CN108880701A - Adjust the method, device and mobile terminal of antenna radiation performance - Google Patents
Adjust the method, device and mobile terminal of antenna radiation performance Download PDFInfo
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- CN108880701A CN108880701A CN201810460762.8A CN201810460762A CN108880701A CN 108880701 A CN108880701 A CN 108880701A CN 201810460762 A CN201810460762 A CN 201810460762A CN 108880701 A CN108880701 A CN 108880701A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/102—Power radiated at antenna
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/103—Reflected power, e.g. return loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
- H04B17/12—Monitoring; Testing of transmitters for calibration of transmit antennas, e.g. of the amplitude or phase
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The present invention provides a kind of method, device and mobile terminal for adjusting antenna radiation performance, are related to mobile communication technology field, and this method is applied to mobile terminal, and mobile terminal includes mutiple antennas, and each antenna is each configured with pole plate, and the above method includes：Detect the corresponding capacitor of each pole plate；Judge to whether there is in the antenna of mobile terminal human body according to the capacitor detected close to antenna；If it does, selecting transmitting antenna from the antenna in addition to human body is close to antenna；Signal is sent by the transmitting antenna.The method, device and mobile terminal of adjustment antenna radiation performance provided by the invention, it can judge whether there be mode of the human body close to antenna in the antenna of mobile terminal, and then transmitting antenna is selected from the antenna in addition to human body is close to antenna to send signal, avoid human body close to the excessive influence generated to human body of the radiant power of antenna, simultaneously, it also contributes to being promoted the communication performance of mobile terminal, and then improves the Experience Degree of user.
Description
Technical field
The present invention relates to mobile communication technology fields, more particularly, to a kind of method, apparatus for adjusting antenna radiation performance
And mobile terminal.
Background technique
With the fast development of development of Mobile Internet technology and intelligent terminal technology, mobile terminal is more more and more universal, also, with
Mobile terminal function it is stronger and stronger, transmission power is also increasingly stronger, causes to produce radiation effect to human body.
The radiation effect that mobile terminal generates usually uses SAR (Specific Absorption Rate, electro-magnetic wave absorption ratio
Value or specific absorption rate) value measures, and by taking mobile phone radiation as an example, SAR value refers to radiating by the ratio of the soft tissue absorbed on head,
SAR value is lower, and the amount that radiation is absorbed by brain is fewer, and therefore, SAR value can indicate mobile terminal can will cause how many to human body
It influences, numerical value is bigger, indicates that the influence to human body is bigger；It is on the contrary then influence smaller.
In general, mobile terminal is in use, with the variation of network environment and use environment, SAR value is also at
The process of dynamic change, therefore, it may appear that the case where SAR value is excessive, generates adverse effect to human body reduces user and use shifting
The Experience Degree of dynamic terminal.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of method, apparatus for adjusting antenna radiation performance and movement are whole
End, to alleviate SAR value excessive the technical issues of generating adverse effect to human body.
In a first aspect, this method is applied to move the embodiment of the invention provides a kind of method for adjusting antenna radiation performance
Dynamic terminal, mobile terminal includes mutiple antennas, and each antenna is each configured with pole plate, and the above method includes：Detect each pole plate
Corresponding capacitor；Judge to whether there is in the antenna of mobile terminal human body according to the capacitor detected close to antenna；If it does,
Transmitting antenna is selected from the antenna in addition to human body is close to antenna；Signal is sent by the transmitting antenna.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein on
The step of stating the capacitor for detecting each pole plate, including：The corresponding capacitor of each pole plate is detected by capacitance detecting device；And/or
The voltage that pole plate is acquired by the ADC that each pole plate connects calculates the corresponding capacitor of each pole plate according to voltage.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein on
The step of whether there is human body in the antenna for judge mobile terminal according to the capacitor that detects close to antenna is stated, including：Judgement inspection
Within the set range whether the capacitor measured；If so, determining that the corresponding antenna of capacitor within the set range is close for human body
Antenna.
With reference to first aspect, the embodiment of the invention provides the third possible embodiments of first aspect, wherein on
The step of transmitting antenna is selected from the antenna in addition to human body is close to antenna is stated, including：It checks in addition to human body is close to antenna
Remaining antenna number；Transmitting antenna is chosen according to the number of remaining antenna.
The third possible embodiment with reference to first aspect, the embodiment of the invention provides the 4th kind of first aspect
Possible embodiment, wherein above-mentioned the step of transmitting antenna is chosen according to the number of remaining antenna, including：If remaining day
The number of line is multiple；Obtain the SNR of remaining antenna；The highest remaining antenna of SNR is determined as transmitting antenna.
