Antenna and electronic equipment

Abstract

An embodiment of the present application discloses an antenna including a first radiating part, a second radiating part and a third radiating part, wherein the third radiating part is located between the first radiating part and the second radiating part, and the third radiating part includes a first part and a second part; and the width of the first part is equal to the width of the first radiating part.

Description

Technical Field

[0001] The embodiments of the present application relate to, but are not limited to, the field of antennas, and in particular to an antenna and an electronic device. Background Art

[0002] The Specific Absorption Rate (SAR) is a parameter that characterizes the amount of radiation an antenna causes to the human body. The larger the SAR value, the greater the radiation to the human body. Therefore, the antennas in electronic devices need to be designed to reduce the SAR value. Summary of the Invention

[0003] The antenna and electronic device provided in the embodiments of the present application can effectively reduce the SAR value of the antenna.

[0004] In a first aspect, an embodiment of the present application provides an antenna, comprising a radiator, the radiator comprising a first radiating part, a second radiating part and a third radiating part, the third radiating part being located between the first radiating part and the second radiating part, the third radiating part comprising a first part and a second part; and the width of the first part is equal to the width of the first radiating part.

[0005] The antenna provided in an embodiment of the present application includes a radiator for radiating electromagnetic waves, the radiator including a first radiating part and a second radiating part, and a third radiating part is arranged between the first radiating part and the second radiating part, the third radiating part including a first part and a second part, wherein the width of the first part is equal to the width of the first radiating part, that is, the radiator includes an additional second part. Due to the presence of the second part, the area of the radiator is increased, so that the current and voltage in the radiator can be more dispersed, thereby reducing the distribution of the current and voltage per unit area of the radiator, and the SAR value is related to the electric field strength per unit volume of the radiator. When the current and voltage per unit volume are dispersed, the corresponding electric field strength decreases accordingly, that is, the SAR value is reduced.

[0006] In a possible implementation of the present application, the antenna operates based on a target frequency band, and a current flow direction of the first radiation section is different from a current flow direction of the second radiation section.

[0007] In one possible implementation of the present application, the length of the radiator is related to the target frequency band; wherein, if the length of the radiator is 1 / 2 wavelength of the target frequency band, the position of the third radiating part corresponds to 1 / 4 wavelength of the target frequency band; if the length of the radiator is the wavelength of the target frequency band, the position of the third radiating part corresponds to 1 / 4 wavelength of the target frequency band, or, the position of the third radiating part corresponds to 3 / 4 wavelength of the target frequency band.

[0008] In a possible implementation of the present application, the shape of the second portion includes any one of the following: stepped, trapezoidal, triangular, rectangular, and semicircular.

[0009] In one possible implementation of the present application, the first end of the radiator is connected to the ground through a first inductor, and the second end of the radiator is connected to the ground through a second inductor. The inductance value of the first inductor is different from the inductance value of the second inductor, so that the first radiating part and the second radiating part are symmetrical relative to the third radiating part.

[0010] In a possible implementation of the present application, the current intensity division in the current flow direction of the first radiation part is symmetrical to the intensity division in the current flow direction of the second radiation part.

[0011] In a possible implementation of the present application, the radiator includes a feeding point; the feeding point is used to connect to multiple radio frequency paths, each radio frequency path corresponds to an operating frequency band; different radio frequency paths correspond to different operating frequency bands.

[0012] In one possible implementation of the present application, the target frequency band includes: an operating frequency band corresponding to each of multiple RF paths; each RF path includes a matching circuit so that the operating mode of the radiator remains unchanged when the target frequency band of the radiator is different.

[0013] In the second aspect, an embodiment of the present application provides an electronic device, including: a device body and an antenna, the antenna is arranged on the device body, the antenna includes a radiator, the radiator includes a first radiating part, a second radiating part and a third radiating part, the third radiating part is located between the first radiating part and the second radiating part, the third radiating part includes a first part and a second part; and the width of the first part is equal to the width of the first radiating part.

