Antenna and electronic equipment

Abstract

The invention provides an antenna and electronic equipment. The antenna comprises a main radiator, a switch assembly and a feed source. The main radiating body comprises a first radiating part and a second radiating part which are connected in a bending manner, the first radiating part is provided with a first end, a first feeding point and a grounding point which are arranged in sequence, and the second radiating part is provided with a grounding point, a second feeding point and a second end which are arranged in sequence; one end of the switch assembly is electrically connected to the first feeding point, and the other end is electrically connected to the second feeding point; the feed source is electrically connected to the switch assembly; when the antenna is in the first state, the feed source is electrically connected to the first feed point and disconnected from the second feed point to support a target frequency band and has a first directional diagram; when the antenna is in a second state, the feed source is electrically connected to the second feed point and disconnected from the first feed point so as to support the target frequency band and have a second directional diagram. According to the antenna provided by the invention, the directional diagram of the single antenna in the target frequency band can be reconfigurable, and the antenna has a relatively good communication effect in the target frequency band.

Description

Technical Field

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

[0002] With the development of technology, electronic devices with communication functions such as mobile phones are becoming more and more popular and their functions are becoming more and more powerful. Electronic devices usually include antennas to realize the communication function of electronic devices. However, the communication performance of antennas in electronic devices in the related art is not good enough and there is still room for improvement. Summary of the invention

[0003] In a first aspect, an embodiment of the present application provides an antenna, the antenna comprising:

[0004] A main radiator, the main radiator comprising a first radiating portion and a second radiating portion connected in a bent manner, the first radiating portion having a first end, a first feeding point and a grounding point arranged in sequence, and the second radiating portion having the grounding point, a second feeding point and a second end arranged in sequence;

[0005] a switch component, one end of which is electrically connected to the first feeding point, and the other end of which is electrically connected to the second feeding point; and

[0006] a feed source electrically connected to the switch assembly;

[0007] The antenna has a first state and a second state. When the antenna is in the first state: the feed source is electrically connected to the first feed point via the switch component, and the feed source is electrically disconnected from the second feed point, the antenna supports the target frequency band and has a first radiation pattern; when the antenna is in the second state: the feed source is electrically connected to the second feed point via the switch component, and the feed source is electrically disconnected from the first feed point, the antenna supports the target frequency band and has a second radiation pattern, and the first radiation pattern is different from the second radiation pattern.

[0008] In summary, the antenna provided in the embodiment of the present application has a first state and a second state. When the antenna is in the first state: the feed source is electrically connected to the first feed point via the switch component, the feed source is electrically disconnected from the second feed point, the feed source of the antenna excites the first radiating part to support the target frequency band, and has a first directional pattern. When the antenna is in the second state: the feed source is electrically connected to the second feed point via the switch component, and the feed source is electrically disconnected from the first feed point, the feed source of the antenna excites the second radiating part to support the target frequency band, and has a second directional pattern. Since the first radiating part is connected to the second radiating part in a bending manner, the first directional pattern is different from the second directional pattern. It can be seen from this that the antenna provided in the embodiment of the present application can have different directional patterns when the antenna supports the target frequency band through the first state and the second state of the antenna, thereby realizing the reconfiguration of the directional pattern of a single antenna. Therefore, in the communication scenario when the antenna is used to communicate with other devices, the switch component is controlled to realize the selection of the directional pattern when the antenna supports the target frequency band, thereby improving the communication experience when the antenna supports the target frequency band. It can be seen that the antenna provided in the embodiment of the present application has a good communication effect in the target frequency band. In addition, since the directional pattern of the target frequency band can be reconstructed using a single antenna, there is no need to use multiple antennas to reconstruct the directional pattern of the target frequency band. When the antenna is used in an electronic device, it is convenient to layout it in the electronic device with other components of the electronic device.

[0009] In a second aspect, an embodiment of the present application provides an electronic device, wherein the electronic device includes the antenna as described in the first aspect.

[0010] In summary, the electronic device provided in the embodiment of the present application includes an antenna, and the antenna has a first state and a second state. When the antenna is in the first state: the feed source is electrically connected to the first feed point via the switch component, the feed source is electrically disconnected from the second feed point, and the feed source of the antenna excites the first radiating part to support the target frequency band and has a first directional pattern. When the antenna is in the second state: the feed source is electrically connected to the second feed point via the switch component, and the feed source is electrically disconnected from the first feed point, and the feed source of the antenna excites the second radiating part to support the target frequency band and has a second directional pattern. Since the first radiating part is connected to the second radiating part in a bending manner, the first directional pattern is different from the second directional pattern. It can be seen from this that the antenna provided in the embodiment of the present application can have different directional patterns when the antenna supports the target frequency band through the first state and the second state of the antenna, thereby realizing the reconfigurable directional pattern of a single antenna. Therefore, in the communication scenario when the antenna is used to communicate with other devices, the switch component is controlled to realize the selection of the directional pattern when the antenna supports the target frequency band, thereby improving the communication experience when the antenna supports the target frequency band. It can be seen that the antenna provided in the embodiment of the present application has a good communication effect in the target frequency band. In addition, since the directional pattern of the target frequency band can be reconstructed using a single antenna, there is no need to use multiple antennas to reconstruct the directional pattern of the target frequency band. When the antenna is used in an electronic device, it is convenient to layout it in the electronic device with other components of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 A schematic diagram of an antenna provided in one embodiment of the present application;

[0013] Figure 2 for Figure 1 An equivalent schematic diagram of the antenna shown in FIG. 1 when the antenna is in a first state;

[0014] Figure 3 for Figure 1 An equivalent schematic diagram of the antenna shown in FIG. 1 when it is in the second state;

[0015] Figure 4 for Figure 2 A schematic diagram of a first resonant current when the antenna is in a first state;

[0016] Figure 5 for Figure 3 A schematic diagram of a second resonant current when the antenna is in a second state;

[0017] Figure 6 A schematic diagram of an antenna provided in another embodiment of the present application;

[0018] Figure 7 for Figure 6 An equivalent schematic diagram of the antenna shown in FIG. 1 when the antenna is in a first state;

[0019] Figure 8 for Figure 6 An equivalent schematic diagram of the antenna shown in the second state;

[0020] Fig. 9 for Figure 7 Schematic diagram of a first resonant current and a parasitic resonant current when the antenna shown in is in a first state;

[0021] Fig.10 A schematic diagram of an antenna provided in one embodiment of the present application;

[0022] Fig.11 for Fig.10 A schematic diagram of the switch assembly shown in ;

[0023] Fig.12 A schematic diagram of an antenna provided in another embodiment of the present application;

[0024] Fig.13 for Fig.12 A schematic diagram of the switch assembly shown in ;

[0025] Fig.14 for Fig.12 The three-dimensional radiation pattern of the antenna in the B3 frequency band when it is in the first state;

[0026] Fig.15 for Fig.12 The three-dimensional radiation pattern of the antenna in the B1 frequency band when it is in the first state shown;

[0027] Fig.16 for Fig.12 The three-dimensional radiation pattern of the antenna in the B40 frequency band when it is in the first state shown;

[0028] Fig.17 for Fig.12 The three-dimensional radiation pattern of the antenna in the B41 frequency band when it is in the first state shown;

[0029] Fig.18 for Fig.12 The two-dimensional radiation pattern of the antenna in the B3 frequency band when it is in the first state shown;

[0030] Fig.19 for Fig.12 The two-dimensional radiation pattern of the antenna in the B1 frequency band when it is in the first state shown;

[0031] Fig. 20 for Fig.12 The two-dimensional radiation pattern of the antenna in the B40 frequency band when it is in the first state shown;

[0032] Fig.21 for Fig.12 The two-dimensional radiation pattern of the antenna in the B41 frequency band when it is in the first state shown;

[0033] Fig. 22 for Fig.12 The three-dimensional radiation pattern of the antenna in the B3 frequency band when it is in the second state;

[0034] Fig.23 for Fig.12 The three-dimensional radiation pattern of the antenna in the B1 frequency band when it is in the second state shown;

[0035] Fig.24 for Fig.12 The three-dimensional radiation pattern of the antenna in the B40 frequency band when it is in the second state shown;

[0036] Fig.25 for Fig.12 The three-dimensional radiation pattern of the antenna in the B41 frequency band when it is in the second state shown;

[0037] Fig.26 for Fig.12 The two-dimensional radiation pattern of the antenna in the B3 frequency band when it is in the second state;

[0038] Fig. 27 for Fig.12 The two-dimensional radiation pattern of the antenna in the B1 frequency band when it is in the second state;

[0039] Fig.28 for Fig.12 The two-dimensional radiation pattern of the antenna in the B40 frequency band when it is in the second state shown;

[0040] Fig.29 for Fig.12 The two-dimensional radiation pattern of the antenna in the B41 frequency band when it is in the second state shown;

[0041] Fig.30 A three-dimensional schematic diagram of an electronic device provided in one embodiment;

[0042] Fig.31 for Fig.30 A schematic diagram of a portion of the structure of an electronic device;

[0043] Fig.32 for Fig.31 Enlarged schematic diagram of point I in the middle.

