Antenna assemblies and foldable electronic devices

Abstract

This application provides an antenna assembly and a foldable electronic device. The antenna assembly includes a ground plane, a radiator, and a feed source. The ground plane includes a first ground portion and a second ground portion that are bent and electrically connected along a folding axis. The first ground portion has a first side facing away from the folding axis and a second side that is bent and connected to the first side and located between the first side and the folding axis. The radiator is disposed corresponding to the second side and includes a ground end, a free end, and a feed point. The ground end is electrically connected to the first ground portion for grounding, and the free end faces away from the folding axis relative to the ground end. The feed source is used to generate an excitation signal and is electrically connected to the feed point, so that the antenna assembly supports the target frequency band for communication with a satellite. When the antenna assembly supports the target frequency band, the maximum radiation pattern faces upward, and the upper hemisphere occupies a larger proportion. Therefore, when the antenna assembly uses the target frequency band to communicate with a satellite, the communication effect is better.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an antenna assembly and a foldable electronic device. Background Technology

[0002] With technological advancements, mobile phones and other electronic devices with communication capabilities are becoming increasingly widespread and powerful. These devices typically include antenna components to enable their communication functions. However, in related technologies, the communication performance of antenna components in electronic devices when communicating with satellites is poor. Summary of the Invention

[0003] In a first aspect, this application provides an antenna assembly, the antenna assembly comprising: The floor includes a first grounding portion and a second grounding portion that are bent and connected along a folding axis and electrically connected; the first grounding portion has a first side away from the folding axis and a second side that is bent and connected to the first side and located between the first side and the folding axis. A radiator, disposed corresponding to the second side, includes a grounding end, a free end, and a feed point. The grounding end is electrically connected to the first grounding portion for grounding, and the free end is located away from the folding axis L0 relative to the grounding end. A feed source, used to generate an excitation signal, is electrically connected to the feed point so that the antenna assembly supports the target frequency band for communication with a satellite.

[0004] Secondly, this application provides an antenna assembly, the antenna assembly comprising: The floor includes a first grounding portion and a second grounding portion that are bent and connected along a folding axis and electrically connected; the first grounding portion has a first side away from the folding axis and a second side that is bent and connected to the first side and located between the first side and the folding axis. A radiator, positioned corresponding to the second side, has a grounding terminal and a feed point. The grounding terminal is electrically connected to the first grounding portion for grounding. The free end is located away from the folding axis relative to the grounding terminal. A feed source is provided to generate an excitation signal. The feed source is electrically connected to the feed point to excite the ground plane to generate a half-wavelength mode current along the extension direction of the second side. The ground terminal is electrically connected to the connection point of the first ground portion located in the current-strong point region of the ground plane, wherein the current-strong point region includes the point of maximum current in the ground plane.

[0005] Thirdly, this application provides a foldable electronic device, the electronic device including an antenna assembly as described in the first aspect, or the electronic device including an antenna assembly as described in the second aspect.

[0006] Fourthly, this application provides a foldable electronic device, the electronic device comprising: The display screen includes a first display section and a second display section that are relatively flexible; The shielding component includes a first shielding portion and a second shielding portion that are bendable relative to each other. The first shielding portion is disposed on one side of the first display portion, and the second shielding portion is disposed on one side of the second display portion. The middle frame includes a first frame portion and a second frame portion that can be bent relative to each other. The first frame portion is disposed on the side of the first shielding portion away from the first display portion, and the second frame portion is disposed on the side of the second shielding portion away from the second display portion. Wherein, the middle frame is the ground plane of the antenna assembly, the first frame portion is the first grounding portion, and the second frame portion is the second grounding portion; or, the shielding component is the ground plane of the antenna assembly, the first shielding portion is the first grounding portion, and the second shielding portion is the second grounding portion; or, the middle frame is electrically connected to the shielding component, the first frame portion and the first shielding portion together constitute the first grounding portion, and the second frame portion and the second shielding portion together constitute the second grounding portion.

[0007] In summary, the antenna assembly provided in this application, because the free end of the radiator is further away from the folding axis than the ground end, allows the excitation signal to excite a half-wavelength mode current along the extension direction of the second side on the radiator and the ground plane. Furthermore, the current amplitude near the second side and along its extension direction is larger, contributing significantly to the radiation pattern of the electromagnetic wave signal in the preset frequency band. Additionally, the current direction near the second side and along its extension direction is consistent, meaning the phase of this current is essentially in the same direction. This allows the antenna assembly to have a maximum radiation pattern pointing upwards when supporting the target frequency band, with a larger proportion of the upper hemisphere. Therefore, when the antenna assembly communicates with a satellite using the target frequency band, the communication effect is better. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the antenna assembly provided in the first embodiment of the related technology; Figure 2 for Figure 1 A schematic diagram of the current in the ground plane of the antenna assembly provided in the diagram; Figure 3 for Figure 1 The antenna components provided in the document support the radiation pattern when the target frequency band is supported; Figure 4 A schematic diagram of an antenna assembly provided for the second embodiment of the related technology; Figure 5 A schematic diagram of an antenna assembly provided according to one embodiment of this application; Figure 6 for Figure 5 A schematic diagram of the ground current of the antenna assembly shown; Figure 7 for Figure 5 The antenna configuration shown supports the radiation pattern of the target frequency band. Figure 8 for Figure 5 A schematic diagram showing the distance between the grounding point and the midpoint of the top edge of the ground plane in the antenna assembly shown; Figure 9 A schematic diagram showing the dimensions of the floor along the extension direction of the second side in different states of the floor; Figure 10 A circuit block diagram of an antenna assembly provided in one embodiment of this application; Figure 11 A circuit block diagram of an antenna assembly provided for another embodiment of this application; Figure 12 A schematic diagram of an antenna assembly provided for another embodiment of this application; Figure 13 A schematic diagram showing the overall system efficiency of each antenna component in the folded state; Figure 14 For this application Figure 5 The diagram shows the radiation efficiency of the antenna assembly in both ideal and actual states when it is in the deployed state. Figure 15 The radiation pattern when the antenna assembly is in the deployed state and supports the GPS L5 and GPS L1 bands; Figure 16 for Figure 9 (b) shows a schematic diagram of the radiation efficiency of the antenna assembly in the ideal and actual states when it is in a folded state. Figure 17 The radiation pattern for supporting GPS L5 and GPS L1 bands when the antenna assembly is in a folded state; Figure 18A perspective view of an electronic device provided in an embodiment of this application in an unfolded state; Figure 19 In one implementation method Figure 18 An exploded three-dimensional diagram of the electronic device shown. Figure 20 In another implementation Figure 18 An exploded three-dimensional diagram of the electronic device shown. Figure 21 In another implementation Figure 18 An exploded three-dimensional diagram of the electronic device shown. Figure 22 In another implementation method Figure 18 The diagram shows a three-dimensional exploded view of the electronic device. Detailed Implementation

[0009] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Furthermore, the reference to "embodiment" or "implementation" herein means that a specific feature, structure, or characteristic described in connection with an embodiment or implementation can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0010] Before introducing the antenna assembly 10 provided in this application, the antenna assembly 10 in related technologies (not prior art) will be described and introduced first. In a related technology embodiment, for a non-foldable antenna assembly 10, the radiator 120 in the antenna assembly 10 is usually designed at the upper left corner of the floor 110, so that the antenna assembly 10 has relatively good communication performance in the target frequency band for communication with satellites. With the development of technology, foldable electronic devices 1 have emerged. In foldable electronic devices 1, the antenna assembly 10 is still designed according to the above position, as detailed below. Please refer to... Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the antenna assembly provided in the first embodiment of the related technology; Figure 2 for Figure 1 A schematic diagram of the current in the ground plane 110 of the antenna assembly provided in the diagram; Figure 3 for Figure 1The antenna assembly provided supports the radiation pattern of the target frequency band. The antenna assembly 10 includes a ground plane 110, a radiator 120, and a feed S. The ground plane 110 includes a first ground portion 111 and a second ground portion 112 that are bent and connected along the folding axis L0 and electrically connected. The first ground portion 111 has a first side 111a away from the folding axis L0 and a second side 111b that is bent and connected to the first side 111a and located between the first side 111a and the folding axis L0. The radiator 120 is disposed corresponding to the second side 111b, and the radiator 120 includes a ground end 121, a free end 122, and a feed point P. The ground end 121 is electrically connected to the first ground portion 111 for grounding, and is also electrically connected to the connection point of the first side 111a and the second side 111b (top left corner of the figure). The free end 122 is closer to the folding axis L0 than the ground end 121. The feed source S is used to generate an excitation signal. The feed source S is electrically connected to the feed point P so that the antenna assembly 10 supports the target frequency band for communication with the satellite.

