CN107645071A - A kind of antenna system and mobile terminal - Google Patents
A kind of antenna system and mobile terminal Download PDFInfo
- Publication number
- CN107645071A CN107645071A CN201710750667.7A CN201710750667A CN107645071A CN 107645071 A CN107645071 A CN 107645071A CN 201710750667 A CN201710750667 A CN 201710750667A CN 107645071 A CN107645071 A CN 107645071A
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- circuit
- antenna system
- resonance
- tuning circuit
- tuning
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Abstract
The present invention provides a kind of antenna system and mobile terminal, resonance arm is separated out on the metal shell of mobile terminal, antenna system includes resonance arm, and it is arranged at tuning circuit and feed circuit between resonance arm and earth terminal, by setting slit to be separated to form resonance arm on metal shell, feed circuit is set on resonance arm, and tuning circuit is set in the end of resonance arm, the switching of radiation mode is realized using the switch combination of tuning circuit at the feed end of resonance arm and resonance arm end, single antenna can be made to realize the covering of medium-high frequency section bandwidth under small headroom environment, meet the bandwidth demand of antenna efficiency and frequency range in mobile terminal.
Description
Technical field
The present invention relates to antenna technical field, more particularly to a kind of antenna system and mobile terminal.
Background technology
With the progress of science and technology, the communication technology is developed rapidly and significant progress, and with the communication technology
Raising, the popularization and improvement of smart electronicses product to a unprecedented height, increasing intelligent terminal or movement
Terminal turns into a part indispensable in people's life, such as smart mobile phone, intelligent television and computer.
While mobile terminal is popularized, user to mobile terminal possessed functional type and performance requirement increasingly
Height, as audio-frequency function, camera function, camera function and fast charge charge function etc. all have become intelligent terminal or mobile terminal
Necessary functions.
While increasingly being improved with the function of mobile terminal, the outward appearance and texture of mobile terminal are also into user's pursuit
Aspect, and the mobile terminal of metal shell, because outstanding metal-like has obtained the favor of more and more users.But
Under the enhancing of mobile terminal case metal-like demand, and the less and less requirement of empty regions of antenna resonance arm, antenna
The rise of Q values, and bandwidth narrows so that an antenna is difficult to the broadband frequency range covering of multiband, especially 1710M-
The broadband covering of 2690M intermediate frequency and high frequency, it is more difficult to meet the bandwidth demand of antenna efficiency and frequency range in mobile terminal.
The content of the invention
The embodiment of the present invention provides a kind of antenna system and mobile terminal, to solve in existing mobile terminal, is meeting
Under the requirement of the metal-like of shell and the small empty regions of antenna resonance arm, an antenna is difficult to the broadband frequency of multiband
Section covering, it is more difficult to the problem of meeting the bandwidth demand of antenna efficiency and frequency range in mobile terminal.
The embodiments of the invention provide a kind of antenna system, applied to the mobile terminal with metal shell, the metal
Housing is provided with gap, and resonance arm, the antenna system bag have been separated to form on the metal shell by the gap
The resonance arm, feed circuit and tuning circuit are included, the feed circuit is connected to the first tie point of the resonance arm with connecing
Between ground terminal, first tie point is located at the centre position of the resonance arm, and the tuning circuit is connected to the resonance arm
End and earth terminal between, when the antenna system is in mid frequency radiated pattern, the feed circuit turn-on, the tuning
Circuit is in the first conducting state, when the antenna system is under high frequency radiation pattern, the feed circuit turn-on, and the tune
Humorous circuit is in the second conducting state.
The embodiment of the present invention also provides a kind of mobile terminal, and the mobile terminal includes antenna system and metal shell, institute
State metal shell and be provided with gap, and resonance arm, the antenna have been separated to form on the metal shell by the gap
System includes the resonance arm, feed circuit and tuning circuit, and the feed circuit is connected to the first connection of the resonance arm
Between point and earth terminal, first tie point is located at the centre position of the resonance arm, and the tuning circuit is connected to described
Between the end of resonance arm and earth terminal, when the antenna system is in mid frequency radiated pattern, the feed circuit turn-on, institute
State tuning circuit and be in the first conducting state, when the antenna system is under high frequency radiation pattern, the feed circuit turn-on,
The tuning circuit is in the second conducting state.
