CN107302141A - Mobile terminal and its antenna system - Google Patents
Mobile terminal and its antenna system Download PDFInfo
- Publication number
- CN107302141A CN107302141A CN201710381100.7A CN201710381100A CN107302141A CN 107302141 A CN107302141 A CN 107302141A CN 201710381100 A CN201710381100 A CN 201710381100A CN 107302141 A CN107302141 A CN 107302141A
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- mobile terminal
- antenna system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
-
- 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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Present invention is disclosed a kind of mobile terminal and its antenna system, the antenna system includes the rear shell that conductor is made, shell subsection setup afterwards, including the first back-cover and the second back-cover, first back-cover is corresponding with the battery of mobile terminal, antenna system also includes the tuning circuit and distributing point being arranged on the fore shell of mobile terminal, tuning circuit includes control unit, switching switch and at least two feedback places being sequentially connected, each feedback place of the changeable connection of control unit control switching switch, the second back-cover connects feedback place and distributing point respectively；Control unit is used for：The optimum signal scheme under current state is counted in the connection scheme of all feedback places, the feedback place corresponding to optimum signal scheme is chosen, control switching switch switching is connected to the feedback place of selection.So as to realize the full frequency band tuning of antenna, both without designing antenna cabling, greatly reduce cost, flexibility and the precision of the radiance and antenna tuning of antenna are improved again.
Description
Technical field
The present invention relates to communication technical field, a kind of mobile terminal and its antenna system are especially related to.
Background technology
Mobile terminal is a kind of important radio communication equipment, and the antenna of mobile terminal is then mobile terminal realizes nothing
The necessary condition of line telecommunication, it carries mobile terminal and sends signal and receive the critical function of signal, is also mobile terminal
The important factor in order of communication quality.Requirement with user to mobile terminal outward appearance is improved constantly, more and more metal appearances
Mobile terminal occur commercially, and in order to meet antenna performance, be generally required for using after metal shell as the one of antenna
Part is radiated.However, this antenna design, it is difficult to realize the full frequency band tuning of antenna on a carrier, and is adjusted
Humorous flexibility and antenna radiation performance are all poor, it is difficult to meet requirement of the user to antenna performance.
Therefore, how it can realize that full frequency band is tuned for mobile terminal design one kind of shell after metal, and be adjusted flexibly
The antenna system of antenna resonant frequency is adjusted, is the technical problem of current urgent need to resolve.
The content of the invention
The main object of the present invention is a kind of mobile terminal of offer and its antenna system, it is intended to solve shell movement after metal whole
The antenna system at end can not realize the technical problem of full frequency band tuning.
To achieve these objectives, the present invention proposes a kind of antenna system of mobile terminal, and the system includes what conductor was made
Shell, the rear shell subsection setup, including the first back-cover and the second back-cover afterwards, first back-cover and the battery of the mobile terminal
Corresponding, the antenna system also includes the tuning circuit and distributing point being arranged on the fore shell of the mobile terminal, the tune
Humorous circuit include be sequentially connected control unit, switching switch and at least two feedback places, described control unit control described in cut
Change and switch each feedback place of changeable connection, second back-cover connects the feedback place and the distributing point respectively；It is described
Control unit is used for：Count the optimum signal scheme under current state in the connection scheme of all feedback places, choose described in most
Feedback place corresponding to good signaling plan, controls the switching switch switching to be connected to the feedback place of selection.
Alternatively, described control unit is used for：
When detecting the frequency range of radiofrequency signal of current transmission and changing, the switching switch is controlled to be sequentially connected often
One is presented place to transmit current radiofrequency signal, and obtains signal intensity when transmitting the radiofrequency signal, from the institute of acquisition
Have and highest signal strength is selected in signal intensity, using the feedback place connection scheme corresponding to the highest signal strength as described
Optimum signal scheme.
Alternatively, the antenna system also includes the first tuning device for connecting the switching switch, first tuning
Device and the feedback place are in parallel or series between the feedback place and switching switch.
Alternatively, first tuning device is electric capacity and/or inductance.
Alternatively, the antenna system also includes the passive antenna and second tune device being arranged on the fore shell, institute
State second tune device and connect the passive antenna.
Alternatively, the second tune device is variable condenser and/or variometer.
Alternatively, second back-cover is located at the upper end or lower end of the mobile terminal.