[0011] However, due to the relevant technologies Figure 3 It is evident that the radiation pattern of the antenna assembly 10 in the related technology, when supporting the target frequency band, faces to the right, not upwards. Therefore, applying the position of the radiator 120 of the non-foldable antenna assembly 10 in the related technology to the foldable antenna assembly 10 is not applicable. The communication performance is poor when the antenna assembly 10 communicates with a satellite using the target frequency band.

[0012] The antenna assembly 10 (not prior art) provided in another related technology is described below. Please refer to it as well. Figure 4 , Figure 4 This is a schematic diagram of an antenna assembly provided in Embodiment 2 of the related art. For ease of description, this embodiment is referred to as Embodiment 2 of the related art. The structure of the antenna assembly 10 provided in Embodiment 2 of the related art is similar to... Figure 1 The structure of the antenna assembly provided in the first embodiment of the related technology is basically the same, the difference being that... Figure 1 In the first embodiment, the grounding terminal 121 is electrically connected to the connection point between the first side 111a and the second side 111b (the upper left corner of the figure); while in the second embodiment of the related technology, the grounding terminal 121 is electrically connected to the middle or approximately the middle of the second side 111b.

[0013] Please see Figure 5 , Figure 6 and Figure 7 , Figure 5 A schematic diagram of an antenna assembly provided according to one embodiment of this application; Figure 6 for Figure 5 A schematic diagram of the ground current of the antenna assembly shown; Figure 7 for Figure 5 The antenna assembly shown supports the radiation pattern of the target frequency band. The antenna assembly 10 includes a ground plane 110, a radiator 120, and a feed source S. The ground plane 110 includes a first ground portion 111 and a second ground portion 112, which are bent and electrically connected along a folding axis L0. The first ground portion 111 has a first side 111a away from the folding axis L0 and a second side 111b bent and connected to the first side 111a and located between the first side 111a and the folding axis L0. The radiator 120 is disposed corresponding to the second side 111b and includes a ground terminal 121, a free end 122, and a feed point P. The ground terminal 121 is electrically connected to the first ground portion 111 for grounding, and the free end 122 is away from the folding axis L0 relative to the ground terminal 121. The feed source S is used to generate an excitation signal and is electrically connected to the feed point P, enabling the antenna assembly 10 to support the target frequency band for communication with a satellite.

[0014] The floor 110 is typically a large sheet of metal or alloy, when the antenna assembly 10 is applied to electronic device 1 (see [link]). Figure 18 In this case, the floor 110 can be at least one of the middle frame 40 of the electronic device 1 and the shielding component 30 of the display screen 20, which will be described in detail later when discussing the electronic device 1.

[0015] The floor 110 can be bent along the folding axis L0. The floor 110 has an unfolded state in which the first grounding part 111 is unfolded relative to the second grounding part 112, and a folded state in which the first grounding part 111 is folded relative to the second grounding part 112.

[0016] In one embodiment, when the floor 110 is in the unfolded state, the first grounding portion 111 and the second grounding portion 112 are parallel or approximately parallel. When the floor 110 is in the unfolded state, the first grounding portion 111 and the second grounding portion 112 are coplanar or approximately coplanar.

[0017] The first grounding part 111 can be directly bent and electrically connected to the second grounding part 112; or, the first grounding part 111 can be bent and electrically connected to the second grounding part 112 through a rotating shaft 113. This application does not limit this.

[0018] In this embodiment, the first grounding portion 111 and the second grounding portion 112 are symmetrically arranged about the folding axis L0. In other embodiments, the first grounding portion 111 and the second grounding portion 112 may not be symmetrically arranged about the folding axis L0, and this application does not limit this.

[0019] The first side 111a of the first grounding part 111 is bent and connected to the second side 111b. In the schematic diagram of this embodiment, the length of the first side 111a is greater than the length of the second side 111b. In other words, the first side 111a is the long side of the first grounding part 111, and the second side 111b is the short side of the first grounding part 111.

[0020] The radiator 120 is provided corresponding to the second side 111b, meaning that the radiator 120 is provided on one side of the second side 111b and is adjacent to the second side 111b.

[0021] The radiator 120 can be, but is not limited to, a laser direct-structuring (LDS) radiator, a flexible printed circuit (FPC) radiator, a printed direct-structuring (PDS) radiator, or a metal dendrite radiator. When the antenna assembly 10 is applied to electronic device 1 (see [link to electronic device]), Figure 18 In this case, the radiator 120 can be a mechanical design antenna (MDA) radiator designed using the embedded metal of the electronic device 1 itself. For example, the radiator 120 can be an antenna radiator designed using the plastic and metal floor 110 of the electronic device 1. In addition, the radiator 120 can also be a metal frame antenna radiator designed with a metal mid-frame 40.

[0022] Understandably, this application does not specifically limit the shape, structure, or material of the radiator 120. The shape of the radiator 120 includes, but is not limited to, bent, straight, L-shaped, sheet-like, rod-like, coated, or thin film shapes. When the radiator 120 is strip-shaped, this application does not limit the extension trajectory of the radiator 120; therefore, the radiator 120 can extend in a straight line, curve, or with multiple bends. The aforementioned radiator 120 can be a line of uniform width on its extension trajectory, or it can be an irregular shape with varying widths, such as a gradually changing width or a widened area.

[0023] The radiator 120 has two ends, one of which is grounded, and the grounded end is called the ground end 121. The ungrounded end is called the free end 122. The feed point P is located at the free end 122 or between the free end 122 and the ground end 121.

[0024] In this embodiment, the feed source S is used to generate an excitation signal. The feed source S is electrically connected to the feed point P. The excitation signal is transmitted to the radiator 120 via the feed source S and the feed point P. Since the free end 122 of the radiator 120 is away from the folding axis L0 relative to the ground end 121, the excitation signal can excite a half-wavelength mode current (also called a transverse current) on the radiator 120 and the floor 110 along the extension direction of the second side 111b. The current strength point of the radiator 120 matches the current strength point region 110a of the floor 110, that is, the current strength point of the radiator 120 is located within the current strength point region 110a of the floor 110, wherein the current strength point region 110a includes the region of the point with the largest current in the floor 110. The term "current strength point" for radiator 120 refers to the point in radiator 120 where the current is greatest. In this embodiment, the current strength point of radiator 120 is located at the connection point between the ground terminal 121 of radiator 120 and the first ground portion 111. The current strength point of ground 110 refers to the point in ground 110 where the current is greatest. The location of the current strength point of ground 110 can be obtained by simulating the antenna assembly 10 supporting the target frequency band. For the half-wavelength mode current excited by the excitation signal along the extension direction of the second side 111b on ground 110, the point with the greatest current on ground 110 is located at the midpoint of the top edge 110b of ground 110. The top edge 110b of ground 110 refers to the edge extending along the extension direction of the second side 111b and including the second side 111b when ground 110 is in the deployed state. In other words, the floor 110 has a top edge 110b extending along the extension direction of the second side 111b and including the second side 111b. When the floor 110 is in the unfolded state, the midpoint of the top edge 110b is the point of maximum current on the floor 110. From the illustrated perspective, when the floor 110 includes a first grounding portion 111, a second grounding portion 112, and a rotating shaft 113, the top edge 110b includes the edge of the first grounding portion 111 located at the top (i.e., the second side 111b), the edge at the top of the second grounding portion 112, and the edge at the top of the rotating shaft 113.

