Foldable electronic device

Abstract

The application provides a foldable electronic device comprising an antenna. The working frequency band of the antenna comprises a satellite communication frequency band. The antenna comprises a radiator and a parasitic branch. A partially conductive frame of a housing serves as the radiator and the parasitic branch. When the foldable electronic device is in an unfolded state, the radiator and the parasitic branch can generate radiation beams towards both sides of the top of the foldable electronic device, so that the antenna has a wide beam characteristic. When the foldable electronic device is in the unfolded state, a user does not need to change a holding posture of the foldable electronic device when performing satellite communication, and the experience of the user when performing satellite communication can be improved.

Description

Technical Field

[0001] This application relates to the field of wireless communication, and more particularly to a foldable electronic device. Background Technology

[0002] Currently, existing terminal electronic devices utilize the frame as an antenna radiator. For example, in satellite communication systems, the frame radiator is mainly used to form a linearly polarized antenna. When a user conducts satellite communication, the electronic device needs to be pointed towards the sky in a specific orientation to establish a communication connection with the satellite.

[0003] However, for foldable electronic devices, the antenna's radiation direction may deflect when unfolded, increasing the difficulty of establishing a communication connection with satellites and greatly affecting the user's communication experience. Summary of the Invention

[0004] This application provides a foldable electronic device including an antenna. The antenna uses a conductive portion of the frame of the foldable electronic device as the main radiator and parasitic branches, which can improve the user's satellite communication experience when the foldable electronic device is in the unfolded state.

[0005] In a first aspect, a foldable electronic device is provided, comprising: a first housing and a floor, wherein the first housing includes a first frame, the first frame including a first side and a second side intersecting at an angle, the first frame including a first position, a second position, a third position and a fourth position sequentially disposed, the first position and the second position being located on the first side, the third position and the fourth position being located on the second side, the first frame having a first insulating gap, a second insulating gap and a third insulating gap at the first position, the second position and the fourth position respectively, and the first frame being coupled to the floor at the third position; a second housing and a first pivot, the first pivot being located between the first housing and the second housing, and the first pivot being rotatably connected to both the first housing and the second housing respectively; and a first antenna, the first antenna including: a first radiator and a first parasitic branch, the first radiator being located between the first position and the second position. The first radiator has a conductive portion of a first frame, the first parasitic branch being the conductive portion of the first frame between the third and fourth positions, at least a portion of the first radiator being spaced apart from the floor, and at least a portion of the first parasitic branch being spaced apart from the floor; a first feed circuit and a first electronic component, the first radiator including a first feed point and a first connection point, the first feed circuit being coupled to the first feed point, the first electronic component being coupled between the floor and the first connection point, the first feed point and the first connection point being located on both sides of a virtual axis of the first radiator, and the first radiator on both sides of the virtual axis having the same length; wherein, based on the foldable electronic device being in an unfolded state, the first radiator is used to generate a first resonance, the resonant frequency band of the first resonance including a satellite communication frequency band, and wherein, the first radiator, the first parasitic branch, and the first electronic component are used to generate the radiation pattern of the antenna.

[0006] According to an embodiment of this application, when the foldable electronic device is in the unfolded state, because the first parasitic stub is disposed on the second side, the radiation direction generated by the first parasitic stub is biased to the left of the first direction (the first direction faces the side of the first parasitic stub). The first electronic component can enhance the radiation generated by the first parasitic stub. The first direction is the direction from the bottom of the foldable electronic device to the top of the foldable electronic device, for example, the z-direction. When the foldable electronic device is in the unfolded state, the radiation direction generated by the first radiator is biased to the right of the first direction (the first direction faces the side of the pivot). The first radiator and the first parasitic stub can respectively generate strong radiation on both sides of the top (first direction) of the foldable electronic device, enabling the antenna to have wide beam characteristics.

[0007] In conjunction with the first aspect, in some implementations of the first aspect, when the foldable electronic device is in an unfolded state and the first antenna is operating in the satellite communication frequency band, the current on the floor of the first side of the virtual axis is greater than the current on the floor of the second side of the virtual axis, the first parasitic branch is located on the first side, and the first pivot is located on the second side.

[0008] According to the embodiments of this application, there is a strong current on the floor facing the first parasitic stub, which can better excite the first parasitic stub to generate the first parasitic resonance, thereby improving the radiation characteristics of the radiation generated by the first parasitic resonance and enhancing the radiation characteristics of the antenna on the left side of the first direction (the first direction facing the first parasitic stub).

[0009] In conjunction with the first aspect, in some implementations of the first aspect, the beamwidth of the first antenna is related to the first parasitic stub, based on the foldable electronic device being in an unfolded state.

[0010] According to embodiments of this application, the first radiator and the first parasitic branch can generate strong radiation beams on both sides of the top (first direction) of the foldable electronic device 100. When the two beams are close together, they can be combined into a single radiation beam. Alternatively, when the two beams are offset to the sides in the first direction, the bandwidth of the radiation beam can be widened.

[0011] In conjunction with the first aspect, in certain implementations of the first aspect, the first feed point is located on a first side of the virtual axis, the first connection point is located on a second side of the virtual axis, and the first electronic component exhibits open-circuit characteristics; or, based on the resonant frequency of the first resonance being greater than or equal to 3 GHz, the equivalent inductance of the first electronic component is greater than or equal to 20 nH; based on the resonant frequency of the first resonance being greater than or equal to 2 GHz and less than 3 GHz, the equivalent inductance of the first electronic component is greater than or equal to 10 nH; based on the resonant frequency of the first resonance being greater than or equal to 1 GHz and less than 2 GHz, the equivalent inductance of the first electronic component is greater than or equal to 5 nH.

[0012] In conjunction with the first aspect, in certain implementations of the first aspect, the first connection point is located on a first side of the virtual axis, the first feed point is located on a second side of the virtual axis, and the first electronic component exhibits short-circuit characteristics; or, based on the resonant frequency of the first resonance being greater than or equal to 3 GHz, the equivalent capacitance of the first electronic component is greater than or equal to 0.5 pF; based on the resonant frequency of the first resonance being greater than or equal to 2 GHz and less than 3 GHz, the equivalent capacitance of the first electronic component is greater than or equal to 2 pF; based on the resonant frequency of the first resonance being greater than or equal to 1 GHz and less than 2 GHz, the equivalent capacitance of the first electronic component is greater than or equal to 3 pF.

[0013] According to the embodiments of this application, the first electronic component can be determined based on the positions of the first feed point and the first connection point, so that there is a strong current on the floor facing the side of the first parasitic stub, which can better excite the first parasitic stub to generate the first parasitic resonance, thereby improving the radiation characteristics of the radiation generated by the first parasitic resonance and enhancing the radiation characteristics of the antenna on the left side of the first direction (the side of the first direction facing the first parasitic stub).

[0014] In conjunction with the first aspect, in some implementations of the first aspect, the distance between the first feed point and the first position or the second position is less than or equal to one-third of the length of the first radiator, and / or, the distance between the first connection point and the first position or the second position is less than or equal to one-third of the length of the first radiator.

[0015] According to the embodiments of this application, as the first feed point moves toward one end of the first radiator, it is beneficial to achieve miniaturization of the first radiator.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the first radiator is used to generate the main resonance, the first parasitic stub is used to generate the first parasitic resonance, the first parasitic resonance is located within the resonant frequency band of the main resonance, and the main resonance and the first parasitic resonance together form the first resonance.

[0017] According to the embodiments of this application, as the first connection point moves toward one end of the first radiator, it is beneficial to adjust the current distribution on the floor, and a larger current adjustment range can be achieved.

[0018] In conjunction with the first aspect, in some implementations of the first aspect, the antenna generates an efficiency dip at a first frequency point, and the frequency difference between the resonant frequency of the first resonance and the first frequency point frequency is less than or equal to 50MHz.

[0019] According to an embodiment of this application, the coupling between the first radiator and the first parasitic stub is weak, and it cannot effectively excite the first parasitic resonance. Therefore, a pit corresponding to the first parasitic resonance does not appear clearly in the S-parameter plot. However, since the first parasitic resonance is partially excited by current, a noticeable pit will appear in the efficiency curve (e.g., radiation efficiency or system efficiency). For example, if an efficiency pit appears at a first frequency, then the first frequency can be considered to correspond to the resonance point of the aforementioned first parasitic resonance. In one embodiment, the efficiency (e.g., radiation efficiency or system efficiency) reduction caused by the pit does not exceed 1.5 dB. In another embodiment, the efficiency (e.g., radiation efficiency or system efficiency) reduction caused by the pit does not exceed 1 dB.

[0020] In conjunction with the first aspect, in some implementations of the first aspect, the foldable electronic device performs satellite communication via the first antenna, wherein the gain of the radiation pattern generated by the first antenna is greater than or equal to -6dBic within a 60° angle range with the first direction, and the first direction is the direction from the bottom of the foldable electronic device to the top of the foldable electronic device.

[0021] According to embodiments of this application, the antenna has a wide beamwidth, enabling the foldable electronic device to maintain good communication characteristics within a range of a first angle (e.g., 60°) relative to the first direction. For example, when a user is conducting satellite communication, the antenna's wide beamwidth ensures that the antenna's radiation pattern maintains good characteristics within the first angle. The movement of the communication satellite within this angle will not affect the quality of satellite communication, and the user does not need to frequently change their grip on the foldable electronic device, effectively improving the user experience.

[0022] In conjunction with the first aspect, in some implementations of the first aspect, the first antenna further includes a second parasitic branch, the second parasitic branch being a conductive portion of a first frame between the second position and the third position, at least a portion of the second parasitic branch being spaced apart from the floor.

[0023] According to an embodiment of this application, when the foldable electronic device is in the unfolded state, the second parasitic branch can be used to draw current to the first parasitic branch, enhance the radiation characteristics of the first parasitic branch, and adjust the intensity of the radiation generated by the first parasitic branch deflected to the left in the first direction, thereby adjusting the wide beam characteristics of the antenna.

[0024] In conjunction with the first aspect, in some implementations of the first aspect, the first end of the second parasitic branch and the first end of the first radiator are opposite to each other through the second insulating gap and do not contact each other; the first antenna further includes a second electronic component, the first end of the second parasitic branch includes a second connection point, and the second electronic component is coupled between the floor and the second connection point.

[0025] According to an embodiment of this application, the second electronic component can be used to adjust the coupling amount between the second parasitic branch and the first radiator, adjust the current flowing to the first parasitic branch, and thereby adjust the intensity of the radiation generated by the first parasitic branch deflected to the left of the first direction (the first direction is toward the side of the first parasitic branch).

[0026] In conjunction with the first aspect, in some implementations of the first aspect, the first frame further includes a fifth position, the first position being located between the fifth position and the second position, the first frame being coupled to the ground at the fifth position; the first antenna further includes a third parasitic stub, the third parasitic stub being a conductive portion of the first frame between the first position and the fifth position, at least a portion of the third parasitic stub being spaced apart from the ground, the third parasitic stub being used to generate a second parasitic resonance, the first resonance and the second parasitic resonance jointly supporting the satellite communication frequency band.

[0027] According to an embodiment of this application, the conductive portion of the first frame between the first position and the fifth position serves as a third parasitic stub. This third parasitic stub can be used to generate a third parasitic resonance, thereby extending the antenna's operating frequency band.

[0028] In conjunction with the first aspect, in some implementations of the first aspect, the second housing includes a second frame, the third side of the second frame includes a sixth position and a seventh position, the second frame is coupled to the ground at the sixth position, and the second frame has a fourth insulating gap at the seventh position; the first antenna further includes a fourth parasitic branch, the fourth parasitic branch being a conductive portion of the second frame between the sixth position and the seventh position, at least a portion of the fourth parasitic branch being spaced apart from the ground; based on the foldable electronic device being in an unfolded state, the first side and the third side are the top or bottom side of the foldable electronic device.

[0029] According to an embodiment of this application, one end of the fourth parasitic branch is a grounded end, and the other end is an open end, which can form a structure similar to an IFA. In one embodiment, the fourth parasitic branch can operate in a quarter-wavelength mode.

[0030] In conjunction with the first aspect, in some implementations of the first aspect, the antenna further includes a second tuning circuit, and the first antenna further includes a third electronic component; the fourth parasitic stub includes a third connection point and a fourth connection point, the fourth parasitic stub has a fifth insulating gap between the third connection point and the fourth connection point, and the third electronic component is coupled between the third connection point and the fourth connection point.

[0031] According to an embodiment of this application, a fifth insulating gap is formed on the fourth parasitic stub. This fifth insulating gap can be considered as an equivalent capacitance (e.g., distributed capacitance) on the fourth parasitic stub, which can enable the fourth parasitic stub to form a metamaterial structure. The fourth parasitic stub with this metamaterial structure can increase the radiation aperture. After the fifth insulating gap is formed, the electric field is more dispersed, and the dielectric loss near the conductor is reduced, thus effectively improving the system efficiency and radiation efficiency of the antenna. By using a second tuning circuit coupled between the third and fourth connection points, the equivalent capacitance value of the fifth insulating gap can be adjusted, thereby adjusting the radiation characteristics of the antenna (e.g., the resonant frequency).

[0032] In conjunction with the first aspect, in some implementations of the first aspect, the distance between the third connection point and the fifth insulating gap is less than or equal to 5 mm, and / or the distance between the fourth connection point and the fifth insulating gap is less than or equal to 5 mm.

[0033] According to embodiments of this application, the distance between the third connection point and / or the fourth connection point and the fifth insulating gap can be understood as the minimum distance between the conductors on both sides of the fifth insulating gap and the third connection point and / or the fourth connection point (the length of the fourth parasitic branch between the third connection point and / or the fourth connection point and the fifth insulating gap). When the third electronic component is electrically connected to the third connection point and / or the fourth connection point via a connector (e.g., a metal spring), the distance to the fifth insulating gap can be understood as the minimum distance between the center of the portion of the connector that contacts the connection point and the conductors on both sides of the fifth insulating gap.

[0034] In conjunction with the first aspect, in some implementations of the first aspect, the second housing includes a second frame, the third side of the second frame includes a sixth position and a seventh position, and the second frame has a fourth insulating gap and a fifth insulating gap at the sixth position and the seventh position; the first antenna also includes a fourth parasitic branch, the fourth parasitic branch being a conductive portion of the second frame between the sixth position and the seventh position, and at least a portion of the fourth parasitic branch being spaced apart from the floor; based on the foldable electronic device being in an unfolded state, the first side and the third side are the top or bottom side of the foldable electronic device.

[0035] According to an embodiment of this application, the two ends of the fourth parasitic stub are open, which can form a structure similar to a dipole antenna. In one embodiment, the fourth parasitic stub can operate in a half-wavelength mode.

[0036] In conjunction with the first aspect, in some implementations of the first aspect, the sixth position is located between the first position and the seventh position, based on the foldable electronic device being in an unfolded state.

[0037] According to the embodiments of this application, the grounding end of the fourth parasitic branch is close to the rotating shaft, which facilitates its implementation in actual production.

