An electronic device

Abstract

The application discloses an electronic device, comprising: a first antenna radiator, a first insulating medium and a second insulating medium; the first antenna radiator is arranged along a first side edge and a second side edge of the electronic device, and is used for covering a first frequency band; wherein the first side edge and the second side edge are arranged adjacently; the first insulating medium covers a first part of the first antenna radiator, and the second insulating medium covers a second part of the first antenna radiator; wherein a dielectric constant of the first insulating medium is smaller than a dielectric constant of the second insulating medium, and the first part and the second part are different parts on the first antenna radiator.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic products, and in particular to an electronic device. BACKGROUND

[0002] With the continuous development of communication technology, the number of antenna frequency bands is also increasing, so more antennas need to be deployed in electronic devices to support more frequency bands. In order to ensure the performance of the antennas, some antennas need to be designed at specific positions of the electronic device, such as being arranged at the top (such as the side where the earpiece, front camera and the like are located), so as to ensure that the antennas have good upper hemisphere efficiency, such as the Global Positioning System (GPS) frequency band, the Medium High Band (MHB), the Near Field Communication (NFC) frequency band, the wireless network (WIFI) frequency band, the n78 frequency band and the like. Due to the limited space of the electronic device, when the number of deployed antenna frequency bands is large, especially when a large number of antennas need to be arranged at the same specific position, there may be mutual interference between different frequency band antennas, or mutual interference between the antennas and the front camera acoustic cavity and the like, which increases the difficulty of isolation and increases the matching loss caused by the isolation circuit. Therefore, the current antenna design in the electronic device has the problem that the performance of the antennas at the specific position and the requirement of ensuring the isolation degree cannot be compatible. SUMMARY

[0003] The embodiments of the present application provide an electronic device to solve the problem that the current antenna design in the electronic device cannot be compatible with the performance of the antennas at the specific position and the requirement of ensuring the isolation degree.

[0004] In order to solve the above technical problems, the present application is implemented as follows:

[0005] The embodiments of the present application provide an electronic device, comprising: a first antenna radiator, a first insulating medium and a second insulating medium.

[0006] The first antenna radiator is arranged along a first side edge and a second side edge of the electronic device, and is used to cover a first frequency band; wherein the first side edge and the second side edge are arranged adjacently.

[0007] The first insulating medium covers a first part of the first antenna radiator, and the second insulating medium covers a second part of the first antenna radiator; wherein the dielectric constant of the first insulating medium is smaller than the dielectric constant of the second insulating medium, and the first part and the second part are different parts on the first antenna radiator.

[0008] In this way, in the above scheme of the present application, by setting the first insulating medium with a lower dielectric constant to cover the first part of the first antenna radiator, and setting the second insulating medium with a higher dielectric constant to cover the second part of the first antenna radiator, the electromagnetic wave of the first antenna radiator can be deviated to the first side edge of the first electronic device where the first part is located and radiated from the medium to the air, that is, the efficiency of the first frequency band covered by the first antenna radiator at the first side edge is ensured. Moreover, the second part of the first antenna radiator is arranged at the second side edge of the first antenna device, which avoids the space occupation of the first side edge of the first electronic device, reduces the mutual interference between the antenna arranged on the first side edge and the first antenna, and meets the isolation requirement. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 A schematic diagram of an electronic device according to an embodiment of the present application;

[0010] Figure 2 A schematic diagram of wave impedance principle according to an embodiment of the present application;

[0011] Figure 3A A schematic diagram of an antenna radiation pattern according to an embodiment of the present application;

[0012] Figure 3B A schematic diagram of an antenna radiation pattern according to an embodiment of the present application;

[0013] Figure 3C A schematic diagram of an antenna radiation pattern according to an embodiment of the present application;

[0014] Figure 4 A schematic diagram of an electronic device according to an embodiment of the present application;

[0015] Figure 5 A schematic diagram of an antenna radiation pattern according to an embodiment of the present application;

[0016] Figure 6 A schematic diagram of an electronic device according to an embodiment of the present application;

[0017] Figure 7 A schematic diagram of an electronic device according to an embodiment of the present application; DETAILED DESCRIPTION

[0018] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

[0019] AsFigure 1 As shown in the embodiments of the present application, an electronic device is provided, comprising: a first antenna radiator 10, a first insulating medium 11 and a second insulating medium 12;

[0020] The first antenna radiator 10 is arranged along a first side edge and a second side edge of the electronic device, and is used for covering a first frequency band; wherein the first side edge and the second side edge are arranged adjacently.

