CN114924134B

CN114924134B - Electronic equipment

Info

Publication number: CN114924134B
Application number: CN202210605377.4A
Authority: CN
Inventors: 吴小浦
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2023-12-19
Anticipated expiration: 2042-05-30
Also published as: WO2023231403A1; CN114924134A

Abstract

The application discloses electronic equipment, wherein an SAR detection device is an SAR detection scheme of a common antenna radiator, so that the stacking space is saved; two antenna radiators of the SAR detection device are diagonally arranged, BODY-SAR-6 surface detection is realized, and a main BODY to be detected, which is close to the front surface, the back surface, the left side surface, the right side surface, the upper side surface and the lower side surface of the electronic equipment, can be sensed; moreover, the two antenna radiators are arranged in the SAR hot spot region, so that the SAR detection device provided by the embodiment of the application can better realize full coverage of the SAR hot spot, and the SAR detection accuracy is greatly improved.

Description

Electronic equipment

Technical Field

The present application relates to, but is not limited to, communication technology, and in particular, to an electronic device.

Background

With the rapid development of information technology, electronic devices such as mobile phones with communication functions have become more and more popular and more powerful. An antenna module is typically included in an electronic device to implement the communication functions of the electronic device. People enjoy various electronic devices and bring various convenience, and meanwhile, the influence of electromagnetic radiation of the electronic devices on human health is increasingly concerned.

When the wireless communication function works and emits signals, electromagnetic waves radiated by the antenna can enter human skin, muscle tissues and brain parts close to the antenna, and various organs of the human body are consumable mediums, so that the electromagnetic fields in the human body can generate current, and the electromagnetic energy can be absorbed and dissipated, so that harmful effects can be caused on the organs of the human body. Specific absorption rate (SAR, specific Absorption Rate) is commonly used in biopharmaceuticals to characterize this physical process.

How to better control an electronic device to meet SAR detection requirements when a user uses the electronic device so that SAR values are in a safe range is a technical problem to be solved.

Disclosure of Invention

The application provides electronic equipment, which can better meet SAR detection requirements, maximally ensure the safety of using the electronic equipment by a user and promote user experience.

The embodiment of the application also provides electronic equipment, which comprises:

a housing including a first corner portion located at an upper right corner of the housing, a second corner portion located at a lower left corner of the housing, and a third corner portion located at an upper left corner of the housing;

a first antenna radiator, which belongs to a first antenna unit in an antenna assembly of the electronic device, is at least partially arranged in suspension or near the first corner part located in a first SAR hot spot area, and is used for receiving and transmitting a first electromagnetic wave signal of an MHB frequency band and/or an UHB frequency band, sensing the degree of a main body to be detected, which is close to the first SAR hot spot area, and generating a first sensing signal, wherein the first SAR hot spot area is located in an area where MHB frequency band and UHB frequency band antennas of the electronic device are concentrated;

The second antenna radiator belongs to a second antenna unit in the antenna assembly, is at least partially arranged in suspension or near the second corner part positioned in a second SAR hot spot region, and is used for receiving and transmitting a second electromagnetic wave signal of an LB frequency band, sensing the degree of a main body to be detected, which is near the second SAR hot spot region, and generating a second sensing signal, wherein the second SAR hot spot region is positioned in a region where an MHB frequency band antenna of the electronic equipment is concentrated;

the third antenna radiator is arranged on one side opposite to the first antenna radiator in a suspending manner, is positioned on the same side of the electronic equipment as the second antenna radiator, is at least partially arranged on or near the third corner in a suspending manner, and is used for receiving and transmitting a third electromagnetic wave signal, sensing the approaching degree of a main body to be detected and generating a third sensing signal;

the SAR sensor is electrically connected with the first antenna radiator, the second antenna radiator and the third antenna radiator, and is used for acquiring at least one of the first induction signal, the second induction signal and the third induction signal so as to determine whether a main body to be detected is close to the electronic equipment or not and realize SAR detection of the front side, the back side, the left side, the right side, the upper side and the lower side of the electronic equipment.

According to the electronic equipment provided by the embodiment of the application, the SAR detection device provided by any embodiment of the application is arranged on the electronic equipment, so that the main body to be detected is detected in a large range by utilizing a small number of antenna assemblies, the main body to be detected is detected in a near way, the full-range detection of the main body to be detected is realized, the induction precision of the electronic equipment to the main body to be detected is improved, the functional integration level of the antenna assemblies is also improved, the communication quality of the electronic equipment is improved, the whole machine miniaturization of the electronic equipment is also promoted, and the intelligent characteristic of the electronic equipment is improved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the technical aspects of the present application, and are incorporated in and constitute a part of this specification, illustrate the technical aspects of the present application and together with the examples of the present application, and not constitute a limitation of the technical aspects of the present application.

FIG. 1 is a schematic diagram showing the distribution of electric field lines when a target object is not near an antenna assembly;

FIG. 2 is a schematic diagram showing the distribution of electric field lines when a target object approaches an antenna assembly;

fig. 3 is a schematic structural diagram of a first embodiment of a SAR detection device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a second embodiment of the SAR detection device in the embodiment of the present application;

fig. 5 is a schematic structural diagram of a third embodiment of a SAR detection device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a fourth embodiment of a SAR detection device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a fifth embodiment of the SAR detection device in the embodiment of the present application;

fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

FIG. 9 is an exploded schematic view of the electronic device provided in FIG. 8;

fig. 10 is a schematic diagram of the composition structure of a first embodiment of an electronic device in an embodiment of the present application;

fig. 11 is a schematic structural diagram of an embodiment of a first antenna unit of an electronic device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of an embodiment of a second antenna unit of the electronic device according to the embodiment of the present application.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be arbitrarily combined with each other.

