Electronic device
By designing an antenna device comprising a first floor, a first radiator, and a second radiator, the problem of poor circular polarization performance of electronic devices was solved, enabling satellite communication in dual radiation directions and improving satellite communication performance and call quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
- Filing Date
- 2023-12-29
- Publication Date
- 2026-07-21
Smart Images
Figure CN117748169B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of communication technology, and in particular to an electronic device. Background Technology
[0002] With the development of communication technology, electronic devices such as smartphones are able to perform more and more functions, and the communication modes of electronic devices are becoming more diversified.
[0003] Satellites typically transmit signals using circular polarization. However, electronic devices such as smartphones have poor circular polarization and directional performance, making it difficult for them to communicate with satellites. Summary of the Invention
[0004] This application provides an electronic device that exhibits superior circular polarization performance in multiple directions and superior satellite communication performance.
[0005] This application provides an antenna device, including:
[0006] A first floor includes a first side and a second side that are bent and connected, the first side extending along a first direction and the second side extending along a second direction perpendicular to the first direction;
[0007] A first radiator extends along the first direction and is spaced apart from the first side;
[0008] The signal source is electrically connected to the first radiator;
[0009] The second radiator is arranged at intervals with the first radiator along a third direction perpendicular to both the first and second directions. The second radiator extends along the first direction and includes a first end and a second end. On the plane containing the first radiator, the orthographic projection of the first end overlaps with the first radiator, and the orthographic projection of the second end is spaced apart from the first radiator.
[0010] A second floor, spaced apart from the first floor along the third direction, has its second end electrically connected to the second floor to achieve grounding; wherein...
[0011] The signal source is used to excite the first radiator and the first floor to jointly form a circularly polarized wave in a first main radiation direction, and to excite the first radiator and the second radiator to jointly form a circularly polarized wave in a second main radiation direction, so that the electronic device supports satellite communication signals; wherein, the first main radiation direction is a direction perpendicular to the first floor and away from the second floor from the first floor, and the second main radiation direction is a direction from the center of the first floor to the side where the first edge is located.
[0012] The electronic device of this application, under the excitation of a signal source, allows the first ground plane to generate polarization currents along a first direction and a second direction under the action of the first radiator. The resonant currents on the first ground plane can be orthogonally distributed, enabling the first radiator and the first ground plane to form a circularly polarized beam perpendicular to the first main radiation direction of the first ground plane. Simultaneously, the first radiator and the second radiator are arranged along a third direction, and together they can form a circularly polarized beam from the center of the first ground plane to the side where the first edge is located in the second main radiation direction. Thus, the satellite antenna formed by the first ground plane, the first radiator, and the second radiator of this application can transmit and receive satellite communication signals with dual radiation directions in a circularly polarized manner. On the one hand, the circularly polarized transmission and reception method can improve the satellite communication performance between the satellite antenna and the communication satellite, thereby improving the satellite communication performance and satellite call quality. On the other hand, the satellite communication signal of this application has dual radiation directions, resulting in superior antenna performance in both main radiation directions, and the antenna performance of the satellite communication signal of this application is even better. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of 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] Figure 1 This is a schematic diagram of a first structure of an electronic device provided in an embodiment of this application.
[0015] Figure 2 for Figure 1 The diagram shows the structure of the electronic device in another state.
[0016] Figure 3 for Figure 1 A schematic diagram of an electric field distribution for an electronic device is shown.
[0017] Figure 4 for Figure 1 The diagram shows an electric field distribution when the electronic device does not include a second radiator.
[0018] Figure 5 for Figure 1 A schematic diagram of the current distribution on the first ground of the electronic device shown.
[0019] Figure 6 for Figure 1 The radiation pattern formed by the first floor of the electronic device shown.
[0020] Figure 7 for Figure 1The diagram shows the total field radiation pattern generated by the electronic device.
[0021] Figure 8 for Figure 1 The diagram shows the left-handed circular polarization pattern formed by the electronic device.
[0022] Figure 9 for Figure 1 The diagram shows the right-hand circular polarization pattern formed by the electronic device.
[0023] Figure 10 for Figure 1 The diagram shows a 3D schematic of the axial ratio of the electronic device.
[0024] Figure 11 for Figure 1 A schematic diagram of the electronic device from another direction.
[0025] Figure 12 This is a schematic diagram of a second structure of an electronic device provided in an embodiment of this application.
[0026] Figure 13 for Figure 12 A schematic diagram of the current distribution in the first electric field of the electronic device shown.
[0027] Figure 14 for Figure 12 The radiation pattern formed by the first floor of the electronic device shown.
[0028] Figure 15 This is a schematic diagram of a third structure of an electronic device provided in an embodiment of this application.
[0029] Figure 16 This is a schematic diagram of a fourth structure of an electronic device provided in an embodiment of this application.
[0030] Figure 17 for Figure 16 The diagram shows the total field radiation pattern of the electronic device.
[0031] Figure 18 for Figure 16 The diagram shows the left-handed circular polarization pattern formed by the electronic device.
[0032] Figure 19 for Figure 16 The diagram shows the right-hand circular polarization pattern formed by the electronic device.
[0033] Figure 20 for Figure 16 The diagram shows a 3D schematic of the axial ratio of the electronic device.
[0034] Figure 21 This is a fifth structural schematic diagram of the electronic device provided in the embodiments of this application.
[0035] Figure 22 This is a sixth structural schematic diagram of the electronic device provided in the embodiments of this application. Detailed Implementation
[0036] The following will refer to the appendices in the embodiments of this application. Figure 1 To be continued Figure 22 The technical solutions in the embodiments of this application are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0037] This application provides an electronic device 10, which can be a smartphone, tablet computer, or other device, as well as a gaming device, augmented reality (AR) device, automotive device, data storage device, audio playback device, video playback device, laptop computer, desktop computing device, etc. The electronic device 10 can, but is not limited to, communicate with satellites and can transmit satellite signals. For example, the electronic device 10 can receive signals transmitted by satellites to achieve satellite positioning and information acquisition functions; furthermore, the electronic device 10 can communicate with another mobile terminal, electronic device, or communication device via satellite. Please refer to [reference needed]. Figure 1 , Figure 1 This is a schematic diagram of a first structure of an electronic device 10 provided in an embodiment of this application. The electronic device 10 includes a first radiator 110, a second radiator 120, a signal source 130, a first ground plane 140, and a second ground plane 150.
