Electronic device

Abstract

The invention discloses electronic equipment, and relates to the technical field of antennas. The electronic equipment comprises a frame body, the frame body comprises a radiation assembly, the radiation assembly is annular, the radiation assembly comprises a first strip-shaped radiation body and a second strip-shaped radiation body, and the first strip-shaped radiation body and the second strip-shaped radiation body are oppositely arranged. The first strip-shaped radiating bodies and the second strip-shaped radiating bodies are arranged at intervals along the thickness direction of the frame body; the first strip-shaped radiator comprises a feeding point and a grounding point.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to an electronic device. Background Art

[0002] Terminal antennas are an integral part of wireless communication systems, and their development is crucial to the advancement and widespread adoption of communication technology. As the demands for complex mobile terminal scenarios continue to grow, antenna solutions are constantly being upgraded and iterated. With the advent of the 5G era and the rapid development and commercialization of new technologies such as the Internet of Everything, smart home wearables, and VR, the importance of mobile terminal antenna technology has become even more prominent.

[0003] In the related art, some mobile terminals often have antennas deployed in their bezels. However, mobile terminal usage scenarios are very complex, including free-standing scenarios, hand-on scenarios, head-on scenarios, and gaming scenarios. In some scenarios, the user's body may block the antennas deployed in the bezel. When the user's body blocks the antennas deployed in the bezel, the antenna performance will be significantly reduced. Therefore, in the related art, the bezel antennas of mobile terminals have the problem of poor antenna performance in some usage scenarios. Summary of the Invention

[0004] The present application provides an electronic device that can improve the antenna performance of a border antenna.

[0005] In a first aspect, the present application provides an electronic device, comprising a frame, the frame comprising a radiation assembly, the radiation assembly being ring-shaped and comprising a first strip radiator and a second strip radiator, the first strip radiator and the second strip radiator being arranged opposite each other and spaced apart along a thickness direction of the frame;

[0006] The first strip radiator includes a feeding point and a grounding point.

[0007] In the embodiment of the present application, since the radiation component is ring-shaped, that is, there is an opening inside the radiation component, this is beneficial to increasing the antenna aperture of the border antenna to which the radiation component belongs, thereby improving the antenna performance of the border antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a schematic structural diagram of an electronic device in an embodiment of the present application;

[0009] Figure 2 This is one of the side views of the bottom frame of the electronic device in an embodiment of the present application;

[0010] Figure 3This is a second side view of the bottom frame of the electronic device in an embodiment of the present application;

[0011] Figure 4 This is a third side view of the bottom frame of the electronic device in an embodiment of the present application;

[0012] Figure 5 yes Figure 4 A partial enlarged view of region E in FIG;

[0013] Figure 6 This is a fourth side view of the bottom frame of the electronic device in an embodiment of the present application;

[0014] Figure 7 (a) Yes Figure 3 The radiation pattern obtained by simulating the antenna when the first switch element and the second switch element of the antenna in the illustrated embodiment are both in the on state;

[0015] Figure 7 (b) Yes Figure 3 The radiation pattern obtained by simulating the antenna when the first switch element and the second switch element of the antenna in the illustrated embodiment are both in the off state;

[0016] Figure 8 Yes Figure 2 and Figure 3 A schematic diagram showing a comparison of simulation results of the embodiment shown;

[0017] Figure 9 (a) Yes Figure 2 The electric field distribution diagram obtained by simulation of the embodiment shown;

[0018] Figure 9 (b) is correct Figure 3 The electric field distribution diagram obtained by simulation of the embodiment shown;

[0019] Figure 10 (a) is a schematic diagram of the electronic device in a free state;

[0020] Figure 10 (b) is a schematic diagram of the electronic device in a handheld state;

[0021] Figure 10 (c) is a schematic diagram of the electronic device in the head-hand state. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0023] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0024] Below, in combination with the accompanying drawings, a folding screen device and electronic device provided by the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0025] See Figures 1 to 6 An embodiment of the present application provides an electronic device, including a frame 100 and a feed source 200. The frame 100 includes a radiation assembly 110. The radiation assembly 110 is ring-shaped and includes a first strip radiator 111 and a second strip radiator 112. The first strip radiator 111 and the second strip radiator 112 are arranged opposite to each other and are spaced apart from each other along the thickness direction of the frame 100.

[0026] The first strip radiator 111 includes a feeding point 115 and a grounding point 114 . The feed source 200 is electrically connected to the feeding point 115 , and the grounding point 114 is grounded.

