Electronic device

Abstract

The application provides an electronic device. The electronic device comprises a reference ground and an antenna assembly, the reference ground comprises a top edge and a side edge connected by bending; the antenna assembly comprises a first radiator, a feed source and a second radiator; the first radiator is arranged corresponding to the side edge, the first radiator has a first end, a return point, a feed point and a second end, wherein the first end and the second end are free ends, and the return point is electrically connected to the reference ground; the feed source is electrically connected to the feed point, and is used for exciting the first radiator to generate a first resonant mode and a second resonant mode to support a target frequency band for satellite communication, wherein the first resonant mode is a common mode of the first radiator, and the second resonant mode is a differential mode of the first radiator; and the second radiator is arranged corresponding to the top edge to improve the upper half-sphere proportion of the target frequency band.

Description

Technical Field

[0001] This application relates to the field of communication technology, specifically to an electronic device. Background Technology

[0002] With the development of technology, mobile phones and other electronic devices are becoming increasingly popular. These electronic devices typically include antenna components. Antenna components can transmit and receive electromagnetic wave signals, and electronic devices use them to communicate with other devices. For example, electronic devices use antenna components to communicate with satellites. However, in related technologies, the communication performance when using antenna components to communicate with satellites is not good. Summary of the Invention

[0003] In a first aspect, this application provides an electronic device, the electronic device including a reference ground and an antenna assembly, the reference ground including a top edge and a side edge that are bent and connected together; the antenna assembly includes:

[0004] A first radiator is disposed corresponding to the side. The first radiator has a first end, a return point, a feed point, and a second end, wherein the first end and the second end are free ends, and the return point is electrically connected to the reference ground.

[0005] A feed source, electrically connected to the feed point, is used to excite the first radiator to generate a first resonant mode and a second resonant mode to support the target frequency band for satellite communication, wherein the first resonant mode is the common mode of the first radiator, and the second resonant mode is the differential mode of the first radiator; and

[0006] A second radiator is provided corresponding to the top edge to increase the upper hemisphere proportion of the target frequency band.

[0007] In summary, the electronic device provided in this application has a first radiator positioned to the side of the reference ground. The first radiator supports both a first resonant mode and a second resonant mode. Based on these modes, the lateral and balanced modes of the reference ground are excited, enabling the antenna assembly to achieve circularly polarized radiation when supporting the target frequency band, thus meeting the requirements for satellite communication. The second radiator is positioned to the top edge. Therefore, the second radiator can guide the radiation pattern of the antenna assembly when supporting the target frequency band, causing the radiation pattern to point towards the top of the electronic device. This increases the upper hemisphere ratio and circularly polarized antenna gain when the electronic device supports the target frequency band. When the electronic device uses the antenna assembly to communicate with a satellite, the communication effect is better, improving the user experience.

[0008] Secondly, embodiments of this application provide an electronic device, the electronic device including a reference ground and an antenna assembly. The reference ground includes a first sub-reference ground and a second sub-reference ground that are foldable relative to a folding axis. The first sub-reference ground includes a first side, a top side, a second side, and a connecting side that are bent and connected in sequence. The connecting side is opposite to and spaced apart from the top side, and the top side is further away from the folding axis than the connecting side. The antenna assembly includes:

[0009] A first radiator is disposed corresponding to the first side. The first radiator has a first end, a return point, a feed point, and a second end, wherein the first end and the second end are free ends, and the return point is electrically connected to the first sub-reference ground.

[0010] A feed source, electrically connected to the feed point, is used to excite the first radiator to generate a first resonant mode and a second resonant mode to support the target frequency band for satellite communication, wherein the first resonant mode is the common mode of the first radiator, and the second resonant mode is the differential mode of the first radiator; and

[0011] A second radiator is provided corresponding to the top edge to increase the upper hemisphere proportion of the target frequency band.

[0012] In summary, the electronic device provided in this application has a first radiator disposed on the first side of the first sub-reference ground of the reference ground. The first radiator can support the first resonant mode and the second resonant mode. Based on the first resonant mode and the second resonant mode of the first radiator, the lateral mode and the balanced mode of the reference ground are excited, so that the antenna assembly achieves circularly polarized radiation when supporting the target frequency band, which can meet the conditions for communication with satellites. The second radiator is disposed on the top side. Therefore, the second radiator can guide the radiation pattern of the antenna assembly when supporting the target frequency band, so that the radiation pattern of the antenna assembly when supporting the target frequency band is oriented towards the top of the electronic device, improving the upper hemisphere ratio and the circularly polarized antenna gain when the electronic device supports the target frequency band. When the electronic device uses the antenna assembly to communicate with satellites, the communication effect is better, and the user experience is improved. Attached Figure Description

[0013] 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.

[0014] To more clearly illustrate the technical solutions in 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 from these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the structure of an electronic device provided in one embodiment of this application;

[0016] Figure 2 One implementation method Figure 1 A schematic diagram of a portion of the structure of the electronic device shown;

[0017] Figure 3 for Figure 2 A schematic diagram of the current corresponding to the first resonant mode in the electronic device shown;

[0018] Figure 4 for Figure 2 A schematic diagram of the current corresponding to the first resonant mode in the electronic device shown;

[0019] Figure 5 for Figure 2 A schematic diagram showing the dimensions of some components in the electronic device shown;

[0020] Figure 6 A schematic diagram of an electronic device in an unfolded state, provided for another embodiment of this application;

[0021] Figure 7 for Figure 6 The diagram shows the electronic device in a folded state;

[0022] Figure 8 for Figure 6 The diagram shows a partial structural schematic of the electronic device.

[0023] Figure 9 for Figure 7 A partial structural diagram of the electronic device shown;

[0024] Figure 10 for Figure 8 A schematic diagram of the current corresponding to the first resonant mode in the electronic device shown;

[0025] Figure 11 for Figure 8 A schematic diagram of the current corresponding to the first resonant mode in the electronic device shown;

[0026] Figure 12 for Figure 9 A schematic diagram showing the dimensions of some components in the electronic device shown;

[0027] Figure 13 A schematic diagram of an electronic device in an unfolded state according to another embodiment of this application;

[0028] Figure 14 for Figure 13 The diagram shows the electronic device in a folded state;

[0029] Figure 15 for Figure 13 The diagram shows a partial structural schematic of the electronic device.

[0030] Figure 16 for Figure 14 A partial structural diagram of the electronic device shown;

[0031] Figure 17 for Figure 15 A schematic diagram of the current corresponding to the first resonant mode in the electronic device shown;

[0032] Figure 18 for Figure 15 A schematic diagram of the current corresponding to the first resonant mode in the electronic device shown;

[0033] Figure 19 for Figure 16 A schematic diagram showing the dimensions of some components in the electronic device shown;

[0034] Figure 20 This is another embodiment of the present application. Figure 1 The diagram shows a partial structural schematic of the electronic device.

[0035] Figure 21 for Figure 20 A schematic diagram of a simulation model of the electronic device shown;

[0036] Figure 22 for Figure 20 The antenna assembly in the electronic device shown supports a three-dimensional radiation pattern when it supports the target frequency band;

[0037] Figure 23 for Figure 20 The antenna assembly in the electronic device shown is the overall two-dimensional radiation pattern of the antenna assembly when it supports the target frequency band in the Phi-Theta two-dimensional coordinate system;

[0038] Figure 24 for Figure 20 The antenna assembly in the electronic device shown is a left-handed polarized two-dimensional radiation pattern in the Phi-Theta two-dimensional coordinate system;

[0039] Figure 25 for Figure 20The antenna assembly of the electronic device shown in the front view is a right-handed two-dimensional radiation pattern in the Phi-Theta two-dimensional coordinate system.

[0040] Figure 26 for Figure 20 The diagram shows the current distribution of the antenna assembly of the electronic device under different phases.

[0041] Figure 27 for Figure 20 The diagram shows the upper hemisphere percentage data when the antenna assembly of the electronic device supports the target frequency band.

[0042] Figure 28 for Figure 9 The antenna assembly in the electronic device shown supports a three-dimensional radiation pattern when it supports the target frequency band;

[0043] Figure 29 for Figure 9 The antenna assembly in the electronic device shown is the overall two-dimensional radiation pattern of the antenna assembly when it supports the target frequency band in the Phi-Theta two-dimensional coordinate system;

[0044] Figure 30 for Figure 9 The antenna assembly in the electronic device shown is a left-handed polarized two-dimensional radiation pattern in the Phi-Theta two-dimensional coordinate system;

[0045] Figure 31 for Figure 9 The antenna assembly of the electronic device shown in the front view is a right-handed two-dimensional radiation pattern in the Phi-Theta two-dimensional coordinate system.

[0046] Figure 32 for Figure 9 The diagram shows the upper hemisphere percentage data when the antenna assembly of the electronic device supports the target frequency band.

[0047] Figure 33 for Figure 16 The antenna assembly in the electronic device shown supports a three-dimensional radiation pattern when it supports the target frequency band;

[0048] Figure 34 for Figure 16 The antenna assembly in the electronic device shown is the overall two-dimensional radiation pattern of the antenna assembly when it supports the target frequency band in the Phi-Theta two-dimensional coordinate system;

[0049] Figure 35 for Figure 16 The antenna assembly in the electronic device shown is a left-handed polarized two-dimensional radiation pattern in the Phi-Theta two-dimensional coordinate system;

[0050] Figure 36 for Figure 16The antenna assembly of the electronic device shown in the front view is a right-handed two-dimensional radiation pattern in the Phi-Theta two-dimensional coordinate system.

[0051] Figure 37 for Figure 16 The diagram shows the upper hemisphere percentage data when the antenna assembly of the electronic device supports the target frequency band.