[0038] The first floor 140 includes a first side 141 and a second side 142 that are bent and connected. The first side 141 extends along a first direction H1, and the second side 142 extends along a second direction H2, which is perpendicular to the first direction H1 such that the second side 142 is perpendicular to the first side 141. A first radiator 110 extends along the first direction H1 and is spaced apart from the first side 141 of the first floor 140. A second radiator 120 also extends along the first direction H1. The second radiator 120 and the first radiator 110 are spaced apart along a third direction H3. A second floor 150 is also spaced apart from the first floor 140 along a third direction H3, which is perpendicular to the first direction H1 and the second direction H2. The second radiator 120 includes a first end 121 and a second end 122. On the plane where the first radiator 110 is located, the orthographic projection of the first end 121 overlaps with the first radiator 110, and the orthographic projection of the second end 122 is spaced apart from the first radiator 110. The second end 122 is electrically connected to the second ground 150 to achieve grounding. The second radiator 120 partially overlaps with the first radiator 110. The signal source 130 is electrically connected to the first radiator 110. The signal source 130 can provide an excitation signal to excite the first radiator 110 and the first ground 140 to jointly form a circularly polarized wave with a first main radiation direction H4, and to excite the first radiator 110 and the second radiator 120 to jointly form a circularly polarized wave with a second main radiation direction H5. The first radiator 110, the second radiator 120, and the first ground 140 can jointly transmit (including receive and / or transmit satellite communication signals to and from free space) satellite communication signals with the first main radiation direction H4 and the second main radiation direction H5 in a circularly polarized manner in free space. The first main radiation direction H4 is perpendicular to the first floor 140 and extends away from the second floor 150. The second main radiation direction H5 is the direction from the center of the first floor 140 to the side where the first side 141 is located. The signal source 130, the first radiator 110, the second radiator 120, and the first floor 140 can form a satellite antenna for the electronic device 10.
[0039] Both the first ground plane 140 and the second ground plane 150 are planes or structures with zero potential, and both can form a common ground. The first ground plane 140 and the second ground plane 150 can be formed by conductors, printed circuits, or metal printed layers in the electronic device 10. The first ground plane 140 and the second ground plane 150 can be stacked and spaced apart along a third direction H3. When the first direction H1 is the width direction of the electronic device 10, the second direction H2 can be the length direction of the electronic device 10, and the third direction H3 can be the thickness direction of the electronic device 10. The first ground plane 140 and the second ground plane 150 can be stacked and spaced apart along the thickness direction of the electronic device 10.
[0040] In some embodiments, the electronic device 10 may have a fixed structure, and two stacked and spaced-apart floor panels may be disposed inside the electronic device 10 to form the first floor 140 and the second floor 150 of the satellite antenna of this application. Of course, in other embodiments, please refer to... Figure 1 Please refer to Figure 2 , Figure 2 for Figure 1 The diagram shows the structure of the electronic device 10 in another state. The electronic device 10 includes a first body 200 and a second body 300 that can move towards each other. The first body 200 can support a first radiator 110 and a first floor 140, and the second body 300 can support a second radiator 120 and a second floor 150. Wherein, as... Figure 2 As shown, the second body 300 can be unfolded relative to the first body 200 to put the electronic device 10 in an unfolded state. In this state, the first floor 140 and the second floor 150 can be coplanar, and the first radiator 110 and the second radiator 120 can be spaced apart from each other; for example, they can be located at the top and bottom edges of the electronic device 10. Of course, as... Figure 1 As shown, the second body 300 can be folded relative to the first body 200 to put the electronic device 10 in a folded state. In this state, the first radiator 110 and the second radiator 120 can be arranged at intervals along a third direction H3 and partially overlap. On the plane where the first radiator 110 is located, a portion of the orthographic projection of the second radiator 120 overlaps with the first radiator 110, and a portion of the orthographic projection of the second radiator 120 is offset from the first radiator 110. Similarly, the first floor 140 and the second floor 150 can also be arranged at intervals along a third direction H3 and at least partially overlap. The orthographic projection of the first floor 140 on the plane where the second floor 150 is located can completely overlap or partially overlap with the second floor 150.
[0041] Both the first radiator 110 and the second radiator 120 are conductive radiating devices. At least one of the first radiator 110 and the second radiator 120 can be, but is not limited to, a laser direct-structuring (LDS) radiating structure, a flexible printed circuit (FPC) radiating structure, a print direct-structuring (PDS) radiating structure, or a metal branch radiating structure. Furthermore, the first radiator 110 can be, but is not limited to, an inverted-Fantenna (IFA) radiating structure or a T-type antenna radiating structure. The first radiator 110 can be electrically connected to the first ground plane 140 through structures such as grounding springs, grounding foam, grounding pads, grounding wires, grounding protrusions, and grounding screws to achieve grounding. Alternatively, the first radiator 110 can also be, but is not limited to, a monopole antenna radiating structure, in which case the first radiator 110 is not electrically connected to the first ground plane 140. The other end of the second radiator 120 may be electrically connected to the second floor 150 to achieve grounding through structures such as grounding spring, grounding foam, grounding pad, grounding wire, grounding protrusion, and grounding screw.
[0042] It is understandable that the first radiator 110 and the second radiator 120 extending along the first direction H1 can mean that the first radiator 110 and the second radiator 120 are parallel to or approximately parallel to the first direction H1. For example, the angle between the first radiator 110 or the second radiator 120 and the first direction H1 is greater than or equal to 0 degrees and less than or equal to 30 degrees.
[0043] The signal source 130 is a device or structure that can provide or output excitation signals. For example, the signal source 130 can be a device that provides excitation signals to the radio frequency transceiver, radio frequency chip, etc. of the electronic device 10, or it can be a structure that can transmit excitation signals, such as a feed pad or feed port of the electronic device 10. Under the excitation of the signal source 130, the first radiator 110 can be the main radiating branch of the satellite antenna of the electronic device 10, the first ground plane 140 can also participate in the radiation of the satellite antenna under the action of the first radiator 110, and the second radiator 120 can be capacitively coupled to the first radiator 110 so that the second radiator 120 can be an auxiliary radiating branch of the satellite antenna. Capacitive coupling means that when an electric field is generated between two radiators, the signal on one radiator can be transmitted to the other radiator through the electric field, so that the two radiators can conduct electrical signals even without direct contact or direct connection.
[0044] like Figure 3 As shown, Figure 3for Figure 1 The diagram shows an electric field distribution of the electronic device 10. Under the excitation of the signal source 130, the first radiator 110 can generate an electric field along a third direction H3 (e.g., ...). Figure 3 The first electric field component of the horizontal Y-direction electric field and along the first direction H1 (e.g.) Figure 3 The third electric field component of the horizontal X-direction electric field of the first radiator 110 is excited by the spatial coupling (capacitive coupling) of the electric field to further generate a second electric field component along the first direction H1 and a fourth electric field component along the third direction H3. Because of the spatial coupling (capacitive coupling), a phase difference is introduced. The first electric field component of the first radiator 110 in the third direction H3 and the second electric field component of the second radiator 120 in the first direction H1 (and the third electric field component of the first radiator 110 in the first direction H1 and the fourth electric field component of the second radiator 120 in the third direction H3) can form a phase difference and be orthogonal in space. According to the right-hand screw rule, under the influence of the first electric field component, the second electric field component, and the phase difference (and, under the influence of the third electric field component, the fourth electric field component, and the phase difference), the first radiator 110 and the second radiator 120 can generate a circularly polarized satellite communication signal radiated in the second main radiation direction H5. The second main radiation direction H5 can be the direction from the center of the first floor 140 toward the side where the first side 141 is located, or in other words, the second main radiation direction H5 is the direction from the first floor 140 toward the side where the satellite is located. The second main radiation direction H5 can be perpendicular to the plane formed by the first radiator 110 and the second radiator 120 arranged along the third direction H3 (for example, the second main radiation direction H5 can be along the second direction H2 of the electronic device 10 and radiate upwards).