[0025] It should be noted that when the antenna assembly 10 supports the target frequency band, the radiator 120 and the floor 110 jointly support the target frequency band.

[0026] Please see Figure 6 and Figure 7 ,Depend on Figure 6As can be seen, the antenna assembly 10 provided in this embodiment excites a half-wavelength mode current in the ground plane 110. The current amplitude is larger near the second side 111b and along its extension direction, contributing significantly to the radiation pattern of the electromagnetic wave signal in the preset frequency band. Furthermore, the currents near the second side 111b and along its extension direction are in the same direction, meaning that the phases of these currents are essentially in the same direction. Please refer to... Figure 7 The antenna assembly 10 provided in this embodiment has a maximum radiation pattern that faces upwards, and the upper hemisphere accounts for a large proportion (more than 60% in this embodiment). Therefore, when the antenna assembly 10 communicates with the satellite using the target frequency band, the communication effect is better.

[0027] The antenna assembly 10 communicates with the satellite using the target frequency band. This communication can be, but is not limited to, communicating with the satellite for positioning, transmitting messages with other antenna assemblies 10 via the satellite, or conducting voice calls with other antenna assemblies 10 via the satellite, etc., and is not limited thereto. Because the antenna assembly 10 can communicate with the satellite using the target frequency band, it is also referred to as a satellite antenna.

[0028] In summary, the antenna assembly 10 provided in this application has the following characteristics: Since the free end 122 of the radiator 120 is further away from the folding axis L0 than the ground end 121, the excitation signal can excite a half-wavelength mode current along the extension direction of the second side 111b on the radiator 120 and the ground plane 110. Furthermore, the current amplitude near the second side 111b and along its extension direction is larger, contributing significantly to the radiation pattern of the electromagnetic wave signal in the preset frequency band. Additionally, the current direction near the second side 111b and along its extension direction is consistent, meaning the phase of this current is essentially in the same direction. This allows the antenna assembly 10 to have a maximum radiation pattern pointing upwards when supporting the target frequency band, with a larger proportion of the upper hemisphere. Therefore, when the antenna assembly 10 communicates with a satellite using the target frequency band, the communication effect is better. Furthermore, when the antenna assembly 10 supports the target frequency band, it can utilize not only the radiator 120 but also the ground plane 110. When the antenna assembly 10 is applied to an electronic device, the ground plane 110 can also reuse some components within the electronic device, thereby enabling the antenna assembly 10 to have a smaller volume and facilitating its assembly and layout with other devices within the electronic device.

[0029] The relationship between the grounding point Q, where the grounding terminal 121 is electrically connected to the first grounding part 111, and the midpoint of the top edge 110b of the floor 110 will be explained below. Please refer to [link / reference]. Figure 8 , Figure 8 for Figure 5 The diagram shows the spacing between the grounding point and the midpoint of the top edge 110b of the ground plane in the antenna assembly shown. The spacing d between the grounding point Q of the first grounding part 111, which is electrically connected to the grounding terminal 121, and the midpoint O of the top edge 110b of the ground plane 110, satisfies the following: ,in, The wavelength of the electromagnetic wave signal in the target frequency band is given. The floor 110 has an unfolded state in which the first grounding part 111 is unfolded relative to the second grounding part 112, and a folded state in which the first grounding part 111 is folded relative to the second grounding part 112; when the floor 110 is in the unfolded state, the floor 110 has a top edge 110b extending along the extension direction of the second side 111b and including the second side 111b; the connection point Q of the grounding terminal 121 electrically connected to the first grounding part 111 is located on the top edge 110b, and the distance d between the connection point Q and the midpoint O of the top edge 110b satisfies: ,in, The wavelength of the electromagnetic wave signal in the target frequency band is denoted as .

[0030] In this embodiment, the grounding point Q is defined as the center point where the grounding terminal 121 is electrically connected to the first grounding portion 111. In this embodiment, the first grounding portion 111 and the second grounding portion 112 are illustrated as symmetrical about the folding axis L0. In other embodiments, the first grounding portion 111 and the second grounding portion 112 may not be symmetrical about the folding axis L0. When the first grounding portion 111 and the second grounding portion 112 are symmetrical about the folding axis L0, the center O of the top edge 110b is located on the folding axis L0.

[0031] The d can be, but is not limited to, 0. , , "etc." can also be any value other than those given in the examples above, as long as it satisfies the following conditions. That's all.

[0032] When the distance d between the grounding point Q of the first grounding part 111 and the midpoint O of the top edge 110b, which is electrically connected to the grounding terminal 121, satisfies: At that time, the current strong point of the antenna assembly 10 and the current strong point region 110a of the ground 110 (see Figure 6The current strength of the radiator 120 (i.e., the grounding point Q) is well-matched, meaning the current strength region 110a of the ground plane 110 is located within the current strength region 110a of the ground plane 110. Thus, the antenna assembly 10 provided in this embodiment can effectively excite the half-wavelength mode current of the ground plane 110. The current amplitude near the second side 111b and along its extension direction is relatively large, contributing significantly to the radiation pattern of the electromagnetic wave signal in the preset frequency band. Furthermore, the current near the second side 111b and along its extension direction is in the same direction, meaning the phase of this current is essentially in the same direction. Please refer to... Figure 7 In this embodiment, the antenna assembly 10 has a maximum radiation pattern pointing upwards, and the upper hemisphere accounts for a large proportion (over 60% in this embodiment). Therefore, when the antenna assembly 10 communicates with a satellite using the target frequency band, the communication effect is better. Furthermore, since the connection point Q is located in the current-strong region 110a and the top edge 110b, compared to other locations where the connection point Q is located in the current-strong region 110a, the antenna assembly 10 has better radiation efficiency when supporting the preset frequency band.

[0033] Please continue reading. Figure 5 The floor 110 also includes a pivot 113. The pivot 113 is disposed between the first grounding part 111 and the second grounding part 112. The first grounding part 111 and the second grounding part 112 are connected and electrically connected by bending through the pivot 113. The pivot 113 has the folding axis L0. The center O of the top edge 110b is located at the folding axis L0, and the connection point Q is located at the second edge 111b.

[0034] The pivot 113 is conductive and can be made of metal or alloy. The first grounding portion 111 and the second grounding portion 112 are connected and electrically connected by bending through the pivot 113, thereby giving the floor 110 a large area. Furthermore, the first grounding portion 111 and the second grounding portion 112 can be unfolded relative to each other through the pivot 113, and the first grounding portion 111 and the second grounding portion 112 can be folded relative to each other through the pivot 113, thus facilitating the application of the antenna assembly 10 in a foldable electronic device 1.

[0035] In this embodiment, the first grounding portion 111 and the second grounding portion 112 are symmetrically arranged about the rotation axis 113. Therefore, the center of the top edge 110b is located on the folding axis L0, and the connection point Q is located on the second edge 111b, which allows the antenna assembly 10 to have better radiation efficiency when supporting the preset frequency band.

