CN105789831A - Mobile terminal and antenna structure thereof - Google Patents
Mobile terminal and antenna structure thereof Download PDFInfo
- Publication number
- CN105789831A CN105789831A CN201610224902.2A CN201610224902A CN105789831A CN 105789831 A CN105789831 A CN 105789831A CN 201610224902 A CN201610224902 A CN 201610224902A CN 105789831 A CN105789831 A CN 105789831A
- Authority
- CN
- China
- Prior art keywords
- antenna structure
- edge frame
- metal edge
- described metal
- metal floor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Support Of Aerials (AREA)
Abstract
The present invention discloses an antenna structure. The antenna structure is used for taking ad a base shell and comprises a metal floor, a metal frame, a feeding port, a matching circuit, a resonance circuit and a parasitic branch knot. A slit with a width in the range from 0.5mm to 3mm is arranged between the metal floor and the metal frame; the feeding port is electrically connected with the metal floor and is electrically connected with the metal frame through the matching circuit; and one end of the parasitic branch knot is electrically connected with the metal floor through the resonance circuit. The antenna structure is able to realize multi-band frequency work, and is small in size and required space and high in practicality. The present invention further discloses a mobile terminal with the antenna structure.
Description
Technical field
The present invention relates to antenna technical field, particularly relate to a kind of mobile terminal and antenna structure thereof.
Background technology
For meeting the demand of smaller wireless devices, manufacturer is continually striving to the radio communication circuit utilizing cramped construction to realize such as antenna module.Simultaneously, it may be desirable to include conductive structure in an electronic, such as metal device casing assembly.Because conductive component can affect radio-frequency performance, therefore must be careful when antenna is incorporated in the electronic installation including conductive structure.And the solution of metal edge frame antenna for mobile phone is usually unfavorable for performance because of the size of the antenna free space on equipment.
Summary of the invention
Based on this, it is necessary to providing a kind of can work and smaller antenna structure by multiband.
A kind of antenna structure, for as shell on the back, including metal floor, metal edge frame, feed port, match circuit, resonance circuit and parasitic minor matters；
The gap that width is 0.5 millimeter to 3 millimeters it is provided with between described metal floor and described metal edge frame；
Described feed port electrically connects with described metal floor, and is electrically connected with described metal edge frame by described match circuit；
Described parasitic minor matters one end is electrically connected with described metal floor by described resonance circuit.
Wherein in an embodiment, described parasitic minor matters are positioned in two different planes from described metal floor.
Wherein in an embodiment, described resonance circuit includes the first electric capacity and the first inductance that are in series.
Wherein in an embodiment, the Q-value of described first electric capacity is more than the first preset value, and the Q-value of described first inductance is more than the second preset value.
Wherein in an embodiment, described antenna structure also includes switching switch；The two ends of described switching switch electrically connect with described metal floor and described metal edge frame respectively；And
The two ends of described metal edge frame respectively the first end and the second end；Described feed port to the distance of described metal edge frame the first end more than the described feed port distance to described metal edge frame the second end；
Described switching switch is between described feed port and described metal edge frame the first end.
Wherein in an embodiment, described switching switch is single-pole single-throw switch (SPST), single-pole double-throw switch (SPDT) or hilted broadsword four throw switch；And
Described switching switch includes inductance and/or electric capacity.
Wherein in an embodiment, described antenna structure also includes the second electric capacity, and described match circuit includes the 3rd electric capacity；
The two ends of described second electric capacity electrically connect with described metal floor and described metal edge frame respectively；
The two ends of described 3rd electric capacity electrically connect with described metal floor and described metal edge frame respectively.
Wherein in an embodiment, also include earth terminal；Described earth terminal connects described metal floor and described metal edge frame.
Wherein in an embodiment, the width in described gap is 2 millimeters；And described gap is filled with nonmetallic materials.
It addition, the present invention also proposes a kind of mobile terminal, including any one antenna structure above-mentioned, described antenna structure is simultaneously as the shell on the back of described mobile terminal.
Above-mentioned mobile terminal and antenna structure thereof, be provided with gap between metal floor and metal edge frame, and feed port is electrically connected with metal edge frame by match circuit, and one end of parasitic minor matters is electrically connected with metal floor by resonance circuit.It is for the signal of different frequency range, and electric current can realize multiband work respectively through corresponding circuit paths, and physical dimension is less, and required space is less, and practicality is stronger.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of inventive antenna structure；
Fig. 2 is the frequency response schematic diagram in one embodiment of inventive antenna structure；
Fig. 3 is the first current path schematic diagram in one embodiment of inventive antenna structure；
Fig. 4 is the second current path schematic diagram in one embodiment of inventive antenna structure；
Fig. 5 is the 3rd current path schematic diagram in one embodiment of inventive antenna structure.
