CN114843753A

CN114843753A - Antenna device, control method thereof and electronic equipment

Info

Publication number: CN114843753A
Application number: CN202210511470.9A
Authority: CN
Inventors: 彭博
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-08-02

Abstract

The embodiment discloses an antenna device, a control method thereof and electronic equipment, wherein the antenna device comprises a switch component and an antenna, one antenna is connected with one switch component, one switch component is connected with a first resonance path and a second resonance path, the first resonance path supports the antenna to resonate in a working frequency band, and the second resonance path supports the antenna to resonate in a non-working frequency band; wherein: the switch component selectively conducts the first resonance path or the second resonance path to enable the antenna to resonate in an operating frequency band and a non-operating frequency band in a unit time in a time-sharing mode, and the average radio frequency power of the antenna in the unit time is lower than a preset power threshold value. By switching the resonant frequency, the average SAR is guaranteed not to exceed the standard in unit time.

Description

Antenna device, control method thereof and electronic equipment

Technical Field

The embodiment of the disclosure relates to but is not limited to the technical field of antenna radio frequency, and in particular relates to an antenna device, a control method thereof and electronic equipment.

Background

With the development of mobile communication technology, people increasingly use mobile terminals, especially mobile phones. However, these mobile terminals generate electromagnetic radiation during communication, and the electromagnetic radiation is a complex electromagnetic wave that transfers energy with time changes of electric and magnetic fields perpendicular to each other. Human life activities include a series of bioelectric activities that are very sensitive to environmental electromagnetic waves, and thus, electromagnetic radiation may affect and damage the human body.

In order to evaluate the influence degree of electromagnetic radiation of electronic devices on human body, the index of Specific Absorption Rate (SAR), which is the electromagnetic radiation energy absorbed by a substance with a unit mass per unit time, is introduced. Taking electronic device radiation as an example, SAR refers to the rate at which radiation is absorbed by the soft tissue of the user, and the lower the SAR value, the less the amount of radiation absorbed by the soft tissue, and the less the effect on the human body.

The SAR and the radio frequency emission power are in a direct proportion relation, the higher the power is, the higher the SAR value is, in order to ensure that the SAR absorbed by the soft tissue of a user is qualified, the conventional means for solving the SAR standard exceeding of terminal manufacturers such as a mobile phone and the like is to reduce the radio frequency power (power back-off), but the communication capacity of electronic equipment and a base station can be reduced.

Disclosure of Invention

The embodiment of the disclosure provides an antenna device, a control method thereof and electronic equipment, which ensure the compliance of specific absorption rate.

In one aspect, the disclosed embodiments provide an antenna apparatus, a switch component and an antenna, where one antenna is connected to one switch component, and one switch component is connected to a first resonance path and a second resonance path, where the first resonance path supports the antenna to resonate in an operating frequency band, and the second resonance path supports the antenna to resonate in a non-operating frequency band; wherein:

the switch component selectively conducts the first resonance path or the second resonance path to enable the antenna to resonate in an operating frequency band and a non-operating frequency band in a unit time in a time-sharing mode, and the average radio frequency power of the antenna in the unit time is lower than a preset power threshold value.

On the other hand, an embodiment of the present disclosure further provides a method for controlling an antenna apparatus, where the antenna apparatus is any one of the antenna apparatuses in the foregoing embodiments, and the method for controlling the antenna apparatus includes:

and selectively conducting the first resonance path or the second resonance path to enable the antenna to resonate in an operating frequency band and a non-operating frequency band in a time division manner within unit time, so that the average radio frequency power of the antenna within the unit time is lower than a preset power threshold.

In another aspect, an embodiment of the present disclosure further provides an electronic device including the antenna apparatus.