[0021] The first insulating medium 11 covers a first part of the first antenna radiator 10, and the second insulating medium 12 covers a second part of the first antenna radiator 10; wherein the dielectric constant of the first insulating medium 11 is less than the dielectric constant of the second insulating medium 12, and the first part and the second part are different parts on the first antenna radiator 10.

[0022] For example, the first antenna radiator 10 is used as a carrier of electromagnetic wave energy for covering the first frequency band.

[0023] Optionally, the first antenna radiator 10 is provided with a bending part, the radiator between the bending part and the first end of the first antenna radiator 10 is located at the first side edge of the electronic device, and the radiator between the bending part and the second end of the first antenna radiator 10 is located at the second side edge of the electronic device. Optionally, the first side edge can be the top side edge of the electronic device, that is, the first side edge is located at the top of the electronic device, and the second side edge is the side edge adjacent to the top side edge.

[0024] Optionally, the first part can be the radiator between the bending part and the first end of the first antenna radiator 10, and the second part can be the radiator between the bending part and the second end of the first antenna radiator 10; or the first part can include the radiator between the bending part and the first end of the first antenna radiator 10 and part of the radiator between the bending part and the second end of the first antenna radiator 10, and the second part can include the other part of the radiator between the bending part and the second end of the first antenna radiator 10, and the embodiments of the present application are not limited thereto.

[0025] As shown in the embodiments of the present application, the antenna radiator 1 is in the insulating medium 2, that is, the insulating medium 2 covers the antenna radiator 1. The calculation formula of wave impedance is as follows: Figure 2

[0026]

[0027] Wherein, z is the wave impedance, E is the electric field intensity, H is the magnetic field intensity, u is the magnetic permeability, and ε is the dielectric constant. ​

[0028] Based on the above formula for calculating the wave impedance, the wave impedance in air can be calculated as 376.7 ohms (the dielectric constant of air is 1.0006, close to the dielectric constant of vacuum, about 1). Since the wave impedance z in the medium and the dielectric constant ε are inversely proportional, the greater the dielectric constant ε, the smaller the wave impedance z in the medium, and the greater the difference from the wave impedance in air. Correspondingly, it is more difficult for electromagnetic waves to radiate from the medium to the air, which means that the medium with high dielectric constant has stronger binding ability to electromagnetic waves. Conversely, the wave impedance of the medium with low dielectric constant is closer to the wave impedance in air, which is more conducive to the radiation of electromagnetic waves from the medium to the air.

[0029] In this way, in the embodiment of the present application, by setting the first insulating medium 11 with a lower dielectric constant to cover the first part of the first antenna radiator 10 and setting the second insulating medium 12 with a higher dielectric constant to cover the second part of the first antenna radiator 10, the electromagnetic waves of the first antenna radiator 10 can be made to radiate from the medium to the air from the first side edge of the first electronic device where the first part is located. For example, the first side edge is located at the top of the electronic device, which ensures the upper hemisphere efficiency of the first frequency band covered by the first antenna radiator 10. Moreover, the second part of the first antenna radiator 10 is arranged at the second side edge of the first antenna device, which avoids occupying the space of the first side edge of the first electronic device, reduces the mutual interference between antennas and the mutual interference between the antenna and the front camera sound cavity and other devices, meets the isolation requirement, and also avoids the increase of matching loss caused by the increase of isolation circuit, solving the problem that the antenna design in the current electronic device cannot meet the performance of the antenna in a specific position and cannot guarantee the isolation requirement.

