CN115085756A

CN115085756A - Electronic equipment and radio frequency channel switching method thereof

Info

Publication number: CN115085756A
Application number: CN202110272452.5A
Authority: CN
Inventors: 孙启瑞; 丛培亮; 吴凯; 梁永明
Original assignee: Hisense Mobile Communications Technology Co Ltd
Current assignee: Hisense Mobile Communications Technology Co Ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2022-09-20
Anticipated expiration: 2041-03-12
Also published as: CN115085756B

Abstract

The application discloses electronic equipment and a radio frequency channel switching method thereof, and relates to the technical field of communication. When the electronic equipment determines that the contact position of the target object and the electronic equipment is close to the first antenna, the first radio frequency channel can be controlled to be switched on, and the second radio frequency channel can be controlled to be switched off. Therefore, the path length of the radio-frequency signal provided by the radio-frequency signal source to reach the first antenna is larger than the path length of the radio-frequency signal to reach the second antenna, so that the SAR of an antenna system (comprising the first antenna and the second antenna) of the electronic device close to the first antenna direction is smaller than that close to the second antenna direction. And further, on the premise of not reducing the communication performance of the electronic equipment, the damage of the antenna system to the target object which is close to the first antenna can be effectively reduced.

Description

Electronic equipment and radio frequency channel switching method thereof

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to an electronic device and a method for switching radio frequency paths thereof.

Background

Electronic devices, such as televisions, refrigerators, cell phones, or tablet computers, may communicate with other devices through an antenna disposed therein.

Before the electronic device is shipped from a factory, it is necessary to detect whether a Specific Absorption Rate (SAR) of the antenna is greater than a safety threshold to determine whether the electronic device is safe for a human body. The SAR is used for measuring the damage degree of electromagnetic radiation generated by the antenna to a human body, and the damage degree is positively correlated with the SAR. If the SAR of the antenna is detected to be larger than the safety threshold, the transmitting power of the antenna needs to be reduced so as to reduce the SAR of the antenna to be lower than the safety threshold.

However, reducing the SAR of an antenna by reducing the transmission power of the antenna may result in reduced communication performance of the electronic device.

Disclosure of Invention

The application provides electronic equipment and a radio frequency channel switching method thereof, which can solve the problem that the communication performance of the electronic equipment is reduced due to the fact that the SAR of an antenna is reduced by reducing the generation power of the antenna in the related art. The technical scheme is as follows:

in one aspect, an electronic device is provided, which includes: the antenna comprises a radio frequency signal source, a first radio frequency channel, a second radio frequency channel, a first antenna, a second antenna, a switch circuit and a processor;

the radio frequency signal source is respectively connected with the first antenna and the second antenna through the first radio frequency path and is also respectively connected with the first antenna and the second antenna through the second radio frequency path;

the processor is connected with the switch circuit and used for determining the contact position of a target object and the electronic equipment, and if the distance between the contact position and the first antenna is smaller than the distance between the contact position and the second antenna, a first switch signal is sent to the switch circuit;

the switch circuit is respectively connected with the first radio frequency path and the second radio frequency path, and is used for responding to the first switch signal, controlling the first radio frequency path to be connected and controlling the second radio frequency path to be disconnected;

the first radio frequency path comprises a first sub-path and a second sub-path, the radio frequency signal source is connected with the first antenna through the first sub-path and is connected with the second antenna through the second sub-path, and the length of the first sub-path is greater than that of the second sub-path;

the second radio frequency path comprises a third sub-path and a fourth sub-path, the radio frequency signal source is connected with the first antenna through the third sub-path and is connected with the second antenna through the fourth sub-path, and the length of the third sub-path is smaller than that of the fourth sub-path.

Optionally, the operating frequency band of the first antenna and the operating frequency band of the second antenna have overlapping frequency bands.

Optionally, the difference between the phase of the radio frequency signal provided by the radio frequency signal source when the radio frequency signal reaches the first antenna through the first sub-path and the phase of the radio frequency signal provided by the radio frequency signal source when the radio frequency signal reaches the second antenna through the second sub-path is greater than or equal to-pi, less than or equal to pi, and not equal to 0;

the difference value between the phase position of the radio-frequency signal reaching the second antenna through the fourth sub-passage and the phase position of the radio-frequency signal reaching the first antenna through the third sub-passage is larger than or equal to-pi, smaller than or equal to pi, and not equal to 0.

Optionally, the first and second sub-paths have a first overlapping section, and the third and fourth sub-paths have a second overlapping section; the switching circuit includes: a single pole double throw switch;

the movable contact of the single-pole double-throw switch is connected with the radio frequency signal source, the first stationary contact of the single-pole double-throw switch is connected with the first overlapping section, and the second stationary contact of the single-pole double-throw switch is connected with the second overlapping section.

Optionally, the electronic device further includes: a position sensing assembly;

the position sensing assembly is connected with the processor and used for generating a sensing signal based on the touch of the target object on the electronic equipment and sending the sensing signal to the processor;

the processor is further configured to determine the contact location based on the sensing signal.

Optionally, the position sensing assembly: a plurality of capacitive sensors, and at least two of the plurality of capacitive sensors are distributed on different sides of the electronic device.

Optionally, the processor is configured to:

and if the distance between the contact position and the first antenna is determined to be smaller than the distance between the contact position and the second antenna and the distance between the contact position and the first antenna is smaller than a distance threshold value, sending a first switching signal to the switching circuit.

Optionally, the processor is further configured to send a second switching signal to the switching circuit if it is determined that the distance between the contact position and the first antenna is greater than the distance between the contact position and the second antenna;

the switch circuit is further configured to control the second rf path to be connected and control the first rf path to be disconnected in response to the second switch signal.

In another aspect, a radio frequency path switching method for an electronic device is provided, which is applied to a processor of the electronic device, and the electronic device further includes: the antenna comprises a radio frequency signal source, a first radio frequency channel, a second radio frequency channel, a first antenna, a second antenna and a switch circuit; the method comprises the following steps:

determining a contact position of a target object and the electronic equipment;

and if the distance between the contact position and the first antenna is smaller than the distance between the contact position and the second antenna, sending a first switch signal to the switch circuit, wherein the first switch signal is used for indicating the switch circuit to control the first radio frequency channel to be connected and control the second radio frequency channel to be disconnected.

Optionally, if the distance between the contact position and the first antenna is smaller than the distance between the contact position and the second antenna, sending a first switching signal to the switching circuit includes:

and if the distance between the contact position and the first antenna is smaller than the distance between the contact position and the second antenna and the distance between the contact position and the first antenna is smaller than a distance threshold value, sending a first switching signal to the switching circuit.

In yet another aspect, an electronic device is provided, the electronic device including: the radio frequency channel switching method of the electronic equipment comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the computer program to realize the radio frequency channel switching method of the electronic equipment.

In still another aspect, a computer-readable storage medium is provided, in which a computer program is stored, and the computer program is loaded and executed by a processor to implement the radio frequency path switching method of the electronic device according to the above aspect.

In still another aspect, a computer program product containing instructions is provided, which when run on the computer, causes the computer to execute the radio frequency path switching method of the electronic device according to the above aspect.