Antenna system provided in an embodiment of the present invention and mobile terminal, be separated out on the metal shell of mobile terminal including
Resonance arm, antenna system include resonance arm, and the tuning circuit and feed circuit being arranged between resonance arm and earth terminal, work as institute
When stating antenna system and being in mid frequency radiated pattern, the feed circuit turn-on, the tuning circuit is in the first conducting state, when
The antenna system is under high frequency radiation pattern, the feed circuit turn-on, and the tuning circuit is in the second conducting state,
So, by setting slit to be separated to form resonance arm on metal shell, the setting feed circuit on resonance arm, and in resonance arm
End tuning circuit is set, utilize the switch of tuning circuit difference conducting state in the feed end of resonance arm and resonance arm end
The switching of radiation mode is realized in combination, and single antenna can be made to realize the covering of medium-high frequency section bandwidth under small headroom environment, full
The bandwidth demand of antenna efficiency and frequency range in sufficient mobile terminal.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, needed for being described below to the embodiment of the present invention
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention,
For those of ordinary skill in the art, without having to pay creative labor, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the stereogram of mobile terminal provided in an embodiment of the present invention；
Fig. 2 is the plan of the metal shell of the mobile terminal shown in Fig. 1；
Fig. 3 is the structural representation of the antenna system of mobile terminal shown in Fig. 1；
The structural representation of the antenna system of mobile terminal in another embodiment of Fig. 4 present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
The stereogram of Fig. 1, such as 2 and Fig. 3, Fig. 1 for mobile terminal provided in an embodiment of the present invention is referred to, Fig. 2 is in Fig. 1
The plan of the metal shell of shown mobile terminal, Fig. 3 are the structural representation of the antenna system of mobile terminal shown in Fig. 1
Figure.As shown in Figure 1 to Figure 3, the mobile terminal 100 of the embodiment of the present invention includes display screen 11, center 12 and metal shell 13, institute
The setting nested with the center 12 of display screen 11 and the metal shell 13 is stated, the center 12 carries the display screen 11 and institute
Metal shell 13 is stated, and a host cavity is surrounded jointly with the display screen 11 and the metal shell 13, the mobile terminal
Mainboard and other elements are contained in the host cavity.The mobile terminal 100 also includes a viewing area 101 and around viewing area
101 peripheral region 102, viewing area 101 are used to realize display function and touch controllable function of the mobile terminal 100 etc..
It is to be illustrated so that metal shell is the rear shell of mobile terminal as an example, but be not limited in present embodiment
This, in other embodiments, metal shell can also be mobile terminal center or other use metal structure part,
It is not limited thereto.
In present embodiment, it is by setting center and rear metal rear shell to be used as the shell of mobile terminal, but does not limit to
In this, in other embodiments or center is not provided with, only by setting the housing being made up of metal shell to be used as shifting
The shell of dynamic terminal.
As shown in Fig. 2 being provided with gap 131 on the metal shell 13, the gap 131 is located at the metal shell 13
One end, and close to the metal shell 13 right side edge position, the metal shell 13 is separated to form by the gap 131
There is the body 133 of resonance arm 132 and the metal shell 13, the resonance arm 132 is located at one end of the metal shell 13, and
Positioned at most of right side edge position of the metal shell 13, one end of the resonance arm 132 and the metal shell 13
Body 133 connects, and the other end is the end of the resonance arm 132, and the end of the resonance arm 132 is relative with the body 133
Set.
In present embodiment, the resonance arm 132 is in a l-shaped, but is not limited thereto, in other embodiment
In, the resonance arm 132 can also be linear or other shapes.
In present embodiment, the gap 131 and the resonance arm 132 are located at one end of the metal shell 13, and lean on
The right side edge position of the nearly metal shell 13, but be not limited thereto, in other embodiments, the gap 131 and
The resonance arm 132 can also be close to the left side edge position of the metal shell 13, or close to the metal shell
13 top or bottom margin position etc..
As shown in figure 3, the mobile terminal 100 also includes antenna system 14, the antenna system 14 includes the resonance
Arm 132, feed circuit 141 and tuning circuit 142.The feed circuit 141 is connected to the first tie point of the resonance arm 132
Between earth terminal, the tuning circuit 142 is connected between end and the earth terminal of the resonance arm 132.
Wherein, first tie point can be located at the centre position of the resonance arm 132, or be located substantially at described humorous
Raise one's arm 132 centre position.
When the antenna system 14 is in mid frequency radiated pattern, the feed circuit 141 turns on, the tuning circuit
142 are in the first conducting state, and when the antenna system 14 is under high frequency radiation pattern, the feed circuit 141 turns on, institute
State tuning circuit 142 and be in the second conducting state.
