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 is provided with a first fracture and a second fracture, a first radiator is arranged between the first fracture and the second fracture, and the first radiator comprises a feeding point and a grounding point; the frame body comprises a medium filling area arranged around the first radiator, the medium filling area comprises a first filling area and a second filling area which are stacked in the thickness direction of the electronic equipment, and the first filling area is located between the second filling area and the display end face of the electronic equipment; wherein the dielectric constant of the medium filled in the first filling area is greater than the dielectric constant of the medium filled in the second filling area, or the effective dielectric constant of the medium filled in the first filling area is greater than the effective dielectric constant of the medium filled in the second filling area.

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 fifth-generation mobile communication technology (5G), and the rapid development and commercialization of new technologies such as the Internet of Things, smart home wearables, and virtual reality (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, including a frame, wherein the frame is provided with a first break and a second break, a first radiator is provided between the first break and the second break, and the first radiator includes a feeding point and a grounding point;

[0006] The frame includes a dielectric filling area arranged around the first radiator, the dielectric filling area includes a first filling area and a second filling area stacked along the thickness direction of the electronic device, and the first filling area is located between the second filling area and the display end surface of the electronic device;

[0007] The dielectric constant of the medium filled in the first filling area is greater than the dielectric constant of the medium filled in the second filling area, or the equivalent dielectric constant of the medium filled in the first filling area is greater than the equivalent dielectric constant of the medium filled in the second filling area.

[0008] In an embodiment of the present application, during the process of signal radiation from the radiator, when the dielectric constants of the media on both sides of the radiator are different, the radiated electric field generated by the radiator will migrate toward the side with the higher dielectric constant. Based on this, in an embodiment of the present application, by making the dielectric constant of the medium filled in the first filling area greater than the dielectric constant of the medium filled in the second filling area, or making the equivalent dielectric constant of the medium filled in the first filling area greater than the equivalent dielectric constant of the medium filled in the second filling area, during the operation of the radiator, the radiated electric field will migrate toward the first filling area. The first filling area is located between the second filling area and the display end surface of the electronic device, that is, the first filling area is the area of the dielectric filling area close to the display end surface. Therefore, during the operation of the radiator, the radiated electric field will migrate toward the display end surface, reducing the proportion of the radiated electric field on the back cover side of the electronic device. That is, when the user holds the electronic device from the back cover side, the proportion of the radiated electric field toward the hand side can be reduced, thereby reducing the influence of the hand on the antenna, thereby improving the antenna performance of the frame antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a schematic structural diagram of an electronic device in an embodiment of the present application;

[0010] Figure 2 This is one of the side views of the bottom frame of the electronic device in an embodiment of the present application;

[0011] Figure 3 It is a side view of a bottom frame of an electronic device in the related art;

[0012] Figure 4 This is a second side view of the bottom frame of the electronic device in an embodiment of the present application;

[0013] Figure 5 This is a third side view of the bottom frame of the electronic device in an embodiment of the present application;

[0014] Figure 6 is a schematic diagram of the positional relationship between the conductive layer and the first radiator in an embodiment of the present application;

[0015] Figure 7 yes Figure 6 In the illustrated embodiment, a side view of one side of the bottom frame of the electronic device;

[0016] Figure 8 Yes Figure 2 and Figure 3 Schematic diagram of the comparison of simulation results of the MHB antenna located at the bottom frame;

[0017] Figure 9 Yes Figure 7 Schematic diagram of simulation results of the MHB antenna located at the bottom frame;

[0018] Figure 10 It is a schematic diagram of three usage scenarios of the electronic device in the embodiment of the present application. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] 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.

[0022] See Figures 1 to 7 An embodiment of the present application provides an electronic device, including a frame 100 and a feed source 200. The frame 100 is provided with a first break 110 and a second break 120. A first radiator 130 is provided between the first break 110 and the second break 120. The first radiator 130 includes a feeding point 131 and a grounding point 132. The feed source 200 is electrically connected to the feeding point 131, and the grounding point 132 is grounded.