[0052] Explanation of key component designations:

[0053] Electronic device 1, reference ground 10, antenna assembly 20, flexible display screen 50, housing 60;

[0054] Top edge 111, side edge 112, bottom edge 113, connecting edge 114, first side edge 115, second side edge 116;

[0055] First sub-reference ground 110, second sub-reference ground 120, pivot 130;

[0056] First radiator 210, first end 211, return point G1, feed point P1, second end 212;

[0057] Second radiator 220, third end 221, fourth end 222;

[0058] Feed source S, first matching circuit M1, second matching circuit M2

[0059] First display unit 510, second display unit 520, bending part 530, first housing 610, second housing 620. Detailed Implementation

[0060] 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. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0061] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0062] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0063] This application provides an electronic device 1, which includes, but is not limited to, devices with communication functions such as mobile phones, watches, mobile internet devices (MIDs), e-books, portable PlayStation Portable (PSPs), or personal digital assistants (PDAs). In one embodiment, the electronic device 1 includes an antenna assembly 20, which supports a target frequency band for communication with satellites (e.g., Tiantong satellites).

[0064] Please refer to the following: Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of an electronic device provided in one embodiment of this application; Figure 2 One implementation method Figure 1 The diagram shows a partial structure of the electronic device. Figure 2 The structure of the electronic device shown is Figure 1 The diagram shows a rear view of the electronic device 1, specifically a schematic view from the housing (also called the battery cover) of the electronic device 1 towards the display screen of the electronic device 1. The electronic device 1 includes a reference ground 10 and an antenna assembly 20. The reference ground 10 includes a bent and connected top edge 111 and a side edge 112. The antenna assembly 20 includes a first radiator 210, a feed source S, and a second radiator 220. The first radiator 210 is disposed corresponding to the side edge 112 and has a first end 211, a return point G1, a feed point P1, and a second end 212, wherein the first end 211 and the second end 212 are free ends, and the return point G1 is electrically connected to the reference ground 10. The feed source S is electrically connected to the feed point P1 and is used to excite the first radiator 210 to generate a first resonant mode and a second resonant mode to support the target frequency band for satellite communication, wherein the first resonant mode is the common mode of the first radiator 210, and the second resonant mode is the differential mode of the first radiator 210. The second radiator 220 is disposed corresponding to the top edge 111 to increase the proportion of the upper hemisphere of the target frequency band.

[0065] In the schematic diagram of this embodiment, the electronic device 1 is a non-foldable electronic device 1, therefore, the electronic device 1 can also be called a candybar phone.

[0066] The reference ground 10 may be, but is not limited to, the mid-frame of the electronic device 1, the shielding of the display screen of the electronic device 1, or the battery cover of the electronic device 1, etc. The reference ground 10 may be rectangular or approximately rectangular.

[0067] When the electronic device 1 is used in portrait mode, the top edge 111 of the reference ground 10 is located at the top of the electronic device 1, and the side edge 112 of the reference ground 10 is located at the side of the electronic device 1. In other words, the top edge 111 is the edge of the electronic device 1 furthest from the ground when in portrait mode; the side edge 112 is the edge of the electronic device 1 located on the side when in portrait mode.

[0068] The first radiator 210 can be a laser direct structural (LDS) radiator, a flexible printed circuit (FPC) radiator, a printed direct structural (PDS) radiator, or a metal dendrite radiator. When the antenna assembly 20 is applied to the electronic device 1, the first radiator 210 can be a mechanical design antenna (MDA) radiator designed using the embedded metal of the electronic device 1 itself. For example, the first radiator 210 can be an antenna radiator designed using the plastic and metal frame of the electronic device 1. Furthermore, the first radiator 210 can also be a metal frame antenna radiator designed with a metal frame. It is understood that this application does not specifically limit the shape, structure, and material of the first radiator 210.

[0069] The return point G1 can be electrically connected to the reference ground 10 in the following ways, but not limited to: the first radiator 210 and the reference ground 10 being an integral structure, with the return point G1 of the first radiator 210 being electrically connected to the reference ground 10 via a connecting branch; or, the return point G1 of the first radiator 210 being electrically connected to the reference ground 10 via a matching circuit, wherein the matching circuit can be a zero-ohm device; or, the return point G1 of the first radiator 210 being electrically connected to the reference ground 10 via conductive adhesive or a conductive wire.

[0070] Please see Figure 3 , Figure 3 for Figure 2The diagram illustrates the current flow corresponding to the first resonant mode in the electronic device shown. The first resonant mode is the common mode of the first radiator 210, also known as the C-mode. Specifically, when the first radiator 210 supports the first resonant mode, a first resonant current is generated on the first radiator 210. This first resonant current includes a first sub-current I11 and a second sub-current I12. The first sub-current I11 is located between the first terminal 211 and the return point G1, and the second sub-current I12 is located between the second terminal 212 and the return point G1. The first resonant mode is a quarter-wavelength mode of the first radiator 210. The half-wavelength period shown in the schematic diagram of this embodiment is illustrated by taking the example where the first sub-current I11 flows from the first terminal 211 to the return point G1, and the second sub-current I12 flows from the second terminal 212 to the return point G1. Understandably, the first resonant current is periodic, and in the next half-wavelength period: the first sub-current I11 flows from the return point G1 to the first end 211, and the second sub-current I12 flows from the return point G1 to the second end 212.

[0071] Please see Figure 4 , Figure 4 for Figure 2 The diagram illustrates the current flow corresponding to the first resonant mode in the electronic device shown. The second resonant mode is the differential mode of the first radiator 210, also known as the D-mode. Specifically, when the first radiator 210 supports the second resonant mode, a second resonant current I2 is generated on the first radiator 210. The second resonant current I2 is distributed between the first terminal 211 and the second terminal 212. The second resonant mode is the quarter-wavelength mode of the first radiator 210. The diagram illustrates the flow of the second resonant current I2 from the first terminal 211 to the second terminal 212 during the current half-wavelength period. It can be understood that the second resonant current I2 is periodic; in the next half-wavelength period, the second resonant current I2 flows from the second terminal 212 to the first terminal 211.

[0072] The first resonant mode is the common mode of the first radiator 210, and the second resonant mode is the differential mode of the first radiator 210. Therefore, the first resonant mode and the second resonant mode are also referred to as the two degenerate modes of the first radiator 210. The electronic device 1 provided in this application, based on the two degenerate modes of the first radiator 210, excites the lateral mode and the balanced mode of the reference ground 10, so that the antenna assembly 20 achieves circularly polarized radiation when supporting the target frequency band.

[0073] When the antenna assembly 20 communicates with the satellite, the Global Positioning System (GPS), BeiDou satellites, and TianTong satellites primarily support circularly polarized electromagnetic waves.

[0074] Therefore, the electronic device 1 provided in this application, based on the two degenerate modes of the first radiator 210, excites the lateral and balanced modes of the reference ground 10, enabling the antenna assembly 20 to achieve circularly polarized radiation when supporting the target frequency band, thus meeting the conditions for satellite communication. The frequency range of the target frequency band can be, but is not limited to, 1.98 GHz to 2.2 GHz. It should be noted that the description of the range in this application includes endpoint values. For example, the frequency of the target frequency band includes the endpoint value of 1.98 GHz and also includes the endpoint value of 2.2 GHz. It should also be noted that when the target frequency band ranges from 1.98 GHz to 2.2 GHz, it can also be a frequency band located between 1.98 GHz and 2.2 GHz.

[0075] The second radiator 220 can be a laser direct structural (LDS) radiator, a flexible printed circuit (FPC) radiator, a printed direct structural (PDS) radiator, or a metal branch radiator. When the antenna assembly 20 is applied to the electronic device 1, the second radiator 220 can be a mechanical design antenna (MDA) radiator designed using the embedded metal of the electronic device 1 itself. For example, the second radiator 220 can be an antenna radiator designed using the plastic and metal frame of the electronic device 1. Furthermore, the second radiator 220 can also be a metal frame antenna radiator designed with a metal frame. It is understood that this application does not specifically limit the shape, structure, and material of the second radiator 220. The second radiator 220 can be made of the same material as the first radiator 210, or it can be made of a different material; this is not limited in the embodiments of this application.

[0076] The second radiator 220 is disposed corresponding to the top edge 111. Therefore, the second radiator 220 can guide the radiation pattern of the antenna assembly 20 when it supports the target frequency band, so that the radiation pattern of the antenna assembly 20 when it supports the target frequency band is oriented towards the top of the electronic device 1, thereby increasing the upper hemisphere ratio and circular polarization antenna gain of the electronic device 1 when it supports the target frequency band, and improving the user experience.

[0077] Please refer to further information. Figure 1 In this embodiment, the electronic device further includes a mid-frame 30, a display screen 50, and a housing 60.

[0078] The first radiator 210 and the second radiator 220 are formed on the middle frame 30. Specifically, the middle frame 30 includes a border and a frame body. The first radiator 210 and the second radiator 220 are formed on the border of the middle frame 30. The frame body may be the reference ground 10 of the antenna assembly 20. The display screen 50 is disposed on one side of the middle frame 30, and the housing 60 is disposed on the other side of the middle frame 30. In other words, the display screen 50 and the housing 60 are respectively disposed on opposite sides of the middle frame 30.

[0079] The middle frame 30 and the housing 60 can form a receiving space. The receiving space is also used to house the floor, camera module, receiver module, battery, various sensors and other devices.

[0080] It is understood that the description of the middle frame 30, display screen 50 and housing 60 in the above-mentioned electronic device 1 is a description of the electronic device 1 provided in one embodiment, and should not be construed as a limitation on the application environment of the antenna assembly 20 provided in the embodiments of this application.

[0081] In summary, the electronic device 1 provided in this application has a first radiator 210 disposed on the side 112 of the reference ground 10. The first radiator 210 can support the first resonant mode and the second resonant mode. Based on the first resonant mode and the second resonant mode of the first radiator 210, the lateral mode and the balanced mode of the reference ground 10 are excited, so that the antenna assembly 20 achieves circularly polarized radiation when supporting the target frequency band, which can meet the conditions for satellite communication. The second radiator 220 is disposed on the top edge 111. Therefore, the second radiator 220 can guide the radiation pattern of the antenna assembly 20 when supporting the target frequency band, so that the radiation pattern of the antenna assembly 20 when supporting the target frequency band faces the top of the electronic device 1, thereby increasing the upper hemisphere ratio and the circularly polarized antenna gain when the electronic device 1 supports the target frequency band, and improving the user experience.