[0045] Understandably, if the electronic device 10 does not have a second radiator 120, please refer to [the relevant documentation / reference]. Figure 4 , Figure 4 for Figure 1 The diagram shows an electric field distribution of the electronic device 10 excluding the second radiator 120. Although the first radiator 110 can generate an orthogonal electric field distribution, it cannot form a phase difference, therefore circular polarization cannot be achieved in space. In this case, the first radiator 110 can only generate linearly polarized satellite communication signals. However, as... Figure 1 As shown, when the electronic device 10 includes both a first radiator 110 and a second radiator 120, by adjusting the electrical connection parameters of the first radiator 110 and the second radiator 120, the phase difference of the excitation current on the first radiator 110 and the second radiator 120 is 90 degrees. At this time, the first radiator 110 and the second radiator 120 can generate a circularly polarized satellite communication signal radiated in the second main radiation direction H5.
[0046] Under the excitation of the signal source 130 and the action of the first radiator 110, an excitation current can also be formed on the first ground plane 140, and the first ground plane 140 can also participate in the transmission of satellite communication signals. This excitation current can be the ground return current on the first radiator 110 when the first radiator 110 and the first ground plane 140 are electrically connected, or it can be the induced current generated on the first ground plane 140 under the action of the first radiator 110.
[0047] Please refer to Figure 5 , Figure 5 for Figure 1 The schematic diagram of the current distribution of the first ground plane 140 of the electronic device 10 shown indicates that the first ground plane 140 may be a rectangular structure. The first ground plane 140 also includes a bent and connected third side 143 and a fourth side 144. The third side 143 is positioned opposite to the first side 141, and the fourth side 144 is positioned opposite to the second side 142. Under the excitation of the signal source 130, a first strong excitation current region A1 flowing along the second side 142, a second strong excitation current region A2 flowing along the third side 143, and a third strong excitation current region A3 flowing along the fourth side 144 are generated on the first ground plane 140. Since the first side 141 or the third side 143 is perpendicular to the second side 142 and the fourth side 144, the second strong excitation current region A2 is perpendicular to both the first strong excitation current region A1 and the third strong excitation current region A3. Therefore, vertically polarized current pairs and horizontally polarized currents can be formed on the first ground plane 140, and orthogonal excitation current pairs can be formed on the first ground plane 140. At this time, as... Figure 6 As shown, Figure 6 for Figure 1 The radiation pattern formed by the first floor 140 of the electronic device 10 shown can generate a circularly polarized beam toward the first main radiation direction H4 under the action of the signal source 130 and the first radiator 110. The first main radiation direction H4 can be perpendicular to the first floor 140 and extend along the direction of the first floor 140 away from the second floor 150 (for example, the first main radiation direction H4 can be perpendicular to the first floor 140 and radiate in front of the electronic device 10).
[0048] It is understood that a strong excitation current region refers to a region with a large excitation current intensity (e.g., the maximum region). In the current simulation diagram, the red region (one or more of the darkest regions in the grayscale image) can be considered the strong excitation current region in the embodiments of this application. Figure 5As shown, a first strong excitation current region A1 flowing towards the side of the third side 143 can be formed in the area of the second side 142 of the first floor 140 near the first side 141; a second strong excitation current region A2 flowing towards the side of the second side 142 can be formed in the middle area of the third side 143; and a third strong excitation current region A3 flowing towards the side of the first side 141 can be formed in the area of the fourth side 144 near the third side 143. It should be noted that strong excitation current regions can also be formed in other areas of the first floor 140, for example, other strong excitation current regions can be formed in and around the first side 141. This embodiment of the application does not limit this.
[0049] It is understandable that circular polarization of an antenna is a type of antenna polarization. Antenna polarization includes linear polarization, elliptical polarization, and circular polarization. Antenna polarization refers to the polarization of the electromagnetic wave in the direction of maximum gain. The polarization of the electromagnetic wave is the change of the electric field trajectory at a certain location over time. This electric field trajectory can be a straight line, a circle, or an ellipse, thus allowing the antenna to be linearly, circularly, or elliptically polarized. Linear polarization refers to the polarization of an electromagnetic wave where the orientation of the electric field vector in space remains constant. When the ground is used as a reference, if the direction of the electric field vector is parallel to the ground, it is horizontal polarization; if it is perpendicular to the ground, it is vertical polarization. Elliptical polarization refers to a polarization where the angle between the polarization plane of the electromagnetic wave and the normal plane of the earth changes periodically from 0 to 360 degrees, and the trajectory of the end of the electric field vector projects as an ellipse onto a plane perpendicular to the propagation direction. Circular polarization refers to the characteristic that the magnitude of the electric field remains constant, while its direction changes over time, and the projection of the trajectory of the electric field vector's endpoint onto a plane perpendicular to the propagation direction forms a circle. Circular polarization can be achieved when the horizontal and vertical components of the electric field have equal amplitudes and a phase difference of 90 or 270 degrees. Furthermore, if the polarization surface rotates with time and forms a right-handed spiral relationship with the electromagnetic wave propagation direction, it is called right-handed circular polarization; conversely, if it forms a left-handed spiral relationship, it is called left-handed circular polarization. When the first radiator 110, the second radiator 120, and the first ground plane 140 jointly support the transmission and reception of satellite communication signals in a circularly polarized manner, this method can overcome multipath effects, improve communication accuracy, and particularly enhance the communication performance between the first radiator 110, the second radiator 120, and the ground plane and the communication satellite. It can also eliminate polarization distortion and improve the anti-interference capability of the satellite antenna.
[0050] It is understood that the radiation direction of the antenna is the direction in which the main beam of the antenna faces. For example, in the embodiments of this application, when the first radiator 110, the second radiator 120, and the first ground plane 140 jointly support satellite communication signals, two main beams can be formed in the radiation pattern of the satellite antenna. One of the main beams can propagate along the first main radiation direction H4, and this main beam can propagate perpendicular to the first ground plane 140 and in the direction away from the second ground plane 150. Figure 6 and Figure 7 As shown, the main beam can propagate towards the front of the electronic device 10. It is understood that the second floor 150 has a relatively small impact on the main beam, allowing it to propagate relatively stably along the first main radiation direction H4. The other main beam of the satellite antenna can propagate along the second main radiation direction H5. This main beam can propagate perpendicularly to the plane formed by the first radiator 110 and the second radiator 120 arranged along the third direction H3 and along the direction from the center of the first floor 140 to the side where the first side 141 is located, as shown... Figure 6 and Figure 7 As shown, the beam can propagate along the top of the electronic device 10. Therefore, when the electronic device 10 of this embodiment supports satellite communication signals, it can form upward and forward beams, allowing the satellite communication signals to propagate both forward and upward.
