Electronic device and method of controlling sar of electronic device

Abstract

The present disclosure relates to the technical field of electronic devices, and particularly relates to an electronic device and a method for controlling the SAR of the electronic device. The electronic device comprises a non-suspended antenna radiator, a touch panel, a sensing body, a SAR sensor and a controller. The non-suspended antenna radiator has a path capable of transmitting direct current between a ground terminal and / or a feeding terminal. The touch panel has a sensing unit, which is used to sense the distance between a user and the sensing unit and generate a first capacitance signal. The sensing body is arranged on the back side of the touch panel, and is used to sense the distance between the user and the sensing body and generate a second capacitance signal. The SAR sensor is connected with the sensing body and the sensing unit, and is used to receive the first capacitance signal and the second capacitance signal. The controller is connected with the SAR sensor, and is used to control the transmission power of the non-suspended antenna radiator according to the first capacitance signal and the second capacitance signal.

Description

Technical Field

[0001] This disclosure relates to the field of electronic equipment technology, and more specifically, to an electronic device and a method for controlling the electronic device SAR. Background Technology

[0002] With technological advancements, the application of 5G mobile terminals is becoming increasingly widespread. 5G mobile terminals contain a large number of antennas, and SAR (Specific Absorption Rate) compliance requirements are stringent. To avoid exceeding SAR limits, SAR testing of electronic devices is necessary. Therefore, an electronic device capable of SAR detection is required.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] The purpose of this disclosure is to provide an electronic device and a method for controlling the electronic device for SAR, the electronic device being capable of performing SAR detection.

[0005] According to one aspect of this disclosure, an electronic device is provided, the electronic device comprising:

[0006] A non-suspended antenna radiator, wherein the non-suspended antenna radiator has a path for transmitting DC current to the grounding terminal and / or the feed terminal;

[0007] A touch panel having a sensing unit for sensing the distance between the user and the sensing unit to generate a second capacitive signal;

[0008] A sensor is disposed on the back side of the touch panel, and the sensor is used to sense the distance between the user and the sensor to generate a first capacitance signal.

[0009] A SAR sensor is connected to the sensor and the sensing unit, and the SAR sensor is used to receive the first capacitance signal and the second capacitance signal;

[0010] A controller is connected to the SAR sensor and is used to adjust the transmission power of the non-suspended antenna radiator according to the first capacitor signal and the second capacitor signal.

[0011] According to another aspect of this disclosure, a method for controlling an electronic device SAR is provided, the method comprising:

[0012] The first capacitance signal sensed by the sensing unit and the second capacitance signal sensed by the sensing element are acquired. The sensing unit is disposed on the touch panel, and the sensing element is disposed on the back side of the touch panel.

[0013] When either the first capacitor signal or the second capacitor signal increases, the transmission power of the non-suspended antenna radiator is reduced. The non-suspended antenna radiator has a path for transmitting DC current with the grounding terminal and / or the feed terminal.

[0014] The electronic device provided in this disclosure generates a first capacitance signal based on the distance sensing between the user and the sensing unit, and a second capacitance signal based on the distance sensing between the user and the sensor. A SAR sensor receives the first and second capacitance signals. A controller controls the transmission power of a non-suspended antenna radiator based on the first and / or second capacitance signals. This enables the electronic device to detect SAR signals corresponding to antenna radiators with DC paths to the ground and / or feed terminals, thereby adjusting the transmission power of the non-suspended antenna radiator to ensure SAR compliance. Furthermore, the sensor can detect when the user approaches the back of the electronic device, and the sensing unit can detect when the user approaches the front of the electronic device. This avoids the problem of not being able to detect the user approaching from the front of the electronic device due to the shielding effect of the display device, achieving omnidirectional detection of the user's distance and thus improving the accuracy of SAR control.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0017] Figure 1 A schematic diagram of a first electronic device provided as an exemplary embodiment of this disclosure;

[0018] Figure 2 A schematic diagram of a second electronic device provided as an exemplary embodiment of this disclosure;

[0019] Figure 3 A schematic diagram of a third electronic device provided as an exemplary embodiment of this disclosure;

[0020] Figure 4 A schematic diagram of a touch panel provided for an exemplary embodiment of this disclosure;

[0021] Figure 5 A schematic diagram of another touch panel provided as an exemplary embodiment of this disclosure;

[0022] Figure 6 A schematic diagram of a fourth electronic device provided as an exemplary embodiment of this disclosure;

[0023] Figure 7 A flowchart of a method for controlling an electronic device SAR provided as an exemplary embodiment of this disclosure;

[0024] Figure 8 A flowchart of another method for controlling an electronic device SAR provided as an exemplary embodiment of this disclosure. Detailed Implementation

[0025] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0026] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0027] The electromagnetic absorption ratio (SAR) is defined as the electromagnetic power absorbed or consumed per unit mass of human tissue under the influence of an external electromagnetic field, measured in W / kg. For the protection of human health, it is necessary to monitor the status of electronic devices and users. Since the human body is a conductor, when a human body approaches a conductor on an electronic device, the capacitance induced in the conductor within the electronic device changes. The proximity of the human body is detected by measuring this change in capacitance.

[0028] When a human body approaches an electronic device, the body part forms a capacitor with the conductor on the electronic conductor, with the parts of the body and the conductor facing each other acting as capacitor plates. The capacitance values ​​of the two capacitor plates are shown in the following formula:

[0029]

[0030] d is the distance between the two plates, S is the area of ​​the two capacitor plates facing each other, and k is the electrostatic constant. According to the capacitance formula, when d decreases, the capacitance C increases; when d increases, the capacitance C increases. Therefore, the distance between the human body and the electronic device can be detected by the conductor part on the electronic device.

[0031] This disclosure first provides an electronic device, such as... Figure 1 and Figure 2 As shown, the electronic device includes: a non-suspended antenna radiator 110, a touch panel 120, a sensor 130, a SAR sensor 140, and a controller 150. The non-suspended antenna radiator 110 has a path for transmitting DC current to a ground terminal and / or a feed terminal. The touch panel 120 has a sensing unit 121, which generates a first capacitance signal by sensing the distance between the user and the sensing unit 121. The sensor 130 is located on the back side of the touch panel 120 and generates a second capacitance signal by sensing the distance between the user and the sensor 130. The SAR sensor 140 is connected to the sensor 130 and the sensing unit 121 and receives the first capacitance signal and the second capacitance signal. The controller 150 is connected to the SAR sensor 140 and adjusts the transmission power of the non-suspended antenna radiator 110 according to the first capacitance signal and the second capacitance signal.