[0030] For example, as shown in Figure 3A , the antenna radiation direction diagram is given when the dielectric constants of the first insulating medium 11 and the second insulating medium 12 are different, for example, the dielectric constant of the first insulating medium 11 is 1 and the dielectric constant of the second insulating medium 12 is 6. As shown in Figure 3B , the antenna radiation direction diagram is given when the dielectric constants of the first insulating medium 11 and the second insulating medium 12 are the same, for example, the dielectric constants of the first insulating medium 11 and the second insulating medium 12 are both 3. It can be seen that when the dielectric constants of the first insulating medium 11 and the second insulating medium 12 are different and the difference is large, the antenna radiation direction diagram is obviously biased to the top.

[0031] Comparing the antenna radiation direction diagrams in Figure 3A and Figure 3B , as shown in Figure 3CAs shown, it can be seen that the upper hemisphere efficiency is 51% when the dielectric constant of the first insulating medium 11 and the second insulating medium 12 is 3, and the upper hemisphere efficiency is 66% when the dielectric constant of the first insulating medium 11 is 1 and the dielectric constant of the second insulating medium 12 is 6, that is, in the scheme of the present application, because the first insulating medium 11 with low dielectric constant is closer to the air wave impedance than the second insulating medium 12 with high dielectric constant, it is more conducive to the electromagnetic wave radiating from the medium to the air, meets the upper hemisphere efficiency requirement, and reduces the top space occupation of the electronic device, reduces the mutual interference between the antennas, and the mutual interference between the antennas and the front camera sound cavity and other devices, and meets the isolation requirement.

[0032] It should be noted that the first insulating medium 11 in the embodiments of the present application refers to the overall dielectric constant (or equivalent dielectric constant) of the first insulating medium 11. Similarly, the dielectric constant of the second insulating medium 12 refers to the overall dielectric constant (or equivalent dielectric constant) of the second insulating medium 12. For example, if the first insulating medium 11 or the second insulating medium 12 is made of a single insulating material, the equivalent dielectric constant of the first insulating medium 11 or the second insulating medium 12 is determined by the dielectric constant of the insulating material and the structural characteristics of the first insulating medium 11 or the second insulating medium 12; if the first insulating medium 11 or the second insulating medium 12 is made of multiple insulating materials, the equivalent dielectric constant of the first insulating medium 11 or the second insulating medium 12 is determined by the dielectric constants of the multiple insulating materials, and the embodiments of the present application are not limited thereto.

[0033] Optionally, as shown in Figure 4 The first insulating medium 11 is made of a first insulating material, and the second insulating medium 12 is made of a second insulating material; wherein the dielectric constant of the first insulating material is less than the dielectric constant of the second insulating material.

[0034] For example: based on injection molding or filling or spraying process, the first insulating material is used to prepare the first insulating medium 11 on the surface of the first part of the first antenna radiator 10, and the second insulating material is used to prepare the second insulating medium 12 on the surface of the second part of the first antenna radiator 10, that is, the equivalent dielectric constant of the first insulating medium 11 can be considered as the dielectric constant of the first insulating material, and the equivalent dielectric constant of the second insulating medium 12 can be considered as the dielectric constant of the second insulating material. In this way, by selecting the dielectric constant of the first insulating material to be less than the dielectric constant of the second insulating material, the dielectric constant of the first insulating medium 11 can be less than the dielectric constant of the second insulating medium 12, and the efficiency of the first frequency band covered by the first antenna radiator 10 on the first side of the electronic device is ensured.

[0035] Optionally, the first antenna radiator 10 is provided with a first grounding point 101 and a first feeding point 102; the distance from the first grounding point 101 to the first end of the first antenna radiator 10 is less than the distance from the first feeding point 102 to the first end; wherein the first part is the radiator of the first antenna radiator 10 between the first feeding point 102 and the first end, and the first side is located at the top of the electronic device.

[0036] Optionally, the second part can be the part of the first antenna radiator 10 other than the first part, i.e. the second part is the radiator of the first antenna radiator 10 between the first feeding point 102 and the second end of the first antenna radiator 10. Wherein the first end and the second end are two ends of the first antenna radiator 10.

[0037] In this embodiment, the first part and the second part of the first antenna radiator 10 are divided based on the position of the first feeding point 102, which can ensure that the first frequency band covered by the first antenna radiator 10 has higher efficiency at the first side of the electronic device. Moreover, the first side is located at the top of the electronic device, i.e. the upper hemisphere efficiency of the first frequency band covered by the first antenna radiator 10 can be ensured.