[0036] Please see Figure 9 , Figure 9 This is a schematic diagram showing the dimensions of the floor along the extension direction of the second side in different states of the floor. Figure 9 (a) is a schematic diagram showing the dimensions of the floor along the extension direction of the second side when the floor is in the unfolded state; Figure 9 (b) is a schematic diagram showing the dimensions of the floor along the extension direction of the second side when the floor is in a folded state. In this embodiment, the extension direction of the first side 111a is taken as the first direction D1, and the extension direction of the second side 111b is taken as the second direction D2 for illustration. Figure 9 (b) in the middle is equivalent to in Figure 9 Based on the floor 110 shown in (a), the second grounding portion 112 covers the first grounding portion 111. The floor 110 has an unfolded state where the first grounding portion 111 is unfolded relative to the second grounding portion 112, and a folded state where the first grounding portion 111 is folded relative to the second grounding portion 112. When the floor 110 is in the unfolded state, the dimensions of the floor 110 in the extension direction along the second side 111b (i.e., the second direction D2) are... satisfy When the floor 110 is in a folded state, the dimensions of the floor 110 in the extension direction along the second side 111b (i.e., the second direction D2) are... satisfy ,and .

[0037] For the first grounding portion 111, the first side 111a is the long side of the first grounding portion 111, and the second side 111b is the short side of the first grounding portion 111. When the floor 110 is in the unfolded state, the dimension of the floor 110 along the extension direction of the second side 111b is... satisfy When the floor 110 is in a folded state, the dimensions of the floor 110 along the extension direction of the second side 111b are... satisfy This allows for better excitation of the half-wavelength mode current of the floor 110. The current amplitude near the second side 111b and along its extension direction is larger, contributing significantly to the radiation pattern of the electromagnetic wave signal in the preset frequency band. Furthermore, the current near the second side 111b and along its extension direction is in the same direction, meaning the phase of this generated current is essentially in the same direction. Please refer to [link / reference]. Figure 7The antenna assembly 10 provided in this embodiment has a maximum radiation pattern that faces upwards, and the upper hemisphere accounts for a large proportion (more than 60% in this embodiment). Therefore, when the antenna assembly 10 communicates with the satellite using the target frequency band, the communication effect is better.

[0038] Understandably, in other embodiments, when the floor 110 is in the unfolded state, the dimensions of the floor 110 in the extension direction along the second side 111b are... It is also possible not to meet the requirements When the floor 110 is in a folded state, the dimensions of the floor 110 along the extension direction of the second side 111b are... Not satisfied It is sufficient to excite a current in half-wavelength mode of the floor 110.

[0039] Furthermore, please refer to the following: Figure 10 , Figure 10 This is a circuit block diagram of an antenna assembly provided in one embodiment of this application. The excitation signal generated by the feed source S includes a first sub-excitation signal and a second sub-excitation signal, and the target frequency band includes a first sub-frequency band and a second sub-frequency band. The antenna assembly 10 also includes a resonant inductor L and a resonant capacitor C. One end of the resonant inductor L is electrically connected to the feed source S, and one end of the resonant capacitor C is electrically connected to the other end of the resonant inductor L. The other end of the resonant capacitor C is electrically connected to the feed point P. The resonant inductor L and the resonant capacitor C resonate in the first sub-frequency band, and the feed source S is used to couple the second sub-frequency band to the feed point P through the resonant inductor L. The first sub-excitation signal is used to enable the antenna assembly 10 to support the first sub-frequency band, and the second sub-excitation signal is used to enable the antenna assembly 10 to support the second sub-frequency band, wherein the resonant frequency of the first sub-frequency band is greater than the resonant frequency of the second sub-frequency band.

[0040] One end of the resonant inductor L is electrically connected to the feed source S, and one end of the resonant capacitor C is electrically connected to the other end of the resonant inductor L. The other end of the resonant capacitor C is electrically connected to the feed point P. In other words, the feed source S is sequentially connected to the resonant inductor L, the resonant capacitor C, and the feed point P.

[0041] The resonant inductor L and the resonant capacitor C resonate in the first sub-frequency band. Therefore, for the first sub-excitation signal supporting the first sub-frequency band, the first sub-excitation signal is equivalent to being directly fed to the feed point P; for the second sub-excitation signal supporting the second sub-frequency band, the second sub-excitation signal is equivalent to being coupled to the feed point P.

[0042] Understandably, in this embodiment, the resonant inductor L and the resonant capacitor C resonate in the first sub-frequency band; in other embodiments, the resonant inductor L and the resonant capacitor C resonate near the first sub-frequency band.

[0043] The antenna assembly 10 provided in this embodiment also includes a resonant inductor L and a resonant capacitor C, thereby enabling the antenna assembly 10 to simultaneously support the first sub-band and the second sub-band, thus giving the antenna assembly 10 better communication performance.

[0044] In one embodiment, the first sub-band is the GPS L1 band, and the second sub-band is the GPS L5 band.

[0045] Please refer to the following: Figure 11 , Figure 11 This is a circuit block diagram of an antenna assembly provided in another embodiment of this application. The excitation signal generated by the feed source S includes a first sub-excitation signal and a second sub-excitation signal, and the target frequency band includes a first sub-frequency band and a second sub-frequency band. The antenna assembly 10 also includes a resonant inductor L and a resonant capacitor C. One end of the resonant inductor L is electrically connected to the feed source S, and one end of the resonant capacitor C is electrically connected to the other end of the resonant inductor L. The other end of the resonant capacitor C is electrically connected to the feed point P. The resonant inductor L and the resonant capacitor C resonate in the first sub-frequency band, and the feed source S is used to couple the second sub-frequency band to the feed point P through the resonant inductor L. The first sub-excitation signal is used to enable the antenna assembly 10 to support the first sub-frequency band, and the second sub-excitation signal is used to enable the antenna assembly 10 to support the second sub-frequency band, wherein the resonant frequency of the first sub-frequency band is greater than the resonant frequency of the second sub-frequency band.

[0046] In addition, the antenna assembly 10 also includes a first matching circuit M1 and a second matching circuit M2. One end of the first matching circuit M1 is electrically connected to the feed point P, and the other end of the first matching circuit M1 is grounded. One end of the second matching circuit M2 is electrically connected to the resonant inductor L which is electrically connected to the feed source S, and the other end of the second matching circuit M2 is grounded.

[0047] The first matching circuit M1 can adjust the electrical length of the radiator 120. The first matching circuit M1 may include one or more of the following: a capacitor, an inductor, a capacitor and an inductor in parallel, a capacitor and an inductor in series, etc. The second matching circuit M2 is used for impedance tuning. The second matching circuit M2 may include one or more of the following: a capacitor, an inductor, a capacitor and an inductor in parallel, a capacitor and an inductor in series, etc.

[0048] The antenna assembly 10 further includes a first matching circuit M1 and a second matching circuit M2, which can tune the target frequency band supported by the antenna assembly 10 so that the antenna assembly 10 has better communication performance in the target frequency band.