[0082] Please continue reading. Figure 2The reference ground 10 is a non-foldable reference ground. The reference ground 10 also includes a connecting edge 114 and a bottom edge 113. The connecting edge 114 is opposite to and spaced apart from the side edge 112, and is bent and connected to the top edge 111. The bottom edge 113 is opposite to and spaced apart from the top edge 111, and is bent and connected to both the side edge 112 and the connecting edge 114. The length of the top edge 111 is less than the length of the side edge 112, and the length of the top edge 111 is less than the length of the connecting edge 114.

[0083] When the electronic device 1 is used in portrait mode, the connecting edge 114 of the reference ground 10 is located on the side of the electronic device 1. The bottom edge 113 of the electronic device 1 is located at the bottom of the electronic device 1. In other words, the bottom edge 113 is the edge of the electronic device 1 that is closest to the ground when in portrait mode; the connecting edge 114 is the edge of the electronic device 1 that is located on the side when in use.

[0084] The length of the top edge 111 is less than the length of the side edge 112, and the length of the top edge 111 is less than the length of the connecting edge 114. Therefore, the top edge 111 is the short edge, the side edge 112 is the long edge, and the connecting edge 114 is the long edge.

[0085] In this embodiment, the electronic device 1 has a top edge 111 that is shorter than the side edge 112. Therefore, the top edge 111 is the short side of the reference ground 10, and the side edge 112 is the long side of the reference ground 10. When the electronic device 1 is used in portrait mode, the first radiator 210 can support the first resonant mode and the second resonant mode. Based on the first and second resonant modes of the first radiator 210, the lateral mode and the balanced mode of the reference ground 10 are excited, enabling the antenna assembly 20 to achieve circularly polarized radiation when supporting the target frequency band, thus meeting the requirements for satellite communication. Furthermore, the second radiator 220 is positioned corresponding to the top edge 111. Therefore, the second radiator 220 can guide the radiation pattern of the antenna assembly 20 when supporting the target frequency band, causing the radiation pattern of the antenna assembly 20 to face the top of the electronic device 1, increasing the upper hemisphere ratio and circularly polarized antenna gain when the electronic device 1 supports the target frequency band, thereby improving the user experience. Furthermore, when the user uses the device in portrait mode, the antenna assembly 20 has a good upper hemisphere ratio and circular polarization gain when supporting the target frequency band, and it can better meet the user habits of the electronic device 1 when using it in portrait mode.

[0086] Please see Figure 5 , Figure 5 for Figure 2The diagram shows the dimensions of some components in the electronic device. The distance Gap1 from the return point G1 to the top edge 111 satisfies: 0.25λ≤Gap1≤0.5λ, where λ is the wavelength corresponding to the center frequency of the target frequency band.

[0087] 0.25λ is equivalent to one-quarter of the wavelength (i.e., (1 / 4) * wavelength), and 0.5λ is equivalent to half the wavelength (i.e., (1 / 2) * wavelength). The distance from the return point G1 to the top edge 111 can be, but is not limited to, 0.25λ, 0.30λ, 0.35λ, 0.40λ, 0.45λ, or 0.5λ.

[0088] When the target frequency band is 2GHz, the distance Gap1 from the return point G1 to the top edge 111 satisfies: 37.5mm≤Gap1≤75mm.

[0089] The electronic device 1 provided in this application embodiment has a distance Gap1 from the return point G1 to the top edge 111 that satisfies: 0.25λ≤Gap1≤0.5λ. The amplitude and phase of the first resonant mode and the second resonant mode (also called two degenerate modes) can be adjusted so that the electromagnetic wave signal of the target frequency band is an electromagnetic wave signal with a good degree of circular polarization.

[0090] Please refer to it again. Figure 2 The second radiator 220 includes a third end 221 and a fourth end 222. The third end 221 is electrically connected to the reference ground 10 for grounding, and the fourth end 222 is a free end, which is further away from the side 112 than the third end 221.

[0091] The third terminal 221 can be electrically connected to the reference ground 10 in the following ways, but not limited to: the second radiator 220 and the reference ground 10 being an integral structure, with the third terminal 221 of the second radiator 220 being electrically connected to the reference ground 10 via a connecting branch; or, the return point of the second radiator 220 being electrically connected to the reference ground 10 via a matching circuit, wherein the matching circuit can be a zero-ohm device; or, the return point of the second radiator 220 being electrically connected to the reference ground 10 via conductive adhesive or a conductive wire.

[0092] In this embodiment, the third end 221 of the second radiator 220 is electrically connected to the reference ground 10, thereby affecting the distribution of the resonant current on the reference ground 10. This causes the resonant current on the reference ground 10 to concentrate at the top of the reference ground 10, suppressing the current distribution at the bottom of the reference ground 10 and increasing the lateral current (illustrated view) distribution on the reference ground 10. This, in turn, increases the upper hemisphere radiation ratio of the radiation pattern when the antenna assembly 20 operates in the target frequency band, improves the directivity of the antenna assembly 20 when supporting the target frequency band, and increases the antenna gain. When the electronic device 1 uses the target frequency band of the antenna assembly 20 to communicate with a satellite, it achieves better communication performance.

[0093] Please refer to it again. Figure 5 The distance Gap2 between the third end 221 and the connecting edge 114 satisfies: 0.15λ≤Gap2≤0.35λ, where λ is the wavelength corresponding to the center frequency point of the target frequency band.

[0094] Optionally, the distance Gap2 between the third end 221 and the connecting edge 114 is 0.25λ.

[0095] The distance from the third end 221 to the connecting edge 114 can be, but is not limited to, 0.15λ, 0.20λ, 0.25λ, 0.30λ, or 0.35λ.

[0096] When the target frequency band is 2GHz, the distance Gap2 from the third end 221 to the connecting edge 114 satisfies: 22.5mm≤Gap2≤52.5mm.

[0097] In the electronic device 1 provided in this application embodiment, when the distance Gap2 between the third end 221 and the connecting edge 114 satisfies: 0.15λ≤Gap2≤0.35λ, the second radiator 220 has a better guiding effect on the radiation pattern of the antenna assembly 20 when supporting the target frequency band. This causes the radiation pattern of the antenna assembly 20 when supporting the target frequency band to face the top of the electronic device 1, further improving the upper hemisphere ratio and circular polarization antenna gain of the electronic device 1 when supporting the target frequency band, thus enhancing the user experience.

[0098] In one embodiment, the distance from the third end 221 to the connecting edge 114 can be, but is not limited to, 0.25λ, so that the second radiator 220 has a better guiding effect on the radiation pattern of the antenna assembly 20 when supporting the target frequency band. This makes the radiation pattern of the antenna assembly 20 when supporting the target frequency band face the top of the electronic device 1, further improving the upper hemisphere ratio and circular polarization antenna gain of the electronic device 1 when supporting the target frequency band, thus improving the user experience.

[0099] Please refer to the following: Figure 6 , Figure 7 , Figure 8 and Figure 9 , Figure 6 A schematic diagram of an electronic device in an unfolded state, provided for another embodiment of this application; Figure 7 for Figure 6 The diagram shows the electronic device in a folded state; Figure 8 for Figure 6 The diagram shows a partial structural schematic of the electronic device.

[0100] Figure 9 for Figure 7 The diagram shows a partial structural representation of the electronic device. In this embodiment, Figure 8 Part of the structure of the electronic device 1 shown is Figure 6 The diagram shows a rear view of the electronic device 1, specifically a schematic view from the housing of the electronic device 1 toward the flexible display screen of the electronic device 1. The electronic device 1 includes a reference ground 10 and an antenna assembly 20. The reference ground 10 includes a bent and connected top edge 111 and a side edge 112. The antenna assembly 20 includes a first radiator 210, a feed source S, and a second radiator 220. The first radiator 210 is disposed corresponding to the side edge 112 and has a first end 211, a return point G1, a feed point P1, and a second end 212, wherein the first end 211 and the second end 212 are free ends, and the return point G1 is electrically connected to the reference ground 10. The feed source S is electrically connected to the feed point P1 and is used to excite the first radiator 210 to generate a first resonant mode and a second resonant mode to support the target frequency band for satellite communication, wherein the first resonant mode is the common mode of the first radiator 210, and the second resonant mode is the differential mode of the first radiator 210. The second radiator 220 is disposed corresponding to the top edge 111 to increase the proportion of the upper hemisphere of the target frequency band.

[0101] Please refer to the previous description for the first radiator 210 and the second radiator 220, which will not be repeated here.

[0102] The first radiator 210 can be a laser direct structural (LDS) radiator, a flexible printed circuit (FPC) radiator, a printed direct structural (PDS) radiator, or a metal dendrite radiator. When the antenna assembly 20 is applied to the electronic device 1, the first radiator 210 can be a mechanical design antenna (MDA) radiator designed using the embedded metal of the electronic device 1 itself. For example, the first radiator 210 can be an antenna radiator designed using the plastic and metal frame of the electronic device 1. Furthermore, the first radiator 210 can also be a metal frame antenna radiator designed with a metal frame. It is understood that this application does not specifically limit the shape, structure, and material of the first radiator 210.

[0103] The return point G1 can be electrically connected to the reference ground 10 in the following ways, but not limited to: the first radiator 210 and the reference ground 10 being an integral structure, with the return point G1 of the first radiator 210 being electrically connected to the reference ground 10 via a connecting branch; or, the return point G1 of the first radiator 210 being electrically connected to the reference ground 10 via a matching circuit, wherein the matching circuit can be a zero-ohm device; or, the return point G1 of the first radiator 210 being electrically connected to the reference ground 10 via conductive adhesive or a conductive wire.

[0104] The second radiator 220 can be a laser direct structural (LDS) radiator, a flexible printed circuit (FPC) radiator, a printed direct structural (PDS) radiator, or a metal branch radiator. When the antenna assembly 20 is applied to the electronic device 1, the second radiator 220 can be a mechanical design antenna (MDA) radiator designed using the embedded metal of the electronic device 1 itself. For example, the second radiator 220 can be an antenna radiator designed using the plastic and metal frame of the electronic device 1. Furthermore, the second radiator 220 can also be a metal frame antenna radiator designed with a metal frame. It is understood that this application does not specifically limit the shape, structure, and material of the second radiator 220. The second radiator 220 can be made of the same material as the first radiator 210, or it can be made of a different material; this is not limited in the embodiments of this application.