[0051] It is understood that the satellite communication signals in this application embodiment may be, but are not limited to, Global Positioning System (GPS) signals, BeiDou signals, or Tiantong signals. Since the signals transmitted by GPS satellites are right-hand circularly polarized signals, the satellite communication signals in this application may be right-hand circularly polarized signals relative to the first floor 140 for better communication with GPS signals. Since the BeiDou signals transmitted by BeiDou satellites are left-hand circularly polarized signals in the 1.6 GHz frequency band and right-hand circularly polarized signals in the 2.498 GHz frequency band, the satellite communication signals in this application may be left-hand circularly polarized signals relative to the first floor 140 in the 1.6 GHz frequency band and right-hand circularly polarized signals relative to the first floor 140 in the 2.498 GHz frequency band. Since the Tiantong signals transmitted by Tiantong satellites are left-hand circularly polarized signals, the satellite communication signals in this application may be left-hand circularly polarized Tiantong signals relative to the first floor 140. At this time, the electronic device 10 in this embodiment of the application can realize satellite communication functions such as positioning and video calls through the Tiantong signal. The electronic device 10 can realize positioning in more scenarios, which greatly improves the positioning accuracy of the electronic device 10.
[0052] For example, when the satellite communication signal is a Tiantong signal, please refer to... Figures 7 to 10 , Figure 7 for Figure 1 The total field radiation pattern formed by the electronic device 10 shown is as follows: Figure 8 for Figure 1 The left-hand circularly polarized (LHCP) pattern formed by the electronic device 10 shown is... Figure 9 for Figure 1 The right-hand circularly polarized (RHCP) radiation pattern formed by the electronic device 10 shown is... Figure 10 for Figure 1A 3D schematic diagram showing the axial ratio of the electronic device 10. Figures 7 to 10 It can be seen that the main radiation directions of the satellite antenna's total field radiation pattern and the left-hand circular polarization pattern are both forward and upward (i.e., possessing the first main radiation direction H4 and the second main radiation direction H5), while the main radiation direction of the right-hand circular polarization pattern is basically downward; from Figure 9 As shown in the axial ratio diagram, there is a very low axial ratio in the upward direction. This means that the satellite antenna produces a good left-hand circular polarization characteristic, with the main radiation direction and the main polarization radiation direction both mainly forward and upward, thus achieving the control and fusion of the total field pattern and the left-hand component pattern.
[0053] It is understandable that the first radiator 110 and the second radiator 120 can be positioned on the side of the first floor 140, 141, away from the third side 143. When the electronic device 10 is in use (with the user holding the second side 142 and the fourth side 144), the maximum distance between the first side 141 and the horizontal plane is greater than the maximum distance between the third side 143 and the horizontal plane. The first side 141 is closer to the communication satellite. At this time, the circularly polarized radiation pattern formed by the satellite antenna of the first radiator 110, the second radiator 120, and the first floor 140, radiating in the second main radiation direction H5, can point towards the sky, making it easier for the satellite antenna to receive satellite signals transmitted by the communication satellite.
[0054] It should be noted that the second floor 150 can also participate in radiation as part of the satellite antenna, but since the energy coupled by the second radiator 120 to the second floor 150 is weak, the contribution of the second floor 150 to the satellite antenna is small, and the second floor 150 is ignored in this embodiment.
[0055] In this embodiment of the electronic device 10, under the excitation of the signal source 130 and the action of the first radiator 110, a strong excitation current region along the first direction H1 and a strong excitation current region along the second direction H2 can be formed on the first ground 140. The resonant current on the first ground 140 can be orthogonally distributed, so that the first ground 140 and the first radiator 110 can jointly form a circularly polarized beam perpendicular to the first main radiation direction H4 of the first ground 140. At the same time, the first radiator 110 and the second radiator 120 are arranged along the third direction H3, and the first radiator 110 and the second radiator 120 can jointly form a beam extending from the center of the first ground 140 to the first edge 1. The circularly polarized beam of the second main radiation direction H5 on the side where 41 is located; thus, the satellite antenna formed by the first floor 140, the first radiator 110 and the second radiator 120 in this embodiment can transmit and receive satellite communication signals with dual radiation directions in a circularly polarized manner. On the one hand, the circularly polarized transmission and reception method can improve the communication performance between the satellite antenna and the communication satellite, and improve the positioning accuracy and call quality of the satellite antenna; on the other hand, the satellite communication signal of this application has dual radiation directions, and the antenna performance of the satellite communication signal in the two main radiation directions is better. Compared with the related technology schemes that only have one main radiation direction, the antenna performance of the satellite communication signal of this application is better.
[0056] In order to further improve the antenna performance of the satellite antenna, the grounding area of the first radiator 110 can be designed such that the distance between the orthographic projection of the grounding area of the first radiator 110 and the midpoint of the first side 141 is greater than or equal to zero and less than or equal to one-eighth of the wavelength corresponding to the satellite communication signal. At this time, the distribution of the vertical polarization current pair and the horizontal polarization current on the first ground 140 of the satellite antenna is more uniform and symmetrical, and the performance of the circular polarization radiation pattern with the first main radiation direction H4 formed by the first ground 140 of the satellite antenna is better.
[0057] For example, please refer to again Figure 1 Please refer to Figure 11 , Figure 11 for Figure 1 The schematic diagram of the electronic device 10 from another direction shows that the first radiator 110 can be an IFA (Infrastructure for Affected Satellite Communication) radiating structure. The first radiator 110 includes a first ground terminal 111, a feed section 112, and a first free end 113 arranged sequentially. The feed section 112 is electrically connected to the signal source 130, and the first ground terminal 111 is electrically connected to the first ground plane 140 to achieve grounding. The distance between the orthographic projection of the first ground terminal 111 onto the first side 141 and the midpoint of the first side 141 is greater than or equal to zero and less than or equal to one-eighth of the wavelength corresponding to the satellite communication signal. At this time, as... Figure 5As shown, the distribution of the induced current formed on the first floor 140 is relatively symmetrical. For example, the strong excitation current region formed on and near the first side 141 can be symmetrical about the orthographic projection of the first ground terminal 111 onto the first side 141. As another example, the second strong excitation current region A2 can be located in the middle region of the third side 143, the center of the second strong excitation current region A2 can coincide with the center of the third side 143, and the distances between the second strong excitation current region A2 and the first strong excitation current region A1 and the third strong excitation current region A3 are relatively symmetrical. In this case, as... Figure 6 As shown, the radiation pattern formed by the first floor 140 has less distortion, and the circular polarization performance of the satellite antenna is better.
[0058] For comparison, please refer to Figures 12 to 14 , Figure 12 This is a schematic diagram of a second structure of the electronic device 10 provided in the embodiments of this application. Figure 13 for Figure 12 A schematic diagram of the current distribution in the first electric field of the electronic device 10 shown. Figure 14 for Figure 12 The radiation pattern formed by the first floor 140 of the electronic device 10 shown. Figure 12 The electronic device 10 shown is Figure 1 , Figure 11 The difference in the electronic device 10 shown is that, Figure 12 The first radiator 110 of the electronic device 10 shown is disposed in a corner region of the electronic device 10 (the position of the second radiator 120 can be changed accordingly to ensure that the overlapping area of the first radiator 110 and the second radiator 120 is consistent with the position of the second radiator 120). Figure 1 (As shown), the first grounding terminal 111 of the first radiator 110 is projected onto the first side 141 closer to the end of the first side 141 and further away from the midpoint of the first side 141. At this time, as... Figure 13 As shown, a fourth strong excitation current region A4 flowing along the first side 141, a fifth strong excitation current region A5 flowing along the second side 142, and a sixth strong excitation current region A6 flowing along the fourth side 144 can be formed on the first ground plate 140. The fourth strong excitation current region A4 can be a horizontally polarized current, while the fifth and sixth strong excitation current regions A5 and A6 can be vertically polarized currents. Because the fourth strong excitation current is more biased towards the sixth strong excitation current region A6, the vertical and horizontal polarized currents on the first ground plate 140 are asymmetrical. Furthermore, the horizontal polarized current intensity near the third side 143 is very low. At this time, the overall excitation intensity of the first ground plate 140 varies, and the overall current distribution of the first ground plate 140 is uneven. In this case, as... Figure 14As shown, the radiation pattern generated by the first floor 140 is distorted, and the beam direction of the circularly polarized wave generated by the excitation current on the first floor 140 is affected. In addition to forward radiation, the main radiation direction of the first floor 140 also includes downward and rightward radiation directions, which affects the main radiation direction of the first floor 140.