In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It is to be understood that the terms "first," "second," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

It is to be understood that in the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", etc., if the connected circuits, modules, units, etc., have electrical or data transfer between them.

As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof. Also, the term "and/or" as used in this specification includes any and all combinations of the associated listed items.

SAR is the electromagnetic power absorbed or consumed by a unit mass of human tissue, and electronic devices are typically configured with SAR sensors for detecting the capacitance value of the ambient capacitance. The SAR sensor must use a floating metal body (also called a sensing plate) to sense the capacitance change Cuser caused by the proximity of the human body. The distance of the human body is judged through the capacitance change value, so that the instruction of reducing the transmitting power can be sent out after the mobile phone detects the human body approach, and the SAR value is reduced. Fig. 1 is a schematic diagram of the distribution of electric field lines when a target object is not close to the antenna assembly, and fig. 2 is a schematic diagram of the distribution of electric field lines when a target object is close to the antenna assembly, and in combination with fig. 1 and fig. 2, the suspended conductive plates enable the SAR sensor to detect a change in capacitance value caused when the target object is close to the antenna assembly 100. In fig. 2, the target object is illustrated as a finger of a user, and it is understood that in other embodiments, the target object may be, but is not limited to, other parts of the user, such as a head, etc. Capacitance csensor=cenv in fig. 1, and capacitance csensor=cenv+cuser in fig. 2. Wherein CEnv is the original capacitance value, and Cuser is the change in capacitance when the target object approaches the antenna assembly 100. In this way, the purpose of the antenna assembly 100 detecting whether a target object is approaching the antenna assembly 100 is achieved.

In order to control the SAR value, the SAR detection circuit is arranged in the electronic equipment and connected to the antenna radiator, the antenna radiator is used as an induction piece of the SAR detection circuit to detect the proximity degree of a human body and the electronic equipment, and when the proximity degree is lower than a certain threshold value, the control system reduces the transmitting power of wireless communication, so that the SAR value is controlled to be in a safe range when the electronic equipment is used by a user.

Industry SAR detection standards generally include: BODY-SAR-6 surface SAR detection, head SAR detection, north America and Europe also require hotspot SAR detection, with the hotspots of SAR typically being near the antenna. The BODY-SAR-6 surface SAR detection requires that the SAR value is tested on six sides of the electronic equipment, namely the upper side, the lower side, the left side, the right side, the front side and the back side. In contrast, for SAR hot spot, the present inventors found through researches that, taking an electronic device as an example of a mobile phone, generally, SAR values of a low frequency (LB) Band and a Wi-Fi Band are relatively low, and SAR values of a Middle High frequency (MHB) Band and an Ultra High frequency (UHB) Band of 4G/5G are relatively High, so that the vicinity of the MHB/UHB-TX may be regarded as a SAR hot spot area. In order to better meet SAR detection requirements, the embodiment of the application provides an SAR detection device which can realize BODY-SAR-6 surface detection and can fully cover an SAR hot spot region.

Fig. 3 is a schematic structural diagram of a first embodiment of a SAR detection device according to an embodiment of the present application, which is applied to an electronic apparatus 1000, as shown in fig. 3, where the SAR detection device according to an embodiment of the present application may include: a SAR sensor 150, and a first antenna radiator 110 and a second antenna radiator 120 diagonally disposed on the electronic device 1000; wherein,

the first antenna radiator 110 is arranged in a suspending manner in a first SAR hot spot region, and the first SAR hot spot region at least partially covers two adjacent side edges of the electronic device; the first antenna radiator 110 is configured to receive and transmit a first electromagnetic wave signal, sense a degree of the body to be detected approaching the first SAR hot spot area, and generate a first sensing signal;

the second antenna radiator 120 is arranged in a suspending manner in a second SAR hot spot area, and the second SAR hot spot area at least partially covers the other two adjacent sides of the electronic device; the second antenna radiator 120 is configured to receive and transmit a second electromagnetic wave signal, sense a degree of the body to be detected approaching the second SAR hot spot area, and generate a second sensing signal;

the SAR sensor 150 is electrically connected to the first antenna radiator 110 and the second antenna radiator 120, and the SAR sensor 150 is configured to acquire at least one of the first sensing signal and the second sensing signal to determine whether the subject to be detected is close to the electronic device.

The SAR detection device provided by the embodiment of the application is an SAR detection scheme of the common antenna radiator, so that the stacking space is saved; two antenna radiators of the SAR detection device are diagonally arranged, BODY-SAR-6 surface detection is realized, and a main BODY to be detected, which is close to the front surface, the back surface, the left side surface, the right side surface, the upper side surface and the lower side surface of the electronic equipment, can be sensed; moreover, the two antenna radiators are arranged in the SAR hot spot region, so that the SAR detection device provided by the embodiment of the application can better realize full coverage of the SAR hot spot, and the SAR detection accuracy is greatly improved.

In an illustrative example, the SAR sensor 150 can include a multi-channel SAR sensor, as shown in fig. 3, where the SAR sensor 150 includes at least two channels, one of which is coupled to the first antenna radiator 110 and the other of which is coupled to the second antenna radiator 120. The SAR sensor 150 may also comprise a plurality of individual SAR sensors, as shown in fig. 3, and the SAR sensor 150 may also comprise two SAR sensors, one SAR sensor 150 being connected to the first antenna radiator 110 and the other SAR sensor 150 being connected to the second antenna radiator 120.

