CN113852387B - Antenna power adjusting method and device and electronic equipment - Google Patents

Antenna power adjusting method and device and electronic equipment Download PDF

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Publication number
CN113852387B
CN113852387B CN202111079417.8A CN202111079417A CN113852387B CN 113852387 B CN113852387 B CN 113852387B CN 202111079417 A CN202111079417 A CN 202111079417A CN 113852387 B CN113852387 B CN 113852387B
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antenna
sub
impedance value
interval
impedance
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CN113852387A (en
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文园
王珅
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3833—Hand-held transceivers
    • H04B1/3838—Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The application discloses an antenna power adjusting method, an antenna power adjusting device and electronic equipment, relates to the field of communication, and aims to solve the problem that the cost is high in a mode of adjusting power based on SAR sensors in the prior art. The method for adjusting the antenna power comprises the following steps: acquiring an impedance value of the antenna; reducing the transmitting power of the antenna under the condition that the impedance value of the antenna is in a preset impedance interval; the preset impedance interval is an impedance value interval predetermined based on a current intensity area of the antenna.

Description

Antenna power adjusting method and device and electronic equipment
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for adjusting antenna power, and an electronic device.
Background
With the development of communication technology, attention is paid to an index of electromagnetic wave absorption rate (Specific Absorption Rate, SAR).
In order to ensure that the SAR indicator meets the requirements of regulatory authorities, mobile phone manufacturers generally use SAR sensors to detect whether a human body is close to a mobile phone, and adjust the transmitting power of an antenna when the human body is close to the mobile phone.
However, since the SAR sensor occupies a large cost, the power adjustment method based on the SAR sensor has a problem of high cost.
Disclosure of Invention
The embodiment of the application provides an antenna power adjusting method, an antenna power adjusting device and electronic equipment, and aims to solve the problem that the cost is high in a mode of adjusting power based on SAR sensors in the prior art.
In a first aspect, the present application provides a method for adjusting antenna power, which is applied to an electronic device, where the electronic device includes an antenna, and the method includes:
acquiring an impedance value of the antenna;
reducing the transmitting power of the antenna under the condition that the impedance value of the antenna is in a preset impedance interval;
the preset impedance interval is an impedance value interval predetermined based on a current intensity area of the antenna.
In a second aspect, the present application provides an apparatus for adjusting antenna power, applied to an electronic device, where the electronic device includes an antenna, the apparatus includes:
the acquisition module is used for acquiring the impedance value of the antenna;
the processing module is used for reducing the transmitting power of the antenna under the condition that the impedance value of the antenna is located in a preset impedance interval;
the preset impedance interval is an impedance value interval predetermined based on a current intensity area of the antenna.
In a third aspect, the present application provides an electronic device comprising a memory and a processor, the memory having stored thereon a program which, when executed by the processor, performs the method of the first aspect.
In a fourth aspect, the present application provides a readable storage medium having stored thereon a program which when executed performs the method of the first aspect.
In the embodiment of the application, the impedance value of the antenna is obtained; reducing the transmitting power of the antenna under the condition that the impedance value of the antenna is in a preset impedance interval; the preset impedance interval is an impedance value interval predetermined based on a current intensity area of the antenna. Therefore, the transmitting power of the antenna can be conveniently adjusted based on the comparison between the acquired antenna impedance value and the preset impedance interval without introducing the SAR sensor, and the problem of high cost in the mode of adjusting the power based on the SAR sensor in the prior art can be solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
Fig. 1 is a flowchart of a method for adjusting antenna power according to an embodiment of the present application;
fig. 2 is a flowchart of a method for adjusting antenna power according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
fig. 4 is a flowchart of a method for adjusting antenna power according to an embodiment of the present application;
fig. 5-6 are schematic structural diagrams of a method for adjusting antenna power according to an embodiment of the present application;
fig. 7 is a block diagram of a structure of an antenna power adjustment device according to an embodiment of the present application;
fig. 8 is a block diagram of an electronic device according to an embodiment of the present application;
fig. 9 is a schematic hardware structure of an electronic device according to an embodiment of the present application.
Detailed Description
For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
The method for adjusting the antenna power provided by the embodiment of the application can be executed by various electronic devices, and the electronic devices can comprise antennas.
The electronic equipment can be a computer, a printer, a program control exchanger, a network server, a scanner, a fax machine, a copier, a projector, an all-in-one machine, a digital camera, a mobile phone, a video camera, a recording device and the like.
Fig. 1 is a flowchart of a method for adjusting antenna power according to an embodiment of the present application. Referring to fig. 1, the method for adjusting antenna power provided in the embodiment of the present application may include:
step 110, obtaining an impedance value of the antenna;
step 120, reducing the transmitting power of the antenna when the impedance value of the antenna is within the preset impedance interval.
The preset impedance interval is an impedance value interval predetermined based on a current intensity area of the antenna.
It is understood that the impedance value interval predetermined based on the current intensity region of the antenna may be an impedance value interval of the antenna in a case where the current intensity region of the movable object near the antenna is affected by radiation. Wherein the movable object may be a human body or an animal.
Since SAR on an antenna of an electronic device is not uniformly distributed, the SAR value of a region with stronger current is generally higher, and the SAR value of a region with stronger electric field is lower, the antenna can be divided into a current strong region and an electric field strong region according to the magnitude of the SAR value. The current strong region may be a region with an exceeding SAR value on the antenna, and correspondingly, the electric field strong region may be a region with an not exceeding SAR value on the antenna.
The SAR value generally refers to heat energy generated by electromagnetic waves in mobile phone products, and is measurement data of influence on human bodies, wherein the unit is W/Kg. Taking a mobile phone as an example, the security standard value for the mobile phone published by the federal transmission commission (FCC) in the united states is 1.6, so long as the SAR value of the mobile phone is below 1.6, the mobile phone is a product within the security standard, i.e. the SAR value is not out of standard. The SAR value indicates how much the heat energy of the mobile phone can affect the human body, and the larger the numerical value is, the larger the influence on the human body is; and otherwise, the influence is smaller.
In particular, the case where the current intensity area of the movable object near the antenna is affected by radiation may be understood as a case where the distance of the movable object from the antenna is smaller than a threshold value. In this embodiment of the present application, when the distance between the movable object and the antenna exceeds a target distance, the impedance value of the antenna is not affected, and when the distance between the movable object and the antenna is smaller than the target distance, the impedance value of the antenna is affected. It will be appreciated that the antenna impedance value just changes when the distance between the movable object and the antenna is equal to the target distance, and the target distance between the movable object and the antenna may be the threshold value.