Alternatively, the distributing point is corresponding with second back-cover, and positioned at the central region of the mobile terminal.
Alternatively, the central region of the mobile terminal lower end is provided with USB interface, when second back-cover is positioned at described
During the lower end of mobile terminal, the distributing point is located at the side of the USB interface.
Alternatively, the rear shell also includes the 3rd back-cover, and second back-cover and the 3rd back-cover are placed in described the
The upper and lower ends of one back-cover.
Alternatively, the antenna system also includes a tuning circuit and a distributing point, and the 3rd back-cover connects respectively
Connect feedback place and distributing point of the tuning circuit.
Alternatively, the switching switch is single pole multiple throw.
Alternatively, described control unit is used for：
Obtain the frequency range of the radiofrequency signal of current transmission, choose the feedback place corresponding with the frequency range, control described in cut
Change the feedback place that switch switching is connected to selection.
Alternatively, described control unit is used for：
The centre frequency of the radiofrequency signal of current transmission is obtained, optimal antenna length is determined according to the centre frequency, than
The size of the optimal antenna length and the actual antennas length corresponding to each feedback place, chooses and the optimal antenna
Feedback place corresponding to the immediate actual antennas length of length, controls the switching switch switching to be connected to the feedback of selection
Place.
Alternatively, described control unit is used for：
The wavelength of the radiofrequency signal is calculated according to the centre frequency, using a quarter length of the wavelength as
The optimal antenna length.
The present invention proposes a kind of mobile terminal simultaneously, and the mobile terminal includes an antenna system, the antenna system bag
The rear shell that conductor is made, the rear shell subsection setup, including the first back-cover and the second back-cover are included, first back-cover is moved with described
The battery of dynamic terminal is corresponding, and the antenna system also includes tuning circuit and the feedback being arranged on the fore shell of the mobile terminal
Electric, the tuning circuit includes control unit, switching switch and at least two feedback places being sequentially connected, described control unit
Each feedback place of the changeable connection of the control switching switch, second back-cover connects the feedback place and the feedback respectively
Electric point.
The antenna system for a kind of mobile terminal that the embodiment of the present invention is provided, by being set on the fore shell of mobile terminal
One distributing point and multiple feedback places, and the radiating principal of shell after part metals as antenna is connected with distributing point and feedback place
Connect, and control the different feedback place of the changeable connection of switching switch, to realize the full frequency band tuning of antenna.So as to both need not
Designing antenna cabling, greatly reduces cost, improve again antenna radiance and antenna tuning flexibility and precisely
Degree, enhances the antijamming capability of antenna system.
Also, carry out Auto-matching to feedback place connection scheme to obtain optimal antenna radiance by control unit,
Relevant parameter and the corresponding relation in feedback place are pre-set and stored without technical staff, are improved intelligent level, are reduced
The workload of early stage R ＆ D design, reduces development cost, and further increase the flexibility of tuning.
Brief description of the drawings
Fig. 1 is the structural representation of the antenna system of the mobile terminal of one embodiment of the invention；
Fig. 2 is the partial structural diagram of the antenna system of the embodiment of the present invention；
Fig. 3-1 is the Surface current distribution effect of mobile terminal when the antenna system of the embodiment of the present invention is operated in low-frequency range
Figure；
Fig. 3-2 is the Surface current distribution effect of mobile terminal when the antenna system of the embodiment of the present invention is operated in Mid Frequency
Figure；
Fig. 3-3 is the Surface current distribution effect of mobile terminal when the antenna system of the embodiment of the present invention is operated in high band
Figure.
The implication respectively marked in accompanying drawing：
Shell after 10- fore shells 20-
21- the first back-cover the second back-covers of 22-
The back-cover 30- distributing points of 23- the 3rd
41- feedback place S- switching switches
42- control unit 50- mainboards
60- passive antenna 70- second tune devices
80-USB interfaces
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is individual ", " described " and "the" may also comprise plural form.It is to be further understood that what is used in the specification of the present invention arranges
Diction " comprising " refer to there is the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or can also exist
Intermediary element.In addition, " connection " used herein or " coupling " can include wireless connection or wireless coupling.It is used herein to arrange
Taking leave "and/or" includes one or more associated wholes or any cell for listing item and all combines.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology), with the general understanding identical meaning with the those of ordinary skill in art of the present invention.Should also
Understand, those terms defined in such as general dictionary, it should be understood that with the context with prior art
The consistent meaning of meaning, and unless by specific definitions as here, otherwise will not use idealization or excessively formal implication
To explain.