[0027] The frame 100 may be a metal middle frame of an electronic device. The upper radiation component 110 may be one of the border areas of the frame 100, for example, see Figure 1 and Figure 2 In some embodiments of the present application, the radiation component 110 may be located in the bottom frame area of ​​the frame 100, and the length direction of the first strip radiator 111 is the same as the length direction of the bottom frame, and the length direction of the second strip radiator 112 is the same as the length direction of the bottom frame. It is understood that the radiation component 110 can be separated from other conductive areas of the frame 100 by a break, for example, see Figure 1 , a break is provided on each side of the radiation component 110.

[0028] See Figure 2In some embodiments of the present application, the first strip radiator 111 and the second strip radiator 112 may be two strip-shaped areas separated by the charging hole 113 in the frame 100. The sum of the thickness of the first strip radiator 111, the thickness of the second strip radiator 112, and the thickness of the charging hole 113 in the thickness direction of the electronic device is equal to the thickness of the frame 100, that is, the sum of the thickness of the first strip radiator 111 and the second strip radiator 112 is less than the thickness of the frame 100. It should be noted that in Figure 2 In the embodiment shown, the end surface of the first strip radiator 111 facing away from the second strip radiator 112 and the end surface of the frame 100 facing the rear cover surface 300 are located in the same plane, and the end surface of the second strip radiator 112 facing away from the first strip radiator 111 and the end surface of the frame 100 facing the display end surface 400 are located in the same plane. Figure 3 In the illustrated embodiment, the end surface of the first strip radiator 111 facing away from the second strip radiator 112 and the end surface of the frame 100 facing the display end surface 400 are located in the same plane, and the end surface of the second strip radiator 112 facing away from the first strip radiator 111 and the end surface of the frame 100 facing the back cover surface 300 are located in the same plane.

[0029] It should be noted that, in other embodiments of the present application, the radiation component 110 may also be arranged on the side frame or bottom frame of the electronic device, and may be specifically arranged as needed.

[0030] The feed source 200 may be a radio frequency circuit inside an electronic device, and the radio frequency circuit may transmit and receive signals based on the radiating element 110 to realize the antenna function. The antenna formed by the radiating element 110 may be of various types, for example, a medium-high frequency antenna or a low-frequency antenna. The antenna type formed by the radiating element 110 may be of various types, for example, an inverted-F antenna (IFA), a monopole antenna, a T antenna, etc.

[0031] In related technologies, a middle-high-band (MHB) antenna is designed on the bottom frame of an electronic device. This MHB antenna is widely used in free-space and head-hand scenarios. On the one hand, the bottom of the electronic device has good clearance, and the bottom MHB usually has good free-space performance, which can greatly improve the communication quality in free-space scenarios. On the other hand, the MHB antennas on the top and sides of the electronic device are too close to the human head, and the specific absorption rate (SAR) in the head-hand scenario will be greatly derated, and the head-hand efficiency will also be more derated than the free efficiency, resulting in a significant reduction in performance; the bottom MHB antenna is far away from the head and does not require head-down SAR, so it has obvious communication advantages in the head-hand scenario.

[0032] like Figure 10 Shown is a schematic diagram of the bottom MHB antenna of an electronic device in different usage scenarios in the related art. Figure 10 (a) Schematic diagram of the electronic device operating in a free state. At this time, the electronic device is not affected by the head and hands, the bottom antenna environment is good, and the free efficiency is high. Figure 10 (b) is a schematic diagram of the bottom MHB antenna operating in the handheld state. In this scenario, the palm of a human hand is held near the bottom MHB antenna, affecting the antenna efficiency. The difference between the efficiency in the hand-held state and the efficiency in the free state is called the hand derating. Figure 10 (c) is a schematic diagram of the bottom MHB antenna working in the head-hand state. It can be seen that in the head-hand state, the hand is closest to the bottom MHB antenna. At this time, the performance of the MHB antenna is poor.

[0033] Based on this, in an embodiment of the present application, the above-mentioned radiation component 110 can be located at the bottom frame of the frame 100. Accordingly, the radiation component 110 can serve as a radiator of the MHB antenna in the bottom frame to improve the antenna performance of the MHB antenna.

[0034] The feed source 200 may be electrically connected to the feed point 115 via a feed line. The grounding point 114 of the first strip radiator 111 may be electrically connected to the main ground inside the electronic device via a wiring, so that the grounding point 114 is grounded.

[0035] Since the thickness direction of the frame 100 is the same as the thickness direction of the electronic device, the above-mentioned first strip radiator 111 and the second strip radiator 112 are arranged at intervals along the thickness direction of the frame 100, which may also mean that the first strip radiator 111 and the second strip radiator 112 are arranged at intervals along the thickness direction of the electronic device, that is, one of the first strip radiator 111 and the second strip radiator 112 is close to the display end surface 400 of the electronic device, and the other is close to the back cover surface 300 of the electronic device.

