switches earthing position, realize that different primary radiators selects the excitation of same secondary radiation body, and control the resonance frequency of the secondary radiation body, realize antenna miniaturization design, and realize the not crosstalk of different systems antenna and the high-isolation with mimo antenna under standard.
Description
Technical field
The utility model belongs to communication antenna technical field, more particularly to a kind of mobile terminal multi-antenna device.
Background technique
With the development of the 4G communication technology, the function that mobile communication terminal such as mobile phone, smartwatch etc. can carry is more next
It is more, it is increasingly becoming the indispensable communication of consumer, social terminal.Meanwhile as relevant design miniaturization is gradually disappeared
Expense person pursues, and has become Related product middle and high ends type design standard configuration.Converting apparatus of the antenna as electromagnetic signal, radiation
With unique physical characteristic: i.e. the high efficiency radiation of the antenna of terminal between the area, headroom environment, antenna of antenna away from
From and antenna evading with the relationship that mutually restricts to circumferential metal.
So conflicting with Antenna Design, it is aobvious to be cured utility model with the continuous renewal of the said goods.At the same time, next-generation
The wideband multiple antenna design of the 5G communication technology will become trend, and with being multiplied for antenna amount, the above problem is more highlighted.
Current wearable product, the design space of antenna is minimum, and Antenna Design space and antenna spacing wretched insufficiency are led
It causes its radiation efficiency and isolation all poor, realizes that difficulty is very big with frequency, efficient Antenna Design, the use of Related product signal
There are larger defects for family experience.Therefore, the wideband of antenna, high radiation efficiency, low correlation are designed to next generation communication skill
One of art design difficulty will also become the bottleneck of limitation product appearance or function.
Utility model content
In view of the above drawbacks of the prior art, the technical problem to be solved by the utility model is to provide a kind of small radiation
The mobile terminal multi-antenna device of high-isolation, high radiation efficiency under environment.
To achieve the above object, the utility model provides a kind of mobile terminal multi-antenna device, including primary radiator
With secondary radiation body, the primary radiator is fed by electromagnetic coupling mode to the secondary radiation body, and secondary radiation body is logical
Gating switch ground connection is crossed, earthing position is switched by the gating switch, realizes different primary radiators to same secondary spoke
The excitation of beam.
By adopting the above technical scheme, by coupled antenna form, and by switching secondary radiation body earthing position, make
Same secondary radiation physical efficiency switch operating realizes the not crosstalk and same standard of different systems antenna under different systems antenna mode
The high-isolation of lower multiple antennas.
Preferably, the secondary radiation body is the metal edge frame separated by breaking joint, to improve the radiation efficiency of antenna.
Preferably, the breaking joint quantity is identical as the metal edge frame quantity, and identical as each group antenna branch quantity.
Preferably, primary radiator is with frequency or to face frequency communication standard.
Preferably, further including matching device, the secondary radiation body is connected by the matching device and the gating switch
It connects.
Further, the matching device includes inductively or capacitively.
Preferably, the gating switch is single pole multiple throw.
By adopting the above technical scheme, it by adjusting the design of the earthing position of secondary radiation body and matching device, realizes
Different systems antenna therein one is merely able to form high efficiency resonance and does not form the default of resonance with another.
The beneficial effects of the utility model are: the utility model can be by being designed to coupled antenna form for antenna, it will
Metal edge frame improves the radiance of antenna as antenna radiator；Gating switch switches earthing position simultaneously, realizes different
Primary radiator selects the excitation of same secondary radiation body, makes same secondary radiation physical efficiency switch operating in the day of different systems
Under ray mode, antenna miniaturization design is realized, and realize the not crosstalk of the antenna of different systems and with mimo antenna under standard
High-isolation.
Detailed description of the invention
Fig. 1 is the appearance diagram of one specific embodiment of the utility model.
Fig. 2 is the structural schematic diagram of one specific embodiment of the utility model.
Fig. 3 is the structural schematic diagram under one specific embodiment wifi operative scenario of the utility model.
Fig. 4 is the structural schematic diagram under one specific embodiment LTE B41 operative scenario of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples:
A kind of mobile terminal multi-antenna device, including at least two primary radiators and at least one secondary radiation body, institute
It states primary radiator and is fed by electromagnetic coupling mode to the secondary radiation body, each secondary radiation body passes through gating switch respectively
Ground connection switches earthing position by the gating switch, realizes excitation of the different primary radiators to same secondary radiation body
Selection, and control the resonance frequency of the secondary radiation body.
The secondary radiation body is the metal edge frame separated by breaking joint, with reference has no and is directly electrically connected with primary radiator
It connects.
Breaking joint quantity is confirmed according to mimo antenna quantity, the breaking joint quantity is identical as the metal edge frame quantity, and with
Each group antenna branch quantity is identical, such as: wifi 2.4GHz double antenna part is cracked by two and is cut to two independences
Metal part；Four antenna part of data connection is cracked by four and is cut to four independent metal parts.
Primary radiator is with frequency or to face frequency communication standard.
It further include matching device, the secondary radiation body is connect by the matching device with the gating switch.