[0049] Please continue to refer to this as well. Figure 12 , Figure 6 and Figure 7 , Figure 12 This is a schematic diagram of an antenna assembly provided according to another embodiment of this application. This application also provides an antenna assembly 10, which includes a ground plane 110, a radiator 120, and a feed source S. The ground plane 110 includes a first ground portion 111 and a second ground portion 112 that are bent and connected along a folding axis L0 and electrically connected. The first ground portion 111 has a first side 111a away from the folding axis L0 and a second side 111b that is bent and connected to the first side 111a and located between the first side 111a and the folding axis L0. The radiator 120 is disposed corresponding to the second side 111b, and the radiator 120 has a grounding end 121, a free end 122, and a feed point P. The grounding end 121 is electrically connected to the first ground portion 111 for grounding. The free end 122 is away from the folding axis L0 compared to the grounding end 121. The feed source S is used to generate an excitation signal for the target frequency band. The feed source S is electrically connected to the feed point P to excite the ground plane 110 to generate a half-wavelength mode current along the extension direction of the second side 111b. The current strong point of the antenna assembly 10 is located in the current strong point region 110a of the ground plane 110. The connection point Q of the ground terminal 121 electrically connected to the first ground part 111 is located in the current strong point region 110a of the ground plane 110.

[0050] In this embodiment, the feed source S is used to generate an excitation signal. The feed source S is electrically connected to the feed point P. The excitation signal is transmitted to the radiator 120 via the feed source S and the feed point P. Since the free end 122 of the radiator 120 is away from the folding axis L0 relative to the ground end 121, the excitation signal can excite a half-wavelength mode current (also called a transverse current) on the radiator 120 and the floor 110 along the extension direction of the second side 111b. The current strength point of the radiator 120 matches the current strength point region 110a of the floor 110, that is, the current strength point of the radiator 120 is located within the current strength point region 110a of the floor 110, wherein the current strength point region 110a includes the region of the point with the largest current in the floor 110. The term "current strength point" for radiator 120 refers to the point in radiator 120 where the current is greatest. In this embodiment, the current strength point of radiator 120 is located at the connection point between the ground terminal 121 of radiator 120 and the first ground portion 111. The current strength point of ground 110 refers to the point in ground 110 where the current is greatest. The location of the current strength point of ground 110 can be obtained by simulating the antenna assembly 10 supporting the target frequency band. For the half-wavelength mode current excited by the excitation signal along the extension direction of the second side 111b on ground 110, the point with the greatest current on ground 110 is located at the midpoint of the top edge 110b of ground 110. The top edge 110b of ground 110 refers to the edge extending along the extension direction of the second side 111b and including the second side 111b when ground 110 is in the deployed state. In other words, the floor 110 has a top edge 110b that extends along the extension direction of the second side 111b and includes the second side 111b. The midpoint of the floor 110 when it is in the unfolded state is the point where the current is maximum on the floor 110.

[0051] Please see Figure 6 and Figure 7 ,Depend on Figure 6 As can be seen, the antenna assembly 10 provided in this embodiment excites a half-wavelength mode current in the ground plane 110. The current amplitude is larger near the second side 111b and along its extension direction, contributing significantly to the radiation pattern of the electromagnetic wave signal in the preset frequency band. Furthermore, the currents near the second side 111b and along its extension direction are in the same direction, meaning that the phases of these currents are essentially in the same direction. Please refer to... Figure 7The antenna assembly 10 provided in this embodiment has a maximum radiation pattern that faces upwards, and the upper hemisphere accounts for a large proportion (more than 60% in this embodiment). Therefore, when the antenna assembly 10 communicates with the satellite using the target frequency band, the communication effect is better.

[0052] The antenna assembly 10 communicates with the satellite using the target frequency band. This communication can be, but is not limited to, communicating with the satellite for positioning, transmitting messages with other antenna assemblies 10 via the satellite, or making voice calls with other antenna assemblies 10 via the satellite. No further limitations are specified here.

[0053] In summary, the antenna assembly 10 provided in this application has the following characteristics: Since the free end 122 of the radiator 120 is further away from the folding axis L0 than the ground end 121, the excitation signal can excite a half-wavelength mode current along the extension direction of the second side 111b on the radiator 120 and the ground plane 110. Furthermore, the current amplitude near the second side 111b and along its extension direction is larger, contributing significantly to the radiation pattern of the electromagnetic wave signal in the preset frequency band. Additionally, the current direction near the second side 111b and along its extension direction is consistent, meaning the phase of this current is essentially in the same direction. This allows the antenna assembly 10 to have a maximum radiation pattern pointing upwards when supporting the target frequency band, with a larger proportion of the upper hemisphere. Therefore, when the antenna assembly 10 communicates with a satellite using the target frequency band, the communication effect is better.

[0054] The high-current region 110a is located on the floor 110, and is situated within a circle centered at the point O where the current is greatest in the floor 110. Within a region of radius R.

[0055] The so-called high-current region 110a of the ground plane 110 refers to the region including the point with the largest current in the ground plane 110. In the antenna assembly 10 provided in this application, the high-current region 110a is located on the ground plane 110, and is situated within a circle centered on the point O with the largest current in the ground plane 110. Within a radius R, the current intensity is relatively high. Therefore, the antenna assembly 10 provided in this embodiment can effectively excite the half-wavelength mode current of the ground plane 110, with a large current amplitude along the extension direction of the second side 111b, contributing significantly to the radiation pattern of the electromagnetic wave signal in the preset frequency band. Furthermore, the currents near the second side 111b and along its extension direction are in the same direction, meaning that the phases generated by this portion of the current are essentially in the same direction. Please refer to... Figure 7The antenna assembly 10 provided in this embodiment has a maximum radiation pattern that faces upwards, and the upper hemisphere accounts for a large proportion (more than 60% in this embodiment). Therefore, when the antenna assembly 10 communicates with the satellite using the target frequency band, the communication effect is better.

[0056] Please continue reading. Figure 9 The floor 110 has an unfolded state in which the first grounding portion 111 is unfolded relative to the second grounding portion 112, and a folded state in which the first grounding portion 111 is folded relative to the second grounding portion 112. When the floor 110 is in the unfolded state, the dimensions of the floor 110 along the extending direction of the second side 111b are... satisfy When the floor 110 is in a folded state, the dimensions of the floor 110 along the extension direction of the second side 111b are... satisfy ,and .

[0057] For the first grounding portion 111, the first side 111a is the long side of the first grounding portion 111, and the second side 111b is the short side of the first grounding portion 111. When the floor 110 is in the unfolded state, the dimension of the floor 110 along the extension direction of the second side 111b is... satisfy When the floor 110 is in a folded state, the dimensions of the floor 110 along the extension direction of the second side 111b are... satisfy This can excite a half-wavelength mode current in the floor 110. The current amplitude is larger near the second side 111b and along its extension direction, contributing significantly to the radiation pattern of the electromagnetic wave signal in the preset frequency band. Furthermore, the current near the second side 111b and along its extension direction is in the same direction, meaning the phase of this generated current is essentially in the same direction. Please refer to [link / reference]. Figure 7 The antenna assembly 10 provided in this embodiment has a maximum radiation pattern that faces upwards, and the upper hemisphere accounts for a large proportion (more than 60% in this embodiment). Therefore, when the antenna assembly 10 communicates with the satellite using the target frequency band, the communication effect is better.

[0058] Please see Figure 10The excitation signal generated by the feed source S includes a first sub-excitation signal and a second sub-excitation signal, and the target frequency band includes a first sub-frequency band and a second sub-frequency band. The antenna assembly 10 further includes a resonant inductor L and a resonant capacitor C. One end of the resonant inductor L is electrically connected to the feed source S, one end of the resonant capacitor C is electrically connected to the other end of the resonant inductor L, and the other end of the resonant capacitor C is electrically connected to the feed point P. The resonant inductor L and the resonant capacitor C resonate in the first sub-frequency band, and the feed source S is used to couple the second sub-frequency band to the feed point P through the resonant inductor L. The first sub-excitation signal enables the antenna assembly 10 to support the first sub-frequency band, and the second sub-excitation signal enables the antenna assembly 10 to support the second sub-frequency band. Furthermore, the resonant frequency of the first sub-frequency band is greater than the resonant frequency of the second sub-frequency band.