Detailed description of the invention
For making the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the detailed description of the invention of mobile terminal of the present invention and antenna structure thereof is illustrated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, in an embodiment, antenna structure can serve as shell on the back, including metal floor 100, metal edge frame 200, feed port 400, match circuit 500, resonance circuit 600 and parasitic minor matters 700.The gap 300 that width is 0.5 millimeter to 3 millimeters it is provided with between metal floor 100 and metal edge frame 200.Feed port 400 electrically connects with metal floor 100, and is electrically connected with metal edge frame 200 by match circuit 500.Parasitic minor matters 700 one end is electrically connected with metal floor 100 by resonance circuit 600.Wherein, parasitic minor matters 700 may be located in two different planes from metal floor 100.Parasitic minor matters 700 are conductive material, for instance for metal.
In one embodiment, resonance circuit 600 can include the first electric capacity and the first inductance that are in series.Wherein, the resonant frequency of the first electric capacity and the first inductance is the first preset value.Concrete, this first preset value can be the value more than 2.5GHz.It addition, the first electric capacity is preferably the electric capacity of high q-factor, the first inductance is preferably the inductance of high q-factor.Concrete, the Q-value of the first electric capacity is more than the first preset value, and the Q-value of the first inductance is more than the second preset value.Illustrate for lc circuit with resonance circuit 600 above, but be not limited thereto.In other embodiments, resonance circuit 600 can also be other circuit.
Preferably, antenna structure can also include switching switch 800.The two ends of switching switch 800 electrically connect with metal floor 100 and metal edge frame 200 respectively.The two ends of metal edge frame 100 respectively the first end and the second end.Feed port 400 arrives the distance distance more than feed port 400 to metal edge frame 200 second end of metal edge frame 200 first end.Switching switch 800 is between feed port 400 and metal edge frame 200 first end.By direction shown in Fig. 1, the right-hand member of metal edge frame 200 is the first end, and left end is the second end.Feed port 400 arrives the distance distance more than feed port 400 to metal edge frame 200 left end of metal edge frame 200 right-hand member.Switching switch 800 is between feed port 400 and metal edge frame 200 right-hand member.
Wherein, switching switch 800 can be single-pole single-throw switch (SPST), single-pole double-throw switch (SPDT) or hilted broadsword four throw switch.Switching switch 800 can include inductance and/or electric capacity.That is, often spending extravagantly of switching switch 800 can include inductively or capacitively.Switching switch 800 one end connects metal edge frame 200, and the other end can pass through inductively or capacitively to electrically connect with metal floor 100, it is also possible to is directly connected with metal floor 100.Switching switch coordinates different inductance value, it is possible to the low frequency frequency range of switching antenna structure so that antenna structure can cover the frequency band of 699MHZ～960MHZ scope.
Alternatively, it is also possible to switching is switched 800 replace with the second electric capacity.The two ends of the second electric capacity electrically connect with metal floor 100 and metal edge frame 200 respectively.Now in order to enable antenna structure to cover low frequency bandwidth, match circuit 500 needs to include the 3rd electric capacity.The two ends of the 3rd electric capacity electrically connect with metal floor 100 and metal edge frame 200 respectively.Other circuit structures of 3rd electric capacity and match circuit 500 are series relationship.
Further, antenna structure can also include earth terminal 900.The two ends of earth terminal 900 connect metal floor 100 and metal edge frame 200 respectively.The connected modes such as earth terminal 900 can be connected for shell fragment with the connected mode of metal floor 100 and metal edge frame 200, screw connection, are not construed as limiting this.
Below in conjunction with accompanying drawing, the operation principle of this antenna structure is described.First definition: the position that feed port 400 electrically connects with metal floor 100 is original position.
Referring to Fig. 3, the first current path is: by original position, and matched circuit 500 is around the first end of metal edge frame 200.The dotted line with arrow thicker in Fig. 3 is the first current path.Wherein, the low-frequency resonant frequency range that the first current path can be corresponding between corresponding diagram 2 midpoint 1 and point 2.In fig. 2, abscissa is Frequency (frequency), and unit is GHz；The longitudinal axis is S11 (return loss characteristic) parameter, and unit is dB.Furthermore it is also possible to the low-frequency resonant frequency range corresponding by switching switch 800 adjustment the first current path, finally making the low-frequency resonant frequency range that the first current path is corresponding can be bigger scope: a 699MHZ～960MHZ.
Referring to Fig. 4, the second current path is: by original position, and matched circuit 500 is around the second end of metal edge frame 200.The dotted line with arrow thicker in Fig. 4 is the second current path.Wherein, the intermediate frequency resonant frequency range that the second current path can be corresponding between corresponding diagram 2 midpoint 3 and point 4.
Referring to Fig. 5, the 3rd current path is: by original position, through one end that resonance circuit 600 is not connected with resonance circuit 600 to parasitic minor matters 700.The dotted line with arrow thicker in Fig. 5 is the 3rd current path.Wherein, the high-frequency resonant frequency range that the 3rd current path can be corresponding between corresponding diagram 2 midpoint 5 and point 6.By resonance circuit 600, parasitic minor matters 700 can realize, by shorter length, the quarter-wave that high-frequency resonant frequency is corresponding.