Those skilled in the art of the present technique are appreciated that " terminal " used herein above, " terminal device " both include wireless communication
The equipment of number receiver, it only possesses the equipment of the wireless signal receiver of non-emissive ability, includes receiving again and transmitting hardware
Equipment, its have can on bidirectional communication link, perform two-way communication reception and launch hardware equipment.This equipment
It can include：Honeycomb or other communication equipments, it has single line display or multi-line display or shown without multi-line
The honeycomb of device or other communication equipments；PCS (Personal Communications Service, PCS Personal Communications System), it can
With combine voice, data processing, fax and/or its communication ability；PDA (Personal Digital Assistant, it is personal
Digital assistants), it can include radio frequency receiver, pager, the Internet/intranet access, web browser, notepad, day
Go through and/or GPS (Global Positioning System, global positioning system) receiver；Conventional laptop and/or palm
Type computer or other equipment, its have and/or conventional laptop and/or palmtop computer including radio frequency receiver or its
His equipment." terminal " used herein above, " terminal device " they can be portable, can transport, installed in the vehicles (aviation,
Sea-freight and/or land) in, or be suitable for and/or be configured in local runtime, and/or with distribution form, operate in the earth
And/or any other position operation in space." terminal " used herein above, " terminal device " can also be communication terminal, on
Network termination, music/video playback terminal, for example, can be PDA, MID (Mobile Internet Device, mobile Internet
Equipment) and/or the equipment such as mobile phone or intelligent television with music/video playing function, set top box.
Reference picture 1, proposes the antenna system of one embodiment of the invention, and the antenna system includes rear shell 20, tuning circuit
With distributing point 30, the rear subsection setup of shell 20, including the first back-cover 21 and the second back-cover 22, the first back-cover 21 and the electricity of mobile terminal
The position in pond is corresponding, and the second back-cover 22 is corresponding with the position of tuning circuit and distributing point 30, tuning circuit and distributing point 30
It is arranged on the fore shell 10 of mobile terminal.
As shown in figure 1, in the present embodiment, rear shell 20 is set for three-stage, by the first back-cover 21, the second back-cover 22 and the 3rd
23 3 sections of compositions of back-cover.Second back-cover 22 and the 3rd back-cover 23 are placed in the upper and lower ends of the first back-cover 21, wherein, the second back-cover 22
Positioned at mobile terminal lower end (i.e. microphone one end of mobile terminal), the 3rd back-cover 23 is located at mobile terminal upper end (i.e. mobile terminal
Receiver one end).Plastic cement can be filled by having between first back-cover 21 and the second back-cover 22 and the 3rd back-cover 23 in gap, gap
Deng insulating materials.Shell 20 is made up of conductor afterwards, shell 20 preferably after metal.
In other embodiments, rear shell 20 can also be set for two-part, and the second back-cover 22 can be located on mobile terminal
End, can also be located at mobile terminal lower end.
As shown in figure 1, tuning circuit includes control unit 42, the switching feedbacks of switch S and at least two place being sequentially connected
41.The mainboard 50 (or daughter board) and the first back-cover 21 of mobile terminal are main as mobile terminal；In second back-cover 22 and fore shell
Distributing point 30 and all feedback places 41 connect, as the radiating principal of antenna, as shown in Fig. 2 the feedback projection of place 41 exists
On fore shell 10, when rear shell 20 is assembled together with fore shell 10, shell 20 is directly connected with the second back-cover 22 after feedback place 41 is abutted；
Distributing point 30 connects the radio-frequency module (not shown) being integrated on mainboard 50 (or daughter board), is used as the main feed source (excitation) of antenna.
Switching switch S is preferably single pole multiple throw (being controlled by MIPI circuits), and the control switching switch of control unit 42 S is changeable
Connect each feedback place 41.Control unit 42 is preferably integrated on mainboard 50 (or daughter board), for example, on mainboard 50 (or daughter board)
Main control chip be used as control unit 42.
When it is implemented, logical value can be changed by communication software, to control 41, the feedback place of each required frequency range
Put, so as to precisely tune medium-high frequency frequency range.Tuning control can be integrated into software code, for volume production reparation frequency deviation, opened up
Wide bandwidth and to each frequency range optimal design.