In an illustrative example, the first antenna radiator 110 and the second antenna radiator 120 are also provided with circuit structures such as a matching circuit and a feed source as antenna radiating units to form an antenna system. As shown in fig. 4, the SAR detection device provided in the embodiment of the present application may further include a first feed source S10, a first matching circuit M1, a second feed source S20, and a second matching circuit M2, where the first feed source S10 is electrically connected to the first antenna radiator 110 through the first matching circuit M1, and the second feed source S20 is electrically connected to the second antenna radiator 120 through the second matching circuit M2.

In one embodiment, the first feed S10, the first matching circuit M1, and the first antenna radiator 110 may constitute one antenna system, and the second feed S20, the second matching circuit M2, and the second antenna radiator 120 may constitute one antenna system. The two antenna systems may operate simultaneously independently of each other.

In an exemplary embodiment, the SAR detection apparatus provided in the embodiment of the present application may further include an antenna tuning circuit (not shown in fig. 4), for example, a first tuning circuit T1 and a second tuning circuit T2, where the first antenna radiator 110 is grounded through the first tuning circuit T1, and the second antenna radiator 120 is grounded through the second tuning circuit T2.

In an exemplary embodiment, as shown in fig. 5, the SAR detection device in the embodiment of the present application may further include: the third antenna radiator 130, the third antenna radiator 130 is arranged at one side opposite to the first antenna radiator 110 in a suspending manner, and is located at the same side of the electronic device 1000 as the second antenna radiator 120, and the third antenna radiator 130 is used for receiving and transmitting a third electromagnetic wave signal, sensing the proximity of the main body to be detected and generating a third sensing signal;

the SAR sensor 150 is also electrically connected to the third antenna radiator 130, the SAR sensor 150 being for: at least one of the first sensing signal, the second sensing signal and the third sensing signal is acquired to determine whether the main body to be detected is close to the electronic equipment.

Through the SAR detection device shown in fig. 5, an SAR detection region is increased, an SAR exceeding operating frequency band exists in the SAR detection region, and an antenna radiator is added in the SAR detection region to be shared as an induction sheet for SAR detection, so that the SAR detection region is more comprehensively covered, the SAR detection accuracy is further improved, and meanwhile, the stacking space is also saved.

In an exemplary embodiment, as shown in fig. 6, the SAR detection device in the embodiment of the present application may further include: the fourth antenna radiator 140 is disposed in the second SAR hot spot area, the fourth antenna radiator 140 is disposed in suspension on a side opposite to the second antenna radiator 120 and on the same side of the electronic device 1000 as the first antenna radiator 110, and the fourth antenna radiator 140 is configured to receive and transmit a fourth electromagnetic wave signal, sense proximity of a body to be detected, and generate a fourth sensing signal;

the SAR sensor 150 is also electrically connected to the fourth antenna radiator 140, the SAR sensor 150 being for: at least one of the first sensing signal, the second sensing signal, the third sensing signal and the fourth sensing signal is acquired to determine whether the main body to be detected is close to the electronic equipment.

Through the SAR detection device shown in fig. 6, the SAR detection area is further increased, and an antenna radiator is added in the SAR detection area to be shared as an induction sheet for SAR detection, so that the SAR detection area is more comprehensively covered, the SAR detection accuracy is further improved, and meanwhile, the stacking space is also saved.

In an exemplary example, the SAR detection apparatus shown in fig. 6 not only achieves full coverage of SAR hotspots, but also recognizes whether the electronic device is held by one hand or both hands by SAR induction of four corners of the electronic device 1000. In one embodiment, such as: it is determined from the acquired fourth sensing signal that there is a fourth antenna radiator 140 where the subject to be detected is close to the electronic device, then it may be basically determined that the user holds the electronic device with one hand at this time. And the following steps: it is determined that the to-be-detected main body approaches the third antenna radiator 130 of the electronic device according to the acquired second sensing signal, and it is determined that the to-be-detected main body approaches the fourth antenna radiator 140 of the electronic device according to the acquired fourth sensing signal, then it may be basically determined that the user holds the electronic device with both hands at this time. In this way, the electronic device may select other uncovered antennas to transmit and receive signals according to the state that the current antenna is held, so as to ensure the user experience of the electronic device 1000.

It can be appreciated that the third antenna radiator 130 and the fourth antenna radiator 140 are used as antenna radiating units, and are further provided with circuit structures such as a matching circuit and a feed source to form an antenna system, and the specific implementation can be shown in fig. 4, which is not repeated here. The third antenna radiator 130 and the fourth antenna radiator 140 may also be grounded through an antenna tuning circuit, which is not described here again.

In an exemplary embodiment, as shown in fig. 7, the SAR detection apparatus provided in the embodiment of the present application may also include: a SAR sensor 150, a first antenna radiator 110, a third antenna radiator 130, and a fourth antenna radiator 140; wherein,

the third antenna radiator 130 is arranged at one side opposite to the first antenna radiator 110 in a suspending manner, and is positioned at a different side of the electronic device 1000 from the first antenna radiator 110, and the third antenna radiator 130 is used for receiving and transmitting a third electromagnetic wave signal, sensing the proximity of a main body to be detected and generating a third sensing signal;

the fourth antenna radiator 140 is arranged in a suspending manner in the second SAR hot spot area, is diagonally arranged on the electronic device 1000 with the third antenna radiator 130, and the fourth antenna radiator 140 is used for receiving and transmitting a fourth electromagnetic wave signal, sensing the degree of the main body to be detected approaching the second SAR hot spot area, and generating a fourth sensing signal;

The SAR sensor 150 is configured to acquire at least one of the first sensing signal, the third sensing signal, and the fourth sensing signal, so as to determine whether the subject to be detected is close to the electronic device.