The third possible embodiment with reference to first aspect, the embodiment of the invention provides the 5th kind of first aspect
Possible embodiment, wherein above-mentioned the step of transmitting antenna is chosen according to the number of remaining antenna, including：If remaining day
The number of line is zero；Determine antenna at a distance from human body according to the corresponding capacitor of each antenna of mobile terminal；Obtain distance
Greater than the SNR of the antenna of pre-determined distance threshold value；The highest antenna of SNR is determined as transmitting antenna.
The 5th kind of possible embodiment with reference to first aspect, the embodiment of the invention provides the 6th kind of first aspect
Possible embodiment, wherein the above method further includes：When the distance of each antenna is respectively less than pre-determined distance threshold value, choose
Apart from maximum antenna, the radiant power of current antenna is reduced according to preset SAR standard；The antenna for reducing radiant power is true
It is set to transmitting antenna.
The 5th with reference to first aspect or the 6th kind of possible embodiment, the embodiment of the invention provides first aspects
7th kind of possible embodiment, wherein the above method further includes：Calculate current transmitting antenna SNR and previous transmitting day
The difference of the SNR of line；If difference is greater than preset SNR threshold value, the transmitting antenna for restoring setting mobile terminal is previous hair
Penetrate antenna；The radiant power of previous transmitting antenna is reduced according to preset SAR standard.
With reference to first aspect, the embodiment of the invention provides the 8th kind of possible embodiments of first aspect, wherein on
The method of stating further includes：Current transmitting antenna is monitored at set time intervals at a distance from human body；According to the distance tune of monitoring
The radiant power of whole current transmitting antenna；The step of above-mentioned each pole plate of detection corresponding capacitor includes：When current transmitting antenna
When the duration persistently used reaches setting duration, the corresponding capacitor of each pole plate is detected.
Second aspect, the embodiment of the present invention also provide a kind of device for adjusting antenna radiation performance, which is set to shifting
Dynamic terminal, mobile terminal includes mutiple antennas, and each antenna is each configured with pole plate, which includes：Detection module, for examining
Survey the corresponding capacitor of each pole plate；Judgment module, for judging whether deposit in the antenna of mobile terminal according to the capacitor detected
In human body close to antenna；Selecting module, when judging that there are human bodies close to antenna for judgment module, from except human body is close to antenna
Except antenna in select transmitting antenna；Sending module, for sending signal by transmitting antenna.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein on
Judgment module is stated to be used for：Whether within the set range to judge the capacitor detected；If so, determining capacitor within the set range
Corresponding antenna is human body close to antenna.
The third aspect, the embodiment of the invention provides a kind of mobile terminal, which has above-mentioned second aspect
The device of the adjustment antenna radiation performance.
The embodiment of the present invention brings following beneficial effect：
The method, device and mobile terminal of adjustment antenna radiation performance provided in an embodiment of the present invention, are moved by detection
The corresponding capacitor of pole plate of each antenna of terminal, and then judge whether have human body close to the side of antenna in the antenna of mobile terminal
Formula can select transmitting antenna from the antenna in addition to human body is close to antenna to send signal, avoid human body close to antenna
The excessive influence generated to human body of radiant power, also, it helps promoting the communication performance of mobile terminal, and then improves use
The Experience Degree at family.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those skilled in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of antenna structure view of mobile terminal provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of method for adjusting antenna radiation performance provided in an embodiment of the present invention；
Fig. 3 is the flow chart of the method for another adjustment antenna radiation performance provided in an embodiment of the present invention；
Fig. 4 is the flow chart of the method for another adjustment antenna radiation performance provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of device for adjusting antenna radiation performance provided in an embodiment of the present invention.
Fig. 6 is a kind of schematic diagram of mobile terminal provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those skilled in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Currently, the radiation effect that mobile terminal generates usually is measured with SAR value, therefore, the side for reducing SAR value is mostly used
Formula, realizing reduces the radiation effect that mobile terminal generates human body.
In the prior art, usually electromagnetic wave harmful radiation direction is prejudged, in the direction in the mobile terminal design stage
Upper increase special material absorbs radiation, or changes the mode of antenna tuning state in this direction to reduce the spoke of mobile terminal
Projection is rung, and still, this mode increases the device cost of mobile terminal, while becoming increasingly complex, more in mobile terminal structure
Come under more frivolous trend, increases structure design difficulty.Also, it is relatively simple to adjust the change of antenna tuning state, it is difficult to full
The complicated living scene of foot, and time and the cost of antenna adjustment are increased, guarantee while being difficult to take into account satisfaction reduction SAR value
The communication performance of mobile terminal.