[0036] See Figure 2 In some embodiments of the present application, the radiation component 110 is composed of four segments A, B, C, and D to form a whole, wherein segment A is the first strip radiator 111 and segment B is the second strip radiator 112. Figure 3 In some other embodiments of the present application, cancel Figure 3 The C and D segments are metal, and a first switch element 116 and a second switch element 117 are set at the locations of the C and D segments.

[0037] In this embodiment, since the radiation component 110 is ring-shaped, that is, there is an opening inside the radiation component 110, this is beneficial to increasing the antenna aperture of the frame antenna to which the radiation component 110 belongs, thereby improving the antenna performance of the frame antenna.

[0038] Figure 2 The MHB antenna in the embodiment shown has good free efficiency. However, when a person holds an electronic device, the radiation of the MHB antenna is greatly affected by the influence of the hand, and the antenna efficiency is significantly reduced. The MHB antenna is the main antenna of the MHB in the head-hand mode. Therefore, Figure 2 In the illustrated embodiment, the electronic device has poor performance in the MHB mode in the head-and-hand mode. Based on this, in the embodiment of the present application, the radiating component 110 further includes a first switch 116 and a second switch 117 to improve the antenna performance of the MHB antenna in the head-and-hand mode.

[0039] Optionally, the radiation component 110 also includes a first switch element 116 and a second switch element 117, the first end 1111 of the first strip radiator 111 is electrically connected to the first end 1121 of the second strip radiator 112 through the first switch element 116, and the second end 1112 of the first strip radiator 111 is electrically connected to the second end 1122 of the second strip radiator 112 through the second switch element 117.

[0040] See Figure 3 In the embodiment of the present application, the first strip radiator 111, the first switch element 116, the second strip radiator 112, and the second switch element 117 can be connected end to end in sequence to form the ring-shaped radiating element 110. That is, the first end 1111 of the first strip radiator 111 and the first end 1121 of the second strip radiator 112 are located on the same side of the radiating element 110; and the second end 1112 of the first strip radiator 111 and the second end 1122 of the second strip radiator 112 are located on the same side of the radiating element 110.

[0041] The first switch element 116 can have an on state and an off state. When the first switch element 116 is in the on state, the first end 1111 of the first strip radiator 111 is electrically connected to the first end 1121 of the second strip radiator 112 via the first switch element 116. When the first switch element 116 is in the off state, the first end 1111 of the first strip radiator 111 is relatively disconnected from the first end 1121 of the second strip radiator 112. Correspondingly, the second switch element 117 can have an on state and an off state. When the second switch element 117 is in the on state, the second end 1112 of the first strip radiator 111 is electrically connected to the second end 1122 of the second strip radiator 112 via the second switch element 117. When the second switch element 117 is in the off state, the second end 1112 of the first strip radiator 111 is relatively disconnected from the second end 1122 of the second strip radiator 112. The first switch element 116 and the second switch element 117 may be various switch elements including an on state and an off state. For example, in some embodiments of the present application, the first switch element 116 and the second switch element 117 may be single-pole double-throw switches respectively.

[0042] During the operation of the above-mentioned electronic device, the radiation direction of the above-mentioned MHB antenna can be adjusted by controlling the on-off state of the above-mentioned first switch element 116 and the second switch element 117. For example, in a head-hand working scenario, when the human hand is close to the MHB antenna, the on-off state of the above-mentioned first switch element 116 and the second switch element 117 can be controlled to reduce the radiation proportion of the MHB antenna toward the hand side, thereby reducing the influence of the human hand on the MHB antenna, and further reducing the head-hand derating of the MHB antenna.

[0043] In this embodiment, the radiation component 110 further includes a first switch 116 and a second switch 117, and the first end 1111 of the first strip radiator 111 is electrically connected to the first end 1121 of the second strip radiator 112 through the first switch 116, and the second end 1112 of the first strip radiator 111 is electrically connected to the second end 1122 of the second strip radiator 112 through the second switch 117. In this way, the radiation direction of the radiation component 110 can be adjusted by controlling the on-off state of the first switch 116 and the second switch 117, thereby reducing the influence of human hands on the MHB antenna, and further reducing the head-hand derating of the MHB antenna.

[0044] Alternatively, see Figure 3, the electronic device includes a display end surface 400, and the distance between the first strip radiator 111 and the display end surface 400 is smaller than the distance between the second strip radiator 112 and the display end surface 400;

[0045] When the electronic device is in the first operating mode, the first switch element 116 and the second switch element 117 are both in the on state;

[0046] When the electronic device is in the second operating mode, the first switch element 116 and the second switch element 117 are both in an off state.