[0038] In conjunction with the first aspect, in some implementations of the first aspect, the second housing includes a second frame, the second frame including a third and a fourth side intersecting at an angle, the second frame including a sixth position, a seventh position, an eighth position, and a ninth position arranged sequentially, the sixth and seventh positions being located on the third side, the eighth and ninth positions being located on the fourth side, the second frame having a fourth insulating gap, a fifth insulating gap, and a sixth insulating gap at the sixth, seventh, and ninth positions respectively, and the second frame being coupled to the floor at the eighth position; the foldable electronic device may further include a second antenna, the second antenna including: a second radiator and a fifth parasitic branch, the second radiator being the conductive portion of the second frame between the sixth and seventh positions. The fifth parasitic branch is the conductive portion of the second frame between the eighth and ninth positions; at least a portion of the second radiator is spaced apart from the floor; at least a portion of the fifth parasitic branch is spaced apart from the floor; a second feed circuit and a fourth electronic component are also present; the second radiator includes a second feed point and a fifth connection point; the second feed circuit is coupled to the second feed point; and the fourth electronic component is coupled between the floor and the fifth connection point. When the foldable electronic device is in an unfolded state, the first side and the third side are the top or bottom side of the foldable electronic device. When the foldable electronic device is in an unfolded state, the second radiator and the fourth parasitic branch are used to generate a second resonance, the resonant frequency band of which includes a satellite communication frequency band.

[0039] According to embodiments of this application, both the first antenna and the second antenna can operate in the satellite communication frequency band. According to the above embodiments, both the first antenna and the second antenna have wide beam characteristics; therefore, the radiation patterns generated by the first antenna and the second antenna can be superimposed, enabling the foldable electronic device to have better satellite communication performance.

[0040] In conjunction with the first aspect, in some implementations of the first aspect, based on the foldable electronic device being in a folded state, the first radiator and the second radiator at least partially overlap in a second direction, and / or the first parasitic branch and the fifth parasitic branch at least partially overlap in the second direction, the second direction being the thickness direction of the foldable electronic device.

[0041] In conjunction with the first aspect, in some implementations of the first aspect, based on the foldable electronic device being in a folded state, the first insulating gap is aligned with the fourth insulating gap, and / or the second insulating gap is aligned with the fifth gap, and / or the third insulating gap is aligned with the sixth insulating gap.

[0042] According to embodiments of this application, the overlap of radiators / parasitic branches and the alignment of gaps can improve the aesthetics of foldable electronic devices.

[0043] In conjunction with the first aspect, in some implementations of the first aspect, the ratio of the dimension of the floor in the extended direction along the first side when the foldable electronic device is in the unfolded state to that in the folded state is greater than or equal to 1.8 and less than or equal to 2.2.

[0044] In conjunction with the first aspect, in certain implementations of the first aspect, the foldable electronic device performs at least one of the following services in the satellite communication frequency band: receiving and / or sending short messages via satellite, making and / or answering phone calls via satellite, and receiving satellite data. Attached Figure Description

[0045] Figure 1 This is a schematic structural diagram of the foldable electronic device 100 provided in the embodiments of this application.

[0046] Figure 2 This is a schematic structural diagram of the foldable electronic device 100 in its outward-folded state.

[0047] Figure 3 This is a schematic structural diagram of the foldable electronic device 100 in one possible unfolded state.

[0048] Figure 4 This is a schematic structural diagram of a foldable electronic device 100 in one possible folded state.

[0049] Figure 5 This is a schematic structural diagram of a foldable electronic device 100 in one possible partially unfolded state.

[0050] Figure 6 This is a schematic diagram of the common-mode structure of an antenna provided in this application and the corresponding current and electric field distribution.

[0051] Figure 7 This is a schematic diagram of the differential mode structure of another antenna provided in this application and the corresponding current and electric field distribution.

[0052] Figure 8 This is a schematic diagram of the maximum radiation direction of the radiation pattern generated by the antenna 200 in the foldable electronic device 100 provided in this application embodiment.

[0053] Figure 9 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0054] Figure 10 This is a schematic diagram of the current distribution of the antenna 200 provided in the embodiments of this application.

[0055] Figure 11 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0056] Figure 12 yes Figure 9 Simulation results of the S-parameters of the antenna 200 in the foldable electronic device 100 shown.

[0057] Figure 13 yes Figure 9 The simulation results show the system efficiency of the antenna 200 in the foldable electronic device 100.

[0058] Figure 14 It is the radiation pattern of the antenna 200 when the first parasitic branch is not set and the foldable electronic device 100 is in the unfolded state.

[0059] Figure 15 It is the radiation pattern of the antenna 200 when the first parasitic branch is set and the foldable electronic device 100 is in the unfolded state.

[0060] Figure 16 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0061] Figure 17 yes Figure 16 The radiation pattern of antenna 200 at 2 GHz in the foldable electronic device 100 shown.

[0062] Figure 18 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0063] Figure 19 yes Figure 18 The simulation results of the S-parameters of the antenna 200 of the foldable electronic device 100 in the unfolded state are shown.

[0064] Figure 20 yes Figure 18 The radiation pattern of antenna 200 at 2 GHz in the foldable electronic device 100 shown.

[0065] Figure 21 yes Figure 18 The radiation pattern of antenna 200 at 2.1 GHz in the foldable electronic device 100 shown.

[0066] Figure 22 yes Figure 18 The radiation pattern of antenna 200 at 2.2 GHz in the foldable electronic device 100 shown.

[0067] Figure 23 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0068] Figure 24 yes Figure 23 The radiation pattern of antenna 200 at 2 GHz in the foldable electronic device 100 shown.

[0069] Figure 25 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0070] Figure 26 yes Figure 25 The radiation pattern of antenna 200 at 2 GHz in the foldable electronic device 100 shown.

[0071] Figure 27 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0072] Figure 28 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0073] Figure 29 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0074] Figure 30 yes Figure 29 A schematic diagram of the current distribution of the antenna 200 in the electronic device 100 shown.

[0075] Figure 31 yes Figure 29 A schematic diagram of the current distribution of the antenna 200 in the electronic device 100 shown.

[0076] Figure 32 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0077] Figure 33 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0078] Figure 34 yes Figure 32 A schematic diagram of the current distribution of the antenna 200 in the electronic device 100 shown.

[0079] Figure 35 yes Figure 32 A schematic diagram of the current distribution of the antenna 200 in the electronic device 100 shown. Detailed Implementation

[0080] The following explains the terminology that may appear in the embodiments of this application.

[0081] It should be understood that the term "and / or" used in this document is merely a description of the same field in the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0082] The phrase "within the range" used in this application, unless otherwise specified, includes both endpoints of the range by default. For example, in the range of 1 to 5, it includes the values ​​1 and 5.

[0083] Coupling can be understood as direct coupling and / or indirect coupling. "Coupled connection" can be understood as a direct coupling connection and / or indirect coupling connection. Direct coupling can also be called "electrical connection," which can be understood as physical contact and electrical conduction between components; it can also be understood as the form of connection between different components in a circuit structure through physical lines that can transmit electrical signals, such as copper foil or wires on a printed circuit board (PCB). "Indirect coupling" can be understood as electrical conduction between two conductors through a gap / non-contact method. In one embodiment, indirect coupling can also be called capacitive coupling, for example, signal transmission is achieved by forming an equivalent capacitance through coupling between the gaps between two conductive components.

[0084] Components / devices: including at least one of lumped components / devices and distributed components / devices.

[0085] Lumped element / device: This refers to all components whose size is much smaller than the wavelength relative to the circuit's operating frequency. For signals, the characteristics of the components remain constant at all times, regardless of frequency.

[0086] Distributed elements / devices: Unlike lumped elements, if the size of an element is similar to or larger than the wavelength of the circuit's operating frequency, then when a signal passes through the element, the characteristics of each point on the element will vary due to the signal change. In this case, the element as a whole cannot be regarded as a single entity with fixed characteristics, but should be called a distributed element.

[0087] Capacitor: can be understood as lumped capacitance and / or distributed capacitance. Lumped capacitance refers to capacitive components, such as capacitor elements; distributed capacitance (or distributed capacitance) refers to the equivalent capacitance formed by two conductive components separated by a certain gap.

[0088] Inductance: can be understood as lumped inductance and / or distributed inductance. Lumped inductance refers to inductive components, such as inductor elements; distributed inductance (or distributed inductance) refers to the equivalent inductance formed through a conductive element of a certain length.

[0089] Radiator: In an antenna, this is the device used to receive / transmit electromagnetic wave radiation. In some cases, the term "antenna" is narrowly defined as a radiator, which converts guided wave energy from the transmitter into radio waves, or converts radio waves into guided wave energy, for radiating and receiving radio waves. The modulated high-frequency current energy (or guided wave energy) generated by the transmitter is transmitted to the transmitting radiator via a feed line, where it is converted into electromagnetic wave energy of a specific polarization and radiated in the desired direction. The receiving radiator converts electromagnetic wave energy of a specific polarization from a specific direction in space back into modulated high-frequency current energy, which is then transmitted to the receiver input via a feed line.

[0090] Radiators may include conductors with specific shapes and sizes, such as wires or sheets, and this application does not limit the specific shape. In one embodiment, a wire radiator may be simply referred to as a wire antenna. In one embodiment, a wire radiator may be implemented by a conductive frame, and may also be called a frame antenna. In one embodiment, a wire radiator may be implemented by a support conductor, and may also be called a support antenna. In one embodiment, the wire diameter (e.g., including thickness and width) of the wire radiator, or the radiator of the wire antenna, is much smaller than the wavelength (e.g., the wavelength of the medium) (e.g., less than 1 / 16 of the wavelength), and the length may be comparable to the wavelength (e.g., the wavelength of the medium) (e.g., a length of approximately 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). The main forms of wire antennas include dipole antennas, half-wave dipole antennas, monopole antennas, loop antennas, and inverted F antennas (also known as IFA, Inverted F Antenna). For example, in a dipole antenna, each dipole antenna typically includes two radiating stubs, each fed from the feed end of the radiating stub by a feed section. For example, an inverted-FAntenna (IFA) can be considered as a monopole antenna with an added ground path. An IFA antenna has one feed point and one ground point, and is called an inverted-F antenna because its side view is inverted-F shaped. In one embodiment, the sheet radiator may include a microstrip antenna or a patch antenna, such as a planar inverted-F antenna (also known as a PIFA). In one embodiment, the sheet radiator may be implemented using a planar conductor (e.g., a conductive sheet or conductive coating). In one embodiment, the sheet radiator may include a conductive sheet, such as a copper sheet. In one embodiment, the sheet radiator may include a conductive coating, such as silver paste. The shape of the sheet radiator includes circular, rectangular, and annular shapes, and this application does not limit the specific shape. The structure of a microstrip antenna generally consists of a dielectric substrate, a radiator, and a ground plane, wherein the dielectric substrate is disposed between the radiator and the ground plane.

[0091] Radiators may also include slots or gaps formed on a conductor, for example, closed or semi-closed slots or gaps formed on a grounded conductor surface. In one embodiment, a slotted or slit radiator may be simply referred to as a slot antenna or a gap antenna. In one embodiment, the radial dimension (e.g., including width) of the slot or gap of the slot antenna / gap antenna is much smaller than the wavelength (e.g., the dielectric wavelength) (e.g., less than 1 / 16 of the wavelength), while the length dimension may be comparable to the wavelength (e.g., the dielectric wavelength) (e.g., a length of approximately 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). In one embodiment, a radiator with a closed slot or gap may be simply referred to as a closed slot antenna. In one embodiment, a radiator with a semi-closed slot or gap (e.g., an opening added to a closed slot or gap) may be simply referred to as an open slot antenna. In some embodiments, the gap shape is elongated. In some embodiments, the length of the gap is approximately half a wavelength (e.g., the dielectric wavelength). In some embodiments, the length of the gap is approximately an integer multiple of a wavelength (e.g., one dielectric wavelength). In some embodiments, the slot can be fed by transmission lines connected across one or both sides, thereby exciting a radio frequency electromagnetic field on the slot and radiating electromagnetic waves into space. In one embodiment, the radiator of the slot antenna or gap antenna can be implemented by a conductive frame grounded at both ends, also known as a frame antenna; in this embodiment, the slot antenna or gap antenna can be viewed as including a linear radiator, the linear radiator being spaced apart from the ground and grounded at both ends, thereby forming a closed or semi-closed slot or gap. In one embodiment, the radiator of the slot antenna or gap antenna can be implemented by a support conductor grounded at both ends, also known as a support antenna.

[0092] A feed circuit is a combination of all circuits used for receiving and transmitting radio frequency (RF) signals. A feed circuit can include a transceiver and an RF front-end. In some cases, the term "feed circuit" is narrowly interpreted as an RF IC (Radio Frequency Integrated Circuit), which can be considered to include both the RF front-end chip and the transceiver. The feed circuit has the function of converting radio waves (e.g., RF signals) into electrical signals (e.g., digital signals). It is generally considered part of the RF component.

[0093] In some embodiments, the electronic device may also include a test socket (or, RF socket, or RF test socket). This test socket can be used to insert a coaxial cable to test the characteristics of the RF front-end circuitry or the radiator of the antenna. The RF front-end circuitry can be considered as the circuitry coupled between the test socket and the transceiver.

[0094] In some embodiments, the radio frequency front-end circuit can be integrated into a radio frequency front-end chip in an electronic device, or the radio frequency front-end circuit and the transceiver can be integrated into a radio frequency chip in an electronic device.

[0095] It should be understood that any two feed circuits in the first / second / ...Nth feed circuit of this application can share the same transceiver, for example, by transmitting signals through a radio frequency channel in a transceiver (e.g., a port (pin) of a radio frequency chip); they can also share a radio frequency front-end circuit, for example, by processing signals through a tuning circuit or amplifier in a radio frequency front-end.

[0096] It should also be understood that the two feed circuits in the first / second / ...Nth feed circuit of this application typically correspond to two RF test sockets in an electronic device.

[0097] A matching circuit is a circuit used to adjust the radiation characteristics of an antenna. In one embodiment, the matching circuit is coupled between the feed circuit and the corresponding radiator. In another embodiment, the matching circuit is coupled between the test mount and the radiator. Typically, the matching circuit is a combination of circuits coupled between the radiator and the ground plane. In one embodiment, the matching circuit may include a tuning circuit and / or electronic components, which may be electronic components for switching the coupling connection of the radiator. The matching circuit has impedance matching and / or frequency tuning functions. It is typically considered part of the antenna.

[0098] The grounding / feeding structure may include connectors, such as metal springs, and the radiator is coupled to the ground / feeding circuit via the grounding structure. In some embodiments, the feeding structure may include a transmission line / feeding wire, and the grounding structure may include a grounding wire.