[0038] As mentioned above, Figure 1 The part of the first antenna radiator 10 between the first grounding point 101 and the second end works in an inverted-F antenna (IFA) mode as the main radiator part covering the first frequency band, and the current distribution direction is A2. The part of the first antenna radiator 10 between the first grounding point 101 and the first end works in a monopole mode (such as a half-wave mode) as the auxiliary radiator part covering the first frequency band, and the current distribution direction is A1. In this way, the first antenna radiator 10 can work in a composite mode of the first frequency band, and the current distribution directions of the two modes are opposite, which can ensure the antenna performance of the first frequency band.

[0039] Optionally, the first feeding point 102 is arranged close to the first grounding point 101, i.e. the distance from the first feeding point 102 to the first grounding point 101 is less than the distance from the first feeding point 102 to the second end of the first antenna radiator 10, so as to better excite the IFA mode of the first frequency band.

[0040] Optionally, the first feeding point 102 is located on the first antenna radiator 10 at a position on a second side of the electronic device. As an implementation, the portion of the first antenna radiator 10 on the first side of the electronic device is arranged at a preset angle (which can be 90 degrees, for example, based on the shape of the electronic device) with the portion of the first antenna radiator 10 on the second side of the electronic device, that is, the bend of the first antenna radiator 10 can be 90 degrees (here, the shape of the bend can be a right angle or an arc).

[0041] Optionally, the electronic device further includes a metal ground 14, and the first grounding point 101 is connected to the metal ground 14 through a first capacitor 15.

[0042] For example, the metal ground 14 can be a main board in the electronic device and a large piece of integral metal connected thereto. The metal ground 14 forms an induced current with the antenna radiator and can serve as a reference ground of the antenna.

[0043] In this embodiment, the first grounding point 101 is connected to the metal ground 14 through the first capacitor 15, that is, the portion of the first antenna radiator 10 from the first grounding point 101 to the first end can be formed as a floating metal branch (or a floating radiator) and can be used for specific absorption ratio (SAR) detection. The SAR refers to the electromagnetic radiation energy absorbed by a unit of mass per unit of time.

[0044] Specifically, the first antenna radiator 10 is provided with a SAR sensor 103, and the distance from the connection position of the SAR sensor 103 to the first antenna radiator 10 to the first end is less than the distance from the first grounding point 101 to the first end. That is, the SAR sensor 103 is arranged on the floating metal branch (or the floating radiator) of the first antenna radiator 10 and is used for SAR value detection.

[0045] Optionally, the electronic device further includes a first feeding source 17, and the first feeding point 102 is connected to the first feeding source 17. For example, the first feeding source 17 can be arranged on a main board or other circuit board of the electronic device, and the present application is not limited thereto.

[0046] Optionally, the first frequency band is a GPS frequency band. For example, the GPS frequency band includes, but is not limited to, a GPS L1 frequency band, a GPS L5 frequency band, and the like. Optionally, the first frequency band can also be a WIFI frequency band, and the like, without being limited thereto.

[0047] Optionally, continuing to refer to Figure 4 , the electronic device further includes a second antenna radiator 13; wherein the second antenna radiator 13 is arranged along the first side edge of the electronic device, and the first antenna radiator 10 and the second antenna radiator 13 have a coupling interval 16 therebetween, and the first insulating medium 11 covers the second antenna radiator 13.

[0048] The second antenna radiator 13 and the third part of the first antenna radiator 10 are used to cover a second frequency band; wherein the third part is the radiator between the first grounding point 101 on the first antenna radiator 10 and the coupling interval 16.

[0049] For example, the coupling interval 16 between the first antenna radiator 10 and the second antenna radiator 13 can mean that the first part of the first antenna radiator 10 and the second antenna radiator 13 have a coupling interval 16 therebetween, or the first end of the first antenna radiator 10 and the first end of the second antenna radiator 13 have a coupling interval 16 therebetween. That is, the first antenna radiator 10 and the second antenna radiator 13 are not in contact, and can interact with each other through spatial electromagnetic field at a relatively close distance.