The beneficial effect that technical scheme that this application provided brought includes at least:

the application provides electronic equipment and a radio frequency channel switching method thereof. Therefore, the path length of the radio-frequency signal provided by the radio-frequency signal source to reach the first antenna is larger than the path length of the radio-frequency signal to reach the second antenna, so that the SAR of an antenna system (comprising the first antenna and the second antenna) of the electronic device close to the first antenna direction is smaller than that close to the second antenna direction. And further, on the premise of not reducing the communication performance of the electronic equipment, the damage of the antenna system to the target object which is close to the first antenna can be effectively reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of another electronic device provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of another electronic device provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of another electronic device provided in an embodiment of the present application;

fig. 5 is a schematic structural diagram of another electronic device provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of another electronic device provided in an embodiment of the present application;

FIG. 7 is a diagram illustrating a return loss curve of the antenna system when the first RF path is turned on in the electronic device shown in FIG. 6;

FIG. 8 is a graph illustrating a return loss curve of the antenna system when the second RF path is turned on in the electronic device shown in FIG. 6;

fig. 9 is a radiation pattern of the antenna system when the first rf path is conductive in the electronic device of fig. 6;

fig. 10 is a radiation pattern of the antenna system when the second rf path is on in the electronic device shown in fig. 6;

fig. 11 is a schematic diagram of the distribution of the SAR values at the side of the antenna system close to the second antenna when the first rf path is turned on in the electronic device shown in fig. 6;

fig. 12 is a schematic diagram of the distribution of the SAR values at the side of the antenna system close to the second antenna when the second rf path is conducted in the electronic device shown in fig. 6;

fig. 13 is a flowchart of a radio frequency path switching method of an electronic device according to an embodiment of the present application;

fig. 14 is a flowchart of a radio frequency path switching method of another electronic device according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 16 is a block diagram of a software structure of an electronic device according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

In the related art, in order to reduce the SAR of the antenna below the safety threshold, the housing of the electronic device may be made of a wave-absorbing material, and/or a protective sleeve made of a wave-absorbing material may be sleeved on the electronic device. The wave-absorbing material is a material capable of absorbing or greatly weakening the electromagnetic wave energy generated by the antenna. However, the above method also causes the communication performance of the electronic device to be degraded.

The embodiment of the present application provides an electronic device, which may be optionally a smart phone, a tablet computer, a laptop computer, a desktop computer, a router, a Customer Premises Equipment (CPE), a television, a refrigerator, an air conditioner, or a wearable device. For example, the electronic device may be a mobile phone.

Referring to fig. 1, the electronic device may include: the radio frequency signal source 01, the first radio frequency path 02, the second radio frequency path 03, the first antenna 04, the second antenna 05, the switch circuit 06, and the processor 07. The rf signal source 01 may be connected to the first antenna 04 and the second antenna 05 through a first rf path 02, and may be connected to the first antenna 04 and the second antenna 05 through a second rf path 03.

The first antenna 04 and the second antenna 05 may both be in an operating state, that is, the radio frequency signal provided by the radio frequency signal source 01 may be transmitted to the first antenna 04 and the second antenna 05 through the first radio frequency path 02 and/or the second radio frequency path 03, and the radio frequency signal is transmitted in the form of an electromagnetic wave by the first antenna 04 and the second antenna 05.

The processor 07 may be connected to the switch circuit 06, and the processor 07 may be configured to determine a contact position of the object with the electronic device, and send a first switch signal to the switch circuit 06 if the contact position is closer to the first antenna 04 than the second antenna 05. Alternatively, the object may be a human body.

The switch circuit 06 may be connected to the first rf path 02 and the second rf path 03 respectively, and the switch circuit 06 may be configured to control the first rf path 02 to be connected and the second rf path 03 to be disconnected in response to the first switch signal.

The first rf path 02 includes a first sub-path 021 and a second sub-path 022, the rf signal source 01 may be connected to the first antenna 04 through the first sub-path 021 and may be connected to the second antenna 05 through the second sub-path 022, and the length of the first sub-path 021 is greater than the length of the second sub-path 022.

The second rf path 03 may include a third sub-path 031 and a fourth sub-path 032, the rf signal source 01 may be connected to the first antenna 04 through the third sub-path 031, and connected to the second antenna 05 through the fourth sub-path 032, and the length of the third sub-path 031 is smaller than the length of the fourth sub-path 032.

When the first rf path 02 is turned on and the second rf path 03 is turned off, the length of a path (i.e., a signal transmission path) through which the rf signal provided by the rf signal source 01 reaches the first antenna 04 is greater than the length of a path through which the rf signal reaches the second antenna 05. Thus, the phase of the radio frequency signal arriving at the first antenna 04 is smaller than the phase of the radio frequency signal arriving at the second antenna 05. For example, the phase of the radio frequency signal when it reaches the first antenna 04 is 0, and the phase of the radio frequency signal when it reaches the second antenna 05 is pi, so that the equiphase plane (also referred to as an envelope plane) of the electromagnetic wave radiated from the first antenna 01 and the second antenna 02 is inclined in a direction approaching the second antenna 05. In the process of propagation of the electromagnetic wave, the locus of the geometric position of each point with the same phase is an equiphase surface.

Since the propagation direction of the electromagnetic wave is perpendicular to the equiphase plane, the propagation direction of the electromagnetic wave of the antenna system (including the first antenna and the second antenna) of the electronic device may be biased toward the second antenna 05. Accordingly, the maximum radiation direction of the antenna system is biased to the position of the second antenna 05. I.e. the radiation intensity of the antenna system in the direction close to the first antenna 04 and away from the second antenna 05 (i.e. the radiation intensity of the side close to the first antenna 04) is smaller than the radiation intensity of the antenna system in the direction close to the second antenna 05 and away from the first antenna 04 (i.e. the radiation intensity of the side close to the second antenna 05). Alternatively, it can be understood that: the SAR of the antenna system in the direction close to the first antenna 04 and far away from the second antenna 05 is smaller than the SAR of the antenna system in the direction close to the second antenna 05 and far away from the first antenna 04. Wherein, the absolute value of the difference value of the phase when the radio frequency signal reaches the first antenna 04 and the phase when the radio frequency signal reaches the second antenna 05 is less than or equal to 2 pi. For example, the phase of the radio frequency signal arriving at the first antenna 04 and the phase of the radio frequency signal arriving at the second antenna 05 both lie within [2k pi, 2k pi +2 pi ], where k is an integer.

When the second rf path 03 is turned on and the first rf path 02 is turned off, the length of a path through which the rf signal provided by the rf signal source 01 reaches the second antenna 05 is greater than the length of a path through which the rf signal reaches the first antenna 04. Therefore, the phase of the rf signal provided by the rf signal source 01 when reaching the first antenna 04 is greater than the phase of the rf signal provided by the rf signal source when reaching the second antenna 05, for example, the phase of the rf signal when reaching the first antenna 04 is pi, and the phase of the rf signal when reaching the second antenna 05 is 0, then the equiphase surfaces will be inclined toward the first antenna 04, so that the propagation direction of the antenna system of the electronic device is biased toward the first antenna 04. Accordingly, the radiation intensity of the antenna system in the direction close to the first antenna 04 and far from the second antenna 05 is greater than the radiation intensity of the antenna system in the direction close to the second antenna 05 and far from the first antenna 04, that is, the SAR of the antenna system in the direction close to the first antenna 04 and far from the second antenna 05 is greater than the SAR of the antenna system in the direction close to the second antenna 05 and far from the first antenna 04.

As can be seen from the above description, the electronic device provided in the embodiment of the present application can reduce the radiation intensity of the antenna system in the direction close to the target object, that is, reduce the SAR of the antenna system in the direction close to the target object, by adjusting the length of the path through which the radio frequency signal provided by the radio frequency signal source 01 reaches the two antennas, on the premise that the first antenna 04 and the second antenna 05 both operate (that is, on the premise that the communication performance of the electronic device is not affected), so as to effectively reduce the damage of the antenna system to the target object close to the antenna system.