[0032] In the electronic device provided in this embodiment, the sensor 130 is used to detect whether a user approaches the electronic device from the back of the electronic device, and the sensing unit 121 is used to detect whether a user approaches the electronic device from the front of the electronic device.

[0033] The electronic device provided in this embodiment generates a first capacitance signal based on the distance sensing between the user and the sensing unit 121, and a second capacitance signal based on the distance sensing between the user and the sensor 130. The SAR sensor 140 receives the first capacitance signal and / or the second capacitance signal. The controller 150 controls the transmission power of the non-suspended antenna radiator 110 based on the first and second capacitance signals. The first and second capacitance signals are positively correlated with the SAR of the electronic device, thereby enabling the electronic device to detect the SAR signal corresponding to the antenna radiator with a DC path to the ground terminal and / or feed terminal. This allows the electronic device to adjust the transmission power of the non-suspended antenna radiator 110 to ensure SAR compliance. Furthermore, the sensor 130 can sense the user approaching the back of the electronic device, and the sensing unit 121 can sense the user approaching the front of the electronic device. This avoids the problem of not being able to detect the user approaching from the front of the electronic device due to the shielding effect of the display device, achieving omnidirectional detection of the user's distance and thus improving the accuracy of SAR control.

[0034] The following will describe in detail the various parts of the electronic device provided in the embodiments of this disclosure:

[0035] In this embodiment, the non-suspended antenna radiator 110 cannot be directly used for SAR detection. The non-suspended antenna radiator 110 has a DC path with the ground terminal and / or the feed terminal. This can be understood as allowing DC current to be transmitted between the non-suspended antenna radiator and at least one of the ground terminal and the feed terminal. That is, the non-suspended antenna radiator 110 is connected to the ground terminal, and no DC blocking device (such as a capacitor) is provided between the non-suspended antenna radiator 110 and the ground terminal. Alternatively, the non-suspended antenna radiator 110 is connected to the feed terminal, and no DC blocking device (such as a capacitor) is provided between the non-suspended antenna radiator 110 and the feed terminal. Alternatively, the non-suspended antenna radiator 110 is connected to both the feed terminal and the ground terminal, and no DC blocking device (such as a capacitor) is provided between the non-suspended antenna radiator 110 and the feed terminal and the ground terminal. The feed terminal refers to the terminal that provides a feed signal to the non-suspended antenna radiator 110, and the feed terminal is typically connected to an RF circuit.

[0036] like Figure 3 As shown, the non-suspended antenna radiator 110 can be disposed on the frame of the electronic device. For example, the non-suspended antenna radiator 110 can be a branch on the metal frame. Alternatively, the non-suspended antenna radiator 110 can also be disposed on the back cover or other parts of the electronic device. The embodiments disclosed herein are not limited thereto.

[0037] Because the non-suspended antenna radiator 110 has a DC path to the grounding terminal and / or the feed terminal, the SAR sensor 140 cannot accurately detect the capacitance signal induced by the non-suspended antenna radiator 110 when a human body approaches or moves away from it. Therefore, the capacitance signal can be detected by the sensor 130 and / or the sensing unit 121. The distance between the sensor 130 and the sensing unit 121 and the antenna radiator is less than a preset distance threshold, so that the capacitance signal sensed by the sensor 130 and the sensing unit 121 when a human body approaches or moves away from the non-suspended antenna radiator 110 can represent whether the human body is approaching or moving away from the non-suspended antenna radiator 110.

[0038] SAR sensor 140 can be a capacitive sensor, and controller 150 can be a microprocessor (MCU), single-chip microcomputer, or processor (CPU), etc. It should be noted that the SAR sensor 140 and controller 150 provided in this embodiment can be integrated into the same module (for example, the SAR sensor 140 and controller 150 can be integrated on the same chip), or the SAR sensor 140 and controller 150 can be set independently; this embodiment does not specifically limit this.

[0039] The material of the sensor 130 can be a conductive material or a semiconductor material such as ceramic ferrite, and this embodiment is not limited thereto. That is, the material of the sensor 130 can be any material that can generate a change in capacitance with the human body, and is not limited to a conductive material.

[0040] The controller 150 controls the transmission power of the non-suspended antenna radiator 110 based on the first capacitor signal and the second capacitor signal. When either the first capacitor signal or the second capacitor signal increases, the controller 150 controls the non-suspended antenna radiator 110 to reduce its transmission power.

[0041] Furthermore, the controller 150 is also used to detect the operating state of the non-suspended antenna radiator 110, and control the sensing unit 121 to switch to the operating state when the non-suspended antenna radiator 110 is operating in the transmitting state. The controller 150 controls the sensing unit 121 to not operate when the non-suspended antenna radiator 110 is operating in the non-transmitting state.

[0042] The controller 150 can determine the operating state of the antenna radiator according to the antenna control algorithm. When the non-suspended antenna radiator 110 is in the transmitting state, the controller 121 is powered on to the operating state. When the non-suspended antenna radiator 110 is in the receiving state or the antenna radiator is not working, the sensor 121 is also not working, which can save power.

[0043] A power switch is provided between the sensing unit 121 and the power module. The power switch is connected to the controller 150. When the non-suspended antenna radiator 110 is in the transmitting state, the power switch is turned on. When the non-suspended antenna radiator 110 is in the receiving state or the non-suspended antenna radiator 110 is not working, the power switch is turned off.

[0044] It should be noted that, in the embodiments of this disclosure, the controller may include one or more control units. The control unit that detects the working state of the non-suspended antenna radiator 110 and the controller that controls the sensing unit 121 may be the same control unit (e.g., CPU), or the control unit that detects the working state of the non-suspended antenna radiator 110 and the controller that controls the sensing unit 121 may be different control units (e.g., CPU and MCU). The embodiments of this disclosure do not specifically limit this.

[0045] like Figure 2As shown, the touch panel 120 may include a touch layer 21 and a display layer 22. A sensing unit 121 is disposed on the touch layer 21, which is located on the light-emitting side of the display layer 22. A sensor 130 is disposed on the side of the display layer 22 away from the touch layer 21. The display layer 22 has a conductive layer that can shield signals. For example, when a person approaches the electronic device from the front, the display layer 22 will shield the signal, preventing the sensor 130 from detecting the user's approach. By providing the sensing unit 121 on the touch panel 120 and the sensor 130 on the back side of the touch panel 120, the detection of user approach from both the front and back of the electronic device is achieved, solving the problem of inaccurate detection caused by the shielding effect of the display layer 22.