[0059] One end of the resonant inductor L is electrically connected to the feed source S, and one end of the resonant capacitor C is electrically connected to the other end of the resonant inductor L. The other end of the resonant capacitor C is electrically connected to the feed point P. In other words, the feed source S is sequentially connected to the resonant inductor L, the resonant capacitor C, and the feed point P.

[0060] The resonant inductor L and the resonant capacitor C resonate in the first sub-frequency band. Therefore, for the first sub-excitation signal supporting the first sub-frequency band, the first sub-excitation signal is equivalent to being directly fed to the feed point P; for the second sub-excitation signal supporting the second sub-frequency band, the second sub-excitation signal is equivalent to being coupled to the feed point P.

[0061] Understandably, in this embodiment, the resonant inductor L and the resonant capacitor C resonate in the first sub-frequency band; in other embodiments, the resonant inductor L and the resonant capacitor C resonate near the first sub-frequency band.

[0062] The antenna assembly 10 provided in this embodiment also includes a resonant inductor L and a resonant capacitor C, thereby enabling the antenna assembly 10 to simultaneously support the first sub-band and the second sub-band, thus giving the antenna assembly 10 better communication performance.

[0063] In one embodiment, the first sub-band is the GPS L1 band, and the second sub-band is the GPS L5 band.

[0064] Further, please refer to Figure 11The antenna assembly 10 further includes a first matching circuit M1 and a second matching circuit M2. One end of the first matching circuit M1 is electrically connected to the feed point P, and the other end of the first matching circuit M1 is grounded. One end of the second matching circuit M2 is electrically connected to the resonant inductor L, which is electrically connected to one end of the feed source S, and the other end of the second matching circuit M2 is grounded.

[0065] The first matching circuit M1 can adjust the electrical length of the radiator 120. The first matching circuit M1 may include one or more of the following: a capacitor, an inductor, a capacitor and an inductor in parallel, a capacitor and an inductor in series, etc. The second matching circuit M2 is used for impedance tuning. The second matching circuit M2 may include one or more of the following: a capacitor, an inductor, a capacitor and an inductor in parallel, a capacitor and an inductor in series, etc.

[0066] The antenna assembly 10 further includes a first matching circuit M1 and a second matching circuit M2, which can tune the target frequency band supported by the antenna assembly 10 so that the antenna assembly 10 has better communication performance in the target frequency band.

[0067] To illustrate the antenna assembly 10 provided in the embodiments of this application, a simulation of the antenna assembly 10 provided in an embodiment of this application is performed below.

[0068] Please see Figure 13 , Figure 13 This is a schematic diagram of the overall system efficiency of each antenna component in the folded state. Figure 13 The horizontal axis represents frequency (GHz), and the vertical axis represents system total efficiency (dB). In this embodiment, the simulation is performed using the GPS L1 band supported by each antenna component 10 as an example. Curve ① is the system total efficiency curve of the antenna component 10 in the folded state as shown in Embodiment 1 of the related art; curve ② is the system total efficiency curve of the antenna component 10 in the folded state as shown in Embodiment 2 of the related art; curve ③ is the system total efficiency curve of this application. Figure 5 The system overall efficiency curve of antenna assembly 10 in the folded state is shown. It can be seen that in the folded state, the bandwidth of antenna assembly 10 corresponding to curve ② is relatively narrow; the bandwidth of antenna assembly 10 corresponding to curve ① and curve ③ is relatively wide.

[0069] Furthermore, it should be noted that the performance of the antenna assembly 10 corresponding to curve ① is relatively poor in the deployed state. In contrast, the antenna assembly 10 provided in this embodiment of the application has relatively good performance in the deployed state.

[0070] In summary, the antenna assembly 10 corresponding to curve ① performs relatively well in the folded state, but relatively poorly in the unfolded state. The antenna assembly 10 corresponding to curve ② performs relatively poorly in the folded state, but relatively well in the unfolded state. However, the antenna assembly 10 provided in this embodiment exhibits good performance in both the unfolded and folded states.

[0071] It should be noted that the preceding simulation uses the target frequency band supported by the antenna assembly 10 as an example of the GPS L1 band, and it should be understood that this should not be construed as limiting the implementation of this application. In other embodiments, the target frequency band supported by the antenna assembly 10 may also be the GPS L5 band.

[0072] Furthermore, as mentioned in the preceding embodiments, the target frequency band supported by the antenna assembly 10 may include a first sub-band and a second sub-band, wherein the first sub-band is the GPS L1 band and the second sub-band is the GPS L5 band, as detailed in the preceding description. In other words, the antenna assembly 10 can simultaneously support both the GPS L1 and GPS L5 bands. That is, the antenna assembly 10 can support both GPS L1 and GPS L5 dual-bands, and the antenna assembly 10 is a dual-band antenna sharing a common antenna for both GPS L1 and GPS L5.

[0073] Please see Figure 14 , Figure 14 For this application Figure 5 The diagram shows the radiation efficiency of the antenna assembly in its deployed state under ideal and actual conditions. In this simulation diagram, the horizontal axis represents frequency (GHz), and the vertical axis represents efficiency (dB). Curve ① is the radiation efficiency curve of the antenna assembly 10 in its deployed state supporting both GPS L1 and GPS L5 bands under ideal conditions; curve ② (yellow) is... Figure 5 The diagram shows the radiation efficiency curve of the antenna assembly 10 in its deployed state. As can be seen from this simulation, when the antenna assembly 10 is in its deployed state, it exhibits excellent efficiency in both the GPS L1 and GPS L5 frequency bands.

[0074] Please see Figure 15 , Figure 15 This is the radiation pattern when the antenna assembly is in its deployed state, supporting both the GPS L5 and GPS L1 bands. Figure 15 (a) in the diagram is the radiation pattern when the antenna assembly 10 is in the deployed state and supports the GPS L5 band; Figure 15(b) shows the radiation pattern when the antenna assembly 10 is in the deployed state and supports the GPS L1 band. It can be seen that when the antenna assembly 10 is in the deployed state, the upper hemisphere occupies 52% of the GPS L5 band, while the upper hemisphere occupies 56% of the GPS L1 band. Therefore, when the antenna assembly 10 supports both the GPS L5 and GPS L1 bands (also known as dual-band mode), more than half of the radiation direction is towards the upper hemisphere. Therefore, when the antenna assembly 10 is in the deployed state, it has good communication performance when communicating using both the GPS L1 and GPS L5 bands.

[0075] Please see Figure 16 , Figure 16 for Figure 9 Figure (b) shows a schematic diagram illustrating the radiation efficiency of the antenna assembly in its folded state under ideal and actual conditions. In this simulation diagram, the horizontal axis represents frequency (GHz), and the vertical axis represents efficiency (dB). Curve ① represents... Figure 9 (b) shows the ideal radiation efficiency curves of antenna assembly 10 in its folded state, supporting both GPS L1 and GPS L5 bands; curve ② is... Figure 9 The radiation efficiency curve of antenna assembly 10 in the actual state when it is in the folded state is shown in (b) of the figure. As can be seen from this simulation figure, when the antenna assembly 10 is in the folded state, the efficiency of the antenna assembly 10 in the GPS L1 band is basically not reduced.