In the embodiment of the present invention, control unit 42 can carry out Auto-matching to obtain optimal day to feedback place connection scheme
Beta radiation performance, so as to precisely tune medium-high frequency frequency range.Specifically, control unit 42 is first in the connection scheme of all feedback places
The optimum signal scheme that programming count goes out under current state, then chooses the feedback place 41 corresponding to optimum signal scheme, finally
Control switching switch S switchings are connected to the feedback place 41 of selection, so as to obtain optimal antenna radiance.
For example, when detecting the frequency range of radiofrequency signal of current transmission and changing, the control switching of control unit 42 is opened
Signal intensity when closing S to be sequentially connected each feedback place 41 to transmit current radiofrequency signal, and obtaining transmitting radio frequency signal,
Travel through behind all feedback places 41, (each feedback place 41 one signal intensity of correspondence) is selected from all signal intensities of acquisition
Highest signal strength, using the feedback place connection scheme corresponding to highest signal strength as optimum signal scheme, finally control is cut
Change switch S and switch the feedback place 41 being connected to corresponding to optimum signal scheme.The height of signal intensity can be by launching or connecing
The power collected mail number judges, when launch or receive signal power it is larger when, then signal intensity is high, on the contrary then signal intensity
It is low.
This tuning manner is matched automatically by control unit completely, without technical staff pre-set relevant parameter with
The corresponding relation in place 41 is presented, it is more intelligent, the workload of early stage R ＆ D design is reduced, development cost is reduced, and
Further increase the flexibility of tuning.
In other embodiments, technical staff can also set and store in the terminal in advance relevant parameter and feedback ground
Point 41 corresponding relation, control unit 42 according to default relevant parameter with feedback place 41 corresponding relation be tuned control come
Obtain optimal antenna radiation performance.Specifically, control unit 42 can control switching switch S to carry out feedback ground in the following manner
Point 41 switches：
Mode one, control unit 42 obtain the frequency range of the radiofrequency signal of current transmission, according to default frequency range and feedback place
Corresponding relation, choose the feedback place 41 corresponding with the frequency range of the radiofrequency signal of current transmission, and control switching switch S to switch
The feedback place 41 of selection is connected to, so as to obtain optimal antenna radiation performance.
Mode two, control unit 42 obtain the centre frequency of the radiofrequency signal of current transmission, are determined most according to centre frequency
Good antenna length, according to default feedback place and the corresponding relation of actual antennas length, compares optimal antenna length and each
The size of the actual antennas length corresponding to place 41 is presented, is chosen with the immediate actual antennas length of optimal antenna length (i.e.
The minimum actual antennas length with the absolute value of the difference of optimal antenna length) corresponding to feedback place 41, control switching switch S
Switching is connected to the feedback place 41 of selection, so as to obtain optimal antenna radiance.
Theory and practice proves, when the length of antenna is a quarter of radio signal wavelength, the transmitting of antenna and
Conversion efficiency highest is received, therefore, it is determined that during optimal antenna length, control unit 42 can be calculated according to centre frequency first
Go out the wavelength of radiofrequency signal, then regard a quarter length of wavelength as optimal antenna length.
For example, it is assumed that the centre frequency of the radiofrequency signal of current transmission is 439MHz, the wavelength of the radiofrequency signal is calculated
=300/439=0.683 meters, then optimal antenna length=0.683/4=0.17 meters.Due to each feedback place 41 connection second
The position of back-cover 22 is different, therefore during the different feedback place 41 of switching switch S connections, with different actual antennas length, controls
Unit 42 processed is chosen and the immediate reality of optimal antenna length according to default feedback place and the corresponding relation of actual antennas length
Feedback place 41 corresponding to the antenna length of border, and control switching switch S to switch the feedback place 41 for being connected to selection.
So as to, the antenna tuning mode of full frequency band is realized using a feed (distributing point 30) and multiple feedback places 41,
Designed and without antenna cabling (pattern), directly realized with shell 20 after three-stage metal by very simple distributing point 30
Full frequency band, greatlys save antenna cost, improves the radiance of antenna, while antenna resonance can be adjusted more neatly
Frequency, greatly enhances the antijamming capability of antenna system.