[0023] The frame 100 includes a dielectric filling area 300 arranged around the first radiator 130. The dielectric filling area 300 includes a first filling area 310 and a second filling area 320 stacked along the thickness direction of the electronic device. The first filling area 310 is located between the second filling area 320 and the display end surface 400 of the electronic device.

[0024] The dielectric constant of the medium filled in the first filling area 310 is greater than the dielectric constant of the medium filled in the second filling area 320 , or the equivalent dielectric constant of the medium filled in the first filling area 310 is greater than the equivalent dielectric constant of the medium filled in the second filling area 320 .

[0025] The frame 100 may be a metal middle frame of an electronic device. The first radiator 130 may be a border region of the frame 100, for example, see Figure 1 In some embodiments of the present application, the first radiator 130 can be located in the bottom frame area of the frame 100, and the length direction of the first radiator 130 is the same as the length direction of the bottom frame. It should be noted that in other embodiments of the present application, the first radiator 130 can also be set in the side frame of the electronic device, and the specific setting can be as needed.

[0026] The feed source 200 may be a radio frequency circuit within an electronic device, and the radio frequency circuit may transmit and receive signals based on the first radiator 130 to implement antenna functionality. The antenna formed by the first radiator 130 may be of various types, such as a medium-high frequency antenna or a low-frequency antenna. The antenna formed by the first radiator 130 may be of various types, such as an inverted-F antenna (IFA), a monopole antenna, or a T antenna.

[0027] The feed source 200 may be electrically connected to the feed point 131 via a feed line. The grounding point 132 of the first radiator 130 may be electrically connected to the main ground inside the electronic device via a wiring, so that the grounding point 132 is grounded.

[0028] It is understood that the first filling area 310 is close to the display end surface 400, and the second filling area 320 is close to the back cover surface 500 of the electronic device. Figure 3 In some embodiments of the present application, the first filling area 310 may include: a gap on the side of the first radiator 130 facing the display end surface 400, a partial area on the side of the first break 110 close to the display end surface 400, and a partial area on the side of the second break 120 close to the display end surface 400. The second filling area 320 may include: a gap on the side of the first radiator 130 facing the back cover surface 500, a partial area on the side of the first break 110 close to the back cover surface 500, and a partial area on the side of the second break 120 close to the back cover surface 500.

[0029] The equivalent dielectric constant of the medium filled in the first filling region 310 may refer to the average dielectric constant of each region within the first filling region 310 after the first filling region 310 is filled with the dielectric. Correspondingly, the equivalent dielectric constant of the medium filled in the second filling region 320 may refer to the average dielectric constant of each region within the second filling region 320 after the second filling region 320 is filled with the dielectric.

[0030] It can be understood that when the first filling area 310 has an area filled with medium and a hollow area not filled with medium, the equivalent dielectric constant of the medium filled in the first filling area 310 is: the weighted sum of the dielectric constant of the area filled with medium and the dielectric constant of the hollow area, wherein, in the weighted summation process, the weight of the dielectric constant of the area filled with medium is the volume ratio of the area filled with medium in the first filling area 310, and the weight of the dielectric constant of the hollow area is the volume ratio of the hollow area in the first filling area 310.

[0031] Correspondingly, when the second filling area 320 has an area filled with medium and a hollow area not filled with medium, the equivalent dielectric constant of the medium filled in the second filling area 320 is: the weighted sum of the dielectric constant of the area filled with medium and the dielectric constant of the hollow area, wherein, in the weighted summation process, the weight of the dielectric constant of the area filled with medium is the volume ratio of the area filled with medium in the second filling area 320, and the weight of the dielectric constant of the hollow area is the volume ratio of the hollow area in the second filling area 320.

[0032] In some embodiments of the present application, in order to make the equivalent dielectric constant of the medium filled in the first filling area 310 greater than the equivalent dielectric constant of the medium filled in the second filling area 320, media with different dielectric constants can be filled in the first filling area 310 and the second filling area 320 respectively, and / or, hollow areas of different volumes can be set in the first filling area 310 and the second filling area 320 respectively.