[0047] The display end face 400 is the end face where the display screen of the electronic device is located. It is understood that the electronic device further includes a back cover face 300 opposite to the display end face 400. Figure 3 In the illustrated embodiment, since the distance between the first strip radiator 111 and the display end surface 400 is smaller than the distance between the second strip radiator 112 and the display end surface 400, the first strip radiator 111 is close to the display end surface 400 of the electronic device, and the second strip radiator 112 is close to the back cover surface 300 of the electronic device.

[0048] When the first switch 116 and the second switch 117 are both in the on state, the first strip radiator 111, the first switch 116, the second strip radiator 112, and the second switch 117 are connected end to end to form a ring radiator. Accordingly, when the first switch 116 and the second switch 117 are both in the off state, the ends of the first strip radiator 111 and the ends of the second strip radiator 112 are relatively disconnected. At this time, because the feed point 115 is located on the first strip radiator 111, the radiation component 110 radiates primarily through the first strip radiator 111.

[0049] The above-mentioned first working mode may include other modes besides the head-hand mode, for example, it may include a free mode, a human hand mode and a game mode, etc. The free mode is a mode in which the electronic device is not held, for example, a mode in which the electronic device is placed horizontally on a desktop; the human hand mode is a mode in which the user holds the electronic device; the game mode may be a horizontal screen mode in which the user holds the electronic device with both hands. Correspondingly, the second working mode may be a head-hand mode, wherein the head-hand mode may refer to a mode in which the user holds the electronic device and places the earpiece of the electronic device close to the user's ear, for example, it may be a mode in which the user holds the electronic device for a call. In order to facilitate the explanation of the difference between the first working mode and the second working mode, in the embodiment of the present application, the electronic device provided in the embodiment of the present application is further explained by taking the first working mode as the free mode and the second working mode as the head-hand mode as an example.

[0050] See Figure 3 In the embodiment of the present application, the MHB antenna is an IFA antenna. The switch control logic of the MHB antenna is shown in Table 1 below:

[0051] Table 1:

[0052] First switch element 116 Second switch element 117 First working mode conduction conduction Second working mode disconnect disconnect

[0053] When the electronic device is in the first working mode, since the first switch element 116 and the second switch element 117 are both in the on state, the MHB antenna can be equivalent to: Figure 2 In the illustrated embodiment, segments A and B form a complete radiator, achieving optimal free antenna efficiency. When the electronic device is in its second operating mode, first switch 116 and second switch 117 are disconnected. This makes segment A an independent radiator, altering the radiation field distribution of segment B. This reduces the radiation field contribution from the back of the device, thereby minimizing the weakening effect of hand-held antenna radiation and effectively reducing head-hand derating. The reduced contribution of the back antenna field near the hand results in optimal head-hand derating.

[0054] In order to better Figure 3 The effects and principles of the embodiments shown are described below. Figure 7 Shown Figure 3 Comparison of radiation patterns of the embodiment shown in the free state and head-hand state. Figure 7 (a) It can be seen that the radiation ratio on both sides of the display end surface 400 and the rear cover surface 300 in the combined state where the first switch element 116 and the second switch element 117 are both turned on is almost the same. When a person's hand approaches the rear cover surface 300 of the entire device and grips it, the field on the rear cover surface 300 will inevitably be greatly affected, so the efficiency will be significantly reduced. Figure 7As shown in (b), when the first switch 116 and the second switch 117 are both disconnected, since section A and section B become two independent metal sections, when the MHB antenna of section B is working, the excited field distribution is mainly located in section B close to the screen side. Section A plays the role of isolation and reduces the influence of human hands when human hands approach. When human hands approach, the influence on the MHB antenna is also reduced, thereby achieving the effect of reducing the head-hand derating.

[0055] Figure 9 Shown Figure 2 The illustrated embodiments and Figure 3 In the embodiment shown, the electric field distribution diagram when a human hand approaches is compared. Figure 9 (a) is a schematic diagram of a human hand holding an electronic device, such as Figure 9 As shown in (a), Figure 2 In the embodiment shown, when a human hand approaches, the electric field distribution on the side of the rear cover surface 300 close to the human hand is very strong, and the human hand has a great influence on the field distribution; Figure 9 As shown in (b), Figure 3 In the embodiment shown, due to the presence of section A, the proportion of the electric field on the side of the rear cover 300 will be significantly reduced, and the impact on the entire antenna will also be reduced when the hand approaches, thereby achieving the purpose of reducing the head-hand derating.