In summary, the embodiment of the present application provides an electronic device, which can control a first radio frequency channel to be turned on and a second radio frequency channel to be turned off when it is determined that a contact position of a target object and the electronic device is closer to a first antenna. Therefore, the path length of the radio-frequency signal provided by the radio-frequency signal source to reach the first antenna is larger than the path length of the radio-frequency signal to reach the second antenna, so that the SAR of an antenna system (comprising the first antenna and the second antenna) of the electronic device close to the first antenna direction is smaller than that close to the second antenna direction. And further, on the premise of not reducing the communication performance of the electronic equipment, the damage of the antenna system to the target object which is close to the first antenna can be effectively reduced.

Optionally, the first antenna 04 and the second antenna 05 may be monopole antennas, dipole antennas, inverted-F antennas (IFAs), planar inverted-F antennas (PIFAs), patch antennas, microstrip antennas or slot antennas. For example, both the first antenna 04 and the second antenna 05 may be PIFA antennas, and the embodiments of the present application do not limit the types of the first antenna 04 and the second antenna 05.

In this embodiment, the radio frequency path may refer to: a signal transmission line from the rf signal source 01 to the antenna. Alternatively, the signal transmission line may be a microstrip line, a coaxial line, or a photonic crystal optical waveguide. The embodiment of the present application does not limit the type of the rf path.

For convenience of description, the contact position of the object with the electronic device is hereinafter simply referred to as the contact position of the object. In this embodiment, the processor 07 may be configured to detect a path through which the rf signal source 01 is currently communicated with the first antenna 04 and the second antenna 05 when it is determined that the contact position of the object is located at a distance from the first antenna 04 that is smaller than the distance from the contact position of the object to the second antenna 05. If the processor 07 determines that the rf signal source 01 is currently connected to the first antenna 04 and the second antenna 05 through the second rf path 03, a first switching signal may be sent to the switching circuit 06 to instruct the switching circuit 06 to switch the rf path for connecting the rf signal source to the antenna.

If the processor 07 determines that the rf signal source 01 is currently connected to the first antenna 04 and the second antenna 05 through the first rf path 02, it may be determined that the rf path does not need to be switched, i.e., the switch circuit 06 may keep the current state unchanged.

Optionally, the processor 07 may be configured to: if the distance between the contact position and the first antenna 04 is determined to be smaller than the distance between the contact position and the second antenna 05, and the distance between the contact position and the first antenna 04 is determined to be smaller than the distance threshold, a first switching signal is sent to the switching circuit 06. Wherein the distance threshold may be pre-stored in the electronic device.

It is understood that when the distance between the contact position of the target object and the antenna is less than the distance threshold, that is, the distance between the target object and the antenna is less than the distance threshold, the target object may be damaged by the electromagnetic radiation generated by the antenna. When the distance between the contact position and the antenna is larger than the distance threshold value, the damage of the electromagnetic radiation generated by the antenna to the target object is small and can be ignored.

Therefore, the processor 07 may send the first switching signal to the switching circuit 06 to decrease the SAR of the first antenna 04 when it is determined that the distance between the contact position and the first antenna 04 is smaller than the distance threshold, so as to avoid the antenna system from damaging the target object located at a short distance from the first antenna 04. When the processor 07 determines that the contact position is greater than the distance threshold, the processor does not need to send the first switch signal, so that the processing resources of the electronic device can be prevented from being wasted.

In this embodiment, the processor 07 may be further configured to send a second switching signal to the switching circuit 06 if it is determined that the contact position of the object is located a distance from the first antenna 04 that is greater than the distance from the contact position to the second antenna 05. The switch circuit 06 may be further configured to control the second rf path 03 to be connected and control the first rf path 02 to be disconnected in response to the second switch signal. Therefore, the maximum radiation direction of the antenna system is biased to the first antenna 04, that is, the SAR of the antenna system close to the second antenna 05 and far away from the first antenna 04 can be effectively reduced, and then the damage of the antenna system to a target object close to the second antenna 05 can be avoided.

Optionally, the processor 07 may be configured to: if the distance between the contact position of the target object and the second antenna 05 is determined to be smaller than the distance between the contact position and the first antenna 04, and the distance between the contact position and the second antenna 05 is smaller than the distance threshold, a second switching signal is sent to the switching circuit 06. Therefore, on the premise of avoiding waste of processing resources of the electronic equipment, damage of the antenna system to the target object which is close to the second antenna 05 can be avoided.

In the embodiment of the present application, the operating frequency band of the first antenna 04 and the operating frequency band of the second antenna 05 have overlapping frequency bands. For example, the operating frequency band of the first antenna 04 may be 1 gigahertz (GHz) to 7GHz, the operating frequency band of the second antenna 05 may be 3GHz to 15GHz, and the overlapping frequency band of the first antenna 04 and the second antenna 05 may be 3GHz to 7 GHz.

In addition, the first antenna 04 and the second antenna 05 in this embodiment may be single-frequency antennas or multi-frequency antennas, and this embodiment does not limit the working frequency bands of the first antenna 04 and the second antenna 05, and only needs to ensure that the first antenna 04 and the second antenna 05 have overlapping frequency bands.

Optionally, a difference (i.e., a phase difference) between a phase of the rf signal provided by the rf signal source 01 when the rf signal reaches the first antenna 04 through the first sub-path 021 and a phase of the rf signal when the rf signal reaches the second antenna 05 through the second sub-path 022 may be greater than or equal to-pi, smaller than or equal to pi, and not equal to 0.

The difference between the phase of the rf signal reaching the second antenna 05 through the fourth sub-path 032 and the phase of the rf signal reaching the fourth antenna 04 through the third sub-path 031 may be greater than or equal to-pi, smaller than or equal to pi, and not equal to 0.

Because the radio frequency signals reach different antennas in the transmission process

The length difference Delta L between the path and the path for transmitting the radio frequency signal satisfies the following formula:

in the above formula, λ is the wavelength corresponding to the overlapping band in vacuum. The path length difference Δ L may refer to a length difference between any two sub-paths included in one rf path. For example, the length difference Δ L of the path may refer to the length difference between the first sub-path 021 and the second sub-path 022, or may refer to the length difference between the fourth sub-path 032 and the third sub-path 031.

Compared with the radio frequency signal transmitted in vacuum, the wavelength of the radio frequency signal transmitted in the medium changes, and the changed wavelength λ' satisfies the following condition:

in the above formula,. epsilon _r Is the relative dielectric constant of the medium, mu _r Is the relative medium permeability of the medium.

Based on this, in the scenarios that the phase difference between the rf signal arriving at the first antenna 04 through the first sub-path 021 and arriving at the second antenna 05 through the second sub-path 022, and the phase difference between the rf signal arriving at the second antenna 05 through the fourth sub-path 032 and arriving at the fourth antenna 04 through the third sub-path 031 are both greater than or equal to-pi, less than or equal to pi, and not equal to 0, the length difference between the first sub-path 021 and the second sub-path 022 in the first rf path 02, and the length difference between the fourth sub-path 032 and the third sub-path 032 in the second rf path 03 can both be greater than or equal to- λ/2, less than or equal to λ/2, and not equal to 0.

In this embodiment of the present application, there may be multiple arrangement manners of the first rf path 02 and the second rf path 03, and the following several optional implementation manners in this embodiment of the present application are taken as examples to illustrate the arrangement manners of the first rf path 02 and the second rf path 03.