[0105] The second radiator 220 is disposed corresponding to the top edge 111. Therefore, the second radiator 220 can guide the radiation pattern of the antenna assembly 20 when it supports the target frequency band, so that the radiation pattern of the antenna assembly 20 when it supports the target frequency band is oriented towards the top of the electronic device 1, thereby increasing the upper hemisphere ratio and circular polarization antenna gain of the electronic device 1 when it supports the target frequency band, and improving the user experience.

[0106] Please see Figure 10 , Figure 10 for Figure 8 The diagram illustrates the current flow corresponding to the first resonant mode in the electronic device shown. The first resonant mode is the common mode of the first radiator 210, also known as the C-mode. Specifically, when the first radiator 210 supports the first resonant mode, a first resonant current is generated on the first radiator 210. This first resonant current includes a first sub-current I11 and a second sub-current I12. The first sub-current I11 is located between the first terminal 211 and the return point G1, and the second sub-current I12 is located between the second terminal 212 and the return point G1. The first resonant mode is a quarter-wavelength mode of the first radiator 210. The half-wavelength period shown in the schematic diagram of this embodiment is illustrated by taking the example where the first sub-current I11 flows from the first terminal 211 to the return point G1, and the second sub-current I12 flows from the second terminal 212 to the return point G1. Understandably, the first resonant current is periodic, and in the next half-wavelength period: the first sub-current I11 flows from the return point G1 to the first end 211, and the second sub-current I12 flows from the return point G1 to the second end 212.

[0107] Please see Figure 11 , Figure 11 for Figure 8 The diagram illustrates the current flow corresponding to the first resonant mode in the electronic device shown. The second resonant mode is the differential mode of the first radiator 210, also known as the D-mode. Specifically, when the first radiator 210 supports the second resonant mode, a second resonant current I2 is generated on the first radiator 210. The second resonant current I2 is distributed between the first terminal 211 and the second terminal 212. The second resonant mode is the quarter-wavelength mode of the first radiator 210. The diagram illustrates the flow of the second resonant current I2 from the first terminal 211 to the second terminal 212 during the current half-wavelength period. It can be understood that the second resonant current I2 is periodic; in the next half-wavelength period, the second resonant current I2 flows from the second terminal 212 to the first terminal 211.

[0108] The first resonant mode is the common mode of the first radiator 210, and the second resonant mode is the differential mode of the first radiator 210. Therefore, the first resonant mode and the second resonant mode are also referred to as the two degenerate modes of the first radiator 210. The electronic device 1 provided in this application, based on the two degenerate modes of the first radiator 210, excites the lateral mode and the balanced mode of the reference ground 10, so that the antenna assembly 20 achieves circularly polarized radiation when supporting the target frequency band.

[0109] When the antenna assembly 20 communicates with a satellite, GPS, Beidou satellites, and Tiantong satellites mostly support circularly polarized electromagnetic waves.

[0110] Therefore, the electronic device 1 provided in this application, based on the two degenerate modes of the first radiator 210, excites the lateral and balanced modes of the reference ground 10, enabling the antenna assembly 20 to achieve circularly polarized radiation when supporting the target frequency band, thus meeting the conditions for satellite communication. The frequency range of the target frequency band can be, but is not limited to, 1.98 GHz to 2.2 GHz. It should be noted that the description of the range in this application includes endpoint values. For example, the frequency of the target frequency band includes the endpoint value of 1.98 GHz and also includes the endpoint value of 2.2 GHz. It should also be noted that when the target frequency band ranges from 1.98 GHz to 2.2 GHz, it can also be a frequency band located between 1.98 GHz and 2.2 GHz.

[0111] Further, in this embodiment, the reference ground 10 includes a first sub-reference ground 110 and a second sub-reference ground 120 that are foldable relative to the folding axis L0. The first sub-reference ground 110 has the top edge 111 and the side edge 112, and the first sub-reference ground 110 also includes a bottom edge 113 and a connecting edge 114. The bottom edge 113 is opposite to and spaced apart from the top edge 111, and the bottom edge 113 is bent and connected to the side edge 112. The connecting edge 114 is bent and connected to both the top edge 111 and the bottom edge 113, and the connecting edge 114 is opposite to and spaced apart from the side edge 112. The connecting edge 114 is opposite to the folding axis L0 and is closer to the folding axis L0 than the side edge 112.

[0112] In this embodiment, the electronic device 1 is a foldable electronic device 1. The electronic device 1 has a folded state and an unfolded state. Understandably, the electronic device 1 also has an intermediate state between the folded and unfolded states. The electronic device 1 includes a reference ground 10, which can be, but is not limited to, the mid-frame of the electronic device 1, a shielding component for the display screen of the electronic device 1, or a battery cover of the electronic device 1, etc. The first sub-reference ground 110 can be rectangular or approximately rectangular, and correspondingly, the second sub-reference ground 120 can be rectangular or approximately rectangular. This embodiment does not limit the shapes of the first sub-reference ground 110 and the second sub-reference ground 120. In this embodiment, the state of the reference ground 10 is the same as the state of the electronic device 1. When the reference ground 10 is in a folded state, the electronic device 1 is in a folded state; correspondingly, when the reference ground 10 is in an unfolded state, the electronic device 1 is in an unfolded state.

[0113] The folded state refers to the state where the first sub-reference ground 110 and the second sub-reference ground 120 are on the upper layer in the thickness direction (Z-axis direction). Specifically, along the Z-axis direction, the first sub-reference ground 110 and the second sub-reference ground 120 are respectively located on the upper and lower layers. The unfolded state refers to the state where the overlapping area between the first sub-reference ground 110 and the second sub-reference ground 120 is less than a preset area. The preset area is, for example, 20%, 15%, 10%, 5%, 1%, 0%, etc., of the area of ​​the first sub-reference ground 110.

[0114] In one embodiment, the first sub-reference ground 110 and the second sub-reference ground 120 are rotatably connected via a pivot 130. From the illustrated perspective, the axis of the pivot 130 is the Y-axis, and the arrangement direction of the first sub-reference ground 110 to the second sub-reference ground 120 is the positive X-axis. The first sub-reference ground 110 and / or the second sub-reference ground 120 rotate around the pivot 130 to a folded or unfolded state. This embodiment uses the rotatable connection of the first sub-reference ground 110 and the second sub-reference ground 120 via the pivot 130 as an example. It can be understood that in other embodiments, the first sub-reference ground 110 and the second sub-reference ground 120 may also be an integral structure, and the connection between the first sub-reference ground 110 and the second sub-reference ground 120 may be flexible and bendable. Understandably, in other embodiments, the first sub-reference ground 110 and the second sub-reference ground 120 may also be connected by sliding or other means, as long as the first sub-reference ground 110 and the second sub-reference ground 120 have a folded state and an unfolded state. The embodiments of this application do not limit the manner in which the first sub-reference ground 110 and the second sub-reference ground 120 change from the folded state to the unfolded state, and from the unfolded state to the folded state.

[0115] In this embodiment, the first sub-reference ground 110 and the second sub-reference ground 120 are left-right folding electronic devices 1. When the electronic device 1 is in the unfolded state and in use, it can be seen from the rear view of the electronic device 1 that the first sub-reference ground 110 is located to the left of the folding axis L0, and the second sub-reference ground 120 is located to the right of the folding axis L0.

[0116] In this embodiment, the first sub-reference ground 110 is illustrated as being located to the left of the folding axis L0 (illustrated view). In other embodiments, the first sub-reference ground 110 may also be located to the right of the folding axis L0. Figure 8 The structure is mirrored along the folding axis L0 to obtain a schematic diagram of the new electronic device 1.

[0117] When the first sub-reference ground 110 is located to the left of the folding axis L0, the electromagnetic wave signal of the antenna assembly 20 supporting the target frequency band is a left-hand circularly polarized electromagnetic wave signal, which facilitates communication with Tiantong satellites that support left-hand circular polarization.

[0118] When the first sub-reference ground 110 is located to the right of the folding axis L0, the electromagnetic wave signal of the antenna assembly 20 supporting the target frequency band is a right-hand circularly polarized electromagnetic wave signal, which facilitates communication with Beidou satellites that support right-hand circular polarization.

[0119] Please refer to further information. Figure 6 and Figure 7 In this embodiment, the electronic device further includes a mid-frame 30. The mid-frame 30 includes a first sub-mid-frame 310 and a second sub-mid-frame 320. The first radiator 210 and the second radiator 220 are formed on the border of the first sub-mid-frame 310 within the mid-frame 30. The frame body of the first sub-mid-frame 310 may constitute the first sub-reference ground 110. Furthermore, the frame body of the second sub-mid-frame 320 may constitute the second sub-reference ground 120.

[0120] Please see Figure 6 and Figure 7In one embodiment, the electronic device 1 further includes a flexible display screen 50. The flexible display screen 50 is disposed on the front side of the reference ground 10 (the front side refers to the direction facing the user when the flexible display screen 50 is in normal use). The flexible display screen 50 includes a first display portion 510, a bending portion 530, and a second display portion 520 arranged sequentially. The first display portion 510 is supported on the first sub-reference ground 110, and the second display portion 520 is supported on the second sub-reference ground 120. The first display portion 510 can be fixed to the first sub-reference ground 110 by means of, but not limited to, adhesives or screws. Correspondingly, the second display portion 520 can be fixed to the second sub-reference ground 120 by means of, but not limited to, adhesives or screws. The bending portion 530 is disposed on the rotating shaft 130, and the connection between the bending portion 530 and the rotating shaft 130 can be a fixed connection or a non-connected state. The bending portion 530 bends when in use with the electronic device 1, and its bending shape includes, but is not limited to, a teardrop shape or a U-shape.

[0121] Please see Figure 6 and Figure 7 The electronic device 1 also includes a housing 60. The housing 60 includes a first housing 610 and a second housing 620. The first housing 610 covers the outside of the first sub-reference ground 110, and the second housing 620 covers the outside of the second sub-reference ground 120. The first housing 610 and the first sub-reference ground 110 can form a receiving space, and the second housing 620 and the second sub-reference ground 120 can form a receiving space. The receiving space is also used to house a floor, a camera module, a receiver module, a battery, various sensors, and other devices.