[0046] The touch panel 120 can be a capacitive touch panel 120, and a sensing unit 121 is provided on the touch panel 120. The sensing unit 121 is connected to the SAR sensor 140. When the user approaches the sensing unit 121, the sensing unit 121 and the user form a capacitance, and the SAR sensor 140 detects the capacitance of the sensing unit 121.

[0047] The sensing unit 121 is disposed on the touch layer 21. The sensing unit 121 can be used to sense and generate a first capacitance signal. Alternatively, the sensing unit 121 can sense and generate a first capacitance signal when the user does not touch the touch panel 120, and the sensing unit 121 can detect a touch signal when the user touches the touch panel 120.

[0048] like Figure 4 As shown, the touch layer 21 includes a plurality of first electrodes 211 disposed along a first direction and a plurality of second electrodes 212 extending along a second direction. The sensing unit 121 may be either the first electrode 211 or the second electrode 212. For example, when the antenna radiator is a conductor branch disposed along the first direction on the frame of the electronic device, the sensing unit 121 may be the first electrode 211 closest to the antenna radiator among the plurality of first electrodes 211.

[0049] When the sensing unit 121 has the functions of sensing the first capacitor signal and detecting the touch signal, the electronic device also includes a switching circuit. The switching circuit is connected to the sensing unit 121, the SAR sensor 140 and the touch circuit respectively. When the user touches the sensing unit 121, the switching circuit turns on the sensing unit 121 and the touch circuit to transmit the touch signal to the touch circuit. When the user does not touch the sensing unit 121, the switching circuit turns on the sensing unit 121 and the SAR sensor 140 to transmit the touch signal to the SAR sensor 140.

[0050] The switching circuit may include a first switch and a second switch, both connected to the sensing unit 121. The first switch is also connected to a touch current source, and the second switch is connected to a SAR sensor 140. When the sensing unit 121 is used to sense a first capacitor signal, the first switch is off, the second switch is on, and there is no input current on the first electrode 211, which is only used to sense the user's distance. When the sensing unit 121 is used to detect a touch signal, the first switch is on, the second switch is off, and a touch current is formed on the first electrode 211. When the user touches the electrode, the touch current changes, and the second electrode 212 senses the change in touch current to generate a touch signal.

[0051] It is understandable that, such as Figure 5 As shown, the sensing unit 121 can also be a device in the touch layer 21 that is independent of the first electrode 211 and the second electrode 212. The sensing unit 121 is used to detect the first capacitance signal. For example, the sensing unit 121 is a transparent conductive sheet, and the sensing capacitance unit can be disposed in the gap between the first electrode 211 and the second electrode 212. The sensing unit 121 may include multiple conductive sheets, and the multiple transparent conductive sheets are disposed in the gaps between multiple first electrodes 211 and second electrodes 212.

[0052] The touch panel 120 can also be an optical touch panel 120 (e.g., an infrared touch panel 120 or an ultrasonic touch panel 120, etc.). When the touch panel 120 is an optical touch panel 120, such as Figure 6 As shown, the touch layer 21 is located on the side of the display layer 22 away from the light-emitting side, the sensing unit 121 is located on the display layer 22, and the sensor 130 is located on the side of the touch layer 21 away from the display layer 22.

[0053] The sensing unit 121 can be located on the side of the electrode layer in the display layer 22 away from the substrate. The sensing unit 121 can be made of a transparent conductive material (such as ITO). The sensing unit 121 is connected to the driving circuit layer via a via. Signal lines are provided in the driving circuit layer, connecting the vias and the SAR sensor 140. The vias can be located at positions corresponding to the pixel definition layer or the black matrix layer to avoid pixel units.

[0054] The touch layer 21 includes a light emitting unit and a light receiving unit. The light emitting unit emits detection light (such as infrared or ultrasonic light), and the light receiving unit receives the reflected detection light. When a user touches the touch panel 120, the user's finger reflects the detection light emitted by the emitting unit to the receiving unit. The position of the user's touch is determined based on the position of the receiving unit that receives the reflected light.

[0055] The touch panel 120 may include a SAR sensing area and a touch sensing area. The sensing unit 121 is disposed in the SAR sensing area, and the projection of the sensor 130 on the touch panel 120 coincides with the SAR sensing area.

[0056] The SAR sensing area corresponds to the non-suspended antenna radiator 110. For example, the SAR sensing area can be located in an area adjacent to the non-suspended antenna radiator 110, or the distance between the SAR sensing area and the non-suspended antenna radiator 110 can be less than a preset distance threshold. The projection of the sensor 130 on the touch panel 120 at least partially overlaps with the SAR sensing area, which enables the capacitive signals detected by the electronic device on the front and back to be symmetrical, facilitating control.

[0057] The electronic device may include one or more non-suspended antenna radiators 110, and correspondingly, the number of sensing elements 121 and sensing elements 130 may be one or more. The number of non-suspended antenna radiators 110 is the same as the number of sensing elements 121, and the number of sensing elements 130 is the same as the number of sensing elements 121.

[0058] Furthermore, such as Figure 3 As shown, the electronic device also includes a frame, which includes a first side 210, a bottom edge 220, a second side 230, and a top edge 240 that are connected end to end in sequence.

[0059] The electronic device includes a first non-suspended antenna radiator 111 and a second non-suspended antenna radiator 112. The first non-suspended antenna radiator 111 is disposed on a first side 210; the second non-suspended antenna radiator 112 is disposed on a second side 230. The touch panel 120 includes a first SAR sensing area and a second SAR sensing area. The distance between the first sensing area and the first non-suspended antenna radiator 111 is less than a first distance threshold, and the distance between the second sensing area and the second non-suspended antenna radiator 112 is less than a second distance threshold.

[0060] The first non-suspended antenna radiator 111 has a path for transmitting DC current to the grounding end and / or the feed end, and the second non-suspended antenna radiator 112 has a path for transmitting DC current to the grounding end and / or the feed end. A first sensing unit 1211 is provided at the corresponding position of the first SAR sensing area, and a second sensing unit 1212 is provided at the corresponding position of the second SAR sensing area.

[0061] Based on this, the electronic device includes a first sensor and a second sensor. The first sensor is disposed on the back side of the touch panel 120, and the projection of the first sensor on the touch panel 120 at least partially overlaps with the first SAR sensing area. The second sensor is disposed on the back side of the touch panel 120, and the projection of the second sensor on the touch panel 120 at least partially overlaps with the second SAR sensing area.