The SAR detection device shown in fig. 7 is also a scheme for detecting SAR of a common antenna radiator, so that the stacking space is saved; two of three antenna radiators (a third antenna radiator 130 and a fourth antenna radiator 140) in the SAR detection device shown in fig. 7 are diagonally arranged, and the other antenna radiator is used for detecting an SAR supplementary region, so that BODY-SAR-6 surface detection is realized, and a main BODY to be detected approaching from the front surface, the back surface, the left side surface, the right side surface, the upper side surface and the lower side surface of the electronic equipment can be sensed; moreover, two antenna radiators (the first antenna radiator 110 and the fourth antenna radiator 140) of the three antenna radiators in the SAR detection device shown in fig. 7 are arranged in the SAR hot spot area, so that the SAR detection device provided in the embodiment of the present application better covers the SAR hot spot area, better realizes full coverage of the SAR hot spot, and greatly improves the accuracy of SAR detection.

Fig. 8 is a schematic structural diagram of an electronic device 1000 according to an embodiment of the present application. The electronic device 1000 may be a device capable of transmitting and receiving electromagnetic wave signals, such as a telephone, a television, a tablet computer, a mobile phone, a camera, a personal computer, a notebook computer, an in-vehicle device, an earphone, a wristwatch, a wearable device, a base station, an in-vehicle radar, a customer premises equipment (CPE, customer Premise Equipment), or the like. Taking the electronic device 1000 as a mobile phone for example, for convenience of description, the width direction of the electronic device 1000 is defined as the X direction, the length direction of the electronic device 1000 is defined as the Y direction, and the thickness direction of the electronic device 1000 is defined as the Z direction, which are defined with reference to the electronic device 1000 being at the first viewing angle. The direction indicated by the arrow is forward.

Fig. 9 is an exploded schematic view of the electronic device provided in fig. 8, and as shown in fig. 9, the electronic device 1000 provided in the embodiment of the present application includes a display screen 300 and a housing 500 covered with the display screen 300. The housing 500 includes a middle frame 501 and a rear cover 502 that are mutually covered. The rear cover 502 is located on the side of the middle frame 501 facing away from the display screen 300. The middle frame 501 includes a middle plate and a frame surrounding the middle plate. The middle board is used for mounting electronic components such as the main board 200, the battery 400 and the like. The edge, bezel and back cover 502 of the display 300 are connected in sequence. The frame and the rear cover 502 may be integrally formed. The electronic device 1000 also includes an antenna assembly 100. At least part of the antenna assembly 100 is disposed on the motherboard 200 of the electronic device 1000 or electrically connected to the motherboard 200 of the electronic device 1000. The antenna assembly 100 is used for receiving and transmitting radio frequency signals to realize the communication function of the electronic device 1000. It should be noted that the setting position of the antenna assembly 100 in fig. 9 is merely an example, and is not used to limit the setting position of the antenna assembly of the present application, but is not used to limit the protection scope of the present application.

The embodiment of the application also provides electronic equipment which at least can comprise the SAR detection device provided by any embodiment of the application. Through setting up SAR detection device at electronic equipment, not only utilize less quantity antenna module to realize the main part proximity detection that waits to detect of great scope, realized waiting to detect the all-round detection that the main part is close, improved the response precision of electronic equipment to waiting to detect the main part, still improved antenna module's functional integration degree moreover, still promoted electronic equipment's complete machine miniaturization when improving electronic equipment's communication quality, improved electronic equipment's intelligent characteristic.

Fig. 10 is a schematic structural diagram of a first embodiment of an electronic device according to an embodiment of the present application, where, as shown in fig. 10, at least may include: a housing 500, and a SAR detection device; wherein,

the case 500 includes a first corner portion 510 and a second corner portion 520 disposed diagonally;

the SAR detection apparatus may include: a SAR sensor 150, a first antenna radiator 110, and a second antenna radiator 120; wherein,

the first antenna radiator 110 belongs to the first antenna unit 10 in the antenna assembly 100 of the electronic device, the first antenna radiator 110 is at least partially arranged in a suspending manner at or near the first corner 510 located in the first SAR hot spot area, and the first antenna radiator 110 is configured to receive and transmit a first electromagnetic wave signal and sense the degree of the body to be detected approaching the first SAR hot spot area and generate a first sensing signal;

the second antenna radiator 120 belongs to the second antenna unit 20 in the antenna assembly 100 of the electronic device, the second antenna radiator 120 is at least partially arranged in suspension or near the second corner 520 located in the second SAR hot spot area, and the second antenna radiator 120 is configured to receive and transmit a second electromagnetic wave signal and sense the degree of the main body to be detected approaching the second SAR hot spot area and generate a second sensing signal;

In one illustrative example, as shown in fig. 10, the case 500 includes first and second corner portions 510 and 520 disposed diagonally, and third and fourth corner portions 530 and 540 disposed diagonally. In one embodiment, the housing 500 includes a first side 51, a second side 52, a third side 53, and a fourth side 54 connected in sequence. The first side 51 is disposed opposite the third side 53. The second side 52 is disposed opposite the fourth side 54. The junction between the first edge 51 and the second edge 52 is a first corner 510. The junction between the third side 53 and the fourth side 54 is a second corner 520. The junction between the first edge 51 and the fourth edge 54 is a third corner 530. The junction between the second side 52 and the third side 53 is a fourth corner 540.