[0059] Based on this, comparison Figures 1 to 11 and Figures 12 to 14 In this embodiment of the application, the distance between the first ground terminal 111 of the first radiator 110 and the midpoint of the first side 141 is greater than or equal to zero and less than or equal to one-eighth of the wavelength corresponding to the satellite communication signal. At this time, a uniform and symmetrical excitation current can be excited on the first ground 140, so that the satellite antenna can have a circularly polarized radiation pattern along the first main radiation direction H4.
[0060] Please refer to this again. Figures 1 to 11 In order to further improve the antenna performance of the satellite antenna, the coupling amount between the first radiator 110 and the second radiator 120 can be adjusted so that the phase difference of the resonant current generated on the first radiator 110 and the second radiator 120 can be 90 degrees (including approximately 90 degrees, for example, the phase difference between the two can be between 85 degrees and 105 degrees).
[0061] For example, such as Figures 1 to 11 As shown, the orthogonal projection of the second radiator 120 onto the reference plane where the first radiator 110 is located can overlap with the first radiator 110. The overlapping area of the two has a first length d along the first direction H1. The first length d is the stagger distance between the first radiator 110 and the second radiator 120. By adjusting the size of the first length d, the coupling amount between the first radiator 110 and the second radiator 120 can be adjusted, so that the phase difference of the resonant current generated by the first radiator 110 and the second radiator 120 is 90 degrees.
[0062] For example, please refer to again. Figures 1 to 11 The electronic device 10 also includes a first matching circuit 160 electrically connected between the signal source 130 and the first radiator 110. The first matching circuit 160 may include a variable number of capacitors, inductors, resistors, and other components. The first matching circuit 160 has a first impedance value. When the first length d is constant, the phase difference between the resonant currents generated by the first radiator 110 and the second radiator 120 can be 90 degrees by adjusting the magnitude of the first impedance value. Alternatively, the electronic device 10 can simultaneously adjust both the first length d and the first impedance value to achieve a 90-degree phase difference between the resonant currents generated by the first radiator 110 and the second radiator 120.
[0063] Understandably, the first matching circuit 160 can also adjust the impedance of the excitation signal provided by the signal source 130. When the first matching circuit 160 is adjusted to its optimal parameters, the first length d can be adjusted to adjust the phase difference between the two radiators. For example, the first length d can be made equal to half the stub length of the first radiator 110. In this case, the circular polarization performance of the satellite antenna is better, and the satellite antenna can form a phase difference such as... Figures 6 to 9 The radiation pattern shown.
[0064] Understandably, please refer to Figure 15 , Figure 15 This is a schematic diagram of a third structure of the electronic device 10 provided in this application embodiment. The electronic device 10 may further include a second matching circuit 170. One end of the second matching circuit 170 is electrically connected to the second end 122 of the second radiator 120, and the other end of the second matching circuit 170 is electrically connected to the second ground 150 to achieve grounding. The second matching circuit 170 may include a variable number of capacitors, inductors, resistors, and other components. The electronic device 10 can adjust the second impedance value of the second matching circuit 170 so that the phase difference between the resonant currents generated on the first radiator 110 and the second radiator 120 is 90 degrees. Of course, the electronic device 10 can also adaptively adjust the second impedance value according to the magnitude of the first length d and the first impedance value so that the phase difference between the resonant currents generated on the first radiator 110 and the second radiator 120 is 90 degrees. At this time, the first radiator 110 and the second radiator 120 can form orthogonal electric fields in space. Furthermore, by adjusting the staggered distance between the two radiators and the size of the first matching circuit 160 and the second matching circuit 170, the phase difference of the excitation current on the first radiator 110 and the second radiator 120 is 90 degrees. The first radiator 110 and the second radiator 120 can form a circularly polarized radiation pattern radiating towards the second main radiation direction H5.
[0065] It is understood that in some embodiments, the first radiator 110 and the second radiator 120 may both be parallel to the first side 141, and the distance between the first radiator 110 and the first side 141 (the distance along the second direction H2) is equal to the distance between the second radiator 120 and the first side 141 (the distance along the second direction H2). In the second direction H2, there is no height difference between the first radiator 110 and the second radiator 120. At this time, the plane formed by the first radiator 110 and the second radiator 120 may be perpendicular to the plane formed by the first floor 140 (or the second floor 150). The electric fields generated by the first radiator 110 and the second radiator 120 form a larger component of the orthogonal electric field in space, so that the first radiator 110 and the second radiator 120 can have a circularly polarized radiation pattern that radiates towards the second main radiation direction H5 with better performance.
[0066] In the electronic device 10 of this application embodiment, the first ground terminal 111 of the first radiator 110 is as close as possible to the midpoint of the first side 141 of the first ground plane 140. By adjusting the first length d of the first radiator 110 and the second radiator 120 intersecting, as well as the impedance values of the first matching circuit 160 and the second matching circuit 170, the phase difference of the resonant current of the first radiator 110 and the second radiator 120 is as close as possible to 90 degrees. The satellite antenna formed by the first radiator 110, the second radiator 120 and the first ground plane 140 can generate a radiation pattern with the main radiation direction upward (first main radiation direction H4) and forward (second main radiation direction H5). The left-hand circularly polarized radiation pattern is synthesized and has both forward and upward propagation, thereby generating field propagation in two main directions - forward and upward. Furthermore, the total radiation field pattern and the left-hand circular polarization pattern of the satellite antenna both have forward and upward main radiation directions, while the right-hand circular polarization pattern has a downward radiation direction. In terms of axial ratio, the upward direction has a very low axial ratio, resulting in a good left-hand circular polarization characteristic where both the main radiation direction and the main polarization radiation direction are mainly forward and upward, thus achieving consistency between the total field pattern and the left-hand component pattern.
[0067] The first radiator 110 in this embodiment can also be other radiating structures. For example, please refer to... Figure 16 , Figure 16 This is a schematic diagram of the fourth structure of the electronic device 10 provided in the embodiments of this application. The first radiator 110 can also be a T-shaped antenna radiating structure. The first radiator 110 includes a feed section 112, a ground section 114, a third free end 115 and a fourth free end 116. The feed section 112 and the ground section 114 are disposed between the third free end 115 and the fourth free end 116. The feed section 112 is electrically connected to the signal source 130, and the ground section 114 is electrically connected to the first ground plane 140 to achieve grounding.