[0062] The first sensor, the second sensor, the first sensing unit 1211 and the second sensing unit 1212 can be connected to the same SAR sensor 140. The SAR sensor 140 can have multiple channels, and each channel is connected to one of the first sensor, the second sensor, the first sensing unit 1211 and the second sensing unit 1212 respectively.

[0063] For example, the SAR sensor 140 is connected to 5 channels. The channels of the SAR sensor 140 can be specifically allocated according to the number of conductor stubs (antenna radiators, sensors 130, and sensing elements 121) of the electronic device. For instance, a single 5-channel SAR sensor 140 can be used with 1 conductor stub (1 detection channel, 0-1 differential temperature auxiliary channels), 2 conductor stubs (2 detection channels, 0-2 differential temperature auxiliary channels), or 3 conductor stubs (3 detection channels, 2 differential temperature auxiliary channels), etc. The conductor stubs can be sensors or sensing elements.

[0064] Alternatively, the SAR sensor 140 can be connected to 8 channels. An 8-channel SAR sensor 140 can be applied to 3 conductor stubs (3 detection channels, 0-3 differential temperature auxiliary channels), 4 conductor stubs (4 detection channels, 0-4 differential temperature auxiliary channels), or 5 conductor stubs (5 detection channels, 0-3 differential temperature auxiliary channels), etc. When connecting the sensor 130, sensing unit 121, or non-suspended antenna radiator 110 to the SAR sensor 140, the trace from the input pin of the SAR sensor 140 to the conductor stub should be as short as possible. To minimize the influence of environmental capacitance, if the distance exceeds a set distance, such as 10mm, a temperature compensation channel needs to be added.

[0065] When the distance between the non-suspended antenna radiator 110, sensing unit 121 or sensing unit 130 and SAR sensor 140 is greater than the third distance threshold, the non-suspended antenna radiator 110, sensing unit 121 or sensing unit 130 and SAR sensor 140 are connected through a dual connection of detection channel and auxiliary channel; when the distance between the non-suspended antenna radiator 110, sensing unit 121 or sensing unit 130 and SAR sensor 140 is less than or equal to the third distance threshold, the non-suspended antenna radiator 110, sensing unit 121 or sensing unit 130 and SAR sensor 140 are connected through detection channel.

[0066] For example, when the distance between the first sensor and the SAR sensor 140 is less than or equal to a third distance threshold, the first sensor and the SAR sensor 140 are connected through a detection channel. When the distance between the first sensor and the SAR sensor 140 is greater than the third distance threshold, the second sensor and the SAR sensor 140 are differentially connected through a detection channel and an auxiliary channel. Similarly, when the distance between the first sensing unit 1211 and the SAR sensor 140 is less than or equal to the third distance threshold, the first sensing unit 1211 and the SAR sensor 140 are connected through a detection channel. When the distance between the first sensing unit 1211 and the SAR sensor 140 is greater than the third distance threshold, the first sensing unit 1211 and the SAR sensor 140 are differentially connected through a detection channel and an auxiliary channel.

[0067] To increase detection accuracy, the wiring paths of the detection channel and auxiliary channel are consistent, thereby avoiding the influence of the environment on the detection results. Differential connections suppress common-mode signals, and the differential connection method is insensitive to temperature, thus avoiding the influence of ambient temperature on the detection results.

[0068] Furthermore, the electronic device also includes a suspended antenna radiator, which can be directly used for SAR detection. There is no DC path between the suspended antenna radiator and the feed terminal, and there is no DC path between the suspended antenna radiator and the ground terminal. That is, the suspended antenna radiator and the feed terminal are not connected (coupled), or a DC blocking device (capacitor) is provided between them; and the suspended antenna radiator and the ground terminal are not connected, or a DC blocking device (capacitor) is provided between them.

[0069] For example, the electronic device may also include a first suspended antenna radiator 160, a second suspended antenna radiator 170, and a third suspended antenna radiator 180. The first suspended antenna radiator 160 is connected to the SAR sensor 140. The first suspended antenna radiator 160 includes a first conductor segment 161 and a second conductor segment 162, which are connected. The first conductor segment 161 is located on a first side 210, and the second conductor segment 162 is located on a top side 240. The second suspended antenna radiator 170 is connected to the SAR sensor 140. The antenna radiator 170 includes a third conductor segment 171 and a fourth conductor segment 172, which are connected. The third conductor segment 171 is located on the second side 230, and the fourth conductor segment 172 is located on the top side 240. The third suspended antenna radiator 180 is connected to the SAR sensor 140. The third suspended antenna radiator 180 includes a fifth conductor segment 181 and a sixth conductor segment 182, which are connected. The fifth conductor segment 181 is located on the second side 230, and the sixth conductor segment 182 is located on the bottom side 220.

[0070] The first suspended antenna radiator 160, the second suspended antenna radiator 170, and the third suspended antenna radiator 180 are respectively connected to the SAR sensor 140. There is no DC path between the first suspended antenna radiator 160, the second suspended antenna radiator 170, and the third suspended antenna radiator 180 and the feed terminal, and there is no DC path between the first suspended antenna radiator 160, the second suspended antenna radiator 170, and the third suspended antenna radiator 180 and the ground terminal.

[0071] The first suspended antenna radiator 160, the second suspended antenna radiator 170, and the third suspended antenna radiator 180 can be directly used for SAR detection. In this embodiment, SAR detection on all six sides of the electronic device is achieved through the first suspended antenna radiator 160, the second suspended antenna radiator 170, the third suspended antenna radiator 180, the first sensor, the second sensor, the first sensing unit 1211, and the second sensing unit 1212.

[0072] In one feasible embodiment of this disclosure, the sensor 130 may be a parasitic stub coupled to the non-suspended antenna radiator 110. This parasitic stub is capable of directly detecting SAR. The parasitic stub may be suspended for direct current, and it is connected to the SAR sensor 140. When a user approaches or moves away from the non-suspended antenna radiator 110, the capacitance signal generated by the parasitic stub sensing the human body changes. The SAR sensor 140 detects this change in capacitance value, and the controller 150 controls the power of the non-suspended antenna radiator 110 based on this change in capacitance signal.

[0073] For example, the parasitic stub could be a flexible circuit board stub coupled to the non-suspended antenna radiator 110, and the flexible circuit board stub is suspended. The flexible circuit board can extend from the motherboard of the electronic device to the non-suspended antenna radiator 110.

[0074] When the sensor 130 and the non-suspended antenna radiator 110 are coupled, the distance threshold between the sensor 130 and the non-suspended antenna radiator 110 can be 2mm, 3mm, or 5mm, etc. In practical applications, the capacitance signal sensed by the sensor 130 can be compensated according to the preset distance threshold, so that the capacitance signal sensed by the sensor 130 can accurately reflect the positional relationship between the human body and the non-suspended antenna radiator 110.

