CN106935955A - Mobile terminal antenna and mobile terminal based on metal shell on the back - Google Patents
Mobile terminal antenna and mobile terminal based on metal shell on the back Download PDFInfo
- Publication number
- CN106935955A CN106935955A CN201710284071.2A CN201710284071A CN106935955A CN 106935955 A CN106935955 A CN 106935955A CN 201710284071 A CN201710284071 A CN 201710284071A CN 106935955 A CN106935955 A CN 106935955A
- Authority
- CN
- China
- Prior art keywords
- metal shell
- mobile terminal
- gap
- terminal antenna
- branch
- 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 title claims abstract description 65
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 65
- 230000005855 radiation Effects 0.000 abstract description 11
- 230000005672 electromagnetic field Effects 0.000 description 6
- 230000000191 radiation effect Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- 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
- H01Q1/243—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 with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Support Of Aerials (AREA)
Abstract
The present invention discloses a kind of mobile terminal antenna based on metal shell on the back, for mobile terminal, the mobile terminal includes metal shell on the back and control circuit, the mobile terminal antenna based on metal shell on the back includes gap and tuning switch chip, the gap is opened on the metal shell on the back, and the tuning switch chip is connected with tuning resonance frequency with the gap and is electrically connected with the control circuit.Compared with prior art, by the gap being opened on the metal shell on the back, the corresponding electromagnetic energy for producing can be gone out by the gap radiation, effectively improves influence of traditional metal shell on the back to mobile terminal inside antenna far-field radiation performance；In addition, by the dynamic selective of the tuning switch chip, equivalent to the equivalent length that dynamic changes the gap, the adjustability of the mobile terminal antenna based on metal shell on the back is effectively improved, frequency band is widened, and simple structure, R＆D cycle be short, cost is relatively low.
Description
Technical field
The present invention relates to field of antenna, more particularly to a kind of mobile terminal antenna based on metal shell on the back.
Background technology
At present, the mobile terminal such as mobile phone uses metal shell on the back more and more, but due to the presence of metal shell on the back is caused
Interior of mobile phone forms resonator, and the electromagnetic energy in turn resulting in handset antenna radiation generation can back and forth vibrate in the resonator,
So as to the far-field radiation to the antenna in mobile terminal is impacted.To solve the above problems, one of which scheme is to metal
Shell on the back carries out segment processing, i.e., the metal being segmented is formed into metal shell on the back by metal injection molded, then the part of sectionalized metallic is made
It is antenna, but, the design needs to carry out the experiment of a large amount of CNC segmenteds metal shell on the backs when early stage carries out antenna tuning, right
Antenna is integrally debugged and brings great limitation, and design, production difficulty are big, and inefficiency is relatively costly, and this is using segmentation
The metal shell on the back that metal is formed cannot be changed once shaping, cause resonance length to adjust, and be only used for a part of fixation
Frequency band, also result in higher to frequency band range requirement；In the other design, the Q values of antenna are by corresponding metallic character, and Q
Value directly affects the bandwidth of antenna, therefore material to metal shell on the back it is also proposed requirement higher.Another scheme be
Gap is offered on metal shell on the back, slot antenna is formed, so as to corresponding electromagnetic energy be radiate, but the party is used
Case, once design is completed, gap is exactly changeless, cannot equally be tuned accordingly, reduces the adjustability of antenna.
The content of the invention
It is an object of the invention to provide a kind of mobile terminal antenna and mobile terminal based on metal shell on the back, can be lifted
The adjustability and simple structure of antenna, R＆D cycle be short, cost is relatively low.
To achieve these goals, the invention discloses a kind of mobile terminal antenna based on metal shell on the back, for moving
Terminal, the mobile terminal includes metal shell on the back and control circuit, and the mobile terminal antenna based on metal shell on the back includes seam
Gap and tuning switch chip, the gap are opened on the metal shell on the back, and the tuning switch chip is connected with the gap
It is electrically connected with tuning resonance frequency and with the control circuit.
Compared with prior art, the mobile terminal antenna based on metal shell on the back is by being opened on the metal shell on the back
Gap, can by produce corresponding electromagnetic energy be gone out by the gap radiation, effectively improve traditional metal shell on the back to move
The influence of dynamic terminal inner Antenna Far Field radiance, the electromagnetic field of the mobile terminal integrally stacks up to approach and is not added with gold
Electromagnetic field far-field radiation situation during category shell on the back；In addition, by the dynamic selective of the tuning switch chip, equivalent to dynamic
Change the equivalent length in the gap, effectively improve the adjustability of the mobile terminal antenna based on metal shell on the back, frequency band
Widened, and simple structure, R＆D cycle be short, cost is relatively low.
It is preferred that the gap is opened in an edge of the backboard of the metal shell on the back, institute is run through in the one end in the gap
State the corresponding edge of backboard, other end closing, so that the gap has more preferable radiation effect.
It is preferred that the gap is opened in the top edge or lower edge of the backboard.
It is preferred that the gap is L-shaped including parallel with the corresponding edge of the backboard the first branch and with described
One branch is vertically connected and through the second branch of the backboard corresponding edge, the structure both made the gap simple structure,
Easy processing, but also with more preferably radiation effect.