In view of SAR value generally just can be exceeded in the case where radio frequency is in high-power emission state, accordingly it is also possible to take limitation
The mode of the maximum transmission power of radio frequency, to reduce mobile terminal to the radiation effect of human body.In the prior art, usually pass through inspection
The mode for surveying the distance between human body and mobile terminal, determines the pad value of radio-frequency emission power, to realize radio-frequency emission power
Attenuation processing, but this mode has used excessive sensor to detect human body at a distance from mobile terminal, also certain
The cost of hardware is increased in degree, at the same time, on the mobile terminal of the current confined space, also brings device stack
Pressure.
Based on this, the embodiment of the invention provides a kind of method, device and mobile terminal for adjusting antenna radiation performance, can
To be adjusted to antenna radiation performance, to reduce mobile terminal radiation effect caused by human body.
For convenient for understanding the present embodiment, first to a kind of adjustment aerial radiation disclosed in the embodiment of the present invention
The method of energy describes in detail.
The method of adjustment antenna radiation performance provided in an embodiment of the present invention can be applied to mobile terminal, implement
When, mobile terminal includes mutiple antennas, and each antenna is each configured with pole plate, by taking mobile terminal includes four antennas as an example, Fig. 1
A kind of antenna structure view of mobile terminal is shown, illustrate only the antenna of mobile terminal for ease of description, in Fig. 1
Dependency structure, including four antenna ANT0~ANT3, four pole plates, antenna change-over switch and CPU (Central
Processing Unit, central processing unit), wherein CPU draws four tunnels and has ADC (Analog-to-Digital
Converter, A/D converter) function I/O mouth, guided near each antenna respectively, the setting of each pole plate is attached in antenna
Closely, in actual use, each pole plate can be realized by the copper foil line with certain area width, and be designed to close to mobile whole
The surface at end, as the pole plate of mobile terminal side, human body can be used as another pole plate, form electricity with the pole plate of mobile terminal side
Hold, when human body close to when the variation of inductance capacitance capacity may be implemented.
Based on above-mentioned mobile terminal, Fig. 2 shows a kind of flow chart of method for adjusting antenna radiation performance, including it is following
Step：
Step S202 detects the corresponding capacitor of each pole plate；
In general, mobile terminal can detect the corresponding capacitor of each pole plate by capacitance detecting device；And/or by every
The voltage of the ADC acquisition pole plate of a pole plate connection, calculates the corresponding capacitor of each pole plate further according to voltage.Wherein, for the ease of
Illustrate, illustrate only the voltage for acquiring pole plate by ADC in Fig. 1, calculate the corresponding capacitor of each pole plate further according to voltage
Embodiment, which can be by the device of existing mobile terminal, by detection voltage, then calculates the mode reality of capacitor
The now calculating process of the corresponding capacitor of each pole plate avoids and increases capacitance detecting device.
When specific implementation, in the antenna structure view of mobile terminal shown in FIG. 1, each pole plate can pass through I/O
It mouthful is connect with ADC, and then the voltage acquisition process of each pole plate of realization, when specific implementation, the above-mentioned each pole plate of detection is corresponding
The process of capacitor can be configured according to actual use situation, and it is not limited by the embodiments of the present invention.
Step S204 judges to whether there is in the antenna of mobile terminal according to the capacitor detected human body close to antenna；
Wherein, human body described in the embodiment of the present invention close to antenna refer to when human body close to when, the capacitor of pole plate occurs
The antenna of variation, pole plate and humanoid at the two poles of the earth, therefore when human body close to when, the capacitor on pole plate can change, according to capacitor
With the corresponding relationship of antenna, human body can be determined close to antenna.
For example, according to formula C=ε S/4 π kd, wherein C is capacitor, and ε is dielectric constant, S be capacitor plate just
To area, d is the distance of capacitor plate, and k is then electrostatic force constant, when human body close to when, d can change, and capacitor can also be sent out
The difference of changing, the dielectric constant of usual human body and other objects, when human body close to when, the fluctuation situation of capacitor, and
Caused voltage fluctuation variation is also different, therefore, human body can be judged whether there is according to capacitance variations close to antenna；
It is again capacitor according to formula C=Q/U, C, unit farad, Q is electricity, and unit coulomb, U is voltage, and unit is volt
Spy, so movement equally can also also may determine that calculate capacitor according to voltage change caused when detecting capacitance variations
It whether there is human body in the antenna of terminal close to antenna.Wherein, the variation of voltage can be captured with ADC.