According to the embodiment of the disclosure, the switch component switches the resonance path to enable the antenna to resonate in the working frequency band and the non-working frequency band in time division within unit time, so that the radiation power of signals can be changed on the premise of not changing the total output power, and dynamic adjustment of power is realized. By dynamically adjusting the transmitting power, the average SAR is guaranteed not to exceed the standard in a time window, the communication quality and the data throughput rate are guaranteed, and better experience is provided for users.

Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the disclosure. Other advantages of the disclosure may be realized and attained by the instrumentalities and methods described in the specification, claims, and drawings.

Drawings

The accompanying drawings are included to provide an understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure. The shapes and sizes of the various elements in the drawings are not to be considered as true proportions, but are merely intended to illustrate the present disclosure.

FIG. 1 is a diagram of SAR values for a mobile terminal antenna;

fig. 2 is a schematic structural diagram of an antenna apparatus according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of another antenna device according to an embodiment of the present disclosure;

FIG. 4 is a graph showing that the average power per unit time is less than Plimit;

fig. 5 is a schematic structural diagram of another antenna device according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of another antenna device according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of an antenna device according to an exemplary embodiment of the present disclosure;

fig. 8 is a graph of voltage standing wave ratios at different frequency bands.

Detailed Description

The present disclosure describes embodiments, but the description is illustrative rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the embodiments described in the present disclosure. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or instead of any other feature or element in any other embodiment, unless expressly limited otherwise.

The present disclosure includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements of the present disclosure that have been disclosed may also be combined with any conventional features or elements to form unique inventive aspects as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive aspects to form yet another unique inventive aspect, as defined by the claims. Thus, it should be understood that any features shown and/or discussed in this disclosure may be implemented individually or in any suitable combination. Accordingly, the embodiments are not limited except as by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.

Further, in describing representative embodiments, the specification may have presented the method and/or process as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps set forth herein, the method or process should not be limited to the particular sequence of steps described. Other orders of steps are possible as will be understood by those of ordinary skill in the art. Therefore, the particular order of the steps set forth in the specification should not be construed as limitations on the claims. Further, the claims directed to the method and/or process should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the embodiments of the present disclosure.

Because the frequency bands supported by the current mobile phone are more and more, and the full-face screen and the multiple lenses are popularized, the antenna environment is more and more severe, and because the number of the antennas is limited, one antenna may need to support a plurality of frequency bands, so that different resonance points need to be obtained by adjusting an antenna switch to meet the requirement that one antenna supports multiple frequency bands.

Specific Absorption Rate (SAR) is an international general index for evaluating the influence of radio waves on human bodies, belongs to an safety standard, and is strictly supervised by regulatory agencies of various countries (regions) all over the world. Two standards currently in common use internationally are 1.6W/Kg by the Federal Communications Commission (FCC) and 2.0W/Kg by the European Union. For electromagnetic wave signals with different frequencies, the requirements of SAR regulatory agencies in various regions are slightly different, and for radio frequency signals below 3GHz, taking FCC as an example, the average SAR value within a time period of 100 seconds is required not to exceed the upper limit requirement of 1.6W/Kg. Thus, the real-time SAR value can exceed 1.6W/Kg, and only the average value in the time window (e.g. 100 ms of FCC) required by the regulation is ensured to be controlled within the range required by the regulation.

For a given conducted power and a given antenna, the location of the hot spot of the SAR (i.e., the SAR value maximum) is determined, the distribution of the SAR (i.e., the gradient map of the SAR) is fixed, and the maximum SAR value is also determined. By adjusting the magnitude of the conducted power, the position of the hot spot of the SAR is fixed, but the value of the SAR changes (the SAR value is in direct proportion to the power). Fig. 1 is a distribution diagram of SAR values of an antenna of a mobile terminal, in which a solid line represents the antenna, a dotted line represents the distribution of SAR values, the SAR values on the same dotted circle are the same, the larger the dotted circle is, the lower the SAR value is, the lower the radio frequency power is, the smaller the dotted circle is, the higher the SAR value is, the higher the radio frequency power is, and the higher the SAR hotspot value is (the highest hotspot value at the center of the dotted circle). The requirement of the regulatory body is that the point with the highest SAR value does not exceed the requirements of the regulations, such as: FCC 1.6W/Kg, CE2.0W/Kg.