[0014] In one possible implementation of the present application, the radiator of the antenna includes one of the following: the radiator of the antenna is formed by part of the metal shell of the device body; the radiator of the antenna is formed by the metal part inside the device body; the radiator of the antenna is formed by the metal part on the carrier inside the device body for conducting and carrying electronic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a partially cutaway structure of an electronic device provided in an embodiment of the present application;

[0016] Figure 2 A schematic diagram of the structure of the antenna provided in an embodiment of the present application;

[0017] Figure 3 Schematic diagram of the structure of antenna 1;

[0018] Figure 4 Schematic diagram of the structure of antenna 2;

[0019] Figure 5 A schematic diagram of the distribution of current and voltage when the half-wavelength antenna provided in an embodiment of the present application is in operation;

[0020] Figure 6 A schematic diagram of the distribution of current and voltage when the full-wavelength antenna provided in an embodiment of the present application is in operation;

[0021] Figure 7 A schematic diagram of the current flow direction of the second part of the antenna provided in an embodiment of the present application;

[0022] Figure 8 A schematic structural diagram of a trapezoidal second portion of the antenna provided in an embodiment of the present application;

[0023] Figure 9 A schematic diagram of a structure in which the second portion of the antenna provided in an embodiment of the present application is a triangle;

[0024] Figure 10 A schematic structural diagram of a second rectangular portion of an antenna provided in an embodiment of the present application;

[0025] Figure 11 A schematic diagram of the structure of the antenna provided in an embodiment of the present application, in which the second portion is arranged on a side of the first portion away from the feeding branch;

[0026] Figure 12 A schematic diagram of the structure in which the second part of the antenna provided in an embodiment of the present application is arranged on both sides of the first part;

[0027] Figure 13 A schematic diagram of the structure of the matching circuit in the antenna provided in an embodiment of the present application.

[0028] Reference numerals:

[0029] 1-Device body; 11-Casing; 12-Control mainboard; 121-Matching circuit; 122-Selection switch; 2-Antenna; 21-First radiating part; 22-Second radiating part; 23-Third radiating part; 231-First part; 232-Second part; 24-Background branch; 25-Feeding branch; 251-Feeding point; 26-First inductor; 27-Second inductor. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not intended to limit the scope of the present application.

[0031] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of this application, unless otherwise specified, "multiple" means two or more.

[0032] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to changes in the orientation of the components in the drawings.

[0033] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0034] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0035] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0036] An embodiment of the present application provides an electronic device, which may be a computer, a mobile phone, a drone, or other device, and may be a device that requires wireless communication in the fields of communications, scientific research, and medical treatment, but the present application does not impose any restrictions on this.

[0037] Reference Figure 1 The electronic device provided in the embodiment of the present application includes a device body 1 and an antenna 2. The antenna 2 is connected to the device body 1. The antenna 2 can be used to transmit or receive electromagnetic waves so that the electronic device can achieve wireless communication with other devices through electromagnetic waves.

[0038] Among them, the device body 1 provides an installation basis for the antenna 2. The device body 1 may include a shell 11, a control motherboard 12, a power supply, etc. The control motherboard 12 and the power supply are installed in the shell 11, and the power supply and the antenna 2 are electrically connected to the control motherboard 12. The power supply is used to supply power to the control motherboard 12 and the antenna 2, and the control motherboard 12 is used to process the transmitting and receiving signals of the antenna 2.

[0039] In addition, the embodiment of the present application provides an antenna 2, referring to Figure 2 The antenna 2 provided in the embodiment of the present application includes a radiator, which includes a first radiating part 21, a second radiating part 22 and a third radiating part 23. The third radiating part 23 is located between the first radiating part 21 and the second radiating part 22. The third radiating part 23 includes a first part 231 and a second part 232; and the width of the first part 231 is equal to the width of the first radiating part 21.