[0056] To better illustrate Figure 3 Advantages of the embodiment shown, the embodiment of the present application further Figure 2 The illustrated embodiments and Figure 3 The embodiment shown is a simulation comparison diagram, and the 1.8GHz efficiency in the B3 band of MHB is selected as a fixed frequency comparison illustration. Figure 3 The embodiment shown optimizes the head and hand derating. Figure 8 Curve 1, Curve 3 and Curve 5 are pairs Figure 2 The curve obtained by simulation of the embodiment shown. Figure 8 Curve 2, Curve 4 and Curve 5 are opposite Figure 3 The curve obtained by simulation of the embodiment shown. Figure 8 , we can see from the free state comparison that Figure 2 The illustrated embodiments and Figure 3 In the embodiment shown, when the switch is turned on, the MHB antenna radiating metal aperture is relatively large, and the free state can achieve better antenna efficiency. Figure 3 In the embodiment shown, the two switches are switched to the off state. At this time, the left-hand holding mode and the right-hand holding mode have different effects on the antenna performance. The difference in the left hand is relatively small, with a 0.5dB derating benefit. The right hand derating is significantly better. Figure 2 The embodiment shown has a gain of more than 2dB, and the average gain of the left and right head and hands is close to 1.5dB. Figure 3The head-hand performance in the embodiment shown is significantly better than Figure 2 In the embodiment shown, the control of the antenna state by the switch element can achieve a significant improvement in the head-to-hand performance index and the actual user experience while ensuring a better free antenna performance.

[0057] In this embodiment, by controlling the on / off states of the first switch 116 and the second switch 117 according to the operating mode of the electronic device, the radiation ratio of the MHB antenna in different operating modes and orientations can be adjusted. This ensures that the MHB antenna has superior radiation efficiency in free mode while effectively minimizing head-to-hand derating in head-to-hand mode, improving the communication performance of the MHB antenna in head-to-hand mode and enhancing the actual user experience.

[0058] Optionally, the radiation component 110 also includes an electrical length adjustment module 118, and the second strip radiator 112 includes a first segment 1123 and a second segment 1124, and the first segment 1123 and the second segment 1124 are arranged at intervals along the length direction of the second strip radiator 112, and the first segment 1123 is electrically connected to the second segment 1124 through the electrical length adjustment module 118, and the electrical length adjustment module 118 is used to adjust the electrical length of the second strip radiator 112.

[0059] In this embodiment, the first segment 1123 is electrically connected to the second segment 1124 through the electrical length adjustment module 118, so that the electrical length of the second strip radiator 112 can be adjusted by the electrical length adjustment module 118. In this way, by changing the electrical length of the second strip radiator 112, when the electronic device is in the second working mode, the second strip radiator 112 and the first strip radiator 111 can construct a structure similar to a Yagi antenna reflector. In this way, the second strip radiator 112 can reflect the energy radiated by the first strip radiator 111 toward the side of the back cover 300, thereby eliminating the back lobe of the radiation pattern of the first strip radiator 111 on the back cover 300, thereby achieving the purpose of increasing the radiation ratio on the screen side. Figure 3 For the embodiment shown, Figure 3 In the illustrated embodiment, the influence of human hands on the MHB antenna is further reduced, and the head-hand derating is further improved.

[0060] Optionally, when the electronic device is in the first operating mode, the electrical length adjustment module 118 is in a first state, and the electrical length of the second strip radiator 112 is equal to the electrical length of the first strip radiator 111;

[0061] When the electronic device is in the second operating mode, the electrical length adjustment module 118 is in the second state, and the electrical length of the second strip radiator 112 is greater than the electrical length of the first strip radiator 111 .

[0062] It is understood that when the electrical length adjustment module 118 is in the first state, the electrical length of the second strip radiator 112 is equal to the electrical length of the first strip radiator 111. When the electrical length adjustment module 118 is in the first state, the electrical length of the second strip radiator 112 is greater than the electrical length of the first strip radiator 111.

[0063] In this embodiment, when the electronic device is in the first working mode, since the electrical length of the second strip radiator 112 is equal to the electrical length of the first strip radiator 111, the radiation effect of the radiation component 110 is the same as that of the first strip radiator 111. Figure 2 The embodiment shown is similar and has good free performance. Accordingly, when the electronic device is in the second operating mode, since the electrical length of the second strip radiator 112 is greater than the electrical length of the first strip radiator 111, the second strip radiator 112 and the first strip radiator 111 can be constructed into a structure similar to a Yagi antenna reflector. In this way, the second strip radiator 112 can reflect the energy radiated by the first strip radiator 111 toward the side of the back cover 300, thereby eliminating the back lobe of the radiation pattern of the first strip radiator 111 on the back cover 300, thereby achieving the purpose of increasing the proportion of radiation on the screen side.