To this end, the present disclosure provides an antenna apparatus, as shown in fig. 2, including a switch component 20 and an antenna 30, where one antenna 30 is connected to one switch component 20, one switch component 20 connects two or more resonance paths but can only conduct one resonance path at the same time, one resonance path supports the antenna to resonate in one frequency band, and the frequency band supported by each resonance path is different, for example, one switch component connects a first resonance path and a second resonance path, the first resonance path supports the antenna to resonate in an operating frequency band, and the second resonance path supports the antenna to resonate in a non-operating frequency band, where:

the switch component 20 selectively switches on the first resonant path or the second resonant path to make the antenna resonate in the working frequency band and the non-working frequency band in time division within a unit time, so that the average radio frequency power of the antenna within the unit time is lower than a preset power threshold.

According to the embodiment of the disclosure, the switch component switches the resonance path to enable the antenna to resonate in the working frequency band and the non-working frequency band in time division within unit time, so that the radiation power of signals can be changed on the premise of not changing the total output power, and dynamic adjustment of power is realized. By dynamically adjusting the transmitting power, the average radio frequency power of the antenna is lower than a power threshold value in unit time, the average SAR cannot exceed the standard, the communication quality and the data throughput rate are ensured, and better experience is provided for users.

In an exemplary embodiment, the antenna device may include N groups of switch components and antennas, each group including one switch component and one antenna, where N is a positive integer greater than or equal to 1

In an exemplary embodiment, the one switch assembly may be connected to a plurality of the second resonance paths, each of which supports a different frequency band.

In an exemplary embodiment, the switch component may be, for example, a tuning switch, and the change in the resonant frequency of the antenna may be achieved by connecting different matching circuits (e.g., capacitors and/or inductors) by changing the impedance of the antenna (e.g., changing the capacitance and/or inductance values). The switch assembly can be correspondingly connected with two or more than two resonance paths, but only one resonance path can be conducted with the antenna, one resonance path in the multiple resonance paths connected with the switch assembly is used as a working resonance path of the antenna, the other resonance path or paths are non-working resonance paths, and when the switch assembly is switched to the non-working resonance path, the antenna resonates in a non-working frequency band. When the switch component corresponds to the three resonant paths, one resonant path is a working resonant path, and the other two resonant paths are non-working resonant paths, and the switch component switches the resonant paths according to the control signal so that the antenna resonates in a non-working frequency band by switching to a fixed one of the two non-working resonant paths at each time, or can switch to different non-working resonant paths according to average power.

In an exemplary embodiment, the switching component 20 switches the resonant path to make the antenna resonate in the working frequency band and the non-working frequency band in time division in a unit time, and may be that, in the unit time, the switching component 20 periodically switches between the resonant path corresponding to the working frequency band (first resonant path) and the resonant path corresponding to the non-working frequency band (second resonant path); alternatively, the switching member 20 may be periodically switched between the resonant path corresponding to the operating band and the resonant path corresponding to the non-operating band in a unit time.

In an exemplary embodiment, the switching component 20 switches the resonant path to make the antenna resonate in the operating frequency band and the non-operating frequency band in time division in a unit time, and a total time for the switching component 20 to switch on the first resonant path in the unit time may be greater than or equal to or less than a total time for the switching component to switch on the second resonant path in the unit time.

In short, the time for the switch component 20 to switch to the resonant path corresponding to the non-operating frequency band may be determined according to the average radio frequency power of the antenna in unit time, when the antenna component switches the antenna to the resonant path corresponding to the non-operating frequency band, the antenna efficiency is poor, the radiation power of the antenna is low, so that the average radio frequency power may be reduced, and the SAR value may be reduced.