[0044] Description of main component numbers

[0045] Electronic device 1, antenna 10, middle frame 30, display screen 70, housing 90;

[0046] Main radiator 110, first radiating portion 110a, first end 111, first feeding point P1, grounding point G0, second radiating portion 110b, second feeding point P2, second end 112;

[0047] Switch assembly 120, common terminal 120a, first port 120b, second port 120c, third port 120d, fourth port 120e;

[0048] A first switch 121, a second switch 122, a third switch 123, a fourth switch 124, a fifth switch 125, a sixth switch 126, a seventh switch 127, and an eighth switch 128;

[0049] A first tuning device 131, a second tuning device 132, a third tuning device 133, and a fourth tuning device 134;

[0050] Feed source S, matching circuit M, parasitic radiator 150, ground terminal 151, coupling terminal 152, coupling slot 150a;

[0051] Frame body 310, frame 320, first gap 320a, second gap 320b, first frame 321, second frame 322;

[0052] The first resonant current I1, the second resonant current I2, and the parasitic resonant current I3. DETAILED DESCRIPTION

[0053] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the embodiments described in the present application are only a part of the embodiments, not all of the embodiments. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present application.

[0054] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it mutually exclusive, independent, or alternative to other embodiments. It can be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0055] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example: a component or device including one or more parts is not limited to the one or more parts listed, but optionally includes one or more parts that are not listed but inherent to the exemplified product, or one or more parts that it should have based on the described function.

[0056] Please also read Figure 1 , Figure 2 and Figure 3 , Figure 1 A schematic diagram of an antenna provided in one embodiment of the present application; Figure 2 for Figure 1 An equivalent schematic diagram of the antenna shown in FIG. 1 when the antenna is in a first state; Figure 3 for Figure 1 The equivalent schematic diagram of the antenna shown in the figure when it is in the second state. The antenna 10 includes a main radiator 110, a switch component 120 and a feed source S. The main radiator 110 includes a first radiating portion 110a and a second radiating portion 110b connected in a bent manner. The first radiating portion 110a has a first end 111, a first feeding point P1 and a grounding point G0 arranged in sequence. The second radiating portion 110b has the grounding point G0, a second feeding point P2 and a second end 112 arranged in sequence. One end of the switch component 120 is electrically connected to the first feeding point P1, and the other end is electrically connected to the second feeding point P2. The feed source S is electrically connected to the switch component 120. Among them, the antenna 10 has a first state and a second state. When the antenna 10 is in the first state: the feed source S is electrically connected to the first feeding point P1 via the switch component 120, and the feed source S is electrically disconnected from the second feeding point P2, and the antenna 10 supports the target frequency band and has a first radiation pattern. When the antenna 10 is in the second state: the feed source S is electrically connected to the second feeding point P2 via the switch component 120, and the feed source S is electrically disconnected from the first feeding point P1, the antenna 10 supports the target frequency band and has a second radiation pattern, and the first radiation pattern is different from the second radiation pattern.

[0057] The main radiator 110 may be a laser direct structuring (LDS) radiator, or a flexible printed circuit (FPC) radiator, or a print direct structuring (PDS) radiator, or a metal branch radiator. When the antenna 10 is applied to an electronic device 1, the main radiator 110 may be a laser direct structuring (LDS) radiator, or a flexible printed circuit (FPC) radiator, or a print direct structuring (PDS) radiator, or a metal branch radiator. Figure 30 to Figure 32 ) A mechanical design antenna (MDA) radiator with its own metal insert. For example, the main radiator 110 can be an antenna radiator designed using the middle frame 30 formed of plastic and metal of the electronic device 1. In addition, the main radiator 110 can also be a metal frame radiator designed using the metal middle frame 30.

[0058] The grounding point G0 can be electrically connected to the ground electrode through a grounding member. The grounding member can be, but is not limited to, a conductive screw, a conductive glue, a conductive spring, or a conductive connecting rib. When the antenna 10 is applied to an electronic device 1, the ground electrode can be, but is not limited to, an electronic device 1 (see Figure 30 to Figure 32 ) the frame body 310 of the middle frame 30, or the ground of the circuit board of the electronic device 1, or the shielding part of the display screen of the electronic device 1, or the conductive back cover of the electronic device 1, etc.

[0059] The switch assembly 120 may be, but is not limited to, a single-pole four-throw switch (SP4T) or other switches, which will be described in detail later.

[0060] Since the first radiating portion 110a is connected to the second radiating portion 110b by bending, and the first radiating portion 110a has a first end 111, a first feeding point P1 and a grounding point G0 connected in sequence, and the second radiating portion 110b has the grounding point G0, a second feeding point P2 and a second end 112 arranged in sequence. Therefore, the first radiating portion 110a is an inverted F antenna (IFA) radiator, and the opening direction of the first radiating portion 110a is the direction in which the grounding point G0 points to the first end 111. The second radiating portion 110b is an inverted F antenna radiator, and the switch of the second radiating portion 110b is the direction in which the grounding point G0 points to the second end 112. In the perspective of the figure, the opening of the first radiating portion 110a faces left; the opening of the second radiating portion 110b faces downward. It can be understood that as the placement posture of the main radiator 110 is different, the orientation of the first radiating portion 110a and the orientation of the second radiating portion 110b are also different. The opening direction of the first radiating portion 110a is different from the opening direction of the second radiating portion 110b. Therefore, the directional pattern when the feed source S in the antenna 10 excites the first radiating portion 110a to support the target frequency band is different from the directional pattern when the feed source S excites the second radiating portion 110b to support the target frequency band. The specific situation is described as follows.

[0061] When the antenna 10 is in the first state: the feed source S is electrically connected to the first feed point P1 via the switch component 120, and the feed source S is electrically disconnected from the second feed point P2. Therefore, when the antenna 10 is in the first state, the feed source S is electrically connected to the first feed point P1 via the switch component 120, and the feed source S excites the first radiating portion 110a to work, so that the antenna 10 supports the target frequency band and has a first radiation pattern.

[0062] When the antenna 10 is in the second state: the feed source S is electrically connected to the second feed point P2 via the switch component 120, and the feed source S is electrically disconnected from the first feed point P1. Therefore, when the antenna 10 is in the second state, the feed source S is electrically connected to the second feed point P2 via the switch component 120, and the feed source S excites the second radiating portion 110b to work, so that the antenna 10 supports the target frequency band and has a second radiation pattern.

[0063] The first directional pattern is different from the second directional pattern, including but not limited to that the main lobe direction of the first directional pattern is different from the main lobe direction of the second directional pattern. The difference between the first directional pattern and the second directional pattern will be described later in conjunction with the simulation diagram.

[0064] In one embodiment, the target frequency band includes a medium-high frequency band, or a WiFi 2.4G frequency band, or an N78 frequency band, etc. In the embodiment of the present application, the target frequency band includes a medium-high frequency band (i.e., a medium frequency band and a high frequency band) as an example for explanation, which is understandable and should not be understood as a limitation on the antenna 10 provided in the embodiment of the present application.

[0065] When the target frequency band includes a medium-high frequency band, or a WiFi 2.4G frequency band, or an N78 frequency band, the communication requirements of the antenna 10 in the medium-high frequency band, or the WiFi 2.4G frequency band, or the N78 frequency band can be met.

[0066] In summary, the antenna 10 provided in the embodiment of the present application has a first state and a second state. When the antenna 10 is in the first state: the feed source S is electrically connected to the first feeding point P1 via the switch component 120, the feed source S is electrically disconnected from the second feeding point P2, the feed source S of the antenna 10 excites the first radiating portion 110a to support the target frequency band, and has a first directivity pattern. When the antenna 10 is in the second state: the feed source S is electrically connected to the second feeding point P2 via the switch component 120, and the feed source S is electrically disconnected from the first feeding point P1, the feed source S of the antenna 10 excites the second radiating portion 110b to support the target frequency band, and has a second directivity pattern. Since the first radiating portion 110a is connected to the second radiating portion 110b by bending, the first directivity pattern is different from the second directivity pattern. It can be seen that the antenna 10 provided in the embodiment of the present application can have different directional patterns when the antenna 10 supports the target frequency band through the first state and the second state of the antenna 10, thereby realizing the reconfiguration of the directional pattern of the single antenna 10. Therefore, in the communication scenario when the antenna 10 is used to communicate with other devices, the switch component 120 is controlled to realize the selection of the directional pattern when the antenna 10 supports the target frequency band, thereby improving the communication experience when the antenna 10 supports the target frequency band. It can be seen that the antenna 10 provided in the embodiment of the present application has a good communication effect in the target frequency band. In addition, since the directional pattern of the target frequency band can be reconstructed using a single antenna 10, it is not necessary to use multiple antennas 10 to realize the reconstruction of the directional pattern of the target frequency band. It can be seen that the antenna 10 provided in the embodiment of the present application is conducive to saving the cost of the antenna 10 and saving the space of the electronic device 1 to which the antenna 10 is applied. When the antenna 10 is applied to the electronic device 1, it is convenient to be laid out in the electronic device 1 with other devices of the electronic device 1.

[0067] In a related technology (which should not be understood as the prior art), the phased beam array scanning principle is used, and multiple antennas are used to achieve directional beam coverage. However, in the related technology, using multiple antennas to achieve directional beam coverage requires multiple antenna ports, which greatly increases the complexity and cost of the RF front-end design.

[0068] The antenna 10 provided in the embodiment of the present application does not need to use complex phased array beam scanning to adjust the radiation pattern. Therefore, the antenna 10 provided in the embodiment of the present application can be adapted to a relatively simple RF front-end circuit with lower cost.

[0069] See also Figure 4 , Figure 4 for Figure 2 The schematic diagram of the first resonant current when the antenna is in the first state is shown. When the antenna 10 is in the first state, the first resonant mode of the first radiating portion 110a supports the target frequency band, wherein the first resonant mode is a quarter wavelength mode of the first radiating portion 110a.