[0033] It can be understood that the medium filled in the first filling area 310 and the medium filled in the second filling area 320 are both insulating media.

[0034] 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.

[0035] 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.

[0036] Based on this, in the embodiment of the present application, the first radiator 130 can be located in the bottom frame of the frame 100. Accordingly, the first radiator 130 can serve as the radiator of the MHB antenna in the bottom frame to improve the antenna performance of the MHB antenna. For ease of understanding, the following uses the example of the first radiator 130 serving as the radiator of the MHB antenna in the bottom frame to further explain the structure and principles of the embodiment of the present application.

[0037] See Figure 3 , is a structural diagram of a frame antenna in the related art, wherein, Figure 3 The medium on the side of the middle frame antenna facing the display end surface 400 and the medium on the side facing the back cover surface 500 are the same medium, that is, Figure 3 The dielectrics filled in the first filling area 310 and the second filling area 320 are the same, and the dielectric constant of the dielectric on the side of the frame antenna facing the display end surface 400 is equal to the dielectric constant of the dielectric on the side facing the back cover surface 500. Figure 3 The frame antenna shown is used as a comparison case. Figure 2 and Figure 3 The frame antenna shown is simulated. Figure 8 Showing the free state Figure 3 The comparative cases and Figure 2 The electric field distribution comparison of the embodiment shown is at 1.8 GHz within the MHB frequency band. Figure 8 (a) is a schematic diagram of the simulation results of the comparative case. Figure 8 (b) For this application Figure 2 The simulation results of the embodiment shown are shown in FIG. Figure 8 (a) As you can see, there is no special design Figure 3 In the comparison case shown, the radiated electric field on both sides of the display end surface 400 and the back cover surface 500 is almost the same. When a person's hand approaches the back cover surface 500 and holds the electronic device, the radiated electric field of the back cover surface 500 will be greatly affected, and the efficiency will be significantly reduced. Figure 8 (b) Due to the pull of the input energy by the first filler region 310 with a high equivalent dielectric constant, the radiated electric field in region A on the display end face 400 accounts for a significantly larger proportion. Therefore, when a hand approaches, the impact on the MHB antenna is reduced, thereby minimizing the head-hand derating effect.

[0038] In addition, compared Figure 8 (a) and Figure 8 (b) It can be seen that after energy traction, Figure 2 The field distribution hot spots in the illustrated embodiment are more dispersed. Figure 3 In the comparison case shown, the largest surface of the SAR was originally the bottom surface. Figure 2 The illustrated embodiment can draw part of the energy to the display end surface 400 side, so that the energy of the bottom surface is reduced, thereby achieving a SAR reduction effect.

[0039] In addition, the embodiments of the present application also Figure 3 The comparison cases shown and Figure 2 The embodiment shown in the figure is simulated and compared, see Table 1 below. Figure 3 The comparison cases shown and Figure 2 The head-hand derating comparison of the embodiment shown, wherein the 1.8GHz efficiency in the B3 band of the MHB is selected as the fixed frequency comparison illustration Figure 2 The embodiment shown optimizes the head and hand derating. To illustrate the advantages of this solution, Figure 3 The dielectric constant of the medium in the comparative case shown is 3.4, Figure 2 In the embodiment shown, the equivalent dielectric constant of the medium filled in the first filling area 310 is ε2, and the equivalent dielectric constant of the medium filled in the second filling area 320 is ε1, and ε1:ε2=3.4:20 is selected for comparison. From the comparison of the electronic device in the free state in Table 1, it can be seen that in Figure 2The free efficiency of the embodiment shown is lower than Figure 3 In the comparison case shown, due to the pulling of the input energy toward the display end face 400, the impact of the human hand in the head-hand scene is greatly reduced. While the left head-hand scene is almost the same, the performance of the right head-hand scene is improved by nearly 3dB. Figure 2 The left head and hand scenario derating of the embodiment shown is compared with Figure 3 The comparison case shown has a gain of 2dB, the right head-hand scenario has a derated gain of 4.7dB, and the average derated gain is 3.4dB. Figure 2 The head-hand performance of the embodiment shown is significantly better than Figure 3 The comparison case shown will significantly improve the head-hand performance indicators and the actual user experience. The free state can refer to the state where the electronic device is not held, for example, when it is placed flat on a table. The head-hand scenario can refer to a scenario where the user holds the electronic device close to the head. The left-head-hand scenario refers to a scenario where the user holds the electronic device close to the head with their left hand, and the right-head-hand scenario refers to a scenario where the user holds the electronic device close to the head with their right hand.