[0099] End / Point: The term "end / point" in the context of an antenna radiator's first end / second end / feed end / ground end / feed point / grounding point / connection point should not be narrowly interpreted as necessarily being a point or end physically disconnected from other radiators. It can also be considered a point or segment on a continuous radiator. In one embodiment, an "end / point" can include a connection / coupling region on the antenna radiator that couples to other conductive structures. For example, a feed end / feed point can be a coupling region on the antenna radiator that couples to a feed structure or feed circuit (e.g., a region facing a portion of the feed circuit). Similarly, a ground end / grounding point can be a connection / coupling region on the antenna radiator that couples to a ground structure or grounding circuit. Open End / Closed End: In some embodiments, open end and closed end are relative to whether or not they are grounded; a closed end is grounded, and an open end is not grounded. In some embodiments, open end and closed end are relative to other conductors; a closed end is electrically connected to other conductors, and an open end is not electrically connected to other conductors. In one embodiment, an open end can also be called a floating end, free end, open end, or open circuit end. In one embodiment, the closed end may also be referred to as the ground end or the short-circuit end. It should be understood that in some embodiments, other conductors can be coupled through the open end to transfer coupled energy (which can be understood as transferring current).

[0100] In some embodiments, the understanding of "closed end" can also be from the perspective of current distribution. A closed end or ground end can be understood as a point of high current or low electric field on a radiator. In one embodiment, coupling electronic devices (e.g., capacitors, inductors, etc.) through a closed end can maintain the current distribution characteristics of the point of high current / low electric field. In one embodiment, opening a slit at or near the closed end (e.g., filling the slit with insulating material) can maintain the current distribution characteristics of the point of high current / low electric field.

[0101] In some embodiments, the understanding of "open terminal" can also be from the perspective of current distribution. An open terminal or a floating terminal can be understood as a point with a small current or a point with a large electric field on the radiator. In one embodiment, coupling electronic devices (e.g., capacitors, inductors, etc.) through an open terminal can maintain the current distribution characteristics of the point with a small current or a large electric field.

[0102] It should be understood that when an electronic device (e.g., capacitor, inductor, etc.) is coupled at the radiator end of a gap (which, from the perspective of the radiator's structure, is similar to the radiator at the opening of an open or floating end), the radiator end can be a point with a large current / small electric field. In this case, it should be understood that the radiator end at the gap is actually a closed end or a grounded end, etc.

[0103] The "floating radiator" mentioned in the embodiments of this application refers to a radiator that is not directly connected to the feed line / feed branch and / or ground line / ground branch, but is fed and / or grounded through indirect coupling.

[0104] It should be understood that "suspended" in "suspended end" or "suspended radiator" does not mean that there is no structure around the radiator to support it. In one embodiment, the suspended radiator may be, for example, a radiator disposed on the inner surface of an insulating back cover.

[0105] The current in the same direction / opposite direction mentioned in the embodiments of this application should be understood as the main current on the same side of the conductor being in the same direction / opposite direction. For example, when a current distributed in the same direction is excited on a conductor that is bent or looped (e.g., the current path is also bent or looped), it should be understood that, for example, the main current excited on the conductors on both sides of a looped conductor (e.g., on the conductors on both sides of a gap), although appearing to be in opposite directions, still falls under the definition of current distributed in the same direction in the embodiments of this application. In one embodiment, current in the same direction on a conductor can mean that the current on that conductor has no reversal point. In one embodiment, current in opposite direction on a conductor can mean that the current on that conductor has at least one reversal point. In one embodiment, current in the same direction on two conductors can mean that the currents on both conductors have no reversal points and flow in the same direction. In one embodiment, current in opposite direction on two conductors can mean that the currents on both conductors have no reversal points and flow in opposite directions. Current in the same direction / opposite direction on multiple conductors can be understood accordingly.

[0106] Resonance / Resonant Frequency: The resonant frequency is also called the resonance frequency. The resonant frequency can have a frequency range, that is, the frequency range in which resonance occurs. The frequency corresponding to the strongest resonance point is the center frequency. The return loss characteristic of the center frequency can be less than -20dB. It should be understood that, unless otherwise specified, when the antenna / radiator mentioned in this application generates "first / second...resonance," the first resonance should be the fundamental mode resonance generated by the antenna / radiator, or in other words, the lowest frequency resonance generated by the antenna / radiator. It should be understood that the antenna / radiator can generate one or more antenna modes according to a specific design, and each antenna mode can correspond to a fundamental mode resonance.

[0107] Resonant frequency band: The range of resonant frequencies is the resonant frequency band. The return loss characteristics at any frequency point within the resonant frequency band can be less than -6dB or -5dB.

[0108] Communication band / operating band: Regardless of the type of antenna, it always operates within a certain frequency range (bandwidth). For example, an antenna supporting the B40 band operates within the frequency range of 2300MHz to 2400MHz, or in other words, the antenna's operating band includes the B40 band. The frequency range that meets the specifications can be considered the antenna's operating band.

[0109] The resonant frequency band and the operating frequency band can be the same or can partially overlap. In one embodiment, one or more resonant frequency bands of the antenna can cover one or more operating frequency bands of the antenna.

[0110] Electrical length: can be the ratio of physical length (i.e., mechanical length or geometric length) to the wavelength of the transmitted electromagnetic wave. Electrical length can satisfy the following formula:

[0111] ; Where L is the physical length. The wavelength of the electromagnetic wave.

[0112] Wavelength: or operating wavelength, can be the wavelength corresponding to the center frequency of the resonant frequency or the center frequency of the operating frequency band supported by the antenna. For example, assuming the center frequency of the B1 uplink band (resonant frequency from 1920 MHz to 1980 MHz) is 1955 MHz, then the operating wavelength can be the wavelength calculated using this frequency. Not limited to the center frequency, "operating wavelength" can also refer to the wavelength corresponding to the resonant frequency or a non-center frequency of the operating frequency band.

[0113] It should be understood that the wavelength of a radiation signal in air can be calculated as follows: (air wavelength, or vacuum wavelength) = speed of light / frequency, where the frequency is the frequency of the radiation signal (MHz), and the speed of light can be taken as 3 × 10⁸ m / s. The wavelength of a radiation signal in a medium can be calculated as follows: Medium wavelength = (speed of light / ... ) / frequency, where, The wavelength is the relative permittivity of the medium. In the embodiments of this application, the wavelength typically refers to the medium wavelength, which can be the medium wavelength corresponding to the center frequency of the resonant frequency, or the medium wavelength corresponding to the center frequency of the operating frequency band supported by the antenna. For example, assuming the center frequency of the B1 uplink band (resonant frequency of 1920 MHz to 1980 MHz) is 1955 MHz, the wavelength can be the medium wavelength calculated using this frequency. Not limited to the center frequency, the "medium wavelength" can also refer to the medium wavelength corresponding to the resonant frequency or a non-center frequency of the operating frequency band. For ease of understanding, the medium wavelength mentioned in the embodiments of this application can be simply calculated using the relative permittivity of the medium filling one or more sides of the radiator.

[0114] Antenna system efficiency (total efficiency): refers to the ratio of input power to output power at the antenna port.

[0115] Antenna radiation efficiency refers to the ratio of the power radiated into space by an antenna (i.e., the power effectively converted into electromagnetic waves) to the active power input to the antenna. The active power input to the antenna equals the antenna's input power minus the power loss. Power loss primarily includes return loss power, ohmic loss power of the metal, and / or dielectric loss power. Radiation efficiency measures an antenna's radiation capability; metal loss and dielectric loss are both factors affecting radiation efficiency.

[0116] Those skilled in the art will understand that efficiency is generally expressed as a percentage, and there is a corresponding conversion relationship between it and dB. The closer the efficiency is to 0dB, the better the efficiency of the antenna.

[0117] Antenna return loss: This can be understood as the ratio of the signal power reflected back to the antenna port after passing through the antenna circuit to the transmit power at the antenna port. The smaller the reflected signal, the larger the signal radiated into space through the antenna, and the higher the antenna's radiation efficiency. Conversely, the larger the reflected signal, the smaller the signal radiated into space through the antenna, and the lower the antenna's radiation efficiency.

[0118] Antenna return loss can be represented by the S11 parameter, which is one of the S-parameters. S11 represents the reflection coefficient, and this parameter characterizes the antenna's transmission efficiency. The S11 parameter is usually negative. The smaller the S11 parameter, the smaller the antenna return loss, the less energy the antenna reflects back, which means more energy actually enters the antenna, and the higher the antenna's system efficiency. Conversely, the larger the S11 parameter, the greater the antenna return loss, and the lower the antenna's system efficiency.

[0119] It should be noted that in engineering, an S11 value of -6dB is generally used as the standard. When the S11 value of an antenna is less than -6dB, the antenna can be considered to be working normally, or the antenna can be considered to have good transmission efficiency.

[0120] Antenna pattern: also known as radiation pattern. It refers to the graph showing the relative field strength (normalized modulus) of the antenna's radiated field as a function of direction at a certain distance from the antenna (far field). It is usually represented by two mutually perpendicular planar patterns passing through the direction of maximum radiation of the antenna.

[0121] Antenna radiation patterns typically have multiple radiating beams. The beam with the highest radiating intensity is called the main lobe, and the remaining beams are called side lobes. Among the side lobes, the side lobe in the opposite direction to the main lobe is also called the back lobe.

[0122] Directivity: Also known as the antenna's directivity, it refers to the ratio of the maximum power density to the average power density on the antenna's radiation pattern at a certain distance from the antenna (far field). It is a dimensionless ratio greater than or equal to 1. It can be used to indicate the energy radiation characteristics of an antenna. The larger the directivity, the more energy the antenna radiates in a particular direction, and the more concentrated the energy radiation is.

[0123] Antenna gain: Characterizes the degree to which an antenna concentrates the radiated input power. Generally, the narrower the main lobe and the smaller the side lobes of the antenna pattern, the higher the antenna gain.

[0124] Antenna polarization: At a given point in space, the electric field intensity E (vector) is a function of time t. As time progresses, the endpoint of the vector periodically traces a trajectory in space. If this trajectory is a straight line and perpendicular to the ground, it is called vertical polarization; if it is horizontal to the ground, it is called horizontal polarization. If the trajectory is elliptical or circular, and when viewed along the propagation direction, it rotates clockwise or right-handed with time, it is called right-hand circular polarization (RHCP); if it rotates counterclockwise or left-handed with time, it is called left-hand circular polarization (LHCP).

[0125] Ground (GND): Generally refers to at least a portion of any grounding layer, ground plane, or grounding metal layer within an electronic device (such as a mobile phone), or at least a portion of any combination of the aforementioned grounding layers, ground planes, or grounding components. "Ground" can be used for grounding components within an electronic device. In one embodiment, "ground" can be the grounding layer of a circuit board in an electronic device, or a grounding metal layer formed by a ground plane formed within the frame of the electronic device or a metal film formed beneath the screen. In one embodiment, the circuit board can be a printed circuit board (PCB), such as an 8-layer, 10-layer, or 12-14-layer board with 8, 10, 12, 13, or 14 layers of conductive material, or components separated and electrically insulated by dielectric or insulating layers such as fiberglass or polymers. In one embodiment, the circuit board includes a dielectric substrate, a grounding layer, and a trace layer, with the trace layer and grounding layer electrically connected via vias. In one embodiment, components such as displays, touchscreens, input buttons, transmitters, processors, memory, batteries, charging circuits, and system-on-chip (SoC) architectures can be mounted on or connected to a circuit board; or electrically connected to trace layers and / or ground layers in the circuit board. For example, a radio frequency source is disposed on a trace layer.

[0126] Any of the aforementioned grounding layers, ground planes, or grounding metal layers are made of conductive materials. In one embodiment, the conductive material may be any of the following: copper, aluminum, stainless steel, brass and their alloys, copper foil on an insulating substrate, aluminum foil on an insulating substrate, gold foil on an insulating substrate, silver-plated copper, silver-plated copper foil on an insulating substrate, silver foil on an insulating substrate and tin-plated copper, graphite-impregnated cloth, graphite-coated substrates, copper-plated substrates, brass-plated substrates, and aluminum-plated substrates. Those skilled in the art will understand that grounding layers / ground planes / grounding metal layers may also be made of other conductive materials.

[0127] Grounding: refers to coupling with the aforementioned ground / floor in any way. In one embodiment, grounding can be achieved through physical grounding, such as through a structural component of the mid-frame to achieve a physical ground at a specific location on the frame (or, physical ground). In another embodiment, grounding can be achieved through device grounding, such as through devices like capacitors / inductors / resistors connected in series or parallel (or, device ground).

[0128] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings.

[0129] Figure 1 This is a schematic diagram of the structure of a foldable electronic device 100 provided in an embodiment of this application. The foldable electronic device 100 can be a mobile phone, tablet computer, e-reader, laptop computer, wearable device such as a watch, or other electronic device with folding function. Figure 1 The illustrated embodiment uses a foldable phone as an example.

[0130] refer to Figure 1 The foldable electronic device 100 may include a flexible display screen 110, a first frame 121, a first cover 122, a second frame 123, a second cover 124, and a hinge 125. In some embodiments, the first frame 121, the first cover 122, the second frame 123, and the second cover 124 may form a first housing 126 and a second housing 127 supporting the flexible display screen 110. In other embodiments, at least one of the first cover 122 and the second cover 124 may include a display screen.

[0131] Figure 1The dot matrix pattern in the center can schematically represent the flexible display screen 110. The flexible display screen 110 can be highly flexible and bendable, providing users with a new interaction method based on its bendability. The display panel of the flexible display screen 110 can be any of the following: liquid crystal display (LCD), organic light-emitting diode (OLED), active-matrix organic light-emitting diode (AMOLED), flex light-emitting diode (FLED), quantum dot light-emitting diode (QLED), etc. This application embodiment does not limit this choice.

[0132] The flexible display screen 110 may include a first display section 111 corresponding to the first housing 126, a second display section 112 corresponding to the second housing 127, and a foldable display section 113 corresponding to the pivot 125. The foldable display section 113 may be connected between the first display section 111 and the second display section 112.

[0133] The first frame 121 may surround the outer periphery of the first cover 122, and at least a portion of the first frame 121 may also surround the outer periphery of the first display portion 111. The first display portion 111 may be arranged parallel to and spaced apart from the first cover 122, and the first display portion 111 and the first cover 122 may be located on opposite sides of the first frame 121. The space between the first display portion 111 and the first cover 122 may be used to house components of the foldable electronic device 100, such as antennas, circuit board assemblies, etc.

[0134] The second frame 123 may surround the outer periphery of the second cover 124, and at least a portion of the second frame 123 may also surround the outer periphery of the second display portion 112. The second display portion 112 may be arranged parallel to and spaced apart from the second cover 124, and the second display portion 112 and the second cover 124 may be located on opposite sides of the second frame 123. The space between the second display portion 112 and the second cover 124 may be used to house components of the foldable electronic device 100, such as antennas, circuit board assemblies, etc.

[0135] In one embodiment provided in this application, the cover and the frame can be two parts of the housing of the foldable electronic device 100. The cover and the frame can be connected, and the connection method does not have to be an assembly method such as snap-fit, adhesive, welding, riveting, or clearance fit. The connection between the cover and the frame is usually difficult to separate. In another embodiment provided in this application, the cover and the frame can be two different components. By assembling the cover and the frame together, the housing of the foldable electronic device 100 can be formed.