[0070] For the convenience of description, the resonant current corresponding to the first resonant mode is named the first resonant current I1. As can be seen from the previous introduction, when the antenna 10 is in the first state, the feed source S excites the first radiating portion 110a to work. Specifically, the feed source S excites the first resonant mode of the first radiating portion 110a to support the target frequency band. In the current half-wavelength period shown in the figure, the first resonant current I1 flows from the first end 111 to the grounding point G0. It can be understood that the first resonant current I1 changes periodically, and in the next half-wavelength period, the first resonant current I1 flows from the grounding point G0 to the first end 111.

[0071] As can be seen from the foregoing description, the first radiating portion 110a is an IFA radiating portion, and therefore, the first resonant mode is a quarter-wavelength mode, also referred to as the first resonant mode being a quarter-wavelength IFA mode. It should be noted that the "wavelength" in the first resonant mode being a quarter-wavelength mode refers to the wavelength corresponding to the center frequency (also referred to as the center frequency point) of the target frequency band.

[0072] The quarter-wavelength mode is also called the fundamental mode. When the antenna 10 is in the first state, the fundamental mode of the first radiating portion 110a supports the target frequency band, and the antenna 10 has a higher radiation efficiency in the target frequency band. Therefore, when the antenna 10 is in the first state, the first resonant mode of the first radiating portion 110a supports the target frequency band, wherein the first resonant mode is a quarter-wavelength mode, and the antenna 10 has a higher radiation efficiency in the target frequency band.

[0073] See also Figure 5 , Figure 5 for Figure 3 Schematic diagram of the second resonant current when the antenna is in the second state. When the antenna 10 is in the second state, the second resonant mode of the second radiating portion 110b supports the target frequency band, wherein the second resonant mode is a quarter wavelength mode of the second radiating portion 110b.

[0074] For the convenience of description, the resonant current corresponding to the second resonant mode is named the second resonant current I2. As can be seen from the previous introduction, when the antenna 10 is in the second state, the feed source S excites the second radiating portion 110b to work. Specifically, the feed source S excites the second resonant mode of the second radiating portion 110b to support the target frequency band. In the current half-wavelength period shown in the figure, the second resonant current I2 flows from the second end 112 to the grounding point G0. It can be understood that the second resonant current I2 changes periodically, and in the next half-wavelength period, the second resonant current I2 flows from the grounding point G0 to the second end 112.

[0075] As can be seen from the foregoing description, the second radiating portion 110b is an IFA radiating portion, and therefore, the second resonant mode is a quarter-wavelength mode of the second radiating portion 110b, also referred to as the second resonant mode being a quarter-wavelength IFA mode. It should be noted that the "wavelength" in the second resonant mode being a quarter-wavelength mode refers to the wavelength corresponding to the center frequency (also referred to as the center frequency point) of the target frequency band.

[0076] The quarter-wavelength mode is also called the fundamental mode. When the antenna 10 is in the second state, the fundamental mode of the second radiating portion 110b supports the target frequency band, and the antenna 10 has a higher radiation efficiency in the target frequency band. Therefore, when the antenna 10 is in the second state, the second resonant mode of the second radiating portion 110b supports the target frequency band, wherein the second resonant mode is a quarter-wavelength mode, and the antenna 10 has a higher radiation efficiency in the target frequency band.

[0077] See also Figure 6 , Figure 7 and Figure 8 , Figure 6 A schematic diagram of an antenna provided in another embodiment of the present application; Figure 7 for Figure 6 An equivalent schematic diagram of the antenna shown in FIG. 1 when the antenna is in a first state; Figure 8 for Figure 6The equivalent schematic diagram of the antenna shown in the second state. The antenna 10 includes a main radiator 110, a switch component 120 and a feed source S. The main radiator 110 includes a first radiating portion 110a and a second radiating portion 110b connected by bending. The first radiating portion 110a has a first end 111, a first feeding point P1 and a grounding point G0 arranged in sequence. The second radiating portion 110b has the grounding point G0, a second feeding point P2 and a second end 112 arranged in sequence. One end of the switch component 120 is electrically connected to the first feeding point P1, and the other end is electrically connected to the second feeding point P2. The feed source S is electrically connected to the switch component 120. Among them, the antenna 10 has a first state and a second state. When the antenna 10 is in the first state: the feed source S is electrically connected to the first feeding point P1 via the switch component 120, and the feed source S is electrically disconnected from the second feeding point P2, and the antenna 10 supports the target frequency band and has a first radiation pattern. When the antenna 10 is in the second state: the feed source S is electrically connected to the second feeding point P2 via the switch component 120, and the feed source S is electrically disconnected from the first feeding point P1, the antenna 10 supports the target frequency band and has a second radiation pattern, and the first radiation pattern is different from the second radiation pattern.

[0078] In addition, the antenna 10 further includes a parasitic radiator 150. The parasitic radiator 150 is sequentially provided with a grounding end 151 and a coupling end 152. The grounding end 151 is grounded, and the coupling end 152 is spaced apart from the first end 111 by a coupling gap 150a. The parasitic radiator 150 is coupled to the first radiating portion 110a, so that when the antenna 10 is in the first state, the parasitic radiator 150 supports a part of the target frequency band.

[0079] The main radiator 110 can be a laser direct structuring (LDS) radiator, or a flexible printed circuit (FPC) radiator, or a print direct structuring (PDS) radiator, or a metal branch radiator. When the antenna 10 is applied to an electronic device 1, the main radiator 110 can be a mechanical design antenna (MDA) radiator designed using the metal insert of the electronic device 1 itself. For example, the main radiator 110 can be an antenna radiator designed using the middle frame 30 formed of plastic and metal of the electronic device 1. In addition, the main radiator 110 can also be a metal frame radiator designed using a metal middle frame 30.

[0080] The parasitic radiator 150 may be a laser direct structuring (LDS) radiator, or a flexible printed circuit (FPC) radiator, or a print direct structuring (PDS) radiator, or a metal branch radiator. When the antenna 10 is applied to an electronic device 1, the parasitic radiator 150 may be a mechanical design antenna (MDA) radiator designed using the metal insert of the electronic device 1 itself. For example, the parasitic radiator 150 may be an antenna radiator designed using the middle frame 30 formed of plastic and metal of the electronic device 1. In addition, the parasitic radiator 150 may also be a metal frame radiator designed from a metal middle frame 30. The type of the parasitic radiator 150 may be the same as that of the main radiator 110, or the type of the parasitic radiator 150 may be different from that of the main radiator 110.

[0081] In this embodiment, the ground terminal 151 can be electrically connected to the ground electrode through a grounding member. The grounding member can be, but is not limited to, a conductive screw, a conductive glue, a conductive spring, or a conductive connecting rib. When the antenna 10 is applied to an electronic device 1, the ground electrode can be, but is not limited to, a frame body 310 of a frame 30 of the electronic device 1, or a ground of a circuit board of the electronic device 1, or a shielding member of a display screen of the electronic device 1, or a conductive back cover of the electronic device 1.

[0082] See also Figure 7 , when the antenna 10 is in the first state: the feed source S is electrically connected to the first feed point P1 via the switch component 120, and the feed source S is electrically disconnected from the second feed point P2. Therefore, when the antenna 10 is in the first state, the feed source S is electrically connected to the first feed point P1 via the switch component 120, and the feed source S excites the first radiating portion 110a and the coupled radiator to work, so that the antenna 10 supports the target frequency band and has a first radiation pattern.

[0083] See also Figure 8 , when the antenna 10 is in the second state: the feed source S is electrically connected to the second feed point P2 via the switch component 120, and the feed source S is electrically disconnected from the first feed point P1. Therefore, when the antenna 10 is in the second state, the feed source S is electrically connected to the second feed point P2 via the switch component 120, and the feed source S excites the second radiating portion 110b to work, so that the antenna 10 supports the target frequency band and has a second radiation pattern.

[0084] The first directional pattern is different from the second directional pattern, including but not limited to that the main lobe direction of the first directional pattern is different from the main lobe direction of the second directional pattern. The difference between the first directional pattern and the second directional pattern will be described later in conjunction with the simulation diagram.

[0085] In one embodiment, the target frequency band includes a medium frequency band, a high frequency band, a medium and high frequency band, a WiFi 2.4G band, or an N78 band, etc. In the embodiment of the present application, the target frequency band includes a medium and high frequency band (i.e., a medium frequency band and a high frequency band) as an example for explanation, which should be understood not to be a limitation on the antenna 10 provided in the embodiment of the present application.

[0086] The coupling end 152 is spaced apart from the first end 111, and the gap between the coupling end 152 and the first end 111 is named as a coupling gap 150a. The parasitic radiator 150 is coupled with the first radiating portion 110a through the coupling gap 150a. When the antenna 10 is in the first state, the parasitic radiator 150 supports a portion of the target frequency band. When the antenna 10 is in the first state, the feed source S excites the first radiating portion 110a, and the parasitic radiator 150 is coupled with the first radiating portion 110a and is excited to support a portion of the target frequency band. In this way, when the antenna 10 is in the first state, it can have better performance when supporting the target frequency band.