In one embodiment, the first corner portion 510, the second corner portion 520, the third corner portion 530, and the fourth corner portion 540 are all located on the outer surface of the bezel. Taking fig. 10 as an example, the first corner portion 510 may be an upper right corner of the case 500, the second corner portion 520 may be a lower left corner of the case 500, the third corner portion 530 may be an upper left corner of the case 500, and the fourth corner portion 540 may be a lower right corner of the case 500. In other embodiments, the first corner 510 may be on a corner covered by the first SAR hot spot region of the housing 500, the second corner 520 may be on a corner covered by the second SAR hot spot region of the housing 500, and the first corner 510 and the second corner 520 are diagonally disposed. The fourth corner 540 may be at the corner covered by the second SAR hot spot area of the housing 500.

In one illustrative example, as shown in fig. 10, at least a portion of the first antenna element 10 is disposed at or near the first corner portion 510. The first antenna element 10 comprises a first antenna radiator 110. The first antenna radiator 110 is configured to receive and transmit a first electromagnetic wave signal and generate a first sensing signal when the to-be-detected body approaches, where the first sensing signal is configured to feed back that the to-be-detected body approaches the first antenna radiator 110. Wherein the subject to be detected may include, but is not limited to, a human body. In this embodiment, the subject to be detected is a human body.

In one illustrative example, as shown in fig. 10, the first antenna radiator 110 may be located at a first corner 510. In one embodiment, the first antenna radiator 110 may be integrated on the bezel and/or the battery cover and disposed at the first corner portion 510 or near the first corner portion 510; alternatively, the first antenna radiator 110 is located in the space enclosed by the housing 500 and located at or near the first corner 510, for example, the first antenna radiator 110 is formed on the flexible circuit board and is attached to the inner side of the first corner 510. In this embodiment, a part of the first antenna radiating element 110 is disposed on the first side 51, and another part is disposed on the second side 52.

In one illustrative example, as shown in fig. 10, at least a portion of the second antenna element 20 is disposed at or near the second corner 520. The second antenna unit 20 includes a second antenna radiator 120. The second antenna radiator 120 is configured to receive and transmit a second electromagnetic wave signal and generate a second sensing signal when the to-be-detected body approaches, where the second sensing signal is used to feed back that the to-be-detected body approaches the second antenna radiator 120. Wherein the subject to be detected may include, but is not limited to, a human body. In this embodiment, the subject to be detected is a human body.

In one illustrative example, as shown in fig. 10, the second antenna radiator 120 may be located at the second corner 520, and in one embodiment, the second antenna radiator 120 may be integrated on the bezel and/or the battery cover and located at the second corner 520 or near the second corner 520; alternatively, the second antenna radiator 120 is located in the space surrounded by the case 500 and located at or near the second corner 520, for example, the second antenna radiator 120 is formed on the flexible circuit board and attached to the inside of the second corner 520. In the present embodiment, a part of the second antenna radiator 120 is disposed on the third side 53, and another part is disposed on the fourth side 54.

Referring to fig. 8 and 9, the electronic device 1000 includes a front surface, a back surface, a left side surface, a right side surface, an upper side surface, and a lower side surface. Wherein the front and the back are arranged opposite to each other. The front surface is the surface of the display 300 facing the positive direction of the Z axis, the back surface is the surface of the back cover 502 facing the negative direction of the Z axis, and the left side surface and the right side surface are the surface facing the positive direction of the X axis and the surface facing the negative direction of the X axis, respectively. The upper side face is a face facing the Y-axis forward direction, and the lower side face is a face facing the Y-axis reverse direction.

When the first antenna radiator 110 is disposed at the first corner portion 510, the first antenna radiator 110 is capable of sensing a body to be detected approaching from the front, back, right side, upper side; when the second antenna radiator 120 is provided at the second corner portion 520, the second antenna radiator 120 can sense a subject to be detected approaching from the front, the rear, the left side, the lower side. Therefore, by arranging the first antenna radiator 110 and the second antenna radiator 120 at the first corner portion 510 and the second corner portion 520, respectively, a main BODY to be detected approaching from the front, the back, the left side, the right side, the upper side and the lower side is sensed, so that the antenna assembly 100 with less arrangement can sense the main BODY to be detected approaching the electronic device 1000 from the whole sphere range, and the requirement of BODY-SAR-6 surface detection is met. Moreover, the first antenna radiator 110 and the second antenna radiator 120 are disposed in the SAR hot spot area, so that the SAR hot spot area is better covered by the SAR detection, the full coverage of the SAR hot spot is better realized, and the sensing precision of the electronic device 1000 on the main body to be detected is greatly improved.