[0076] Please see Figure 17 , Figure 17 This is the radiation pattern for the antenna assembly when it is in a folded state, supporting both GPS L5 and GPS L1 bands. Figure 17 (a) in the diagram is the radiation pattern when the antenna assembly 10 is in a folded state and supports the GPS L5 band; Figure 17 Figure (b) shows the radiation pattern when the antenna assembly 10 is in the folded state and supports the GPS L1 band. It can be seen that when the antenna assembly 10 is in the folded state, the upper hemisphere occupies 47% of the GPS L5 band, while the upper hemisphere occupies 49% of the GPS L1 band. Therefore, when the antenna assembly 10 supports both the GPS L5 and GPS L1 bands (also known as dual-band mode), a larger proportion of the radiation direction is directed towards the upper hemisphere. Therefore, when the antenna assembly 10 is in the folded state, it exhibits good communication performance when communicating using both the GPS L1 and GPS L5 bands.

[0077] In summary, the antenna assembly 10 provided in the second embodiment of the related technology has similar performance to the antenna assembly 10 provided in the embodiment of this application in the unfolded state; however, the antenna assembly 10 provided in the second embodiment of the related technology has a narrower bandwidth in the folded state because the opening direction of the antenna assembly 10 cannot effectively excite the ground mode.

[0078] In summary, the antenna assembly 10 provided in this application, compared with antenna groups in related technologies, can excite the half-wavelength mode of the ground plane 110 by designing the layout of the radiator 120, so that the radiation pattern of the target frequency band supported by the antenna assembly 10 faces upward and the upper hemisphere accounts for a higher proportion (close to 60%), thereby improving the experience of communication using the target frequency band of the antenna assembly 10.

[0079] Furthermore, compared to a typical single-band antenna assembly 10, the antenna assembly 10 provided in one embodiment of this application includes designs such as a resonant inductor L and a resonant capacitor C. A first sub-excitation signal is directly fed to the feed point P, and a second sub-excitation signal is coupled and fed to the feed point P, thereby enabling the antenna assembly 10 to support two frequency bands, a first sub-band and a second sub-band. In one embodiment, the first sub-band is the GPS L1 band, and the second sub-band is the GPS L5 band. Therefore, the antenna assembly 10 achieves dual-band GPS functionality.

[0080] As can be seen from the simulation above, when the antenna assembly 10 supports both the first and second sub-bands, it exhibits good overall system efficiency in both sub-bands, regardless of whether it is in a folded or unfolded state. Furthermore, regardless of whether the antenna assembly 10 is folded or unfolded, it maintains a good upper hemisphere proportion in the radiation patterns corresponding to both sub-bands, demonstrating good communication performance when using both sub-bands.

[0081] Please refer to the following: Figure 18 , Figure 19 , Figure 20 and Figure 21 , Figure 18 A perspective view of an electronic device provided in an embodiment of this application in an unfolded state; Figure 19 In one implementation method Figure 18 An exploded three-dimensional diagram of the electronic device shown. Figure 20 In another implementation Figure 18 An exploded three-dimensional diagram of the electronic device shown. Figure 21In another implementation Figure 18 The diagram shows an exploded perspective view of the electronic device. This application also provides an electronic device 1, which includes, but is not limited to, devices capable of transmitting and receiving electromagnetic wave signals in a target frequency band, such as mobile phones, telephones, televisions, tablets, cameras, personal computers, laptops (PCs), in-vehicle devices, headphones, watches, wearable devices, base stations, vehicle radars, and customer pre-installation equipment (CPE). In this application, a mobile phone is used as an example of the electronic device 1; other devices can be referred to the specific descriptions in this application. The electronic device 1 includes the antenna assembly 10 provided in any of the preceding embodiments. The electronic device 1 is foldable along a folding axis L1. The electronic device 1 includes a display screen 20, a shielding member 30, and a mid-frame 40. The display screen 20 includes a first display portion 210 and a second display portion 220 that are relatively bendable. The shielding member 30 includes a first shielding portion 310 and a second shielding portion 320 that are relatively bendable, with the first shielding portion 310 disposed on one side of the first display portion 210 and the second shielding portion 320 disposed on one side of the second display portion 220. The middle frame 40 includes a first frame portion 410 and a second frame portion 420 that can be bent relative to each other. The first frame portion 410 is disposed on the side of the first shielding portion 310 opposite to the first display portion 210, and the second frame portion 420 is disposed on the side of the second shielding portion 320 opposite to the second display portion 220. The middle frame 40 is the floor 110 of the antenna assembly 10, the first frame portion 410 is the first grounding portion 111, and the second frame portion 420 is the second grounding portion 112 (see [link to documentation]). Figure 19 Alternatively, the shielding member 30 may be the ground plane 110 of the antenna assembly 10, the first shielding portion 310 may be the first grounding portion 111, and the second shielding portion 320 may be the second grounding portion 112 (see [link to relevant documentation]). Figure 20 Alternatively, the middle frame 40 is electrically connected to the shielding member 30, the first frame portion 410 and the first shielding portion 310 together constitute the first grounding portion 111, and the second frame portion 420 and the second shielding portion 320 together constitute the second grounding portion 112 (see [link]). Figure 21 ).

[0082] In this embodiment, the middle frame 40 is used as the ground plane 110 of the antenna assembly 10, the first frame portion 410 is used as the first grounding portion 111, and the second frame portion 420 is used as the second grounding portion 112 as an example for illustration. It should be understood that this should not constitute a limitation on the embodiments of this application. The foldable electronic device 1 provided by the embodiments of this application reuses the middle frame 40 as the ground plane 110 of the antenna assembly 10, which can reduce the number of components in the electronic device 1 and improve the integration of the electronic device 1.

[0083] Understandably, in other embodiments, the shielding member 30 is the ground plane 110 of the antenna assembly 10, the first shielding portion 310 is the first grounding portion 111, and the second shielding portion 320 is the second grounding portion 112. The shielding member 30 being reused as the ground plane 110 of the antenna assembly 10 can reduce the number of components in the electronic device 1 and improve the integration of the electronic device 1.

[0084] Understandably, in other embodiments, the middle frame 40 is electrically connected to the shielding member 30, the first frame portion 410 and the first shielding portion 310 together constitute the first grounding portion 111, and the second frame portion 420 and the second shielding portion 320 together constitute the second grounding portion 112. The electrical connection and reuse of the middle frame 40 and the shielding member 30 as the ground plane 110 of the antenna assembly 10 can reduce the number of components in the electronic device 1 and improve the integration of the electronic device 1.

[0085] Understandably, in other implementations, please refer to Figure 18 and Figure 22 , Figure 22 In another implementation method Figure 18 The diagram shows an exploded perspective view of the electronic device. The ground plane 110 of the antenna assembly 10 can also be a separate ground plane 110, and other components in the electronic device 1 (such as the middle frame 40 and the shielding component 30) are not reused as the ground plane 110 of the antenna assembly 10.

[0086] Furthermore, in the above embodiments, the electronic device 1 further includes a circuit board 50 and a housing 60. The feed source S is disposed on the circuit board 50. When the antenna assembly 10 further includes a resonant inductor L and a resonant capacitor C, the resonant inductor L and the resonant capacitor C are disposed on the circuit board 50. When the antenna assembly 10 further includes a first matching circuit M1 and a second matching circuit M2, the first matching circuit M1 and the second matching circuit M2 are disposed on the circuit board 50. The housing 60 is disposed opposite to and spaced apart from the display screen 20. In one embodiment, the housing 60 is used to cooperate with the display screen 20 to form a receiving space, the receiving space being used to receive the antenna assembly 10, the shielding member 30, and the mid-frame 40. The housing 60 includes a first housing portion 610 and a second housing portion 620, the first housing portion 610 being disposed corresponding to the first display portion 210, and the second housing portion 620 being disposed corresponding to the second display portion 220.