Step S206, if it does, selecting transmitting antenna from the antenna in addition to human body is close to antenna；
Step S208 sends signal by the transmitting antenna.
The method of adjustment antenna radiation performance provided in an embodiment of the present invention, by the pole for detecting each antenna of mobile terminal
The capacitor of plate, and then judge whether there be mode of the human body close to antenna in the antenna of mobile terminal, can be from except human body be close to day
It selects transmitting antenna to send signal in antenna except line, human body is avoided to generate close to the radiant power of antenna is excessive to human body
Influence and then improve the Experience Degree of user also, it helps promoting the communication performance of mobile terminal.
In actual use, the variation of network environment and mobile terminal use environment can all cause the corresponding capacitor of pole plate
It changes, for example, can also be mobile terminal except human body close the case where causing capacitor to change close to metal or build
The corresponding capacitor of the caused pole plate of situations such as building object changes.Permittivity ε of the different situations under is different, leads to capacitor
The fluctuation range of amount and the variation range of voltage are all different.
Therefore, when antenna of the human body close to mobile terminal, capacitor can fluctuate in a specific range, so as to basis
Whether the variation of capacitor detects has human body close, and then judges in the antenna of mobile terminal with the presence or absence of human body close to day
Line, and calculate distance of the human body close to mobile terminal.Based on this, Fig. 3 shows another adjustment antenna radiation performance
The flow chart of method judges whether there is human body close to antenna by the variation of the corresponding capacitor of pole plate, includes the following steps：
Step S302 detects the capacitor of each pole plate；
Within the set range whether step S304 judge the capacitor detected；If so, step S306 is executed, if not,
Return step S302；
When specific implementation, capacitance variations mark sheet can be stored in advance in mobile terminal, can be in the capacitance variations mark sheet
A variety of situations are stored under, the fluctuation range of the corresponding capacitor of pole plate can also include further different situations close to lower electricity
The wave characteristic of appearance, more accurately to judge whether there is human body close to antenna.
Step S306 determines that the corresponding antenna of capacitor within the set range is human body close to antenna；
Wherein, the setting range be pre-stored human body close to the antenna of mobile terminal when, the corresponding capacitor of pole plate
Variation range.When the capacitor detected is in the setting range, it is close the corresponding antenna of the capacitor can be determined as human body
Antenna.
It, can be according to the process choosing transmitting antenna of step S308~S310 after determining human body close to antenna.
Step S308 checks the number of the remaining antenna in addition to human body is close to antenna；
In general, when mobile terminal includes mutiple antennas, due to the finite volume of mobile terminal, when human body is close to mobile whole
When end, the corresponding capacitor of multiple pole plates be can detecte out by step S302 and changed, and then determines that multiple human bodies are close
Antenna emits at this time, it may be necessary to check the number of the remaining antenna in addition to human body is close to antenna to choose according to step S310
Antenna.
Step S310 chooses transmitting antenna according to the number of remaining antenna；
Specifically, if the number of above-mentioned residue antenna is multiple, the process for choosing transmitting antenna includes：
(1) SNR of remaining antenna is obtained；Wherein, SNR (SIGNAL-NOISE RATIO, signal-to-noise ratio) is to judge that antenna connects
The performance indicator of the collection of letters number indicates that the performance of current mobile terminal reception signal is more superior in general, SNR is higher.
(2) the highest remaining antenna of SNR is determined as transmitting antenna.
In actual use, it may appear that the case where all antennas of mobile terminal are human body close to antenna, that is, remaining day
The number of line is zero；At this point, the process for choosing transmitting antenna includes：
(1) determine antenna at a distance from human body according to the corresponding capacitor of each antenna of mobile terminal；
Wherein it is determined that process of the antenna at a distance from human body, can realize, wherein C is every according to formula C=ε S/4 π kd
The corresponding capacitor of a antenna, ε are dielectric constants, and S is the positive area of capacitor plate, and k is electrostatic force constant, and d is capacitor plate
Distance, i.e., above-mentioned antenna is at a distance from human body.When specific implementation, can also be captured by ADC can after voltage changes
Specifically voltage can be captured with the distance for calculating human body to mobile terminal by ADC, be electricity according to formula C=Q/U, C
Hold, unit farad, Q is electricity, and unit coulomb, U is voltage, and unit is volt, capacitor C is calculated, further according to formula C=ε S/4
π kd calculates antenna and human body distance d.Specific calculating process can realize with reference to related data, the embodiment of the present invention to this not
It is limited.
(2) SNR that distance is greater than the antenna of pre-determined distance threshold value is obtained；
(3) the highest antenna of SNR is determined as transmitting antenna.