In a first alternative implementation, as shown in fig. 1, any two sub-paths of the first sub-path 021, the second sub-path 022 in the first radio frequency path 02, the third sub-path 031 in the second radio frequency path 03, and the fourth sub-path 032 are not overlapped with each other.

In this scenario, the switching circuit 06 may include: four single-pole single-throw switches corresponding to the first to fourth sub-paths 021 to 032 one by one. Each single pole single throw switch may be connected to a respective sub-path and processor 07 and may control the on/off state of the respective sub-path to which it is connected.

In a second alternative implementation, as shown in fig. 2 and fig. 3, the first sub-path 021 and the second sub-path 022 may overlap, the third sub-path 031 and the fourth sub-path 032 may also overlap, and the first rf path 02 and the second rf path 03 do not overlap. That is, the first and

second sub-passages

021 and 022 may have the first overlapping section 02a, and the third and

fourth sub-passages

031 and 032 may have the second overlapping section 03 a. Therefore, the layout of the wiring inside the electronic equipment can be effectively simplified, the length of the wiring required to be arranged is reduced, and the manufacturing cost of the electronic equipment is reduced.

In a third alternative implementation, the first sub-path 021 and the second sub-path 022 have a first overlapping section 02a, the third sub-path 031 and the fourth sub-path 032 have a second overlapping section 03a, and the first sub-path 021 and the third sub-path 031 overlap, and the second sub-path 022 and the fourth sub-path 032 also overlap, i.e. the first radio frequency path 02 and the second radio frequency path 03 overlap. Therefore, the layout of the wires inside the electronic equipment can be further simplified, the length of the wires required to be arranged is reduced, and the manufacturing cost of the electronic equipment is further effectively reduced.

As can be seen from fig. 2 to 5, the first overlapping section 02a has a first branch point P and the second overlapping section 03a has a second branch point Q. As can be seen from fig. 2 and 4, in addition to the first overlapping segment 02a, the first sub-path 021 may further include: the second sub-passage 022 may further include a passage 02b between the first antenna 04 and the first branch point P: a path 02c between the second antenna 05 to the first branch point P. In addition to the second overlapping section 03a, the third sub-passage 031 may further include: the fourth sub-path 032 may further include a path 03b from the first antenna 04 to the second branch point Q: a path 03c from the second antenna 05 to the second branch point Q.

Optionally, the switching circuit 06 is connected to the first overlapping section 02a and the second overlapping section 03a, respectively. For example, the switching circuit 06 may be located in the first overlapping section 02a and in the second overlapping section 03 a. Accordingly, as shown in fig. 2 and 4, the first overlapping section 02a may include: a first subsection 02a1 and a second subsection 02a2, the second overlapping section 03a may include: a second subsection 03a1 and a second subsection 03a 2.

In the second and third alternative implementations described above, on one hand, referring to fig. 2 and 4, the switch circuit 06 may include: a first single-pole single-throw switch 061 connected to the first overlapping segment 02a and the processor 07, respectively, and a second single-pole single-throw switch 062 connected to the second overlapping segment 03a and the processor 07, respectively.

Moreover, the arrangement positions of the first single-pole single-throw switch 061 and the second single-pole single-throw switch 062 in fig. 2 and fig. 4 are an exemplary implementation manner of the embodiment of the present application. It will be appreciated that each single pole single throw switch may be connected to any point of an overlapping segment. For example, one end of each single-pole single-throw switch may be directly connected to the rf signal source 01, and the other end may be connected to a terminal of one of the overlapping segments.

On the other hand, the switch circuit 06 may include: single Pole Double Throw (SPDT) 063. The moving contact of the single pole double throw switch 063 can be connected to the rf signal source 01, for example the moving contact can be connected directly to the rf signal source 01. A first stationary contact of the single pole double throw switch 063 can be connected to the first overlapping section 02a and a second stationary contact of the single pole double throw switch 063 can be connected to the second overlapping section 03 a.

Alternatively, referring to fig. 3 and 5, the first overlapping section 02a and the second overlapping section 03a may overlap, i.e., the first overlapping section 02a and the second overlapping section 03a have an overlapping portion a. For example, the overlap a may be an overlap of the second subsection 02a2 of the first overlapping section 02a and the second subsection 03a2 of the second overlapping section 03 a. Therefore, the layout of the internal wiring of the electronic equipment can be further simplified, and the manufacturing cost of the electronic equipment is reduced.

In this case, the moving contact of the single pole double throw switch 063 can be connected to the rf signal source 01 through the overlapping portion a. For example, one end of the overlap a may be connected to the rf signal source 01 and the other end may be connected to the moving contact of the single pole double throw switch 063.

In the embodiment of the present application, referring to fig. 4 and 5, the electronic device may further include: a position sensing assembly 08. The position sensing component 08 may be connected to the processor 07, and may be configured to generate a sensing signal based on the touch of the object on the electronic device, and transmit the sensing signal to the processor 07. Accordingly, the processor 07 may be further configured to determine a touch location based on the sensing signal.

The position sensing assembly 08 may include: a plurality of capacitive sensors. And at least two of the plurality of capacitive sensors may be distributed on different sides of the electronic device. For example, with continued reference to FIG. 5, the position sensing assembly 08 may include two capacitive sensors. One of the two capacitive sensors may be located on the left side of the electronic device and the other may be located on the right side of the electronic device.

Optionally, the position sensing assembly 08 may further include: a ranging sensor that may be used to sense the position of the target object to assist the capacitive sensor in sensing the target object.

Alternatively, the distance measuring sensor may be an infrared sensor, an ultrasonic sensor or a laser sensor.

Fig. 6 is a schematic structural diagram of another electronic device provided in an embodiment of the present application. As can be seen from fig. 6, the electronic device comprises a first antenna 04 and a second antenna 05, and the first antenna 04 and the second antenna 05 are both PIFAs, and the radio frequency path between the antenna and the radio frequency signal source 01 is arranged in the same manner as shown in fig. 4 and 5.

Also, as can be seen from fig. 6, the first antenna 04 and the second antenna 05 are both disposed at the top end of the electronic device.

Fig. 7 is a diagram illustrating a return loss curve of the antenna system when the first rf path is turned on in the electronic device shown in fig. 6. Fig. 8 is a diagram illustrating a return loss curve of the antenna system when the second rf path is turned on in the electronic device shown in fig. 6. The abscissa in fig. 7 and 8 is frequency in GHz and the ordinate is return loss in decibels (db).

The Return Loss (RL) of an antenna refers to the ratio of the reflected power to the incident power of the antenna, and is expressed in db. The return loss is a negative value, and the smaller the return loss, that is, the larger the absolute value of the return loss, the better the radiation performance of the antenna.

As can be seen from fig. 7 and 8, when the first rf path 02 is turned on, the return loss curve of the antenna system formed by the first antenna 04 and the second antenna 05 is the same as the return loss curve of the antenna system when the second rf path 03 is turned on, that is, the radiation performance of the antenna system is the same. Therefore, the processor 07 does not affect the radiation performance of the antenna system and does not affect the transmission efficiency of the antenna no matter whether the processor controls the first rf path 02 to be conducted or controls the second rf path 03 to be conducted.