[0040] Table 1:

[0041]

[0042] In this embodiment, during the signal radiation process of the radiator, when the dielectric constants of the media on both sides of the radiator are different, the radiation electric field generated by the radiator will migrate toward the side with a higher dielectric constant. Based on this, in an embodiment of the present application, by making the dielectric constant of the medium filled in the first filling area 310 greater than the dielectric constant of the medium filled in the second filling area 320, or making the equivalent dielectric constant of the medium filled in the first filling area 310 greater than the equivalent dielectric constant of the medium filled in the second filling area 320, during the operation of the radiator, the radiation electric field will migrate toward the side of the first filling area 310, and the first filling area 310 is located between the second filling area 320 and the display end surface 400 of the electronic device, that is, the first filling area 310 is the area in the medium filling area 300 close to the display end surface 400. Therefore, during the operation of the radiator, the radiation electric field will migrate toward the side of the display end surface 400, and the proportion of the radiation electric field on the side of the back cover 500 of the electronic device is reduced, that is, when the user holds the electronic device from the side of the back cover 500, the proportion of the radiation electric field toward the side of the human hand can be reduced, which is beneficial to reduce the influence of the human hand on the antenna, and thus improve the antenna performance.

[0043] Alternatively, see Figure 2The medium filled in the first filling area 310 is a first medium 700, and the medium filled in the second filling area 320 is a second medium 800. The first medium 700 and the second medium 800 are different media, and the dielectric constant of the first medium 700 is greater than the dielectric constant of the second medium 800.

[0044] The first medium 700 and the second medium 800 may be various insulating media commonly used to fill gaps in the frame of electronic devices, for example, various plastics or other polymer materials.

[0045] The dielectric constant of the first medium 700 can be greater than the dielectric constant of the second medium 800 according to actual needs. For example, in some embodiments of the present application, the dielectric constant of the first medium 700 is 30, and the dielectric constant of the second medium 800 is 3.4. For another example, in some embodiments of the present application, the dielectric constant of the first medium 700 is 28, and the dielectric constant of the second medium 800 is 3.4.

[0046] In this embodiment, the medium filled in the first filling area 310 is the first medium 700, and the medium filled in the second filling area 320 is the second medium 800. The first medium 700 and the second medium 800 are different media, and the dielectric constant of the first medium 700 is greater than the dielectric constant of the second medium 800. In this way, the equivalent dielectric constant of the medium filled in the first filling area 310 can be greater than the equivalent dielectric constant of the medium filled in the second filling area 320.

[0047] Optionally, the medium filled in the first filling area 310 is the third medium 900 , the medium filled in the second filling area 320 is the fourth medium 1100 , and the third medium 900 and the fourth medium 1100 are the same medium;

[0048] The third medium 900 is provided with a plurality of first through holes 140, and the fourth medium 1100 is provided with a plurality of second through holes 150. The sum of the volumes of the plurality of first through holes 140 is smaller than the sum of the volumes of the plurality of second through holes 150, so that the equivalent dielectric constant of the medium filled in the first filling area 310 is greater than the equivalent dielectric constant of the medium filled in the second filling area 320.