Wherein, minimum safe distance of the human body apart from antenna when above-mentioned pre-determined distance threshold value is the SAR that precalculates exceeded.
Therefore, when above-mentioned distance is greater than pre-determined distance threshold value, above-mentioned human body will not generate shadow to human body close to the radiance of antenna
It rings, at this point it is possible to select SNR performance preferably antenna as transmitting antenna.
When human body and mobile terminal are close enough, it may appear that each antenna be respectively less than at a distance from human body it is above-mentioned it is default away from
The case where from threshold value, at this point it is possible to take the mode for reducing the radiant power of antenna, detailed process may include：
(1) when each antenna is respectively less than pre-determined distance threshold value at a distance from human body, the maximum antenna of selected distance, according to
Preset SAR standard reduces the radiant power of current antenna；
(2) antenna for reducing radiant power is determined as transmitting antenna.
When specific implementation, SAR standard specified in country variant standard is different, and therefore, the limit value of preset SAR standard is wanted
Also difference is sought, may include the corresponding relationship of above-mentioned distance with the radiant power pad value of antenna in usual SAR standard, with
And SAR under current radiation power etc., specific SAR standard can be configured with reference to related data, and be saved to mobile whole
The designated position at end, in order to which CPU is called.
In actual use, in order to guarantee that transmitting antenna can guarantee the normal communication function of mobile terminal, when by upper
After the process of stating determines transmitting antenna, the difference of the SNR of current transmitting antenna and the SNR of previous transmitting antenna can also be calculated；
If the difference is greater than preset SNR threshold value, the transmitting antenna for restoring setting mobile terminal is previous transmitting antenna；According to pre-
If SAR standard reduce the radiant power of previous transmitting antenna.
For example, above-mentioned preset SNR threshold value can be 3bB, if the SNR of current transmitting antenna is than previous transmitting antenna
SNR difference 3dB or more, at this point, mobile terminal can restore that transmitting antenna is arranged to be previous transmitting antenna；Then according to pre-
If SAR standard reduce the radiant power of previous transmitting antenna so that generating shadow to human body in the radiant power for reducing antenna
While sound, guarantee the normal communication function of mobile terminal.
Specifically, the process of above-mentioned selection transmitting antenna further includes that mobile terminal will be current by antenna change-over switch
Transmitting antenna switches to the process of the transmitting antenna of selection, and the selection process of transmitting antenna is completed, and then executes step S312.
Step S312 sends signal by the transmitting antenna.
In order to avoid the antenna frequent switching of mobile terminal causes communication function bad, and consume asking for excessive electricity
Topic, when by the above process choose transmitting antenna after, mobile terminal can continue to monitor within a certain period of time current transmitting antenna with
The distance of human body, and according to the radiant power for specifically adjusting current transmitting antenna, to avoid the frequent switching of antenna, therefore,
On the basis of Fig. 2 or Fig. 3, as shown in figure 4, the embodiment of the invention also provides the methods of another adjustment antenna radiation performance
Flow chart includes the following steps：
Wherein, step S402~step S408 process is consistent with step S202~process of step S208, specifically can be with
With reference to correlation step shown in Fig. 2, further, the selection course of transmitting antenna can also refer to correlation step shown in Fig. 3,
This is repeated no more again.
Step S410 monitors current transmitting antenna at a distance from human body at set time intervals；
Step S412 adjusts the radiant power of current transmitting antenna according to the distance of monitoring；
In actual use, after mobile terminal chooses transmitting antenna again, within a certain period of time, hair will not continually be switched
It penetrates antenna, but reduces influence of the aerial radiation to human body by adjusting the mode of the radiant power of current antenna, for example, on
Stating time interval can be 0.1s, at this point, mobile terminal can obtain current transmitting antenna at a distance from human body every 0.1s, when
When distance is less than pre-determined distance threshold value, the radiant power of current antenna can be reduced according to preset SAR standard, without being to continue with
Reselect transmitting antenna；When distance is greater than pre-determined distance threshold value, the radiant power of current transmitting antenna can be kept, when working as
When the duration that preceding transmitting antenna persistently uses reaches setting duration, such as 10min, then the corresponding capacitor of each pole plate is detected again.
Specifically, it can be executed according to step S414~step S416 process.
Step S414, judges whether the duration that current transmitting antenna persistently uses reaches setting duration；If so, returning to step
Rapid S402 detects the corresponding capacitor of each pole plate again；If not, executing step S416.
Step S416 continues through the transmitting antenna and sends signal.