Assume that the overlapping frequency band of the first antenna 04 and the second antenna 05 in the electronic device shown in fig. 6 is 5.5 GHz. Fig. 9 is a radiation pattern of the antenna system when the first rf path is conductive in the electronic device shown in fig. 6. Fig. 10 is a radiation pattern of the electronic device shown in fig. 6 when the second rf path is on. The coordinate systems shown in fig. 9 and 10 are both cartesian coordinate systems, in which the X-axis represents a first component of the field strength of the electromagnetic wave radiated by the antenna in the horizontal direction, the Y-axis represents a second component of the field strength in the horizontal direction, and the Z-axis represents a third component of the field strength in the vertical direction. Any two of the first component, the second component and the third component are perpendicular to each other. Theta (Theta) is the elevation angle between a point in the radiation pattern and the horizontal plane (which may also be referred to as the XY plane, i.e., the plane formed by the X and Y axes). Phi (i.e., Phi) is the azimuth angle between a point in the radiation pattern and the X-axis.

In fig. 9 and 10, colors with different gray values are used to represent different power gains of the antenna system, and the smaller the gray value of a certain color is, the larger the power gain of the antenna system at the color is. The power gain of the antenna system can be used to characterize the radiation intensity of the antenna system, and the radiation intensity of the antenna system is positively correlated to the power gain. And, the power gain is a relative value, i.e., the power gain has a reference, the unit of the power gain is dBi. For example, the reference is the power gain of the omni-directional antenna.

As can be seen from comparing fig. 9 and fig. 10, after the first rf path 01 is switched from on to off and the second rf path 02 is switched from off to on, the distribution position of the maximum radiation intensity of the antenna system is switched from the right side of the Y-axis to the left side of the Y-axis.

Fig. 11 is a schematic diagram of the distribution of the SAR sizes of the antenna system on the side close to the second antenna when the first rf path is turned on in the electronic device shown in fig. 6. Fig. 12 is a schematic diagram of the distribution of the SAR values at the side of the antenna system close to the second antenna when the second rf path is turned on in the electronic device shown in fig. 6. The X-axis in fig. 11 and 12 may be parallel to the width direction of the electronic device (i.e., the pixel row direction of the display screen of the electronic device), and the Y-axis may be parallel to the length direction of the electronic device (i.e., the pixel column direction of the display screen of the electronic device). In fig. 10 and fig. 11, colors with different gray values may also be sampled to represent different SAR of the antenna system, and the larger the gray value of a certain color is, the larger SAR of the antenna system at the color is. In addition, the log in fig. 11 and 12 indicates that the gray value of the color corresponding to the SAR of the antenna system is obtained by taking the logarithm operation.

As can be seen from fig. 11, when the first rf path 02 is turned on and the second rf path 03 is turned off, the antenna system is close to the second antenna 05 and far away from the first antennaSAR in the 04 direction is 13647.2 watts/cubic meter (W/m) at maximum ³ ). When the second rf path 03 is turned on and the first rf path 02 is turned off, the maximum SAR value of the antenna system in the direction close to the second antenna 05 and away from the first antenna 04 is 3367.21W/m ³ . Comparing fig. 11 and fig. 12, it can be seen that, when the first rf path 02 is switched from on to off, and the second rf path 03 is switched from off to on, the SAR of the antenna system in the direction close to the second antenna 05 and far from the first antenna 04 is significantly reduced.

As can be seen from the above description, if the rf signal source 01 is currently connected to the first antenna 04 and the second antenna 05 through the second rf path 03, the processor 07 may control the first rf path 02 to be turned on and control the second rf path 03 to be turned off when the target object approaches the first antenna 04, that is, when the distance between the contact position of the target object and the first antenna 04 is the minimum. At this time, the maximum radiation intensity of the antenna system is distributed at the position of the second antenna 05, so that the SAR of the antenna system in the direction close to the first antenna 04 and far from the second antenna 05 can be reduced, and the damage of the antenna system to the target object close to the first antenna 04 is reduced on the premise of ensuring the radiation performance of the electronic device.

Then, if the target object is close to the second antenna 05, that is, the distance between the contact position of the target object and the second antenna 05 is the minimum, the processor 07 may control the second rf path 03 to be turned on, and the first rf path 02 to be turned off. At this time, the maximum radiation intensity of the antenna system is distributed at the position of the first antenna 04, so that the SAR of the antenna system in the direction close to the second antenna 05 and far from the first antenna 04 can be reduced, and the damage of the antenna system to the target object close to the second antenna 05 is reduced on the premise of ensuring the radiation performance of the electronic device.

That is, the processor 07 may flexibly control the on/off of the first rf path 02 and the second rf path 03 according to the contact position of the target object, so as to reduce the SAR of the antenna system in the direction close to the contact position, and then reduce the damage of the antenna system to the target object that is closer to the antenna system on the premise of not affecting the communication performance of the electronic device.

The above embodiments are all exemplified by the electronic device including the first antenna 04 and the second antenna 05. It is understood that the electronic device may further include at least one third antenna, that is, the number of antennas included in the electronic device is not limited in the embodiments of the present application.

For a scenario where the electronic device further comprises a third antenna, the first radio frequency path 02 further comprises a fifth sub-path connected to the third antenna, the length of the fifth sub-path may be smaller than the length of the second sub-path 022. The second rf path 03 further comprises a sixth sub-path connected to the third antenna, which may have a length smaller than the length of the third sub-path 032. Moreover, the rf signal source 01 may be connected to the first antenna 04 and the second antenna 05 through a third rf path. The third radio frequency path may include: a seventh sub-path connected to the first antenna 04, an eighth sub-path connected to the second antenna 05, and a ninth sub-path connected to the third antenna. Wherein the length of the seventh sub-path may be less than the length of the eighth sub-path, and the length of the eighth sub-path may be less than the length of the ninth sub-path. Accordingly, the processor 07 may reduce the SAR of the antenna system in the direction of the target object by controlling the on/off of the three rf paths.

Alternatively, the first antenna 04 and the second antenna 05 may be located at the same end of the electronic device. For example, assuming that the electronic device is a mobile phone, the first antenna 04 and the second antenna 05 may be both located at one end of the mobile phone where a camera is disposed. It is understood that the first antenna 04 and the second antenna 05 may also be located at other positions of the electronic device, for example, may be located at one end of the mobile phone where the speaker is located, and the location of the antennas is not limited in this embodiment of the application.

Optionally, the above embodiment is exemplified by taking an example that an absolute value of a difference between a phase when the radio frequency signal reaches the first antenna 04 and a phase when the radio frequency signal reaches the second antenna 05 is less than or equal to 2 pi. It will be appreciated that the phase of the radio frequency signal as it reaches the first antenna 04 may be greater than 2 pi relative to the phase of the radio frequency signal as it reaches the second antenna 05. In this scenario, the first rf path 02 may include a first sub-path 021 having a length greater than that of the second sub-path 022, or a length less than that of the second sub-path 022. And the length of the first sub-path 021 and the length of the second sub-path 022 may be determined by a simulation experiment based on the positions of the first antenna 04, the second antenna 05 and the radio frequency signal source 01 by a developer, so as to ensure that when the first radio frequency path 01 is turned on, the phase of the radio frequency signal reaching the first antenna 04 is different from the phase of the radio frequency signal reaching the second antenna 05, so that the radiation intensity of the antenna system in the direction close to the first antenna 01 is higher than the radiation intensity of the antenna system in the direction close to the second antenna 02, thereby reducing the damage of the antenna system to a target object close to the first antenna 04.

In this scenario, the length of the third sub-path 031 and the length of the fourth sub-path 032 included in the second rf path 03 may be determined by referring to the above-mentioned manner for determining the length of the first sub-path 021 and the length of the second sub-path 022, and the embodiments of the present application are not described herein again.