In this embodiment of the present application, the distance between the movable object and the antenna may be a distance between the movable object and a current strong area of the antenna, where the current strong area of the antenna may be a location where radiation of the antenna exceeds a standard; that is, when the distance between the movable object and the portion of the antenna that is out of the standard radiation is smaller than the threshold value, the impedance value of the antenna is changed. For example, assuming that the portion of the antenna with the radiation exceeding the standard is the a portion of the antenna, and the threshold value of the radiation influence of the human body near the a portion is 10cm, when the distance between the human body and the a portion is less than 10cm, the human body is affected by the radiation, and the impedance value of the antenna is changed at this time; when the distance between the human body and the position A is more than or equal to 10cm, the human body is not affected by radiation, and the impedance value of the antenna is not changed.
In addition, in the embodiment of the present application, in a case where the impedance value of the antenna is located outside the preset impedance interval, the transmission power of the antenna may be kept unchanged or increased.
Therefore, the transmitting power of the antenna can be reduced only when the impedance value of the antenna is in the preset impedance interval, the transmitting power of the antenna can be reduced only when the movable object is close to the current strong area of the antenna, the transmitting power of the antenna is prevented from being reduced when the movable object is close to the antenna but not close to the current strong area of the antenna, and therefore the transmitting power of the antenna can be accurately adjusted, and the influence of the movable object on the communication quality of the antenna is reduced.
In an embodiment of the present application, when the impedance value of the antenna is located in the preset impedance interval, it may be determined that the movable object is close to the current strong area of the antenna, and at this time, there is a risk of SAR exceeding, SAR NV (non-volatile data) may be invoked to limit the maximum transmission power of the antenna. For example, assuming that the preset impedance range is 40-60 ohms, when the antenna impedance value is 50 ohms, it may be determined that the movable object is close to the current strong region of the antenna, and the maximum transmission power of the antenna needs to be limited; when the antenna impedance value is 30 ohms, it can be determined that the movable object is not close to the current strong area of the antenna, and the maximum transmitting power of the antenna is not required to be limited; when the antenna impedance value is 70 ohms, it can be determined that the movable object is not close to the current strong area of the antenna, and the maximum transmission power of the antenna is not required to be limited. It is to be understood that the above list is exemplary only and is not intended to be limiting.
The NV may be a radio frequency parameter for controlling the actual transmitting power of the antenna, and may include a logic control parameter such as transmitting and receiving, a temperature compensation parameter, a calibration parameter, an audio related parameter, a charging current consumption parameter, and the like, and once the data is written into the NV, the data is not lost even if the data is powered down, and the data is restarted, and the original setting is still maintained. The radio frequency NV may include radio frequency conductive NV, SAR NV reduction, and the like.
According to the method for adjusting the antenna power, the impedance value of the antenna is obtained; reducing the transmitting power of the antenna under the condition that the impedance value of the antenna is in a preset impedance interval; the preset impedance interval is an impedance value interval predetermined based on a current intensity area of the antenna. Therefore, the transmitting power of the antenna can be conveniently adjusted based on the comparison between the acquired antenna impedance value and the preset impedance interval without introducing the SAR sensor, and the problem of high cost in the mode of adjusting the power based on the SAR sensor in the prior art can be solved.
Optionally, in an embodiment of the present application, the obtaining the impedance value of the antenna in step 110 may include: acquiring a first antenna impedance value corresponding to a first time point and a second antenna impedance value corresponding to a second time point of the antenna, wherein the second time point is a time point after the first time point; and when the first antenna impedance value and the second antenna impedance value are different, setting the second antenna impedance value as the impedance value of the antenna. Thus, whether the movable object is close to the antenna can be determined by determining whether the first antenna impedance value corresponding to the first time point and the second antenna impedance value corresponding to the second time point are the same. For example, assume 9 am: the impedance value of the antenna at 00 is 50 ohms at 9 am: the impedance value of the antenna at 01 is 40 ohms, and at this time, since the antenna impedance values at the two time points are different, it can be preliminarily determined that the movable object is close to the antenna.
Step 110 in the antenna power adjustment method provided in the embodiment of the present application is described in further detail below in conjunction with an actual application scenario. As shown in fig. 2, in the method for adjusting antenna power provided in the embodiment of the present application, the step of obtaining the impedance value of the antenna in step 110 may include the following steps:
step 210, sending a target transmission signal to an antenna matching circuit;
the antenna matching circuit may be a circuit on the electronic device that generates a reflected signal after receiving the target transmission signal; the transmission target transmission signal may be a transceiver on an electronic device.
Step 220, obtaining a coupled emission signal and a coupled reflection signal for the target emission signal;
it will be appreciated that the target transmit signal may be coupled by a coupler on the electronic device during transmission to the antenna matching circuit, producing the coupled transmit signal; the reflected signal generated at the antenna matching circuit may also be coupled by a coupler on the electronic device to generate the coupled reflected signal.
Step 230, detecting the amplitude of the coupling emission signal, the amplitude of the coupling reflection signal and the phase difference information of the coupling emission signal and the coupling reflection signal;
Wherein the coupled transmit signal and the coupled reflected signal may be transmitted to a transceiver on an electronic device, the transceiver may detect an amplitude of the coupled transmit signal, an amplitude of the coupled reflected signal, and phase difference information of the coupled transmit signal and the coupled reflected signal.
Step 240, calculating the impedance value of the antenna according to the amplitude of the coupling transmission signal, the amplitude of the coupling reflection signal and the phase difference information of the coupling transmission signal and the coupling reflection signal.
It is understood that, in the case of a calculation formula based on an antenna impedance value, the antenna impedance value may be calculated from the detected amplitude of the coupled transmission signal and the amplitude of the coupled reflection signal, and the phase difference information of the coupled transmission signal and the coupled reflection signal.
In the embodiments of the present application, steps 210-240 describe a specific process for obtaining the antenna impedance value.
The specific procedure of steps 210-240 will be explained below with reference to the accompanying drawings. It is to be understood that the following list is merely exemplary and is not intended to be limiting.
Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The above process of acquiring the impedance value of the antenna is explained in detail with reference to fig. 3.
As shown in fig. 3, the electronic device in the embodiment of the present application may include: the antenna comprises an antenna body 1, an antenna matching circuit 2, a two-way coupler 3, a radio frequency module 4, a transceiver 5 and a processor 6; the rf module 4 may include a combiner 41, a switch 42, a duplexer 43, and a Power Amplifier (PA) 44; the transceiver 5 may include a signal receiving port 51.