[0040] The antenna 2 provided in an embodiment of the present application includes a radiator for radiating electromagnetic waves, the radiator including a first radiating portion 21 and a second radiating portion 22, and a third radiating portion 23 is arranged between the first radiating portion 21 and the second radiating portion 22, the third radiating portion 23 including a first portion 231 and a second portion 232, wherein the width of the first portion 231 is equal to the width of the first radiating portion 21, that is, the radiator includes an additional second portion 232. Due to the presence of the second portion 232, the area of the radiator is increased, so that the current and voltage in the radiator can be more dispersed, thereby reducing the distribution of the current and voltage per unit area of the radiator, and the SAR value is related to the electric field strength per unit volume of the radiator. When the current and voltage per unit volume are dispersed, the corresponding electric field strength decreases accordingly, that is, the SAR value is reduced.

[0041] The width of the radiator is Figure 2 The dimensions of the radiator along the width direction and the width dimensions of each part of the radiator are not limited in this application. Optionally, the widths of the first radiating part 21, the second radiating part 22 and the third radiating part 23 are the same.

[0042] It should be noted that the antenna 2 also includes a ground return branch 24 and a feed branch 25. Figure 2 The ground return branch 24 is arranged at one end of the radiator, and the extension direction of the ground return branch 24 is perpendicular to the extension direction of the radiator, and the feeding branch 25 is arranged parallel to the ground return branch 24.

[0043] In addition, refer to Figures 3 to 6The arrows along the length direction of the radiator in the figure represent the current, and their size corresponds to the current intensity. The arrows along the width direction of the radiator in the figure represent the voltage, and their size corresponds to the voltage level. Since the voltage and current have a certain relationship, that is, the position where the current intensity is larger, the voltage is correspondingly smaller, and the position where the current intensity is smaller, the voltage is correspondingly larger, and when the current direction changes, the voltage direction changes accordingly, so this application takes the current as an example for explanation.

[0044] It should be noted that in the present application, antenna 2 operates based on the target frequency band, and the operating mode of antenna 2 is affected by the target frequency band. When the target frequency band is different, the operating mode of antenna 2 is different.

[0045] For example, when antenna 2 operates based on the first target frequency band, the currents in each radiating part of the radiator flow in the same direction, the currents in the first radiating part 21, the second radiating part 22 and the third radiating part 23 flow in the same direction, and antenna 2 operates in an unbalanced working mode.

[0046] For another example, when antenna 2 operates based on the second target frequency band, and the second target frequency band is different from the first target frequency band, the current flow direction of each radiating part in the radiator is different, and the current flow direction of the first radiating part 21 is at a certain angle to the current flow direction of the second radiating part 22.

[0047] For another example, when antenna 2 operates based on the third target frequency band, and the third target frequency band is different from the first target frequency band and the second target frequency band, the current flow direction of each radiating part in the radiator is different, and the current flow direction of the first radiating part 21 is opposite to the current flow direction of the second radiating part 22. At this time, antenna 2 operates in a balanced working mode.

[0048] Since the electromagnetic waves in the antenna 2 are usually generated by alternating current, the transformed form of the electromagnetic waves can be regarded as cosine waves. The magnitude and direction of the electromagnetic waves will change periodically with the frequency of the alternating current, that is, the magnitude and direction of the current that excites the electromagnetic waves will change periodically.

[0049] Reference Figure 4 、 Figure 5 and Figure 6Taking the distribution of current on the radiator during a complete cycle as an example, at the beginning of the cycle, the current is at its maximum value. From the beginning to 1 / 4 cycle, the current flows in the first direction, and the current intensity gradually decreases until 1 / 4 cycle, the current intensity drops to 0, and the current flows in the opposite direction; from 1 / 4 cycle to 1 / 2 cycle, the current flows in the second direction, which is opposite to the first direction, and the current intensity gradually increases until 1 / 2 cycle, when the current intensity increases to the maximum value; from 1 / 2 cycle to 3 / 4 cycle, the current continues to flow in the second direction, and the current intensity gradually decreases until 3 / 4 cycle, when the current intensity drops to 0, and the current flows in the opposite direction again; from 3 / 4 cycle to the end of the cycle, the current moves in the first direction, and the current intensity gradually increases until the end of the cycle, when the current intensity increases to the maximum value.