[0087] In summary, the antenna 10 provided in the embodiment of the present application has a first state and a second state. When the antenna 10 is in the first state: the feed source S is electrically connected to the first feeding point P1 via the switch component 120, the feed source S is electrically disconnected from the second feeding point P2, the feed source S of the antenna 10 excites the first radiating portion 110a to support the target frequency band, and has a first directivity pattern. When the antenna 10 is in the second state: the feed source S is electrically connected to the second feeding point P2 via the switch component 120, and the feed source S is electrically disconnected from the first feeding point P1, the feed source S of the antenna 10 excites the second radiating portion 110b to support the target frequency band, and has a second directivity pattern. Since the first radiating portion 110a is connected to the second radiating portion 110b by bending, the first directivity pattern is different from the second directivity pattern. It can be seen that the antenna 10 provided in the embodiment of the present application can have different directional patterns when the antenna 10 supports the target frequency band through the first state and the second state of the antenna 10, thereby realizing the reconfiguration of the directional pattern of the single antenna 10. Therefore, in the communication scenario when the antenna 10 is used to communicate with other devices, the switch component 120 is controlled to realize the selection of the directional pattern when the antenna 10 supports the target frequency band, thereby improving the communication experience when the antenna 10 supports the target frequency band. It can be seen that the antenna 10 provided in the embodiment of the present application has a good communication effect in the target frequency band. In addition, since the reconstruction of the directional pattern of the target frequency band can be realized by using a single antenna 10, there is no need to use multiple antennas 10 to realize the reconstruction of the directional pattern of the target frequency band. When the antenna 10 is applied to the electronic device 1, it is convenient to be laid out in the electronic device 1 with other devices of the electronic device 1.

[0088] Furthermore, when the antenna 10 is in the first state, the feed source S excites the first radiating portion 110a, and the parasitic radiator 150 is coupled to the first radiating portion 110a and is excited to support a portion of the target frequency band. In this way, when the antenna 10 is in the first state, it can have better performance when supporting the target frequency band.

[0089] Further, in one embodiment, the target frequency band includes a first sub-frequency band and a second sub-frequency band. The frequency of the first sub-frequency band is greater than the frequency of the second sub-frequency band. When the antenna 10 is in the first state, it supports at least one of the first sub-frequency band and the second sub-frequency band. When the antenna 10 is in the second state, it supports at least one of the first sub-frequency band and the second sub-frequency band. The parasitic radiator 150 is used to support the first sub-frequency band.

[0090] The frequency of the first sub-frequency band is greater than the frequency of the second sub-frequency band, including that the maximum frequency of the first sub-frequency band is greater than the maximum frequency of the second sub-frequency band. In one embodiment, the frequency range of the first sub-frequency band may not overlap with the frequency range of the second sub-frequency band; in other embodiments, the frequency range of the first sub-frequency band may overlap with the frequency range of the second sub-frequency band; whether the frequency range of the first sub-frequency band overlaps with the frequency range of the second sub-frequency band is not limited in this application, as long as the frequency of the first sub-frequency band is greater than the frequency of the second sub-frequency band.

[0091] Since the parasitic radiator 150 is coupled with the first radiating portion 110a, the parasitic radiator 150 supports a partial frequency band of the target frequency band. Therefore, the parasitic mode supported by the parasitic radiator 150 will have an efficiency pit at a frequency band greater than the partial frequency band. If the efficiency pit falls into the target frequency band, the efficiency of the target frequency band will decrease. In the embodiment of the present application, the frequency of the first sub-frequency band supported by the parasitic radiator 150 is greater than the frequency of the second sub-frequency band. Therefore, there is an efficiency pit at a frequency band greater than the first sub-frequency band, and the efficiency pit is far away from the second sub-frequency band. Therefore, the adverse effect of the efficiency pit on the radiation efficiency of the second sub-frequency band can be reduced or even avoided, and the antenna 10 has a higher radiation efficiency in the second sub-frequency band. In one embodiment, the efficiency pit is located outside the band of the target frequency band, thereby reducing or even avoiding the effect of the efficiency pit on the target frequency band, and the antenna 10 has a higher radiation efficiency in the target frequency band.

[0092] In one implementation, the target frequency band includes a medium-high frequency band. Accordingly, the first sub-frequency band is a high frequency band, and the second sub-frequency band is a medium frequency band.

[0093] When the target frequency band includes a medium-high frequency band, the communication requirements of the antenna 10 in the medium-high frequency band can be met. The first sub-band is a high frequency band, and the second sub-band is a medium frequency band. Therefore, the frequency of the high frequency band supported by the parasitic radiator 150 is greater than the frequency of the medium frequency band, and the parasitic mode supported by the parasitic radiator 150 generates an efficiency pit at a frequency band greater than the high frequency band, and the efficiency pit is far away from the medium frequency band. Therefore, the adverse effect of the efficiency pit on the radiation efficiency of the medium frequency band can be reduced or even avoided, and the antenna 10 has a higher radiation efficiency in the medium frequency band. In one embodiment, the efficiency pit is located outside the band of the medium-high frequency band, thereby reducing or even avoiding the effect of the efficiency pit on the medium-high frequency band, and the antenna 10 has a higher radiation efficiency in the medium-high frequency band.

[0094] See also Fig. 9 , Fig. 9 for Figure 7 Schematic diagram of the first resonant current and parasitic resonant current when the antenna is in the first state. When the antenna 10 is in the first state, the parasitic mode of the parasitic radiation supports the partial frequency band in the target frequency band, and the parasitic mode is a quarter wavelength mode of the parasitic radiator 150.

[0095] When the antenna 10 is in the first state, the feed source S excites the first radiating portion 110a and the parasitic radiator 150 to work. The parasitic mode is a quarter-wavelength mode of the radiator, and the quarter-wavelength mode is also called a fundamental mode. When the antenna 10 is in the first state, the fundamental mode of the parasitic radiator 150 is excited to support the partial frequency band of the target frequency band, so that the partial frequency band supported by the parasitic radiator 150 can have better radiation efficiency.

[0096] It should be noted that the “wavelength” in the quarter-wavelength mode of the parasitic mode of the parasitic radiator 150 refers to the wavelength corresponding to the center frequency of the partial frequency band supported by the parasitic mode. For example, when the parasitic radiator 150 supports the first sub-band of the target frequency band, the “wavelength” in the quarter-wavelength mode of the parasitic mode of the parasitic radiator 150 refers to the wavelength corresponding to the center frequency of the first sub-band.

[0097] For the convenience of description, the resonant current corresponding to the parasitic mode of the parasitic radiator 150 is named as the parasitic resonant current I3. In the current half-wavelength period, the parasitic resonant current I3 flows from the coupling end 152 to the ground end 151. It can be understood that the parasitic resonant current I3 changes periodically, and in the next half-wavelength period, the parasitic resonant current I3 flows from the ground end 151 to the coupling end 152.

[0098] For further information, please refer to Fig. 9 When the antenna 10 is in the first state, the first radiating portion 110a has a first resonant current I1 in the first resonant mode. When the antenna 10 is in the first state, the parasitic radiator 150 has a parasitic resonant current I3 in the parasitic mode.

[0099] In the current half-wavelength period shown in the figure: the parasitic resonant current I3 flows from the coupling end 152 to the ground end 151, and the first resonant current I1 flows from the first end 111 to the ground point G0. The parasitic resonant current I3 flows from the coupling end 152 to the ground end 151, and the first resonant current I1 flows from the first end 111 to the ground point G0. In other words, the parasitic resonant current I3 and the first resonant current I1 both depart from the coupling gap 150a.

[0100] It can be understood that the first resonant current I1 and the parasitic resonant current I3 are periodically changed. In the next half-wavelength period: the parasitic resonant current I3 flows from the ground end 151 to the coupling end 152, and the first resonant current I1 flows from the ground point G0 to the first end 111. The parasitic resonant current I3 flows from the ground end 151 to the coupling end 152, and the first resonant current I1 flows from the ground point G0 to the first end 111. In other words, the parasitic current and the first resonant current I1 are both directed toward the coupling gap 150a.

[0101] Next, the antenna 10 provided in each embodiment of the present application is introduced in detail.

[0102] See also Fig.10 and Fig.11 , Fig.10 A schematic diagram of an antenna provided in one embodiment of the present application; Fig.11 for Fig.10 Schematic diagram of the switch assembly shown in . In this embodiment, the switch assembly 120 includes a common terminal 120a, a first switch 121, a second switch 122, a third switch 123 and a fourth switch 124. The common terminal 120a is electrically connected to the feed source S. One end of the first switch 121 is electrically connected to the common terminal 120a, and the other end of the first switch 121 is electrically connected to the first feeding point P1. One end of the second switch 122 is electrically connected to the other end of the first switch 121, and the other end of the second switch 122 is grounded. One end of the third switch 123 is electrically connected to the common terminal 120a, and the other end of the third switch 123 is electrically connected to the second feeding point P2. One end of the fourth switch 124 is electrically connected to the other end of the third switch 123, and the other end of the fourth switch 124 is grounded. When the antenna 10 is in the first state, the first switch 121 is turned on, the second switch 122 is turned off, the third switch 123 is turned off, and the fourth switch 124 is turned on. When the antenna 10 is in the second state, the first switch 121 is turned off, the second switch 122 is turned on, the third switch 123 is turned on, and the fourth switch 124 is turned off.

[0103] The common terminal 120a may be electrically connected to the feed source S in a manner that is, but not limited to, the common terminal 120a is electrically connected to the feed source S via a matching circuit M. In other words, the antenna 10 includes a matching circuit M, and the common terminal 120a is electrically connected to the feed source S via the matching circuit M. When the antenna 10 further includes a matching circuit M, the matching circuit M is used to match the output impedance of the feed source S and the input impedance of the main radiator 110. In another embodiment, the common terminal 120a is directly electrically connected to the feed source S.

