CN113852387A - 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
CN113852387A
CN113852387A CN202111079417.8A CN202111079417A CN113852387A CN 113852387 A CN113852387 A CN 113852387A CN 202111079417 A CN202111079417 A CN 202111079417A CN 113852387 A CN113852387 A CN 113852387A
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antenna
sub
impedance value
interval
impedance
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CN113852387B (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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Transmitters (AREA)

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 in the prior art, the cost is high in a power adjusting mode based on an SAR sensor. 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 which is predetermined based on a current intensity area of the antenna.

Description

Antenna power adjusting method and device and electronic equipment
Technical Field
The present application 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, people pay more attention to the index of the electromagnetic Absorption Rate (SAR).
In order to ensure that the SAR index meets the requirements of regulatory agencies, mobile phone manufacturers generally use SAR sensors to detect whether a human body is approaching the mobile phone, and adjust the transmission power of the antenna when the human body is approaching the mobile phone.
However, the SAR sensor occupies a large cost, and this method for adjusting power 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 and device and electronic equipment, and aims to solve the problem that in the prior art, the cost is high in a power adjusting mode based on an SAR sensor.
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 which is predetermined based on a current intensity area of the antenna.
In a second aspect, the present application provides an apparatus for adjusting antenna power, which is applied to an electronic device, where the electronic device includes an antenna, and 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 in a preset impedance interval;
the preset impedance interval is an impedance value interval which is 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 that, 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 which is 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 an SAR sensor, and the problem that the power adjustment mode based on the SAR sensor in the prior art has higher cost 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 embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a flowchart of an antenna power adjustment method according to an embodiment of the present application;
fig. 2 is a flowchart of an antenna power adjustment method 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 an antenna power adjustment method 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 disclosure;
fig. 7 is a block diagram of an antenna power adjustment apparatus according to an embodiment of the present disclosure;
fig. 8 is a block diagram of an electronic device according to an embodiment of the present disclosure;
fig. 9 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The technical solutions provided by the embodiments of the present application are described in detail below 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 device can be a computer, a printer, a program controlled switch, a network server, a scanner, a facsimile 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 an antenna power adjustment method according to an embodiment of the present application. Referring to fig. 1, a method for adjusting antenna power provided in an embodiment of the present application may include:
step 110, obtaining an impedance value of the antenna;
and 120, 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 which is 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 a movable object is influenced by radiation in a vicinity of the current intensity region of the antenna. Wherein the movable object may be a human body or an animal.
Because the SAR on the antenna of the electronic equipment is not uniformly distributed, the SAR value of the area with stronger current is higher generally, and the SAR value of the area with stronger electric field is lower, the antenna can be divided into a current strong area and an electric field strong area according to the size of the SAR value. The current strong region may be a region where the SAR value on the antenna exceeds the standard, and correspondingly, the electric field strong region may be a region where the SAR value on the antenna does not exceed the standard.
The SAR value generally refers to the heat energy generated by electromagnetic waves in a mobile phone product, and is a measurement data for influencing a human body, and the unit is W/Kg (watt/Kg). Taking a mobile phone as an example, the safety standard value for the mobile phone published by the federal commission of the united states (FCC) is 1.6, so as long as the SAR value of the mobile phone is below 1.6, the mobile phone is a product within the safety standard, that is, the SAR value does not exceed the standard. The SAR value indicates how much influence the heat energy of the mobile phone can cause on human body, and the larger the numerical value is, the larger the influence on the human body is; otherwise, the influence is small.
In particular, the case where the current intensity region 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 less than a threshold value. In the 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 is understood that when the distance between the movable object and the antenna is equal to the target distance, the antenna impedance value just changes, and the target distance between the movable object and the antenna may be the threshold value.