[0136] The frame can at least partially serve as an antenna radiator for transmitting / receiving radio frequency signals. This portion of the frame serving as the radiator can have gaps between it and the rest of the cover, thereby ensuring a good radiation environment for the antenna radiator. In one embodiment, the cover can have a slit at the portion of the frame serving as the radiator to facilitate antenna radiation.

[0137] The antenna of the electronic device 100 can also be disposed within the frame. When the frame of the electronic device 100 is made of a non-conductive material, the antenna radiator can be located inside the electronic device 100 and positioned along the frame. For example, the antenna radiator can be positioned close to the frame to minimize the volume occupied by the antenna radiator and to be closer to the outside of the electronic device 100, thereby achieving better signal transmission performance. It should be noted that "positioning the antenna radiator close to the frame" means that the antenna radiator can be placed flush against the frame or close to the frame; for example, there can be a small gap between the antenna radiator and the frame.

[0138] The antenna of electronic device 100 can also be housed within the casing, such as a bracket antenna or a millimeter-wave antenna. Figure 1 (Not shown in the image). The clearance of the antenna disposed within the housing can be obtained by a slit / opening on any of the cover, and / or frame, and / or display screen, or by a non-conductive gap / aperture formed between any of them. The clearance setting of the antenna can ensure the radiation performance of the antenna. It should be understood that the clearance of the antenna can be a non-conductive area formed by any conductive components within the electronic device 100, through which the antenna radiates signals to the external space. In one embodiment, the antenna can be a flexible printed circuit (FPC) based antenna, a laser-direct-structuring (LDS) based antenna, or a microstrip disk antenna (MDA), etc. In one embodiment, the antenna can also be a transparent structure embedded inside the display screen of the electronic device 100, making the antenna a transparent antenna unit embedded inside the display screen of the electronic device 100.

[0139] The foldable electronic device 100 may also include a printed circuit board (PCB) (not shown). The PCB is disposed within the cavity formed by the cover. The PCB may be made of a flame-retardant material (FR-4) dielectric substrate, a Rogers dielectric substrate, a hybrid dielectric substrate of Rogers and FR-4, etc. Here, FR-4 is a designation for a flame-retardant material grade, and Rogers dielectric substrate is a high-frequency board. Electronic components, such as radio frequency chips, are carried on the PCB. In one embodiment, a metal layer may be disposed on the PCB. This metal layer can be used to ground the electronic components carried on the PCB, or to ground other components, such as bracket antennas, frame antennas, etc. This metal layer may be referred to as a ground plane, grounding plane, or grounding layer. In one embodiment, the metal layer may be formed by etching metal onto the surface of any dielectric substrate in the PCB. In one embodiment, the grounding metal layer may be disposed on the side of the PCB near the flexible display screen 110. In one embodiment, the edge of the PCB may be considered as the edge of its grounding layer. The electronic device 100 may also have other ground planes / grounding planes, as previously described, and will not be repeated here.

[0140] A hinge 125 can connect the first housing 126 and the second housing 127. Under the action of the hinge 125, the first housing 126 and the second housing 127 can move closer to or further away from each other. Correspondingly, the first display portion 111 and the second display portion 112 of the flexible display screen 110 can move closer to or further away from each other, allowing the flexible display screen 110 to be folded or unfolded.

[0141] In one example, the pivot 125 may include a main shaft, a first connecting component, and a second connecting component. The first connecting component may be fixed to the first cover 122, and the second connecting component may be fixed to the second cover 124. The first and second connecting components are rotatable relative to the main shaft. Through the mutual movement of the first and second connecting components, the mutual movement of the first housing 126 and the second housing 127 can be driven, realizing the opening and closing function of the foldable electronic device 100.

[0142] Figure 1 The foldable electronic device 100 shown is currently in its unfolded state. In the unfolded state, the angle between the first housing 126 and the second housing 127 can be approximately 180°. The flexible display screen 110 can be positioned as follows: Figure 1 The unfolded state shown.

[0143] Figure 2 This illustrates one possible folded state of the foldable electronic device 100. Figure 2The outward folding state of the foldable electronic device 100 is shown (the outward folding state can be simply referred to as the outward folding state). Figure 2 The outward folding state shown can be, for example, a left-right outward folding state or a top-bottom outward folding state. (The following is in conjunction with...) Figure 1 and Figure 2 This describes one possible folding state of the foldable electronic device 100.

[0144] In this embodiment, the foldable electronic device 100 being in a folded state means that the foldable electronic device 100 is currently bent, and the degree of bending of the foldable electronic device 100 reaches its maximum. At this time, the first cover 122 and the second cover 124 can be arranged approximately parallel, spaced apart from each other, and facing each other, and the distance between the first cover 122 and the second cover 124 is minimal. At least a portion of the first housing 126 and the second housing 127 are housed within the space enclosed by the flexible display screen 110; the first display portion 111, the first housing 126, the second housing 127, and the second display portion 112 are stacked sequentially. Similarly, the first display portion 111 and the second display portion 112 can be approximately parallel and spaced apart from each other, and the distance between the first cover 122 and the second cover 124 is less than the distance between the first display portion 111 and the second display portion 112. At this time, the first display portion 111 and the second display portion 112 can be considered to be located on different planes.

[0145] Combination Figure 1 and Figure 2 When the foldable electronic device 100 is in the outward-folded state, the first cover 122 and the second cover 124 can approach each other, and the first display unit 111 and the second display unit 112 can approach each other. The first display unit 111, the second display unit 112, and the foldable display unit 113 can form a housing area for accommodating the first cover 122, the second cover 124, and the hinge 125. That is, the first cover 122, the second cover 124, and the hinge 125 can be accommodated in the space between the first display unit 111 and the second display unit 112.

[0146] It should be understood that the foldable electronic device 100 can be folded inward (the inward folded state can be simply referred to as the inward folded state). When the foldable electronic device 100 is in the inward folded state, the first cover 122 and the second cover 124 can be brought close to each other, and the first display unit 111 and the second display unit 112 can be brought close to each other. The first cover 122, the second cover 124, and the hinge 125 can form a housing area for accommodating the first display unit 111, the second display unit 112, and the foldable display unit 113. That is, the first display unit 111, the second display unit 112, and the foldable display unit 113 can be accommodated in the space between the first cover 122 and the second cover 124.

[0147] The foldable electronic device 100 can switch between a folded state and an unfolded state. When the foldable electronic device 100 is in the folded state, it occupies a relatively small space; when the foldable electronic device 100 is in the unfolded state, it can display a relatively large screen to increase the user's viewing range.

[0148] The foldable electronic device 100 may also include a third housing 128 and a hinge 129, such as Figure 3 As shown. The hinge 129 can be connected between the third housing 128 and the second housing 127. The third housing 128 and the second housing 127 can be close to or far from each other. As the number of foldable parts of the foldable electronic device 100 increases, while maintaining the same screen size in the unfolded state, the space occupied by the foldable electronic device 100 can be further reduced in the folded state.

[0149] And in Figure 3 The foldable electronic device 100 shown has three foldable parts (first housing 126, second housing 127 and third housing 128), and therefore has three states: 1. unfolded state; 2. folded state; 3. partially unfolded state.

[0150] 1. For example Figure 3 The diagram shows one possible unfolded state of the foldable electronic device 100. In the unfolded state, the angle between the first housing 126, the second housing 127, and the third housing 128 can be approximately 180°. The flexible display screen 110 can also be in the unfolded state.

[0151] 2. For example Figure 4 The diagram shows a possible folded state (tri-fold state) of the foldable electronic device 100. In the folded state, the first housing 126 and the second housing 127 rotate along the pivot 125, and the second housing 127 and the third housing 128 rotate along the pivot 129, maximizing the bending degree of the foldable electronic device 100. At this time, the first housing 126, the second housing 127, and the third housing 128 can be considered to be located on different planes.

[0152] It should be understood that, for the sake of a concise discussion, in Figure 4In the illustrated structure, the foldable electronic device 100 is folded in an S-shape (the sides of the foldable electronic device 100 are S-shaped, and the second housing 127 is located between the first housing 126 and the third housing 128). In one embodiment, the foldable electronic device 100 can also be folded in a G-shape (the sides of the foldable electronic device 100 are G-shaped, and the third housing 128 is located between the first housing 126 and the second housing 127). This application does not limit the folding state of the foldable electronic device 100.

[0153] 3. For example Figure 5 The diagram illustrates one possible partially unfolded state (two-fold state) of the foldable electronic device 100. In the partially unfolded state, the angle between the first housing 126 and the second housing 127 can be approximately 180°. The second housing 127 and the third housing 128 rotate along the pivot 129, causing the third housing 128 to move closer to the second housing 127. At this time, the first housing 126 and the second housing 127 are considered to be on the same plane, while the second housing 127 and the third housing 128 can be considered to be on different planes. In another possible partially unfolded state, the angle between the third housing 128 and the second housing 127 can be approximately 180°. The first housing 126 and the second housing 127 rotate along the pivot 125, causing the first housing 126 to move closer to the second housing 127.

[0154] Figure 1 The electronic device 100 is shown only schematically, and the actual shape, size, and construction of these components are not subject to change. Figure 1 limited.

[0155] It should be understood that in the embodiments of this application, the side where the display screen of the electronic device is located can be considered as the front, the side where the back cover is located as the back, and the side where the frame is located as the side.

[0156] It should be understood that, in the embodiments of this application, when a user holds (typically vertically and facing the screen) an electronic device, the orientation of the electronic device includes a top, bottom, left side, and right side.

[0157] First, by Figure 6 and Figure 7 This application will involve two antenna modes. Among them, Figure 6 This is a schematic diagram of the common-mode structure of an antenna provided in this application and the corresponding current and electric field distribution. Figure 7 This is a schematic diagram of the differential mode structure of another antenna provided in this application and the corresponding current and electric field distribution. Figure 6 and Figure 7 The antenna radiator is open at both ends, and its common-mode and differential-mode modes can be referred to as line common-mode and line differential-mode, respectively.

[0158] It should be understood that the “common-differential mode” or “CM-DM mode” in this application refers to the linear common-mode mode and the linear differential-mode mode generated on the same radiator.

[0159] 1. Wire common mode (CM) mode Figure 6 Figure (a) shows that the radiator of antenna 40 is open at both ends and connected to a feed circuit (not shown) at the middle position 41. In one embodiment, the antenna 40 is fed in a symmetrical feed configuration. The feed circuit can be connected to the middle position 41 of antenna 40 via feed wire 42. It should be understood that symmetrical feed can be understood as one end of the feed circuit being connected to the radiator and the other end being coupled to the ground to achieve grounding, wherein the connection point between the feed circuit and the radiator (feed point) is located at the center of the radiator, which may be, for example, the midpoint of the geometry, or the midpoint of the electrical length (or a certain area within a certain range near the aforementioned midpoint).

[0160] The middle position 41 of the antenna 40 may be, for example, the geometric center of the antenna, or the midpoint of the electrical length of the radiator, such as the connection point between the feed line 42 and the antenna 40, which covers the middle position 41.

[0161] Figure 6 (b) shows the current and electric field distribution of antenna 40. Figure 6 As shown in (b), the current exhibits a reverse distribution on both sides of the middle position 41, for example, a symmetrical distribution; the electric field exhibits a unidirectional distribution on both sides of the middle position 41. Figure 6 As shown in (b), the current at feeder line 42 exhibits a unidirectional distribution. Based on the unidirectional current distribution at feeder line 42, Figure 6 The type of feed shown in (a) can be called a line CM feed. This is based on the fact that the current is distributed in opposite directions on both sides of the connection between the radiator and the feed line 42. Figure 6 The antenna mode shown in (b) can be called the line CM mode (or simply CM mode; for example, for a line antenna, CM mode refers to the line CM mode). Figure 6 The current and electric field shown in (b) can be referred to as the current and electric field of the line CM mode, respectively.

[0162] The current is stronger at the middle position 41 of antenna 40 (the current is strongest near the middle position 41 of antenna 40), and weaker at both ends of antenna 40. Figure 6As shown in (b) of the diagram. The electric field is weaker at the middle position 41 of the antenna 40 and stronger at both ends of the antenna 40.

[0163] 2. Differential mode (DM) like Figure 7 Image (a) shows that the two radiators of antenna 50 have open ends on both sides and are connected to a feed circuit at the middle position 51. In one embodiment, antenna 50 is fed using an anti-symmetrical feed. One end of the feed circuit is connected to one of the radiators via a feed wire 52, and the other end of the feed circuit is connected to the other radiator via a feed wire 52. The middle position 51 can be the geometric center of antenna 50, or the gap formed between the radiators.

[0164] It should be understood that the "center-antisymmetric feeding" mentioned in this application can be understood as the positive and negative poles of the feeding unit being connected to two connection points near the midpoint of the radiator. In one embodiment, the signal amplitudes output by the positive and negative poles of the feeding unit are the same, but the phases are opposite, for example, the phase difference is 180°±10°.

[0165] Figure 7 (b) shows the current and electric field distribution of antenna 50. Figure 7 As shown in (b), the current in the antenna 50 is distributed in the same direction on both sides of the middle position 51, for example, an antisymmetric distribution; the electric field is distributed in opposite directions on both sides of the middle position 51. Figure 7 As shown in (b), the current at feeder line 52 exhibits a reverse distribution. Based on the reverse current distribution at feeder line 52, Figure 7 The type of feed shown in (a) can be called a line DM feed. This is based on the fact that the current is distributed in the same direction on both sides of the connection between the radiator and the feed line 52. Figure 7 The antenna mode shown in (b) can be called line DM mode (or simply DM mode; for example, for a line antenna, DM mode refers to line DM mode). Figure 7 The current and electric field shown in (b) can be referred to as the current and electric field in the line DM mode, respectively. It should be understood that, based on the fact that the current is distributed in the same direction on both sides of the connection between the radiator and the feed line 52, Figure 7 The antenna mode shown in (b) can also be called the half-antenna mode, or the half-wavelength mode, or simply the half-mode.

[0166] In one embodiment, in online DM mode, or half-mode, the current is stronger at the middle position 51 of antenna 50 (the current peak is located near the middle position 51 of antenna 50), and weaker at both ends of antenna 50, such as... Figure 7As shown in (b) of the diagram. The electric field is weaker at the middle position 51 of the antenna 50 and stronger at both ends of the linear antenna 50.

[0167] It should be understood that an antenna radiator can be considered as a metal structural component that generates radiation, and its quantity can be one, such as... Figure 6 As shown, or, it can be two items, such as Figure 7 As shown, adjustments can be made according to actual design or production needs. For example, for the line CM mode, it can also be as follows: Figure 7 The diagram illustrates the use of two radiators, positioned opposite each other with a gap between them. Symmetrical feeding is employed at the two ends closest to each other; for example, feeding the same feed source signal into both ends of the two radiators can achieve the same result as... Figure 6 The antenna structure shown achieves a similar effect. Correspondingly, for line DM mode, it can also be done as follows... Figure 6 The diagram illustrates a radiator with two feed points positioned at its center, using an anti-symmetrical feeding method. For example, by feeding signals of the same amplitude but opposite phase to the two symmetrical feed points on the radiator, a signal similar to [the one described above] can be obtained. Figure 7 The antenna structure shown has a similar effect.