For example, the time for switching to the resonant path corresponding to the non-operating frequency band may be determined according to the distance between the user and the electronic device including the antenna device, for example, when the user is close to the antenna device, the time for switching to the resonant path corresponding to the non-operating frequency band may be prolonged (including a single time extension or a total time extension by frequent switching) in order to reduce the SAR value.

For example, the determination may be made according to a frequency band supported by a resonant path, for example, the antenna currently operates in a first frequency band, the switch component corresponds to the resonant path supporting the first frequency band and also corresponds to the resonant path supporting a second frequency band, the determination may be made according to a relationship between the first frequency band and the second frequency band, if the second frequency band is closer to the first frequency band (for example, a part of the second frequency band is overlapped or is not overlapped, but a difference between nearest frequencies is within a preset range), after the second frequency band is switched, the radiation power is reduced to a limited extent, and then the time for switching to the second frequency band needs to be extended, so as to ensure that the average radio frequency power is lower than a preset power threshold.

In an exemplary embodiment, as shown in fig. 3, the antenna apparatus may further include a processor 10, where the processor 10 may be configured to, after receiving the trigger signal, obtain a current operating frequency band of the antenna, determine a resonant path that the switch component is turned on, and send a control signal for switching the resonant path to the switch component. In this embodiment, the processor receives the trigger signal and sends a control signal to the switch component to control the resonant path switched by the switch component, so that the control is more accurate.

In an exemplary embodiment, the trigger signal may be a sensing signal transmitted by a sensor, and the processor may be connected to the sensor, and the sensor is configured to transmit the trigger signal to the processor when detecting that a human body approaches the antenna device. The sensor may be, for example, a distance sensor. In other embodiments, in addition to the triggering by the sensor, the triggering may be performed by a software application (app on the electronic device), for example, when the electronic device where the antenna apparatus is located detects that a user opens a certain application or uses a certain function (corresponding function module), the software application or the function module sends a trigger signal to the processor, for example, when there is an incoming call, the trigger signal is triggered by the call module, or when there is a WeChat voice call, the trigger signal is triggered by the WeChat application.

In an exemplary embodiment, as shown in fig. 3, the switch assembly 20 may be coupled to a radio frequency transceiver configured to output radio frequency signals, and the processor may be separate or may be integrated within the radio frequency transceiver. When the processor is integrated inside the rf transceiver, the sensor may be connected to the processor through a baseband unit (Base band), that is, a sensing signal of the sensor may be sent to the baseband unit first and then sent to the processor in the rf transceiver by the baseband unit.

In an exemplary embodiment, the antenna device may further include a memory, where the memory is connected to the processor and is configured to store a frequency band and resonance information corresponding to the resonance path, so that the processor may query a frequency band that the antenna device can support and a corresponding resonance parameter (that is, a corresponding parameter when a resonance point of the antenna is set to a certain frequency band, for example, an impedance value, and the like), and after the processor obtains a current operating frequency band of the antenna, the processor may determine, according to a content stored in the memory, which path the switch component needs to be switched to, and further send a control signal to the switch component.

The embodiment of the disclosure can change the radiation power of the signal by switching the resonant frequency on the premise of not changing the total output power, thereby realizing dynamic adjustment of the power. By dynamically adjusting the transmission power it is ensured that the average SAR does not exceed a certain time window, e.g. the antenna may transmit at a power higher than Plimit (maximum power required to meet SAR limits) for certain time periods and at a power lower than Plimit for certain time periods, but the average power within a certain time window is less than or equal to Plimit, as shown in fig. 4. Therefore, the radiation power of the antenna can be reduced under the condition that the total output power is not changed, the reduction of SAR is realized, the communication quality and the data throughput rate are ensured, and better experience is provided for users.

The electronic device may also be referred to as a terminal, and may be a mobile phone, a tablet computer, and the like.