Wherein the two-way coupler 3 may be located between the antenna matching circuit 2 and the rf module 4; the two coupling channels of the two-way coupler 3 may couple the target transmitting signal sent by the transceiver 5 to the antenna matching circuit 2 through the radio frequency module 4 and the reflected signal reflected by the antenna matching circuit 2, respectively; both output ports of the two-way coupler 3 may be connected to the signal receiving port 51 in the transceiver 5.
The diplexer 43 in the rf module 4 may be equivalent to the function of two filters; in the frequency division duplex (Frequency Division Duplexing, FDD) band, a diplexer may be used; in the time division duplex (Time Division Duplexing, TDD) band, filters can be used. Where FDD refers to operation of the uplink (mobile to base station) and downlink (base station to mobile) with two separate frequencies (with a certain frequency spacing requirement), the mode operating on a symmetrical frequency band; FDD is suitable for wireless communication systems that provide a single radio frequency channel for each user. TDD is a duplexing mode of a communication system, which is used to separate reception and transmission channels in a mobile communication system.
The power amplifier 44 is an amplifying device capable of outputting a high-power signal. In addition to the pre-stage amplification circuit for amplifying the voltage of the small signal, the output stage of the electronic device generally drives a certain load, such as a speaker, a relay, a motor, an instrument, a deflection coil, an antenna, etc., and a certain power is required for driving the load, so that a power amplification circuit capable of amplifying the signal is required. The working state of the power amplifier can be divided into class A, class B, class C and the like under the condition of triode conduction in the whole period of the sinusoidal signal. In addition, the wireless PA may refer to a base station power amplifier from which wireless signals are transmitted from a base station.
Therefore, the impedance value of the antenna can be calculated through the mutual matching of all devices on the electronic equipment.
In one embodiment of the present application, the antenna may include a plurality of sub-antennas; the preset impedance interval may include a first preset impedance interval, which may be an impedance value interval predetermined based on a current intensity region of a first target sub-antenna, wherein the first target sub-antenna may be one of the plurality of sub-antennas. In one embodiment, the first target sub-antenna may include a first portion on a first side of the electronic device and a second portion on a second side of the electronic device, the first portion may be in contact with the second portion, and the first side of the electronic device may be perpendicular to the second side of the electronic device.
At this time, fig. 4 is a flowchart of a method for adjusting antenna power according to an embodiment of the present application, and as shown in fig. 4, the method for adjusting antenna power according to an embodiment of the present application may include the following steps:
step 410, obtaining an impedance value of a first target sub-antenna on an electronic device.
The impedance value of the first target sub-antenna may be an impedance value of any one of a plurality of sub-antennas on the electronic device, or may be an impedance value of the first target sub-antenna on the electronic device at a first time, a second time, or a third time.
Step 420, reducing the transmitting power of the first target sub-antenna if the impedance value of the first target sub-antenna is located in the first preset impedance interval.
It can be understood that when the impedance value of the first target sub-antenna of the antenna is located in the first preset impedance interval, the movable object approaches to the current strong area of the first target sub-antenna, and at this time, there is a risk of SAR exceeding, and SAR NV can be reduced, so as to limit the maximum transmission power of the first target sub-antenna.
Step 430, keeping the transmitting power of the first target sub-antenna unchanged or increasing the transmitting power of the first target sub-antenna when the impedance value of the first target sub-antenna is outside the first preset impedance interval.
It can be understood that when the impedance value of the first target sub-antenna of the antenna is located outside the first preset impedance interval, the movable object approaches to the electric field strong region of the first target sub-antenna, and at this time, there is no risk of SAR exceeding standard, and radio frequency conduction NV can be invoked, without limiting the maximum transmission power of the first target sub-antenna.
Alternatively, in one embodiment of the present application, as shown in fig. 5, the antenna may include a first sub-antenna a, a second sub-antenna B, and a third sub-antenna C, where the first sub-antenna a may include a first portion A1 located on a first side a of the electronic device and a second portion A2 located on a second side B of the electronic device, the first portion A1 may be in contact with the second portion A2, the second sub-antenna B may be located on the first side a of the electronic device, and the third sub-antenna C may be located on the second side B of the electronic device; the first portion A1 of the first sub-antenna a may correspond to a current intensity region of the first sub-antenna a, and the second portion A2 of the first sub-antenna a may correspond to an electric field intensity region of the first sub-antenna a.
The first target sub-antenna may be the first sub-antenna a, and the first preset impedance interval may be an impedance value interval predetermined based on a current intensity area of the first sub-antenna a.
The obtaining the impedance value of the antenna in step 110 may include: and obtaining the impedance value of the first sub-antenna A. In step 120, when the impedance value of the antenna is within the preset impedance range, reducing the transmission power of the antenna may include: and reducing the transmitting power of the first sub-antenna A under the condition that the impedance value of the first sub-antenna A is in the first preset impedance interval. After step 120, the method may further include: and when the impedance value of the first sub-antenna A is in the first preset impedance interval, reducing the transmitting power of the second sub-antenna B, and keeping the transmitting power of the third sub-antenna C unchanged or increasing the transmitting power of the third sub-antenna C.
As shown in fig. 5, at this time, it may be determined that the movable object is close to the first side a of the electronic apparatus by reducing the transmission power of the first sub-antenna and the second sub-antenna, keeping the transmission power of the third sub-antenna unchanged, or increasing the transmission power of the third sub-antenna.
Similarly, in the case that the impedance value of the first target sub-antenna is located outside the first preset impedance interval in step 430, maintaining the transmission power of the first target sub-antenna unchanged or increasing the transmission power of the first target sub-antenna may include: and under the condition that the impedance value of the first sub-antenna is outside the first preset impedance interval, keeping the transmitting power of the first sub-antenna unchanged or increasing the transmitting power of the first sub-antenna, and keeping the transmitting power of the second sub-antenna unchanged or increasing the transmitting power of the second sub-antenna. After step 430, the method may further include: and reducing the transmitting power of the third sub-antenna under the condition that the impedance value of the first sub-antenna is outside the first preset impedance interval.
As shown in fig. 5, at this time, it may be determined that the movable object is close to the second side b of the electronic apparatus by maintaining the transmission power of the first and second sub-antennas or increasing the transmission power of the first and second sub-antennas and decreasing the transmission power of the third sub-antenna.