[0075] In another feasible embodiment of this disclosure, the sensor 130 is not coupled to the non-suspended antenna radiator 110. Here, non-coupling of the sensor 130 and the non-suspended antenna radiator 110 means that there is no effective current between the sensor 130 and the non-suspended antenna radiator 110. The sensor 130 may be a conductive sheet disposed on the back of the touch panel 120, or the sensor 130 may be shared by other conductive devices in the electronic device. The conductive device is disposed within a preset distance threshold from the antenna radiator, and the conductive device is suspended (not grounded or grounded through a DC blocking element). For example, the sensor 130 may include one or more of the following: a flexible circuit board, volume buttons, a power button, a fingerprint module, a receiver, a speaker module, a camera module, a wireless charging module, a motherboard bracket, a small board bracket, an NFC module, a camera decorative ring, an electroacoustic module, and a conductor tray.

[0076] When the sensor 130 and the non-suspended antenna radiator 110 are not coupled, the distance threshold between the sensor 130 and the non-suspended antenna radiator 110 can be 8mm, 9mm, or 10mm, etc. In practical applications, the capacitance signal sensed by the sensor 130 can be compensated according to the distance threshold, so that the capacitance signal sensed by the sensor 130 can accurately reflect the positional relationship between the human body and the antenna radiator.

[0077] When the sensor 130 is a volume button, the volume button is made of a conductive material, such as aluminum alloy, stainless steel, or copper. The volume button can be located on the frame of the electronic device. An insulating coating can be applied to the area where the volume button contacts the frame to allow the volume button to float.

[0078] One approach is to create a through-hole on the side frame of the electronic device, through which the volume buttons enter the device and connect to the volume control circuitry. To isolate the volume buttons from the frame, an insulating material can be coated onto the surface of the volume buttons. Alternatively, in practical applications, the inner wall of the through-hole on the frame can also be coated with insulating material.

[0079] When the sensor 130 is a power button, the power button is made of a conductive material, such as aluminum alloy or stainless steel. The power button can be located on the frame of the electronic device. An insulating coating can be applied to the area where the power button contacts the frame to allow the power button to float.

[0080] One approach is to create a through-hole on the side frame of the electronic device, through which the power button enters the device and connects to the power-on circuit. To isolate the power button from the frame, an insulating material can be coated onto the surface of the power button. Alternatively, in practical applications, the inner wall of the through-hole on the frame can also be coated with insulating material.

[0081] When the sensor 130 is a motherboard bracket, the motherboard bracket can be made of a conductive material, such as aluminum alloy, copper, or stainless steel. The motherboard bracket can be located on the middle frame, and the motherboard is mounted on the motherboard bracket. Since both the middle frame and the motherboard are grounded, the motherboard bracket, the motherboard, and the middle frame need to be insulated. For example, the motherboard bracket has a first contact portion and a second contact portion. The first contact portion contacts the middle frame, and the second contact portion connects to the motherboard. Insulating material can be coated onto the first and second contact portions of the motherboard bracket to form an insulating layer.

[0082] When the inductor 130 is a small board support, the material of the small board support can be a conductive material, such as aluminum alloy, copper, or stainless steel. The small board support can be located on the middle frame, and the small board is mounted on the small board support. Since both the middle frame and the small board are grounded, the small board support, the small board, and the middle frame need to be insulated. For example, the small board support has a first contact portion and a second contact portion. The first contact portion contacts the middle frame, and the second contact portion connects to the small board. Insulating material can be coated on the first and second contact portions of the small board support to form an insulating layer.

[0083] When the sensor 130 is a card tray, the card tray may have a conductive part, which may be made of aluminum alloy, copper, or stainless steel, etc. The card tray may include a conductive part, a connecting part, and a receiving part. The two ends of the connecting part are connected to the conductive part and the receiving part, respectively. The receiving part is used to hold a readable electronic card. When installed in an electronic device, the conductive part is exposed to the frame of the electronic device. A through-hole may be provided on the frame of the electronic device, and the conductive part extends into the through-hole. An insulating layer may be provided on the sidewall of the conductive part, which refers to the portion opposite to the through-hole. The connecting part may be made of insulating material. Since a grounding point is provided on the receiving part, the conductive part and the receiving part are isolated by the connecting part. The SAR sensor 140 may be connected to the conductive part.

[0084] In this embodiment, a user's approach to an electronic device is detected by a first sensor, a second sensor, a first sensing unit 1211, a second sensing unit 1212, a first suspended antenna radiator 160, a second suspended antenna radiator 170, and a third suspended antenna radiator 180. The controller 150 can control the multiple antenna radiators to adjust their transmission power according to their respective SAR values.

[0085] For example, when the capacitance signal received by the controller 150 from the sensor 130 or the sensing unit 121 increases, and the capacitance signal sensed by the multiple suspended antenna radiators remains unchanged, the controller 150 controls the non-suspended antenna radiator 110 to reduce its transmission power and controls the suspended antenna radiator to operate at full power.

[0086] When the capacitance signal received by the controller 150 from the sensor 130 or the sensing unit 121 increases, and the capacitance signal sensed by at least one of the multiple suspended antenna radiators increases, the controller 150 controls the non-suspended antenna radiator 110 to reduce its transmission power, and controls the suspended antenna radiator with the increased capacitance signal to reduce its transmission power, while the remaining suspended antenna radiators operate at full power.

[0087] When the capacitance signals received by the controller 150 from the sensor 130 and the sensing unit 121 remain unchanged, and the capacitance signal induced by at least one of the multiple suspended antenna radiators increases, the controller 150 controls the non-suspended antenna radiator 110 to operate at full power, and controls the suspended antenna radiator with the increased capacitance signal to reduce its transmission power, while the remaining suspended antenna radiators operate at full power.

[0088] This technology enables independent control of the transmission power of each antenna radiator based on the location relationship between the user and the electronic device. On the one hand, it achieves SAR compliance, and on the other hand, it avoids the problem of reduced communication performance of electronic devices caused by board-level power reduction, thereby improving the communication performance of electronic devices.

[0089] It should be noted that the electronic devices provided in this disclosure can be mobile phones, tablets, desktop computers, smartphones, e-book readers, multimedia players, cameras, or wearable devices, but are not limited to these. Wearable devices include accessories such as watches, bracelets, glasses, necklaces, and head-mounted electronic devices, as well as clothing such as smart electronic clothing and implantable biological devices. This disclosure does not specifically limit these categories.