[0064] Optionally, the electrical length adjustment module 118 includes a third switch element 1181 and an inductor 1182. The switch element includes a first connection point 1183, a second connection point 1184, and a third connection point 1185. The first connection point 1183 is connected to an end of the first segment 1123 facing the second segment 1124, the second connection point 1184 is connected to an end of the second segment 1124 facing the first segment 1123, and the third connection point 1185 is connected to an end of the second segment 1124 facing the first segment 1123 through the inductor 1182.

[0065] When the electrical length adjustment module 118 is in the first state, the first connection bit 1183 and the second connection bit 1184 are connected, and the first connection bit 1183 and the third connection bit 1185 are disconnected;

[0066] When the electrical length adjustment module 118 is in the second state, the first connection bit 1183 and the second connection bit 1184 are disconnected, and the first connection bit 1183 and the third connection bit 1185 are connected.

[0067] The switch control logic of the MHB antenna is shown in Table 2 below:

[0068] Table 2:

[0069]

[0070] It is understood that when the electrical length adjustment module 118 is in the first state, the first segment 1123 and the second segment 1124 are directly connected; when the electrical length adjustment module 118 is in the second state, the first segment 1123 and the second segment 1124 are connected via the inductor 1182, wherein the inductor 1182 can be an inductor 1182 with a relatively small value. The third switch 1181 can be a single-pole double-throw switch, and by controlling the third switch 1181, the conductive path between the first segment 1123 and the second segment 1124 can be switched.

[0071] exist Figure 4 In the illustrated embodiment, a third switch 1181 is introduced in section A near the rear cover 300. By switching the third switch 1181, the first segment 1123 and the second segment 1124 can switch between different paths of conduction. Referring to Table 2, when the electronic device is in the first operating mode, the first switch 116 and the second switch 117 are both in the conducting state. At the same time, the first connection point 1183 is connected to the second connection point 1184, and the first connection point 1183 is disconnected from the third connection point 1185. That is, the first segment 1123 and the second segment 1124 are directly connected. At this time, Figure 4 The embodiment shown can be equivalent to Figure 2 The illustrated embodiment exhibits superior free antenna performance. When the electronic device is in the second operating mode, the first switch element 116 and the second switch element 117 are both in the off state. At this point, the first connection point 1183 is disconnected from the second connection point 1184, and the first connection point 1183 is connected to the third connection point 1185. This means that the first segment 1123 is connected to the second segment 1124 via the inductor 1182. By connecting the inductor 1182 between the first segment 1123 and the second segment 1124, the equivalent electrical length of segment A can be made slightly longer than that of segment B. In this case, segment A acts like a Yagi antenna reflector, further eliminating the back lobe of segment B's radiation pattern on the rear cover 300, thereby increasing the proportion of screen-side radiation.

[0072] In this embodiment, the electrical length adjustment module 118 includes a third switch 1181 and an inductor 1182, and the switch includes a first connection position 1183, a second connection position 1184 and a third connection position 1185. The first connection position 1183 is connected to one end of the first segment 1123 toward the second segment 1124, the second connection position 1184 is connected to one end of the second segment 1124 toward the first segment 1123, and the third connection position 1185 is connected to the second segment 1124 toward the end of the first segment 1123 through the inductor 1182. One end of the first segment 1123 is connected, and it is further arranged that when the electrical length adjustment module 118 is in the second state, the first connection position 1183 and the second connection position 1184 are disconnected, and the first connection position 1183 and the third connection position 1185 are connected. In this way, in the head-hand mode, the equivalent electrical length of section A can be changed to construct a reflector-like structure, thereby further reducing the radiation direction back lobe of the MHB antenna on the back cover side, thereby reducing the impact on the antenna when held by hand, and reducing the antenna derating in the head-hand scenario.

[0073] Alternatively, see Figure 6 In some embodiments of the present application, the electronic device includes a display end surface 400, and the distance between the first strip radiator 111 and the display end surface 400 is greater than the distance between the second strip radiator 112 and the display end surface 400;

[0074] The radiation component 110 also includes a fourth switch element 1190 and a fifth switch element 1200. The second strip radiator 112 includes a third segment 1125, a fourth segment 1126 and a fifth segment 1127 arranged in sequence along the length direction of the second strip radiator 112. The third segment 1125 is electrically connected to the fourth segment 1126 through the fourth switch element 1190, and the fourth segment 1126 is electrically connected to the fifth segment 1127 through the fifth switch element 1200. The length of the fourth segment 1126 is less than the length of the first strip radiator 111.