For ease of understanding, the movable object will be exemplified by a human body, and will be exemplified herein:
as shown in fig. 5, the upper right corner of the electronic device may be defined as a current intensity area and an electric field intensity area of a first sub-antenna a, where a first portion A1 of the first side a of the electronic device (i.e., a top area of the electronic device) is the current intensity area of the first sub-antenna a, and a second portion A2 of the second side b of the electronic device (i.e., a right area of the electronic device) is the electric field intensity area of the first sub-antenna a; at this time, the first portion A1 of the first sub-antenna a has a risk of SAR exceeding, and the second portion A2 has no risk of SAR exceeding.
The current strong area and the electric field strong area of the second sub-antenna B are both positioned on the first side a of the electronic equipment (namely the top area of the electronic equipment), and SAR (specific absorption rate) exceeding risks exist in the top area of the electronic equipment; the current strong area and the electric field strong area of the third sub-antenna C are both positioned at the second side b of the electronic equipment (namely the right side area of the electronic equipment), and SAR (specific absorption rate) exceeding risks exist in the right side area of the electronic equipment; in addition, the current strong areas of all three sub-antennas cover the back area of the electronic equipment, so that SAR (specific absorption rate) exceeding risks exist in the back area of the electronic equipment.
In the case where the impedance interval of the antenna when the human body approaches the first portion A1 of the first sub-antenna a is set to the first preset impedance interval:
when a human body approaches to the top area of the electronic equipment, namely the first side a, the impedance value of the first sub-antenna A changes and is positioned in a first preset impedance interval; judging that the human body is close to the top area of the electronic equipment; at this time, the first sub-antenna a and the second sub-antenna B in the top area have SAR exceeding risk, and the SAR NV lowering of the first sub-antenna a and the second sub-antenna B and the radio frequency conduction NV of the third sub-antenna C can be invoked; only the maximum transmit powers of the first and second sub-antennas a and B are limited, and the maximum transmit power of the third sub-antenna C is not limited.
When the human body approaches the right side area of the electronic equipment, namely the second side b, the impedance value of the first sub-antenna A changes but is not located in a first preset antenna impedance interval; judging that a human body is close to a right side area of the electronic equipment, wherein the first sub-antenna A of the right side area has no SAR exceeding risk, and the third sub-antenna C has SAR exceeding risk; the radio frequency conduction NV of the first sub-antenna a and the second sub-antenna B and the SAR reduction NV of the third sub-antenna C can be invoked; the maximum transmit powers of the first and second sub-antennas a and B are not limited, and only the maximum transmit power of the third sub-antenna C is limited.
Therefore, whether the antenna impedance value is located in the first preset impedance interval or not can be further judged to judge that the movable object is close to a specific area of the antenna, so that the antenna transmitting power is reduced more accurately, and the influence of SAR on communication quality is reduced.
Alternatively, in one embodiment of the present application, as shown in fig. 6, the antenna may include a first sub-antenna a, a second sub-antenna B, and a third sub-antenna C, where the first sub-antenna a may include a first portion A1 located on a first side a of the electronic device and a second portion A2 located on a second side B of the electronic device, the first portion A1 of the first sub-antenna a may be in contact with the second portion A2 of the first sub-antenna a, the second sub-antenna B may be located on a first side a of the electronic device, the third sub-antenna C may include a first portion C1 located on a second side B of the electronic device and a second portion C2 located on a third side C of the electronic device, and the first portion C1 of the third sub-antenna C may be in contact with the second portion C2 of the third sub-antenna C, where the first portion C1 of the third sub-antenna C is located on the opposite side a and the third side C of the electronic device; the first portion A1 of the first sub-antenna a may correspond to a current intensity region of the first sub-antenna a, and the second portion A2 of the first sub-antenna a may correspond to an electric field intensity region of the first sub-antenna a; the first portion C1 of the third sub-antenna C may correspond to a current strong region of the third sub-antenna C, and the second portion C2 of the third sub-antenna C may correspond to an electric field strong region of the third sub-antenna C.
The first preset impedance interval may be an impedance value interval predetermined based on a current intensity area of the first sub-antenna a. The preset impedance interval may further include a second preset impedance interval, which may be an impedance value interval predetermined based on the current intensity region of the third sub-antenna C.
The obtaining the impedance value of the antenna in step 110 may include: and acquiring the impedance value of the first sub-antenna A and the impedance value of the third sub-antenna C. In step 120, when the impedance value of the antenna is within the preset impedance range, reducing the transmission power of the antenna may include: reducing the transmitting power of the first sub-antenna A under the condition that the impedance value of the first sub-antenna A is located in the first preset impedance interval; and/or, in the case that the impedance value of the third sub-antenna C is located in the second preset impedance interval, reducing the transmission power of the third sub-antenna C. After step 120, the method may further include: and reducing the transmitting power of the second sub-antenna B under the condition that the impedance value of the first sub-antenna A is in the first preset impedance interval.
As shown in fig. 6, at this time, it may be determined that the movable object is close to the first side a of the electronic apparatus by reducing the transmission power of the first sub-antenna and the second sub-antenna, keeping the transmission power of the third sub-antenna unchanged, or increasing the transmission power of the third sub-antenna.
Similarly, the method may further include: reducing the transmitting power of the third sub-antenna under the condition that the impedance value of the third sub-antenna is in the second preset impedance interval, and keeping the transmitting power of the first sub-antenna and the transmitting power of the second sub-antenna unchanged or increasing the transmitting power of the first sub-antenna and the transmitting power of the second sub-antenna; under the condition that the impedance value of the first sub-antenna is outside the first preset impedance interval, keeping the transmitting power of the first sub-antenna unchanged or increasing the transmitting power of the first sub-antenna, and keeping the transmitting power of the second sub-antenna unchanged or increasing the transmitting power of the second sub-antenna; and under the condition that the impedance value of the third sub-antenna is outside the second preset impedance interval, keeping the transmitting power of the third sub-antenna unchanged or increasing the transmitting power of the third sub-antenna.
For ease of understanding, the movable object will be exemplified by a human body, and will be exemplified herein:
as shown in fig. 6, the upper right corner position of the electronic device may be defined as a dividing boundary of the current intensity region and the electric field intensity region of the first sub-antenna a; the first part A1 of the first side a of the electronic device (namely the top area of the electronic device) is a current strong area of the first sub-antenna A, and the second part A2 of the second side b of the electronic device (namely the right area of the electronic device) is an electric field strong area of the first sub-antenna A; at this time, the first sub-antenna a has a risk of SAR exceeding in the top surface area of the electronic device, and has no risk of SAR exceeding in the right side area of the electronic device.