Alternatively, the first antenna 04 and the second antenna 05 may be fed by a single-port feeding method. It can be understood that the first antenna 04 and the second antenna 05 may also be fed by a coupling feeding manner, and the feeding manner of the first antenna 04 and the second antenna 05 is not limited in this embodiment of the application.

The embodiment of the present application further provides a radio frequency path switching method of an electronic device, which may be applied to a processor of the electronic device provided in the foregoing embodiment, for example, the electronic device shown in any one of fig. 1 to 6. The electronic device may include: the antenna comprises a radio frequency signal source, a first radio frequency channel, a second radio frequency channel, a first antenna, a second antenna and a switch circuit. The radio frequency signal source can be respectively connected with the first antenna and the second antenna through a first radio frequency path, and can also be respectively connected with the first antenna and the second antenna through a second radio frequency path, and the switch circuit can be respectively connected with the processor, the first radio frequency path and the second radio frequency path. Referring to fig. 13, the method may include:

step 101, determining a contact position of a target object and the electronic equipment.

After the electronic device is started, a processor of the electronic device can determine the contact position of the target object and the electronic device. Alternatively, the object may be a human body.

And 102, if the distance between the contact position and the first antenna is smaller than the distance between the contact position and the second antenna, sending a first switching signal to a switching circuit.

The processor of the electronic device, after determining the contact location, may compare the distance of the contact location from the first antenna and the magnitude of the distance of the contact location from the second antenna. If the processor determines that the distance between the contact position and the first antenna is less than the distance between the contact position and the second antenna, a first switching signal may be sent to the switching circuit.

The first switch signal may be used to instruct the switch circuit to control the first rf path to be connected and control the second rf path to be disconnected. When the first radio frequency channel is connected and the second radio frequency channel is disconnected, the radiation intensity of the antenna system (including the first antenna and the second antenna) of the electronic device close to the first antenna is smaller than that close to the second antenna. That is, the SAR of the antenna system near the first antenna direction is smaller than the SAR near the second antenna direction, so that damage to the target object near the first antenna by the antenna system can be reduced.

In summary, the embodiment of the present application provides a radio frequency path switching method for an electronic device, where when it is determined that a contact position of a target object and the electronic device is closer to a first antenna, the electronic device may control a first radio frequency path to be turned on and a second radio frequency path to be turned off. Therefore, the path length of the radio-frequency signal provided by the radio-frequency signal source to reach the first antenna is larger than the path length of the radio-frequency signal to reach the second antenna, so that the SAR of an antenna system (comprising the first antenna and the second antenna) of the electronic device close to the first antenna direction is smaller than that close to the second antenna direction. And further, on the premise of not reducing the communication performance of the electronic equipment, the damage of the antenna system to the target object which is close to the first antenna can be effectively reduced.

Fig. 14 is a flowchart of another radio frequency path switching method of an electronic device according to an embodiment of the present disclosure, where the method may be applied to a processor of the electronic device according to the embodiment, for example, the electronic device shown in any one of fig. 1 to 6. The electronic device may include: the antenna comprises a radio frequency signal source, a first radio frequency channel, a second radio frequency channel, a first antenna, a second antenna and a switch circuit. The radio frequency signal source can be respectively connected with the first antenna and the second antenna through a first radio frequency path, and can also be respectively connected with the first antenna and the second antenna through a second radio frequency path, and the switch circuit can be respectively connected with the processor, the first radio frequency path and the second radio frequency path. Referring to fig. 14, the method may include:

step 201, determining a contact position of the target object and the electronic device.

In an embodiment of the present application, the electronic device may further include: a position sensing component coupled to a processor of the electronic device. When the target object touches the electronic device, the position sensing component can generate a sensing signal and can send the sensing signal to the processor. Accordingly, the processor can receive the sensing signal and determine the contact position of the object and the electronic device based on the sensing signal. The components of the position sensing assembly can refer to the above embodiments, which are not repeated herein.

Step 202, the size of the first distance and the second distance is judged.

After determining the contact position of the target object and the electronic device, the electronic device may determine a first distance between the contact position and the first antenna and a second distance between the contact position and the second antenna. The electronic device may then compare the magnitudes of the first and second distances.

If the electronic device determines that the first distance is less than the second distance, step 203 may be executed. If the electronic device determines that the first distance is greater than the second distance, step 205 can be performed.

In this embodiment, after determining the contact position between the object and the electronic device, the electronic device may determine a first distance between the contact position and the first antenna based on the contact position and the first position of the first antenna, and may determine a second distance between the contact position and the second antenna based on the contact position and the second position of the second antenna. The first position of the first antenna and the second position of the second antenna can be stored in advance by the electronic device.

For example, assume that the first distance of the contact location from the first antenna is 2 centimeters (cm) and the second distance of the contact location from the second antenna is 3 cm. Since the first distance is smaller than the second distance, the processor of the electronic device may perform step 203. If the second distance between the contact position and the second antenna is 1.5cm, the electronic device may perform step 205 because the first distance is greater than the second distance.

Step 203, detecting whether the first distance is smaller than a distance threshold.

In this embodiment, after determining that the first distance is smaller than the second distance, that is, after determining that the first distance between the contact position of the object and the first antenna is smaller than the second distance between the contact position and the second antenna, the electronic device may detect whether the first distance between the contact position and the first antenna is smaller than a distance threshold. If the processor determines that the first distance is less than the distance threshold, step 204 may be performed. If the processor determines that the first distance is not less than the distance threshold, the operation may be ended without performing the operation of switching the rf path.

Optionally, after determining that the first distance is smaller than the distance threshold, the electronic device may further detect a radio frequency path currently used for communicating the radio frequency signal source and each antenna. If the rf signal source is currently connected to the first antenna and the second antenna through the second rf path, the electronic device may execute step 204. If the rf signal source is currently connected to the first antenna and the second antenna through the first rf path, the electronic device may end the operation.

For example, assuming that the distance threshold is 4cm, if the first distance is 2cm, the electronic device may determine that the first distance is less than the distance threshold, and then may perform step 205. If the first distance is 5cm, the electronic device may determine that the first distance is greater than the distance threshold, and may then end the operation, that is, without performing the operation of switching the radio frequency path.

Step 204, sending a first switch signal to the switch circuit.

The processor of the electronic device may send a first switching signal to the switching circuit upon determining that the first distance is less than the distance threshold. Correspondingly, after receiving the first switching signal, the switching circuit may control the first rf path to be turned on and control the second rf path to be turned off in response to the first switching signal.

In this embodiment, when the first rf path is turned on and the second rf path is turned off, the radiation intensity of the antenna system of the electronic device near the first antenna is smaller than the radiation intensity of the antenna system near the second antenna. That is, the SAR of the antenna system near the first antenna direction is smaller than the SAR near the second antenna direction, so that damage to the target object near the first antenna by the antenna system can be reduced.

Step 205, detecting whether the second distance is smaller than the distance threshold.

In an embodiment of the application, after determining that the first distance is greater than the second distance, the electronic device may detect whether the second distance between the contact position and the second antenna is less than a distance threshold. If the electronic device determines that the second distance is less than the distance threshold, step 206 can be performed. If the processor determines that the second distance is not less than the distance threshold, the operation may be ended without performing the operation of switching the rf path.

Optionally, after determining that the second distance is smaller than the distance threshold, the electronic device may further detect a radio frequency path currently used for communicating the radio frequency signal source with each antenna. If the rf signal source is currently connected to the first antenna and the second antenna through the first rf path, the electronic device may execute step 206. If the rf signal source is currently connected to the first antenna and the second antenna through the second rf path, the electronic device may end the operation.