It is preferred that the length of first branch is more than the length of second branch, the width of first branch is small
In the width of second branch, the structure further enhances the radiation effect in the gap.
It is preferred that the tuning switch chip holds sense units and switching switch, each appearance sense unit bag including some
Electric capacity or/and inductance are included, the switching switch selectively controls some described one of sense units that hold to be turned on the gap, institute
State switching switch to be electrically connected with the control circuit and controlled by the control circuit, thereby effectively improve described being based on
The adjustability of the mobile terminal antenna of metal shell on the back, frequency band is widened.
It is preferred that it is described switching switch be single pole multiple throw, the single pole multiple throw optionally with some institutes
State the electrical connection or hanging of one of appearance sense unit.
To achieve these goals, mobile terminal of the invention includes metal shell on the back, control circuit and base as described above
In the mobile terminal antenna of metal shell on the back.
Compared with prior art, by the gap being opened on the metal shell on the back, the corresponding electromagnetic energy that will can be produced
Gone out by the gap radiation, effectively improve shadow of traditional metal shell on the back to mobile terminal inside antenna far-field radiation performance
Ring, the electromagnetic field of the mobile terminal integrally stacks up accessible electromagnetic field far-field radiation situation when being not added with metal shell on the back；
In addition, by the dynamic selective of the tuning switch chip, equivalent to the equivalent length that dynamic changes the gap, effectively carrying
The adjustability of the mobile terminal antenna based on metal shell on the back is risen, frequency band is widened, and simple structure, R＆D cycle
Short, cost is relatively low.
Brief description of the drawings
Fig. 1 is the metal shell on the back of the embodiment of the present invention and the structural representation of tuning switch chip.
Fig. 2 is the internal structure schematic diagram of the tuning switch chip of the embodiment of the present invention.
Fig. 3 is the equivalent circuit diagram of the mobile terminal antenna based on metal shell on the back of the embodiment of the present invention.
Specific embodiment
It is the effect for describing technology contents of the invention, structural feature in detail, being realized, below in conjunction with implementation method and matches somebody with somebody
Accompanying drawing is closed to be explained in detail.
Fig. 1 to Fig. 3 discloses a kind of mobile terminal antenna based on metal shell on the back of the embodiment of the present invention, for mobile whole
End (not shown), the mobile terminal includes metal shell on the back 100, and the mobile terminal antenna based on metal shell on the back includes opening up
Gap 10 on the metal shell on the back 100 and it is connected with the gap 10 with the tuning switch chip 20 of tuning resonance frequency,
The tuning switch chip 20 is by the control circuit 30 that controls pin (not shown) to be electrically connected in the mobile terminal.
Compared with prior art, the mobile terminal antenna based on metal shell on the back is by being opened in the metal shell on the back
, by the gap 10 can be radiate the corresponding electromagnetic energy that produced by the gap 10 on 100, effectively improve traditional metal
Influence of the shell on the back to mobile terminal inside antenna far-field radiation performance, the electromagnetic field of the mobile terminal integrally stacks up and can connect
Closely it is not added with electromagnetic field far-field radiation situation during metal shell on the back；In addition, by the dynamic selective of the tuning switch chip 20,
Equivalent to the equivalent length that dynamic changes the gap 10, the mobile terminal antenna based on metal shell on the back is effectively improved
Adjustability, frequency band is widened, and simple structure, R＆D cycle be short, cost is relatively low.
Fig. 1 is referred to, it is preferred that the gap 10 is opened in an edge of the backboard 101 of the metal shell on the back 100, institute
State the corresponding edge of the one end through the backboard 101 in gap 10, other end closing, so that the gap 10 has more preferably
Radiation effect；It is preferred that the gap 10 is opened in the top edge or lower edge (" upper and lower " herein of the backboard 101
It is the normal operating condition with mobile terminal as reference)；It is preferred that the gap 10 is L-shaped, including with the backboard 101
The first parallel branch 11 of corresponding edge and it is vertically connected with first branch 11 and through the corresponding edge of the backboard 101
Second branch 12, the structure had both made the simple structure in the gap 10, easy processing, but also with more preferably radiation effect；It is preferred that
, more than the length of second branch 12, the width of first branch 11 is less than described second for the length of first branch 11
The width of branch 12, the structure further enhances the radiation effect in the gap 10.
Fig. 2 is referred to, specifically, the tuning switch chip 20 includes some appearance sense units 21 and switching switch 22, often
Holding sense unit 21 described in one includes electric capacity or/and inductance, and the switching switch 22 selectively controls some appearance sense units
One of 21 turn on the gap 10, and the switching switch 22 is electrically connected with and by the control circuit with the control circuit 30
30 control, thereby effectively improves the adjustability of the mobile terminal antenna based on metal shell on the back, and frequency band is widened；Compared with
Goodly, the switching switch 22 is single pole multiple throw, and in specific implementation, the switching switch 22 is the throw switch of hilted broadsword four, institute
The quantity for stating appearance sense unit 21 is four, and the appearance described with four of the throw switch of the hilted broadsword four selectivity is felt one of unit 21 and is electrically connected
Connect or vacantly；In this specific embodiment, four sense units 21 that hold are the different capacitor cell of capacitance, but should not be with this
It is limited.Fig. 3 show when it is some it is described hold sense units 21 be capacitor cell when, the mobile terminal antenna based on metal shell on the back
Equivalent schematic diagram, the gap 10 is equivalent to electric capacity C, it is some it is described hold sense units 21 be equivalent to it is in parallel with the gap 10
One tunable capacitor Ca.