The lower right corner of the electronic device can be used as the dividing boundary of the current strong area and the electric field strong area of the third sub-antenna C; the second part C2 of the third side C of the electronic device (namely the bottom area of the electronic device) is the electric field strong area of the third sub-antenna C, and the first part C1 of the third side b of the electronic device (namely the right area of the electronic device) is the electric field strong area of the third sub-antenna C; at this time, the third sub-antenna C has no risk of SAR exceeding in the bottom area of the electronic device, and has risk of SAR exceeding in the right area of the electronic device.
The current strong area and the electric field strong area of the second sub-antenna B are both positioned on the first side a of the electronic equipment (namely the top area of the electronic equipment), and SAR (specific absorption rate) exceeding risks exist in the top area of the electronic equipment; in addition, the current strong areas of all three sub-antennas cover the back area of the electronic equipment, so that SAR (specific absorption rate) exceeding risks exist in the back area of the electronic equipment.
In the case where the antenna impedance section corresponding to the first portion A1 of the human body near the first sub-antenna a is set as a first preset impedance section and the antenna impedance section corresponding to the first portion C1 of the human body near the third sub-antenna C is set as a second preset impedance section:
when the human body approaches the top area of the electronic equipment, namely the first side a, only the impedance value of the first sub-antenna A changes and is positioned in a first preset impedance interval; judging that a human body approaches to the top area of the electronic equipment, wherein SAR (synthetic aperture radar) exceeding risks exist in the first sub-antenna A and the second sub-antenna B of the antenna in the top area; at the moment, the first sub-antenna A and the second sub-antenna B call SAR NV reduction, and the maximum radiation power of the first sub-antenna A and the second sub-antenna B is limited; the third sub-antenna C invokes the radio frequency conduction NV without limiting the maximum transmit power of the third sub-antenna C.
When the human body approaches the bottom area of the electronic equipment, namely the third side C, only the impedance value of the third sub-antenna C changes but is not located in the second preset impedance interval; the human body is judged to be close to the bottom area of the electronic equipment, the bottom area is the electric field strong area of the third sub-antenna C, and the risk of SAR exceeding is avoided; at this time, the three sub-antennas all invoke radio frequency conduction NV, and the three sub-antennas do not limit the maximum transmitting power.
When the human body approaches the right side area of the electronic equipment, namely the second side b, the impedance value of the first sub-antenna A is changed but is not located in a first preset impedance interval, and the impedance value of the third sub-antenna C is changed and is located in a second preset impedance interval; judging that the human body is close to the right side area of the electronic equipment; the first sub-antenna A has no SAR standard exceeding risk in the right side area of the electronic equipment, and the third sub-antenna C has SAR standard exceeding risk in the right side area of the electronic equipment; at the moment, the first sub-antenna A and the second sub-antenna B call radio frequency conduction NV, and the third sub-antenna C calls SAR NV reduction; only the maximum transmit power of the third sub-antenna C is limited, and the maximum transmit powers of the first sub-antenna a and the second sub-antenna B are not limited.
When a human body approaches to the back area of the electronic equipment, the impedance values of the first sub antenna A and the third sub antenna C are changed and are respectively positioned in a first preset impedance interval and a second preset impedance interval; judging that the human body is close to the back area of the electronic equipment; at this time, the first sub-antenna a, the second sub-antenna B and the third sub-antenna C all have the risk of SAR exceeding, so that the SAR NV needs to be reduced, and the maximum transmitting power needs to be limited.
When the user holds the mobile phone by using the two hands and the fingers do not touch the right side area of the mobile phone, the impedance value of the first sub-antenna A is changed and is located in a first preset impedance interval, and the impedance value of the third sub-antenna C is changed and is not located in a second preset impedance interval; judging that the human body is close to the top and bottom areas of the whole machine; at this time, the first sub-antenna A and the second sub-antenna B both have SAR standard exceeding risks, and the third sub-antenna C has no SAR standard exceeding risk; the first sub-antenna A and the second sub-antenna B both call SAR NV reduction, and the third sub-antenna C calls RF conduction NV; the maximum transmit powers of the first and second sub-antennas a and B are limited, and the maximum transmit power of the third sub-antenna C is not limited.
Therefore, the specific area of the movable object, which is close to the antenna, can be further subdivided by detecting the impedance value changes of the plurality of antennas at the same time, so that the transmitting power of the antenna is reduced more accurately, and the influence of SAR on the communication quality is reduced.
According to the antenna power adjusting method, the specific area of the movable object close to the antenna can be judged by further judging whether the antenna impedance value is located in the first preset impedance interval or not, and the specific area of the movable object close to the antenna can be further subdivided by detecting the impedance value changes of a plurality of antennas at the same time, so that the antenna transmitting power is reduced more accurately, and the influence of SAR on communication quality is reduced.
Fig. 7 is a block diagram of a structure of an antenna power adjustment device according to an embodiment of the present application. Referring to fig. 7, an apparatus 700 for adjusting antenna power according to an embodiment of the present application may include: an acquisition module 710 and a processing module 720.
The acquiring module 710 is configured to acquire an impedance value of the antenna;
the processing module 720 is configured to reduce a transmit power of the antenna if the impedance value of the antenna is in a preset impedance interval;
The preset impedance interval is an impedance value interval predetermined based on a current intensity area of the antenna.
According to the device for adjusting the antenna power, provided by the embodiment of the application, the impedance value of the antenna is obtained; reducing the transmitting power of the antenna under the condition that the impedance value of the antenna is in a preset impedance interval; the preset impedance interval is an impedance value interval predetermined based on a current intensity area of the antenna. Therefore, the transmitting power of the antenna can be conveniently adjusted based on the comparison between the acquired antenna impedance value and the preset impedance interval without introducing the SAR sensor, and the problem of high cost in the mode of adjusting the power based on the SAR sensor in the prior art can be solved.
Alternatively, in one embodiment, the obtaining module 710 may specifically be configured to: acquiring a first antenna impedance value corresponding to a first time point and a second antenna impedance value corresponding to a second time point of the antenna, wherein the second time point is a time point after the first time point; and when the first antenna impedance value and the second antenna impedance value are different, setting the second antenna impedance value as the impedance value of the antenna.