[0075] exist Figure 6 In the illustrated embodiment, since the distance between the first strip radiator 111 and the display end surface 400 is greater than the distance between the second strip radiator 112 and the display end surface 400, the first strip radiator 111 is close to the back cover surface 300 of the electronic device, and the second strip radiator 112 is close to the display end surface 400 of the electronic device.

[0076] The fourth switch 1190 and the fifth switch 1200 may be single-pole, single-throw switches. When the fourth switch 1190 is in the on state, the third segment 1125 and the fourth segment 1126 are connected; when the fourth switch 1190 is in the off state, the third segment 1125 and the fourth segment 1126 are relatively disconnected. Correspondingly, when the fifth switch 1200 is in the on state, the fourth switch 1190 and the fifth switch 1200 are connected; when the fifth switch 1200 is in the off state, the fourth switch 1190 and the fifth switch 1200 are relatively disconnected.

[0077] In this embodiment, since the length of the fourth segment 1126 is less than the length of the first strip radiator 111, when the fourth switch element 1190 and the fifth switch element 1200 are in the disconnected state, the fourth segment 1126 can play a role similar to that of a director in a Yagi antenna, thereby pulling the radiation pattern of section A of the main radiator closer to the display end surface 400, which is beneficial to enhancing the radiation ratio on the screen side, thereby reducing the influence of the human hand on the MHB antenna in the head-hand mode, and further reducing the antenna derating in the head-hand mode.

[0078] Optionally, when the electronic device is in the first operating mode, the first switch element 116 , the second switch element 117 , the fourth switch element 1190 and the fifth switch element 1200 are respectively in a conducting state;

[0079] When the electronic device is in the second operating mode, the first switch element 116 , the second switch element 117 , the fourth switch element 1190 , and the fifth switch element 1200 are respectively in an off state.

[0080] The switch control logic of the MHB antenna is shown in Table 3 below:

[0081] Table 3:

[0082]

[0083] See Figure 6 In the embodiment of the present application, the feeding point 115 of the MHB antenna is located in the A section close to the back cover 300. In addition to the first switch 116 and the second switch 117, a fourth switch 1190 and a fifth switch 1200 are further introduced in the B section. In the embodiment of the present application, the lengths of the A section and the B section are both defined as L, and the length of the fourth segment 1126 is L34, L34≈0.9L. In order to better Figure 6The working principle of the embodiment shown is described below. Please refer to Table 3. When the electronic device is in the first working mode, the first switch element 116, the second switch element 117, the fourth switch element 1190 and the fifth switch element 1200 are respectively in the on state. At this time, Figure 6 The embodiment shown can be equivalent to Figure 2 The embodiment shown has better free antenna performance. When the electronic device is in the second working mode, the first switch element 116, the second switch element 117, the fourth switch element 1190 and the fifth switch element 1200 are respectively in the off state.

[0084] At this time, the effective length of segment B is no longer L, but the length L34 of the fourth segment 1126. At this time, L34 plays the role of a director in a Yagi antenna, which can pull the radiation pattern of segment A of the main radiator closer to the display end surface 400, thereby enhancing the radiation ratio on the screen side, thereby reducing the impact of human hands on the MHB antenna in the head-hand mode, and further reducing the antenna derating in the head-hand mode.

[0085] In this embodiment, when the electronic device is in the second operating mode, the first switch element 116, the second switch element 117, the fourth switch element 1190 and the fifth switch element 1200 are respectively in the disconnected state, so that the fourth segment 1126 can construct the effect of a director to reduce the head-hand derating.

[0086] Optionally, the length of the fourth segment 1126 is 0.8 to 0.95 times the length of the first strip radiator 111 .

[0087] Among them, the length of the fourth segment 1126 is 0.8 to 0.95 times the length of the first strip radiator 111, which means that the value range of L34 is 0.8L to 0.95L. For example, in some embodiments of the present application, L34≈0.9L, and for example, in other embodiments of the present application, L34≈0.85L.

[0088] In this embodiment, by making the length of the fourth segment 1126 0.8 to 0.95 times the length of the first strip radiator 111 , the fourth segment 1126 can function as a director when the electronic device is in the second operating mode.

[0089] Optionally, the frame 100 is provided with a charging hole 113 , and the radiation component 110 is disposed around the charging hole 113 .

[0090] In this embodiment, the radiation component 110 is arranged around the charging hole 113. In this way, since the through hole inside the ring component can be used as the charging hole 113, there is no need to open an additional through hole in the frame 100 to form the radiation component 110, which is beneficial to improving the overall aesthetics of the electronic device.

[0091] Optionally, the first operating mode includes a mode in which the earpiece of the electronic device is in a closed state; the second operating mode includes a mode in which the earpiece of the electronic device is in an open state.