It addition, the width in gap 300 can be the arbitrary value between 0.5 millimeter to 3 millimeters.In this width range, can either ensure that whole metal floor 100 has higher structural integrity, it is also possible to ensure the cosmetic look of metal floor 100 and metal edge frame 200.In one embodiment, the width in gap 300 is 2 millimeters.The length direction in gap 300 can be the direction along metal floor 100 longer sides, it is also possible to along the direction of metal floor 100 shorter edge.Gap 300 can be filled with the nonmetallic materials such as plastic cement, it is possible to further up to attractive in appearance and firmly effect.
Further, metal floor 100 can be planar structure, it is also possible to bending, has certain radian, to adapt to adopt the configuration design of the mobile terminal of above-mentioned antenna structure.
Above-mentioned antenna structure, is provided with gap 300 between metal floor 100 and metal edge frame 200, and feed port 400 is electrically connected with metal edge frame 200 by match circuit 500, and parasitic minor matters 700 one end is electrically connected with metal floor 100 by resonance circuit 600.Above-mentioned antenna structure is for the signal of different frequency range, and electric current can realize multiband work respectively through corresponding circuit paths, and required space is less, and practicality is stronger.
In one embodiment, also disclosing a kind of mobile terminal, including any one antenna structure above-mentioned, antenna structure is as the shell on the back of mobile terminal simultaneously.This mobile terminal has above-mentioned antenna structure have the advantage that.This mobile terminal can be the terminal such as mobile phone, panel computer.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an antenna structure, for as shell on the back, it is characterised in that include metal floor, metal edge frame, feed port, match circuit, resonance circuit and parasitic minor matters；
The gap that width is 0.5 millimeter to 3 millimeters it is provided with between described metal floor and described metal edge frame；
Described feed port electrically connects with described metal floor, and is electrically connected with described metal edge frame by described match circuit；
Described parasitic minor matters one end is electrically connected with described metal floor by described resonance circuit.
2. antenna structure according to claim 1, it is characterised in that described parasitic minor matters are positioned in two different planes from described metal floor.
3. antenna structure according to claim 1, it is characterised in that described resonance circuit includes the first electric capacity and the first inductance that are in series.
4. antenna structure according to claim 3, it is characterised in that the Q-value of described first electric capacity is more than the first preset value, and the Q-value of described first inductance is more than the second preset value.
5. the antenna structure according to Claims 1-4 any one, it is characterised in that described antenna structure also includes switching switch；The two ends of described switching switch electrically connect with described metal floor and described metal edge frame respectively；And
The two ends of described metal edge frame respectively the first end and the second end；Described feed port to the distance of described metal edge frame the first end more than the described feed port distance to described metal edge frame the second end；
Described switching switch is between described feed port and described metal edge frame the first end.
6. antenna structure according to claim 5, it is characterised in that described switching switch is single-pole single-throw switch (SPST), single-pole double-throw switch (SPDT) or hilted broadsword four throw switch；And
Described switching switch includes inductance and/or electric capacity.
7. the antenna structure according to Claims 1-4 any one, it is characterised in that described antenna structure also includes the second electric capacity, and described match circuit includes the 3rd electric capacity；
The two ends of described second electric capacity electrically connect with described metal floor and described metal edge frame respectively；
The two ends of described 3rd electric capacity electrically connect with described metal floor and described metal edge frame respectively.
8. antenna structure according to claim 1, it is characterised in that also include earth terminal；Described earth terminal connects described metal floor and described metal edge frame.
9. antenna structure according to claim 1, it is characterised in that the width in described gap is 2 millimeters；And described gap is filled with nonmetallic materials.
10. a mobile terminal, it is characterised in that including the antenna structure described in claim 1 to 9 any one, the metal floor of described antenna structure is as the shell on the back of described mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224902.2A CN105789831A (en) | 2016-04-11 | 2016-04-11 | Mobile terminal and antenna structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224902.2A CN105789831A (en) | 2016-04-11 | 2016-04-11 | Mobile terminal and antenna structure thereof |
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| CN105789831A true CN105789831A (en) | 2016-07-20 |
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| CN201610224902.2A Pending CN105789831A (en) | 2016-04-11 | 2016-04-11 | Mobile terminal and antenna structure thereof |
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| CN106374227A (en) * | 2016-08-25 | 2017-02-01 | 耀登电通科技（昆山）有限公司 | Wireless communication apparatus and antenna structure |
| CN106450677A (en) * | 2016-10-31 | 2017-02-22 | 维沃移动通信有限公司 | Antenna structure, method and mobile terminal |
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| CN107666036A (en) * | 2016-07-21 | 2018-02-06 | 深圳富泰宏精密工业有限公司 | Antenna structure and the radio communication device with the antenna structure |
| CN107706504A (en) * | 2017-11-06 | 2018-02-16 | 深圳市信维通信股份有限公司 | A kind of mobile terminal antenna for supporting full frequency band to cover |
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| CN106299608B (en) * | 2016-09-30 | 2019-03-19 | 努比亚技术有限公司 | A kind of band spreading structure of terminal antenna |
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| CN106532268A (en) * | 2016-10-31 | 2017-03-22 | 维沃移动通信有限公司 | Antenna structure and mobile terminal |
| CN106450677A (en) * | 2016-10-31 | 2017-02-22 | 维沃移动通信有限公司 | Antenna structure, method and mobile terminal |
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Application publication date: 20160720 |