[0068] Understandably, the grounding portion 114 can be located in the central region of the first radiator 110. For example, the distance between the grounding portion 114 and the midpoint (midpoint along the first direction H1) of the first radiator 110 is less than or equal to one-eighth of the branch length of the first radiator 110. In this case, the power supply portion 112 can be located between the grounding portion 114 and the third free end 115, or it can be located between the grounding portion 114 and the fourth free end 116. When the signal source 130 feeds an excitation signal to the first radiator 110 through the power supply portion 112, the excitation signal flows from the grounding portion 114 toward the third free end 115 and the fourth free end 116, respectively, so that the flow direction of the excitation signal is opposite at both ends of the grounding portion 114.
[0069] It is understandable that the distance between the orthographic projection of the grounding part 114 on the first side 141 and the midpoint of the first side 141 is greater than or equal to zero and less than or equal to one-eighth of the wavelength corresponding to the satellite communication signal. At this time, symmetrically distributed induced current or excitation current can also be formed on the first ground 140, the radiation pattern distortion formed by the first ground 140 is less, and the circular polarization performance of the satellite antenna is better.
[0070] It is understandable that a first matching circuit 160 can also be provided between the power supply unit 112 and the signal source 130, and a second matching circuit 170 can also be provided between the second radiator 120 and the second ground 150. By adjusting the first length d of the first radiator 110 and the second radiator 120, the first impedance value of the first matching circuit 160, and the second impedance value of the second matching circuit 170, the signal difference of the excitation signal generated on the first radiator 110 and the second radiator 120 can be made to differ by 90 degrees, so that the first radiator 110 and the second radiator 120 can generate a circularly polarized radiation pattern radiating towards the second main radiation direction H5.
[0071] The electronic device 10 in this application embodiment, please refer to... Figure 16 Please refer to Figures 17 to 20 , Figure 17 for Figure 16 The total field radiation pattern of the electronic device 10 shown is as follows: Figure 18 for Figure 16 The left-hand circular polarization pattern formed by the electronic device 10 shown is... Figure 19 for Figure 16 The right-hand circular polarization pattern formed by the electronic device 10 shown is... Figure 20 for Figure 16 The diagram shows a 3D axial-ratio schematic of the electronic device 10. When the ground portion 114 of the first radiator 110 is close to the midpoint of the first side 141 of the first ground plane 140, and the phase difference between the excitation currents on the first radiator 110 and the second radiator 120 is 90 degrees, as... Figures 17 to 20 As shown, satellite antennas can also generate forward (first main radiation direction H4) and upward (second main radiation direction H5) field radiation. The total field pattern and the left-hand circular polarization pattern are basically forward and upward, while the right-hand circular polarization pattern is basically downward. Both the upward and forward directions have low axial ratios, and the total field pattern and the left-hand component pattern can be made consistent.
[0072] Please refer to the following: Figure 21 , Figure 21This is a fifth structural schematic diagram of the electronic device 10 provided in the embodiments of this application. The first radiator 110 can also be a monopole antenna structure. The first radiator 110 includes a feed terminal 117 and a second free terminal 118. The feed terminal 117 is electrically connected to the signal source 130, and the second free terminal 118 is not electrically connected to the first ground plane 140 or the second ground plane 150, and the second free terminal 118 is not grounded.
[0073] It is understandable that the distance between the orthographic projection of the feed terminal 117 onto the first side 141 and the midpoint of the first side 141 is greater than or equal to zero and less than or equal to one-eighth of the wavelength corresponding to the satellite communication signal. At this time, a symmetrically distributed induced current or excitation current can be formed on the first ground plane 140, resulting in less distortion of the radiation pattern formed by the first ground plane 140 and better circular polarization performance of the satellite antenna. Furthermore, a first matching circuit 160 can be set between the feed terminal 117 and the signal source 130. By adjusting the first staggered length d of the first radiator 110 and the second radiator 120 and the first impedance value of the first matching circuit 160, the signal difference between the excitation signals generated on the first radiator 110 and the second radiator 120 can be made 90 degrees, thereby enabling the first radiator 110 and the second radiator 120 to generate a circularly polarized radiation pattern radiating towards the second main radiation direction H5.
[0074] It is understood that, in this embodiment, the second end 122 of the second radiator 120 can also be grounded through the second matching circuit 170. The electronic device 10 can also, according to at least one of the parameters of the first length d, the first impedance value, and the second impedance value, make the phase difference of the resonant current generated on the first radiator 110 and the second radiator 120 90 degrees, so that the first radiator 110 and the second radiator 120 can form a circularly polarized radiation pattern radiating towards the second main radiation direction H5.
[0075] In the electronic device 10 of this application embodiment, when the feed terminal 117 of the first radiator 110 is close to the midpoint of the first side 141 of the first ground 140, and the phase difference between the excitation currents on the first radiator 110 and the second radiator 120 is 90 degrees, the satellite antenna can generate forward (first main radiation direction H4) and upward (second main radiation direction H5) field radiation. The total field pattern and the left-hand circular polarization pattern are basically forward and upward, and the right-hand circular polarization pattern is basically downward. Both the upward and forward directions have low axial ratios, and the consistency between the total field pattern and the left-hand component pattern can also be achieved.
[0076] It should be noted that the above description of this case takes the satellite communication signal transmitted by the satellite antenna as a left-hand circularly polarized Tiantong signal relative to the first floor 140 as an example. In actual operation, the excitation signal provided by the signal source 130 can also be adjusted, or the setting positions of the first radiator 110, the second radiator 120, and the first floor 140 can be adjusted (for example, by setting them as a mirror image of the first floor 140). The satellite communication signal transmitted by the satellite antenna can also be a right-hand circularly polarized signal relative to the first floor 140. This application embodiment does not limit this.
[0077] Based on the structure of the above-described electronic device 10, please refer to Figure 22 , Figure 22 This is a sixth structural schematic diagram of the electronic device 10 provided in the embodiments of this application. The electronic device 10 may also include a display screen 400, a mid-frame 500, a circuit board 600, a battery 700, and a back cover 800.
[0078] The display screen 400 can be mounted on the mid-frame 500 and connected to the rear housing 800 via the mid-frame 500 to form the display surface of the electronic device 10. The display screen 400 can be used to display images, text, and other information. The display screen 400 can be, but is not limited to, an organic light-emitting diode (OLED) display device.
[0079] The middle frame 500 may include a frame 510 and a middle plate 520. The middle plate 520 can provide support for functional components or electronic devices in the electronic device 10. The frame 510 is connected to the edge of the middle plate 520 and protrudes from the middle plate 520. The frame 510 and the middle plate 520 form an accommodating space in which the functional components and electronic devices in the electronic device 10 can be installed and fixed. When the middle plate 520 of the middle frame 500 is made of a conductive material, part or all of the middle plate 520 can form the ground of the electronic device 10. In this case, the middle plate 520 can both support the devices of the electronic device 10 and serve as a grounding device. The middle plate 520 can be reused, and the electronic device 10 can be miniaturized.
[0080] Circuit board 600 can be mounted on mid-frame 500. Circuit board 600 can be the motherboard of electronic device 10. Circuit board 600 can integrate one, two, or more electronic devices such as microphone, speaker, receiver, headphone jack, universal serial bus interface (USB interface), camera assembly, proximity sensor, environmental sensor, gyroscope, and processor. Display screen 400 can be electrically connected to circuit board 600 to control the display on display screen 400 via the processor on circuit board 600.