[0168] 3. Line CM-DM mode The above Figure 6 and Figure 7 The diagrams show how different feeding methods generate line CM mode and line DM mode when both ends of the radiator are open.

[0169] When the antenna is fed asymmetrically (the feed point is off-center from the radiator, including side-feed or offset feed), or when the grounding point of the radiator (coupled to the ground) is asymmetrical (off-center from the radiator), the antenna can simultaneously generate a first resonance and a second resonance, corresponding to the line CM mode and the line DM mode, respectively. For example, the first resonance corresponds to the line CM mode, with current and electric field distributions as follows: Figure 6 As shown in (b) above. The second resonance corresponds to the line DM mode, and the current and electric field distribution is as follows. Figure 7 As shown in (b) of the diagram.

[0170] Figure 8 This is a schematic diagram of the maximum radiation direction of the radiation pattern generated by the antenna 200 in the foldable electronic device 100 provided in this application embodiment.

[0171] It should be understood that, for the sake of brevity, the foldable device 100 is described using only the first housing 201 and the second housing 202 as an example. The first housing 201 and the second housing 202 can be rotatably connected to the pivot 203.

[0172] like Figure 8As shown, in the unfolded state of the foldable electronic device 100, due to the increased size of the floor 300 in the x direction, the current on the floor 300 will affect the maximum radiation direction of the radiation pattern generated by the antenna 200, causing it to deviate from the top direction (e.g., the z direction) (e.g., deflected in the x direction).

[0173] When users conduct satellite communication, the maximum radiation direction of the antenna needs to be pointed towards the satellite to achieve satellite alignment (establish a communication connection with the satellite). When the foldable electronic device 100 is in the unfolded state, the maximum radiation direction of the radiation pattern generated by the antenna 200 deviates from the top direction of the foldable electronic device 100 (e.g., the z-direction). Furthermore, the beam of the antenna 200 is generally narrow, for example, it can only have good communication performance within a range of 30° with respect to the top direction (e.g., the z-direction).

[0174] The beamwidth can be understood as the gain of the radiation pattern generated by the antenna 200 being greater than or equal to a threshold within a range of a first angle relative to the direction pointing to the top of the foldable electronic device 100 (e.g., the z-direction), where the first angle is the beamwidth.

[0175] When the beamwidth of antenna 200 is narrow, the maximum radiation direction of the radiation pattern generated by antenna 200 deviates from the top direction (e.g., the z-direction) of foldable electronic device 100. Users need to frequently change the posture of holding foldable electronic device 100 so that the maximum radiation direction of the radiation pattern generated by antenna 200 points to the top direction (e.g., the z-direction) of foldable electronic device 100 to maintain the alignment with the satellite. Otherwise, the communication quality deteriorates, which causes great inconvenience in use.

[0176] If the antenna 200 has a wide beamwidth, it has wide beam characteristics and good communication performance within a large angle with the top direction (e.g., the z direction). When conducting satellite communication, the user does not need to change the posture of holding the foldable electronic device 100, which helps to improve the user experience.

[0177] This application provides a foldable electronic device, which includes an antenna. The antenna consists of a conductive portion of the frame of the foldable electronic device as the main radiator and parasitic branches, which can improve the user's experience in satellite communication when the foldable electronic device is in the unfolded state.

[0178] Figure 9 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0179] like Figure 9As shown, the foldable electronic device 100 may include a first housing 201, a second housing 202, a pivot 203, and a floor 300.

[0180] It should be understood that the floor 300 described in this application embodiment has different dimensions in different states of the foldable electronic device 100. In one embodiment, when the foldable electronic device 100 is in a folded state, the ratio of the length to the width of the floor 300 is greater than or equal to 1.6 and less than or equal to 2.5. The width can be understood as the dimension of the floor 300 extending along the top edge (top edge) or bottom edge (bottom edge) of the foldable electronic device 100. In one embodiment, when the foldable electronic device 100 is in an unfolded state, the length of the foldable electronic device 100 remains unchanged while the width increases, and the ratio of the length to the width of the floor 300 is greater than or equal to 0.8 and less than or equal to 1.5.

[0181] The width and length of floor 300 can be understood as the dimensions of the equivalent floor formed by all metal layers or metal parts that can be equivalent to floor (e.g., metal layers in the middle plate, metal layers in the PCB, metal layers in the display screen, etc.) in the length extension direction and the width extension direction.

[0182] The first housing 201 includes a first frame 210, at least a portion of which is spaced apart from the floor 300. The second housing 202 includes a second frame 220, at least a portion of which is spaced apart from the floor 300.

[0183] The pivot 203 is located between the first housing 201 and the second housing 202, and the pivot 203 is rotatably connected to the first housing 201 and the second housing 202 respectively, so that the first housing 201 and the second housing 202 can rotate relative to each other. In one embodiment, the floor 300 may include a first part and a second part, the first part may be located inside the first housing 201, the second part may be located inside the second housing 202, and the first part and the second part may be connected by the pivot 203.

[0184] It should be understandable that, Figure 9In the foldable electronic device 100 shown, a pivot 203 is directly connected to a first housing 201 and a second housing 202, allowing the first housing 201 and the second housing 202 to rotate relative to each other. Furthermore, "pivot 203 is rotatably connected to the first housing 201 and the second housing 202" includes the case where the pivot 203 can be rotatably connected to the first or second housing via one or more second pivots and one or more intermediate housings. For example, in one embodiment, the foldable electronic device 100 may further include a first pivot and a second pivot, and one or more intermediate housings located between the first pivot and the second pivot. The first pivot is located between the first housing 201 and the intermediate housings, and is rotatably connected to both the first housing 201 and the intermediate housings, allowing them to rotate relative to each other. The second pivot is located between the intermediate housings and the second housing 202, and is rotatably connected to both the intermediate housings and the second housing 202, allowing them to rotate relative to each other.

[0185] The first frame 210 includes a first position 211, a second position 212, a third position 213, and a fourth position 214 arranged sequentially. The first frame 210 has a first insulating gap, a second insulating gap, and a third insulating gap respectively at the first position 211, the second position 212, and the fourth position 214. The first frame 210 is coupled to the floor 300 at the third position 213.

[0186] In this embodiment, the first position 211 and the second position 212 are located on the first side 301 of the first frame 210, and the third position 213 and the fourth position 214 are located on the second side 302. The first side 301 and the second side 302 intersect at an angle. In one embodiment, the length of the first side 301 is less than the length of the second side 302. In one embodiment, the first side 301 is the top or bottom edge of the foldable electronic device 100. For the sake of brevity, in this embodiment, only the example of the first side 301 being the top edge of the foldable electronic device 100 is used for illustration.

[0187] It should be understood that insulating gaps can be present on the frame, with the conductive portion of the frame between two insulating gaps or between an insulating gap and a grounding point serving as the radiator, thus forming a frame antenna. When the frame is made of a conductive material such as metal, the insulating gap can be understood as a gap in the frame filled with a non-metallic material (insulating material). Furthermore, this gap is visible on the outer surface. When the outer surface of the frame is a non-conductive material, the insulating gap can be understood as a gap between the conductive portions within the frame, which can be filled with a non-metallic material (insulating material), or it can be filled with air instead of a non-metallic material. Furthermore, this gap is not visible on the outer surface.

[0188] In one embodiment, the width of the first insulating gap, the second insulating gap, and the third insulating gap is greater than or equal to 0.2 mm and less than or equal to 2 mm. It should be understood that the width of any gap created on the frame in this embodiment is within the above range.

[0189] In one embodiment, the ratio of the dimension of the floor 300 when the foldable electronic device 100 is in the unfolded state to the dimension of the foldable electronic device 100 in the folded state along the extension direction of the first side (width of the foldable electronic device 100) is greater than or equal to 1.8 and less than or equal to 2.2.

[0190] The foldable electronic device 100 may also include an antenna 200. The antenna 200 includes a first radiator 231, a first parasitic branch 241, a first feed circuit 230, and a first electronic component 261.

[0191] In this embodiment, the first radiator 231 is the conductive portion of the first frame 210 between the first position 211 and the second position 212. The first parasitic branch 241 is the conductive portion of the first frame 210 between the third position 213 and the fourth position 214. In one embodiment, the first end and the second end of the first radiator 231 are open ends. The first end of the first parasitic branch 241 is a grounded end, and the second end is an open end.

[0192] The first radiator 231 includes a first feed point 251 and a first connection point 221. A first feed circuit 230 is coupled to the first feed point 251. A first electronic component 261 is coupled between the first connection point 221 and the ground plane 300. The first feed point 251 and the first connection point 221 are located on opposite sides of a virtual axis of the first radiator 231, and the lengths of the first radiator 231 on both sides of the virtual axis are the same.

[0193] It should be understood that the two sides of the virtual axis described in this embodiment can be understood as the two sides of the plane formed by the virtual axis and the thickness direction of the foldable electronic device 100 (e.g., the direction perpendicular to the display screen in the unfolded state) (e.g., the y-direction). The first parasitic branch 241 is located on the first side of the virtual axis, and the pivot 203 is located on the second side of the virtual axis.

[0194] Meanwhile, due to the requirements of the production design, the edge of the first frame 210 facing the floor 300 (facing the interior of the foldable electronic device 100) is not flat. Therefore, in the application embodiment, the virtual axis of the first radiator 231 can be understood as a straight line perpendicular to the center of the first radiator 231.

[0195] The operating frequency band of antenna 200 may include the satellite communication frequency band. When the foldable electronic device 100 is in the unfolded state, the first radiator 231 is used to generate a first resonance, and the resonant frequency band of the first resonance includes the satellite communication frequency band. Satellite communication includes at least one of the following communication services: satellite receiving and / or sending short messages (also known as short messages), satellite calling and / or answering telephone calls, and satellite data (e.g., Internet access).

[0196] In one embodiment, the satellite communication frequency band may include a portion of the frequency band in the Tiantong satellite system, specifically the transmitting frequency band (1980MHz-2010MHz) and receiving frequency band (2170MHz-2200MHz) within the Tiantong satellite system. In another embodiment, the satellite communication frequency band may include a portion of the frequency band in the BeiDou satellite system, specifically the transmitting frequency band (1610MHz-1626.5MHz) and receiving frequency band (2483.5MHz-2500MHz) within the BeiDou satellite system. In yet another embodiment, the satellite communication frequency band may include a portion of the frequency band in a low-Earth orbit (LEO) satellite system, specifically the transmitting frequency band (2500MHz-2520MHz) and receiving frequency band (2670MHz-2690MHz) within the LEO satellite system. Alternatively, it can be applied to other satellite communication systems, and this embodiment does not limit the scope of the application.

[0197] In one embodiment, when the antenna 200 operates in the Tiantong satellite system (the operating frequency band of the antenna 200 includes at least a portion of the frequency bands in the Tiantong satellite system), the foldable electronic device 100 can perform voice communication via the antenna 200. In one embodiment, when the antenna 200 operates in the BeiDou satellite system (the operating frequency band of the antenna 200 includes at least a portion of the frequency bands in the BeiDou satellite system), the foldable electronic device 100 can send or receive short messages and images via the antenna 200.

[0198] The first radiator 231, the first parasitic stub 241, and the first electronic element 261 are used to generate the antenna pattern. In one embodiment, when the foldable electronic device 100 is in the unfolded state, the beamwidth of the antenna 200 is related to the first parasitic stub 241.

[0199] According to an embodiment of this application, when the foldable electronic device 100 is in the unfolded state, since the first parasitic branch 241 is disposed on the second side 302, the direction of radiation generated by the first parasitic branch 241 is biased to the left of the first direction (the first direction is towards the side of the first parasitic branch 241). The first electronic component 261 can enhance the radiation generated by the first parasitic branch 241. The first direction is the direction from the bottom of the foldable electronic device 100 to the top of the foldable electronic device 100, for example, the z-direction. When the foldable electronic device 100 is in the unfolded state, the direction of radiation generated by the first radiator 231 is biased to the right of the first direction (the first direction is towards the side of the pivot 203). The first radiator 231 and the first parasitic branch 241 can generate strong radiation on both sides of the top (first direction) of the foldable electronic device 100, respectively, which can give the antenna 200 a wide beam characteristic.

[0200] It should be understood that when the foldable electronic device 100 is in the unfolded state, the first feeding circuit 230 feeds in an electrical signal, the first radiator 231 generates the main resonance, and the first parasitic stub 241 generates the first parasitic resonance. The main resonance and the first parasitic resonance together form the aforementioned first resonance (since the frequency difference between the resonance point of the first parasitic resonance and the resonance point of the main resonance is small, in the S-parameter diagram, the main resonance and the first parasitic resonance merge into one resonance). In one embodiment, the resonance point of the first parasitic resonance is located within the resonance frequency band of the main resonance. In one embodiment, the frequency difference between the resonance point frequency of the first parasitic resonance and the resonance point frequency of the main resonance is less than or equal to 100MHz. In one embodiment, the frequency difference between the resonance point frequency of the first parasitic resonance and the resonance point frequency of the main resonance is less than or equal to 50MHz. The resonance point frequency of the first parasitic resonance can be greater than, equal to, or less than the resonance point frequency of the main resonance.

[0201] Meanwhile, in this embodiment, the coupling between the first radiator 231 and the first parasitic stub 241 is weak, and it cannot effectively excite the first parasitic resonance. Therefore, a pit corresponding to the first parasitic resonance does not appear clearly in the S-parameter plot. However, since the first parasitic resonance is partially excited by current, a noticeable pit will appear in the efficiency curve (e.g., radiation efficiency or system efficiency). For example, if an efficiency pit appears at the first frequency point, then the first frequency point can be considered to correspond to the resonance point of the aforementioned first parasitic resonance. In one embodiment, the efficiency (e.g., radiation efficiency or system efficiency) reduction caused by the pit does not exceed 1.5 dB. In another embodiment, the efficiency (e.g., radiation efficiency or system efficiency) reduction caused by the pit does not exceed 1 dB.

[0202] When the foldable electronic device 100 is in the unfolded state, because the first parasitic stub 241 is located on the second side 302, the maximum radiation direction of the radiation pattern generated by the first parasitic resonance is biased towards the first side (the side where the virtual axis of the first radiator 231 is closer to the first parasitic stub 241). When the foldable electronic device 100 is in the unfolded state, because the main resonance is affected by the current on the floor 300, the maximum radiation direction of the radiation pattern generated by the main resonance is biased towards the second side (the side where the virtual axis of the first radiator 231 is farther from the first parasitic stub 241). Since the first parasitic resonance and the main resonance can generate radiation on both sides of the top of the foldable electronic device 100, the antenna 200 can have a wide beam characteristic. In one embodiment, the first parasitic resonance and the main resonance can generate strong radiation beams on both sides of the top (first direction) of the foldable electronic device 100. When the two beams are close together, they can be combined into a single radiation beam. Alternatively, when the two beams are offset to the sides in the first direction, the bandwidth of the radiation beam can be widened.