[0049] It can be understood that since the third medium 900 and the fourth medium 1100 are the same medium, that is, the first filling area 310 and the second filling area 320 are filled with the same medium, the dielectric constant of the third medium 900 is the same as the dielectric constant of the fourth medium 1100.

[0050] The first through holes 140 form a hollow area in the first filling area 310, and correspondingly, the second through holes 150 form a hollow area in the second filling area 320. The hollow area is not filled with any medium, that is, the dielectric constant of the hollow area is the dielectric constant of air.

[0051] The dielectric constant of the air within the first through-holes 140 is less than the dielectric constant of the third medium 900. Accordingly, the dielectric constant of the air within the second through-holes 150 is less than the dielectric constant of the fourth medium 1100. The equivalent dielectric constant of the medium filled in the first filling region 310 can be adjusted by changing the number and / or diameter of the first through-holes 140. Accordingly, the equivalent dielectric constant of the medium filled in the second filling region 320 can be adjusted by changing the number and / or diameter of the second through-holes 150. In this way, the equivalent dielectric constants of the medium filled in the first filling region 310 and the equivalent dielectric constants of the medium filled in the second filling region 320 can be adjusted to a predetermined ratio, such that the equivalent dielectric constant of the medium filled in the first filling region 310 is greater than the equivalent dielectric constant of the medium filled in the second filling region 320.

[0052] In this embodiment, since the dielectric constant of the third medium 900 is the same as the dielectric constant of the fourth medium 1100, the larger the volume of the hollowed-out area in the first filling region 310 and the second filling region 320, the smaller the equivalent dielectric constant of the corresponding area is generally. In this embodiment of the present application, by making the sum of the volumes of the plurality of first through-holes 140 smaller than the sum of the volumes of the plurality of second through-holes 150, that is, the volume of the hollowed-out area in the first filling region 310 is smaller than the volume of the hollowed-out area in the second filling region 320, this facilitates achieving an equivalent dielectric constant of the medium filled in the first filling region 310 greater than the equivalent dielectric constant of the medium filled in the second filling region 320.

[0053] Alternatively, see Figure 4 The number of the first through holes 140 in the third medium 900 is less than the number of the second through holes 150 in the fourth medium 1100, and the aperture of the first through holes 140 is equal to the aperture of the second through holes 150, so that the equivalent dielectric constant of the medium filled in the first filling area 310 is greater than the equivalent dielectric constant of the medium filled in the second filling area 320.

[0054] See Figure 4 In some embodiments of the present application, a plurality of first through holes 140 and a plurality of second through holes 150 can be set by punching in a sparse and dense gradient manner. Specifically, the closer to the display end surface 400, the fewer the number of punchings, and the closer to the back cover surface 500, the more the number of punchings.

[0055] In some embodiments of the present application, the depth of the first through-hole 140 can be equal to the depth of the second through-hole 150. Thus, the volume of the hollow area within a first through-hole 140 can be equal to the volume of the hollow area within a second through-hole 150. Since the number of first through-holes 140 in the third medium 900 is less than the number of second through-holes 150 in the fourth medium 1100, the sum of the volumes of the first through-holes 140 can be less than the sum of the volumes of the second through-holes 150.

[0056] Among them, see Figure 4 The fact that the number of the first through holes 140 in the third medium 900 is less than the number of the second through holes 150 in the fourth medium 1100 may mean that the density of the first through holes 140 in the third medium 900 is less than the density of the second through holes 150 in the fourth medium 1100 .

[0057] In this embodiment, by making the number of first through holes 140 in the third medium 900 less than the number of second through holes 150 in the fourth medium 1100, and the aperture of the first through holes 140 is equal to the aperture of the second through holes 150, it is beneficial to achieve that the sum of the volumes of the plurality of first through holes 140 is less than the sum of the volumes of the plurality of second through holes 150, and further facilitates that the equivalent dielectric constant of the medium filled in the first filling area 310 is greater than the equivalent dielectric constant of the medium filled in the second filling area 320.