Optionally, in one embodiment, the antenna may include a first sub-antenna, a second sub-antenna, and a third sub-antenna, the first sub-antenna may include a first portion located on a first side of the electronic device and a second portion located on a second side of the electronic device, the first portion and the second portion may be in contact, the second sub-antenna may be located on the first side of the electronic device, and the third sub-antenna may be located on the second side of the electronic device; the first portion of the first sub-antenna may correspond to a current intensity region of the first sub-antenna, and the second portion of the first sub-antenna may correspond to an electric field intensity region of the first sub-antenna; the preset impedance interval may include a first preset impedance interval, which may be an impedance value interval predetermined based on a current intensity region of the first sub-antenna; the obtaining module 710 may specifically be configured to: acquiring an impedance value of the first sub-antenna; the processing module 720 may specifically be configured to: reducing the transmitting power of the first sub-antenna under the condition that the impedance value of the first sub-antenna is located in the first preset impedance interval; the processing module 720 may also be configured to: and under the condition that the impedance value of the first sub-antenna is in the first preset impedance interval, reducing the transmitting power of the second sub-antenna, and keeping the transmitting power of the third sub-antenna unchanged or increasing the transmitting power of the third sub-antenna.
Optionally, in one embodiment, the antenna may include a first sub-antenna, a second sub-antenna, and a third sub-antenna, the first sub-antenna may include a first portion located on a first side of the electronic device and a second portion located on a second side of the electronic device, the first portion of the first sub-antenna may be in contact with the second portion of the first sub-antenna, the second sub-antenna may be located on the first side of the electronic device, the third sub-antenna may include a first portion located on the second side of the electronic device and a second portion located on a third side of the electronic device, the first portion of the third sub-antenna may be in contact with the second portion of the third sub-antenna, and the first side of the electronic device may be opposite the third side; the first portion of the first sub-antenna may correspond to a current intensity region of the first sub-antenna, and the second portion of the first sub-antenna may correspond to an electric field intensity region of the first sub-antenna; the first portion of the third sub-antenna may correspond to a current intensity region of the third sub-antenna, and the second portion of the third sub-antenna may correspond to an electric field intensity region of the third sub-antenna; the preset impedance interval may include a first preset impedance interval and a second preset impedance interval, the first preset impedance interval may be an impedance value interval predetermined based on a current intensity area of the first sub-antenna, and the second preset impedance interval may be an impedance value interval predetermined based on a current intensity area of the third sub-antenna; the obtaining module 710 may specifically be configured to: acquiring an impedance value of the first sub-antenna and an impedance value of the third sub-antenna; the processing module 720 may specifically be configured to: reducing the transmitting power of the first sub-antenna under the condition that the impedance value of the first sub-antenna is located in the first preset impedance interval; and/or, in case the impedance value of the third sub-antenna is located in the second preset impedance interval, reducing the transmitting power of the third sub-antenna; the processing module 720 may also be configured to: and reducing the transmitting power of the second sub-antenna under the condition that the impedance value of the first sub-antenna is in the first preset impedance interval.
It should be noted that, the device for adjusting antenna power provided in the embodiments of the present application corresponds to the above-mentioned method for adjusting antenna power. For the relevant content, reference is made to the above description of the method for adjusting the antenna power, which is not repeated here.
In addition, as shown in fig. 8, the embodiment of the present application further provides an electronic device 800, where the electronic device 800 may include a memory 810 and a processor 820, where the memory 810 may store a program, and where the program may be executed by the processor 820 to implement any of the methods for adjusting antenna power described above. For example, the program when executed by the processor 820 performs the following: acquiring an impedance value of the antenna; reducing the transmitting power of the antenna under the condition that the impedance value of the antenna is in a preset impedance interval; the preset impedance interval is an impedance value interval predetermined based on a current intensity area of the antenna. Therefore, the transmitting power of the antenna can be conveniently adjusted based on the comparison between the acquired antenna impedance value and the preset impedance interval without introducing the SAR sensor, and the problem of high cost in the mode of adjusting the power based on the SAR sensor in the prior art can be solved.
The embodiment of the application also provides a readable storage medium, on which a program is stored, which when executed implements any of the above-described methods of adjusting antenna power. For example, the program when executed by the processor 820 performs the following: acquiring an impedance value of the antenna; reducing the transmitting power of the antenna under the condition that the impedance value of the antenna is in a preset impedance interval; the preset impedance interval is an impedance value interval predetermined based on a current intensity area of the antenna. Therefore, the transmitting power of the antenna can be conveniently adjusted based on the comparison between the acquired antenna impedance value and the preset impedance interval without introducing the SAR sensor, and the problem of high cost in the mode of adjusting the power based on the SAR sensor in the prior art can be solved.
Fig. 9 is a schematic diagram of a hardware structure of an electronic device implementing various embodiments of the invention.
The electronic device 900 includes, but is not limited to: radio frequency unit 901, network module 902, audio output unit 903, input unit 904, sensor 905, display unit 906, user input unit 907, interface unit 908, memory 909, processor 910, and power source 911. It will be appreciated by those skilled in the art that the electronic device structure shown in fig. 9 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than illustrated, or may combine certain components, or may have a different arrangement of components. In the embodiment of the invention, the electronic equipment comprises, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer and the like.
Wherein, in one embodiment of the present application, the processor 910 may include a first processor, a second processor, a third processor, and a fourth processor, and the memory 909 may include a first memory and a second memory. The processor 910 may perform the following process: the first processor may continuously calculate an impedance value of the antenna and transmit the impedance value of the antenna to the first memory; the first processor may store the antenna impedance value for each time point every time point when the antenna impedance value for each time point is calculated; the second processor can read and compare a first antenna impedance value corresponding to a first time point and a second antenna impedance value corresponding to a second time point stored in the first memory; under the condition that the first antenna impedance value corresponding to the first time point is the same as the second antenna impedance value corresponding to the second time point, the third processor is not called, and the second processor continues the subsequent comparison operation of the antenna impedance values; when the first antenna impedance value corresponding to the first time point is different from the second antenna impedance value corresponding to the second time point, the second processor calls the third processor, and the second processor can continue the subsequent comparison operation of the antenna impedance values; the third processor may call a second antenna impedance value corresponding to the second time point in the first memory and the preset impedance interval in the second memory, and determine whether the second antenna impedance value corresponding to the second time point is located in the preset impedance interval; under the condition that the impedance value of the second antenna corresponding to the second time point is not located in the preset impedance interval, judging that the movable object is not close to the current strong area of the antenna, and avoiding SAR exceeding risk; under the condition that a second antenna impedance value corresponding to the second time point is located in the preset impedance interval, judging that the movable object is close to a current strong area of the antenna, and possibly having SAR exceeding risk; the third processor may transmit the determination result to the fourth processor; the fourth processor may send a control signal to the modem according to the determination result of the third processor; the modem can call the corresponding NV according to the received control signal; when the movable object is not close to the current strong area of the antenna, radio frequency conduction NV is invoked, and the maximum transmitting power of the antenna is not limited; and when the movable object is judged to be close to the current intensity of the antenna, the SAR NV is reduced, and the maximum transmitting power of the antenna is limited.