In this embodiment of the present application, a distance between the movable object and the antenna may be a distance between the movable object and a current intensity region of the antenna, and the current intensity region of the antenna may be a portion where radiation of the antenna exceeds a standard; that is, when the distance of the movable object from the portion where the antenna radiation exceeds the standard is less than the threshold, the impedance value of the antenna may be changed. For example, if the part of the antenna where the radiation exceeds standard is the position a of the antenna, and the threshold value of the human body close to the position a with radiation influence is 10cm, when the distance between the human body and the position a is less than 10cm, the human body is influenced by the radiation, and the impedance value of the antenna changes at the moment; when the distance between the human body and the position A is larger than or equal to 10cm, the human body is not influenced by radiation, and the impedance value of the antenna is not changed.
In addition, in the embodiment of the present application, when 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 under the condition that the impedance value of the antenna is located in the preset impedance interval, the transmitting power of the antenna is reduced under the condition that the movable object is close to the current strong area of the antenna, the transmitting power of the antenna is prevented from being reduced under the condition that the movable object is close to the antenna but not close to the current strong area of the antenna, 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 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 region of the antenna, at this time, there is a risk that the SAR exceeds the standard, and a non-volatile data (SAR NV) reduction may be invoked to limit the maximum transmission power of the antenna. For example, assuming that the preset impedance interval 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, the movable object can be judged not to be 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 region of the antenna, and the maximum transmission power of the antenna is not 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 actual transmission power of the antenna, and may include a transmission/reception logic control parameter, a temperature compensation parameter, a calibration parameter, an audio-related parameter, a charging current consumption parameter, and the like. The radio frequency NV may include radio frequency conducted NV, reduced SAR NV, 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 which is 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 an SAR sensor, and the problem that the power adjustment mode based on the SAR sensor in the prior art has higher cost can be solved.
Optionally, in an embodiment of the present application, the obtaining an 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, taking the second antenna impedance value as the impedance value of the antenna. Thus, whether the movable object is close to the antenna can be judged by judging whether 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. For example, assume that at 9 am: the impedance value of the antenna at 00 o was 50 ohms, 9 a.m.: when 01, the impedance value of the antenna is 40 ohms, and at this time, because the impedance values of the antenna at 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 further described in detail below with reference to 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 obtaining an impedance value of the antenna in step 110 may include the following steps:
step 210, sending a target transmitting signal to an antenna matching circuit;
the antenna matching circuit may be a circuit that generates a reflected signal after receiving the target transmission signal on the electronic device; the transmitting target may transmit a signal may be a transceiver on the electronic device.
Step 220, acquiring a coupling emission signal and a coupling reflection signal aiming at the target emission signal;
it is understood that the target transmission signal may be coupled by a coupler on the electronic device during the transmission to the antenna matching circuit, so as to generate the coupled transmission 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 transmitted signal and the coupled reflected signal can be transmitted to a transceiver on an electronic device, and the transceiver can detect the amplitude of the coupled transmitted signal, the amplitude of the coupled reflected signal, and phase difference information of the coupled transmitted signal and the coupled reflected signal.
Step 240, calculating an impedance value of the antenna according to the amplitude of the coupling transmitting signal, the amplitude of the coupling reflecting signal and the phase difference information of the coupling transmitting signal and the coupling reflecting signal.
It is understood that, in the case of a calculation formula based on an antenna impedance value, the impedance value of the antenna may be calculated according to the detected amplitude of the coupled transmission signal and the detected amplitude of the coupled reflection signal, and the phase difference information of the coupled transmission signal and the coupled reflection signal.
In the embodiment of the present application, step 210-240 describes a specific process for obtaining the antenna impedance value.
The specific process of step 210-240 is explained below with reference to the drawings. It is to be understood that the following are merely examples, and are 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 process of obtaining the impedance value of the antenna as described above is explained in detail below 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 double-path 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 comprise a signal receiving port 51.
The two-way coupler 3 may be located between the antenna matching circuit 2 and the radio frequency module 4; the two coupling channels of the dual-path coupler 3 may respectively couple the target transmission 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; both output ports of the two-way coupler 3 may be connected with the signal receiving port 51 in the transceiver 5.