The matching device includes that inductively or capacitively, in the present embodiment, matching device is capacitor.
The gating switch is single pole multiple throw.
The utility model supports wifi, LTE B41；The equivalent frequency of GPS, LTE B3 faces the more mimo antenna schemes of frequency, and root
Mimo antenna scheme can voluntarily be switched according to its function usage scenario, there is high radiation efficiency and high-isolation.
Antenna system is divided into radio circuit part and antenna part, and radio circuit part has signal source, RF power amplification, filter
Wave, multiplexer etc. and the relevant switch of antenna, antenna impedance matching and antenna connector, are referred to as antenna feed source.
Wherein antenna part is in coupled antenna mode, is divided into primary radiator i.e. built-in antenna part and secondary radiation body i.e. metal edge frame
By the part after cutting of cracking, primary radiator has no with secondary radiation body and is directly electrically connected, and primary radiator passes through electromagnetism coupling
Conjunction mode is fed to secondary radiation body.
The every antenna feed source of MIMO signal connects an antenna primary radiator, as aerial signal primary radiation part,
Secondary radiation body portion is excited to collectively form the band antenna system by electromagnetic radiation form.Primary radiator and secondary radiation
Body distance is close to having the part being parallel to each other, to improve antenna electromagnetic signal transformation efficiency.
In the present embodiment, it is all dual-antenna system that wifi and LTE, which face frequency communication standard, therefore is double designs of cracking, every time
Grade radiator is corresponding to have two primary radiators for facing frequency communication standard, and the secondary radiation body between two primary radiators
The contact point connecting is selected with reference by matching device and gating switch there are two partially setting.
As shown in Figure 1, being smartwatch appearance, front has metal edge frame shape, which has the bis- days wifi
Line and the design of LTE double antenna, and its frequency range is close, therefore the metal edge frame of smartwatch is double designs of cracking, round gold
Category frame, which is cracked, is cut to two independent metal parts, respectively as first grade radiator 21 and second subprime radiator
22。
As shown in Fig. 2, being antenna assembly design principle structure, two metal edge frames are respectively first 21 He of grade radiator
Second subprime radiator 22 is set inside complete machine there are four primary radiator.The first primary radiator of wifi 23 and wifi second
Two primary radiators of the primary radiator 24 as MIMO wifi, are connected, the first primary radiator of LTE with wifi signal source
Two primary radiators of the second primary radiator of 25 and LTE 26 as LTE B41, are connected with LTE signal source；First grade spoke
Beam 21 is located at the approximated position of the first primary radiator of wifi 23 and the first primary radiator of LTE 25, forms coupled antenna shape
Formula, and electromagnetic coupling can only be constituted with the first primary radiator of wifi 23 and the first primary radiator of LTE 25；Second subprime radiation
Body 22 is located at the approximated position of the second primary radiator of wifi 24 and the second primary radiator of LTE 26, forms coupled antenna form,
And electromagnetic coupling can only be constituted with the second primary radiator of wifi 24 and the second primary radiator of LTE 26；It is primary in wifi first
It is equipped between radiator 23 and the corresponding first grade radiator 21 of the second primary radiator of wifi 24 and is contacted with the first of plate circuit
Point 341 and the second contact point 342, in the first primary radiator of LTE 25 and the corresponding second subprime of the second primary radiator of LTE 26
The third contact point 343 and the 4th contact point 344 with plate circuit are equipped between radiator 22；The first of first grade radiator 21 connects
Contact 341 connects the first single-pole double-throw switch (SPDT) 331, second subprime spoke by series connection matching device respectively with the second contact point 342
The third contact point 343 of beam 22 connects the second single-pole double-throw switch (SPDT) by series connection matching device respectively with the 4th contact point 344
332, by the first single-pole double-throw switch (SPDT) 331 and the second single-pole double-throw switch (SPDT) 332 selection conducting ground connection, to control first grade
The resonance frequency of radiator 21 and second subprime radiator 22 determines that it carries out electromagnetism as the secondary radiation body of wifi or LTE
Resoance radiation.Each primary radiator can only excite its corresponding secondary radiation body from conducting grounding point to the part cracked, other
Part is grounded an isolation.And it corresponds to grounding point to the length cracked and determines its stimulating frequency, so only it is specific
The coupled antenna system that specific frequency could be constituted under length, here it is with switching the reason of being grounded at two.
As shown in figure 3, under wifi operative scenario, the first primary radiator of wifi 23 and the second primary radiator of wifi 24
As the primary conductor of aerial signal, the first single-pole double-throw switch (SPDT) 331 and the second single-pole double-throw switch (SPDT) 332 are respectively turned on first
Second contact point 342 of secondary radiation body 21 and the third contact point 343 of second subprime radiator 22, are grounded.At this time
Grade radiator 21 and 22 top shadow partial-length of second subprime radiator are in the first primary radiator of wifi 23 and wifi
The Net long wave radiation region of two primary radiators 24 and the coupled antenna resonance system that wifi 2.4GHz can be constituted, at this time
Two antenna branch of MIMO wifi are in running order.Signal is by first grade radiator 21 of appearance metal and second subprime
Radiator 22 radiates, and has good antenna height and headroom, can form higher radiation efficiency；Antenna radiator is located remotely from each other
With preferable isolation.The first primary radiator of LTE 25, the second primary radiator of LTE 26 and excitation can be coupled at this time
The non-hatched area of a grade radiator 21 and second subprime radiator 22 does not constitute 2.4GHz and faces radio-frequency radiation resonance condition, because
This wifi and LTE isolation with higher.