In an exemplary embodiment, as shown in fig. 5, the antenna apparatus may further include a first amplifier 50, an input port of the first amplifier 50 is connected to the first output port of the radio frequency transceiver, an output port of the first amplifier 50 is connected to the switch component 20, the first amplifier 50 is configured to amplify the radio frequency signal output by the radio frequency transceiver, and the first amplifier 50 may be a power amplifier, for example. In the figure 40 is a sensor connected to the processor 10.

In an exemplary embodiment, as shown in fig. 6, the antenna apparatus may further include a second amplifier 60, an input port of the second amplifier 60 being connected to the switch assembly 20, an output port of the second amplifier 60 being connected to an input port of the radio frequency transceiver, the second amplifier 60 being configured to amplify signals received by the antenna 30, and the second amplifier 60 may be, for example, a Low Noise Amplifier (LNA).

The above embodiments are only described by way of example with reference to the inclusion of one antenna, and in other embodiments, the antenna apparatus may include a plurality of antennas, each antenna being connected to one switching element.

The embodiment of the present disclosure further provides an antenna apparatus control method, which is applicable to the antenna apparatus described above, and includes the following steps:

and selectively conducting the first resonance path or the second resonance path to enable the antenna to resonate in an operating frequency band and a non-operating frequency band in a time-sharing manner within unit time, so that the average radio frequency power of the antenna within the unit time is lower than a preset power threshold.

For a communication device, the radiated power is higher when the antenna operates at a first resonant frequency within a network frequency band in which the electronic device operates, and the radiated power is relatively lower when the antenna operates at a second resonant frequency not within the network frequency band in which the electronic device operates. According to the antenna, the antenna is enabled to resonate in the working frequency band and the non-working frequency band in time division in unit time by switching the resonant path, the radiation power of signals can be reduced on the premise that the total output power is not changed, the average power is reduced by reducing the radiation power, the SAR value is smaller than a standard value in a unit time range, the communication quality and the data throughput rate are guaranteed, and better experience is brought to users.

In an exemplary embodiment, the selectively turning on the first resonance path or the second resonance path may be: and when detecting that the human body approaches the antenna device, switching and conducting the second resonant path to enable the antenna to resonate in a non-working frequency band. By switching the resonant path when the human body is detected to approach the antenna device, the radiation power of the signal is reduced, the SAR value is reduced, and the influence of radiation on the human body can be reduced.

In an exemplary embodiment, the selectively turning on the first resonance path or the second resonance path may cause the antenna to resonate in the operating frequency band and the non-operating frequency band in time division per unit time, where:

the switch component periodically switches between the resonant path corresponding to the working frequency band (first resonant path) and the resonant path corresponding to the non-working frequency band (second resonant path) in unit time; or, in unit time, the switch component performs aperiodic switching between the resonant path corresponding to the working frequency band and the resonant path corresponding to the non-working frequency band;

the total time for the switch assembly to switch to the first resonance path in the unit time is greater than or equal to or less than the total time for the switch assembly to switch to the second resonance path

In summary, the time for the switching component to switch to the resonant path corresponding to the non-operating frequency band may be determined according to the average rf power of the antenna during the time period.

By switching the resonant frequency, the radiation power of the signal can be changed on the premise of not changing the total output power, dynamic adjustment of the power is realized, and the average power in a certain time window (namely unit time) is ensured to be less than or equal to Plimit, so that the SAR is reduced under the condition of unchanged total output power, and the communication quality of equipment is ensured. The time window may be, for example, a unit time period of a safety standard.

The embodiments of the present disclosure are explained below by an application example, and fig. 7 is a schematic diagram of the application example. This example is illustrated by taking a processor integrated in a radio frequency transceiver as an example, and in this example, three paths are taken as an example for connection, each path is used to realize one antenna resonant frequency, where path 1 makes the antenna have the highest efficiency when the antenna operates in a-band, path 2 makes the antenna have the highest efficiency when the antenna operates in b-band, and path 3 makes the antenna have the highest efficiency when the antenna operates in c-band.