The duplexer 43 in the rf module 4 may act as two filters; in a Frequency Division Duplex (FDD) Frequency band, a duplexer may be used; in the Time Division Duplex (TDD) band, filters may be used. FDD, here, refers to the operation of the uplink (mobile to base station) and downlink (base to mobile) using two separate frequencies (with a certain frequency separation requirement), which operate on symmetrical frequency bands; FDD is suitable for wireless communication systems that provide a single radio frequency channel for each user. TDD is a duplex scheme of a communication system for separating reception and transmission channels in a mobile communication system.
The power amplifier 44 refers to an amplifying device capable of outputting a high power signal. An electronic device usually includes a multi-stage amplifier circuit, and besides a pre-stage amplifier circuit for voltage amplification of a small signal, an output stage of the electronic device generally drives certain loads, such as a speaker, a relay, a motor, a meter, a deflection coil, an antenna, and the like, and the driving of the loads requires certain power, so that a power amplifier circuit capable of amplifying the signal is required. Under the condition that the triodes are conducted in the whole period of the sinusoidal signal, the working states of the power amplifier can be classified into class A, class B, class A and class B, class C and the like. In addition, a wireless PA may refer to a base station power amplifier where wireless signals are transmitted from a base station.
Therefore, the size of 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, and the first preset impedance interval may be an impedance value interval predetermined based on a current intensity region of a first target sub-antenna, where 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 located at a first side of the electronic device and a second portion located at 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 is perpendicular to the second side of the electronic device.
At this time, fig. 4 is a flowchart of an antenna power adjustment method provided in the embodiment of the present application, and as shown in fig. 4, the antenna power adjustment method provided in the embodiment of the present application may include the following steps:
step 410, obtaining an impedance value of a first target sub-antenna on the 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 at a first time, a second time, or a third time on the electronic device.
Step 420, reducing the transmitting power of the first target sub-antenna under the condition that the impedance value of the first target sub-antenna is located in a 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 is close to the strong current area of the first target sub-antenna, at this time, there is a risk that SAR exceeds the standard, and SAR NV reduction may be invoked to limit the maximum transmission power of the first target sub-antenna.
Step 430, keeping the transmission power of the first target sub-antenna unchanged or increasing the transmission power of the first target sub-antenna under the condition that 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 is close to the electric field strong region of the first target sub-antenna, at this time, there is no risk that SAR exceeds standard, the radio frequency conduction NV may be called, and the maximum transmission power of the first target sub-antenna is not limited.
Optionally, in an 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, the first sub-antenna a may include a first portion a1 located at a first side a of the electronic device and a second portion a2 located at 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 at the first side a of the electronic device, and the third sub-antenna C may be located at 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 region of the first sub-antenna a.
The obtaining the impedance value of the antenna in step 110 may include: and acquiring the impedance value of the first sub-antenna A. In step 120, reducing the transmission power of the antenna when the impedance value of the antenna is in the preset impedance interval 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 located in the first preset impedance interval. After step 120, the method may further comprise: and under the condition that the impedance value of the first sub-antenna A is located in the first preset impedance interval, reducing the transmission power of the second sub-antenna B, and keeping the transmission power of the third sub-antenna C unchanged or increasing the transmission 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 device 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 step 430, when the impedance value of the first target sub-antenna is outside the first preset impedance interval, the keeping 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 transmission power of the first sub-antenna unchanged or increasing the transmission power of the first sub-antenna, and keeping the transmission power of the second sub-antenna unchanged or increasing the transmission power of the second sub-antenna. After step 430, the method may further comprise: 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, by keeping the transmission power of the first sub-antenna and the second sub-antenna unchanged, or increasing the transmission power of the first sub-antenna and the second sub-antenna, and decreasing the transmission power of the third sub-antenna, it can be determined that the movable object is close to the second side b of the electronic device.
For ease of understanding, the movable object is taken as a human body, and the following is exemplified here:
as shown in fig. 5, the upper right corner of the electronic device may be used as a boundary for dividing the current intensity region and the electric field intensity region of the first sub-antenna a, a first portion a1 (i.e., the top region of the electronic device) of the first sub-antenna a located on the first side a of the electronic device is the current intensity region of the first sub-antenna a, and a second portion a2 (i.e., the right region of the electronic device) of the first sub-antenna a located on the second side b of the electronic device is the electric field intensity region of the first sub-antenna a; at this time, the first part a1 of the first sub-antenna a has a risk of SAR overproof, and the second part a2 has no risk of SAR overproof.