[0122] Understandably, when the electronic device 1 is in a folded state, the flexible display screen 50 can be covered, while the housing 60 is exposed. In this case, the electronic device 1 can also be referred to as an inward-folding electronic device 1. In other embodiments, when the electronic device 1 is in an unfolded state, the flexible display screen 50 can be exposed, while the housing 60 is covered. In this case, the electronic device 1 can also be referred to as an outward-folding electronic device 1.

[0123] It is understood that the above description is of one embodiment of the electronic device 1 and should not be construed as limiting the electronic device 1 provided in this application. This application does not limit whether the electronic device 1 includes a flexible display screen 50. Furthermore, this application does not limit whether the electronic device 1 includes a housing 60.

[0124] Please see Figure 12 , Figure 12 for Figure 9The diagram shows the dimensions of some components in the electronic device. The distance Gap1 from the return point G1 to the top edge 111 satisfies: 0.25λ≤Gap1≤0.5λ, where λ is the wavelength corresponding to the center frequency of the target frequency band.

[0125] 0.25λ is equivalent to one-quarter of the wavelength (i.e., (1 / 4) * wavelength), and 0.5λ is equivalent to half the wavelength (i.e., (1 / 2) * wavelength). The distance from the return point G1 to the top edge 111 can be, but is not limited to, 0.25λ, 0.30λ, 0.35λ, 0.40λ, 0.45λ, or 0.5λ.

[0126] When the target frequency band is 2GHz, the distance Gap1 from the return point G1 to the top edge 111 satisfies: 37.5mm≤Gap1≤75mm.

[0127] The electronic device 1 provided in this application embodiment has a distance Gap1 from the return point G1 to the top edge 111 that satisfies: 0.25λ≤Gap1≤0.5λ. The amplitude and phase of the first resonant mode and the second resonant mode (also called two degenerate modes) can be adjusted so that the electromagnetic wave signal of the target frequency band is an electromagnetic wave signal with a good degree of circular polarization.

[0128] Please continue reading. Figure 8 The second radiator 220 includes a third end 221 and a fourth end 222. The third end 221 is electrically connected to the reference ground 10 for grounding, and the fourth end 222 is a free end. The fourth end 222 is further away from the side 112 than the third end 221.

[0129] In this embodiment, since the second radiator 220 is disposed corresponding to the first sub-reference ground 110, when the third terminal 221 is electrically connected to the reference ground 10, it is also electrically connected to the first sub-reference ground 110 to ground.

[0130] The third terminal 221 can be electrically connected to the reference ground 10 in the following ways, but not limited to: the second radiator 220 and the first sub-reference ground 110 of the reference ground 10 being an integral structure, with the third terminal 221 of the second radiator 220 being electrically connected to the first sub-reference ground 110 of the reference ground 10 via a connecting branch; or, the return point of the second radiator 220 being electrically connected to the first sub-reference ground 110 of the reference ground 10 via a matching circuit, wherein the matching circuit can be a zero-ohm device; or, the return point of the second radiator 220 being electrically connected to the first sub-reference ground 110 of the reference ground 10 via conductive adhesive or a conductive wire.

[0131] In this embodiment, the third end 221 of the second radiator 220 is electrically connected to the reference ground 10, thereby affecting the distribution of the resonant current on the reference ground 10. This causes the resonant current on the reference ground 10 to concentrate at the top of the reference ground 10, suppressing the current distribution at the bottom of the reference ground 10 and increasing the lateral current (illustrated view) distribution on the reference ground 10. This, in turn, increases the upper hemisphere radiation ratio of the radiation pattern when the antenna assembly 20 operates in the target frequency band, improves the directivity of the antenna assembly 20 when supporting the target frequency band, and increases the antenna gain. When the electronic device 1 uses the target frequency band of the antenna assembly 20 to communicate with a satellite, it achieves better communication performance.

[0132] Please continue reading. Figure 12 The distance Gap2 between the third end 221 and the connecting edge 114 satisfies: 0.15λ≤Gap2≤0.35λ, where λ is the wavelength corresponding to the center frequency point of the target frequency band.

[0133] The distance from the third end 221 to the connecting edge 114 can be, but is not limited to, 0.15λ, 0.20λ, 0.25λ, 0.30λ, or 0.35λ.

[0134] When the target frequency band is 2GHz, the distance Gap2 from the third end 221 to the connecting edge 114 satisfies: 22.5mm≤Gap2≤52.5mm.

[0135] In the electronic device 1 provided in this application embodiment, when the distance Gap2 between the third end 221 and the connecting edge 114 satisfies: 0.15λ≤Gap2≤0.35λ, the second radiator 220 has a better guiding effect on the radiation pattern of the antenna assembly 20 when supporting the target frequency band. This causes the radiation pattern of the antenna assembly 20 when supporting the target frequency band to face the top of the electronic device 1, further improving the upper hemisphere ratio and circular polarization antenna gain of the electronic device 1 when supporting the target frequency band, thus enhancing the user experience.

[0136] In one embodiment, the distance from the third end 221 to the connecting edge 114 can be, but is not limited to, 0.25λ, so that the second radiator 220 has a better guiding effect on the radiation pattern of the antenna assembly 20 when supporting the target frequency band. This makes the radiation pattern of the antenna assembly 20 when supporting the target frequency band face the top of the electronic device 1, further improving the upper hemisphere ratio and circular polarization antenna gain of the electronic device 1 when supporting the target frequency band, thus improving the user experience.

[0137] Please refer to the following: Figure 13 , Figure 14 , Figure 15 and Figure 16 , Figure 13 A schematic diagram of an electronic device in an unfolded state according to another embodiment of this application; Figure 14 for Figure 13 The diagram shows the electronic device in a folded state; Figure 15 for Figure 13 The diagram shows a partial structural schematic of the electronic device. Figure 16 for Figure 14 The diagram shows a partial structural schematic of the electronic device 1. The electronic device 1 includes a reference ground 10 and an antenna assembly 20. The reference ground 10 includes a first sub-reference ground 110 and a second sub-reference ground 120 that are foldable relative to the folding axis L0. The first sub-reference ground includes a first side 115, a top side 111, a second side 116, and a connecting side 114, which are sequentially bent and connected. The connecting side 114 is opposite to and spaced from the top side 111, and the top side 111 is further away from the folding axis L0 than the connecting side 114. The antenna assembly 20 includes a first radiator 210, a feed point S, and a second radiator 220. The first radiator 210 is disposed corresponding to the first side 115 and has a first end 211, a return point G1, a feed point P1, and a second end 212. The first end 211 and the second end 212 are free ends, and the return point G1 is electrically connected to the first sub-reference ground 110. The feed source S is electrically connected to the feed point P1 and is used to excite the first radiator 210 to generate a first resonant mode and a second resonant mode to support the target frequency band for satellite communication. The first resonant mode is the common mode of the first radiator 210, and the second resonant mode is the differential mode of the first radiator 210. The second radiator 220 is positioned corresponding to the top edge 111 to increase the upper hemisphere coverage of the target frequency band.

[0138] The first radiator 210 can be a laser direct structural (LDS) radiator, a flexible printed circuit (FPC) radiator, a printed direct structural (PDS) radiator, or a metal dendrite radiator. When the antenna assembly 20 is applied to the electronic device 1, the first radiator 210 can be a mechanical design antenna (MDA) radiator designed using the embedded metal of the electronic device 1 itself. For example, the first radiator 210 can be an antenna radiator designed using the plastic and metal frame of the electronic device 1. Furthermore, the first radiator 210 can also be a metal frame antenna radiator designed with a metal frame. It is understood that this application does not specifically limit the shape, structure, and material of the first radiator 210.

[0139] The return point G1 can be electrically connected to the reference ground 10 in the following ways, but not limited to: the first radiator 210 and the reference ground 10 being an integral structure, with the return point G1 of the first radiator 210 being electrically connected to the reference ground 10 via a connecting branch; or, the return point G1 of the first radiator 210 being electrically connected to the reference ground 10 via a matching circuit, wherein the matching circuit can be a zero-ohm device; or, the return point G1 of the first radiator 210 being electrically connected to the reference ground 10 via conductive adhesive or a conductive wire.

[0140] The second radiator 220 can be a laser direct structural (LDS) radiator, a flexible printed circuit (FPC) radiator, a printed direct structural (PDS) radiator, or a metal branch radiator. When the antenna assembly 20 is applied to the electronic device 1, the second radiator 220 can be a mechanical design antenna (MDA) radiator designed using the embedded metal of the electronic device 1 itself. For example, the second radiator 220 can be an antenna radiator designed using the plastic and metal frame of the electronic device 1. Furthermore, the second radiator 220 can also be a metal frame antenna radiator designed with a metal frame. It is understood that this application does not specifically limit the shape, structure, and material of the second radiator 220. The second radiator 220 can be made of the same material as the first radiator 210, or it can be made of a different material; this is not limited in the embodiments of this application.

[0141] The second radiator 220 is disposed corresponding to the top edge 111. Therefore, the second radiator 220 can guide the radiation pattern of the antenna assembly 20 when it supports the target frequency band, so that the radiation pattern of the antenna assembly 20 when it supports the target frequency band is oriented towards the top of the electronic device 1, thereby increasing the upper hemisphere ratio and circular polarization antenna gain of the electronic device 1 when it supports the target frequency band, and improving the user experience.

[0142] In this embodiment, the electronic device 1 is a foldable electronic device 1. The electronic device 1 has a folded state and an unfolded state. Understandably, the electronic device 1 also has an intermediate state between the folded and unfolded states. The electronic device 1 includes a reference ground 10, which can be, but is not limited to, the mid-frame of the electronic device 1, a shielding component for the display screen of the electronic device 1, or a battery cover of the electronic device 1, etc. The first sub-reference ground 110 can be rectangular or approximately rectangular, and correspondingly, the second sub-reference ground 120 can be rectangular or approximately rectangular. This embodiment does not limit the shapes of the first sub-reference ground 110 and the second sub-reference ground 120. In this embodiment, the state of the reference ground 10 is the same as the state of the electronic device 1. When the reference ground 10 is in a folded state, the electronic device 1 is in a folded state; correspondingly, when the reference ground 10 is in an unfolded state, the electronic device 1 is in an unfolded state.