Assuming that the current network working frequency band is a, the terminal works in the frequency band a, the switch component opens the access 1, so that the resonance point is set to the parameter corresponding to the frequency band a, at the moment, the frequency band a has the highest efficiency, the power is normally transmitted, the Voltage Standing Wave Ratio (VSWR) of the frequency band b and the frequency band c is poor, namely the antenna efficiency of the antenna in the frequency band b and the frequency band c is poor, and the corresponding radiation power is also poor; the Voltage Standing Wave Ratio (VSWR) is an important index for measuring the performance of the antenna, and the smaller the VSWR value of the frequency band, the higher the efficiency of the antenna in the frequency band. Fig. 8 is a VSWR graph when the antenna operates in the a-band, the b-band, and the c-band, respectively. The frequency relationship among the a band, the b band and the c band in fig. 8 is only an example, and in other embodiments, the a band and the b band may not overlap, and the b band and the c band may not overlap. In practical application, it is only necessary to ensure that the switched resonant frequency is not within the working frequency range.

When a user is detected to be close to a terminal, a processor integrated in the radio frequency transceiver receives a trigger signal, and searches for preset resonance information according to the acquired current working frequency band a, for example, the preset resonance information records that a frequency band corresponding to a resonance point (resonance frequency) belongs to a frequency band b (here, for example, the resonance point may also be a frequency band c), the processor controls the antenna assembly to open a path 2, and switches between

paths

1 and 2 within a preset time period (or a time period when the user is close to the terminal), even if the antenna switches between the resonance frequency belonging to the frequency band a and the resonance frequency belonging to the frequency band b. In other embodiments, if the preset resonance information records that the a-band corresponding resonance point belongs to the c-band, the antenna assembly is controlled to switch between

paths

1 and 3 even if the antenna switches between the resonance frequency belonging to the a-band and the resonance frequency belonging to the c-band. The current terminal working frequency band is still the a frequency band, only the antenna resonance point is in the b frequency band (or c frequency band), and for the a frequency band, the antenna efficiency is poor, that is, the radiation power is poor.

Assuming that the current network working frequency band is b, the terminal works in the frequency band b, the switch component opens the channel 2, so that the resonance point is set to the parameter corresponding to the frequency band b, at the moment, the efficiency of the frequency band b is highest, the power is normally transmitted, the Voltage Standing Wave Ratio (VSWR) of the frequency band a and the frequency band c is poor, namely the antenna efficiency of the antenna in the frequency band a and the frequency band c is poor, and the corresponding radiation power is also poor;

when detecting that a user approaches a terminal, a processor integrated in the radio frequency transceiver receives a trigger signal, and searches for preset resonance information according to the acquired current working frequency band b, for example, the preset resonance information records that a resonance point (resonance frequency) corresponding to the b frequency band belongs to the c frequency band (here, for example, the b frequency band may also be the a frequency band), the processor controls the antenna assembly to open the path 3, and switches between the

paths

2 and 3 within a preset time period (or a time period when the user approaches the terminal), even if the antenna switches between the resonance frequency belonging to the b frequency band and the resonance frequency belonging to the c frequency band. In other embodiments, if the preset resonance information records that the resonance point corresponding to the b-band belongs to the a-band, the antenna assembly is controlled to switch between

paths

3 and 1 even if the antenna switches between the resonance frequency belonging to the b-band and the resonance frequency belonging to the a-band. The working frequency band of the current terminal is still the b frequency band, only the antenna resonance point is in other frequency bands, and for the b frequency band, the antenna efficiency is poor, namely the radiation power is poor.

The above application examples are merely illustrative and not exhaustive.

The switch component is controlled to switch among different paths according to a certain time proportion, namely, the resonance point is switched back and forth according to the certain time proportion, so that the radiation power is large and small, the average power in unit time is reduced, and the SAR value is reduced.