[0104] In this embodiment, the switch assembly 120 further includes a first port 120b. The other end of the first switch 121 is electrically connected to the first feeding point P1, specifically, the other end of the first switch 121 is electrically connected to the first port 120b, and the first port 120b is electrically connected to the first feeding point P1.

[0105] In this embodiment, the switch assembly 120 further includes a second port 120c. The other end of the third switch 123 is electrically connected to the second feeding point P2. Specifically, the other end of the third switch 123 is electrically connected to the second port 120c, and the second port 120c is electrically connected to the second feeding point P2.

[0106] The first switch 121 can be turned on or off. Correspondingly, the second switch 122 can be turned on or off. The third switch 123 can be turned on or off. The fourth switch 124 can be turned on or off.

[0107] The antenna 10 provided in the embodiment of the present application can control the states of the first switch 121 , the second switch 122 , the third switch 123 , and the fourth switch 124 so that the antenna 10 is in the first state or the second state.

[0108] When the first switch 121 is turned on and the second switch 122 is turned off, the common terminal 120a is electrically connected to the first feeding point P1, so the feed source S is electrically connected to the first feeding point P1, stimulating the first radiating portion 110a to work so that the antenna 10 supports the target frequency band. Correspondingly, since the third switch 123 is turned off and the fourth switch 124 is turned on, the second feeding point P2 is grounded through the fourth switch 124, and the second radiating portion 110b does not work. In summary, since the feed source S is electrically connected to the first feeding point P1 via the switch assembly 120, the second feeding point P2 is grounded, and the antenna 10 is in the first state.

[0109] When the third switch 123 is turned on and the fourth switch 124 is turned off, the common terminal 120a is electrically connected to the second feeding point P2, so the feed source S is electrically connected to the second feeding point P2, stimulating the second radiating portion 110b to work so that the antenna 10 supports the target frequency band. Correspondingly, since the first switch 121 is turned off and the second switch 122 is turned on, the first feeding point P1 is grounded through the second switch 122, and the first radiating portion 110a does not work. In summary, since the feed source S is electrically connected to the second feeding point P2 via the switch assembly 120, the first feeding point P1 is grounded, and the antenna 10 is in the second state.

[0110] The switch component 120 in the antenna 10 provided in the embodiment of the present application includes a common terminal 120a, a first switch 121, a second switch 122, a third switch 123 and a fourth switch 124. By controlling the states of the first switch 121, the second switch 122, the third switch 123 and the fourth switch 124, the antenna 10 is in the first state or the antenna 10 is in the second state, so that the directional pattern of the antenna 10 when supporting the target frequency band is different, and the directional pattern of the single antenna 10 is reconfigurable. Therefore, in the communication scenario when the antenna 10 is used to communicate with other devices, the switch component 120 is controlled to select the directional pattern when the antenna 10 supports the target frequency band, thereby improving the communication experience when the antenna 10 supports the target frequency band. It can be seen that the antenna 10 provided in the embodiment of the present application has a good communication effect in the target frequency band. In addition, since the reconstruction of the radiation pattern of the target frequency band can be achieved using a single antenna 10, there is no need to use multiple antennas 10 to reconstruct the radiation pattern of the target frequency band. When the antenna 10 is applied to the electronic device 1, it is convenient to layout it in the electronic device 1 together with other components of the electronic device 1.

[0111] It should be noted that the specific structure of the switch assembly 120 provided in this embodiment is combined with the antenna 10 provided in the previous embodiment for illustration. It can be understood that the specific structure of the switch assembly 120 provided in this embodiment can be combined with the antenna 10 provided in the previous other embodiments. For example, the specific structure of the switch assembly 120 provided in the embodiment of the present application is combined with the antenna 10 including the main radiator 110 for illustration; the specific structure of the switch assembly 120 provided in the embodiment of the present application can also be combined with the antenna 10 including the main radiator 110 and the parasitic radiator 150.

[0112] Please refer again Fig.10 and Fig.11In this embodiment, the antenna 10 further includes at least one of a first tuning device 131 and a second tuning device 132. The antenna 10 further includes at least one of the first tuning device 131 and the second tuning device 132, including the following situations: the antenna 10 includes the first tuning device 131 and does not include the second tuning device 132; or the antenna 10 includes the second tuning device 132 and does not include the first tuning device 131; or the antenna 10 includes the first tuning device 131 and the second tuning device 132. In the schematic diagram of this embodiment, the antenna 10 includes the first tuning device 131 and the second tuning device 132 as an example. It can be understood that it should not be understood as a limitation on the antenna 10 provided in the embodiment of the present application. It can be understood that in the antenna 10 provided in other embodiments, the antenna 10 may not include the first tuning device 131, and may not include the second tuning device 132.

[0113] When the antenna 10 further includes a first tuning device 131 , the other end of the first switch 121 is electrically connected to the first tuning device 131 and the first feeding point P1 , and the first tuning device 131 is used to adjust the frequency of the target frequency band.

[0114] The other end of the first switch 121 electrically connects the first tuning device 131 to the first feeding point P1. In other words, one end of the first tuning device 131 is electrically connected to the other end of the first switch 121, and the other end of the first tuning device 131 is electrically connected to the first feeding point P1.

[0115] The first tuning device 131 may include but is not limited to an inductor, a capacitor, or a combination of an inductor and a capacitor.

[0116] When the antenna 10 further includes a second tuning device 132 , the other end of the third switch 123 electrically connects the second tuning device 132 to the second feeding point P2 .

[0117] The other end of the third switch 123 electrically connects the second tuning device 132 to the second feeding point P2. In other words, one end of the second tuning device 132 is electrically connected to the other end of the third switch 123, and the other end of the second tuning device 132 is electrically connected to the second feeding point P2.

[0118] The second tuning device 132 may include but is not limited to an inductor, a capacitor, or a combination of an inductor and a capacitor.

[0119] See also Fig.12 and Fig.13 , Fig.12A schematic diagram of an antenna provided in another embodiment of the present application; Fig.13 for Fig.12 Schematic diagram of the switch assembly shown in . The switch assembly 120 includes a common terminal 120a, a first switch 121, a second switch 122, a third switch 123 and a fourth switch 124. The common terminal 120a is electrically connected to the feed source S. One end of the first switch 121 is electrically connected to the common terminal 120a, and the other end of the first switch 121 is electrically connected to the first feeding point P1. One end of the second switch 122 is electrically connected to the other end of the first switch 121, and the other end of the second switch 122 is grounded. One end of the third switch 123 is electrically connected to the common terminal 120a, and the other end of the third switch 123 is electrically connected to the second feeding point P2. One end of the fourth switch 124 is electrically connected to the other end of the third switch 123, and the other end of the fourth switch 124 is grounded.

[0120] In addition, the switch assembly 120 further includes a fifth switch 125, a sixth switch 126, a seventh switch 127, and an eighth switch 128. One end of the fifth switch 125 is electrically connected to the common terminal 120a, and the other end of the fifth switch 125 is electrically connected to the first feeding point P1. One end of the sixth switch 126 is electrically connected to the other end of the fifth switch 125, and the other end of the sixth switch 126 is grounded. One end of the seventh switch 127 is electrically connected to the common terminal 120a, and the other end of the seventh switch 127 is electrically connected to the second feeding point P2. One end of the eighth switch 128 is electrically connected to the other end of the seventh switch 127, and the other end of the eighth switch 128 is grounded. When the antenna 10 is in the first state, the fifth switch 125 is turned on, the sixth switch 126 is turned off, the seventh switch 127 is turned off, and the eighth switch 128 is turned on. When the antenna 10 is in the second state, the fifth switch 125 is turned off, the sixth switch 126 is turned on, the seventh switch 127 is turned on, and the eighth switch 128 is turned off.

[0121] The switch assembly 120 further includes a first port 120b. The other end of the first switch 121 is electrically connected to the first feeding point P1. Specifically, the other end of the first switch 121 is electrically connected to the first port 120b, and the first port 120b is electrically connected to the first feeding point P1.

[0122] In this embodiment, the switch assembly 120 further includes a second port 120c. The other end of the third switch 123 is electrically connected to the second feeding point P2. Specifically, the other end of the third switch 123 is electrically connected to the second port 120c, and the second port 120c is electrically connected to the second feeding point P2.

[0123] The switch assembly 120 further includes a third port 120d. The other end of the fifth switch 125 is electrically connected to the first feeding point P1. Specifically, the other end of the fifth switch 125 is electrically connected to the third port 120d, and the third port 120d is electrically connected to the first feeding point P1.

[0124] The switch assembly 120 further includes a fourth port 120e. The other end of the seventh switch 127 is electrically connected to the second feeding point P2. Specifically, the other end of the seventh switch 127 is electrically connected to the fourth port 120e, and the fourth port 120e is electrically connected to the second feeding point P2.

[0125] When the switch assembly 120 includes a first switch 121, a second switch 122, a third switch 123, a fourth switch 124, a fifth switch 125, a sixth switch 126, a seventh switch 127, and an eighth switch 128, the first switch 121 can be turned on or off. Correspondingly, the second switch 122 can be turned on or off. The third switch 123 can be turned on or off. The fourth switch 124 can be turned on or off. The fifth switch 125 can be turned on or off. Correspondingly, the sixth switch 126 can be turned on or off. The seventh switch 127 can be turned on or off. The eighth switch 128 can be turned on or off.

[0126] The antenna 10 provided in the embodiment of the present application can control the states of the first switch 121, the second switch 122, the third switch 123, the fourth switch 124, the fifth switch 125, the sixth switch 126, the seventh switch 127 and the eighth switch 128 so that the antenna 10 is in the first state or the antenna 10 is in the second state.