[0143] The folded state refers to the state where the first sub-reference ground 110 and the second sub-reference ground 120 are on the upper layer in the thickness direction (Z-axis direction). Specifically, along the Z-axis direction, the first sub-reference ground 110 and the second sub-reference ground 120 are respectively located on the upper and lower layers. The unfolded state refers to the state where the overlapping area between the first sub-reference ground 110 and the second sub-reference ground 120 is less than a preset area. The preset area is, for example, 20%, 15%, 10%, 5%, 1%, 0%, etc., of the area of ​​the first sub-reference ground 110.

[0144] In one embodiment, the first sub-reference ground 110 and the second sub-reference ground 120 are rotatably connected via a pivot 130. From the illustrated perspective, the axis of the pivot 130 is the X-axis, and the direction from the second sub-reference ground 120 to the first sub-reference ground 110 is the positive Y-axis. The first sub-reference ground 110 and / or the second sub-reference ground 120 can rotate around the pivot 130 to a folded or unfolded state. This embodiment uses the rotatable connection of the first sub-reference ground 110 and the second sub-reference ground 120 via the pivot 130 as an example. It can be understood that in other embodiments, the first sub-reference ground 110 and the second sub-reference ground 120 may also be an integral structure, and the connection between the first sub-reference ground 110 and the second sub-reference ground 120 may be flexible and bendable. Understandably, in other embodiments, the first sub-reference ground 110 and the second sub-reference ground 120 may also be connected by sliding or other means, as long as the first sub-reference ground 110 and the second sub-reference ground 120 have a folded state and an unfolded state. The embodiments of this application do not limit the manner in which the first sub-reference ground 110 and the second sub-reference ground 120 change from the folded state to the unfolded state, and from the unfolded state to the folded state.

[0145] In this embodiment, the first sub-reference ground 110 and the second sub-reference ground 120 are the electronic device 1 when folded left and right. When the electronic device 1 is in the unfolded state and in use, it can be seen from the rear view of the electronic device 1 that the first sub-reference ground 110 is located to the left of the folding axis L0, and the second sub-reference ground 120 is located to the right of the folding axis L0.

[0146] In this embodiment, the first sub-reference ground 110 is located above the folding axis L0 (illustrated view), and the first radiator 210 is located to the left of the first sub-reference ground 110 (illustrated view). This embodiment will be illustrated in the following way. Figure 15 The structure is mirrored along the centerline (i.e., the Y-axis) perpendicular to the folding axis L0 to obtain a schematic diagram of the structure of the new electronic device 1. In the new electronic device 1, the first radiator 210 is located to the right of the first sub-reference ground 110.

[0147] When the first sub-reference ground 110 is located above the folding axis L0 and to the left of the first sub-reference ground 110, the electromagnetic wave signal of the antenna assembly 20 supporting the target frequency band is a left-hand circularly polarized electromagnetic wave signal, which facilitates communication with Tiantong satellites that support left-hand circular polarization.

[0148] When the first sub-reference ground 110 is located above the folding axis L0 and to the right of the first sub-reference ground 110, the electromagnetic wave signal of the antenna assembly 20 supporting the target frequency band is a right-hand circularly polarized electromagnetic wave signal, which facilitates communication with Beidou satellites that support right-hand circular polarization.

[0149] Please see Figure 13 and Figure 14 In one embodiment, the electronic device 1 further includes a flexible display screen 50. The flexible display screen 50 is disposed on the front side of the reference ground 10 (the front side refers to the direction facing the user when the flexible display screen 50 is in normal use). The flexible display screen 50 includes a first display portion 510, a bending portion 530, and a second display portion 520 arranged sequentially. The first display portion 510 is supported on the first sub-reference ground 110, and the second display portion 520 is supported on the second sub-reference ground 120. The first display portion 510 can be fixed to the first sub-reference ground 110 by means of, but not limited to, adhesives or screws. Correspondingly, the second display portion 520 can be fixed to the second sub-reference ground 120 by means of, but not limited to, adhesives or screws. The bending portion 530 is disposed on the rotating shaft 130, and the connection between the bending portion 530 and the rotating shaft 130 can be a fixed connection or a non-connected state. The bending portion 530 bends when in use with the electronic device 1, and its bending shape includes, but is not limited to, a teardrop shape or a U-shape.

[0150] Please see Figure 13 and Figure 14 The electronic device 1 also includes a housing 60. The housing 60 includes a first housing 610 and a second housing 620. The first housing 610 covers the outside of the first sub-reference ground 110, and the second housing 620 covers the outside of the second sub-reference ground 120. The first housing 610 and the first sub-reference ground 110 can form a receiving space, and the second housing 620 and the second sub-reference ground 120 can form a receiving space. The receiving space is also used to house a floor, a camera module, a receiver module, a battery, various sensors, and other devices.

[0151] Understandably, when the electronic device 1 is in a folded state, the flexible display screen 50 can be covered, while the housing 60 is exposed. In this case, the electronic device 1 can also be referred to as an inward-folding electronic device 1. In other embodiments, when the electronic device 1 is in an unfolded state, the flexible display screen 50 can be exposed, while the housing 60 is covered. In this case, the electronic device 1 can also be referred to as an outward-folding electronic device 1.

[0152] It is understood that the above description is of one embodiment of the electronic device 1 and should not be construed as limiting the electronic device 1 provided in this application. This application does not limit whether the electronic device 1 includes a flexible display screen 50. Furthermore, this application does not limit whether the electronic device 1 includes a housing 60.

[0153] Please see Figure 17 , Figure 17 for Figure 15 The diagram illustrates the current flow corresponding to the first resonant mode in the electronic device shown. The first resonant mode is the common mode of the first radiator 210, also known as the C-mode. Specifically, when the first radiator 210 supports the first resonant mode, a first resonant current is generated on the first radiator 210. This first resonant current includes a first sub-current I11 and a second sub-current I12. The first sub-current I11 is located between the first terminal 211 and the return point G1, and the second sub-current I12 is located between the second terminal 212 and the return point G1. The first resonant mode is a quarter-wavelength mode of the first radiator 210. The half-wavelength period shown in the schematic diagram of this embodiment is illustrated by taking the example where the first sub-current I11 flows from the first terminal 211 to the return point G1, and the second sub-current I12 flows from the second terminal 212 to the return point G1. Understandably, the first resonant current is periodic, and in the next half-wavelength period: the first sub-current I11 flows from the return point G1 to the first end 211, and the second sub-current I12 flows from the return point G1 to the second end 212.

[0154] Please see Figure 18 , Figure 18 for Figure 15 The diagram illustrates the current flow corresponding to the first resonant mode in the electronic device shown. The second resonant mode is the differential mode of the first radiator 210, also known as the D-mode. Specifically, when the first radiator 210 supports the second resonant mode, a second resonant current is generated on the first radiator 210. The second resonant current is distributed between the first terminal 211 and the second terminal 212. The second resonant mode is the quarter-wavelength mode of the first radiator 210. The diagram illustrates the flow of the second resonant current from the first terminal 211 to the second terminal 212 during the current half-wavelength period. It can be understood that the second resonant current is periodic; in the next half-wavelength period, the second resonant current flows from the second terminal 212 to the first terminal 211.

[0155] The first resonant mode is the common mode of the first radiator 210, and the second resonant mode is the differential mode of the first radiator 210. Therefore, the first resonant mode and the second resonant mode are also referred to as the two degenerate modes of the first radiator 210. The electronic device 1 provided in this application, based on the two degenerate modes of the first radiator 210, excites the lateral mode and the balanced mode of the reference ground 10, so that the antenna assembly 20 achieves circularly polarized radiation when supporting the target frequency band.

[0156] When the antenna assembly 20 communicates with a satellite, GPS, Beidou satellites, and Tiantong satellites mostly support circularly polarized electromagnetic waves.

[0157] Therefore, the electronic device 1 provided in this application, based on the two degenerate modes of the first radiator 210, excites the lateral and balanced modes of the reference ground 10, enabling the antenna assembly 20 to achieve circularly polarized radiation when supporting the target frequency band, thus meeting the conditions for satellite communication. The frequency range of the target frequency band can be, but is not limited to, 1.98 GHz to 2.2 GHz. It should be noted that the description of the range in this application includes endpoint values. For example, the frequency of the target frequency band includes the endpoint value of 1.98 GHz and also includes the endpoint value of 2.2 GHz. It should also be noted that when the target frequency band ranges from 1.98 GHz to 2.2 GHz, it can also be a frequency band located between 1.98 GHz and 2.2 GHz.

[0158] In summary, the electronic device 1 provided in this application has a first radiator 210 disposed on the first side 115 of the first sub-reference ground 110 of the reference ground 10. The first radiator 210 can support the first resonant mode and the second resonant mode. Based on the first resonant mode and the second resonant mode of the first radiator 210, the lateral mode and the balanced mode of the reference ground 10 are excited, so that the antenna assembly 20 achieves circularly polarized radiation when supporting the target frequency band, which can meet the conditions for satellite communication. The second radiator 220 is disposed on the top edge 111. Therefore, the second radiator 220 can guide the radiation pattern of the antenna assembly 20 when supporting the target frequency band, so that the radiation pattern of the antenna assembly 20 when supporting the target frequency band faces the top of the electronic device 1, thereby increasing the upper hemisphere ratio and the circularly polarized antenna gain when the electronic device 1 supports the target frequency band, and improving the user experience.

[0159] Please see Figure 19 , Figure 19 for Figure 16The diagram shows the dimensions of some components in the electronic device. The distance Gap1' from the return point G1 to the top edge 111 satisfies: 0.15λ≤Gap1'≤0.3λ, where λ is the wavelength corresponding to the center frequency of the target frequency band.

[0160] The distance Gap1' from the return point G1 to the top edge 111 can be, but is not limited to, 0.15λ, 0.20λ, 0.25λ, or 0.3λ.

[0161] When the target frequency band is 2GHz, the distance Gap1' from the return point G1 to the top edge 111 satisfies: 22.5mm≤Gap1≤45mm.

[0162] The electronic device 1 provided in this application embodiment has a distance Gap1 from the return point G1 to the top edge 111 that satisfies: 0.15λ≤Gap1'≤0.3λ. The amplitude and phase of the first resonant mode and the second resonant mode (also called two degenerate modes) can be adjusted so that the electromagnetic wave signal of the target frequency band is an electromagnetic wave signal with a good degree of circular polarization.