Further, distributing point 30 is corresponding with the second back-cover 22, and positioned at the central region of mobile terminal.Namely
Say, when the second back-cover 22 is located at mobile terminal upper end, distributing point 30 is located at the central region of mobile terminal upper end；When second back of the body
When lid 22 is located at mobile terminal lower end, distributing point 30 is located at the central region of mobile terminal lower end.
As depicted in figs. 1 and 2, the central region of mobile terminal lower end is provided with USB (Universal
Serial Bus, USB) interface 80, distributing point 30 is positioned at the side (left side or right side) of USB interface 80.So as to effectively keep away
Exempt from number of people hand problem so that loss of the human hand to signal is relatively small when holding mobile terminal is made a phone call, and improves the logical of user
Words experience, meets antenna performance higher and higher requirement of the people to mobile terminal.
Further, antenna system also includes the first tuning device (not shown) of connection switching switch, the first tuner
Part and feedback place 41 are in parallel or in series between feedback place 41 and switching switch S.When the first tuning device is with presenting place 41 simultaneously
During connection, a tuning device in parallel of feedback place 41., can be with a feedback ground when the first tuning device is connected with feedback place 41
One the first tuning device of series connection of point 41, can also one the first tuning device of the common series connection in multiple feedback places 41.First tuning
Device can be the combination of electric capacity, inductance or electric capacity and inductance.So as to as needed in feedback place 41 and switching switch S
Between increase matching adjust antenna resonance, further improve flexibility and the precision of adjustment.
Further, antenna system also includes the passive antenna 60 and second tune device 70 being arranged on fore shell 10, the
Two tuning devices 70 connect passive antenna 60 and mainboard 50 (or daughter board) respectively, can be by the control on mainboard 50 (or daughter board)
Unit 42 to second tune device 70 is tuned control.Passive antenna 60 can be sheet metal or other conductor parts,
Second tune device 70 (being controlled by MIPI circuits) can be variable capacitance, variable inductance or variable capacitance and variable inductance
Combination, a such as variable capacitance and a variable inductance compose in parallel second tune device 70.By adjusting second tune device
The corresponding logical value of part 70, can precisely tune low frequency band, tuning control can be integrated into software code, for volume production
Repair frequency deviation, broadened bandwidth and to each frequency range optimal design.
In an alternative embodiment, the corresponding region of fore shell 10 of the 3rd back-cover 23 is also equipped with tuning circuit and distributing point
30, the 3rd back-cover 23 connects the feedback place 41 of the distributing point 30 and the tuning circuit respectively, and two tuning circuits can be multiplexed
One control unit 42.Further, the corresponding fore shell region of the 3rd back-cover can also set passive antenna 60 and second tune
Device 70, second tune device 70 connects passive antenna 60 and mainboard 50 (or daughter board) respectively, can by mainboard 50 (or son
Plate) on control unit 42 control is tuned to second tune device 70.
Using the antenna system of the embodiment of the present invention, low frequency, intermediate frequency and high frequency full frequency band are may be simultaneously operated in, according to reality
Checking, its perfection covering 0.7G-2.7G frequency range, it is possible to carry out the interval accurate tuning of multiband, disclosure satisfy that logical at present
The performance requirement of all frequency ranges in letter.
The Surface current distribution effect of mobile terminal when Fig. 3-1~3-3 show the antenna system work of the embodiment of the present invention
Fruit is schemed, and as shown in figure 3-1, when being operated in low-frequency range, surface current is mainly distributed on the gap at rear shell 20 and the edge of rear shell 20,
Overall sensitizing range is in the rear gap middle position of shell 20, so as to balance influence of the left and right head hand to antenna performance；Such as Fig. 3-2
Shown, when being operated in Mid Frequency, surface current is mainly distributed on the rear edge of shell 20 and the body middle position of rear shell 20, so as to
Influence of active balance or so head hand to antenna performance；As shown in Fig. 3-3, when being operated in high band, surface current is mainly distributed
On the right side of the rear body of shell 20, this band segment is mainly Long Term Evolution (Long Term Evolution, LTE) frequency range, typically not
Consider human hand problem.