According to the electronic equipment provided by the embodiment of the invention, the specific area of the movable object close to the antenna can be judged by changing the antenna impedance value and further judging whether the antenna impedance value is in the preset impedance interval, so that the antenna transmitting power is reduced more accurately, and the influence of SAR on the communication quality is reduced.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 901 may be used for receiving and transmitting signals during the process of receiving and transmitting information or communication, specifically, receiving downlink data from a base station and then processing the downlink data by the processor 910; and, the uplink data is transmitted to the base station. Typically, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 901 may also communicate with networks and other devices via a wireless communication system.
The electronic device provides wireless broadband internet access to the user via the network module 902, such as helping the user to send and receive e-mail, browse web pages, and access streaming media, etc.
The audio output unit 903 may convert audio data received by the radio frequency unit 901 or the network module 902 or stored in the memory 909 into an audio signal and output as sound. Also, the audio output unit 903 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the electronic device 900. The audio output unit 903 includes a speaker, a buzzer, a receiver, and the like.
The input unit 904 is used to receive an audio or video signal. The input unit 904 may include a graphics processor (Graphics Processing Unit, GPU) 9041 and a microphone 9042, the graphics processor 9041 processing image data of still pictures or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 906. The image frames processed by the graphics processor 9041 may be stored in memory 909 (or other storage medium) or transmitted via the radio frequency unit 901 or the network module 902. The microphone 9042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 901 in the case of a telephone call mode.
The electronic device 900 also includes at least one sensor 905, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 9061 according to the brightness of ambient light, and the proximity sensor can turn off the display panel 9061 and/or the backlight when the electronic device 900 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when stationary, and can be used for recognizing the gesture of the electronic equipment (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; the sensor 905 may further include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which are not described herein.
The display unit 906 is used to display information input by a user or information provided to the user. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 907 is operable to receive input numeric or character information, and to generate key signal inputs related to user settings and function controls of the electronic device. In particular, the user input unit 907 includes a touch panel 9071 and other input devices 9072. Touch panel 9071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (such as operations of the user on touch panel 9071 or thereabout using any suitable object or accessory such as a finger, stylus, or the like). The touch panel 9071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch azimuth of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 910, and receives and executes commands sent by the processor 910. In addition, the touch panel 9071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 907 may also include other input devices 9072 in addition to the touch panel 9071. In particular, other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
Further, the touch panel 9071 may be overlaid on the display panel 9061, and when the touch panel 9071 detects a touch operation thereon or thereabout, the touch operation is transmitted to the processor 910 to determine a type of touch event, and then the processor 910 provides a corresponding visual output on the display panel 9061 according to the type of touch event. Although in fig. 9, the touch panel 9071 and the display panel 9061 are two independent components for implementing the input and output functions of the electronic device, in some embodiments, the touch panel 9071 and the display panel 9061 may be integrated to implement the input and output functions of the electronic device, which is not limited herein.
The interface unit 908 is an interface to which an external device is connected to the electronic apparatus 900. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 905 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more components within the electronic apparatus 900 or may be used to transmit data between the electronic apparatus 900 and an external device.
The memory 909 may be used to store software programs as well as various data. The memory 909 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, application programs (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, the memory 909 may include high-speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 910 is a control center of the electronic device, connects various parts of the entire electronic device using various interfaces and lines, and performs various functions of the electronic device and processes data by running or executing software programs and/or modules stored in the memory 909, and calling data stored in the memory 909, thereby performing overall monitoring of the electronic device. Processor 910 may include one or more processing units; preferably, the processor 910 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 910.
The electronic device 900 may also include a power supply 911 (e.g., a battery) for powering the various components, and the power supply 911 may preferably be logically coupled to the processor 910 by a power management system, such as to perform charge, discharge, and power consumption management functions.
In addition, the electronic device 900 includes some functional modules that are not shown, and will not be described herein.
The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used for running a program or an instruction, so that any one of the methods for adjusting the antenna power provided in the embodiment of the application can be implemented, and the same technical effect can be achieved, so that repetition is avoided, and no redundant description is provided here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods described in the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims (10)

1. An antenna power adjusting method applied to an electronic device, wherein the electronic device comprises an antenna, and the method comprises the following steps:
acquiring an impedance value of the antenna;
reducing the transmitting power of the antenna under the condition that the impedance value of the antenna is in a preset impedance interval;
wherein the preset impedance interval is an impedance value interval predetermined based on a current intensity region of the antenna; the impedance value interval predetermined based on the current intensity region of the antenna includes: and a predetermined impedance value interval in the case that the distance between the movable object and the current intensity region of the antenna is smaller than a threshold value.
2. The method of claim 1, wherein the obtaining the impedance value of the antenna comprises:
acquiring a first antenna impedance value corresponding to a first time point and a second antenna impedance value corresponding to a second time point of the antenna, wherein the second time point is a time point after the first time point;
and when the first antenna impedance value and the second antenna impedance value are different, setting the second antenna impedance value as the impedance value of the antenna.
3. The method of claim 1, wherein the antenna comprises a first sub-antenna, a second sub-antenna, and a third sub-antenna, the first sub-antenna comprising a first portion located on a first side of the electronic device and a second portion located on a second side of the electronic device, the first portion and the second portion being in contact, the second sub-antenna located on the first side of the electronic device, the third sub-antenna located on the second side of the electronic device; a first part of the first sub-antenna corresponds to a current strong region of the first sub-antenna, and a second part of the first sub-antenna corresponds to an electric field strong region of the first sub-antenna;
the preset impedance interval comprises a first preset impedance interval, and the first preset impedance interval is an impedance value interval which is preset based on a current intensity area of the first sub-antenna;
the obtaining the impedance value of the antenna includes: acquiring an impedance value of the first sub-antenna;
the reducing the transmitting power of the antenna when the impedance value of the antenna is in a preset impedance interval includes: reducing the transmitting power of the first sub-antenna under the condition that the impedance value of the first sub-antenna is located in the first preset impedance interval;
The method further comprises the steps of: and under the condition that the impedance value of the first sub-antenna is in the first preset impedance interval, reducing the transmitting power of the second sub-antenna, and keeping the transmitting power of the third sub-antenna unchanged or increasing the transmitting power of the third sub-antenna.