For example, assuming that the distance threshold is 4cm, if the second distance is 3cm, then the electronic device may execute step 206 because the second distance is less than the distance threshold. If the second distance is 6cm, the electronic device may end the operation, that is, the operation of switching the radio frequency path is not required to be performed, because the second distance is greater than the distance threshold.

Step 206, sending a second switching signal to the switching circuit.

The processor of the electronic device may send a second switching signal to the switching circuit upon determining that the second distance is less than the distance threshold. Correspondingly, after receiving the second switching signal, the switching circuit may control the second rf path to be turned on and control the first rf path to be turned off in response to the second switching signal.

In this embodiment, the second rf path is turned on, and when the first rf path is turned off, the radiation intensity of the antenna system of the electronic device near the second antenna is smaller than the radiation intensity near the first antenna. That is, the SAR of the antenna system near the second antenna direction is smaller than the SAR near the first antenna direction, so that the damage of the antenna system to the target object near the second antenna can be reduced.

As can be seen from the above description, the electronic device may determine a first distance between the contact position of the target object and the first antenna, and a second distance between the contact position and the second antenna. Then, the electronic device may compare the first distance with the second distance, and if the first distance is smaller than the second distance, that is, the target object is closer to the first antenna, the electronic device controls the first radio frequency channel to be turned on, and controls the second radio frequency channel to be turned off; and if the first distance is greater than the second distance, namely the target object is closer to the second antenna, controlling the second radio frequency channel to be switched on and controlling the first radio frequency channel to be switched off. Therefore, the length of a path through which a radio-frequency signal provided by a radio-frequency signal source passes to an antenna close to a target object is larger than the length of a path through which the radio-frequency signal passes to an antenna far away from the target object, so that the maximum radiation direction of an antenna system comprising the first antenna and the second antenna is deviated to the position of the antenna far away from the target object, and further the damage of the antenna system to the target object close to the first antenna can be reduced on the premise of not reducing the communication performance of the electronic equipment.

It should be noted that, the order of the steps of the radio frequency path switching method for an electronic device provided in the embodiment of the present application may be appropriately adjusted, and the steps may also be increased or decreased according to the situation. For example, step 204 may also be deleted as appropriate. Any method that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application is covered by the protection scope of the present application, and thus the detailed description thereof is omitted.

To sum up, the embodiment of the present application provides a radio frequency path switching method for an electronic device, where when it is determined that a contact position between a target object and the electronic device is closer to a first antenna, the electronic device may control a first radio frequency path to be turned on and control a second radio frequency path to be turned off. Therefore, the path length of the radio-frequency signal provided by the radio-frequency signal source to reach the first antenna is larger than the path length of the radio-frequency signal to reach the second antenna, so that the SAR of an antenna system (comprising the first antenna and the second antenna) of the electronic device close to the first antenna direction is smaller than that close to the second antenna direction. And further, on the premise of not reducing the communication performance of the electronic equipment, the damage of the antenna system to the target object which is close to the first antenna can be effectively reduced.

Fig. 15 is a schematic structural diagram of another electronic device provided in an embodiment of the present application, and referring to fig. 15, the electronic device 110 may further include: a display unit 130, a Radio Frequency (RF) circuit 150, an audio circuit 160, a wireless fidelity (Wi-Fi) module 170, a bluetooth module 180, a power supply 190, a camera 121, and a processor 1101.

The camera 121 may be used to capture still pictures or video, among others. The object generates an optical picture through the lens and projects the optical picture to the photosensitive element. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The light sensitive elements convert the light signals into electrical signals which are then passed to the processor 1101 for conversion into digital picture signals.

The processor 1101 is a control center of the electronic device 110, connects various parts of the entire terminal with various interfaces and lines, and performs various functions of the electronic device 110 and processes data by running or executing software programs stored in the memory 140 and calling data stored in the memory 140. In some embodiments, processor 1101 may include one or more processing units; the processor 1101 may also integrate an application processor, which mainly handles operating systems, user interfaces, applications, etc., and a baseband processor, which mainly handles wireless communications. It will be appreciated that the baseband processor described above may not be integrated into the processor 1101. In this application, the processor 1101 may run an operating system and an application program, may control a user interface to display, and may implement the radio frequency path switching method of the electronic device provided in this application embodiment. Additionally, processor 1101 is coupled to input unit and display unit 130.

The display unit 130 may be used to receive input numeric or character information and generate signal inputs related to user settings and function control of the electronic device 110, and optionally, the display unit 130 may also be used to display information input by the user or information provided to the user and a Graphical User Interface (GUI) of various menus of the electronic device 110. The display unit 130 may include a display screen 131 disposed on the front surface of the electronic device 110. The display screen 131 may be configured in the form of a liquid crystal display, a light emitting diode, or the like. The display unit 130 may be used to display various graphical user interfaces described herein.

The display unit 130 includes: a display screen 131 and a touch screen 132 disposed on the front of the electronic device 110. The display screen 131 may be used to display preview pictures. Touch screen 132 may collect touch operations on or near by the user, such as clicking a button, dragging a scroll box, and the like. The touch screen 132 may be covered on the display screen 131, or the touch screen 132 and the display screen 131 may be integrated to implement the input and output functions of the electronic device 110, and after the integration, the touch screen may be referred to as a touch display screen for short.

Memory 140 may be used to store software programs and data. The processor 1101 executes various functions and data processing of the electronic device 110 by executing software programs or data stored in the memory 140. The memory 140 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 memory 140 stores an operating system that enables the electronic device 110 to operate. The memory 140 may store an operating system and various application programs, and may also store codes for executing the radio frequency channel switching method of the electronic device provided in the embodiment of the present application.

The RF circuit 150 may be used for receiving and transmitting signals during information transmission and reception or during a call, and may receive downlink data of a base station and then deliver the received downlink data to the processor 1101 for processing; the uplink data may be transmitted to the base station. Typically, the RF circuitry 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.

The audio circuitry 160, speaker 161, microphone 162 may provide an audio interface between a user and the electronic device 110. The audio circuit 160 may transmit the electrical signal converted from the received audio data to the speaker 161, and convert the electrical signal into a sound signal for output by the speaker 161. The electronic device 110 may also be configured with a volume button for adjusting the volume of the sound signal. On the other hand, the microphone 162 converts the collected sound signal into an electrical signal, converts the electrical signal into audio data after being received by the audio circuit 160, and then outputs the audio data to the RF circuit 150 to be transmitted to, for example, another terminal or outputs the audio data to the memory 140 for further processing. In this application, the microphone 162 may capture the voice of the user.

Wi-Fi is a short-range wireless transmission technology, and the electronic device 110 can help a user send and receive e-mails, browse webpages, access streaming media and the like through the Wi-Fi module 170, and provides wireless broadband Internet access for the user.

And the Bluetooth module 180 is used for performing information interaction with other Bluetooth devices with Bluetooth modules through a Bluetooth protocol. For example, the electronic device 110 may establish a bluetooth connection with a wearable electronic device (e.g., a smart watch) that is also equipped with a bluetooth module via the bluetooth module 180, thereby performing data interaction.

The electronic device 110 also includes a power supply 190 (e.g., a battery) to power the various components. The power supply may be logically coupled to the processor 1101 through a power management system to manage charging, discharging, and power consumption functions through the power management system. The electronic device 110 may also be configured with a power button for powering on and off the terminal, and locking the screen.