[0087] The foldable electronic device 1 provided in this embodiment is specifically designed for the target frequency band (such as GPS L1 band, GPS L5 band, etc. satellite positioning frequency band) that radiates upwards. By combining the lateral dimensions of the floor 110 in the unfolded and folded states of the foldable electronic device 1, the optimal layout of the radiator 120 is designed, and the antenna assembly 10 with the optimal upper hemisphere ratio can be obtained.

[0088] The above description represents some embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. An antenna assembly, characterized in that, The antenna assembly includes: The floor includes a first grounding portion and a second grounding portion that are bent and connected along a folding axis and electrically connected; the first grounding portion has a first side facing away from the folding axis and a second side that is bent and connected to the first side and located between the first side and the folding axis. A radiator, each part of which is disposed corresponding to the second side, includes a grounding end, a free end, and a feed point. The grounding end is electrically connected to the first grounding part for grounding, and the free end is located away from the folding axis relative to the grounding end. A feed source is provided to generate an excitation signal. The feed source is electrically connected to the feed point to excite the ground plane to generate a half-wavelength mode current along the extension direction of the second side, so that the antenna assembly supports a target frequency band for communication with a satellite. The ground plane has a top edge extending along the extension direction of the second side and including the second side. When the ground plane is in the deployed state, the midpoint of the top edge is the point of maximum current on the ground plane, and the maximum radiation pattern of the target frequency band faces upward.

2. The antenna assembly of claim 1, wherein the ground plane has an unfolded state in which the first ground portion is unfolded relative to the second ground portion, and a folded state in which the first ground portion is folded relative to the second ground portion; when the ground plane is in the unfolded state, the ground plane has a top edge extending along the second side extension direction and including the second side; the connection point of the grounding terminal electrically connected to the first ground portion is located at the top edge, and the distance d between the connection point and the midpoint of the top edge satisfies: ,in, The wavelength of the electromagnetic wave signal in the target frequency band is denoted as .

3. The antenna assembly as described in claim 2, characterized in that, The floor also includes: A rotating shaft is disposed between the first grounding part and the second grounding part. The first grounding part and the second grounding part are connected and electrically connected by bending through the rotating shaft. The rotating shaft has the folding axis, the midpoint of the top edge is located on the folding axis, and the connection point is located on the second side.

4. The antenna assembly as described in claim 3, characterized in that, When the floor is in the unfolded state, the dimensions of the floor in the extension direction along the second side are... satisfy ; When the floor is in a folded state, the dimensions of the floor along the extension direction of the second side... satisfy ,and .

5. The antenna assembly as claimed in claim 1, characterized in that, The excitation signal generated by the feed source includes a first sub-excitation signal and a second sub-excitation signal, and the target frequency band includes a first sub-frequency band and a second sub-frequency band. The antenna assembly further includes a resonant inductor and a resonant capacitor. One end of the resonant inductor is electrically connected to the feed source, one end of the resonant capacitor is electrically connected to the other end of the resonant inductor, and the other end of the resonant capacitor is electrically connected to the feed point. The resonant inductor and the resonant capacitor resonate in the first sub-frequency band. The feed source is used to couple the second sub-frequency band to the feed point through the resonant inductor. Wherein, the first sub-excitation signal is used to enable the antenna assembly to support the first sub-frequency band, the second sub-excitation signal is used to enable the antenna assembly to support the second sub-frequency band, and the resonant frequency of the first sub-frequency band is greater than the resonant frequency of the second sub-frequency band.

6. The antenna assembly as claimed in claim 5, characterized in that, The first sub-band is the GPS L1 band, and the second sub-band is the GPS L5 band.

7. The antenna assembly as claimed in claim 5, characterized in that, The antenna assembly further includes a first matching circuit and a second matching circuit. One end of the first matching circuit is electrically connected to the feed point, and the other end of the first matching circuit is grounded. One end of the second matching circuit is electrically connected to the resonant inductor, which is electrically connected to the feed source, and the other end of the second matching circuit is grounded.

8. An antenna assembly, characterized in that, The antenna assembly includes: The floor includes a first grounding portion and a second grounding portion that are bent and connected along a folding axis and electrically connected; the first grounding portion has a first side away from the folding axis and a second side that is bent and connected to the first side and located between the first side and the folding axis. A radiator, with each part of the radiator corresponding to the second side, has a grounding end, a free end, and a feed point. The grounding end is electrically connected to the first grounding part for grounding, and the free end is located away from the folding axis relative to the grounding end. A feed source is provided to generate an excitation signal for a target frequency band. The feed source is electrically connected to the feed point to excite the ground plane to generate a half-wavelength mode current along the extension direction of the second side. The ground terminal is electrically connected to the connection point of the first ground portion located in the current-strong point region of the ground plane. The current-strong point region includes the point of maximum current in the ground plane. The ground plane has a top edge extending along the extension direction of the second side and including the second side. When the ground plane is in the unfolded state, the midpoint of the top edge is the point of maximum current on the ground plane. The maximum radiation pattern of the target frequency band faces upward.

9. The antenna assembly as claimed in claim 8, characterized in that, The region of high current intensity is located on the floor, and is situated within a circle centered on the point of maximum current in the floor. Within a region of radius , where, The wavelength of the electromagnetic wave signal in the target frequency band is denoted as .

10. The antenna assembly as claimed in claim 9, characterized in that, The floor has an unfolded state in which the first grounding portion is unfolded relative to the second grounding portion, and a folded state in which the first grounding portion is folded relative to the second grounding portion. When the floor is in the unfolded state, the dimensions of the floor in the extension direction along the second side are... satisfy ; When the floor is in a folded state, the dimensions of the floor along the extension direction of the second side... satisfy ,and .

11. The antenna assembly as claimed in claim 8, characterized in that, The excitation signal generated by the feed source includes a first sub-excitation signal and a second sub-excitation signal, and the target frequency band includes a first sub-frequency band and a second sub-frequency band. The antenna assembly further includes a resonant inductor and a resonant capacitor. One end of the resonant inductor is electrically connected to the feed source, one end of the resonant capacitor is electrically connected to the other end of the resonant inductor, and the other end of the resonant capacitor is electrically connected to the feed point. The resonant inductor and the resonant capacitor resonate in the first sub-frequency band. The feed source is used to couple the second sub-frequency band to the feed point through the resonant inductor. Wherein, the first sub-excitation signal is used to enable the antenna assembly to support the first sub-frequency band, the second sub-excitation signal is used to enable the antenna assembly to support the second sub-frequency band, and the resonant frequency of the first sub-frequency band is greater than the resonant frequency of the second sub-frequency band.

12. A foldable electronic device, characterized in that, The electronic device includes an antenna assembly as described in any one of claims 1-7, or the electronic device includes an antenna assembly as described in any one of claims 8-11.

13. The electronic device as claimed in claim 12, characterized in that, The electronic device also includes: The display screen includes a first display section and a second display section that are relatively flexible; A shielding component, comprising a first shielding portion and a second shielding portion that are bendable relative to each other, wherein the first shielding portion is disposed on one side of the first display portion, and the second shielding portion is disposed on one side of the second display portion; and The middle frame includes a first frame portion and a second frame portion that can be bent relative to each other. The first frame portion is disposed on the side of the first shielding portion away from the first display portion, and the second frame portion is disposed on the side of the second shielding portion away from the second display portion. Wherein, the middle frame is the ground plane of the antenna assembly, the first frame portion is the first grounding portion, and the second frame portion is the second grounding portion; or, the shielding component is the ground plane of the antenna assembly, the first shielding portion is the first grounding portion, and the second shielding portion is the second grounding portion; or, the middle frame is electrically connected to the shielding component, the first frame portion and the first shielding portion together constitute the first grounding portion, and the second frame portion and the second shielding portion together constitute the second grounding portion.

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