[0092] It is understandable that when a user holds an electronic device close to his ear to make a call, the earpiece of the electronic device is usually in the on state, which is also called the head-hand working mode. When the electronic device is in other working modes other than the head-hand working mode, the earpiece of the electronic device is usually in the off state.

[0093] In this embodiment, since the first operating mode includes a mode in which the earpiece of the electronic device is in a closed state, and the second operating mode includes a mode in which the earpiece of the electronic device is in an open state, the operating mode of the electronic device can be determined by monitoring whether the earpiece of the electronic device is in an open state. That is, when the earpiece of the electronic device is in a closed state, the electronic device is determined to be in the first operating mode; when the earpiece of the electronic device is in an open state, the electronic device is determined to be in the second operating mode. Then, based on the determined operating mode, the state of the switch element in the radiating component 110 can be controlled to ensure that the MHB antenna has a good radiation effect in each state.

[0094] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. An electronic device, characterized in that: The device comprises a frame, the frame comprising a radiation assembly, the radiation assembly being ring-shaped and comprising a first strip radiator and a second strip radiator, the first strip radiator and the second strip radiator being arranged opposite to each other and spaced apart along a thickness direction of the frame; The first strip radiator includes a feeding point and a grounding point.

2. The electronic device according to claim 1, wherein The radiation component also includes a first switch element and a second switch element. The first end of the first strip radiator is electrically connected to the first end of the second strip radiator through the first switch element, and the second end of the first strip radiator is electrically connected to the second end of the second strip radiator through the second switch element.

3. The electronic device according to claim 2, wherein: The electronic device includes a display end surface, and a distance between the first strip radiator and the display end surface is smaller than a distance between the second strip radiator and the display end surface; When the electronic device is in the first operating mode, the first switch element and the second switch element are both in a conducting state; When the electronic device is in the second operating mode, the first switch element and the second switch element are respectively in an off state.

4. The electronic device according to claim 3, wherein: The radiation component also includes an electrical length adjustment module. The second strip radiator includes a first segment and a second segment. The first segment and the second segment are arranged at intervals along the length direction of the second strip radiator. The first segment is electrically connected to the second segment through the electrical length adjustment module. The electrical length adjustment module is used to adjust the electrical length of the second strip radiator.

5. The electronic device according to claim 4, characterized in that When the electronic device is in the first operating mode, the electrical length adjustment module is in a first state, and the electrical length of the second strip radiator is equal to the electrical length of the first strip radiator; When the electronic device is in the second operating mode, the electrical length adjustment module is in a second state, and the electrical length of the second strip radiator is greater than the electrical length of the first strip radiator.

6. The electronic device according to claim 5, characterized in that The electrical length adjustment module includes a third switch and an inductor, wherein the switch includes a first connection position, a second connection position, and a third connection position, wherein the first connection position is connected to an end of the first segment facing the second segment, the second connection position is connected to an end of the second segment facing the first segment, and the third connection position is connected to an end of the second segment facing the first segment via the inductor; When the electrical length adjustment module is in the first state, the first connection bit is connected to the second connection bit, and the first connection bit is disconnected from the third connection bit; When the electrical length adjustment module is in the second state, the first connection bit and the second connection bit are disconnected, and the first connection bit and the third connection bit are connected.

7. The electronic device according to claim 2, wherein: The electronic device includes a display end surface, and the distance between the first strip radiator and the display end surface is greater than the distance between the second strip radiator and the display end surface; The radiation component also includes a fourth switch element and a fifth switch element. The second strip radiator includes a third segment, a fourth segment, and a fifth segment arranged in sequence along the length direction of the second strip radiator. The third segment is electrically connected to the fourth segment through the fourth switch element, and the fourth segment is electrically connected to the fifth segment through the fifth switch element. The length of the fourth segment is shorter than the length of the first strip radiator.

8. The electronic device according to claim 7, wherein: When the electronic device is in the first operating mode, the first switch element, the second switch element, the fourth switch element and the fifth switch element are respectively in a conducting state; When the electronic device is in the second operating mode, the first switch element, the second switch element, the fourth switch element, and the fifth switch element are respectively in an off state.

9. The electronic device according to claim 7, wherein: The length of the fourth segment is 0.8 to 0.95 times the length of the first strip radiator.

10. The electronic device according to claim 1, wherein The frame is provided with a charging hole, and the radiation component is arranged around the charging hole.

11. The electronic device according to any one of claims 3, 4, 5, 6 and 8, characterized in that: The first working mode includes a mode in which the earpiece of the electronic device is in a closed state; the second working mode includes a mode in which the earpiece of the electronic device is in an open state.

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