[0127] In combination with the aforementioned situation that the switch component 120 of the antenna 10 includes a first switch 121, a second switch 122, a third switch 123 and a fourth switch 124, when the switch component 120 also includes a fifth switch 125, a sixth switch 126, a seventh switch 127 and an eighth switch 128, the specific situation when the antenna 10 is in the first state or in the second state is described as follows.

[0128] When the antenna 10 is in the first state: the first switch 121 is turned on, the second switch 122 is turned off, the third switch 123 is turned off, the fourth switch 124 is turned on, the fifth switch 125 is turned on, the sixth switch 126 is turned off, the seventh switch 127 is turned off, and the eighth switch 128 is turned on. Specifically, when the first switch 121 is turned on, the second switch 122 is turned off, the third switch 123 is turned off, the fourth switch 124 is turned on, the fifth switch 125 is turned on, the sixth switch 126 is turned off, the seventh switch 127 is turned off, and the eighth switch 128 is turned on, the feed source S is electrically connected to the first feeding point P1, and the first radiating portion 110a is stimulated to work, so that the antenna 10 supports the target frequency band, and accordingly, the second feeding point P2 is grounded, and the second radiating portion 110b does not work.

[0129] When the antenna 10 is in the second state: the first switch 121 is disconnected, the second switch 122 is turned on, the third switch 123 is turned on, the fourth switch 124 is disconnected, the fifth switch 125 is disconnected, the sixth switch 126 is turned on, the seventh switch 127 is turned on, and the eighth switch 128 is disconnected. Specifically, when the first switch 121 is disconnected, the second switch 122 is turned on, the third switch 123 is turned on, the fourth switch 124 is disconnected, the fifth switch 125 is disconnected, the sixth switch 126 is turned on, the seventh switch 127 is turned on, and the eighth switch 128 is disconnected, the feed source S is electrically connected to the second feeding point P2, and the second radiating portion 110b is stimulated to work, so that the antenna 10 supports the target frequency band, and accordingly, the first feeding point P1 is grounded, and the first radiating portion 110a does not work.

[0130] It can be seen that the switch component 120 in the antenna 10 provided in the embodiment of the present application includes a common terminal 120a, a first switch 121, a second switch 122, a third switch 123, a fourth switch 124, a fifth switch 125, a sixth switch 126, a seventh switch 127 and an eighth switch 128. By controlling the states of the first switch 121, the second switch 122, the third switch 123, the fourth switch 124, the fifth switch 125, the sixth switch 126, the seventh switch 127 and the eighth switch 128, the antenna 10 is in the first state or the antenna 10 is in the second state, so that the directional pattern of the antenna 10 when supporting the target frequency band is different, and the directional pattern of the single antenna 10 is reconfigurable. Therefore, in the communication scenario when the antenna 10 is used to communicate with other devices, the switch component 120 is controlled to select the directional pattern when the antenna 10 supports the target frequency band, thereby improving the communication experience when the antenna 10 supports the target frequency band. It can be seen that the antenna 10 provided in the embodiment of the present application has a good communication effect in the target frequency band. In addition, since the directional pattern of the target frequency band can be reconstructed using a single antenna 10, there is no need to use multiple antennas 10 to reconstruct the directional pattern of the target frequency band. When the antenna 10 is applied to the electronic device 1, it is convenient to layout it in the electronic device 1 together with other components of the electronic device 1.

[0131] Please refer again Fig.12 and Fig.13 In this embodiment, the antenna 10 further includes at least one of a third tuning device 133 and a fourth tuning device 134. The antenna 10 further includes at least one of the third tuning device 133 and the fourth tuning device 134, including the following cases: the antenna 10 includes the third tuning device 133 but does not include the fourth tuning device 134; or the antenna 10 includes the fourth tuning device 134 but does not include the third tuning device 133; or the antenna 10 includes the third tuning device 133 and the fourth tuning device 134.

[0132] In the schematic diagram of this embodiment, the antenna 10 includes the third tuning device 133 and the fourth tuning device 134 as an example for illustration. It can be understood that this should not be understood as a limitation on the antenna 10 provided in the embodiment of the present application. In this embodiment, the antenna 10 includes the third tuning device 133 and the fourth tuning device 134 combined with the embodiment in which the antenna 10 also includes the first tuning device 131 and the second tuning device 132 for illustration. It can be understood that this should not be understood as a limitation on the embodiment of the present application. In other embodiments, the antenna 10 includes one of the third tuning device 133 and the fourth tuning device 134 and can be combined with the antenna 10 provided in any of the previous embodiments.

[0133] It should be noted that the specific structure of the switch assembly 120 provided in this embodiment is combined with the antenna 10 provided in the previous embodiment for illustration. It can be understood that the specific structure of the switch assembly 120 provided in this embodiment can be combined with the antenna 10 provided in the previous other embodiments. For example, the specific structure of the switch assembly 120 provided in the embodiment of the present application is combined with the antenna 10 including the main radiator 110 for illustration; the specific structure of the switch assembly 120 provided in the embodiment of the present application can also be combined with the antenna 10 including the main radiator 110 and the parasitic radiator 150.

[0134] When the antenna 10 further includes a third tuning device 133 , the other end of the fifth switch 125 electrically connects the third tuning device 133 to the first feeding point P1 .

[0135] The other end of the fifth switch 125 is electrically connected to the third tuning device 133 to the first feeding point P1. In other words, one end of the third tuning device 133 is electrically connected to the other end of the fifth switch 125, and the other end of the third tuning device 133 is electrically connected to the first feeding point P1.

[0136] The third tuning device 133 may include but is not limited to an inductor, a capacitor, or a combination of an inductor and a capacitor.

[0137] When the antenna 10 further includes a fourth tuning device 134 , the other end of the seventh switch 127 electrically connects the fourth tuning device 134 to the second feeding point P2 .

[0138] The other end of the seventh switch 127 is electrically connected to the fourth tuning device 134 to the second feeding point P2. In other words, one end of the fourth tuning device 134 is electrically connected to the other end of the seventh switch 127, and the other end of the fourth tuning device 134 is electrically connected to the second feeding point P2.

[0139] The fourth tuning device 134 may include but is not limited to an inductor, a capacitor, or a combination of an inductor and a capacitor.

[0140] Next, the antenna 10 provided in one embodiment of the present application is simulated and described. In this embodiment, when performing the simulation, Fig.12 The simulation is performed by taking the antenna 10 shown as an example, and the simulation is performed by taking the target frequency band as the medium-high frequency band, the first sub-frequency band in the target frequency band as the medium frequency band, and the second sub-frequency band in the target frequency band as the high frequency band as an example.

[0141] Next, the directional patterns of the antenna 10 provided in the embodiment of the present application in the first state and the second state are simulated and analyzed.

[0142] In simulation, Fig.12 and Fig.13 The antenna 10 shown is simulated. When the antenna 10 is in the first state, the first radiating portion 110a works, and the antenna 10 can be equivalent to an IFA antenna with an opening facing left (illustrated viewing angle). When the antenna 10 is in the second state, the second radiating portion 110b works, and the antenna 10 can be equivalent to an IFA antenna with an opening facing downward (illustrated viewing angle). The simulation is performed by taking the target frequency band as the medium and high frequency band as an example. The B3 band and the B1 band in the medium frequency band are selected for simulation, and the B40 band and the B41 band in the high frequency band are selected for simulation. Among them, during the simulation, 1.75 GHz in the B3 band is selected for simulation, 1.95 GHz in the B1 band is selected for simulation, 2.35 GHz in the B40 band is selected for simulation, and 2.55 GHz in the B41 band is selected for simulation.

[0143] See also Fig.14 , Fig.15 , Fig.16 , Fig.17 , Fig.14 for Fig.12 The three-dimensional radiation pattern of the antenna in the B3 frequency band when it is in the first state; Fig.15 for Fig.12 The three-dimensional radiation pattern of the antenna in the B1 frequency band when it is in the first state shown; Fig.16 for Fig.12 The three-dimensional radiation pattern of the antenna in the B40 frequency band when it is in the first state shown; Fig.17 for Fig.12 The three-dimensional radiation pattern of the antenna in the first state in the B41 frequency band is shown. Figures 14 to 17 In each of the figures, there are two figures, among which (a) in the corresponding figure is a color figure, and (b) in the same figure is a grayscale figure of (a) in the same figure.

[0144] See also Fig.18 , Fig.19 , Fig. 20 , Fig.21 , Fig.18 for Fig.12 The two-dimensional radiation pattern of the antenna in the B3 frequency band when it is in the first state shown; Fig.19 for Fig.12 The two-dimensional radiation pattern of the antenna in the B1 frequency band when it is in the first state shown; Fig. 20 for Fig.12 The two-dimensional radiation pattern of the antenna in the B40 frequency band when it is in the first state shown; Fig.21 for Fig.12 The two-dimensional radiation pattern of the antenna in the first state in the B41 frequency band is shown. Figures 18 to 21 In each of the figures, there are two figures, among which (a) in the corresponding figure is a color figure, and (b) in the same figure is a grayscale figure of (a) in the same figure.