Specifically, the feed circuit 141 includes feed 1411 and the feed match circuit being connected with the feed 1411
1412, the both ends of the feed match circuit 1412 are connected between the feed 1411 and first tie point.
The tuning circuit 142 includes the first resonance matching circuit 1421 and second tune match circuit 1422, and described
One resonance matching circuit 1421 is arranged in parallel with the second tune match circuit 1422, the first resonance matching circuit 1421
One end and one end of the second tune match circuit 1422 connect respectively with the second tie point of the end of resonance arm 132
Connect, the other end of the first resonance matching circuit 1421 and the other end of the second tune match circuit 1422 are respectively with connecing
Ground terminal connects.
When the tuning circuit 142 is in the first conducting state, the open circuit of the first resonance matching circuit 1421 is described
Second tune match circuit 1422 turns on, when the tuning circuit 142 is in the second conducting state, first resonance matching
Circuit 1421 turns on, the open circuit of second tune match circuit 1422.
Wherein, the feed match circuit 1412, the first resonance matching circuit 1421 and second tune matching
Circuit 1422, can be the complex match of inductance, electric capacity or inductance and electric capacity composition.
In present embodiment, earth terminal can be disposed on the earth terminal on the mainboard of mobile terminal, and each tuning
Switch and each radio circuit are also to be arranged on the mainboard of mobile terminal.
Further, the tuning circuit 142 includes first switch 1423, and the first switch 1423 is connected to described
Between one resonance matching circuit 1421 and second tie point, and the first switch 1423 is also attached to described second and adjusted
Between humorous match circuit 1422 and second tie point.The first switch 1423 includes first end, the second end and control terminal,
The first end is connected with the first resonance matching circuit 1421, and second end connects with the second tune match circuit 1422
Connect, the control terminal is connected with second tie point.
In present embodiment, the first switch 1423 is single-pole double-throw switch (SPDT).
When the tuning circuit is in the first conducting state, the first end is separated with the control terminal, described
First resonance matching circuit breaker, turned between second end and the control terminal, the second tune match circuit conducting.
When the antenna system 14 is in mid frequency radiated pattern, i.e., described tuning circuit 142 is in the first conducting state,
The first end is separated with the control terminal so that the first resonance matching circuit 1421 is in off state, described
Turned between second end and the control terminal so that the second tune match circuit 1422 is in the conduction state.Now, it is described
Antenna system 14 can pass through each inductance, electricity in the feed match circuit 1412 and the second tune match circuit 1422
Hold or inductance is arranged in pairs or groups with electric capacity difference numerical value to realize the mid frequency radiated function of the antenna system 14.
When the antenna system 14 is under high frequency radiation pattern, i.e., described tuning circuit 142 is in the second conducting state
When, turned between the first end and the control terminal so that the first resonance matching circuit 1421 is in the conduction state, institute
State the separated of the second end and the control terminal so that the second tune match circuit 1422 is in off state.Now, institute
State antenna system 14 can by each inductance in the feed match circuit 1412 and the first resonance matching circuit 1421,
Electric capacity or inductance are arranged in pairs or groups with electric capacity difference numerical value to realize the high frequency radiation function of the antenna system 14.
In present embodiment, in the match circuit of any one branch road, switch and its attached match circuit can mutually replace
Put and produce same function, in the tuning circuit 142, can also be that the first resonance matching circuit 1421 is located at institute
State between the first end of the first tuning switch 1432 and first tie point etc..
In present embodiment, the mobile terminal 100 can pass through the feed match circuit 1412, described first of arranging in pairs or groups
Resonance matching circuit 1421 and each inductance in the second tune match circuit 1422, electric capacity or inductance are different from electric capacity
Numerical value is arranged in pairs or groups, and the conducting state in the regulation first switch 1423 between different firing points, described mobile whole to adjust
The frequency range of antenna system 14 and the width of band bandwidth at end 100, so as to realize that the antenna of mobile terminal 100 is meeting housing
Medium-high frequency section bandwidth can be achieved by single antenna under the requirement of small headroom environment in the demand of metal-like, and antenna
Covering.