The embodiment of the disclosure also provides electronic equipment comprising the antenna device. The electronic communication device according to the embodiment of the present disclosure may include various handheld devices having a radio frequency transceiving function, vehicle-mounted devices, virtual reality/augmented reality devices, wireless headsets, smart home devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, and various forms of User Equipment (UE) (e.g., a Mobile phone), a Mobile Station (MS), a terminal device (terminal device), and the like.

In the description of the embodiments of the present disclosure, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in the present disclosure can be understood as appropriate to one of ordinary skill in the art.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, or suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.

Claims

1. An antenna device, comprising a switch assembly and an antenna, wherein an antenna is connected to the switch assembly, and a switch assembly is connected to a first resonant path and a second resonant path, wherein the first resonant path supports the antenna to resonate in an operating frequency band, and the second resonant path supports the antenna to resonate in a non-operating frequency band; wherein:

the switch component selectively conducts the first resonance path or the second resonance path to enable the antenna to resonate in an operating frequency band and a non-operating frequency band in a time-sharing mode in unit time, and the average radio frequency power of the antenna in the unit time is lower than a preset power threshold.

2. The antenna device of claim 1,

the switch component is connected with a plurality of second resonance paths, and the frequency bands supported by the second resonance paths are different.

3. The antenna device according to claim 1 or 2, further comprising a processor configured to, after receiving a trigger signal, obtain a current operating frequency band of the antenna, determine a resonant path in which the switch component is turned on, and send a control signal for switching the resonant path to the switch component.

4. An antenna device according to claim 3, wherein the processor is connected to a sensor arranged to send the trigger signal to the processor upon detection of a human body approaching the antenna device.

5. The antenna device of claim 1, wherein the switch assembly switches the resonant path to cause the antenna to resonate in the operating band and the non-operating band at a time per unit time, comprising:

the switch assembly periodically switches between the first resonant path and the second resonant path during the unit time; or

The switching assembly switches non-periodically between the first resonant path and the second resonant path during the unit time.

6. The antenna device of claim 1, wherein the switch assembly switches the resonant path to cause the antenna to resonate in the operating band and the non-operating band at a time per unit time, comprising:

in the unit time, the total time for the switch assembly to switch on the first resonance path is greater than or equal to or less than the total time for the switch assembly to switch on the second resonance path.

7. The antenna device according to claim 3, characterized in that the switch assembly is connected to a radio frequency transceiver arranged to output a radio frequency signal, the processor being integrated in the radio frequency transceiver.

8. The antenna device according to claim 3, further comprising a memory, connected to the processor, configured to store the frequency band and the resonance parameters corresponding to the resonance path.

9. A control method of an antenna device is characterized in that the antenna device comprises a switch component and an antenna, wherein one antenna is connected with one switch component, one switch component is connected with a first resonance path and a second resonance path, the first resonance path supports the antenna to resonate in an operating frequency band, and the second resonance path supports the antenna to resonate in a non-operating frequency band; the control method of the antenna device comprises the following steps:

10. The method of claim 9, wherein said selectively turning on the first resonant path or the second resonant path comprises:

and when detecting that the human body approaches the antenna device, switching and conducting the second resonant path to enable the antenna to resonate in a non-working frequency band.

11. The method according to claim 9 or 10, wherein the selectively conducting the first resonance path or the second resonance path causes the antenna to resonate in the working frequency band and the non-working frequency band in time division within a unit time includes:

12. The method according to claim 9 or 10, wherein the selectively conducting the first resonance path or the second resonance path causes the antenna to resonate in the working frequency band and the non-working frequency band in time division within a unit time includes:

the total time for the switching component to switch to the first resonant path is greater than or equal to or less than the total time for the switching component to switch to the second resonant path within the unit time.

13. An electronic device, characterized in that it comprises an antenna arrangement according to any of claims 1-8.