The current strong region and the electric field strong region 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 the SAR overproof risk exists 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 on the second side b of the electronic equipment (namely the right side area of the electronic equipment), and the SAR overproof risk exists in the right side area of the electronic equipment; in addition, the current strong areas of all the three sub-antennas cover the back area of the electronic equipment, so that the back area of the electronic equipment has the risk of exceeding SAR.
In the case of setting the impedance section of the antenna when the human body approaches the first part a1 of the first sub-antenna a to a first preset impedance section:
when a human body approaches to the top area, namely the first side a, of the electronic equipment, 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, both the first sub-antenna A and the second sub-antenna B in the top area have the risk of SAR exceeding, and SAR reduction NV of the first sub-antenna A and the second sub-antenna B and radio frequency conduction NV of the third sub-antenna C can be called; only the maximum transmission power of the first sub-antenna a and the second sub-antenna B is limited, and the maximum transmission power of the third sub-antenna C is not limited.
When a human body approaches to the right side area, namely the second side b, of the electronic equipment, the impedance value of the first sub-antenna A changes but is not located in the first preset antenna impedance interval; judging that the human body is close to the right area of the electronic equipment, wherein the first sub-antenna A of the right area has no SAR standard exceeding risk, and the third sub-antenna C has SAR standard exceeding risk; the radio frequency conducted NV of the first sub-antenna a and the second sub-antenna B and the reduced SAR NV of the third sub-antenna C may be invoked; the maximum transmission power of the first sub-antenna a and the second sub-antenna B is not limited, and only the maximum transmission 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 the specific area of the movable object close to the antenna, so that the antenna transmitting power is more accurately reduced, and the influence of SAR reduction on the communication quality is reduced.
Optionally, in an 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, the first sub-antenna a may include a first portion a1 located at a first side a of the electronic device and a second portion a2 located at 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 at the first side a of the electronic device, the third sub-antenna C may include a first portion C1 located at the second side B of the electronic device and a second portion C2 located at a third side C of the electronic device, 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, the first side a and the third side c of the electronic device are opposite; 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 region of the first sub-antenna a. The preset impedance interval may further include a second preset impedance interval, and the second preset impedance interval may be an impedance value interval predetermined based on a 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, reducing the transmission power of the antenna when the impedance value of the antenna is in the preset impedance interval 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 reducing the transmitting power of the third sub-antenna C under the condition that the impedance value of the third sub-antenna C is located in the second preset impedance interval. After step 120, the method may further comprise: 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 located 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 device 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: when the impedance value of the third sub-antenna is in the second preset impedance interval, reducing the transmission power of the third sub-antenna, and keeping the transmission power of the first sub-antenna and the transmission power of the second sub-antenna unchanged or increasing the transmission power of the first sub-antenna and the transmission power of the second sub-antenna; under the condition that the impedance value of the first sub-antenna is located outside the first preset impedance interval, keeping the transmission power of the first sub-antenna unchanged or increasing the transmission power of the first sub-antenna, and keeping the transmission power of the second sub-antenna unchanged or increasing the transmission power of the second sub-antenna; and under the condition that the impedance value of the third sub-antenna is located outside the second preset impedance interval, keeping the transmission power of the third sub-antenna unchanged or increasing the transmission power of the third sub-antenna.
For ease of understanding, the movable object is taken as a human body, and the following is exemplified here:
as shown in fig. 6, the position of the upper right corner of the electronic device may be used as a boundary for dividing the current strong region and the electric field strong region of the first sub-antenna a; a first part a1 (i.e. the top area of the electronic device) of the first sub-antenna a located at the first side a of the electronic device is a current intensity region of the first sub-antenna a, and a second part a2 (i.e. the right area of the electronic device) of the first sub-antenna a located at the second side b of the electronic device is an electric field intensity region of the first sub-antenna a; at the moment, the SAR exceeding risk exists in the top surface area of the electronic equipment of the first sub-antenna A, and the SAR exceeding risk does not exist in the right side area of the electronic equipment.