To sum up, the method for adjustment antenna radiation performance provided in an embodiment of the present invention, selects the process of transmitting antenna, can
To be carried out according to following decision condition：
(1) transmitting antenna is selected from the antenna in addition to human body is close to antenna；
(2) number for checking the remaining antenna in addition to human body is close to antenna, if there is multiple transmitting antennas meet condition
(1), the remaining antenna of SNR highest (antenna of best performance) is determined as transmitting antenna；
(3) if meeting (1) without antenna, selection is farthest apart from human body, and SNR performance preferably antenna is as transmitting day
Line；
(4) after meeting condition (3), human body is calculated close to the distance of terminal, carries out the reduction radiant power for meeting SAR standard
Measure.
(5) if the transmitting antenna after current switching is in the condition that meets (1), (2), but current SNR value is than previous hair
Preset SNR threshold value (e.g., 3dB) of antenna difference or more is penetrated, the transmitting antenna for restoring setting mobile terminal is previous transmitting day
Line；The radiant power of previous transmitting antenna is reduced according to preset SAR standard, guarantees antenna radiation performance.
When specific implementation, to meet above-mentioned decision condition, it can be previously stored in the designated memory of mobile terminal
Following information：(1) the supported transmitting antenna number of mobile terminal；(2) human body that will lead to SAR index exceeding standard is obtained apart from antenna
Safe distance m (minimum safe distance of the human body apart from antenna when SAR is exceeded)；(3) time for the setting recorded in step S410
Preset various parameters and the information such as the setting duration that interval and step S414 are recorded；When acquisition for mobile terminal to above-mentioned letter
After breath, the method that can execute adjustment antenna radiation performance by CPU achievees the purpose that avoid human body radiation.
The method of adjustment antenna radiation performance provided in an embodiment of the present invention, by the pole for detecting each antenna of mobile terminal
The corresponding capacitor of plate, and then judge whether there be mode of the human body close to antenna in the antenna of mobile terminal, it can be connect from except human body
It selects transmitting antenna to send signal in antenna except nearly antenna, avoids human body excessive to human body close to the radiant power of antenna
The influence of generation, it is also possible to which the antenna for choosing optimal performance is communicated as transmitting antenna, it helps promote movement
The communication performance of terminal, in the case where or else increasing any cost, also may be implemented the characteristics of not only combining multi-antenna terminal
The dynamic of mobile terminal antenna performance adjusts, and reduces influence of the aerial radiation to human body, and then improve the Experience Degree of user.
On the basis of the method for above-mentioned adjustment antenna radiation performance, the embodiment of the invention also provides a kind of adjustment antennas
The device of radiance, the device are set to mobile terminal, and mobile terminal includes mutiple antennas, and each antenna is each configured with pole
Plate, a kind of structural schematic diagram of the device of adjustment antenna radiation performance as shown in Figure 5, device include：
Detection module 50, for detecting the corresponding capacitor of each pole plate；
Judgment module 52, the capacitor detected for basis judge to whether there is in the antenna of mobile terminal human body close to day
Line；
Selecting module 54, when judging that there are human bodies close to antenna for judgment module, from addition to human body is close to antenna
Antenna in select transmitting antenna；
Sending module 56, for sending signal by transmitting antenna.
Specifically, judgment module 52 is used for：Whether within the set range to judge the capacitor detected；If so, determining
The corresponding antenna of capacitor in setting range is human body close to antenna.
The device of adjustment antenna radiation performance provided in an embodiment of the present invention, with adjustment antenna spoke provided by the above embodiment
The method technical characteristic having the same for penetrating performance reaches identical technical effect so also can solve identical technical problem.
The embodiment of the invention also provides a kind of mobile terminal, which has above-mentioned adjustment antenna radiation performance
Device.
A kind of schematic diagram of mobile terminal as shown in FIG. 6, including radio circuit (radio frequency Radio Frequency, RF electricity
Road) 610, memory 620, input unit 630, display unit 640, sensor 650, voicefrequency circuit 660, Wireless Fidelity
The components such as (wireless fidelity, WiFi) module 670, processor 680 and power supply 690.
For ease of description, only parts related to embodiments of the present invention are shown by Fig. 6.It should be appreciated that shown in Fig. 6
The structure of mobile terminal does not constitute the restriction to mobile terminal, may include than illustrating more or fewer components or group
Close certain components or different component layouts.
It is specifically introduced below with reference to each component parts of the Fig. 6 to mobile terminal：
RF circuit 610 for receive and send messages or communication process in, signal sends and receivees, particularly, will be under base station
After row information receives, handled to processor 680；Upstream data can also be sent to base station.In general, RF circuit includes but unlimited
In antenna, at least one amplifier, transceiver, coupler, low-noise amplifier (Low Noise Amplifier, LNA),
Duplexer etc..