In present embodiment, although being connected to first tuning using the first switch 1423 of a single-pole double throw
With between circuit 1421 and the second tune match circuit 1422 and the resonance arm 123, but it is not limited thereto, can be with
Between the first resonance matching circuit 1421 and the resonance arm 123, and the second tune match circuit 1422 with
It is described to control respectively respectively using conventional single-pole single-throw switch (SPST) or unidirectionally controlled switch etc. between the resonance arm 123
First resonance matching circuit 1421 and the second tune match circuit 1422 are switched on or off.And single-pole single-throw switch (SPST)
Either unidirectionally controlled switch etc. and the first resonance matching circuit 1421 or the second tune match circuit 1422 can be with
Transposition and produce same function.
In the embodiment of the present invention, above-mentioned mobile terminal can with it is any for example：Mobile phone, tablet personal computer (Tablet Personal
Computer), laptop computer (Laptop Computer), personal digital assistant (personal digital
Assistant, abbreviation PDA), mobile Internet access device (Mobile Internet Device, MID) or wearable device
Tools such as (Wearable Device) at least communicates, the mobile terminal of GPS and wireless connecting function.
Referring to Fig. 4, in another embodiment of Fig. 4 present invention the antenna system of mobile terminal structural representation.Such as Fig. 4
Shown in, the difference of embodiment illustrated in fig. 4 and embodiment illustrated in fig. 3 is：The tuning circuit 242 includes second switch
2424, the second switch 2424 is connected between the first resonance matching circuit 2421 and second tie point, described
Second tune match circuit 2422 is the capacity cell and/or inductance element that are separately provided, and the second tune match circuit
2422 one end can be connected between the second switch 2424 and second tie point.
When the tuning circuit 242 is in the first conducting state, the second switch 2424 disconnects so that described first
Resonance matching circuit 2421 is in off state, and the second tune match circuit 2422 turns on, at the tuning circuit 242
When the second conducting state, the second switch 2424 closes so that the first resonance matching circuit 2421 is on shape
State, the second tune match circuit 2422 are in the conduction state.
Wherein it is possible to by arrange in pairs or groups the first resonance matching circuit 2421 and the second tune match circuit 2422
Each inductance, electric capacity or inductance and electric capacity numerical value, and the conducting and disconnection of the regulation second switch 2424, to adjust
The frequency range of the antenna system 24 and the width of band bandwidth are saved, so as to realize that the antenna of mobile terminal is meeting casing metal
The demand of texture, and antenna is under the requirement of small headroom environment, is that covering for medium-high frequency section bandwidth can be achieved by single antenna
Lid.
Antenna system provided in an embodiment of the present invention and mobile terminal, be separated out on the metal shell of mobile terminal including
Resonance arm, antenna system include resonance arm, and the tuning circuit and feed circuit being arranged between resonance arm and earth terminal, work as institute
When stating antenna system and being in mid frequency radiated pattern, the feed circuit turn-on, the tuning circuit is in the first conducting state, when
The antenna system is under high frequency radiation pattern, the feed circuit turn-on, and the tuning circuit is in the second conducting state,
So, by setting slit to be separated to form resonance arm on metal shell, the setting feed circuit on resonance arm, and in resonance arm
End tuning circuit is set, utilize the switch of tuning circuit difference conducting state in the feed end of resonance arm and resonance arm end
The switching of radiation mode is realized in combination, and single antenna can be made to realize the covering of medium-high frequency section bandwidth under small headroom environment, full
The bandwidth demand of antenna efficiency and frequency range in sufficient mobile terminal.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (10)
1. a kind of antenna system, applied to the mobile terminal with metal shell, it is characterised in that the metal shell is provided with
Gap, and resonance arm has been separated to form on the metal shell by the gap, the antenna system includes the resonance
Arm, feed circuit and tuning circuit, the feed circuit are connected between the first tie point of the resonance arm and earth terminal, institute
The centre position that the first tie point is located at the resonance arm is stated, the tuning circuit is connected to end and the ground connection of the resonance arm
Between end, when the antenna system is in mid frequency radiated pattern, the feed circuit turn-on, the tuning circuit is in first
Conducting state, when the antenna system is under high frequency radiation pattern, the feed circuit turn-on, the tuning circuit is in the
Two conducting states.
2. antenna system as claimed in claim 1, it is characterised in that the tuning circuit include the first resonance matching circuit and
Second tune match circuit, the first resonance matching circuit are arranged in parallel with the second tune match circuit, and described first
One end of resonance matching circuit and one end of the second tune match circuit are connected with the second of the resonance arm end respectively
Point connection, the other end of the other end of the first resonance matching circuit and the second tune match circuit respectively with earth terminal
Connection.