[0090] The electronic device provided in this embodiment generates a first capacitance signal based on the distance sensing between the user and the sensing unit 121, and a second capacitance signal based on the distance sensing between the user and the sensor 130. The SAR sensor 140 receives the first and second capacitance signals, and the controller 150 controls the transmission power of the non-suspended antenna radiator 110 based on the first and / or second capacitance signals. This enables the electronic device to detect the SAR signal corresponding to the non-suspended antenna radiator 110, which has a DC path to the ground terminal and / or feed terminal. Consequently, the transmission power of the non-suspended antenna radiator 110 can be adjusted to ensure SAR compliance. Furthermore, the sensor 130 can sense the user approaching the back of the electronic device, and the sensing unit 121 can sense the user approaching the front of the electronic device. This avoids the problem of not being able to detect the user approaching from the front of the electronic device due to the shielding effect of the display device, achieving omnidirectional detection of the user's distance and thus improving the accuracy of SAR control.

[0091] This disclosure also includes an exemplary embodiment of a method for controlling an electronic device SAR, such as... Figure 7 As shown, a method for controlling the SAR of electronic devices may include the following steps:

[0092] Step S710: Obtain the first capacitance signal sensed by the sensing unit and / or the second capacitance signal sensed by the sensing element. The sensing unit is located on the touch panel, and the sensing element is located on the back side of the touch panel.

[0093] Step S720: When either the first capacitor signal or the second capacitor signal increases, the transmission power of the non-suspended antenna radiator is reduced. The non-suspended antenna radiator has a path for transmitting DC current with the ground terminal and / or the feed terminal.

[0094] The SAR control method for electronic devices provided in this disclosure generates a first capacitance signal based on the distance sensing between the user and the sensing unit 121, and a second capacitance signal based on the distance sensing between the user and the sensor 130. The SAR sensor 140 receives the first capacitance signal and / or the second capacitance signal. The controller 150 controls the transmission power of the non-suspended antenna radiator 110 based on the first and second capacitance signals. The first and second capacitance signals are positively correlated with the SAR signal, enabling the electronic device to detect the SAR signal corresponding to the non-suspended antenna radiator 110, which has a DC path to the ground terminal and / or feed terminal. This allows the electronic device to adjust the transmission power of the non-suspended antenna radiator 110 to ensure SAR compliance. Furthermore, the sensor 130 can sense the user approaching the back of the electronic device, and the sensing unit 121 can sense the user approaching the front of the electronic device. This avoids the problem of not being able to detect the user approaching from the front of the electronic device due to the shielding effect of the display device, achieving omnidirectional detection of the user's distance and thus improving the accuracy of SAR control.

[0095] Furthermore, such as Figure 8 As shown, the method for controlling the SAR of an electronic device provided in this disclosure embodiment may include the following steps:

[0096] Step S730: Detect the working state of the non-suspended antenna radiator, and switch the sensing unit to the working state when the non-suspended antenna radiator is in the transmitting state, and switch the sensing unit to the non-working state when the non-suspended antenna radiator is in the non-transmitting state.

[0097] By switching the sensing unit 121 to the working state when the non-suspended antenna radiator 110 is in the transmitting state, and turning off the power to the corresponding sensing unit 121 when the non-suspended antenna radiator 110 is in the receiving or non-working state, power can be saved and the battery life of electronic devices can be improved.

[0098] The method for controlling SAR in electronic devices provided in this disclosure is used in the aforementioned electronic devices.

[0099] In step S710, the first capacitance signal sensed by the sensing unit 121 and / or the second capacitance signal sensed by the sensor 130 can be obtained. The sensing unit 121 is disposed on the touch panel 120, and the sensor 130 is disposed on the back side of the touch panel 120.

[0100] The first capacitance signal is the capacitance signal generated by the sensing unit 121 in response to the user's approach, especially when the user approaches the electronic device from the front of the electronic device.

[0101] The touch panel 120 includes a sensing unit 121, which generates a first capacitive signal by sensing the distance between the user and the sensing unit 121. The touch panel 120 may include a touch layer 21 and a display layer 22. The touch layer 21 is located on the light-emitting side of the display layer 22, and the sensor 130 is located on the side of the display layer 22 away from the touch layer 21. The display layer 22 has a conductive layer that can shield signals. For example, when a human body approaches the electronic device from the front, the display layer 22 will shield the signal, preventing the sensor 130 from detecting the user's approach. By providing the sensing unit 121 on the touch panel 120 and the sensor 130 on the back side of the touch panel 120, the detection of user proximity to the front and back of the electronic device is achieved, solving the problem of inaccurate detection caused by the shielding effect of the display layer 22.

[0102] The touch panel 120 can be a capacitive touch panel 120, and a sensing unit 121 is provided on the touch panel 120. The sensing unit 121 is connected to the SAR sensor 140. When the user approaches the sensing unit 121, the sensing unit 121 and the user form a capacitor, and the SAR sensor 140 detects the capacitance of the sensing unit 121.

[0103] The sensing unit 121 is disposed on the touch layer 21. The sensing unit 121 can be used to sense and generate a first capacitance signal. Alternatively, the sensing unit 121 can sense and generate a first capacitance signal when the user does not touch the touch panel 120, and the sensing unit 121 can detect a touch signal when the user touches the touch panel 120.

[0104] The touch layer 21 includes a plurality of first electrodes 211 disposed along a first direction and a plurality of second electrodes 212 extending along a second direction. The sensing unit 121 may be either the first electrode 211 or the second electrode 212. For example, when the antenna radiator is a conductor stub disposed along the first direction on the frame of an electronic device, the sensing unit 121 may be the first electrode 211 closest to the antenna radiator among the plurality of first electrodes 211.

[0105] When the sensing unit 121 has the functions of sensing the first capacitor signal and detecting the touch signal, the electronic device also includes a switching circuit. The switching circuit is connected to the sensing unit 121, the SAR sensor 140 and the touch circuit respectively. When the user touches the sensing unit 121, the switching circuit turns on the sensing unit 121 and the touch circuit to transmit the touch signal to the touch circuit. When the user does not touch the sensing unit 121, the switching circuit turns on the sensing unit 121 and the SAR sensor 140 to transmit the touch signal to the SAR sensor 140.