Memory 620 can be used for storing software program and module, such as the adjustment aerial radiation in the embodiment of the present invention
Corresponding program instruction/the module of method and mobile terminal of energy, processor 680 are stored in the soft of memory 620 by operation
Part program and module provide thereby executing the various function application and data processing of mobile terminal, such as embodiment of the present invention
Adjustment antenna radiation performance method.Memory 620 can mainly include storing program area and storage data area, wherein storage
It program area can application program needed for storage program area, at least one function (such as sound-playing function, image player function
Deng) etc.；Storage data area, which can be stored, uses created data (such as audio data, phone directory etc.) according to mobile terminal
Deng.In addition, memory 620 may include high-speed random access memory, it can also include nonvolatile memory, for example, at least
One disk memory, flush memory device or other volatile solid-state parts.
Input unit 630 can be used for receiving the number or character information of input, and generates and set with the user of mobile terminal
It sets and the related key signals of function control inputs.Specifically, input unit 630 may include touch panel 631, such as touch screen,
And other input equipments 632, other input equipments 632 can include but is not limited to physical keyboard, function key (such as volume control
Key processed, switch key etc.), trace ball, mouse, one of operating stick etc. or a variety of.
Display unit 640 can be used for showing information input by user or the information and mobile terminal that are supplied to user
Various menus.Display unit 640 may include display panel 641, optionally, can use liquid crystal display (Liquid
Crystal Display, LCD), the forms such as Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED)
To configure display panel 641.Further, touch panel 631 can cover display panel 641, when touch panel 631 detects
After touch operation on or near it, processor 680 is sent to determine the type of touch event, is followed by subsequent processing 680 basis of device
The type of touch event processes.Although touch panel 631 and display panel 641 are as two independent components in Fig. 6
Realize the input and input function of mobile terminal, but in some embodiments it is possible to by touch panel 631 and display panel
641 is integrated and that realizes mobile terminal output and input function.
Mobile terminal may also include at least one sensor 650, such as optical sensor, motion sensor and other sensings
Device.
Voicefrequency circuit 660, loudspeaker 661, microphone 662 can provide the audio interface between user and mobile terminal.
WiFi belongs to short range wireless transmission technology, and mobile terminal can help user to receive and dispatch electricity by WiFi module 670
Sub- mail, browsing webpage and access streaming video etc., it provides wireless broadband internet access for user.Although Fig. 6 shows
Go out WiFi module 670, but it is understood that, and it is not belonging to must be configured into for mobile terminal, it completely can be according to need
It to omit within the scope of not changing the essence of the invention.
Processor 680 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 620, and calls and is stored in storage
Data in device 620 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.It can
Choosing, processor 680 may include one or more processing units；Preferably, processor 680 can integrate application processor and modulation
Demodulation processor, wherein the main processing operation system of application processor, user interface and application program etc., modulation /demodulation processing
Device mainly handles wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 680.
Mobile terminal further includes the power supply 690 (such as battery) powered to all parts, it is preferred that power supply can pass through electricity
Management system and processor 680 are logically contiguous, to realize management charging, electric discharge and power consumption by power-supply management system
The functions such as management.
It is appreciated that structure shown in fig. 6 is only to illustrate, mobile terminal may also include than shown in Fig. 6 more or more
Few component, or with the configuration different from shown in Fig. 6.Each component shown in Fig. 6 can use hardware, software or its group
It closes and realizes.
The computer program of the method, device and mobile terminal of adjustment antenna radiation performance provided by the embodiment of the present invention
Product, the computer readable storage medium including storing program code, the instruction that said program code includes can be used for executing
Previous methods method as described in the examples, specific implementation can be found in embodiment of the method, and details are not described herein.
It is apparent to those skilled in the art that for convenience and simplicity of description, the movement of foregoing description
The specific work process of terminal and device, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.To those skilled in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
Finally it should be noted that：Above embodiments, only a specific embodiment of the invention, to illustrate skill of the invention
Art scheme, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to the present invention into
Go detailed description, it should be understood by those skilled in the art that：Anyone skilled in the art takes off in the present invention
In the technical scope of dew, it can still modify to technical solution documented by previous embodiment or can readily occur in change
Change or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make relevant art
Scheme essence be detached from technical solution of the embodiment of the present invention spirit and scope, should all cover protection scope of the present invention it
It is interior.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (12)
1. a kind of method for adjusting antenna radiation performance, which is characterized in that the method is applied to mobile terminal, described mobile whole
End includes mutiple antennas, and each antenna is each configured with pole plate, the method includes：
Detect the corresponding capacitor of each pole plate；
Judge to whether there is in the antenna of the mobile terminal human body according to the capacitor detected close to antenna；
If it does, selecting transmitting antenna from the antenna in addition to the human body is close to antenna；
Signal is sent by the transmitting antenna.