[0050] The length of the radiator is related to the wavelength of the target frequency band. Therefore, when the length of the radiator is equal to the wavelength of the target frequency band, a complete cycle of current distribution will be reflected on the radiator. At this time, the current will reverse at the radiator's position corresponding to 1 / 4 of the target frequency band wavelength and the radiator's position corresponding to 3 / 4 of the target frequency band wavelength. When the length of the radiator is equal to half the wavelength of the target frequency band, half a cycle of current distribution will be reflected on the radiator. At this time, the current will reverse at the middle position of the radiator, that is, the radiator's position corresponding to 1 / 4 of the target frequency band wavelength.

[0051] Reference Figure 5 In one possible implementation of the present application, the length of the radiator is 1 / 2 wavelength of the target frequency band, and the position of the third radiating portion 23 corresponds to 1 / 4 wavelength of the target frequency band. With this configuration, the antenna 2 operates in a half-wavelength resonant mode, and the current reverses at the position of the radiator corresponding to 1 / 4 wavelength of the target frequency band, that is, at the middle position of the radiator. Due to the reversal of the current, the electric field directions at both ends of the radiator will also be opposite, and the electric field strengths at both ends will weaken each other, thereby reducing the SAR value of the radiator.

[0052] Reference Figure 6 In another possible implementation of the present application, the length of the radiator is the wavelength of the target frequency band, the position of the third radiating portion 23 corresponds to 1 / 4 wavelength of the target frequency band, or the position of the third radiating portion 23 corresponds to 3 / 4 wavelength of the target frequency band.

[0053] Correspondingly, the current at the 1 / 4 wavelength position and 3 / 4 wavelength position of the radiator corresponding to the target frequency band, that is, at the 1 / 4 length and 3 / 4 length of the radiator, is reversed, that is, the electric field direction at both ends of the radiator is opposite to the electric field direction in the middle part, weakening each other, and the SAR value of the radiator also decreases accordingly.

[0054] Since the current changes direction when the radiator corresponds to the 1 / 4 wavelength position and the 3 / 4 wavelength position of the target frequency band, the current changes more dramatically. In order to make the current here more stable, the second part 232 of the third current part forms a balun-like structure, which can change the direction of the current. Figure 7 When current flows through the third radiating portion 23, due to the skin effect of the current, the current tends to flow along the edge of the second portion 232, thereby increasing the current flow path. In this process, the current will gradually stabilize, playing a stabilizing role similar to that of a balun structure.

[0055] Therefore, the second part 232 can have a variety of final forms. It only needs to ensure that the second part 232 protrudes relative to the first part 231 and can increase the flow path of the current. For example, the second part 232 can be a symmetrical structure such as a rectangle, trapezoid, triangle, semicircle, etc., or it can be an asymmetrical structure. In order to make the current distribution on the radiator more symmetrical and the weakening effect of the electric field more obvious, optionally, the second part 232 adopts a symmetrical structure such as a stepped type.

[0056] Reference Figure 8 In a possible implementation of the present application, the second portion 232 is a trapezoid; Figure 9 In another possible implementation of the present application, the second portion 232 is a triangle; Figure 10 In another possible implementation of the present application, the second portion 232 is rectangular; Figure 11 In another possible implementation of the present application, the second portion 232 is stepped;

[0057] It should be noted that along the axis of symmetry, the rectangular, trapezoidal, and stepped shapes all have a smaller end and a larger end. Optionally, the larger end of the second portion 232 is connected to the first portion 231, or alternatively, the smaller end of the second portion 232 is connected to the first portion 231. This is not a limitation of the present application. When the smaller end of the second portion 232 is connected to the first portion 231, the current flow path in the second portion 232 is further increased, further enhancing the current stabilization effect of the balun-like structure.

[0058] In addition, the present application does not limit the relative positions of the second portion 232 and the first portion 231. Figure 10 In a possible implementation of the present application, the second portion 232 is provided on a side of the first portion 231 close to the feeding branch 25; Figure 11 In another possible implementation of the present application, the second portion 232 is disposed on a side of the first portion 231 away from the feeding branch 25; Figure 12In another possible implementation of the present application, the second portion 232 is provided on both sides of the first portion 231 close to or away from the feeding branch 25 .