The antenna system of the embodiment of the present invention is can be seen that from above-mentioned experiment and simulated effect, all-metal is not only met
The outward appearance demand of shell, overcomes the technological deficiency of the antenna system of shell (not opening plastic window) after existing all-metal, also brings afterwards
Following beneficial effect：
(1) due to devising multiple tunable positions of feedback place 41, directly using shell 20 after part metals as antenna
Radiating principal, therefore single laser engraving antenna cabling is not needed, cost is reduced, tuning control software code can also be integrated into,
So that volume production repairs frequency deviation, broadened bandwidth and to each frequency range optimal design；
(2) by cleverly designing, distributing point 30 is arranged to the central region of mobile terminal upper end and/or lower end, made
Left and right head hand can have been balanced by obtaining the Low Medium Frequency section of antenna system, be damaged so as to reduce hand (when holding mobile terminal is made a phone call
Loss of the human hand to signal), and the loss relative equilibrium of left hand and the right hand.
The antenna system that multiband interval provided in an embodiment of the present invention is precisely tuned, can realize that full frequency band is tuned, carry
Call/online experience of user has been risen, the maintenance cost and front end R ＆ D design cost in volume production later stage has been reduced, meets people
The demand that is improved constantly to the antenna performance of mobile terminal.
The present invention proposes a kind of mobile terminal simultaneously, and the mobile terminal includes an antenna system, the antenna system bag
The rear shell that conductor is made, the rear shell subsection setup, including the first back-cover and the second back-cover are included, first back-cover is moved with described
The battery of dynamic terminal is corresponding, and the antenna system also includes tuning circuit and the feedback being arranged on the fore shell of the mobile terminal
Electric, the tuning circuit includes control unit, switching switch and at least two feedback places being sequentially connected, described control unit
Each feedback place of the changeable connection of the control switching switch, second back-cover connects the feedback place and the feedback respectively
Electric point.Antenna system described in the present embodiment is the antenna system involved by above-described embodiment in the present invention, herein no longer
Repeat.
The mobile terminal of the embodiment of the present invention, by setting a distributing point and multiple feedback places on fore shell, and by portion
Shell is connected as the radiating principal of antenna with distributing point and feedback place after parting category, and controls the changeable connection of switching switch not
Same feedback place, realizes the full frequency band tuning of antenna.So as to both without designing antenna cabling, greatly reduce cost, carry again
The flexibility of the high radiance and antenna tuning of antenna and precision, enhance the antijamming capability of antenna system.Together
When, carry out Auto-matching to feedback place connection scheme to obtain optimal antenna radiance by control unit, without technology people
Member pre-sets and stored relevant parameter and the corresponding relation in feedback place, improves intelligent level, reduces early stage research and development and sets
The workload of meter, reduces development cost, further increases the flexibility of tuning.
Also, by the central region that distributing point is arranged to mobile terminal upper end and/or lower end so that antenna system
Low Medium Frequency section can balance left and right head hand, so as to reduce the number of people hand loss of antenna performance, and keep right-hand man to be lost
It is balanced.
It will be understood by those skilled in the art that the present invention includes being related to for performing one in operation described herein
Or multinomial equipment.These equipment can be for needed for purpose and specially design and manufacture, or general-purpose computations can also be included
Known device in machine.These equipment have the computer program being stored in it, and these computer programs are optionally activated
Or reconstruct.Such computer program, which can be stored in equipment (for example, computer) computer-readable recording medium or be stored in, to be suitable to
Storage e-command is simultaneously coupled in any kind of medium of bus respectively, and the computer-readable medium includes but is not limited to
Any kind of disk (including floppy disk, hard disk, CD, CD-ROM and magneto-optic disk), ROM (Read-Only Memory, it is read-only to deposit
Reservoir), RAM (RandomAccess Memory, random access memory), EPROM (Erasable Programmable Read-
Only Memory, Erarable Programmable Read only Memory), EEPROM (Electrically Erasable Programmable
Read-Only Memory, EEPROM), flash memory, magnetic card or light card.It is, readable
Medium includes any medium for storing or transmitting information in the form of it can read by equipment (for example, computer).
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, be included within the scope of the present invention.