According to the electronic device 1000 provided by the embodiment of the invention, the first antenna unit 10 and the second antenna unit 20 are respectively arranged on the two corners of the electronic device 1000, so that not only electromagnetic wave signals are received and transmitted by the first antenna unit 10 and the second antenna unit 20, but also the large-range approaching detection of a main body to be detected is realized by a small number of antenna assemblies 100 at the corners of two diagonally arranged covering SAR hot spot areas, the functional integration level of the antenna assemblies 100 is improved, the induction precision of the electronic device 1000 to the main body to be detected is improved, and the whole machine miniaturization of the electronic device 1000 is promoted while the communication quality of the electronic device 1000 is improved; because the first antenna unit 10 arranged at the first corner portion 510 and the second antenna unit 20 arranged at the second corner portion 520 are combined and then at least cover the proximity detection of the main body to be detected in 6 surfaces (the 6 surfaces comprise upper, lower, left, right, front and rear surfaces) of the electronic device 1000, the omnidirectional detection of the proximity of the main body to be detected is realized, the intelligent detection efficiency of the electronic device 1000 on the proximity of the main body to be detected is improved, the working state of the electronic device 1000 is effectively judged, the beneficial response to the working state of the electronic device 1000 is facilitated, and the intelligent characteristic of the electronic device 1000 is improved.

In an illustrative example, the first antenna element 10 may further include: a fifth antenna radiator 1101, a sixth antenna radiator 1102. In one embodiment, the fifth antenna radiator 1101, the first antenna radiator 110, and the sixth antenna radiator 1102 are disposed in this order. In one embodiment, one end of the fifth antenna radiator 1101 is grounded, and the other end of the fifth antenna radiator 1101 is coupled with one end of the first antenna radiator 110; the other end of the first antenna radiator 110 is coupled to one end of the sixth antenna radiator 1102, and the other end of the sixth antenna radiator 1102 is grounded.

In one embodiment, as shown in fig. 10, the first antenna unit 10 further includes: a first feed source S10, a fifth feed source S11 and a sixth feed source S12. The first antenna radiator 110 is caused to transceive a first electromagnetic wave signal including, but not limited to, electromagnetic wave signals of MHB frequency band and/or UHB frequency band by the first feed S10. The fifth antenna radiator 1101 is caused to transmit and receive a fifth electromagnetic wave signal including, but not limited to, electromagnetic wave signals of MHB frequency band and/or UHB frequency band through the fifth feed S11. The sixth antenna radiator 1102 is caused to transmit and receive a sixth electromagnetic wave signal including, but not limited to, an electromagnetic wave signal of UHB band through the sixth feed S11.

In one embodiment, not shown in fig. 10, the first antenna element 10 further comprises: a first matching circuit M1, a fifth matching circuit M5, and a sixth matching circuit M6. The first feed source S10 is electrically connected to the first antenna radiator 110 through the first matching circuit M1, the fifth feed source S11 is electrically connected to the fifth antenna radiator 1101 through the fifth matching circuit M5, and the sixth feed source S12 is electrically connected to the sixth antenna radiator 1102 through the sixth matching circuit M6.

In an illustrative example, the second antenna unit 20 may further include: seventh antenna radiator 1201. In one embodiment, the second antenna radiator 120, the seventh antenna radiator 1201 are disposed in sequence. In one embodiment, one end of the second antenna radiator 120 is suspended, and the other end of the second antenna radiator 120 is coupled to one end of the seventh antenna radiator 1201; the other end of the seventh antenna radiator 1201 is grounded.

In one embodiment, as shown in fig. 10, the second antenna unit 10 further includes: a second feed source S20 and a seventh feed source S21. The second antenna radiator 120 is caused to transmit and receive a second electromagnetic wave signal including, but not limited to, an electromagnetic wave signal of LB frequency band through the second feed S20. The seventh antenna radiator 1201 is caused to transmit and receive a seventh electromagnetic wave signal including, but not limited to, an electromagnetic wave signal of MHB frequency band and/or UHB frequency band by a seventh feed S21.

In an embodiment, the antenna unit composition embodiment of the electronic device shown in fig. 10 gives conventional distribution of LTE/NR-LB/MHB/UHB-TX, and by using the SAR detection device provided in the embodiment of the present application, only two induction slices for SAR detection, that is, the first antenna radiator 110 and the second antenna radiator 120 in fig. 10, need to be respectively set in the upper right corner and the lower left corner of the electronic device 1000, and then all hot spot areas covering the higher frequency band of SAR are realized by detection of the SAR sensor. In this embodiment, the LB frequency band may include, for example, B28/B20/B5/B8/B71, the MHB frequency band may include, for example, B1/B2/B3/B4/B39/B40/B41, and the UHB frequency band may include, for example, N77/N78/N79.

In one embodiment, not shown in fig. 10, the second antenna unit 20 further includes: a second matching circuit M2 and a seventh matching circuit M7. The second feed S20 is electrically connected to the second antenna radiator 120 through the second matching circuit M2, and the seventh feed S21 is electrically connected to the seventh antenna radiator 1201 through the seventh matching circuit M7.

In an illustrative example, in the electronic device 1000 shown in fig. 10, in combination with fig. 5, the SAR detection apparatus in the electronic device 1000 may further include: the third antenna radiator 130, the third antenna radiator 130 is arranged at one side opposite to the first antenna radiator 110 in a suspending manner, and is located at the same side of the electronic device 1000 as the second antenna radiator 120, the third antenna radiator 130 is at least partially arranged at or near the third corner 530 in a suspending manner, and the third antenna radiator 130 is used for receiving and transmitting a third electromagnetic wave signal, sensing the proximity of the main body to be detected and generating a third sensing signal;