[0145] It should be noted that, when the antenna 10 is in the first state, the three-dimensional (3D) radiation pattern and the two-dimensional (2D) radiation pattern in the same frequency band have the same meaning. For example, when the antenna 10 is in the first state, the three-dimensional radiation pattern in the B3 frequency band and the two-dimensional radiation pattern in the B3 frequency band have the same meaning. Correspondingly, when the antenna 10 is in the first state, the three-dimensional radiation pattern in the B1 frequency band and the two-dimensional radiation pattern in the B1 frequency band have the same meaning. Correspondingly, when the antenna 10 is in the first state, the three-dimensional radiation pattern in the B40 frequency band and the two-dimensional radiation pattern in the B40 frequency band have the same meaning. Correspondingly, when the antenna 10 is in the first state, the three-dimensional radiation pattern in the B41 frequency band and the two-dimensional radiation pattern in the B41 frequency band have the same meaning.

[0146] See also Fig. 22 , Fig.23 , Fig.24 , Fig.25 , Fig. 22 for Fig.12 The three-dimensional radiation pattern of the antenna in the B3 frequency band when it is in the second state; Fig.23 for Fig.12 The three-dimensional radiation pattern of the antenna in the B1 frequency band when it is in the second state shown; Fig.24 for Fig.12 The three-dimensional radiation pattern of the antenna in the B40 frequency band when it is in the second state shown; Fig.25 for Fig.12 The three-dimensional radiation pattern of the antenna in the second state in the B41 frequency band is shown. Figure 22 to Figure 25 In each of the figures, there are two figures, among which (a) in the corresponding figure is a color figure, and (b) in the same figure is a grayscale figure of (a) in the same figure.

[0147] See also Fig.26 , Fig. 27 , Fig.28 , Fig.29 , Fig.26 for Fig.12 The two-dimensional radiation pattern of the antenna in the B3 frequency band when it is in the second state; Fig. 27 for Fig.12 The two-dimensional radiation pattern of the antenna in the B1 frequency band when it is in the second state; Fig.28 for Fig.12 The two-dimensional radiation pattern of the antenna in the B40 frequency band when it is in the second state shown; Fig.29 for Fig.12 The two-dimensional radiation pattern of the antenna in the second state in the B41 frequency band is shown. Figure 26 to Figure 29 In each of the figures, there are two figures, among which (a) in the corresponding figure is a color figure, and (b) in the same figure is a grayscale figure of (a) in the same figure.

[0148] It should be noted that, when the antenna 10 is in the second state, the three-dimensional (3D) radiation pattern and the two-dimensional (2D) radiation pattern in the same frequency band have the same meaning. For example, when the antenna 10 is in the second state, the three-dimensional radiation pattern in the B3 frequency band and the two-dimensional radiation pattern in the B3 frequency band have the same meaning. Correspondingly, when the antenna 10 is in the second state, the three-dimensional radiation pattern in the B1 frequency band and the two-dimensional radiation pattern in the B1 frequency band have the same meaning. Correspondingly, when the antenna 10 is in the second state, the three-dimensional radiation pattern in the B40 frequency band and the two-dimensional radiation pattern in the B40 frequency band have the same meaning. Correspondingly, when the antenna 10 is in the second state, the three-dimensional radiation pattern in the B41 frequency band and the two-dimensional radiation pattern in the B41 frequency band have the same meaning.

[0149] The three-dimensional directional diagrams of the antenna 10 in different states in the same frequency band can be compared; or, the two-dimensional directional diagrams of the antenna 10 in different states in the same frequency band can be compared. It can be seen that in the same frequency band, the directional diagrams of the antenna 10 in different states have changed significantly, and the directional diagrams before and after the change can form good complementarity. For example, the three-dimensional directional diagram of the antenna 10 in the first state in the B3 frequency band and the three-dimensional directional diagram of the antenna 10 in the second state in the B3 frequency band can be compared. It can be seen that in the B3 frequency band, the directional diagrams of the antenna 10 in the first state and the second state have changed significantly. In addition, in the B3 frequency band: the directional diagram of the antenna 10 in the first state and the directional diagram of the antenna 10 in the second state can form good complementarity. It can be understood that by comparing the two-dimensional directional diagram of the antenna 10 in the first state in the B3 frequency band and the two-dimensional directional diagram of the antenna 10 in the geothermal state in the B3 frequency band, it can also be obtained that in the B3 frequency band, the directional diagrams of the antenna 10 in the first state and the second state have changed significantly. In addition, by comparing the two-dimensional directional patterns of the antenna 10 in the first state and the second state, it can be seen that in the B3 frequency band: the directional pattern when the antenna 10 is in the first state and the directional pattern when the antenna 10 is in the second state can form good complementarity. It can be understood that for other frequency bands, in the same frequency band: the directional patterns of the antenna 10 in the first state and the second state are obviously different, and the directional pattern of the antenna 10 in the first state (i.e., the first directional pattern) and the directional pattern of the antenna 10 in the second state (i.e., the second directional pattern) can form good complementarity.

[0150] It can be seen that the antenna 10 provided in the embodiment of the present application can construct two antenna 10 structures with a common ground point G0 through the feed source S, the switch component 120 and the main radiator 110. Thereby, the directional pattern of the single antenna 10 can be reconfigured. For example, in one embodiment, the first radiating portion 110a and the second radiating portion 110b of the main radiator 110 are both IFA radiating portions, so the antenna 10 can be regarded as two IFA antennas. The switch component 120 can be used to make the feed source S excite one of the first radiating portion 110a and the second radiating portion 110b located at different positions, thereby realizing the directional pattern of the single antenna 10 can be reconfigured.

[0151] In addition, in the same frequency band, the directional pattern of the antenna 10 when in the first state is complementary to the directional pattern of the antenna 10 when in the second state. Specifically, in the same frequency band: the area with weaker signal strength in the directional pattern of the antenna 10 in the first state will be covered by the area with stronger signal strength in the second state of the antenna 10. Correspondingly, in the same frequency band: the area with weaker signal strength in the directional pattern of the antenna 10 in the second state will be covered by the area with stronger signal strength in the directional pattern of the antenna 10 in the first state. Therefore, the state of the switch component 120 can be adjusted so that the antenna 10 has better communication performance.

[0152] Furthermore, the embodiment of the present application also provides an electronic device 1. The electronic device 1 includes but is not limited to mobile phones, telephones, televisions, tablet computers (Pad), cameras, personal computers, laptop computers (Personal Computer, PC), vehicle-mounted devices, headphones, watches, wearable devices, base stations, vehicle-mounted radars, customer premise equipment (Customer Premise Equipment, CPE) and other devices that can send and receive electromagnetic wave signals. In this application, the electronic device 1 is taken as an example of a mobile phone, and other devices can refer to the specific description in this application. The electronic device 1 may include an antenna 10 as described in any of the previous embodiments. Please refer to the previous introduction of the antenna 10, which will not be repeated here.

[0153] In summary, the electronic device 1 provided in the embodiment of the present application includes an antenna 10, and the antenna 10 has a first state and a second state. When the antenna 10 is in the first state: the feed source S is electrically connected to the first feeding point P1 via the switch component 120, the feed source S is electrically disconnected from the second feeding point P2, and the feed source S of the antenna 10 excites the first radiating portion 110a to support the target frequency band and has a first directivity pattern. When the antenna 10 is in the second state: the feed source S is electrically connected to the second feeding point P2 via the switch component 120, and the feed source S is electrically disconnected from the first feeding point P1, and the feed source S of the antenna 10 excites the second radiating portion 110b to support the target frequency band and has a second directivity pattern. Since the first radiating portion 110a is connected to the second radiating portion 110b by bending, the first directivity pattern is different from the second directivity pattern. It can be seen that the antenna 10 provided in the embodiment of the present application can have different directional patterns when the antenna 10 supports the target frequency band through the first state and the second state of the antenna 10, thereby realizing the reconfiguration of the directional pattern of the single antenna 10. Therefore, in the communication scenario when the antenna 10 is used to communicate with other devices, the switch component 120 is controlled to realize the selection of the directional pattern when the antenna 10 supports the target frequency band, thereby improving the communication experience when the antenna 10 supports the target frequency band. It can be seen that the antenna 10 provided in the embodiment of the present application has a good communication effect in the target frequency band. In addition, since the reconstruction of the directional pattern of the target frequency band can be realized by using a single antenna 10, there is no need to use multiple antennas 10 to realize the reconstruction of the directional pattern of the target frequency band. When the antenna 10 is applied to the electronic device 1, it is convenient to be laid out in the electronic device 1 with other devices of the electronic device 1.

[0154] Please refer to Fig.30 , Fig.31 and Fig.32 , Fig.30 A three-dimensional schematic diagram of an electronic device provided in one embodiment; Fig.31 for Fig.30 A schematic diagram of a portion of the structure of an electronic device; Fig.32 for Fig.31 The electronic device 1 further includes a display screen 70, a middle frame 30 and a housing 90 (also referred to as a battery cover). The display screen 70 and the housing 90 are respectively arranged on opposite sides of the middle frame 30. The middle frame 30 includes a frame body 310 and a frame 320. In this embodiment, the frame body 310 can be used as a ground pole. The frame 320 is arranged around the periphery of the frame body 310. Among them, the main radiator 110 in the antenna 10 is formed in the frame 320.

[0155] The middle frame 30 is usually conductive, such as a metal material (such as aluminum or aluminum-magnesium alloy). In the electronic device 1, the middle frame 30 is usually used to support the display screen 70 and the housing 90. Since the middle frame 30 is conductive, the middle frame 30 can also be used as a ground electrode. The devices in the electronic device 1 can be directly or indirectly electrically connected to the middle frame 30 for grounding.