[0050] Optionally, the coupling interval 16 can also be a gap on the metal frame (or metal shell, or metal frame body) of the electronic device, for example, a gap is formed on the metal frame (or metal shell, or metal frame body) of the electronic device, the first antenna radiator 10 and the second antenna radiator 13 are formed on both sides of the gap, and the physical width of the gap is set so that the gap serves as the coupling interval 16 between the first antenna radiator 10 and the second antenna radiator 13. Optionally, the electronic device can also be provided with an acoustic cavity at the position of the gap (i.e., the coupling interval 16).

[0051] Optionally, the second antenna radiator 13 serves as a carrier of electromagnetic wave energy, and cooperates with the third part of the first antenna radiator 10 to cover the second frequency band.

[0052] Optionally, the second antenna radiator 13 is provided with a second grounding point 131 and a second feeding point 132, and the distance from the second grounding point 131 to the coupling interval 16 is greater than the distance from the second feeding point 132 to the coupling interval 16.

[0053] Optionally, the second grounding point 131 can be located at the second end of the second antenna radiator 13; the second grounding point 131 is connected to the metal ground 14. The first and second ends of the second antenna radiator 13 are positioned opposite to each other.

[0054] Optionally, the electronic device may further include a second feed source 18, with the second feed point 132 connected to the second feed source 18. For example, the second feed source 18 may be disposed on the motherboard or other circuit board of the electronic device, but this embodiment is not limited thereto.

[0055] In this embodiment, the second antenna radiator 13 is provided with a second feed point 132 for connecting to the second feed source 18. That is, the second antenna radiator 13 can serve as the main radiator portion covering the second frequency band, and the third portion of the first antenna radiator 10 (i.e., the portion of the radiator between the coupling interval 16 and the first grounding point 101) can serve as the auxiliary radiator portion covering the second frequency band, obtaining energy through coupling from the second antenna radiator 13. Thus, the entire assembly consisting of the second antenna radiator 13 and the third portion of the first antenna radiator 10 operates in half-wave mode, achieving coverage of the second frequency band. Furthermore, since the first grounding point 101 on the first antenna radiator 10 is grounded through the first capacitor 15, the impact of the first frequency band operation on the performance of the second frequency band can be reduced. The first insulating medium 11 is arranged to cover the second antenna radiator 13. Since the first insulating medium 11 with low dielectric constant is closer to the air wave impedance, it is more conducive to the electromagnetic waves of the second frequency band radiating from the medium into the air, thus satisfying the efficiency of the second frequency band on the first side of the electronic device (for example, if the first side is located on the top of the electronic device, the upper hemisphere efficiency of the second frequency band can be satisfied).

[0056] Optionally, the second frequency band is a mid-to-high frequency band. Of course, the second frequency band can also be other frequency bands that need to meet the upper hemisphere efficiency requirement, or other frequency bands set on the top side of the electronic device, etc. The embodiments of this application are not limited to this.

[0057] by Figure 4 Taking the electronic device shown as an example, such as Figure 5 As shown, when the dielectric constants of the first insulating medium 11 and the second insulating medium 12 are the same, for example, both are 3, the antenna radiation pattern is biased to the side (e.g.: Figure 5 The antenna radiation pattern is 51% in the upper hemisphere (between 0 and 90 degrees). When the dielectric constant of the first insulating medium 11 is adjusted to 4 and the dielectric constant of the second insulating medium 12 remains unchanged, the antenna radiation pattern is at the top of the electronic device (e.g., on the other hand). Figure 5The top part of the antenna radiation pattern is further strengthened, and the bottom part is greatly shrunk. When the dielectric constant of the first insulating medium 11 is adjusted to 6, and the dielectric constant of the second insulating medium 12 is adjusted to 2, the top part of the antenna radiation pattern of the electronic device is further strengthened, the bottom part is greatly shrunk, and the upper hemisphere radiation efficiency is increased to 75.7%.