[0058] Alternatively, see Figure 5 The number of the first through holes 140 in the third medium 900 is equal to the number of the second through holes 150 in the fourth medium 1100, and the aperture of the first through holes 140 is smaller than the aperture of the second through holes 150, so that the equivalent dielectric constant of the medium filled in the first filling area 310 is greater than the equivalent dielectric constant of the medium filled in the second filling area 320.

[0059] The aperture of the first through hole 140 being smaller than the aperture of the second through hole 150 may mean that the aperture of any first through hole 140 is smaller than the aperture of any second through hole 150. The apertures of different first through holes 140 and second through holes 150 may be different.

[0060] See Figure 5 In some embodiments of the present application, the aperture of the hole punched closer to the display end surface 400 can be smaller, and the aperture of the hole punched closer to the back cover surface 500 can be larger.

[0061] See Figure 5In some embodiments of the present application, the depth of the first through-hole 140 may be equal to the depth of the second through-hole 150. Since the number of the first through-holes 140 in the third medium 900 is equal to the number of the second through-holes 150 in the fourth medium 1100, and the aperture of the first through-hole 140 is smaller than the aperture of the second through-hole 150, the sum of the volumes of the plurality of first through-holes 140 can be smaller than the sum of the volumes of the plurality of second through-holes 150.

[0062] In this embodiment, by making the number of first through holes 140 in the third medium 900 equal to the number of second through holes 150 in the fourth medium 1100, and the aperture of the first through holes 140 is smaller than the aperture of the second through holes 150, it is beneficial to achieve that the sum of the volumes of the plurality of first through holes 140 is smaller than the sum of the volumes of the plurality of second through holes 150, and further facilitates that the equivalent dielectric constant of the medium filled in the first filling area 310 is greater than the equivalent dielectric constant of the medium filled in the second filling area 320.

[0063] Optionally, the volume of the first filling area 310 is equal to the volume of the second filling area 320 .

[0064] In this embodiment, since the volume of the first filling area 310 is equal to the volume of the second filling area 320, the relative size of the dielectric constants of the first filling area 310 and the second filling area 320 can be conveniently adjusted by setting media with different dielectric constants, or by setting through holes in the media.

[0065] Alternatively, see Figure 6 The electronic device further includes a second radiator 611, wherein the length direction of the first radiator 130 is the same as the length direction of the second radiator 611, the length of the first radiator 130 is greater than the length of the second radiator 611, two ends of the second radiator 611 are respectively opposite to the first radiator 130, and there is a gap between the first radiator 130 and the second radiator 611, and the second radiator 611 is coupled to the first radiator 130 through the gap;

[0066] The electronic device further includes a back cover surface 500 opposite to the display end surface 400 , and a distance between the second radiator 611 and the display end surface 400 is smaller than a distance between the second radiator 611 and the back cover surface 500 .

[0067] The distance between the second radiator 611 and the display end surface 400 being less than the distance between the second radiator 611 and the back cover surface 500 may mean that the second radiator 611 is close to the display end surface 400. For example, the second radiator 611 may be a wire separated from the display module 600 in the electronic device or a metal radiator.

[0068] See Figure 9 , for Figure 7 The embodiment shown is a schematic diagram of the electric field distribution obtained by simulation at 1.8 GHz within the MHB frequency band in a free state, wherein: Figure 7 The embodiment shown is Figure 2 The embodiment shown in the figure is formed by adding the second radiator 611. Figure 9 It can be seen that due to the pulling effect of the first radiator 130 on the input energy at the display end surface 400, the radiation electric field of the area A on the side of the display end surface 400 is relatively Figure 8 (b) has a significantly larger proportion. Therefore, when a hand approaches, the impact on the MHB antenna is reduced, thereby reducing the head-hand derating.

[0069] It should be noted that in Figure 7 In the embodiment shown, if the medium filled in the first filling area 310 and the medium filled in the second filling area 320 are the same medium, the near-field energy pulling effect of the second radiator 611 can also achieve the optimization of the head-hand derating, but the degree of optimization is less than Figure 7 The embodiment shown.