[0059] It should be noted that increasing the area of the second part 232 can increase the dispersion effect of current and voltage, which helps to reduce the SAR value. However, in order not to affect the resonant frequency of the radiator, optionally, the size of the second part 232 along the direction perpendicular to the width of the radiator is less than 1 / 10 of the size of the radiator along its own width direction.

[0060] In addition, the present application does not limit the dimensions of the first radiating portion 21, the second radiating portion 22, and the third radiating portion 23 along the length direction of the radiator. Optionally, the first radiating portion 21 and the second radiating portion 22 are both larger than the third radiating portion 23; or, the first radiating portion 21 is larger than the second radiating portion 22, and the second radiating portion 22 is larger than the third radiating portion 23; or, the first radiating portion 21 and the second radiating portion 22 are equal, and both are larger than the third radiating portion 23.

[0061] Since the current intensity gradually decreases as it moves away from the grounded branch, in order to make the first radiation portion 21 and the second radiation portion 22 symmetrical, Figure 2 In a possible implementation of the present application, the first end of the radiator is connected to the ground through the first inductor 26, and the second end of the radiator is connected to the ground through the second inductor 27. The inductance value of the first inductor 26 is different from the inductance value of the second inductor 27, so that the first radiating portion 21 and the second radiating portion 22 are symmetrical with respect to the third radiating portion 23.

[0062] The current flow direction is reversed in the third radiation portion 23, that is, the current flow direction of the first radiation portion 21 is opposite to the current flow direction of the second radiation portion 22. By setting the first inductor 26 and the second inductor 27, the current intensity distribution on the radiator can be adjusted. Figure 5 In a possible implementation of the present application, the current intensity division in the current flow direction of the first radiating part 21 is symmetrical with the intensity division in the current flow direction of the second radiating part 22, so that the first radiating part 21 and the second radiating part 22 form two electric fields with the same electric field strength and opposite electric field directions. The electric fields of the first radiating part 21 and the second radiating part 22 are equally weakened, so that the overall electric field strength of the radiator is greatly reduced, further reducing the SAR value of the antenna 2.

[0063] It should be noted that the present application does not limit the inductance value of the first inductor 26 and the inductance value of the second inductor 27. Optionally, the inductance value of the first inductor 26 is greater than the inductance value of the second inductor 27; or, the inductance value of the first inductor 26 is less than the inductance value of the second inductor 27.

[0064] In addition, the grounding method of antenna 2 in the present application can be adapted accordingly according to the type of electronic device. For example, when the electronic device is a mobile phone, one end of antenna 2 containing the ground return branch 24 can be connected to the metal middle frame of the mobile phone, and the radiator of antenna 2 can be set on the antenna 2 bracket through an injection molding process, or the other end of antenna 2 can be connected to another metal frame.

[0065] Reference Figure 13 A feeding point 251 is provided at one end of the feeding branch 25 away from the radiator. In order to enable the antenna 2 of the present application to operate in different working frequency bands, a plurality of RF paths are provided on the control main board 12. Each RF path corresponds to an working frequency band, and different RF paths correspond to different working frequency bands. The feeding point 251 is used to connect to multiple RF paths.

[0066] Specifically, the feeding point 251 is connected to multiple RF paths through the selection switch 122. The control motherboard 12 can control the on and off of the selection switch 122, so that one of the multiple RF paths is connected to the antenna 2, so that the antenna 2 switches to the corresponding working frequency band. This setting enables the antenna 2 of the present application to adapt to multiple working frequency bands, thereby broadening the application range of the antenna 2.

[0067] In one possible implementation of the present application, the target frequency band includes: an operating frequency band corresponding to each RF path in multiple RF paths; each RF path includes a matching circuit 121 so that the operating mode of the radiator remains unchanged when the target frequency band of the radiator is different.