[0058] Optionally, the electronic device further comprises a third antenna radiator 20, which can be co-located with the second antenna radiator 13. The third antenna radiator 20 is also provided with a third grounding point 201 and a third feeding point 202. The distance between the third grounding point 201 and the second antenna radiator 13 is less than the distance between the third feeding point 202 and the second antenna radiator 13. The third antenna radiator 20 can be used to cover a third frequency band, such as an NFC frequency band, or other frequency bands that need to meet the upper hemisphere efficiency, or other frequency bands arranged on the top side of the electronic device, etc., without limitation.

[0059] Optionally, the third grounding point 201 is connected to the metal ground 14 through a second capacitor 24. The third feeding point 202 is connected to a third feed source 22, such as a third feed source 22 arranged on the main board or other circuit board of the electronic device, without limitation.

[0060] Optionally, the electronic device further comprises a fourth antenna radiator 21, which has a coupling interval between the third antenna radiator 20. The fourth antenna radiator 21 is provided with a fourth grounding point 211 and a fourth feeding point 212. The distance between the fourth grounding point 211 and the coupling interval is greater than the distance between the fourth feeding point 212 and the coupling interval. The fourth antenna radiator 21 can be used to cover a fourth frequency band and a fifth frequency band, such as a WIFI frequency band, an n78 frequency band, or other frequency bands that need to meet the upper hemisphere efficiency, or other frequency bands arranged on the top side of the electronic device, etc., without limitation.

[0061] Optionally, the fourth grounding point 211 is connected to the metal ground 14. The fourth feeding point 212 is connected to a fourth feed source 23, such as a fourth feed source 23 arranged on the main board or other circuit board of the electronic device, without limitation.

[0062] Optionally, as shown in Figure 6 The first insulating medium 11 and the second insulating medium 12 are both made of a third insulating material; and the first insulating medium 11 is provided with a plurality of holes 112.

[0063] For example, the third insulating material can be used to prepare the insulating medium on the surface of the first antenna radiator 10 based on injection molding or filling or spraying process, and then the insulating medium part covering the first part of the surface of the first antenna radiator 10 is punched, that is, the hole 112 is formed on the insulating medium part covering the first part of the surface of the first antenna radiator 10, that is, the first insulating medium 11 covering the first part of the surface of the first antenna radiator 10 is obtained, and the insulating medium covering the second part of the surface of the first antenna radiator 10 is called the second insulating medium 12.

[0064] In this way, although the first insulating medium 11 and the second insulating medium 12 are both prepared by using the same third insulating material (that is, the dielectric constants of the insulating materials used are the same), because the first insulating medium 11 is provided with a plurality of holes 112, the equivalent dielectric constant of the first insulating medium 11 can be reduced, that is, the dielectric constant of the first insulating medium 11 is smaller than that of the second insulating medium 12.

[0065] Optionally, the size and shape of the hole actually provided on the first insulating medium 11 can be adjusted according to the debugging result, for example, the size and shape of the hole are adjusted through debugging test, so that the dielectric constant of the first insulating medium 11 is smaller than that of the second insulating medium 12, to ensure the efficiency of the first frequency band covered by the first antenna radiator 10 on the first side edge of the electronic device, and relative to the insulating medium with different dielectric constants covered on the first antenna radiator 10, the processing difficulty is reduced.

[0066] In this embodiment, the specific structure of the first antenna radiator 10 can be referred to the above-mentioned embodiments, in addition Figure 6 The electronic device shown can also include a second antenna radiator 13, a third antenna radiator 20, a fourth antenna radiator 21, and the like, and the specific structure can also be referred to the above-mentioned embodiments, to avoid repetition, which will not be described here.

[0067] Optionally, as Figure 7 The first insulating medium 11 includes a first main medium part 110 and a first coating layer 111, the first main medium part 110 covers the first part of the first antenna radiator 10, and the first coating layer 111 covers the surface of the first main medium part 110;

[0068] The second insulating medium 12 includes a second main medium part 120 and a second coating layer 121, the second main medium part 120 covers the second part of the first antenna radiator 10, and the second coating layer 121 covers the surface of the second main medium part 120;

[0069] The dielectric constant of the first main dielectric part 110 and the second main dielectric part 120 is the same, or the dielectric constant of the first main dielectric part 110 is smaller than the dielectric constant of the second main dielectric part 120; and the dielectric constant of the first coating layer 111 is smaller than the dielectric constant of the second coating layer 121.