[0203] Wide beamwidth can be understood as the antenna 200 having a wide beam width, enabling the foldable electronic device 100 to maintain good communication characteristics within a range of a first angle (e.g., 50°) with respect to the first direction. For example, when a user is conducting satellite communication, the wide beamwidth of the antenna 200 ensures that the radiation pattern generated by the antenna 200 maintains good characteristics within the first angle. The communication satellite can move within the first angle without affecting the quality of satellite communication, and the user does not need to frequently change the posture of holding the foldable electronic device 100, effectively improving the user experience.

[0204] In one embodiment, the gain is greater than or equal to -6 dBic at an angle of 50° to the first direction (e.g., the z-direction). In another embodiment, the gain is greater than or equal to -6 dBic at an angle of 60° to the direction pointing towards the top of the foldable electronic device 100 (e.g., the z-direction).

[0205] Meanwhile, the main resonance is generated by the line DM mode described in the above embodiment. Since the current generated by the line DM mode is mainly generated by the first radiator 231, and the current is mainly concentrated on the first radiator 231, multiple current modes will not be generated on the ground 300, making it easy to determine the maximum radiation direction of the radiation pattern generated by the antenna 200.

[0206] Furthermore, in line CM mode, the transverse modes of the ground plane can be excited (accounting for more than the longitudinal modes), but the currents corresponding to the transverse modes on the ground plane will cancel each other out. Therefore, the system efficiency and radiation efficiency of line CM mode are relatively low. In contrast, in line DM mode, the antenna radiation is mainly generated by the radiator, and the system efficiency and radiation efficiency of line DM mode are better than those of line CM mode.

[0207] In one embodiment, when the foldable electronic device 100 is in the unfolded state and the antenna 200 is operating in the satellite communication band, the current (e.g., current intensity, current density) on the first side of the floor 300 (the side where the virtual axis of the first radiator 231 faces the first parasitic branch 241) is greater than the current on the second side of the floor 300 (the side where the virtual axis of the first radiator 231 is away from the first parasitic branch 241).

[0208] When the foldable electronic device 100 is in the unfolded state and the antenna 200 is operating in the satellite communication frequency band, the current (e.g., current intensity, current density) on the first side of the first radiator 231 (the side of the first radiator 231 whose virtual axis faces the first parasitic branch 241) is greater than the current on the second side of the first radiator 231 (the side of the first radiator 231 whose virtual axis faces away from the first parasitic branch 241).

[0209] It should be understood that the strong current on the floor facing the first parasitic stub 241 can better excite the first parasitic stub 241 to generate the first parasitic resonance, thereby improving the radiation characteristics of the radiation generated by the first parasitic resonance and enhancing the radiation characteristics of the antenna 200 on the left side of the first direction (the first direction facing the first parasitic stub 241).

[0210] Meanwhile, the current on the floor 300 described in this application embodiment can be understood as the current near the edge of the floor 300 close to the radiator / parasitic branch, for example, the current within 30mm of the edge.

[0211] In one embodiment, the first feed point 251 is located on the first side of the virtual axis of the first radiator 231, and the first connection point 221 is located on the second side of the virtual axis of the first radiator 231. When the first electronic component exhibits open-circuit characteristics or its equivalent inductance is greater than or equal to 5nH, the current on the first side of the floor 300 is greater than that on the second side of the floor 300, such as... Figure 10 As shown in (a) of the diagram.

[0212] In one embodiment, the equivalent inductance value of the first electronic component can be determined based on the frequency of the first resonance. When the resonant frequency of the first resonance is greater than or equal to 3 GHz, the equivalent inductance value of the first electronic component is greater than or equal to 20 nH. When the resonant frequency of the first resonance is greater than or equal to 2 GHz and less than 3 GHz, the equivalent inductance value of the first electronic component is greater than or equal to 10 nH. When the resonant frequency of the first resonance is greater than or equal to 1 GHz and less than 2 GHz, the equivalent inductance value of the first electronic component is greater than or equal to 5 nH.

[0213] In one embodiment, the first feed point 251 is located on a first side of the virtual axis of the first radiator 231, and the first connection point 221 is located on a second side of the virtual axis of the first radiator 231. When the first electronic component exhibits short-circuit characteristics or its equivalent capacitance is greater than or equal to 0.5 pF, the current on the first side of the floor 300 is less than that on the second side of the floor 300, such as... Figure 10 As shown in (b) of the diagram.

[0214] In one embodiment, the equivalent capacitance value of the first electronic component can be determined based on the frequency of the first resonance. When the resonant frequency of the first resonance is greater than or equal to 3 GHz, the equivalent capacitance value of the first electronic component is greater than or equal to 0.5 pF. When the resonant frequency of the first resonance is greater than or equal to 2 GHz and less than 3 GHz, the equivalent capacitance value of the first electronic component is greater than or equal to 2 pF. When the resonant frequency of the first resonance is greater than or equal to 1 GHz and less than 2 GHz, the equivalent capacitance value of the first electronic component is greater than or equal to 3 pF.

[0215] The open / short circuit characteristic of the first electronic component can be understood as an open / short circuit between the first connection point 221 and the ground plane 300. For example, the first electronic component is a switch, with its common port coupled to the first connection point 221 and its connection port coupled to the ground plane 300. When the common port and the connection port of the switch are not electrically connected, it exhibits an open circuit characteristic. When the common port and the connection port of the switch are electrically connected, it exhibits a short circuit characteristic.

[0216] Meanwhile, the first electronic component may include a switch and multiple electronic components. The first electronic component can be electrically connected to different connection ports through the common port of the switch, thereby giving the first electronic component different capacitance / inductance characteristics. This application does not limit this.

[0217] In one embodiment, when the first feed point 251 is located on the first side of the virtual axis of the first radiator 231 and the first connection point 221 is located on the second side of the virtual axis of the first radiator 231, the first electronic component exhibits open-circuit characteristics or an equivalent inductance value greater than or equal to 5nH. In another embodiment, when the first connection point 221 is located on the first side of the virtual axis of the first radiator 231 and the first feed point 251 is located on the second side of the virtual axis of the first radiator 231, the first electronic component exhibits short-circuit characteristics or an equivalent capacitance greater than or equal to 0.5pF.

[0218] It should be understood that, with reference to the above settings, when the antenna 200 generates the first resonance (the foldable electronic device 100 performs satellite communication), a stronger current is generated on the floor facing the side of the first parasitic branch 241, which better excites the first parasitic branch 241 to generate the first parasitic resonance, thereby improving the radiation characteristics of the radiation generated by the first parasitic resonance and enhancing the radiation characteristics of the antenna 200 on the first side.

[0219] In one embodiment, the first frame 210 further includes a ground point 204 between the first position 211 and the second position 212, and the first frame 210 is coupled to the ground floor 300 at the ground point 204. Figure 11 As shown. Grounding point 204 is located between the first feed point 251 and the first connection point 221. In one embodiment, grounding point 204 is located in the central region of the first radiator 231. The central region includes the center of the first radiator 231, and the lengths of the first radiators 231 on both sides of the center are the same. The central region of the first radiator 231 can be understood as the area within 5 mm of the center of the first radiator 231.

[0220] It should be understood that grounding point 204 facilitates the reuse of the conductive portion of the first frame 210 between the first position 211 and the second position 212. For example, when the foldable electronic device 100 is not operating in the satellite communication frequency band, the conductive portion of the first frame 210 between the first position 211 and the grounding point 204, and the conductive portion of the first frame 210 between the second position 212 and the grounding point 204, can respectively serve as radiators of different antennas to extend the operating frequency band of the foldable electronic device 100.

[0221] In one embodiment, grounding can be achieved at grounding point 204 using a grounding element. The width of the grounding element connected to the first frame 210 is greater than or equal to 1 mm and less than or equal to 8 mm.

[0222] It should be understood that the grounding point and / or connection point can be achieved through a metal spring or a connecting rib structure between the metal spring and the middle plate of the middle frame, and the embodiments of this application do not limit this.

[0223] In one embodiment, when a grounding point 204 is provided between the first position 211 and the second position 212, in order to achieve the same technical effect as in the above embodiments, it is necessary to adjust the characteristics of the first electronic component 261. In one embodiment, when the first feed point 251 is located on the first side of the virtual axis of the first radiator 231 (between the second position 212 and the grounding point 204), and the first connection point 221 is located on the second side of the virtual axis of the first radiator 231 (between the first position 211 and the grounding point 204), the equivalent capacitance value of the first electronic component is greater than or equal to 0.5pF and less than or equal to 1.2pF, so that there is a stronger current on the floor facing the side of the first parasitic stub 241, which better excites the first parasitic stub 241 to generate the first parasitic resonance, thereby improving the radiation characteristics of the radiation generated by the first parasitic resonance and enhancing the radiation characteristics of the antenna 200 on the first side.

[0224] In one embodiment, the distance (length of the first radiator 231) between the first feed point 251 and the adjacent end of the first radiator 231 (e.g., the second position 212) is less than or equal to one-third of the length of the first radiator 231. In another embodiment, the distance between the first feed point 251 and the adjacent end of the first radiator 231 is less than or equal to 5 mm.

[0225] In one embodiment, the distance (length of the first radiator 231) between the first connection point 221 and the adjacent end (e.g., the first position 211) of the first radiator 231 is less than or equal to one-third of the length of the first radiator 231. In another embodiment, the distance between the first connection point 221 and the adjacent end of the first radiator 231 is less than or equal to 5 mm.

[0226] It should be understood that moving the first feed point 251 toward one end of the first radiator 231 facilitates the miniaturization of the first radiator 231. Furthermore, moving the first connection point 221 toward one end of the first radiator 231 facilitates the adjustment of the current distribution on the floor 300, allowing for a wider current regulation range.

[0227] In one embodiment, the distance between the first radiator 231 and the first parasitic branch 241 can be greater than and equal to two-tenths of the first wavelength and less than or equal to half of the first wavelength, where the first wavelength is the vacuum wavelength corresponding to the first resonance (e.g., the resonance point, or the center frequency of the resonance band).

[0228] Correspondingly, the first radiator 231 can operate in half-wavelength mode, and the distance between the first radiator 231 and the first parasitic branch 241 can be greater than and equal to four-tenths of the length of the first border 210 between the distances of the first position 211 and the second position 212 and less than or equal to the length L1 of the first border 210 between the distances of the first position 211 and the second position 212.

[0229] It should be understood that when the distance between the first radiator 231 and the first parasitic stub 241 is within the aforementioned range, the wide beam characteristics of the antenna 200 are better improved. The distance between the first radiator 231 and the first parasitic stub 241 can be understood as the distance between the center (geometric center) of the first radiator 231 and the center of the first parasitic stub 241.

[0230] In one embodiment, the length L2 of the first parasitic branch 241 (the length of the first border 210 between the third position 213 and the fourth position 214) and the length L1 of the first radiator 231 (the length of the first border 210 between the first position 211 and the second position 212) satisfy: L1 40%≤L2≤L1 90%.

[0231] Figure 12 and Figure 13 yes Figure 9 The simulation results of the foldable electronic device 100 in its unfolded state are shown. Figure 12 yes Figure 9 Simulation results of the S-parameters of the antenna 200 in the foldable electronic device 100 shown. Figure 13 yes Figure 9 The simulation results show the system efficiency of the antenna 200 in the foldable electronic device 100.

[0232] like Figure 12 As shown, the antenna can resonate around 2 GHz, which corresponds to the first resonance described in the above embodiment.

[0233] like Figure 13 As shown, the antenna exhibits good radiation efficiency and system efficiency near 2 GHz. Furthermore, the pit generated near 2 GHz corresponds to the first parasitic resonance in the above embodiment.

[0234] It should be understood that if the antenna only generates the main resonance around 2 GHz through the first radiator, then the radiation efficiency curve will be a smooth curve, while Figure 13 The radiative efficiency curve shown has a dip near 2 GHz, indicating that there is a first parasitic resonance near 2 GHz, which causes the dip in radiative efficiency.

[0235] Figure 14 and Figure 15 yes Figure 9 The radiation pattern of antenna 200 in the foldable electronic device 100 at 2 GHz is shown. Figure 14 It is the radiation pattern of the antenna 200 when the first parasitic branch is not set and the foldable electronic device 100 is in the unfolded state. Figure 15 It is the radiation pattern of the antenna 200 when the first parasitic branch is set and the foldable electronic device 100 is in the unfolded state.

[0236] It should be understood that in the orientation diagram shown in this application embodiment, the vertical axis is the angle Theta (the direction pointing to the top of the foldable electronic device 100) with respect to the z-direction. (The angle between the x-axis and the z-axis), the horizontal axis is the angle Phi between the x-axis and the x-direction (the extension direction of the first side). (The angle between the x-axis and the x-axis in the xoy plane).

[0237] Here, the z-direction (Theta=0°, Phi=180°) is the first direction from the bottom of the foldable electronic device 100 to the top of the foldable electronic device 100, which is oriented towards the satellite during satellite communication. When the antenna pattern meets the gain requirement (e.g., -5.5dBic), a larger angle with the z-direction results in better wide-beam characteristics of the antenna. When the satellite moves within this angle range, the foldable electronic device 100 can still have good communication characteristics when stationary.

[0238] like Figure 14 As shown, without the first parasitic stub, when the foldable electronic device is in its unfolded state, the current on the floor affects the maximum radiation direction of the pattern generated by antenna 200, causing the maximum radiation direction to deviate from the top direction. For example, the maximum radiation direction shifts to the right of the first direction (Phi ≤ 180°). The pattern generated by the antenna produces a dip near Theta = 75° / 275°. With a gain greater than or equal to -5.5dBic, antenna 200 only meets communication requirements within Theta of 38°.

[0239] like Figure 15 As shown, a first parasitic stub is provided. When the foldable electronic device is in its unfolded state, the first parasitic resonance generated by the first parasitic stub 241 can produce radiation to the left of the first direction (Phi≥180°), which can combine with the radiation generated by the first radiator 231 to the right of the first direction (Phi≤180°) influenced by the current on the floor, so that the radiation pattern no longer has a dip. With a gain greater than or equal to -5.5dBic as the limit, the antenna 200 meets the communication requirements within a Theta of 60°, and the antenna 200 has wide beam characteristics.

[0240] Figure 16 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0241] like Figure 16 As shown, the antenna 200 may further include a second parasitic stub 242. The second parasitic stub 242 is a conductive portion of the first frame 210 between the second position 212 and the third position 213. At least a portion of the second parasitic stub 242 is spaced apart from the ground 300. In one embodiment, the first end of the second parasitic stub 242 is an open end and the second end is a grounded end.