In an illustrative example, in the electronic device 1000 shown in fig. 10, in combination with fig. 6, the SAR detection apparatus in the electronic device 1000 may further include: a fourth antenna radiator 140, the fourth antenna radiator 140 being disposed in suspension on a side opposite to the second antenna radiator 120 and on a same side of the electronic device 1000 as the first antenna radiator 110, the fourth antenna radiator 140 being disposed in suspension at least partially on or near the fourth corner 540 located in the second SAR hot spot area, the fourth antenna radiator 140 being configured to transmit and receive a fourth electromagnetic wave signal and sense proximity of a body to be detected and generate a fourth sensing signal;

Fig. 11 is a schematic structural diagram of an embodiment of a first antenna unit of an electronic device according to an embodiment of the present application, as shown in fig. 11, the first antenna unit 10 includes a fifth antenna radiator 1101, a first antenna radiator 110 and a sixth antenna radiator 1102 sequentially disposed, one end of the fifth antenna radiator 1101 is grounded, and the other end of the fifth antenna radiator 1101 is coupled to one end of the first antenna radiator 110; the other end of the first antenna radiator 110 is coupled to one end of the sixth antenna radiator 1102, and the other end of the sixth antenna radiator 1102 is grounded.

In the embodiment shown in fig. 11, on the one hand, the fifth antenna radiator 1101 in the first antenna unit 10 is connected to the fifth feed source S11 through the fifth matching circuit M5, the MHB-TX3& UHB-TX1 signal is fed to the fifth antenna radiator 1101 through the fifth matching circuit M5, the first antenna radiator 110 in the first antenna unit 10 is connected to the first feed source S10 through the first matching circuit M1, the MHB-TX2 signal is fed to the first antenna radiator 110 through the first matching circuit M1, the sixth antenna radiator 1102 in the first antenna unit 10 is connected to the sixth feed source S12 through the sixth matching circuit M6, and the UHB-TX2 signal is fed to the sixth antenna radiator 1102 through the sixth matching circuit M6. On the other hand, the first antenna radiator 110 is grounded through at least one of the capacitor C1, the capacitor C2, and the capacitor C3, as a ground return path for the MHB-TX3& UHB-TX1 signal and the MHB-TX2 signal, and functions to isolate the MHB-TX3& UHB-TX1 signal from the MHB-TX2 signal (i.e., isolation between the fifth antenna radiator 1101 and the first antenna radiator 110). In one embodiment, capacitor C2 may be removed leaving only capacitor C1 and capacitor C2. In one embodiment, the capacitor Cn may be further increased to ground, so as to further improve isolation. In one embodiment, a blocking capacitor C4 (typically having a capacitance of 22pF and having no effect on the antenna) may be further connected in series between the first matching circuit M1 and the first antenna radiator 110, and, of course, if the blocking capacitor is provided in the first matching circuit M1, no additional capacitor C4 is required. As shown in fig. 11, the first antenna radiator 110 is suspended for the SAR sensor 150. In this embodiment, the SAR sensor 150 may be connected between the capacitor C2 and the first antenna radiator 110 by connecting the first inductor L1 in series, and the higher frequency may be isolated by adding the first inductor L1, and in one embodiment, the value of the first inductor L1 may be 82nH. In one embodiment, the SAR sensor 150 may also be connected between the capacitor C1 or the capacitor C3 or the capacitor C4 and the first antenna radiator 110 by connecting the first inductor L1 in series, and may also be any position with the first antenna radiator 110. Through the first antenna unit 10 structure shown in fig. 11, in the first SAR hot spot area where the MHB frequency band and the UHB frequency band antennas are concentrated, detection that the main body to be detected is close to the SAR hot spot area is realized, so that the SAR hot spot is well covered by the SAR detection, the accuracy of the SAR detection is greatly improved, and the purpose of intelligently reducing the SAR is achieved.

Fig. 12 is a schematic structural diagram of an embodiment of a second antenna unit of the electronic device according to the embodiment of the present application, and as shown in fig. 12, the second antenna unit 20 includes a second antenna radiator 120 and a seventh antenna radiator 1201 that are sequentially disposed. In one embodiment, one end of the second antenna radiator 120 is suspended, and the other end of the second antenna radiator 120 is coupled to one end of the seventh antenna radiator 1201; the other end of the seventh antenna radiator 1201 is grounded.

In the embodiment shown in fig. 12, on the one hand, the second antenna radiator 120 in the second antenna unit 20 is connected to the second feed source S20 through the second matching circuit M2, the LB-TX signal is fed to the second antenna radiator 120 through the second matching circuit M2, the seventh antenna radiator 120 in the second antenna unit 20 is connected to the seventh feed source S21 through the seventh matching circuit M7, and the MHB-TX1 signal is fed to the seventh antenna radiator 120 through the seventh matching circuit M7. On the other hand, the second antenna radiator 120 is grounded through the tuning circuit T1. In one embodiment, a blocking capacitor C5 is connected in series between the second matching circuit M2 and the second antenna radiator 120, and a blocking capacitor C6 is connected in series between the tuning circuit T1 and the second antenna radiator 120, and in one embodiment, the capacitance of the capacitor C5 and the capacitor C6 may be 22pF, which has no influence on the antenna basically. Of course, if the matching second matching circuit M2 and the tuning circuit T1 are provided with blocking capacitors, no additional capacitor C5 or C6 is required. As shown in fig. 12, the second antenna radiator 120 is suspended for the SAR sensor 150. In this embodiment, the SAR sensor 150 may be connected between the capacitor C6 and the second antenna radiator 120 by connecting a second inductor L2 in series, and the higher frequency may be isolated by adding the second inductor L2, and in one embodiment, the value of the second inductor L2 may be 82nH. In one embodiment, the SAR sensor 150 may also be connected between the capacitor C5 and the second antenna radiator 120 by a series second inductance L2, or may be any location with the second antenna radiator 120. Through the structure of the second antenna unit 20 shown in fig. 12, in the second SAR hot spot area in the MHB frequency band antenna set, detection that the main body to be detected is close to the SAR hot spot area is realized, so that the SAR hot spot is well covered by the SAR detection, the accuracy of the SAR detection is greatly improved, and the purpose of intelligently reducing the SAR is achieved.