[0070] For example, the first main dielectric part 110 and the second main dielectric part 120 are both made of the fourth insulating material, and the dielectric constant of the first coating layer 111 is smaller than the dielectric constant of the second coating layer 121.

[0071] For example, the first main dielectric part 110 and the second main dielectric part 120 are both made of the fourth insulating material, and the dielectric constant of the first coating layer 111 is smaller than the dielectric constant of the second coating layer 121.

[0072] In this embodiment, the specific structure of the first antenna radiator 10 can refer to the above-mentioned embodiments, in addition Figure 7 The electronic device shown can also include a second antenna radiator 13, a third antenna radiator 20, a fourth antenna radiator 21, etc. The specific structure can also refer to the above-mentioned embodiments, and to avoid repetition, it will not be described here.

[0073] Alternatively, considering the limited thickness of the paint, the effect of improving the efficiency of the first frequency band covered by the first antenna radiator 10 on the first side edge of the electronic device by spraying paint only is small, so the first main dielectric part 110 and the second main dielectric part 120 can be combined Figure 4 , Figure 6 and Figure 7 The structure design of the first insulating medium 11 and the second insulating medium 12 in the above-mentioned embodiments can be combined to better improve the efficiency of the first frequency band covered by the first antenna radiator 10 on the first side edge of the electronic device.

[0074] For example, the first insulating medium 11 is made of a first insulating material, and the second insulating medium 12 is made of a second insulating material; the first insulating material has a smaller dielectric constant than the second insulating material; and the first insulating medium 11 has a plurality of holes 112.

[0075] For another example, the first insulating medium 11 includes a first main medium part 110 and a first coating layer 111; the first main medium part 110 covers a first part of the first antenna radiator 10; and the first coating layer 111 covers a surface of the first main medium part 110.

[0076] The second insulating medium 12 includes a second main medium part 120 and a second coating layer 121; the second main medium part 120 covers a second part of the first antenna radiator 10; and the second coating layer 121 covers a surface of the second main medium part 120.

[0077] The first main medium part 110 is made of the first insulating material, and the second main medium part 120 is made of the second insulating material; the first insulating material has a smaller dielectric constant than the second insulating material (i.e., the first main medium part 110 has a smaller dielectric constant than the second main medium part 120); and the first coating layer 111 has a smaller dielectric constant than the second coating layer 121.

[0078] For another example, the first insulating medium 11 includes a first main medium part 110 and a first coating layer 111; the first main medium part 110 covers a first part of the first antenna radiator 10; and the first coating layer 111 covers a surface of the first main medium part 110.

[0079] The second insulating medium 12 includes a second main medium part 120 and a second coating layer 121; the second main medium part 120 covers a second part of the first antenna radiator 10; and the second coating layer 121 covers a surface of the second main medium part 120.

[0080] The first main medium part 110 and the second main medium part 120 are both made of a fourth insulating material (i.e., the first main medium part 110 and the second main medium part 120 have the same dielectric constant); the first main medium part 110 has a plurality of holes; and the first coating layer 111 has a smaller dielectric constant than the second coating layer 121.

[0081] For another example, the first insulating medium 11 comprises a first main medium part 110 and a first coating layer 111, the first main medium part 110 covers the first part of the first antenna radiator 10, and the first coating layer 111 covers the surface of the first main medium part 110.

[0082] The second insulating medium 12 comprises a second main medium part 120 and a second coating layer 121, the second main medium part 120 covers the second part of the first antenna radiator 10, and the second coating layer 121 covers the surface of the second main medium part 120.

[0083] The first main medium part 110 is made of a first insulating material, the second main medium part 120 is made of a second insulating material, the first main medium part 110 is provided with a plurality of holes, the dielectric constant of the first insulating material is less than the dielectric constant of the second insulating material (i.e. the dielectric constant of the first main medium part 110 is less than the dielectric constant of the second main medium part 120), and the dielectric constant of the first coating layer 111 is less than the dielectric constant of the second coating layer 121.