[0070] In this embodiment, since the length direction of the first radiator 130 is the same as the length direction of the second radiator 611, the length of the first radiator 130 is greater than the length of the second radiator 611, and both ends of the second radiator 611 are opposite to the first radiator 130 respectively. There is a gap between the first radiator 130 and the second radiator 611, and the second radiator 611 is coupled to the first radiator 130 through the gap. Therefore, the second radiator 611 can act like a director in a Yagi antenna, thereby pulling the main radiation direction of the first radiator 130 toward the second radiator 611. Since the second radiator 611 is close to the display end surface 400, the main radiation direction of the first radiator 130 can be pulled toward the display end surface 400, which is beneficial to increasing the radiation ratio on the display end surface 400 side, thereby reducing the impact of the human hand on the MHB antenna in the head-hand mode, and further reducing the antenna derating in the head-hand mode.

[0071] Optionally, the length of the second radiator 611 is greater than 0.8 times the length of the first radiator 130 .

[0072] The length d2 of the second radiator 611 and the length d1 of the first radiator 130 need to satisfy the following relationship: d1>d2>0.8d1.

[0073] In this embodiment, by making the length of the second radiator 611 greater than 0.8 times the length of the first radiator 130 , the second radiator 611 can function as a director during signal radiation by the first radiator 130 .

[0074] Optionally, the electronic device includes a display module 600, the display module 600 includes a conductive layer 610, the conductive layer 610 includes the second radiator 611, and the conductive layer 610 is provided with an isolation groove 613 arranged around the second radiator 611 to relatively separate the second radiator 611 from other areas 612 in the conductive layer 610 except the second radiator 611.

[0075] The conductive layer 610 may be any functional layer with a conductive function in the display module 600. For example, in some embodiments of the present application, the conductive layer 610 may be the screen copper foil of the display module 600, wherein the screen copper foil is located on the side of the display module 600 facing the mainboard cover, that is, the screen copper foil is located on the layer of the display module 600 farthest from the display end surface 400, and the screen copper foil is used to isolate the mainboard cover from the screen. For another example, in other embodiments of the present application, a slit may be performed on the display module 600 near the first radiator 130 to form a suspended trace in the display module 600 that pulls near-field energy. The suspended trace is the second radiator 611, and the slit is the isolation groove 613. In this way, the suspended trace can better ensure the integrity of the display module 600 while achieving near-field pulling.

[0076] See Figure 6 The second radiator 611 is located at the edge of the conductive layer 610 facing the first radiator 130. By opening the isolation groove 613 around the area where the second radiator 611 is located, the conductive layer 610 can be separated into two parts, wherein the two parts are: the second radiator 611 and other areas 612 except the second radiator 611.

[0077] In some embodiments of the present application, an insulating medium can be filled in the isolation groove 613, and the second radiator 611 can be fixedly connected to other areas 612 of the conductive layer 610 through the medium filled in the isolation groove 613, so that the second radiator 611 can form the suspended trace.

[0078] In other embodiments of the present application, the second radiator 611 and the other area 612 can also be respectively adhered to the surface of a structural layer adjacent to the conductive layer 610 in the display module 600, so as to keep the positions of the second radiator 611 and the other area 612 relatively fixed, so that the second radiator 611 can form the suspended trace.

[0079] In this embodiment, an isolation groove 613 is opened in the conductive layer 610 and arranged around the second radiator 611 to relatively separate the second radiator 611 from other areas 612 in the conductive layer 610 except the second radiator 611, thereby forming the above-mentioned second radiator 611 near the first radiator 130, so that the second radiator 611 can pull the main radiation direction of the first radiator 130 toward the display end surface 400.

[0080] Optionally, the first radiator 130 is located at the bottom frame of the frame 100 .

[0081] Among them, the bottom frame of the frame 100 can be a frame opposite to the top frame of the frame 100. The bottom frame is usually the frame where the charging interface is set in the electronic device, and the top frame is usually the frame of the frame 100 close to the earpiece.