3. antenna system as claimed in claim 2, it is characterised in that when the tuning circuit is in the first conducting state,
The first resonance matching circuit breaker, when the tuning circuit is in the second conducting state, the first resonance matching electricity
Road turns on.
4. antenna system as claimed in claim 3, it is characterised in that when the tuning circuit is in the first conducting state,
The second tune match circuit conducting, when the tuning circuit is in the second conducting state, the second tune matching electricity
Road open circuit.
5. antenna system as claimed in claim 4, it is characterised in that the tuning circuit includes first switch, and described first
Switch includes control terminal, first end and the second end, and the first end is connected with the first resonance matching circuit, second end
It is connected with the second tune match circuit, first tie point is connected with the control terminal.
6. antenna system as claimed in claim 5, it is characterised in that when the tuning circuit is in the first conducting state,
The first end is separated with the control terminal, the first resonance matching circuit breaker, second end and the control
Turned between end, the second tune match circuit conducting.
7. antenna system as claimed in claim 5, it is characterised in that when the tuning circuit is in the second conducting state,
Turned between the first end and the control terminal, the first resonance matching circuit turn-on, second end and the control
Separated, the second tune match circuit open circuit at end.
8. antenna system as claimed in claim 3, it is characterised in that the tuning circuit includes second switch, and described second
Switch is connected between the first resonance matching circuit and second tie point, and the second tune match circuit is electric capacity
Element and/or inductance element, when the tuning circuit is in the first conducting state, the second switch disconnects, and described first
Resonance matching circuit breaker, the second tune match circuit conducting, when the tuning circuit is in the second conducting state, institute
State second switch closure, the first resonance matching circuit turn-on, the second tune match circuit conducting.
9. antenna system as claimed in claim 1, it is characterised in that one end of the resonance arm and the sheet of the metal shell
Body connects, and the other end is the end of the resonance arm, and is oppositely arranged with the body of the metal shell.
10. a kind of mobile terminal, it is characterised in that the mobile terminal includes the antenna system as described in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710750667.7A CN107645071A (en) | 2017-08-28 | 2017-08-28 | A kind of antenna system and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710750667.7A CN107645071A (en) | 2017-08-28 | 2017-08-28 | A kind of antenna system and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107645071A true CN107645071A (en) | 2018-01-30 |
Family
ID=61110824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710750667.7A Pending CN107645071A (en) | 2017-08-28 | 2017-08-28 | A kind of antenna system and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107645071A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110911842A (en) * | 2018-09-17 | 2020-03-24 | 青岛海信移动通信技术股份有限公司 | Terminal with radiating body antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204424427U (en) * | 2014-12-29 | 2015-06-24 | 上海安费诺永亿通讯电子有限公司 | A kind of adjustable antenna for all-metal construction communication terminal device |
| CN205029018U (en) * | 2015-10-19 | 2016-02-10 | 广东欧珀移动通信有限公司 | Slot antenna's frequency modulation structure |
| CN205092313U (en) * | 2015-11-05 | 2016-03-16 | 广东欧珀移动通信有限公司 | Metal casing antenna device and mobile terminal |
| CN206211013U (en) * | 2016-11-30 | 2017-05-31 | 深圳天珑无线科技有限公司 | Antenna module and mobile terminal |
-
2017
- 2017-08-28 CN CN201710750667.7A patent/CN107645071A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204424427U (en) * | 2014-12-29 | 2015-06-24 | 上海安费诺永亿通讯电子有限公司 | A kind of adjustable antenna for all-metal construction communication terminal device |
| CN205029018U (en) * | 2015-10-19 | 2016-02-10 | 广东欧珀移动通信有限公司 | Slot antenna's frequency modulation structure |
| CN205092313U (en) * | 2015-11-05 | 2016-03-16 | 广东欧珀移动通信有限公司 | Metal casing antenna device and mobile terminal |
| CN206211013U (en) * | 2016-11-30 | 2017-05-31 | 深圳天珑无线科技有限公司 | Antenna module and mobile terminal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110911842A (en) * | 2018-09-17 | 2020-03-24 | 青岛海信移动通信技术股份有限公司 | Terminal with radiating body antenna |
| CN110911842B (en) * | 2018-09-17 | 2021-05-28 | 青岛海信移动通信技术股份有限公司 | Terminal with radiating body antenna |
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Application publication date: 20180130 |