The electronic device 110 may include at least one sensor 1110, such as a motion sensor 11101, a distance sensor 11102, a fingerprint sensor 11103, and a temperature sensor 11104. The electronic device 110 may also be configured with other sensors such as gyroscopes, barometers, hygrometers, thermometers, and infrared sensors.

It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the electronic device and each device described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

Fig. 16 is a block diagram of a software structure of an electronic device according to an embodiment of the present application. The layered architecture divides the software into several layers, each layer having a clear role and division of labor. The layers communicate with each other through a software interface. In some embodiments, the android system is divided into four layers, an application layer, an application framework layer, an Android Runtime (ART) and system library, and a kernel layer from top to bottom.

The application layer may include a series of application packages. As shown in fig. 16, the application package may include camera, gallery, calendar, phone call, map, navigation, WLAN, bluetooth, music, video, short message, etc. applications. The application framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions.

As shown in FIG. 16, the application framework layers may include a window manager, content provider, view system, phone manager, resource manager, notification manager, and the like.

The window manager is used for managing window programs. The window manager can obtain the size of the display screen, judge whether a status bar exists, lock the screen, intercept the screen and the like.

The content provider is used to store and retrieve data and make it accessible to applications. The data may include video, pictures, audio, calls made and received, browsing history and bookmarks, phone books, etc.

The view system includes visual controls such as controls to display text, controls to display pictures, and the like. The view system may be used to build applications. The display interface may be composed of one or more views. For example, the display interface including the short message notification icon may include a view for displaying text and a view for displaying pictures.

The phone manager is used to provide communication functions for the electronic device 110. Such as management of call status (including on, off, etc.).

The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and the like.

The notification manager enables the application to display notification information in the status bar, can be used to convey notification-type messages, can disappear automatically after a short dwell, and does not require user interaction. Such as a notification manager used to inform download completion, message alerts, etc. The notification manager may also be a notification that appears in the form of a chart or scroll bar text at the top status bar of the system, such as a notification of a background running application, or a notification that appears on the screen in the form of a dialog window. For example, text information is prompted in the status bar, a prompt tone is given, the communication terminal vibrates, and an indicator light flashes.

The android runtime comprises a core library and a virtual machine. The android runtime is responsible for scheduling and management of the android system.

The core library comprises two parts: one part is a function which needs to be called by java language, and the other part is a core library of android.

The application layer and the application framework layer run in a virtual machine. And executing java files of the application program layer and the application program framework layer into a binary file by the virtual machine. The virtual machine is used for performing the functions of object life cycle management, stack management, thread management, safety and exception management, garbage collection and the like.

The system library may include a plurality of functional modules. For example: surface managers (surface managers), media libraries (media libraries), three-dimensional graphics processing libraries (e.g., openGL ES), 2D graphics engines (e.g., SGL), and the like.

The surface manager is used to manage the display subsystem and provide fusion of 2D and 3D layers for multiple applications.

The media library supports a variety of commonly used audio, video format playback and recording, and still picture files, etc. The media library may support a variety of audio-video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc.

The three-dimensional graphic processing library is used for realizing three-dimensional graphic drawing, picture rendering, synthesis, layer processing and the like.

The 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is a layer between hardware and software. The inner core layer at least comprises a display driver, a camera driver, an audio driver and a sensor driver.

The embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored, and the computer program is loaded by a processor and executes the radio frequency path switching method of the electronic device provided in the above embodiment, for example, the method shown in fig. 13 or fig. 14.

Embodiments of the present application further provide a computer program product including instructions, which, when the computer program product runs on a computer, causes the computer to execute the radio frequency path switching method of the electronic device provided in the foregoing method embodiments, for example, the method shown in fig. 13 or fig. 14.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

It should be understood that reference herein to "and/or" means that there may be three relationships, for example, a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. Also, the term "at least one" in the present application means one or more, and the term "a plurality" in the present application means two or more.

The terms "first," "second," and the like in this application are used for distinguishing between similar items and items that have substantially the same function or similar functionality, and it should be understood that "first," "second," and "nth" do not have any logical or temporal dependency or limitation on the number or order of execution. For example, a first antenna may be referred to as a second antenna, and similarly, a second antenna may be referred to as a first antenna, without departing from the scope of the various described examples.

The above description is only exemplary of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electronic device, characterized in that the electronic device comprises: the antenna comprises a radio frequency signal source, a first radio frequency channel, a second radio frequency channel, a first antenna, a second antenna, a switch circuit and a processor;

the processor is connected with the switch circuit and used for determining a contact position of a target object and the electronic equipment, and if the distance between the contact position and the first antenna is smaller than the distance between the contact position and the second antenna, a first switch signal is sent to the switch circuit;

the switch circuit is respectively connected with the first radio frequency channel and the second radio frequency channel and is used for responding to the first switch signal, controlling the first radio frequency channel to be connected and controlling the second radio frequency channel to be disconnected;

2. The electronic device of claim 1, wherein the operating frequency bands of the first antenna and the second antenna have overlapping frequency bands.

3. The electronic device of claim 2,

the difference value between the phase when the radio-frequency signal provided by the radio-frequency signal source passes through the first sub-passage and reaches the first antenna and the phase when the radio-frequency signal passes through the second sub-passage and reaches the second antenna is larger than or equal to-pi, smaller than or equal to pi and not equal to 0;

the difference value between the phase when the radio-frequency signal reaches the second antenna through the fourth sub-passage and the phase when the radio-frequency signal reaches the first antenna through the third sub-passage is larger than or equal to-pi, smaller than or equal to pi and not equal to 0.

4. The electronic device of claim 1, wherein the first and second sub-paths have a first overlapping section, and the third and fourth sub-paths have a second overlapping section; the switching circuit includes: a single pole double throw switch;

5. The electronic device of any of claims 1-4, further comprising: a position sensing assembly;

6. The electronic device of claim 5, wherein the position sensing component: a plurality of capacitive sensors, and at least two of the plurality of capacitive sensors are distributed on different sides of the electronic device.

7. The electronic device of any of claims 1-4, wherein the processor is configured to:

8. The electronic device of any of claims 1-4,

the processor is further configured to send a second switching signal to the switching circuit if it is determined that the distance between the contact position and the first antenna is greater than the distance between the contact position and the second antenna;

9. A radio frequency path switching method of an electronic device, applied to a processor of the electronic device, the electronic device further comprising: the radio frequency signal source is respectively connected with the first antenna and the second antenna through the first radio frequency channel and also respectively connected with the first antenna and the second antenna through the second radio frequency channel, and the switch circuit is respectively connected with the processor, the first radio frequency channel and the second radio frequency channel; the method comprises the following steps:

determining a contact position of a target object and the electronic equipment;

if the distance between the contact position and the first antenna is smaller than the distance between the contact position and the second antenna, sending a first switch signal to the switch circuit, wherein the first switch signal is used for indicating the switch circuit to control the first radio frequency channel to be connected and control the second radio frequency channel to be disconnected;

when the first radio frequency channel is connected and the second radio frequency channel is disconnected, the radiation intensity of the antenna system comprising the first antenna and the second antenna close to one side of the first antenna is smaller than that of the antenna system comprising the first antenna and the second antenna close to one side of the second antenna.

10. The method of claim 9, wherein sending a first switching signal to the switching circuit if the contact location is less than the distance from the first antenna than the contact location is from the second antenna comprises:

and if the distance between the contact position and the first antenna is smaller than the distance between the contact position and the second antenna and the distance between the contact position and the first antenna is smaller than a distance threshold, sending a first switching signal to the switching circuit.