[0156] Specifically, in this embodiment, the frame 320 has the first slit 320 a and the second slit 320 b , so that a portion of the frame 320 located between the first slit 320 a and the second slit 320 b forms the main radiator 110 .

[0157] Compared with the structure in which the main radiator 110 is independent of the middle frame 30 , in this embodiment, part of the frame 320 of the middle frame 30 of the electronic device 1 is reused as the main radiator 110 , which can make the electronic device 1 smaller and easier to assemble.

[0158] In one embodiment, the first slot 320a defines the first end 111, and the second slot 320b defines the second end 112. When the antenna 10 further includes a parasitic radiator 150, the first slot 320a is the coupling slot 150a between the coupling end 152 of the parasitic radiator 150 and the first end 111 of the first radiating portion 110a.

[0159] In addition, in one embodiment, the middle frame 30 and at least one of the housing 90 and the display screen 70 also form a receiving space. The electronic device 1 also includes a battery, functional devices (the functional devices may include one or more of a camera module, a microphone, a receiver, a speaker, a face recognition module, and a fingerprint recognition module) and other devices that can realize the basic functions of the mobile phone, which are arranged in the receiving space, and will not be repeated in this embodiment. It can be understood that the above introduction to the electronic device 1 is only a description of an environment in which the antenna 10 is used, and the specific structure of the electronic device 1 should not be understood as a limitation on the antenna 10 provided in this application. In other embodiments, the electronic device 1 may also not include the display screen 70 and at least one of the housing 90.

[0160] Please continue reading Fig.31, the frame 320 includes a first frame 321 and a second frame 322 connected by bending. The length of the second frame 322 is greater than the length of the first frame 321. Correspondingly, the main radiator 110 includes a first radiating portion 110a and a second radiating portion 110b connected by bending. The first radiating portion 110a of the main radiator 110 is located in the first frame 321, and the second radiating portion 110b is located in the second frame 322. The first slit 320a is located in the first frame 321, and the second slit 320b is located in the second frame 322. It can be understood that the position of the main radiator 110 shown in this embodiment should not be understood as a limitation on the embodiment of the present application. When the antenna 10 also includes a parasitic radiator 150, the parasitic radiator 150 is located in the first frame 321.

[0161] Please continue reading Figure 30 to Figure 32 , the electronic device 1 includes a first side 1a and a second side 1b which are connected by bending. The length of the second side 1b is greater than the length of the first side 1a. When the electronic device 1 is in a vertical screen state, the first side 1a is located at the top of the electronic device 1, and the second side 1b is located at the side of the electronic device 1. The first radiating portion 110a is arranged corresponding to the first side 1a of the electronic device 1, and the second radiating portion 110b is arranged corresponding to the second side 1b of the electronic device 1. It can be seen that the first radiating portion 110a and the second radiating portion 110b are arranged corresponding to the corners (also called R corners) of the electronic device 1 when it is in a vertical screen state.

[0162] The first radiating portion 110a is arranged corresponding to the first side 1a of the electronic device 1, and the second radiating portion 110b is arranged corresponding to the second side 1b of the electronic device 1. Therefore, when the electronic device 1 is in a vertical screen state and is held by a user, the first radiating portion 110a and the second radiating portion 110b are not easily blocked by the hand of the user holding the electronic device 1, so that the antenna 10 has better antenna performance when using the first radiating portion 110a to support the target frequency band, or has better antenna performance when using the second radiating portion 110b to support the target frequency band.

[0163] In addition, when the antenna 10 further includes a parasitic radiator 150, the parasitic radiator 150 is arranged corresponding to the first side 1a, and the parasitic radiator 150 is away from the second side 1b compared to the first radiating portion 110a. It can be seen that when the electronic device 1 is in the vertical screen state and is held by the user, the parasitic radiator 150 is not easily blocked by the hand of the user holding the electronic device 1, so that when the antenna 10 is in the first state, not only can the first radiating portion 110a be used to support the target frequency band, but also the parasitic radiator 150 can be used to support part of the target frequency band, so that the antenna 10 has better antenna performance in the target frequency band.

[0164] The above is part of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. An antenna, characterized in that: The antenna comprises: A main radiator, the main radiator comprising a first radiating portion and a second radiating portion connected in a bent manner, the first radiating portion having a first end, a first feeding point and a grounding point arranged in sequence, and the second radiating portion having the grounding point, a second feeding point and a second end arranged in sequence; a switch component, one end of which is electrically connected to the first feeding point, and the other end of which is electrically connected to the second feeding point; and a feed source electrically connected to the switch assembly; The antenna has a first state and a second state. When the antenna is in the first state: the feed source is electrically connected to the first feed point via the switch component, and the feed source is electrically disconnected from the second feed point, the antenna supports the target frequency band and has a first radiation pattern; when the antenna is in the second state: the feed source is electrically connected to the second feed point via the switch component, and the feed source is electrically disconnected from the first feed point, the antenna supports the target frequency band and has a second radiation pattern, and the first radiation pattern is different from the second radiation pattern.

2. The antenna according to claim 1, characterized in that When the antenna is in the first state, the first resonance mode of the first radiation portion supports the target frequency band, wherein the first resonance mode is a quarter wavelength mode of the first radiation portion.

3. The antenna according to claim 1, characterized in that When the antenna is in the second state, the second resonance mode of the second radiation portion supports the target frequency band, wherein the second resonance mode is a quarter wavelength mode of the second radiation portion.

4. The antenna according to claim 2, characterized in that The antenna also includes: A parasitic radiator, a grounding end and a coupling end are sequentially arranged on the parasitic radiator, the grounding end is grounded, the coupling end is spaced apart from the first end by a coupling gap, and the parasitic radiator is coupled to the first radiating portion so that when the antenna is in the first state, the parasitic radiator supports a portion of the target frequency band.

5. The antenna according to claim 4, characterized in that The target frequency band includes a first sub-frequency band and a second sub-frequency band, the frequency of the first sub-frequency band is greater than the frequency of the second sub-frequency band; when the antenna is in the first state, it supports at least one of the first sub-frequency band and the second sub-frequency band, and when the antenna is in the second state, it supports at least one of the first sub-frequency band and the second sub-frequency band; the parasitic radiator is used to support the first sub-frequency band.

6. The antenna according to claim 5, characterized in that The first sub-frequency band is a high frequency band, and the second sub-frequency band is a medium frequency band.

7. The antenna according to claim 4, characterized in that When the antenna is in the first state, a parasitic mode of the parasitic radiation supports the partial frequency band in the target frequency band, and the parasitic mode is a quarter wavelength mode of the parasitic radiator.

8. The antenna according to claim 7, characterized in that When the antenna is in the first state, the first radiating portion has a first resonant current in a first resonant mode; When the antenna is in the first state, the parasitic radiator has a parasitic resonant current in the parasitic mode; The parasitic resonant current and the first resonant current are both directed toward the coupling gap; or, the parasitic resonant current and the first resonant current are both directed away from the coupling gap.

9. The antenna according to any one of claims 1 to 8, characterized in that: The switch assembly comprises: a common terminal, the common terminal being electrically connected to the feed source; a first switch, wherein one end of the first switch is electrically connected to the common end, and the other end of the first switch is electrically connected to the first feeding point; a second switch, one end of the second switch being electrically connected to the other end of the first switch, and the other end of the second switch being grounded; a third switch, one end of the third switch being electrically connected to the common end, and the other end of the third switch being electrically connected to the second feeding point; and a fourth switch, one end of the fourth switch being electrically connected to the other end of the third switch, and the other end of the fourth switch being grounded; When the antenna is in the first state, the first switch is turned on, the second switch is turned off, the third switch is turned off, and the fourth switch is turned on; When the antenna is in the second state, the first switch is off, the second switch is on, the third switch is on, and the fourth switch is off.

10. The antenna according to claim 9, characterized in that The antenna further includes at least one of a first tuning device and a second tuning device; When the antenna further includes a first tuning device, the other end of the first switch is electrically connected to the first tuning device to the first feeding point, and the first tuning device is used to adjust the frequency of the target frequency band; When the antenna further includes a second tuning device, the other end of the third switch electrically connects the second tuning device to the second feeding point.

11. The antenna according to claim 9, characterized in that The switch assembly further comprises: a fifth switch, one end of the fifth switch being electrically connected to the common end, and the other end of the fifth switch being electrically connected to the first feeding point; a sixth switch, one end of the sixth switch being electrically connected to the other end of the fifth switch, and the other end of the sixth switch being grounded; a seventh switch, one end of the seventh switch being electrically connected to the common end, and the other end of the seventh switch being electrically connected to the second feeding point; and an eighth switch, one end of the eighth switch being electrically connected to the other end of the seventh switch, and the other end of the eighth switch being grounded; When the antenna is in the first state, the fifth switch is turned on, the sixth switch is turned off, the seventh switch is turned off, and the eighth switch is turned on; When the antenna is in the second state, the fifth switch is turned off, the sixth switch is turned on, the seventh switch is turned on, and the eighth switch is turned off.

12. The antenna according to claim 11, characterized in that The antenna further comprises at least one of a third tuning device and a fourth tuning device; When the antenna further includes a third tuning device, the other end of the fifth switch electrically connects the third tuning device to the first feeding point; When the antenna further includes a fourth tuning device, the other end of the seventh switch electrically connects the fourth tuning device to the second feeding point.

13. The antenna according to claim 1, wherein: The target frequency band includes a medium-high frequency band, a WiFi 2.4G band, or an N78 band.

14. An electronic device, characterized in that: The electronic device comprises the antenna according to any one of claims 1-13.

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