[0081] It is understood that the signal source 130 can be set on the circuit board 600. Of course, the signal source 130 can also be set on other carrier boards of the electronic device 10. The specific setting position of the signal source 130 is not limited in this embodiment.
[0082] Battery 700 can be mounted on mid-frame 500. Simultaneously, battery 700 is electrically connected to circuit board 600 to power electronic device 10. Power management circuitry can be installed on circuit board 600. This power management circuitry distributes the voltage provided by battery 700 to the various electronic components within electronic device 10.
[0083] The back cover 800 can be connected to the middle frame 500, such as the bezel 510. The back cover 800, the middle frame 500, and the display screen 400 can work together to seal the electronic devices and functional components of the electronic device 10 inside the electronic device 10, thereby protecting the electronic devices and functional components of the electronic device 10.
[0084] When the electronic device 10 has a variable shape, such as a foldable device, the display screen 400 can be a flexible screen. This flexible screen can be connected to the first body 200 and the second body 300. For example, one end of the flexible screen can be connected to the first body 200, and the other end of the flexible screen can bypass the pivot 900 of the electronic device 10 (or other structures connecting the first body 200 and the second body 300) and be connected to the second body 300. The first body 200 and the second body 300 can provide support for the flexible screen. During the relative movement of the first body 200 and the second body 300, the flexible screen can be moved together, or in other words, the flexible screen can be driven to move. The flexible screen can move with the relative movement of the first body 200 and the second body 300, thereby adjusting the length of the flexible screen to change the size of the display area of the electronic device 10.
[0085] For example, such as Figure 2 As shown, when the first body 200 and the second body 300 are far apart and in an unfolded state, the flexible screen can be made so that its two ends are on the same plane as the first body 200 and the second body 300 unfold, and the flexible screen can be entirely located on the display side of the electronic device 10. For example, as... Figure 1 As shown, when the first body 200 and the second body 300 approach each other and at least part of the second body 300 folds with the first body 200, a part of the flexible screen can be located on the display side of the electronic device 10, and another part of the flexible screen can extend around the pivot 900 to the non-display side of the electronic device 10 that is opposite to the display side.
[0086] When the electronic device 10 has a variable shape, such as a foldable device, the middle frame 500 includes a first side frame 511, a second side frame 512, a first middle plate 521, and a second middle plate 522. The first body 200 includes the first side frame 511 and the first middle plate 521, and the second body 300 includes the second side frame 512 and the second middle plate 522. When the first body 200 and the second body 300 move to an unfolded state, the first side frame 511 and the second side frame 512 can be coplanar and form the outer frame of the electronic device 10. The first middle plate 521 and the second middle plate 522 can also be coplanar, and the first radiator 110 and the second radiator 120 can be moved away from each other. All or part of the first middle plate 521 can form the first floor 140 in the aforementioned embodiment, and all or part of the second middle plate 522 can form the second floor 150 in the aforementioned embodiment. When the first body 200 and the second body 300 move to a folded state, the first frame 511 and the second frame 512 can be stacked and spaced apart along the third direction H3, the first middle plate 521 and the second middle plate 522 can also be stacked and spaced apart along the third direction H3, and the first radiator 110 and the second radiator 120 can also be stacked and spaced apart along the third direction H3.
[0087] It is understood that the ratio of the dimension of the first floor 140 along the first direction H1 to its dimension along the second direction H2 in this embodiment can be between 0.8 and 1.2. For example, the dimension of the first floor 140 along the first direction H1 can be 70 mm, and the dimension along the second direction H2 can be 70 mm or 75 mm. In this case, the first floor 140 is more likely to form a first strong excitation current region A1 near the second side 142, a second strong excitation current region A2 near the third side 143, and a third strong excitation current region A3 near the fourth side 144. It should be noted that if the ratio of the dimension of the first floor 140 along the first direction H1 to its dimension along the second direction H2 is between 0.4 and 0.6, for example, if the dimension of the first floor 140 along the first direction H1 is 70 mm, and the dimension along the second direction H2 is 150 mm or 140 mm, then the length of the first floor 140 along the second direction H2 is too long, and it is not easy to form strong excitation current regions on the second side 142 and the fourth side 144.
[0088] It is understandable that when the ratio of the dimension of the first floor 140 along the first direction H1 to its dimension along the second direction H2 can be between 0.8 and 1.2, the ratio of the dimension of the second floor 150 along the first direction H1 to its dimension along the second direction H2 can also be between 0.8 and 1.2, so that the second floor 150 does not easily affect the radiation pattern of the satellite antenna.
[0089] When the electronic device 10 has a variable-form structure, such as a foldable device, the circuit board 600 can be a flexible circuit board to accommodate the relative movement of the first body 200 and the second body 300. Of course, the circuit board 600 can also be a non-flexible circuit board. In this case, the electronic device 10 can have the circuit board 600 disposed on both the first body 200 and the second body 300; or the electronic device 10 can have the circuit board 600 disposed on only one body, and various functional modules can be electrically connected to the circuit board 600 via, but not limited to, flexible electrical connectors. This application does not limit this aspect.
[0090] When the electronic device 10 has a shape-shifting structure, such as a foldable device, the battery 700 can be installed on at least one of the first body 200 and the second body 300. Simultaneously, the battery 700 can be electrically connected to the circuit board 600 to power the electronic device 10.
[0091] When the electronic device 10 has a variable shape, such as a foldable device, the rear shell 800 of the electronic device 10 may include a first rear shell 810 and a second rear shell 820. The first rear shell 810 may be connected to a first frame 511 (and / or a first middle plate 521), and the second rear shell 820 may be connected to a second frame 512 (and / or a second middle plate 522). In this case, the flexible screen connected to the first body 200 can form the first display surface of the first body 200, and the first rear shell 810 can form the first back surface of the first body 200. The flexible screen connected to the second body 300 can form the second display surface of the second body 300, and the second rear shell 820 can form the second back surface of the second body 300. In the unfolded state, the first rear shell 810 and the second rear shell 820 can be coplanar, so that the first back surface and the second back surface are coplanar and together form the back surface of the electronic device 10. In the folded state, the second body 300 can be located on the side of the first display surface of the first body 200 away from the first back surface. The first back surface, the first display surface, the second display surface, and the second back surface can be arranged sequentially along the third direction H3. At this time, the circularly polarized radiation field formed by the first floor 140 and radiating towards the first main radiation direction H4 can propagate from the first floor 140 towards the direction away from the second floor 150. The first main radiation direction H4 can be from the first display surface towards the side where the first back surface is located.
[0092] Of course, in other embodiments, in the folded state, the second body 300 may also be located on the side of the first back surface of the first body 200 that faces away from the first display surface, and the first display surface, the first back surface, the second back surface, and the second display surface may be arranged sequentially along a third direction H3. This application does not limit this aspect.