[0163] Please continue reading. Figure 15 The second radiator 220 includes a third end 221 and a fourth end 222. The third end 221 is electrically connected to the first sub-reference ground 110 for grounding. The fourth end 222 is a free end and is further away from the first side 115 than the third end 221.

[0164] In this embodiment, since the second radiator 220 is disposed corresponding to the first sub-reference ground 110, when the third terminal 221 is electrically connected to the reference ground 10, it is also electrically connected to the first sub-reference ground 110 to ground.

[0165] The third terminal 221 can be electrically connected to the reference ground 10 in the following ways, but not limited to: the second radiator 220 and the first sub-reference ground 110 of the reference ground 10 being an integral structure, with the third terminal 221 of the second radiator 220 being electrically connected to the first sub-reference ground 110 of the reference ground 10 via a connecting branch; or, the return point of the second radiator 220 being electrically connected to the first sub-reference ground 110 of the reference ground 10 via a matching circuit, wherein the matching circuit can be a zero-ohm device; or, the return point of the second radiator 220 being electrically connected to the first sub-reference ground 110 of the reference ground 10 via conductive adhesive or a conductive wire.

[0166] In this embodiment, the third end 221 of the second radiator 220 is electrically connected to the reference ground 10, thereby affecting the distribution of the resonant current on the reference ground 10. This causes the resonant current on the reference ground 10 to concentrate at the top of the reference ground 10, suppressing the current distribution at the bottom of the reference ground 10 and increasing the lateral current (illustrated view) distribution on the reference ground 10. This, in turn, increases the upper hemisphere radiation ratio of the radiation pattern when the antenna assembly 20 operates in the target frequency band, improves the directivity of the antenna assembly 20 when supporting the target frequency band, and increases the antenna gain. When the electronic device 1 uses the target frequency band of the antenna assembly 20 to communicate with a satellite, it achieves better communication performance.

[0167] Please continue reading. Figure 19 The distance Gap2' between the third end 221 and the second side 116 satisfies: 0.15λ≤Gap2'≤0.35λ, where λ is the wavelength corresponding to the center frequency point of the target frequency band.

[0168] The distance from the third end 221 to the second side 116 can be, but is not limited to, 0.15λ, 0.20λ, 0.25λ, 0.30λ, or 0.35λ.

[0169] When the target frequency band is 2GHz, the distance Gap2' from the third end 221 to the second side 116 satisfies: 22.5mm≤Gap2'≤52.5mm.

[0170] In the electronic device 1 provided in this application embodiment, when the distance Gap2 between the third end 221 and the second side 116 satisfies: 0.15λ≤Gap2≤0.35λ, the second radiator 220 has a better guiding effect on the radiation pattern of the antenna assembly 20 when supporting the target frequency band. This causes the radiation pattern of the antenna assembly 20 when supporting the target frequency band to face the top of the electronic device 1, further improving the upper hemisphere ratio and circular polarization antenna gain of the electronic device 1 when supporting the target frequency band, thus enhancing the user experience.

[0171] In one embodiment, the distance from the third end 221 to the second side 116 can be, but is not limited to, 0.25λ, so that the second radiator 220 has a better guiding effect on the radiation pattern of the antenna assembly 20 when supporting the target frequency band. This makes the radiation pattern of the antenna assembly 20 when supporting the target frequency band face the top of the electronic device 1, further improving the upper hemisphere ratio and circular polarization antenna gain of the electronic device 1 when supporting the target frequency band, thus improving the user experience.

[0172] Next, the performance of the electronic device 1 provided in the embodiments of this application will be simulated.

[0173] Please see Figure 20 and Figure 21 , Figure 20 This is another embodiment of the present application. Figure 1 The diagram shows a partial structural schematic of the electronic device. Figure 21 for Figure 20 The diagram shows a simulation model of the electronic device. In this embodiment, electronic device 1 and... Figure 2 The electronic device 1 shown is basically the same, except that in this embodiment, the antenna assembly 20 further includes a first matching circuit M1 and a second matching circuit M2. The feed source S is electrically connected to the first matching circuit M1 to the feed point P1. The first matching circuit M1 is used to tune the target frequency band. The second matching circuit M2 is electrically connected to the second radiator 220, and the second matching circuit M2 is used to ensure that the entire structure formed by the second radiator 220 and the second matching circuit M2 has a preset electrical length according to preset parameters.

[0174] It should be noted that the preceding embodiments illustrate the antenna assembly 20 by including a first matching circuit M1 and a second matching circuit M2. It can be understood that in other embodiments, the antenna assembly 20 may not include the first matching circuit M1 and / or the second matching circuit M2.

[0175] Figure 21 The simulation model diagram only shows the first radiator 210 and the first matching circuit M1. Figure 21 In the simulation, the antenna assembly 20 is used as an example to demonstrate its operation at 2 GHz.

[0176] Please refer to the following: Figure 22 , Figure 23 , Figure 24 and Figure 25 , Figure 22 for Figure 20 The antenna assembly in the electronic device shown supports a three-dimensional radiation pattern when it supports the target frequency band; Figure 23 for Figure 20 The antenna assembly in the electronic device shown is the overall two-dimensional radiation pattern of the antenna assembly when it supports the target frequency band in the Phi-Theta two-dimensional coordinate system; Figure 24 for Figure 20 The antenna assembly in the electronic device shown is a left-handed polarized two-dimensional radiation pattern in the Phi-Theta two-dimensional coordinate system; Figure 25 for Figure 20 The antenna assembly of the electronic device shown is depicted in a front view, with a right-handed circular polarization in the Phi-Theta two-dimensional coordinate system. It should be noted that... Figure 20 The electronic device 1 shown is Figure 1 The diagram shows a rear view of the electronic device 1, that is, a schematic diagram from the housing (also called the battery cover) of the electronic device 1 toward the display screen of the electronic device 1. Correspondingly, the so-called front view refers to a schematic diagram from the display screen of the electronic device 1 toward the housing of the electronic device 1.

[0177] exist Figure 23 , Figure 24 and Figure 25 In the diagram, the horizontal axis represents Phi, and the vertical axis represents Theta. In the figure, the antenna assembly 20 with a Theta coordinate between 0° and 90° and a +Phi between -180° and 180° represents the upper hemisphere of the radiation pattern when it supports the target frequency band; the antenna assembly 20 with a Theta coordinate between 90° and 180° and a +Phi between -180° and 180° represents the lower hemisphere of the radiation pattern when it supports the target frequency band. Specifically, in... Figure 24 In the simulation diagram shown, the region where Phi reaches its maximum value is between -180° and 0°, indicating a left-hand circular polarization pattern. That is, as can be seen from the rear view of electronic device 1, the target frequency band supported by antenna assembly 20 is left-hand circular polarization. Correspondingly, the two-dimensional radiation pattern obtained in the front view is... Figure 25 If the region where the Phi value is maximum is located between 0° and 180°, it indicates that the radiation pattern is right-handed. That is, as can be seen from the front view of the electronic device 1, the target frequency band supported by the antenna assembly 20 is right-handed circular polarization.

[0178] Please refer to the following: Figure 26 , Figure 26 for Figure 20 The diagram shows the current distribution of the antenna assembly of the electronic device under different phases. The simulation is based on the antenna assembly 20 operating at 2GHz as an example. Figure 26 (a) in the diagram represents the current distribution when the phase of the excitation signal generated by the feed S is 0°; Figure 26 (b) in the diagram represents the current distribution when the phase of the excitation signal generated by the feed S is 90°. Figure 26 (c) in the diagram represents the current distribution when the phase of the excitation signal generated by the feed S is 180°. Figure 26 In the diagram, (d) represents the current distribution when the phase of the excitation signal generated by the feed S is 270°. Figure 26 In (a), (b), (c), and (d), the main direction of current flow is indicated by the thickest black arrow. Figure 26 As can be seen in (a), (b), (c), and (d), the antenna assembly 20 produces left-hand circularly polarized radiation.

[0179] Please see Figure 27 , Figure 27 for Figure 20The diagram shows the upper hemisphere occupancy percentage when the antenna assembly of the electronic device supports the target frequency band. In this diagram, the ratio of the vertical coordinate value of point 1 to the vertical coordinate value of point 2 represents the upper hemisphere occupancy percentage. Therefore, it can be seen that when the antenna assembly 20 of the electronic device 1 provided in this embodiment supports the target frequency band, the upper hemisphere occupancy percentage is 81%.

[0180] In summary, when the antenna assembly 20 of the electronic device 1 provided in this application supports the target frequency band, it is left-hand circularly polarized and the upper hemisphere accounts for a relatively high proportion.

[0181] Please refer to the following: Figure 28 , Figure 29 , Figure 30 and Figure 31 , Figure 28 for Figure 9 The antenna assembly in the electronic device shown supports a three-dimensional radiation pattern when it supports the target frequency band; Figure 29 for Figure 9 The antenna assembly in the electronic device shown is the overall two-dimensional radiation pattern of the antenna assembly when it supports the target frequency band in the Phi-Theta two-dimensional coordinate system; Figure 30 for Figure 9 The antenna assembly in the electronic device shown is a left-handed polarized two-dimensional radiation pattern in the Phi-Theta two-dimensional coordinate system; Figure 31 for Figure 9 The antenna assembly of the electronic device shown is depicted in a front view, with a right-handed circular polarization in the Phi-Theta two-dimensional coordinate system. It should be noted that... Figure 9 The electronic device 1 shown is Figure 1 The diagram shows a rear view of the electronic device 1, that is, a schematic diagram from the housing (also called the battery cover) of the electronic device 1 toward the display screen of the electronic device 1. Correspondingly, the so-called front view refers to a schematic diagram from the display screen of the electronic device 1 toward the housing of the electronic device 1.