2. the method according to claim 1, wherein the step of each pole plate of detection corresponding capacitor
Including：
The corresponding capacitor of each pole plate is detected by capacitance detecting device；And/or
The voltage that the pole plate is acquired by the ADC of each pole plate connection, calculates each pole plate according to the voltage
Corresponding capacitor.
3. the method according to claim 1, wherein the capacitor that the basis detects judges the movement
In the antenna of terminal with the presence or absence of human body close to antenna the step of, including：
Whether within the set range to judge the capacitor detected；
If so, determining that the corresponding antenna of capacitor in the setting range is human body close to antenna.
4. the method according to claim 1, wherein in the antenna from addition to the human body is close to antenna
The step of selecting transmitting antenna, including：
Check the number of the remaining antenna in addition to the human body is close to antenna；
Transmitting antenna is chosen according to the number of the remaining antenna.
5. according to the method described in claim 4, it is characterized in that, the number according to the remaining antenna chooses transmitting day
The step of line, including：
If the number of the residue antenna is multiple；
Obtain the SNR of the remaining antenna；
The highest remaining antenna of SNR is determined as transmitting antenna.
6. according to the method described in claim 4, it is characterized in that, the number according to the remaining antenna chooses transmitting day
The step of line, including：
If the number of the residue antenna is zero；
Determine the antenna at a distance from the human body according to the corresponding capacitor of each of the mobile terminal antenna；
Obtain SNR of the distance greater than the antenna of pre-determined distance threshold value；
The highest antenna of SNR is determined as transmitting antenna.
7. according to the method described in claim 6, it is characterized in that, the method also includes：
When the distance of each antenna is respectively less than the pre-determined distance threshold value, choose it is described apart from maximum antenna, according to
Preset SAR standard reduces the radiant power of the current antenna；
The antenna for reducing radiant power is determined as transmitting antenna.
8. method according to claim 5 or 6, which is characterized in that the method also includes：
Calculate the difference of the SNR of presently described transmitting antenna and the SNR of previous transmitting antenna；
If the difference is greater than preset SNR threshold value, the transmitting antenna for restoring that the mobile terminal is arranged is described previous
Transmitting antenna；
The radiant power of the previous transmitting antenna is reduced according to preset SAR standard.
9. the method according to claim 1, wherein the method also includes：
Current transmitting antenna is monitored at set time intervals at a distance from human body；
The radiant power of the current transmitting antenna is adjusted according to the distance of monitoring；
The step of each pole plate of detection corresponding capacitor includes：
When the duration that current transmitting antenna persistently uses reaches setting duration, the corresponding capacitor of each pole plate is detected.
10. a kind of device for adjusting antenna radiation performance, which is characterized in that described device is set to mobile terminal, the movement
Terminal includes mutiple antennas, and each antenna is each configured with pole plate, and described device includes：
Detection module, for detecting the corresponding capacitor of each pole plate；
Judgment module, it is close with the presence or absence of human body in the antenna of the mobile terminal for being judged according to the capacitor detected
Antenna；
Selecting module, when judging that there are human bodies close to antenna for the judgment module, from except the human body close to antenna it
Transmitting antenna is selected in outer antenna；
Sending module, for sending signal by the transmitting antenna.
11. device according to claim 10, which is characterized in that the judgment module is used for：
Judge the capacitor whether within the set range；
If so, determining that the corresponding antenna of capacitor in the setting range is human body close to antenna.
12. a kind of mobile terminal, which is characterized in that the mobile terminal configuration have the right to require 10 or 11 described in device.
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| CN201810460762.8A CN108880701A (en) | 2018-05-14 | 2018-05-14 | Adjust the method, device and mobile terminal of antenna radiation performance |
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|---|---|---|---|
| CN201810460762.8A CN108880701A (en) | 2018-05-14 | 2018-05-14 | Adjust the method, device and mobile terminal of antenna radiation performance |
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| CN201810460762.8A Pending CN108880701A (en) | 2018-05-14 | 2018-05-14 | Adjust the method, device and mobile terminal of antenna radiation performance |
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| CN114513572A (en) * | 2020-11-16 | 2022-05-17 | 深圳市万普拉斯科技有限公司 | Method and device for switching antenna of terminal equipment and terminal |
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Application publication date: 20181123 |