[0093] When the electronic device 10 has a variable shape, such as a foldable device, the first frame 511 of the first body 200 can form at least one metal branch by means of slits or cuts. The first radiator 110 can include the at least one metal branch to form the first frame 511. In this case, the first radiator 110 can be connected to the first ground plane 140 formed on the first middle plate 521 through structures such as grounding protrusions, grounding pads, and grounding screws to achieve grounding. Similarly, the second frame 512 of the second body 300 can also form at least one metal branch, and the second radiator 120 can include the at least one metal branch to form the second frame 512. The second frame 512 can also be connected to the second ground plane 150 formed on the second middle plate 522 to achieve grounding.
[0094] It is understood that when the electronic device 10 has an invariable structure, two metal branches arranged and interleaved along the third direction H3 can be formed along the thickness direction of the electronic device 10 by means of slits or cuts, so that the first radiator 110 and the second radiator 120 are formed on the frame 510 of the electronic device 10. The embodiments of this application do not limit the formation method of the first radiator 110 and the second radiator 120.
[0095] It should be noted that non-conductive material can be filled into the openings or gaps formed on the frame 510 to improve the structural strength of the frame 510.
[0096] The first radiator 110 and the second radiator 120 of the present application embodiment are formed on the frame 510 of the electronic device 10. The frame 510 is reused, which can realize the miniaturization design of the electronic device 10.
[0097] It should be noted that the above is only an exemplary description of the electronic device 10 in the embodiments of this application. The electronic device 10 may also include other structures, such as, but not limited to, a sound-to-electric conversion device, a camera device, etc. The embodiments of this application do not limit this.
[0098] In the description of this application, it should be understood that terms such as “first” and “second” are used only to distinguish similar objects and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.
[0099] The electronic devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. An electronic device, characterized in that, include: A first floor includes a first side and a second side that are bent and connected, the first side extending along a first direction and the second side extending along a second direction perpendicular to the first direction; A first radiator extends along the first direction and is spaced apart from the first side; The signal source is electrically connected to the first radiator; The second radiator is arranged at intervals with the first radiator along a third direction perpendicular to the first direction and the second direction. The second radiator extends along the first direction and includes a first end and a second end. On the plane where the first radiator is located, the orthographic projection of the first end overlaps with the first radiator, and the orthographic projection of the second end is spaced apart from the first radiator. and A second floor, spaced apart from the first floor along the third direction, has its second end electrically connected to the second floor to achieve grounding; wherein... The signal source is used to excite the first radiator and the first floor to jointly form a circularly polarized wave in a first main radiation direction, and to excite the first radiator and the second radiator to jointly form a circularly polarized wave in a second main radiation direction, so that the electronic device supports satellite communication signals; wherein, the first main radiation direction is a direction perpendicular to the first floor and away from the second floor from the first floor, and the second main radiation direction is a direction from the center of the first floor to the side where the first edge is located.
2. The electronic device according to claim 1, characterized in that, The first floor also includes a third side and a fourth side that are bent and connected, wherein the third side is disposed opposite to the first side and the fourth side is disposed opposite to the second side; Under the excitation of the signal source, a first strong excitation current region flowing along the second side, a second strong excitation current region flowing along the third side, and a third strong excitation current region flowing along the fourth side are generated on the first floor. The second strong excitation current region is located in the middle region of the third side, so that the first radiator and the first floor together form a left-hand circularly polarized wave in the first main radiation direction.
3. The electronic device according to claim 1 or 2, characterized in that, The first radiator includes a first ground terminal, a feed section, and a first free terminal arranged sequentially. The feed section is electrically connected to the signal source, and the first ground terminal is electrically connected to the first ground plane to achieve grounding. The distance between the orthographic projection of the first grounding terminal onto the first side and the midpoint of the first side is greater than or equal to zero and less than or equal to one-eighth of the wavelength corresponding to the satellite communication signal.
4. The electronic device according to claim 1 or 2, characterized in that, The first radiator includes a feed terminal and a second free terminal, wherein the feed terminal is electrically connected to the signal source; wherein, The distance between the orthographic projection of the feed terminal on the first side and the midpoint of the first side is greater than or equal to zero and less than or equal to one-eighth of the wavelength corresponding to the satellite communication signal.
5. The electronic device according to claim 1 or 2, characterized in that, The first radiator includes a third free end and a fourth free end, and a feed section and a grounding section disposed between the third free end and the fourth free end. The feed section is electrically connected to the signal source, and the grounding section is electrically connected to the first ground plane to achieve grounding. The distance between the orthographic projection of the grounding part on the first side and the midpoint of the first side is greater than or equal to zero and less than or equal to one-eighth of the wavelength corresponding to the satellite communication signal.
6. The electronic device according to claim 1, characterized in that, Under the excitation of the signal source, the first radiator generates a first electric field component along the third direction, the second radiator is capacitively coupled with the first radiator to form a phase difference, and the second radiator generates a second electric field component along the first direction. Under the action of the first electric field component, the second electric field component and the phase difference, the first radiator and the second radiator together form a left-hand circularly polarized wave in the second main radiation direction.
7. The electronic device according to claim 1 or 6, characterized in that, On the plane where the first radiator is located, the overlapping area between the orthographic projection of the second radiator and the first radiator has a first length along the first direction; The electronic device further includes a first matching circuit electrically connected between the signal source and the first radiator, the first matching circuit having a first impedance value; wherein... The electronic device is used to adjust the parameter value of at least one of the first length and the first impedance value so that the phase difference of the resonant current generated on the first radiator and the second radiator is 90 degrees.
8. The electronic device according to claim 7, characterized in that, The first length is equal to half the length of the branch of the first radiator.
9. The electronic device according to claim 1 or 6, characterized in that, The electronic device also includes: A second matching circuit, one end of which is electrically connected to the second terminal, and the other end of which is electrically connected to the second ground plane to achieve grounding; wherein... The electronic device is used to adjust the impedance value of the second matching circuit so that the phase difference between the resonant currents generated on the first radiator and the second radiator is 90 degrees.
10. The electronic device according to claim 1, characterized in that, The electronic device also includes: A first body, the first body being used to support the first radiator and the first floor; and The second body is used to support the second radiator and the second floor; the second body can be unfolded or folded relative to the first body. In the folded state, the first radiator and the second radiator are arranged at intervals along the third direction and partially overlap, and the first floor and the second floor are arranged at intervals along the third direction and at least partially overlap.
11. The electronic device according to claim 10, characterized in that, The first body includes a first frame and a first middle plate, the first radiator is formed on the first frame, and the first middle plate includes the first floor. The second body includes a second frame and a second middle plate, the second radiator is formed in the second frame, and the second middle plate includes the second floor.
12. The electronic device according to claim 10, characterized in that, The first body includes a first display surface and a first back surface disposed opposite to each other. In the folded state, the second body is located on the side of the first display surface that is opposite to the first back surface.
13. The electronic device according to claim 1, characterized in that, Both the first radiator and the second radiator are parallel to the first side, and the distance between the first radiator and the first side is equal to the distance between the second radiator and the first side.
14. The electronic device according to claim 1, characterized in that, The first floor also includes a third side and a fourth side that are bent and connected, the third side being opposite to the first side and the fourth side being opposite to the second side; in the operating state of the electronic device, the distance between the first side and the horizontal plane is greater than the distance between the second side and the horizontal plane; wherein, The first radiator and the second radiator are disposed on the side of the first side away from the second side.