4. The method of claim 1, wherein the antenna comprises a first sub-antenna, a second sub-antenna, and a third sub-antenna, the first sub-antenna comprising a first portion located on a first side of the electronic device and a second portion located on a second side of the electronic device, the first portion of the first sub-antenna and the second portion of the first sub-antenna being in contact, the second sub-antenna being located on the first side of the electronic device, the third sub-antenna comprising a first portion located on the second side of the electronic device and a second portion located on a third side of the electronic device, the first portion of the third sub-antenna and the second portion of the third sub-antenna being in contact, the first side of the electronic device and the third side being opposite; a first part of the first sub-antenna corresponds to a current strong region of the first sub-antenna, and a second part of the first sub-antenna corresponds to an electric field strong region of the first sub-antenna; the first part of the third sub-antenna corresponds to a current strong area of the third sub-antenna, and the second part of the third sub-antenna corresponds to an electric field strong area of the third sub-antenna;
The preset impedance interval comprises a first preset impedance interval and a second preset impedance interval, the first preset impedance interval is an impedance value interval which is preset based on the current intensity area of the first sub-antenna, and the second preset impedance interval is an impedance value interval which is preset based on the current intensity area of the third sub-antenna;
the obtaining the impedance value of the antenna includes: acquiring an impedance value of the first sub-antenna and an impedance value of the third sub-antenna;
the reducing the transmitting power of the antenna when the impedance value of the antenna is in a preset impedance interval includes: reducing the transmitting power of the first sub-antenna under the condition that the impedance value of the first sub-antenna is located in the first preset impedance interval; and/or, in case the impedance value of the third sub-antenna is located in the second preset impedance interval, reducing the transmitting power of the third sub-antenna;
the method further comprises the steps of: and reducing the transmitting power of the second sub-antenna under the condition that the impedance value of the first sub-antenna is in the first preset impedance interval.
5. An antenna power adjusting device applied to an electronic device, wherein the electronic device comprises an antenna, and the device comprises:
The acquisition module is used for acquiring the impedance value of the antenna;
the processing module is used for reducing the transmitting power of the antenna under the condition that the impedance value of the antenna is located in a preset impedance interval;
wherein the preset impedance interval is an impedance value interval predetermined based on a current intensity region of the antenna; the impedance value interval predetermined based on the current intensity region of the antenna includes: and a predetermined impedance value interval in the case that the distance between the movable object and the current intensity region of the antenna is smaller than a threshold value.
6. The apparatus of claim 5, wherein the acquisition module is specifically configured to:
acquiring a first antenna impedance value corresponding to a first time point and a second antenna impedance value corresponding to a second time point of the antenna, wherein the second time point is a time point after the first time point;
and when the first antenna impedance value and the second antenna impedance value are different, setting the second antenna impedance value as the impedance value of the antenna.
7. The apparatus of claim 5, wherein the antenna comprises a first sub-antenna, a second sub-antenna, and a third sub-antenna, the first sub-antenna comprising a first portion located on a first side of the electronic device and a second portion located on a second side of the electronic device, the first portion and the second portion being in contact, the second sub-antenna located on the first side of the electronic device, the third sub-antenna located on the second side of the electronic device; a first part of the first sub-antenna corresponds to a current strong region of the first sub-antenna, and a second part of the first sub-antenna corresponds to an electric field strong region of the first sub-antenna;
The preset impedance interval comprises a first preset impedance interval, and the first preset impedance interval is an impedance value interval which is preset based on a current intensity area of the first sub-antenna;
the acquisition module is specifically configured to: acquiring an impedance value of the first sub-antenna;
the processing module is specifically configured to: reducing the transmitting power of the first sub-antenna under the condition that the impedance value of the first sub-antenna is located in the first preset impedance interval;
the processing module is further configured to: and under the condition that the impedance value of the first sub-antenna is in the first preset impedance interval, reducing the transmitting power of the second sub-antenna, and keeping the transmitting power of the third sub-antenna unchanged or increasing the transmitting power of the third sub-antenna.
8. The apparatus of claim 5, wherein the antenna comprises a first sub-antenna, a second sub-antenna, and a third sub-antenna, the first sub-antenna comprising a first portion located on a first side of the electronic device and a second portion located on a second side of the electronic device, the first portion of the first sub-antenna and the second portion of the first sub-antenna being in contact, the second sub-antenna being located on the first side of the electronic device, the third sub-antenna comprising a first portion located on the second side of the electronic device and a second portion located on a third side of the electronic device, the first portion of the third sub-antenna and the second portion of the third sub-antenna being in contact, the first side of the electronic device and the third side being opposite; a first part of the first sub-antenna corresponds to a current strong region of the first sub-antenna, and a second part of the first sub-antenna corresponds to an electric field strong region of the first sub-antenna; the first part of the third sub-antenna corresponds to a current strong area of the third sub-antenna, and the second part of the third sub-antenna corresponds to an electric field strong area of the third sub-antenna;
The preset impedance interval comprises a first preset impedance interval and a second preset impedance interval, the first preset impedance interval is an impedance value interval which is preset based on the current intensity area of the first sub-antenna, and the second preset impedance interval is an impedance value interval which is preset based on the current intensity area of the third sub-antenna;
the acquisition module is specifically configured to: acquiring an impedance value of the first sub-antenna and an impedance value of the third sub-antenna;
the processing module is specifically configured to: reducing the transmitting power of the first sub-antenna under the condition that the impedance value of the first sub-antenna is located in the first preset impedance interval; and/or, in case the impedance value of the third sub-antenna is located in the second preset impedance interval, reducing the transmitting power of the third sub-antenna;
the processing module is further configured to: and reducing the transmitting power of the second sub-antenna under the condition that the impedance value of the first sub-antenna is in the first preset impedance interval.
9. An electronic device comprising a memory and a processor, the memory having stored thereon a program which, when executed by the processor, performs the method according to any of claims 1-4.
10. A readable storage medium, characterized in that it has stored thereon a program which, when executed, implements the method according to any of claims 1-4.
CN202111079417.8A 2021-09-15 2021-09-15 Antenna power adjusting method and device and electronic equipment Active CN113852387B (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112599959A (en) * 2020-11-30 2021-04-02 Oppo广东移动通信有限公司 Electronic equipment and shell thereof

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* Cited by examiner, † Cited by third party
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US10498011B2 (en) * 2016-09-02 2019-12-03 Apple Inc. Electronic devices having closed-loop antenna adjustment capabilities
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CN108777744A (en) * 2018-05-28 2018-11-09 深圳市万普拉斯科技有限公司 The regulation and control method, device and mobile terminal of antenna radiation performance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112599959A (en) * 2020-11-30 2021-04-02 Oppo广东移动通信有限公司 Electronic equipment and shell thereof

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