The lower right corner of the electronic device can be used as a dividing boundary of the current strong region and the electric field strong region of the third sub-antenna C; a second portion C2 (i.e., the bottom area of the electronic device) of the third sub-antenna C located at the third side C of the electronic device is an electric field strong region of the third sub-antenna C, and a first portion C1 (i.e., the right area of the electronic device) of the third sub-antenna C located at the second side b of the electronic device is a current strong region of the third sub-antenna C; at the moment, the third sub-antenna C has no risk of exceeding the SAR in the bottom area of the electronic equipment, and has the risk of exceeding the SAR in the right area of the electronic equipment.
The current strong region and the electric field strong region 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 the SAR overproof risk exists in the top area of the electronic equipment; in addition, the current strong areas of all the three sub-antennas cover the back area of the electronic equipment, so that the back area of the electronic equipment has the risk of exceeding SAR.
In the case of setting an antenna impedance section corresponding to the first portion a1 where the human body approaches the first sub-antenna a as a first preset impedance section and an antenna impedance section corresponding to the first portion C1 where the human body approaches the third sub-antenna C as a second preset impedance section:
when a human body approaches to 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 the human body is close to the top area of the electronic equipment, and determining that SAR overproof risks exist in a first sub-antenna A and a second sub-antenna B of 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 conducted NV without limiting the maximum transmit power of the third sub-antenna C.
When the human body approaches to the bottom area of the electronic device, 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; judging that the human body is close to the bottom area of the electronic equipment, wherein the bottom area is an electric field strong area of the third sub-antenna C and has no SAR standard exceeding risk; at this time, the three sub-antennas all call the radio frequency conduction NV, and the three sub-antennas do not limit the maximum transmitting power.
When a human body approaches to the right area of the electronic equipment, namely the second side b, the impedance value of the first sub-antenna A changes but is not positioned in the first preset impedance interval, and the impedance value of the third sub-antenna C changes and is positioned in the second preset impedance interval; judging that the human body is close to the right area of the electronic equipment; the first sub-antenna A has no SAR standard exceeding risk in the right area of the electronic equipment, and the third sub-antenna C has SAR standard exceeding risk in the right area of the electronic equipment; at the moment, the first sub-antenna A and the second sub-antenna B call the radio frequency conducted NV, and the third sub-antenna C calls the reduced SAR NV; only the maximum transmission power of the third sub-antenna C is limited and the maximum transmission power of the first sub-antenna a and the second sub-antenna B is 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 that the SAR exceeds the standard, so that the SAR NV needs to be reduced, and the maximum transmitting power needs to be limited.
When a user holds the mobile phone with both hands across the screen and fingers do not contact the right area of the mobile phone, the impedance value of the first sub-antenna A changes and is located in a first preset impedance interval, and the impedance value of the third sub-antenna C changes but 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 the moment, both the first sub-antenna A and the second sub-antenna B have SAR exceeding risks, and the third sub-antenna C has no SAR exceeding risks; the first sub-antenna A and the second sub-antenna B call SAR NV, and the third sub-antenna C calls radio frequency conducted NV; the maximum transmission power of the first sub-antenna a and the second sub-antenna B is limited, and the maximum transmission power of the third sub-antenna C is not limited.
Therefore, the specific area of the movable object close to the antenna can be further subdivided by simultaneously detecting the change of the impedance values of the plurality of antennas, so that the transmitting power of the antenna is more accurately reduced, and the influence of SAR reduction on the communication quality is reduced.
The method for adjusting the antenna power provided by the embodiment of the application can judge the specific area of the movable object close to the antenna by further judging whether the antenna impedance value is located in the first preset impedance interval or not, and can further subdivide the specific area of the movable object close to the antenna by detecting the impedance value change of a plurality of antennas simultaneously, so that the antenna transmitting power is reduced more accurately, and the influence of SAR reduction on the communication quality is reduced.