[0106] The switching circuit may include a first switch and a second switch, both connected to the sensing unit 121. The first switch is also connected to a touch current source, and the second switch is connected to a SAR sensor 140. When the sensing unit 121 is used to sense a first capacitor signal, the first switch is off, the second switch is on, and there is no input current on the first electrode 211, which is only used to sense the user's distance. When the sensing unit 121 is used to detect a touch signal, the first switch is on, the second switch is off, and a touch current is formed on the first electrode 211. When the user touches the electrode, the touch current changes, and the second electrode 212 senses the change in touch current to generate a touch signal.

[0107] It is understood that the sensing unit 121 can also be a device in the touch layer 21 that is independent of the first electrode 211 and the second electrode 212. The sensing unit 121 is used to detect the first capacitance signal. For example, the sensing unit 121 is a transparent conductive sheet, and the sensing capacitance unit can be disposed in the gap between the first electrode 211 and the second electrode 212. The sensing unit 121 may include multiple conductive sheets, and multiple transparent conductive sheets are disposed in the gaps between multiple first electrodes 211 and second electrodes 212.

[0108] The touch panel 120 can also be an optical touch panel 120 (e.g., an infrared touch panel 120 or an ultrasonic touch panel 120). When the touch panel 120 is an optical touch panel 120, the touch layer 21 is located on the side of the display layer 22 away from the light-emitting side, the sensing unit 121 is located on the display layer 22, and the sensor 130 is located on the side of the touch layer 21 away from the display layer 22.

[0109] The sensing unit 121 can be located on the side of the electrode layer in the display layer 22 away from the substrate. The sensing unit 121 can be made of a transparent conductive material (such as ITO). The sensing unit 121 is connected to the driving circuit layer via a via. Signal lines are provided in the driving circuit layer, connecting the vias and the SAR sensor 140. The vias can be located at positions corresponding to the pixel definition layer or the black matrix layer to avoid pixel units.

[0110] The second capacitance signal is the capacitance signal generated by the sensor 130 in response to the user's approach, especially when the user approaches the electronic device from the back of the electronic device, the sensor 130 will generate the first capacitance signal.

[0111] The sensor 130 can be a parasitic stub coupled to the non-suspended antenna radiator 110. This parasitic stub is capable of directly detecting SAR. The parasitic stub can be suspended for direct current, and it is connected to the SAR sensor 140. When a user approaches or moves away from the non-suspended antenna radiator 110, the capacitance signal generated by the parasitic stub sensing the human body changes. The SAR sensor 140 detects this change in capacitance, and the controller 150 controls the power of the non-suspended antenna radiator 110 based on this change in capacitance signal.

[0112] Alternatively, the sensor 130 may be uncoupled from the non-suspended antenna radiator 110. Here, uncoupled sensor 130 and non-suspended antenna radiator 110 means there is no effective current between the sensor 130 and the non-suspended antenna radiator 110. The sensor 130 may be a conductive sheet disposed on the back of the touch panel 120, or the sensor 130 may be shared with other conductive devices in the electronic device. This conductive device is disposed within a preset distance threshold from the antenna radiator, and this conductive device is suspended (ungrounded or grounded through a DC blocking element). For example, the sensor 130 may include one or more of the following: a flexible circuit board, volume buttons, a power button, a fingerprint module, a receiver, a speaker module, a camera module, a wireless charging module, a motherboard bracket, a small board bracket, an NFC module, a camera decorative ring, an electroacoustic module, and a conductor tray.

[0113] The sensing unit 121 and the sensor 130 are connected to the SAR sensor 140. The SAR sensor 140 detects the first capacitance signal and the second capacitance signal generated by the sensing unit 121 and the sensor 130. The controller 150 is connected to the SAR sensor 140 and obtains the first capacitance signal and the second capacitance signal from the SAR sensor 140.

[0114] In step S720, when either the first capacitor signal or the second capacitor signal increases, the transmission power of the non-suspended antenna radiator 110 is reduced. The non-suspended antenna radiator 110 has a path for transmitting DC current with the ground terminal and / or the feed terminal.

[0115] When either the first capacitor signal or the second capacitor signal increases, it is considered that a human body is approaching the non-suspended antenna radiator 110. At this time, the transmission power of the non-suspended antenna radiator 110 is reduced to achieve SAR compliance.

[0116] When the electronic device includes a sensor 130, a sensing unit 121, and multiple suspended antenna radiators, the controller 150 can control the multiple antenna radiators to adjust their transmission power according to their respective SAR values.

[0117] For example, when the capacitance signal received by the controller 150 from the sensor 130 or the sensing unit 121 increases, and the capacitance signal sensed by the multiple suspended antenna radiators remains unchanged, the controller 150 controls the non-suspended antenna radiator 110 to reduce its transmission power and controls the suspended antenna radiator to operate at full power.

[0118] When the capacitance signal received by the controller 150 from the sensor 130 or the sensing unit 121 increases, and the capacitance signal sensed by at least one of the multiple suspended antenna radiators increases, the controller 150 controls the non-suspended antenna radiator 110 to reduce its transmission power, and controls the suspended antenna radiator with the increased capacitance signal to reduce its transmission power, while the remaining suspended antenna radiators operate at full power.

[0119] When the capacitance signals received by the controller 150 from the sensor 130 and the sensing unit 121 remain unchanged, and the capacitance signal induced by at least one of the multiple suspended antenna radiators increases, the controller 150 controls the non-suspended antenna radiator 110 to operate at full power, and controls the suspended antenna radiator with the increased capacitance signal to reduce its transmission power, while the remaining suspended antenna radiators operate at full power.

[0120] This technology enables independent control of the transmission power of each antenna radiator based on the location relationship between the user and the electronic device. On the one hand, it achieves SAR compliance, and on the other hand, it avoids the problem of reduced communication performance of electronic devices caused by board-level power reduction, thereby improving the communication performance of electronic devices.

[0121] Step S730: Detect the working state of the non-suspended antenna radiator 110, and switch the sensing unit 121 to the working state when the non-suspended antenna radiator 110 is in the transmitting state, and switch the sensing unit 121 to the non-working state when the non-suspended antenna radiator 110 is in the non-transmitting state.

[0122] The sensing unit 121 corresponds to the non-suspended antenna radiator 110 (for example, the distance between the sensing unit 121 and the non-suspended antenna radiator 110 is less than a preset distance threshold). The controller 150 can determine the operating state of the antenna radiator according to the antenna control algorithm. When the non-suspended antenna radiator 110 is in the transmitting state, the controller controls the sensing unit 121 to be powered on and put into the operating state. When the non-suspended antenna radiator 110 is in the receiving state or the antenna radiator is not working, the sensing unit 121 is also not working, which can save power.