[0182] exist Figure 29 , Figure 30 and Figure 31 In the diagram, the horizontal axis represents Phi, and the vertical axis represents Theta. In the figure, the antenna assembly 20 with a Theta coordinate between 0° and 90° and a +Phi between -180° and 180° represents the upper hemisphere of the radiation pattern when it supports the target frequency band; the antenna assembly 20 with a Theta coordinate between 90° and 180° and a +Phi between -180° and 180° represents the lower hemisphere of the radiation pattern when it supports the target frequency band. Specifically, in... Figure 30In the simulation diagram shown, the region where Phi reaches its maximum value is between -180° and 0°, indicating a left-hand circular polarization pattern. That is, as can be seen from the rear view of electronic device 1, the target frequency band supported by antenna assembly 20 is left-hand circular polarization. Correspondingly, the two-dimensional radiation pattern obtained in the front view is... Figure 31 If the region where the Phi value is maximum is located between 0° and 180°, it indicates that the radiation pattern is right-handed. That is, as can be seen from the front view of the electronic device 1, the target frequency band supported by the antenna assembly 20 is right-handed circular polarization.

[0183] Please see Figure 32 , Figure 32 for Figure 9 The diagram shows the upper hemisphere occupancy percentage when the antenna assembly of the electronic device supports the target frequency band. In this diagram, the ratio of the vertical coordinate value of point 1 to the vertical coordinate value of point 2 represents the upper hemisphere occupancy percentage. Therefore, it can be seen that when the antenna assembly 20 of the electronic device 1 provided in this embodiment supports the target frequency band, the upper hemisphere occupancy percentage is 80%.

[0184] In summary, when the antenna assembly 20 of the electronic device 1 provided in this application supports the target frequency band, it is left-hand circularly polarized and the upper hemisphere accounts for a relatively high proportion.

[0185] Please refer to the following: Figure 33 , Figure 34 , Figure 35 and Figure 36 , Figure 33 for Figure 16 The antenna assembly in the electronic device shown supports a three-dimensional radiation pattern when it supports the target frequency band; Figure 34 for Figure 16 The antenna assembly in the electronic device shown is the overall two-dimensional radiation pattern of the antenna assembly when it supports the target frequency band in the Phi-Theta two-dimensional coordinate system; Figure 35 for Figure 16 The antenna assembly in the electronic device shown is a left-handed polarized two-dimensional radiation pattern in the Phi-Theta two-dimensional coordinate system; Figure 36 for Figure 16 The antenna assembly of the electronic device shown is depicted in a front view, with a right-handed circular polarization in the Phi-Theta two-dimensional coordinate system. It should be noted that... Figure 16 The electronic device 1 shown is Figure 1 The diagram shows a rear view of the electronic device 1, that is, a schematic diagram from the housing (also called the battery cover) of the electronic device 1 toward the display screen of the electronic device 1. Correspondingly, the so-called front view refers to a schematic diagram from the display screen of the electronic device 1 toward the housing of the electronic device 1.

[0186] exist Figure 34 , Figure 35 and Figure 36 In the diagram, the horizontal axis represents Phi, and the vertical axis represents Theta. In the figure, the antenna assembly 20 with a Theta coordinate between 0° and 90° and a +Phi between -180° and 180° represents the upper hemisphere of the radiation pattern when it supports the target frequency band; the antenna assembly 20 with a Theta coordinate between 90° and 180° and a +Phi between -180° and 180° represents the lower hemisphere of the radiation pattern when it supports the target frequency band. Specifically, in... Figure 35 In the simulation diagram shown, the region where Phi reaches its maximum value is between -180° and 0°, indicating a left-hand circular polarization pattern. That is, as can be seen from the rear view of electronic device 1, the target frequency band supported by antenna assembly 20 is left-hand circular polarization. Correspondingly, the two-dimensional radiation pattern obtained in the front view is... Figure 36 If the region where the Phi value is maximum is located between 0° and 180°, it indicates that the radiation pattern is right-handed. That is, as can be seen from the front view of the electronic device 1, the target frequency band supported by the antenna assembly 20 is right-handed circular polarization.

[0187] Please see Figure 37 , Figure 37 for Figure 16 The diagram shows the upper hemisphere occupancy percentage when the antenna assembly of the electronic device supports the target frequency band. In this diagram, the ratio of the vertical coordinate value of point 1 to the vertical coordinate value of point 2 represents the upper hemisphere occupancy percentage. Therefore, it can be seen that when the antenna assembly 20 of the electronic device 1 provided in this embodiment supports the target frequency band, the upper hemisphere occupancy percentage is 75%.

[0188] In summary, when the antenna assembly 20 of the electronic device 1 provided in this application supports the target frequency band, it is left-hand circularly polarized and the upper hemisphere accounts for a relatively high proportion.

[0189] In summary, this application provides a circularly polarized antenna scheme with a high upper hemisphere ratio. The first radiator 210 (also called the main radiator or main antenna) generates a first resonant mode and a second resonant mode (also called two degenerate modes), and excites the lateral mode and balanced mode of the reference ground 10. Furthermore, by setting the position of the first radiator 210 (i.e., selecting Gap1 and Gap1'), the amplitude and phase of the two degenerate modes are adjusted to achieve circularly polarized radiation. In addition, based on the guiding effect of the second radiator 220 (also called the parasitic radiator or parasitic antenna) located at the top edge 111, the radiation pattern of the antenna assembly 20 supporting the target frequency band is oriented towards the top edge 111, that is, towards the top of the electronic device 1. Therefore, the electronic device 1 provided by this application can improve the upper hemisphere ratio and circularly polarized antenna gain when the antenna assembly 20 supports the target frequency band, resulting in better communication performance and user experience when communicating with satellites using the antenna assembly 20.

[0190] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, and such improvements and refinements are also considered to be within the protection scope of this application.

Claims

1. An electronic device, characterized in that, The electronic device includes a reference ground and an antenna assembly, wherein the reference ground includes a top edge and a side edge that are bent and connected; the antenna assembly includes: A first radiator is disposed corresponding to the side. The first radiator has a first end, a return point, a feed point, and a second end, wherein the first end and the second end are free ends, and the return point is electrically connected to the reference ground. A feed source, electrically connected to the feed point, is used to excite the first radiator to generate a first resonant mode and a second resonant mode to support the target frequency band for satellite communication. The reference ground is also excited to generate a lateral mode and a balanced mode, enabling the antenna assembly to achieve circularly polarized radiation when supporting the target frequency band. The first resonant mode is the common mode of the first radiator, and the second resonant mode is the differential mode of the first radiator. A second radiator is disposed corresponding to the top edge to increase the upper hemisphere proportion of the target frequency band. The second radiator guides the radiation pattern of the antenna assembly when supporting the target frequency band, so that the radiation pattern of the antenna assembly supporting the target frequency band faces the top of the electronic device.

2. The electronic device as claimed in claim 1, characterized in that, The reference ground is a non-foldable reference ground, and the reference ground also includes a connecting edge and a bottom edge. The connecting edge is opposite to the side edge and spaced apart, and the connecting edge is bent and connected to the top edge. The bottom edge is opposite to the top edge and spaced apart, and the bottom edge is bent and connected to both the side edge and the connecting edge. The length of the top edge is less than the length of the side edge and the length of the top edge is less than the length of the connecting edge.

3. The electronic device as claimed in claim 1, characterized in that, The reference ground includes a first sub-reference ground and a second sub-reference ground that are foldable relative to the folding axis. The first sub-reference ground has the top edge and the side edge, and the first sub-reference ground also includes a bottom edge and a connecting edge. The bottom edge is opposite to the top edge and spaced apart, and the bottom edge is bent and connected to the side edge. The connecting edge is bent and connected to the top edge and the bottom edge respectively, and the connecting edge is opposite to the side edge and spaced apart. The connecting edge is opposite to the folding axis and the connecting edge is closer to the folding axis than the side edge.

4. The electronic device as described in claim 2 or 3, characterized in that, The distance Gap1 from the return point to the top edge satisfies: 0.25λ≤Gap1≤0.5λ, where λ is the wavelength corresponding to the center frequency point of the target frequency band.

5. The electronic device as described in claim 2 or 3, characterized in that, The second radiator includes a third end and a fourth end. The third end is electrically connected to the reference ground for grounding, and the fourth end is a free end that is further away from the side than the third end.

6. The electronic device as claimed in claim 5, characterized in that, The distance Gap2 between the third end and the connecting edge satisfies: 0.15λ≤Gap2≤0.35λ, where λ is the wavelength corresponding to the center frequency point of the target frequency band.

7. An electronic device, characterized in that, The electronic device includes a reference ground and an antenna assembly. The reference ground includes a first sub-reference ground and a second sub-reference ground that are foldable relative to a folding axis. The first sub-reference ground includes a first side, a top side, a second side, and a connecting side that are bent and connected in sequence. The connecting side is opposite to the top side and spaced apart, and the top side is further away from the folding axis than the connecting side. The antenna assembly includes: A first radiator is disposed corresponding to the first side. The first radiator has a first end, a return point, a feed point, and a second end, wherein the first end and the second end are free ends, and the return point is electrically connected to the first sub-reference ground. A feed source, electrically connected to the feed point, is used to excite the first radiator to generate a first resonant mode and a second resonant mode to support the target frequency band for satellite communication. The reference ground is also excited to generate a lateral mode and a balanced mode, enabling the antenna assembly to achieve circularly polarized radiation when supporting the target frequency band. The first resonant mode is the common mode of the first radiator, and the second resonant mode is the differential mode of the first radiator. A second radiator is disposed corresponding to the top edge to increase the upper hemisphere proportion of the target frequency band. The second radiator guides the radiation pattern of the antenna assembly when supporting the target frequency band, so that the radiation pattern of the antenna assembly supporting the target frequency band faces the top of the electronic device.

8. The electronic device as claimed in claim 7, characterized in that, The distance Gap1' from the return point to the top edge satisfies: 0.15λ≤Gap1'≤0.3λ, where λ is the wavelength corresponding to the center frequency point of the target frequency band.

9. The electronic device as claimed in claim 7, characterized in that, The second radiator includes a third end and a fourth end. The third end is electrically connected to the first sub-reference ground for grounding, and the fourth end is a free end that is further away from the first side than the third end.

10. The electronic device as claimed in claim 9, characterized in that, The distance Gap2' between the third end and the second side satisfies: 0.15λ≤Gap2'≤0.35λ, where λ is the wavelength corresponding to the center frequency point of the target frequency band.

Images