Fig. 7 is a block diagram of an antenna power adjustment apparatus according to an embodiment of the present disclosure. Referring to fig. 7, an apparatus 700 for adjusting antenna power provided in an embodiment of the present application may include: an acquisition module 710 and a processing module 720.
The obtaining module 710 is configured to obtain an impedance value of the antenna;
the processing module 720 is configured to reduce the transmission power of the antenna when the impedance value of the antenna is in a preset impedance interval;
the preset impedance interval is an impedance value interval which is predetermined based on a current intensity area of the antenna.
The antenna power adjusting device provided by the embodiment of the application obtains the 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 which is 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 an SAR sensor, and the problem that the power adjustment mode based on the SAR sensor in the prior art has higher cost can be solved.
Optionally, in an embodiment, the obtaining module 710 may be 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, taking 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 at a first side of the electronic device and a second portion located at 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 at the first side of the electronic device, and the third sub-antenna may be located at the second side of the electronic device; the first portion of the first sub-antenna may correspond to a current strong region of the first sub-antenna, and the second portion of the first sub-antenna may correspond to an electric field strong region of the first sub-antenna; the preset impedance interval may include a first preset impedance interval, and the first preset impedance interval may be an impedance value interval predetermined based on a current intensity region of the first sub-antenna; the obtaining module 710 may be specifically configured to: acquiring an impedance value of the first sub-antenna; the processing module 720 may be 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 720 may be further configured to: and under the condition that the impedance value of the first sub-antenna is located in the first preset impedance interval, reducing the transmission power of the second sub-antenna, and keeping the transmission power of the third sub-antenna unchanged or increasing the transmission 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 at a first side of the electronic device and a second portion located at 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 at a first side of the electronic device, the third sub-antenna may include a first portion located at a second side of the electronic device and a second portion located at 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 to the third side; the first portion of the first sub-antenna may correspond to a current strong region of the first sub-antenna, and the second portion of the first sub-antenna may correspond to an electric field strong region of the first sub-antenna; the first portion of the third sub-antenna may correspond to a current strong region of the third sub-antenna, and the second portion of the third sub-antenna may correspond to an electric field strong 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 region of the first sub-antenna, and the second preset impedance interval may be an impedance value interval predetermined based on a current intensity region of the third sub-antenna; the obtaining module 710 may be specifically 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 be 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 reducing the transmitting power of the third sub-antenna under the condition that the impedance value of the third sub-antenna is located in the second preset impedance interval; the processing module 720 may be 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 located in the first preset impedance interval.
It should be noted that the antenna power adjusting apparatus provided in the embodiments of the present application corresponds to the above-mentioned antenna power adjusting method. For related content, reference may be made to the above description of the method for adjusting the antenna power, which is not described herein again.
In addition, as shown in fig. 8, an 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 the program may be executed by the processor 820 to implement any one of the above-described antenna power adjustment methods. For example, the program when executed by the processor 820 implements the following process: 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 which is 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 an SAR sensor, and the problem that the power adjustment mode based on the SAR sensor in the prior art has higher cost can be solved.
Embodiments of the present application further provide a readable storage medium, on which a program is stored, where the program, when executed, implements any of the above-described antenna power adjustment methods. For example, the program when executed by the processor 820 implements the following process: 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 which is 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 an SAR sensor, and the problem that the power adjustment mode based on the SAR sensor in the prior art has higher cost can be solved.
Fig. 9 is a schematic diagram of a hardware structure of an electronic device implementing various embodiments of the present invention.
The electronic device 900 includes, but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, a processor 910, and a power supply 911. Those skilled in the art will appreciate that the electronic device configuration shown in fig. 9 does not constitute a limitation of the electronic device, and that the electronic device may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the electronic device includes, 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.