Although the embodiments disclosed in the present application are described above, the embodiments are only used for facilitating understanding of the present application, and are not intended to limit the present application. Any person skilled in the art to which this application pertains will be able to make any modifications and variations in form and detail of implementation without departing from the spirit and scope of the disclosure, but the scope of the application is still subject to the scope of the claims appended hereto.

Claims

1. An electronic device, comprising:

2. The electronic device of claim 1, the SAR detection apparatus further comprising a fourth antenna radiator; the fourth antenna radiator is arranged on one side opposite to the second antenna radiator in a suspending manner and is positioned on the same side of the electronic equipment as the first antenna radiator, the fourth antenna radiator is at least partially arranged on or near a fourth corner part positioned at the right lower corner of the shell in a suspending manner and positioned in the second SAR hot spot region, and the fourth antenna radiator is used for receiving and transmitting a fourth electromagnetic wave signal, sensing the proximity degree of a main body to be detected and generating a fourth sensing signal;

the SAR sensor is further electrically connected to the fourth antenna radiator, the SAR sensor is configured to: at least one of the first sensing signal, the second sensing signal, the third sensing signal and the fourth sensing signal is acquired to determine whether a subject to be detected is close to the electronic device.

3. The electronic device of claim 1 or 2, the first antenna unit further comprising: a fifth antenna radiator, a sixth antenna radiator;

the fifth antenna radiator, the first antenna radiator and the sixth antenna radiator are sequentially arranged; one end of the fifth antenna radiator is grounded, and the other end of the fifth antenna radiator is coupled with one end of the first antenna radiator; the other end of the first antenna radiator is coupled with one end of the sixth antenna radiator, and the other end of the sixth antenna radiator is grounded.

4. The electronic device of any of claims 3, the first antenna unit further comprising: the first feed source, the fifth feed source and the sixth feed source;

causing the first antenna radiator to transmit and receive the first electromagnetic wave signal through the first feed source, the first electromagnetic wave signal including an electromagnetic wave signal of at least one of a medium-high frequency MHB band and an ultra-high frequency UHB band; causing, by the fifth feed, the fifth antenna radiator to receive and transmit a fifth electromagnetic wave signal comprising electromagnetic wave signals of at least one of an MHB frequency band and an UHB frequency band; and enabling the sixth antenna radiator to transmit and receive a sixth electromagnetic wave signal through the sixth feed source, wherein the sixth electromagnetic wave signal comprises an electromagnetic wave signal of a UHB frequency band.

5. The electronic device of claim 4, the first antenna unit further comprising: a first matching circuit, a fifth matching circuit, and a sixth matching circuit;

the first feed source is electrically connected with the first antenna radiator through the first matching circuit, the fifth feed source is electrically connected with the fifth antenna radiator through the fifth matching circuit, and the sixth feed source is electrically connected with the sixth antenna radiator through the sixth matching circuit.

6. The electronic device of claim 5, the first antenna radiator being grounded through at least one of a capacitance C1, a capacitance C2, and a capacitance C3.

7. The electronic device of claim 6, further comprising a dc blocking capacitor C4 in series between the first matching circuit and the first antenna radiator.

8. The electronic device of claim 7, wherein the SAR sensor is connected between the capacitor C1 or the capacitor C3 or the capacitor C4 and the first antenna radiator by a series first inductance L1, or the SAR sensor is connected at any position of the first antenna radiator by a series first inductance L1.

9. The electronic device of claim 1 or 2, the second antenna unit further comprising: a seventh antenna radiator;

the second antenna radiator and the seventh antenna radiator 1 are sequentially arranged; one end of the second antenna radiator is suspended, and the other end of the second antenna radiator is coupled with one end of the seventh antenna radiator; the other end of the seventh antenna radiator is grounded.

10. The electronic device of claim 9, the second antenna unit further comprising: a second feed source and a seventh feed source;

The second feed source enables the second antenna radiator to transmit and receive a second electromagnetic wave signal, and the second electromagnetic wave signal comprises an electromagnetic wave signal of a low-frequency LB frequency band; the seventh antenna radiator is caused to transmit and receive a seventh electromagnetic wave signal including an electromagnetic wave signal of at least one of an MHB frequency band and an UHB frequency band by the seventh feed.

11. The electronic device of claim 10, the second antenna unit further comprising: a second matching circuit, a seventh matching circuit;

the second feed source is electrically connected with the second antenna radiator through the second matching circuit, and the seventh feed source is electrically connected with the seventh antenna radiator through the seventh matching circuit.

12. The electronic device of claim 11, wherein the second antenna radiator is grounded through a tuning circuit.

13. The electronic device of claim 12, further comprising a dc blocking capacitor C5 connected in series between the second matching circuit and the second antenna radiator, and a dc blocking capacitor C6 connected in series between the tuning circuit T1 and the second antenna radiator.

14. The electronic device of claim 13, wherein the SAR sensor is connected between the capacitor C5 and the second antenna radiator by a series second inductance L2, or is connected at any position of the second antenna radiator by a series second inductance L2.