Claims (10)
1. a kind of antenna system of mobile terminal, including the rear shell (20) that conductor is made, rear shell (20) subsection setup, including
First back-cover (21) and the second back-cover (22), first back-cover (21) are corresponding with the battery of the mobile terminal, its feature
It is, the antenna system also includes the tuning circuit and distributing point (30) being arranged on the fore shell of the mobile terminal (10),
The tuning circuit includes control unit (42), the switching feedbacks of switch S and at least two place (41), the control being sequentially connected
Each presents place (41) for connection changeable unit (42) the control switching switch S, and second back-cover (22) connects respectively
The feedback place (41) and the distributing point (30)；
Described control unit (42) is used for：Optimum signal side under counting current state in the connection scheme of all feedback places
Case, chooses the feedback place corresponding to the optimum signal scheme, controls the switching switch switching to be connected to the feedback of selection
Place.
2. it is according to claim 1, it is characterised in that described control unit (42) is used for：
When detecting the frequency range of radiofrequency signal of current transmission and changing, the switching switch is controlled to be sequentially connected each
Present place to transmit current radiofrequency signal, and obtain signal intensity when transmitting the radiofrequency signal, from all letters of acquisition
Highest signal strength is selected in number intensity, using the feedback place connection scheme corresponding to the highest signal strength as described optimal
Signaling plan.
3. the antenna system of mobile terminal according to claim 1, it is characterised in that the antenna system also includes connection
The first tuning device of the switching switch S, first tuning device is with the feedback place (41) in parallel or series in described
Present between place (41) and the switching switch S.
4. the antenna system of mobile terminal according to claim 3, it is characterised in that first tuning device is electric capacity
And/or inductance.
5. the antenna system of mobile terminal according to claim 1, it is characterised in that the antenna system also includes setting
In passive antenna (60) and second tune device (70) on the fore shell (10), second tune device (70) connection is described
Passive antenna (60).
6. the antenna system of mobile terminal according to claim 5, it is characterised in that the second tune device (70) is
Variable condenser and/or variometer.
7. the antenna system of the mobile terminal according to claim any one of 1-6, it is characterised in that second back-cover
(22) it is located at the upper end or lower end of the mobile terminal.
8. the antenna system of mobile terminal according to claim 7, it is characterised in that the distributing point (30) and described the
Two back-covers (22) are corresponding, and positioned at the central region of the mobile terminal.
9. the antenna system of mobile terminal according to claim 8, it is characterised in that the middle part of the mobile terminal lower end
Region is provided with USB interface (80), when second back-cover (22) is located at the lower end of the mobile terminal, the distributing point
(30) it is located at the side of the USB interface (80).
10. a kind of mobile terminal, it is characterised in that including the antenna system as described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710381100.7A CN107302141A (en) | 2017-05-25 | 2017-05-25 | Mobile terminal and its antenna system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710381100.7A CN107302141A (en) | 2017-05-25 | 2017-05-25 | Mobile terminal and its antenna system |
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| CN107302141A true CN107302141A (en) | 2017-10-27 |
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| CN201710381100.7A Pending CN107302141A (en) | 2017-05-25 | 2017-05-25 | Mobile terminal and its antenna system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581357A (en) * | 2019-09-29 | 2019-12-17 | 南昌黑鲨科技有限公司 | Mobile terminal and antenna switching method |
| CN115441882A (en) * | 2022-09-01 | 2022-12-06 | 联想(北京)有限公司 | Antenna control method and device and electronic equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450669A (en) * | 2016-12-15 | 2017-02-22 | 奇酷互联网络科技（深圳）有限公司 | Mobile terminal and antenna assembly thereof |
| CN107302136A (en) * | 2017-05-24 | 2017-10-27 | 奇酷互联网络科技（深圳）有限公司 | Mobile terminal and its antenna system |
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2017
- 2017-05-25 CN CN201710381100.7A patent/CN107302141A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450669A (en) * | 2016-12-15 | 2017-02-22 | 奇酷互联网络科技（深圳）有限公司 | Mobile terminal and antenna assembly thereof |
| CN107302136A (en) * | 2017-05-24 | 2017-10-27 | 奇酷互联网络科技（深圳）有限公司 | Mobile terminal and its antenna system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581357A (en) * | 2019-09-29 | 2019-12-17 | 南昌黑鲨科技有限公司 | Mobile terminal and antenna switching method |
| CN110581357B (en) * | 2019-09-29 | 2024-06-07 | 南昌黑鲨科技有限公司 | Mobile terminal and antenna switching method |
| CN115441882A (en) * | 2022-09-01 | 2022-12-06 | 联想(北京)有限公司 | Antenna control method and device and electronic equipment |
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Application publication date: 20171027 |
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