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 a process for: 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 memory may store the antenna impedance value at each time point every time the first processor calculates the antenna impedance value at each time point; the second processor may read a first antenna impedance value corresponding to the first time point and a second antenna impedance value corresponding to the second time point stored in the first memory, and compare the first antenna impedance value and the second antenna impedance value; 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 to perform 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 to perform 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 a second antenna impedance value corresponding to the second time point is not located in the preset impedance interval, the movable object is judged not to be close to a current strong area of the antenna, and no SAR standard exceeding risk exists; under the condition that a second antenna impedance value corresponding to the second time point is located in the preset impedance interval, the movable object is judged to be close to a current strong area of the antenna, and the risk that SAR exceeds the standard possibly exists; the third processor may transmit the determination result to the fourth processor; the fourth processor may transmit a control signal to a 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 judged not to be close to the strong current area of the antenna, calling the radio frequency conduction NV without limiting the maximum transmitting power of the antenna; and when the movable object is judged to be close to the strong current area of the antenna, the SAR NV reduction is called, 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 impedance value of the antenna and further judging whether the impedance value of the antenna is positioned in the preset impedance interval, so that the transmitting power of the antenna is more accurately reduced, and the influence of SAR reduction 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 sending signals during a message transmission and reception process or a call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 910; in addition, the uplink data is transmitted to the base station. Generally, 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 can also communicate with a network and other devices through a wireless communication system.
The electronic device provides wireless broadband internet access to the user via the network module 902, such as assisting the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.
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 provide audio output related to a specific function performed by the electronic device 900 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 903 includes a speaker, a buzzer, a receiver, and the like.
The input unit 904 is used to receive audio or video signals. The input Unit 904 may include a Graphics Processing Unit (GPU) 9041 and a microphone 9042, and the Graphics processor 9041 processes image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 906. The image frames processed by the graphic processor 9041 may be stored in the memory 909 (or other storage medium) or transmitted via the radio frequency unit 901 or the network module 902. The microphone 9042 can receive sounds and can process such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 901 in case of the phone call mode.
The electronic device 900 also includes at least one sensor 905, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 9061 according to the brightness of ambient light, and the proximity sensor may turn off the display panel 9061 and/or the backlight when the electronic device 900 is moved to the ear. As one type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of an electronic device (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 905 may also 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 in detail herein.
The display unit 906 is used to display information input by the 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 (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 907 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the electronic device. Specifically, the user input unit 907 includes a touch panel 9071 and other input devices 9072. The touch panel 9071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 9071 (e.g., operations by a user on or near the touch panel 9071 using a finger, a stylus, or any other suitable object or accessory). The touch panel 9071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction 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 sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 910, receives a command from the processor 910, and executes the command. In addition, the touch panel 9071 may be implemented by using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 907 may include other input devices 9072 in addition to the touch panel 9071. Specifically, the other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, and the like), a track ball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 9071 may be overlaid on the display panel 9061, and when the touch panel 9071 detects a touch operation on or near the touch panel 9071, the touch panel is transmitted to the processor 910 to determine the type of the touch event, and then the processor 910 provides a corresponding visual output on the display panel 9061 according to the type of the touch event. Although in fig. 9, the touch panel 9071 and the display panel 9061 are two independent components to implement 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 for connecting an external device to the electronic apparatus 900. For example, the external device may include a wired or wireless headset port, an external power supply (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 the 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, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, 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, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 910.
The electronic device 900 may further include a power supply 911 (e.g., a battery) for supplying power to various components, and preferably, the power supply 911 may be logically connected to the processor 910 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system.
In addition, the electronic device 900 includes some functional modules that are not shown, and thus are not described in detail herein.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement any one of the methods for adjusting antenna power provided in the embodiment of the present application, and can achieve the same technical effect, and in order to avoid repetition, the details are not repeated here.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, 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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. An antenna power adjustment method applied to an electronic device, wherein the electronic device includes an antenna, the method comprising:
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 which is predetermined based on a current intensity area of the antenna.