[0123] A power switch is provided between the sensing unit 121 and the power module. The power switch is connected to the controller 150. When the non-suspended antenna radiator 110 is in the transmitting state, the power switch is turned on. When the non-suspended antenna radiator 110 is in the receiving state or the non-suspended antenna radiator 110 is not working, the power switch is turned off.

[0124] The SAR control method for electronic devices provided in this disclosure generates a first capacitance signal based on the distance sensing between the user and the sensing unit 121, and a second capacitance signal based on the distance sensing between the user and the sensor 130. The SAR sensor 140 receives the first and second capacitance signals, and the controller 150 controls the transmission power of the non-suspended antenna radiator 110 based on the first and / or second capacitance signals. The first and second capacitance signals are positively correlated with the SAR signal, enabling the electronic device to detect the SAR signal corresponding to the non-suspended antenna radiator 110, which has a DC path to the ground terminal and / or feed terminal. This allows the electronic device to adjust the transmission power of the non-suspended antenna radiator 110 to ensure SAR compliance. Furthermore, the sensor 130 can sense the user approaching the back of the electronic device, and the sensing unit 121 can sense the user approaching the front of the electronic device, avoiding the problem of not being able to detect the user approaching from the front of the electronic device due to the shielding effect of the display device. This achieves omnidirectional detection of the user's distance, thereby improving the accuracy of SAR control.

[0125] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. An electronic device, characterized in that, The electronic device includes: A non-suspended antenna radiator, wherein the non-suspended antenna radiator has a path for transmitting DC current to the grounding terminal and / or the feed terminal; A touch panel, wherein a sensing unit is provided on the touch panel, the sensing unit is used to sense the distance between the user and the sensing unit to generate a first capacitive signal; A sensor is disposed on the back side of the touch panel, and the sensor is used to sense the distance between the user and the sensor to generate a second capacitance signal; A SAR sensor is connected to the sensor and the sensing unit, and the SAR sensor is used to receive the first capacitance signal and the second capacitance signal; A controller, connected to the SAR sensor, is configured to adjust the transmission power of the non-suspended antenna radiator based on the first capacitor signal and the second capacitor signal. The electronic device also includes: The border includes a first side edge, a bottom edge, a second side edge, and a top edge that are connected end to end in sequence; The first non-suspended antenna radiator is disposed on the first side. The second non-suspended antenna radiator is disposed on the second side. The touch panel includes a first SAR sensing area and a second SAR sensing area. The distance between the first SAR sensing area and the first non-suspended antenna radiator is less than a first distance threshold, and the distance between the second SAR sensing area and the second non-suspended antenna radiator is less than a second distance threshold.

2. The electronic device as claimed in claim 1, characterized in that, The controller is also used to detect the working state of the non-suspended antenna radiator and control the sensing unit to work when the non-suspended antenna radiator is working in the transmission state.

3. The electronic device as described in claim 2, characterized in that, The controller controls the sensing unit to not operate when the non-suspended antenna radiator is in a non-transmitting state.

4. The electronic device as claimed in claim 1, characterized in that, The sensing unit is also used to sense touch signals, and the electronic device further includes: A switching circuit is provided, which is connected to the sensing unit, the SAR sensor, and the touch circuit respectively. When the user touches the sensing unit, the switching circuit turns on the sensing unit and the touch circuit to transmit the touch signal to the touch circuit. When the user does not touch the sensing unit, the switching circuit turns on the sensing unit and the SAR sensor to transmit the touch signal to the SAR sensor.

5. The electronic device as claimed in claim 1, characterized in that, The touch panel includes a SAR sensing area, the sensing unit is disposed in the SAR sensing area, and the projection of the sensor on the touch panel coincides with the SAR sensing area.

6. The electronic device as claimed in claim 1, characterized in that, The electronic device includes: A first sensor is disposed on the back side of the touch panel, and the projection of the first sensor on the touch panel at least partially overlaps with the first SAR sensing area. The second sensor is disposed on the back side of the touch panel, and the projection of the second sensor on the touch panel at least partially overlaps with the second SAR sensing area.

7. The electronic device as claimed in claim 1, characterized in that, The electronic device also includes: A first suspended antenna radiator is connected to the SAR sensor. The first suspended antenna radiator includes a first conductor segment and a second conductor segment, which are connected. The first conductor segment is located on the first side, and the second conductor segment is located on the top side. The second suspended antenna radiator is connected to the SAR sensor. The second suspended antenna radiator includes a third conductor segment and a fourth conductor segment, which are connected. The third conductor segment is located on the second side, and the fourth conductor segment is located on the top side. The third suspended antenna radiator is connected to the SAR sensor. The third suspended antenna radiator includes a fifth conductor segment and a sixth conductor segment, which are connected. The fifth conductor segment is located on the second side, and the sixth conductor segment is located on the bottom side.

8. The electronic device as claimed in claim 1, characterized in that, The sensor is a parasitic branch, and the parasitic branch is coupled to the non-suspended antenna radiator.

9. The electronic device as claimed in claim 1, characterized in that, The sensor and the antenna radiator are not coupled. The sensor is one or more of the following: volume button, power button, fingerprint module, receiver, speaker module, camera module, wireless charging module, motherboard bracket, small board bracket, NFC module, camera decorative ring, electroacoustic module, and conductor card holder.

10. The electronic device as claimed in claim 1, characterized in that, The touch panel includes: A touch layer, wherein the sensing unit is disposed on the touch layer; The display layer has a touch layer located on the light-emitting side of the display layer, and the sensor is located on the side of the display layer away from the touch layer.

11. The electronic device as claimed in claim 1, characterized in that, The touch panel includes: The display layer, wherein the sensing unit is disposed on the display layer; A touch layer is disposed on the side of the display layer away from the light-emitting side, and the sensor is disposed on the side of the touch layer away from the display layer.

12. A method for controlling an electronic device SAR, applied to controlling the electronic device as described in claim 1, characterized in that, The method includes: The sensor unit is located on the touch panel, and the sensor is located on the back side of the touch panel. The sensor unit is located on the touch panel, and the sensor is located on the back side of the touch panel. When either the first capacitor signal or the second capacitor signal increases, the transmission power of the non-suspended antenna radiator is reduced. The non-suspended antenna radiator has a path for transmitting DC current with the grounding terminal and / or the feed terminal.

13. The method for controlling an electronic device SAR as described in claim 12, characterized in that, The method further includes: The operating status of the non-suspended antenna radiator is detected, and the sensing unit is switched to the operating state when the non-suspended antenna radiator is operating in the transmitting state, and the sensing unit is switched to the non-operating state when the non-suspended antenna radiator is operating in the non-transmitting state.

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