As shown in figure 4, under LTE B41 operative scenario, the second primary radiator of the first primary radiator of LTE 25 and LTE
The 26 primary conductor as aerial signal, the first single-pole double-throw switch (SPDT) 331 and the second single-pole double-throw switch (SPDT) 332 are respectively turned on
The first contact point 341 of grade radiator 21 and second subprime radiator 22 and the 4th contact point 344, are grounded.At this time
First grade radiator 21 and 22 top shadow partial-length top shadow partial-length of second subprime radiator are in the primary spoke of LTE first
The Net long wave radiation region of beam 25 and the second primary radiator of the LTE 26 and coupled antenna that can constitute LTE B41 frequency range is total
Vibrating system, the main diversity antenna branch of LTE is in running order at this time.Signal is by first grade radiator 21 of appearance metal and
Secondary stage radiator 22 radiates, and has good antenna height and headroom, can form higher radiation efficiency；Antenna radiator phase
Mutually far from preferable isolation.The first primary radiator of wifi 23 and the second primary radiator of wifi 24 and being capable of coupling at this time
The non-hatched area for closing first grade radiator 21 and second subprime radiator 22 of excitation does not constitute 2.4GHz radiation resonant bars
Part, therefore wifi and LTE isolation with higher.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality according to the design of the utility model on the basis of existing technology in domain
Available technical solution is tested, it all should be within the scope of protection determined by the claims.
Claims (6)
1. a kind of mobile terminal multi-antenna device, which is characterized in that including primary radiator and secondary radiation body, the primary spoke
Beam is fed by electromagnetic coupling mode to the secondary radiation body, and secondary radiation body is grounded by gating switch, by described
Gating switch switches earthing position, realizes excitation of the different primary radiators to same secondary radiation body；It further include adaptation
Part, the secondary radiation body are connect by the matching device with the gating switch.
2. a kind of mobile terminal multi-antenna device as described in claim 1, it is characterized in that: the secondary radiation body is by breaking joint
The metal edge frame separated.
3. a kind of mobile terminal multi-antenna device as claimed in claim 2, it is characterized in that: the breaking joint quantity and the metal
Frame quantity is identical, and identical as each group antenna branch quantity.
4. a kind of mobile terminal multi-antenna device as described in claim 1, it is characterized in that: primary radiator is with frequency or to face frequency
Communication standard.
5. a kind of mobile terminal multi-antenna device as described in claim 1, it is characterized in that: the matching device include capacitor or
Inductance.
6. a kind of mobile terminal multi-antenna device as shown in claim 1, it is characterized in that: the gating switch is that hilted broadsword is thrown more
Switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920215149.XU CN209730158U (en) | 2019-02-19 | 2019-02-19 | A kind of mobile terminal multi-antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920215149.XU CN209730158U (en) | 2019-02-19 | 2019-02-19 | A kind of mobile terminal multi-antenna device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209730158U true CN209730158U (en) | 2019-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920215149.XU Active CN209730158U (en) | 2019-02-19 | 2019-02-19 | A kind of mobile terminal multi-antenna device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109818137A (en) * | 2019-02-19 | 2019-05-28 | 深圳市和盈互联科技有限公司 | A kind of mobile terminal multi-antenna device |
| CN111463552A (en) * | 2020-04-10 | 2020-07-28 | 歌尔科技有限公司 | Watch with a memory |
-
2019
- 2019-02-19 CN CN201920215149.XU patent/CN209730158U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109818137A (en) * | 2019-02-19 | 2019-05-28 | 深圳市和盈互联科技有限公司 | A kind of mobile terminal multi-antenna device |
| CN109818137B (en) * | 2019-02-19 | 2024-02-09 | 深圳市飞亚达精密科技有限公司 | Multi-antenna device of mobile terminal |
| CN111463552A (en) * | 2020-04-10 | 2020-07-28 | 歌尔科技有限公司 | Watch with a memory |
| CN111463552B (en) * | 2020-04-10 | 2022-01-07 | 歌尔科技有限公司 | Watch with a memory |
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Effective date of registration: 20210826 Address after: 518000 block B, building 1, feiyada clock building, hecang Road, Matian street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Shenzhen feiyada Precision Technology Co.,Ltd. Patentee after: SHENZHEN HOIN INTERCONNECTION TECHNOLOGY Co.,Ltd. Address before: 518102 No. 14-16, 16th floor, Xusheng R & D building, Xifa B, Gonghe Industrial Road, Xixiang street, Bao'an District, Shenzhen, Guangdong Patentee before: SHENZHEN HOIN INTERCONNECTION TECHNOLOGY Co.,Ltd. |