[0082] It is understandable that the first radiator 130 and the charging interface in the frame 100 may be provided in the same frame of the frame 100 . For example, the first radiator 130 may be located in a vicinity of the charging interface.

[0083] In this embodiment, the first radiator 130 is located at the bottom frame of the frame 100 , which is beneficial for improving the antenna performance of the antenna corresponding to the first radiator 130 located at the bottom frame.

[0084] In other embodiments of the present application, the medium filled with the first filling area 310 is the third medium 900, and the medium filled with the second filling area 320 is the fourth medium 1100. The third medium 900 and the fourth medium 1100 are the same medium. The surface of the third medium 900 is provided with a first coating, and the surface of the fourth medium 1100 is provided with a second coating. The dielectric constant of the first coating is greater than the dielectric constant of the second coating. In this way, the equivalent dielectric constant of the medium filled with the first filling area 310 can also be greater than the equivalent dielectric constant of the medium filled with the second filling area 320.

[0085] In other embodiments of the present application, when the electronic device includes a protective case, the second radiator 611 may be disposed in the bottom frame of the protective case to achieve near-field energy traction.

[0086] 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 invention comprises a frame, wherein the frame is provided with a first break and a second break, a first radiator is provided between the first break and the second break, and the first radiator includes a feeding point and a grounding point; The frame includes a dielectric filling area arranged around the first radiator, the dielectric filling area includes a first filling area and a second filling area stacked along the thickness direction of the electronic device, and the first filling area is located between the second filling area and the display end surface of the electronic device; The dielectric constant of the medium filled in the first filling area is greater than the dielectric constant of the medium filled in the second filling area, or the equivalent dielectric constant of the medium filled in the first filling area is greater than the equivalent dielectric constant of the medium filled in the second filling area.

2. The electronic device according to claim 1, wherein The medium filled in the first filling area is a first medium, the medium filled in the second filling area is a second medium, the first medium and the second medium are different mediums, and the dielectric constant of the first medium is greater than the dielectric constant of the second medium.

3. The electronic device according to claim 1, wherein The medium filled in the first filling area is a third medium, the medium filled in the second filling area is a fourth medium, and the third medium and the fourth medium are the same medium; The third medium is provided with a plurality of first through holes, the fourth medium is provided with a plurality of second through holes, and the sum of the volumes of the plurality of first through holes is smaller than the sum of the volumes of the plurality of second through holes.

4. The electronic device according to claim 3, wherein: The number of the first through holes in the third medium is less than the number of the second through holes in the fourth medium, and the aperture of the first through holes is equal to the aperture of the second through holes.

5. The electronic device according to claim 3, wherein: The number of the first through holes in the third medium is equal to the number of the second through holes in the fourth medium, and the aperture of the first through holes is smaller than the aperture of the second through holes.

6. The electronic device according to any one of claims 1 to 5, characterized in that: The volume of the first filling area is equal to the volume of the second filling area.

7. The electronic device according to any one of claims 1 to 5, characterized in that: The electronic device further includes a second radiator, wherein the length direction of the first radiator is the same as the length direction of the second radiator, the length of the first radiator is greater than the length of the second radiator, two ends of the second radiator are respectively opposite to the first radiator, and a gap is formed between the first radiator and the second radiator, and the second radiator is coupled to the first radiator through the gap; The electronic device further includes a rear cover surface opposite to the display end surface, and a distance between the second radiator and the display end surface is smaller than a distance between the second radiator and the rear cover surface.

8. The electronic device according to claim 7, wherein: The length of the second radiator is greater than 0.8 times the length of the first radiator.

9. The electronic device according to claim 7, wherein: The electronic device includes a display module, the display module includes a conductive layer, the conductive layer includes the second radiator, and the conductive layer is provided with an isolation groove arranged around the second radiator to relatively separate the second radiator from other areas of the conductive layer except the second radiator.

10. The electronic device according to claim 1, wherein The first radiator is located at the bottom frame of the frame.

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