[0068] Among them, the matching circuit 121 is composed of a combination of components such as inductors and capacitors. The matching circuit 121 adjusts the effective path of the current on the antenna 2 so that the effective path length of the current corresponds to the wavelength of the target frequency band, so that the radiator can maintain the same working mode when the target frequency band of the radiator is different, so that the antenna 2 of the present application can be used in a wider frequency band range.

[0069] In order to illustrate the effect of this application, antennas with different structures were tested, and the relevant data are as follows:

[0070] Table 1 Antennas and corresponding test SAR values

[0071] antenna Operating frequency (GHz) SAR value (W / kg) Antenna 1( Figure 3 shown) 3.72 1.58 Antenna 2 ( Figure 4 shown) 3.69 1.23 Antenna Three ( Figure 5 shown) 3.77 0.96

[0072] It can be seen from the above table that the antenna of the present application, namely antenna three, can effectively reduce the SAR value while ensuring the operating frequency.

[0073] The serial numbers of the embodiments of this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are only preferred embodiments of this application and do not limit the scope of the patent of this application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of this application.

Claims

1. An antenna, comprising: A radiator, comprising: a first radiation portion, wherein the current of the radiator flows in a first direction in the first radiation portion; a second radiating portion, wherein the current of the radiator flows in a second direction in the second radiating portion, and the first direction is different from the second direction; The third radiating portion is located between the first radiating portion and the second radiating portion, and is located at a position where the current flow direction of the radiator is reversed. The third radiating portion includes a first portion and a second portion; and the width of the first portion is equal to the width of the first radiating portion. The antenna according to claim 1 , wherein the antenna operates based on a target frequency band.

3. The antenna according to claim 1, wherein the length of the radiator is related to the target frequency band; If the length of the radiator is 1 / 2 wavelength of the target frequency band, the position of the third radiating portion corresponds to 1 / 4 wavelength of the target frequency band; If the length of the radiator is the wavelength of the target frequency band, the position of the third radiating portion corresponds to 1 / 4 wavelength of the target frequency band, or the position of the third radiating portion corresponds to 3 / 4 wavelength of the target frequency band. 4 . The antenna according to claim 2 , wherein the shape of the second portion comprises any one of the following: stepped, trapezoidal, triangular, rectangular, and semicircular.

5. The antenna according to claim 4, wherein the first end of the radiator is connected to the ground via a first inductor, and the second end of the radiator is connected to the ground via a second inductor, and the inductance value of the first inductor is different from the inductance value of the second inductor, so that the first radiating portion and the second radiating portion are symmetrical with respect to the third radiating portion. 6 . The antenna according to claim 5 , wherein the current intensity division in the current flow direction of the first radiation portion is symmetrical to the intensity division in the current flow direction of the second radiation portion.

7. The antenna according to claim 6, wherein the radiator comprises: Feed point; The feeding point is used to connect to multiple radio frequency paths, each radio frequency path corresponding to an operating frequency band; Different RF channels correspond to different operating frequency bands.

8. The antenna according to claim 7, wherein the target frequency band comprises: an operating frequency band corresponding to each of the plurality of radio frequency paths; Each radio frequency path includes a matching circuit so that the operating mode of the radiator remains unchanged when the target frequency band of the radiator is different.

9. An electronic device, comprising: Equipment body; An antenna is provided on the device body, and includes a radiator. The radiator includes: a first radiation portion, wherein the current of the radiator flows in a first direction in the first radiation portion; a second radiating portion, wherein the current of the radiator flows in a second direction in the second radiating portion, and the first direction is different from the second direction; The third radiating portion is located between the first radiating portion and the second radiating portion, and is located at a position where the current flow direction of the radiator is reversed. The third radiating portion includes a first portion and a second portion; and the width of the first portion is equal to the width of the first radiating portion.

10. The electronic device according to claim 9, wherein the radiator of the antenna comprises one of the following: The radiator of the antenna is formed by a portion of the metal shell of the device body; The radiator of the antenna is formed by a metal part in the device body; The radiator of the antenna is formed by a metal portion on a carrier in the device body for conducting and carrying electronic components.

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