2. The method of claim 1, wherein 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, taking 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, wherein the first sub-antenna comprises 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, wherein the first portion and the second portion are in contact, wherein the second sub-antenna is located on the first side of the electronic device, and wherein the third sub-antenna is located on the second side of the electronic device; the first part of the first sub-antenna corresponds to a current strong area of the first sub-antenna, and the second part of the first sub-antenna corresponds to an electric field strong area 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 predetermined based on a current intensity area of the first sub-antenna;
the obtaining of the impedance value of the antenna includes: acquiring an impedance value of the first sub-antenna;
the reducing the transmission power of the antenna under the condition that the impedance value of the antenna is in a preset impedance interval comprises: 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 following steps: and under the condition that the impedance value of the first sub-antenna is located in the first preset impedance interval, reducing the transmission power of the second sub-antenna, and keeping the transmission power of the third sub-antenna unchanged or increasing the transmission 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, wherein the first sub-antenna comprises a first portion on a first side of the electronic device and a second portion on a second side of the electronic device, wherein the first portion of the first sub-antenna is in contact with the second portion of the first sub-antenna, wherein the second sub-antenna is on the first side of the electronic device, wherein the third sub-antenna comprises a first portion on the second side of the electronic device and a second portion on a third side of the electronic device, wherein the first portion of the third sub-antenna is in contact with the second portion of the third sub-antenna, and wherein the first side of the electronic device is opposite to the third side; the first part of the first sub-antenna corresponds to a current strong area of the first sub-antenna, and the second part of the first sub-antenna corresponds to an electric field strong area 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 predetermined based on a current intensity area of the first sub-antenna, and the second preset impedance interval is an impedance value interval which is predetermined based on a current intensity area of the third sub-antenna;
the obtaining of 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 transmission power of the antenna under the condition that the impedance value of the antenna is in a preset impedance interval comprises: 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 reducing the transmitting power of the third sub-antenna under the condition that the impedance value of the third sub-antenna is located in the second preset impedance interval;
the method further comprises the following steps: and reducing the transmitting power of the second sub-antenna under the condition that the impedance value of the first sub-antenna is located in the first preset impedance interval.
5. An antenna power adjusting device applied to an electronic device, the electronic device including an antenna, the device comprising:
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 in a preset impedance interval;
the preset impedance interval is an impedance value interval which is predetermined based on a current intensity area of the antenna.
6. The apparatus of claim 5, wherein the obtaining 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, taking 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, wherein the first sub-antenna comprises 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, wherein the first portion and the second portion are in contact, wherein the second sub-antenna is located on the first side of the electronic device, and wherein the third sub-antenna is located on the second side of the electronic device; the first part of the first sub-antenna corresponds to a current strong area of the first sub-antenna, and the second part of the first sub-antenna corresponds to an electric field strong area 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 predetermined 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 located in the first preset impedance interval, reducing the transmission power of the second sub-antenna, and keeping the transmission power of the third sub-antenna unchanged or increasing the transmission 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, wherein the first sub-antenna comprises a first portion on a first side of the electronic device and a second portion on a second side of the electronic device, wherein the first portion of the first sub-antenna is in contact with the second portion of the first sub-antenna, wherein the second sub-antenna is on the first side of the electronic device, wherein the third sub-antenna comprises a first portion on the second side of the electronic device and a second portion on a third side of the electronic device, wherein the first portion of the third sub-antenna is in contact with the second portion of the third sub-antenna, and wherein the first side of the electronic device is opposite to the third side; the first part of the first sub-antenna corresponds to a current strong area of the first sub-antenna, and the second part of the first sub-antenna corresponds to an electric field strong area 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 predetermined based on a current intensity area of the first sub-antenna, and the second preset impedance interval is an impedance value interval which is predetermined based on a 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 reducing the transmitting power of the third sub-antenna under the condition that the impedance value of the third sub-antenna is located in the second preset impedance interval;
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 located in the first preset impedance interval.
9. An electronic device, comprising a memory and a processor, the memory having stored thereon a program that, when executed by the processor, performs the method of any of claims 1-4.
10. A readable storage medium, characterized in that it stores thereon a program which, when executed, implements the method according to any one 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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