[0242] It should be understood that Figure 16 The antenna 200 shown is Figure 9 The difference in the antenna 200 shown is only in the second parasitic stub 242. Figure 9In the antenna 200 shown, both ends of the conductive portion between the second position 212 and the third position 213 are grounded, and resonance cannot be generated by the coupling energy from the first radiator 231. However... Figure 16 In the antenna 200 shown, the conductive portion of the first frame 210 between the second position 212 and the third position 213, near the first radiator 231, is an open end, which can serve as a second parasitic stub 242. When the foldable electronic device 100 is in the unfolded state, the second parasitic stub 242 can be used to draw current to the first parasitic stub 241, enhance the radiation characteristics of the first parasitic stub 241, and adjust the intensity of the radiation generated by the first parasitic stub 241 deflected to the left in the first direction, thereby adjusting the wide beam characteristics of the antenna 200.

[0243] In one embodiment, the first end of the second parasitic branch 242 is opposite to the first end of the first radiator 231 through a second insulating gap and does not contact each other. The first end of the second parasitic branch 242 may also include a second connection point 222. The antenna 200 may also include a second electronic component 262. The second electronic component 262 is coupled between the second connection point 222 and the ground 300.

[0244] It should be understood that the second electronic component 262 can be used to adjust the coupling amount between the second parasitic branch 242 and the first radiator 231, adjust the current flowing to the first parasitic branch 241, thereby adjusting the intensity of the radiation generated by the first parasitic branch 241 deflected to the left of the first direction (the first direction is toward the side of the first parasitic branch 241).

[0245] In one embodiment, the second parasitic stub 242 can be used to generate a second parasitic resonance. The resonant frequency of the second parasitic resonance is greater than the resonant frequency of the first resonance. In one embodiment, the frequency difference between the resonant frequency of the second parasitic resonance and the resonant frequency of the first resonance is greater than or equal to 200 MHz.

[0246] It should be understood that when the resonant point of the second parasitic resonance is located in the resonant frequency band of the first resonance, it will cause a dip in the radiation efficiency within the resonant frequency band of the first resonance, reducing the radiation characteristics of the antenna 200.

[0247] In one embodiment, the length L3 of the second parasitic branch 242 (the length of the first border 210 between the second position 212 and the third position 213) and the length L1 of the first radiator 231 (the length of the first border 210 between the first position 211 and the second position 212) satisfy: L1 40%≤L3≤L1 90%.

[0248] For the sake of brevity, Figure 16 The antenna 200 shown is Figure 9 The similar parts of the antenna 200 shown will not be described in detail. For example, similar parts include: the position of the first radiator 231, the position of the first parasitic branch 241, and the relative positions between the first radiator 231 and the first parasitic branch 241; the frequency band of satellite communication; the first resonance generated by the first radiator 231 and the first parasitic branch 241; the positions of the first feed point 251 and the first connection point 221; and so on.

[0249] Figure 17 yes Figure 16 The radiation pattern of antenna 200 at 2 GHz in the foldable electronic device 100 shown.

[0250] Wherein, the z direction (Theta=0°, Phi=180°) is the first direction from the bottom of the foldable electronic device 100 to the top of the foldable electronic device 100.

[0251] like Figure 17 As shown, compared to Figure 15 The simulation results shown are without the second parasitic branch. With the second parasitic branch, in the unfolded state of the foldable electronic device, the second parasitic branch 242 enhances the radiation characteristics of the first parasitic branch 241, causing the radiation generated by the first parasitic branch 241 to be deflected to the left in the first direction (e.g., Figure 17 The intensity increases in the region (180°≤Phi≤360°) shown in the radiation pattern.

[0252] It should be understood that the second electronic component can be used to adjust the coupling between the second parasitic stub and the first radiator, and to adjust the current flowing to the first parasitic stub, thereby changing the intensity of the radiation generated by the first parasitic stub deflected to the left in the first direction, thus determining the wide beam characteristics of the antenna 200.

[0253] Figure 18 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0254] like Figure 18 As shown, the first frame 210 also includes a fifth position 215. The first position 211 is located between the second position 212 and the fifth position 215. The first frame 210 is coupled to the floor 300 at the fifth position 215.

[0255] The antenna 200 may further include a third parasitic stub 243. The third parasitic stub 243 is a conductive portion of the first frame 210 between the first position 211 and the fifth position 215. At least a portion of the third parasitic stub 243 is spaced apart from the ground 300. In one embodiment, the first end of the third parasitic stub 243 is a grounded end and the second end is an open end.

[0256] The third parasitic stub 243 is used to generate a third parasitic resonance, and the first and third parasitic resonances together support the satellite communication frequency band. In one embodiment, the resonant frequency band of the first resonance may include the transmission frequency band in satellite communication, and the resonant frequency band of the third parasitic resonance may include the reception frequency band in satellite communication.

[0257] It should be understood that Figure 18 The antenna 200 shown is Figure 9 The difference in antenna 200 shown is only in the third parasitic stub 243. Figure 9 In the antenna 200 shown, the third parasitic stub 243 is not provided; the first resonance is generated solely by the first radiator 231 and the first parasitic stub. However... Figure 18 In the antenna 200 shown, the conductive portion of the first frame 210 between the first position 211 and the fifth position 215 serves as a third parasitic stub 243. The third parasitic stub 243 can be used to generate a third parasitic resonance to extend the operating frequency band of the antenna 200.

[0258] In one embodiment, the length L4 of the third parasitic branch 243 (the length of the first border 210 between the first position 211 and the fifth position 215) and the length L1 of the first radiator 231 (the length of the first border 210 between the first position 211 and the second position 212) satisfy: L1 40%≤L4≤L1 90%.

[0259] For the sake of brevity, Figure 18 The antenna 200 shown is Figure 9 , Figure 16 The similar parts of the antenna 200 shown will not be described in detail. For example, similar parts include: the position of the first radiator 231, the position of the first parasitic branch 241, and the relative positions between the first radiator 231 and the first parasitic branch 241; the frequency band of satellite communication; the first resonance generated by the first radiator 231 and the first parasitic branch 241; the positions of the first feed point 251 and the first connection point 221; and so on.

[0260] Figure 19 yes Figure 18 The simulation results of the S-parameters of the antenna 200 of the foldable electronic device 100 in the unfolded state are shown.

[0261] like Figure 19 As shown, the antenna can resonate around 2 GHz and 2.4 GHz.

[0262] The resonance generated near 2 GHz can correspond to the first resonance described in the above embodiments, and the resonance generated near 2.4 GHz can correspond to the third parasitic resonance described in the above embodiments.

[0263] Figures 20 to 22 yes Figure 18 The radiation pattern of the antenna 200 when the foldable electronic device 100 is in the unfolded state is shown. Figure 20 yes Figure 18 The radiation pattern of antenna 200 at 2 GHz in the foldable electronic device 100 shown. Figure 21 yes Figure 18 The radiation pattern of antenna 200 at 2.1 GHz in the foldable electronic device 100 shown. Figure 22 yes Figure 18 The radiation pattern of antenna 200 at 2.2 GHz in the foldable electronic device 100 shown.

[0264] Wherein, the z direction (Theta=0°, Phi=180°) is the first direction from the bottom of the foldable electronic device 100 to the top of the foldable electronic device 100.

[0265] like Figures 20 to 22 As shown, when the foldable electronic device is in its unfolded state, with a gain greater than or equal to -6dBic, the antenna 200 meets the communication requirements within a Theta of 60°, and the antenna 200 has a wide beam characteristic.

[0266] It should be understood that the first parasitic resonance generated by the first parasitic stub 241 is located near the first resonance (around 2 GHz), but it can also generate radiation to the left of the first direction (Phi≥180°) at 2.1 GHz and 2.2 GHz, so that the radiation pattern no longer has a dimple, and the antenna 200 has a wide beam characteristics in a wider frequency band.

[0267] Figure 23 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0268] like Figure 23 As shown, the third side 303 of the second frame 220 includes a sixth position 216 and a seventh position 217. The second frame 220 is coupled to the floor 300 at the sixth position 216. The second frame 220 has a fourth insulating gap at the seventh position 217. When the foldable electronic device 100 is in the unfolded state, the first side 301 and the third side 303 are the top or bottom sides of the foldable electronic device 100.

[0269] It should be understood that, for the sake of brevity, this application embodiment only uses the first side 301 and the third side 303 as examples of the top edge of the foldable electronic device 100 for illustration.

[0270] In one embodiment, the foldable electronic device 100 is in an unfolded state, with the sixth position 216 located between the first position 211 and the seventh position 217.

[0271] It should be understood that, for the sake of brevity, this embodiment of the application only uses the example of the sixth position 216 being located between the first position 211 and the seventh position 217 for illustration. In actual production or design, the seventh position 217 is located between the first position 211 and the sixth position 216.

[0272] The antenna 200 may further include a fourth parasitic stub 244. The fourth parasitic stub 244 is a conductive portion of the second frame 220 between the sixth position 216 and the seventh position 217. At least a portion of the fourth parasitic stub 244 is spaced apart from the ground 300. In one embodiment, a first end of the fourth parasitic stub 244 is a grounded end and a second end is an open end.

[0273] It should be understood that Figure 23 The antenna 200 shown is Figure 9 The difference in antenna 200 shown is only in the fourth parasitic stub 244. Figure 9 In the antenna 200 shown, no parasitic branches are provided on the second frame 220 of the second housing 202. However... Figure 23 In the antenna 200 shown, the conductive portion of the second frame 220 between the sixth position 216 and the seventh position 217 serves as the fourth parasitic stub 244. When the foldable electronic device 100 is in the unfolded state, the fourth parasitic stub 244 is used to reduce the influence of the current on the floor 300 on the main resonance of the first radiator 231, thereby adjusting the intensity of the radiation generated by the main resonance to the right of the first direction (the first direction is toward the side of the rotation axis 203).

[0274] In one embodiment, the fourth parasitic stub 244 can be used to generate a fourth parasitic resonance.

[0275] It should be understood that when the fourth parasitic resonance approaches the first resonance, the intensity of the radiation generated by the main resonance is reduced, deflected to the right side of the first direction (towards the rotating shaft 203). By adjusting the frequency difference between the fourth parasitic resonance and the first resonance, the radiation pattern generated by the antenna 200 on the right side of the first direction (towards the rotating shaft 203) can have different characteristics, thereby flexibly adjusting the intensity of the radiation pattern on the right side of the first direction (towards the rotating shaft 203) to achieve the wide beam characteristics of the antenna 200.

[0276] For the sake of brevity, Figure 23 The antenna 200 shown is Figure 9 , Figure 16 , Figure 18The similar parts of the antenna 200 shown will not be described in detail. For example, similar parts include: the position of the first radiator 231, the position of the first parasitic branch 241, and the relative positions between the first radiator 231 and the first parasitic branch 241; the frequency band of satellite communication; the first resonance generated by the first radiator 231 and the first parasitic branch 241; the positions of the first feed point 251 and the first connection point 221; and so on.

[0277] Figure 24 yes Figure 23 The radiation pattern of antenna 200 at 2 GHz in the foldable electronic device 100 shown.

[0278] Wherein, the z direction (Theta=0°, Phi=180°) is the first direction from the bottom of the foldable electronic device 100 to the top of the foldable electronic device 100.

[0279] like Figure 24 As shown, a fourth parasitic branch 244 is provided. When the foldable electronic device is in the unfolded state, the fourth parasitic branch 244 can suppress the current (lateral traveling wave) on the floor of one side of the second housing, reducing the influence of the current on the main resonance of the first radiator 231, thereby preventing the radiation generated by the main resonance from significantly shifting to the right in the first direction (e.g., Figure 24 The region shown in the direction diagram (0°≤Phi≤180°) is offset.

[0280] Since the radiation generated by the main resonance does not shift significantly to the right in the first direction, when the foldable electronic device is in its unfolded state, the antenna 200 is positioned to the right in the first direction (e.g., Figure 24 The radiation intensity in the region (180°≤Phi≤360°) shown in the radiation pattern increases. Therefore, the radiation characteristics of the antenna 200 on the right side of the first direction (the side of the first direction toward the rotation axis 203) can be adjusted by the fourth parasitic stub 244, thereby giving the antenna 200 a wide beam characteristic.

[0281] The second parasitic segment 242 enhances the radiation characteristics of the first parasitic segment 241, causing the radiation generated by the first parasitic segment 241 to be deflected to the left in the first direction (e.g., Figure 24 The intensity increases in the region (180°≤Phi≤360°) shown in the radiation pattern.

[0282] It should be understood that the second electronic component can be used to adjust the coupling between the second parasitic stub and the first radiator, and to adjust the current flowing to the first parasitic stub, thereby changing the intensity of the radiation generated by the first parasitic stub deflected to the left in the first direction, thus determining the wide beam characteristics of the antenna 200.

[0283] Figure 25This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0284] like Figure 25 As shown, antenna 200 also includes a third electronic component 263. The fourth parasitic stub 244 includes a third connection point 223 and a fourth connection point 224. The third electronic component 263 is coupled between the third connection point 223 and the fourth connection point 224. The fourth parasitic stub 244 has a fifth insulating gap between the third connection point 223 and the fourth connection point 224.

[0285] It should be understood that the fifth insulating slot created on the fourth parasitic stub 244 can be considered as an equivalent capacitance (e.g., distributed capacitance) on the fourth parasitic stub 244, which allows the fourth parasitic stub 244 to form a metamaterial structure. The fourth parasitic stub 244 with this metamaterial structure can increase the radiation aperture. After creating the fifth insulating slot, the electric field is more dispersed, and the dielectric loss near the conductor is reduced, thus effectively improving the system efficiency and radiation efficiency of the antenna 200. By using the third electronic component 263 coupled between the third connection point 223 and the fourth connection point 224, the equivalent capacitance value of the fifth insulating slot can be adjusted, thereby adjusting the radiation characteristics of the antenna 200 (e.g., the resonant frequency of the fourth parasitic resonance generated by the fourth parasitic stub 244).

[0286] It should be understood that Figure 25 The antenna 200 shown is Figure 23 The antenna 200 shown differs only in that a fifth insulating gap is opened between the third connection point 223 and the fourth connection point 224, and a third electronic component 263 is connected in series. Figure 23 In the antenna 200 shown, the fourth parasitic stub 244 all have an IFA-like structure with one end grounded and the other open, and all fourth parasitic stubs 244 operate in quarter-wavelength mode. While... Figure 25 In the antenna 200 shown, the fourth parasitic stub 244 forms a metamaterial structure, and the length of the fourth parasitic stub 244 is greater than... Figure 23 The length of the fourth parasitic branch 244 shown.

[0287] In one embodiment, the fourth parasitic stub 244 includes a fifth connection point. The antenna 200 also includes a fourth electronic component coupled between the fifth connection point and the ground plane 300.

[0288] It should be understood that the fourth parasitic stub 244 is electrically connected to the ground 300 at the fifth connection point via a fourth electronic component. This allows the current in the fourth parasitic stub 244 to be shunted in the region near the fifth connection point when the fourth parasitic stub 244 generates a fourth parasitic resonance. This shunt in the region near the fifth connection point disperses the current density on the fourth parasitic stub 244. In one embodiment, the more dispersed current distribution in the fourth parasitic stub 244 reduces its conductor loss. In another embodiment, the more dispersed current distribution in the fourth parasitic stub 244 increases its radiating aperture. The reduced conductor loss of the fourth parasitic stub 244, coupled with the increased radiating aperture of the antenna 200, improves both the system efficiency and radiation efficiency of the antenna.