[0084] It should be noted that the electronic device in the embodiments of the present application includes but is not limited to a mobile phone, a tablet computer, a notebook computer, a smart watch or other electronic devices that need to deploy antennas. In addition, the antenna design in the above electronic device can not only improve the upper hemisphere efficiency of the GPS antenna while ensuring the isolation requirement, but also can be applied to other antenna designs that have requirements for antenna radiation patterns, such as improving the CDF of WIFI antenna, improving the beam direction of base station antenna, etc. The embodiments of the present application are not limited thereto.

[0085] Each of the embodiments in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same and similar parts between the embodiments can be referred to each other.

[0086] Although the preferred embodiments of the present application have been described, those skilled in the art can make other changes and modifications to the embodiments once they know the basic creative concept. Therefore, the appended claims are intended to include the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present application.

[0087] Finally, it needs to be pointed out that in this document, the relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between such entities or operations. Moreover, the terms "comprising", "containing", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or terminal device. Without more limitations, an element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0088] The above is the preferred embodiment of the present application, it should be pointed out that for the ordinary person in the art, without departing from the principles described in the present application can also be made several improvements and refinements, these improvements and refinements are also within the scope of the present application.

Claims

1. An electronic device, characterized in that, include: First antenna radiator, first insulating medium, and second insulating medium; The first antenna radiator is disposed along a first side and a second side of the electronic device, and the first antenna radiator is used to cover a first frequency band; wherein the first side and the second side are disposed adjacent to each other; The first insulating medium covers a first portion of the first antenna radiator, and the second insulating medium covers a second portion of the first antenna radiator; wherein the dielectric constant of the first insulating medium is less than the dielectric constant of the second insulating medium, and the first portion and the second portion are different portions of the first antenna radiator.

2. The electronic device according to claim 1, characterized in that, The first insulating medium has multiple holes.

3. The electronic device according to claim 1, characterized in that, The first insulating medium includes: a first main dielectric portion and a first coating, wherein the first main dielectric portion covers a first portion of the first antenna radiator, and the first coating covers the surface of the first main dielectric portion; The second insulating medium includes: a second main dielectric portion and a second coating, wherein the second main dielectric portion covers a second portion of the first antenna radiator, and the second coating covers the surface of the second main dielectric portion; Wherein, the dielectric constants of the first main dielectric portion and the second main dielectric portion are the same, or the dielectric constant of the first main dielectric portion is less than the dielectric constant of the second main dielectric portion; and the dielectric constant of the first coating is less than the dielectric constant of the second coating.

4. The electronic device according to claim 3, characterized in that, The first main medium section has multiple holes.

5. The electronic device according to any one of claims 1 to 4, characterized in that, The first antenna radiator is provided with a first grounding point and a first feed point; the distance from the first grounding point to the first end of the first antenna radiator is less than the distance from the first feed point to the first end; The first part is the radiator on the first antenna radiator from the first feed point to the first end, and the first side is located on the top of the electronic device.

6. The electronic device according to claim 5, characterized in that, The first feed point is located on the second side of the electronic device on the first antenna radiator.

7. The electronic device according to claim 5, characterized in that, Also includes: Metallic ground; among which, The first grounding point is connected to the metal ground through a first capacitor.

8. The electronic device according to claim 7, characterized in that, The first antenna radiator is equipped with a SAR sensor; Wherein, the distance from the connection point of the SAR sensor and the first antenna radiator to the first end is less than the distance from the first grounding point to the first end.

9. The electronic device according to any one of claims 1 to 4, characterized in that, Also includes: The second antenna radiator; among which... The second antenna radiator is disposed along the first side of the electronic device, and there is a coupling gap between the first antenna radiator and the second antenna radiator. The first insulating medium covers the second antenna radiator. The second antenna radiator and the third part of the first antenna radiator are used to cover the second frequency band; wherein, the third part is a radiator from the first grounding point on the first antenna radiator to the coupling interval.

10. The electronic device according to claim 9, characterized in that, The first frequency band is the GPS frequency band, and / or the second frequency band is the mid-to-high frequency band.

11. The electronic device according to claim 9, characterized in that, The second antenna radiator is provided with a second grounding point and a second feed point, and the distance from the second grounding point to the coupling interval is greater than the distance from the second feed point to the coupling interval.

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