Above disclosed is only preferred embodiments of the invention, can not limit the right model of the present invention with this certainly
Enclose, therefore the equivalent variations made according to scope of the present invention patent, still fall within the scope that the present invention is covered.
Claims (8)
1. a kind of mobile terminal antenna based on metal shell on the back, for mobile terminal, the mobile terminal include metal shell on the back and
Control circuit, it is characterised in that the mobile terminal antenna based on metal shell on the back includes：
Gap, the gap is opened on the metal shell on the back；And
Tuning switch chip, is connected with tuning resonance frequency with the gap and is electrically connected with the control circuit.
2. the mobile terminal antenna of metal shell on the back is based on as claimed in claim 1, it is characterised in that the gap is opened in institute
An edge of the backboard of metal shell on the back is stated, the one end in the gap is through the corresponding edge of the backboard, other end closing.
3. the mobile terminal antenna of metal shell on the back is based on as claimed in claim 2, it is characterised in that the gap is opened in institute
State the top edge or lower edge of backboard.
4. the mobile terminal antenna of metal shell on the back is based on as claimed in claim 2 or claim 3, it is characterised in that the gap is in L
Shape, including first branch parallel with the corresponding edge of the backboard and be vertically connected and through the back of the body with first branch
Second branch of plate corresponding edge.
5. the mobile terminal antenna of metal shell on the back is based on as claimed in claim 4, it is characterised in that the length of first branch
Degree is more than the length of second branch, the width of the width less than second branch of first branch.
6. the mobile terminal antenna of metal shell on the back is based on as claimed in claim 4, it is characterised in that the tuning switch chip
Hold sense unit and switching switch including some, each sense unit that holds includes electric capacity or/and inductance, and the switching switch is optional
Some described one of sense units that hold are controlled to be turned on the gap with selecting, the switching switch is electrically connected with the control circuit
And controlled by the control circuit.
7. the mobile terminal antenna of metal shell on the back is based on as claimed in claim 6, it is characterised in that the switching switch is single
Knife multithrow switch, the single pole multiple throw is optionally electrically connected or hanging with some described one of sense units that hold.
8. a kind of mobile terminal, it is characterised in that including metal shell on the back, control circuit and as described in claim any one of 1-7
The mobile terminal antenna based on metal shell on the back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710284071.2A CN106935955A (en) | 2017-04-26 | 2017-04-26 | Mobile terminal antenna and mobile terminal based on metal shell on the back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710284071.2A CN106935955A (en) | 2017-04-26 | 2017-04-26 | Mobile terminal antenna and mobile terminal based on metal shell on the back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106935955A true CN106935955A (en) | 2017-07-07 |
Family
ID=59437544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710284071.2A Pending CN106935955A (en) | 2017-04-26 | 2017-04-26 | Mobile terminal antenna and mobile terminal based on metal shell on the back |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106935955A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111585054A (en) * | 2019-02-18 | 2020-08-25 | 华为技术有限公司 | Tuning device, antenna device and terminal equipment |
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| US6150989A (en) * | 1999-07-06 | 2000-11-21 | Sky Eye Railway Services International Inc. | Cavity-backed slot antenna resonating at two different frequencies |
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| JP2010050278A (en) * | 2008-08-21 | 2010-03-04 | Sharp Corp | Electric device |
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| US20110241948A1 (en) * | 2010-03-30 | 2011-10-06 | Peter Bevelacqua | Cavity-backed slot antenna with near-field-coupled parasitic slot |
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2017
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111585054A (en) * | 2019-02-18 | 2020-08-25 | 华为技术有限公司 | Tuning device, antenna device and terminal equipment |
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| CN111585054B (en) * | 2019-02-18 | 2021-11-05 | 荣耀终端有限公司 | Tuning device, antenna device and terminal equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171009 Address after: 100016 Beijing City, Chaoyang District Road No. 5 Building No. 5 hospital room 5103 Applicant after: BEIJING HAIHANG COMMUNICATION TECHNOLOGY CO., LTD. Address before: 200233 Shanghai 810, Yishan Road, Xuhui District, 18, 6 stories Applicant before: SHANGHAI HUAZHANG INFORMATION TECHNOLOGY CO., LTD. |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180321 Address after: 200000, Xuhui District, Yishan Road, No. 810, 18, 6, Shanghai Applicant after: SHANGHAI HUAZHANG INFORMATION TECHNOLOGY CO., LTD. Address before: 100016 Beijing City, Chaoyang District Road No. 5 Building No. 5 hospital room 5103 Applicant before: BEIJING HAIHANG COMMUNICATION TECHNOLOGY CO., LTD. |