[0289] In one embodiment, in Figure 23 In the antenna 200 shown, the electrical length of the fourth parasitic stub 244 is one-quarter of the first wavelength, which can be the wavelength corresponding to the fourth parasitic resonance generated by the fourth parasitic stub 244. In one embodiment, in Figure 25 In the antenna 200 shown, the electrical length of the fourth parasitic stub 244 is greater than three-eighths of the first wavelength. Figure 25 In the antenna 200 shown, the parasitic resonance of the fourth parasitic stub 244 can correspond to a quarter-wavelength mode. Through the fifth insulating gap, the electrical length of the fourth parasitic stub 244 can be greater than three-eighths of the first wavelength. The current on the fourth parasitic stub 244 is in the same direction (e.g., no reversal), and the electric field between the fourth parasitic stub 244 and ground does not reverse. The electrical length of the fourth parasitic stub 244 increases from one-quarter of the first wavelength to more than three-eighths of the first wavelength, but it still operates in a quarter-wavelength mode. In this case, the current density on the fourth parasitic stub 244 is dispersed, and the electric field density between the fourth parasitic stub 244 and the ground 300 is reduced, thereby reducing conductor and dielectric losses caused by the fourth parasitic stub 244 and the conductors and dielectrics surrounding it, thus improving the radiation characteristics of the antenna 200. The increased radiating aperture of the fourth parasitic stub 244 effectively improves the system efficiency and radiation efficiency of the antenna 200.

[0290] The first wavelength can be understood as the vacuum wavelength corresponding to the resonant point of the parasitic resonance, or it can be understood as the vacuum wavelength corresponding to the center frequency of the resonant frequency band formed by the parasitic resonance. Since there is a certain correspondence between the vacuum wavelength and the dielectric wavelength, the above ratio can be converted to the dielectric wavelength, which will not be elaborated further in this application.

[0291] In one embodiment, the third electronic component 263 may include an inductor or an electronic component equivalent to a capacitor.

[0292] In one embodiment, the equivalent inductance of the third electronic component 263 may be less than or equal to 10nH.

[0293] In one embodiment, the fourth electronic component may include a capacitor or an electronic component equivalent to a capacitor.

[0294] In one embodiment, the equivalent capacitance of the fourth electronic component can be less than or equal to a first threshold. The first threshold can be designed based on the resonant frequency of the parasitic resonance generated by the fourth parasitic stub 244. When the resonant frequency of the parasitic resonance is less than or equal to 1 GHz, the first threshold is 10 pF. When the resonant frequency of the parasitic resonance is greater than 1 GHz, the first threshold is 2 pF.

[0295] It should be understood that by designing the equivalent inductance of the third electronic component 263 and the equivalent capacitance of the fourth electronic component according to the frequency of the resonant point of different parasitic resonances, the current distribution on the fourth parasitic stub 244 can be more dispersed, conductor losses can be reduced, and the radiation aperture of the fourth parasitic stub 244 can be increased, thereby improving the radiation characteristics of the antenna (e.g., radiation efficiency and system efficiency).

[0296] In one embodiment, the distance between the third connection point 223 and / or the fourth connection point 224 and the fifth insulating gap is less than or equal to 5 mm.

[0297] The distance between the third connection point 223 and / or the fourth connection point 224 and the fifth insulating gap can be understood as the minimum distance between the conductors on both sides of the fifth insulating gap and the third connection point 223 and / or the fourth connection point 224 (the length of the fourth parasitic branch 244 between the third connection point 223 and / or the fourth connection point 224 and the fifth insulating gap). When the third electronic component 263 is electrically connected to the third connection point 223 and / or the fourth connection point 224 via a connector (e.g., a metal spring), the distance to the fifth insulating gap can be understood as the minimum distance between the center of the part of the connector that contacts the connection point and the conductors on both sides of the fifth insulating gap.

[0298] In one embodiment, the fifth connection point coincides with the third connection point 223 and / or the fourth connection point 224.

[0299] In one embodiment, when the length of the fourth parasitic stub 244 between the fifth connection point and the third connection point 223 and / or the fourth connection point 224 is less than or equal to 5 mm, the radiation aperture of the fourth parasitic stub 244 can be better adjusted, thereby improving the radiation characteristics of the antenna 200.

[0300] For the sake of brevity, Figure 25 The antenna 200 shown is Figure 23The similar parts of the antenna 200 shown will not be described in detail. For example, similar parts include: the position of the fourth parasitic stub 244, the position of the first radiator 231, the position of the first parasitic stub 241, and the relative positions between the first radiator 231 and the first parasitic stub 241; the frequency band of satellite communication; the first resonance generated by the first radiator 231 and the first parasitic stub 241; the positions of the first feed point 251 and the first connection point 221; and so on.

[0301] Figure 26 yes Figure 25 The radiation pattern of antenna 200 at 2 GHz in the foldable electronic device 100 shown.

[0302] like Figure 26 As shown, the fourth parasitic branch 244, being a metamaterial structure, can still suppress the current (transverse traveling wave) on one side of the second shell floor, reducing the influence of the current on the main resonance of the first radiator 231, thereby preventing the radiation generated by the main resonance from significantly shifting to the right in the first direction (e.g., Figure 26 The region shown in the direction diagram (0°≤Phi≤180°) is offset.

[0303] Since the radiation generated by the main resonance does not shift significantly to the right in the first direction, when the foldable electronic device is in its unfolded state, the antenna 200 is on the left side of the first direction (e.g., Figure 24 The radiation intensity in the region (180°≤Phi≤360°) shown in the radiation pattern increases. Therefore, the radiation characteristics of the antenna 200 on the right side of the first direction can be adjusted by the fourth parasitic stub 244, thereby giving the antenna 200 a wide beam characteristic.

[0304] The second parasitic segment 242 enhances the radiation characteristics of the first parasitic segment 241, causing the direction of radiation generated by the first parasitic segment 241 to deflect to the left of the first direction (e.g., Figure 24 The intensity increases in the region (180°≤Phi≤360°) shown in the radiation pattern.

[0305] It should be understood that the second electronic component can be used to adjust the coupling between the second parasitic stub and the first radiator, and to adjust the current flowing to the first parasitic stub, thereby changing the intensity of the radiation generated by the first parasitic stub deflected to the left in the first direction, thus determining the wide beam characteristics of the antenna 200.

[0306] Figure 27 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0307] like Figure 27As shown, the second frame 220 has a fifth insulating gap and a fourth insulating gap at the sixth position 216 and the seventh position 217. When the foldable electronic device 100 is in the unfolded state, the first side 301 and the third side 303 are the top or bottom sides of the foldable electronic device 100.

[0308] The antenna 200 may further include a fourth parasitic stub 244. The fourth parasitic stub 244 is a conductive portion of the second frame 220 between the sixth position 216 and the seventh position 217. At least a portion of the fourth parasitic stub 244 is spaced apart from the floor 300. In one embodiment, the first and second ends of the fourth parasitic stub 244 are open ends.

[0309] In one embodiment, the fourth parasitic stub 244 can be used to generate a fourth parasitic resonance.

[0310] It should be understood that when the fourth parasitic resonance approaches the first resonance, the intensity of the radiation generated by the main resonance is reduced, deflected to the right side of the first direction (towards the rotating shaft 203). By adjusting the frequency difference between the fourth parasitic resonance and the first resonance, the radiation pattern generated by the antenna 200 on the right side of the first direction (towards the rotating shaft 203) can have different characteristics, thereby flexibly adjusting the intensity of the radiation pattern on the right side of the first direction (towards the rotating shaft 203) to achieve the wide beam characteristics of the antenna 200.

[0311] It should be understood that Figure 27 The antenna 200 shown is Figure 23 , Figure 25 The difference in the antenna 200 shown is only that the second frame 220 has a fifth insulating slot at the sixth position 216. Figure 23 , Figure 25 In the antenna 200 shown, the fourth parasitic stub 244 all have a structure with one end grounded and the other end open, and all fourth parasitic stubs 244 operate in quarter-wavelength mode. And... Figure 27 In the antenna 200 shown, the first and second ends of the fourth parasitic stub 244 are open ends, which can form a structure similar to a dipole antenna. The fourth parasitic stub 244 operates in half-wavelength mode.

[0312] For the sake of brevity, Figure 27 The antenna 200 shown is Figure 23 , Figure 25The similar parts of the antenna 200 shown will not be described in detail. For example, similar parts include: the position of the fourth parasitic stub 244, the position of the first radiator 231, the position of the first parasitic stub 241, and the relative positions between the first radiator 231 and the first parasitic stub 241; the frequency band of satellite communication; the first resonance generated by the first radiator 231 and the first parasitic stub 241; the positions of the first feed point 251 and the first connection point 221; and so on.

[0313] Figure 28 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0314] like Figure 28 As shown, the second frame 220 includes a sixth position 216, a seventh position 217, an eighth position 218, and a ninth position 219 arranged sequentially. The second frame 220 has a fourth insulating gap, a fifth insulating gap, and a sixth insulating gap respectively at the sixth position 216, the seventh position 217, and the ninth position 219. The second frame 220 is coupled to the floor 300 at the eighth position 218.

[0315] Specifically, positions 216 and 217 are located on the third side 303 of the second border 220, and positions 218 and 219 are located on the fourth side 304. The third side 303 and the fourth side 304 intersect at an angle. In one embodiment, the length of the third side 303 is less than the length of the fourth side 304.

[0316] In one embodiment, when the foldable electronic device 100 is in the unfolded state, the first side 301 and the third side 303 are the top or bottom sides of the foldable electronic device 100.

[0317] It should be understood that, for the sake of brevity, this application embodiment only uses the first side 301 and the third side 303 as examples of the top edge of the foldable electronic device 100 for illustration.

[0318] The foldable electronic device 100 may also include an antenna 400. The antenna 400 includes a second radiator 232, a fifth parasitic branch 245, a second feed circuit 240, and a fifth electronic component 265.

[0319] In this embodiment, the second radiator 232 is the conductive portion of the second frame 220 between the sixth position 216 and the seventh position 217. The fifth parasitic branch 245 is the conductive portion of the second frame 220 between the eighth position 218 and the ninth position 219. In one embodiment, the first and second ends of the second radiator 232 are open ends. The first end of the fifth parasitic branch 245 is a grounded end, and the second end is an open end.

[0320] The second radiator 232 includes a second feed point 252 and a sixth connection point 226. A second feed circuit 240 is coupled to the second feed point 252. A fifth electronic component 265 is coupled between the sixth connection point 226 and the floor 300. The second feed point 252 and the sixth connection point 226 are located on opposite sides of a virtual axis of the second radiator 232, and the second radiator 232 on both sides of the virtual axis has the same length.

[0321] The operating frequency band of antenna 400 may include the satellite communication frequency band. When the foldable electronic device 100 is in the unfolded state, the second radiator 232 and the fifth parasitic branch 245 are used to jointly generate a second resonance, the resonant frequency band of which includes the satellite communication frequency band.

[0322] It should be understood that Figure 28 The antenna 200 shown is Figure 9 , Figure 16 , Figure 18 The difference between antenna 200 and antenna 400 is only that antenna 400 is shown. Figure 28 In the foldable electronic device 100 shown, the antenna 400 can be Figure 9 , Figure 16 , Figure 18 Any one of the antennas 200 shown.

[0323] at the same time, Figure 28 Antennas 200 and 400 shown may have the same antenna structure or different antenna structures. This application embodiment does not impose any limitations on this, and the specific structure can be determined based on actual production or design. For the sake of brevity, ... Figure 28 In the foldable electronic device 100 shown, only antennas 200 and 400 are... Figure 9 The antenna 200 shown is used as an example for explanation.

[0324] According to embodiments of this application, both antenna 200 and antenna 400 can operate in the satellite communication frequency band. According to the above embodiments, both antenna 200 and antenna 400 have wide beam characteristics; therefore, the radiation patterns generated by antenna 200 and antenna 400 can be superimposed, enabling the foldable electronic device 100 to have better satellite communication performance.

[0325] In one embodiment, when the foldable electronic device 100 is in a folded state, the first insulating gap in the first frame 210 is aligned with the fourth insulating gap in the second frame 220, and / or the second insulating gap in the first frame 210 is aligned with the fifth gap in the second frame 220, and / or the third insulating gap in the first frame 210 is aligned with the sixth insulating gap in the second frame 220, so as to improve the aesthetics of the foldable electronic device 100.

[0326] It should be understood that, in the embodiments of this application, alignment can be understood as two gaps at least partially overlapping in the thickness direction of the foldable electronic device 100.

[0327] In one embodiment, the foldable electronic device 100 is in a folded state, and the first radiator 231 and the second radiator 232 at least partially overlap in the thickness direction of the foldable electronic device, and / or the first parasitic branch 241 and the fifth parasitic branch 245 at least partially overlap in the thickness direction of the foldable electronic device, so as to improve the aesthetics of the foldable electronic device 100.

[0328] Figure 29 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0329] It should be understood that in the above embodiments, the electronic device 100 is described as a foldable electronic device. In actual production or design, the technical solutions described in the embodiments of this application can also be used for other types of electronic devices 100, including those with larger floor sizes. Figure 29 and the electronic device 100 shown in subsequent embodiments and Figures 9 to 28 The only difference between the electronic devices 100 shown is their form; similar parts will not be described in detail here. For example, similar parts include: parameters related to the insulating gaps opened on the frame; satellite communication frequency band; efficiency dips caused by parasitic resonances generated by parasitic branches within the operating frequency band; and so on.

[0330] like Figure 29 As shown, the electronic device 100 may include a first frame 210, at least a portion of which is spaced apart from the floor 300.

[0331] The first border 210 includes a first side 301 and a second side 302 that intersect at an angle.

[0332] The first side 301 includes a first position 211 and a second position 212. The first frame 210 has a first insulating gap and a second insulating gap at the first position 211 and the second position 212, respectively.

[0333] The second side 302 includes a third position 213 and a fourth position 214. The first frame 210 is coupled to the floor 300 at the third position 213. The first frame 210 has a third insulating gap at the fourth position 214.

[0334] The electronic device 100 may also include an antenna 200. The antenna 200 includes: a first radiator 231, a first parasitic branch 241, a second parasitic branch 242, a first feed circuit 230, a first switch 271, a second switch 272, a first switch branch 281, a second switch branch 282, a third switch branch 283, and a fourth switch branch 284.

[0335] The first radiator 231 is the conductive portion of the first frame 210 between the first position 211 and the second position 212. In one embodiment, at least a portion of the first radiator 231 is spaced apart from the floor 300. In one embodiment, the first and second ends of the first radiator 231 are open ends.

[0336] The first parasitic branch 241 is a conductive portion of the first frame 210 between the third position 213 and the fourth position 214. In one embodiment, at least a portion of the first parasitic branch 241 is spaced apart from the floor 300. In one embodiment, a first end of the first parasitic branch 241 is a grounded end and a second end is an open end.

[0337] Antenna 200 also includes a first feed circuit 230. First radiator 231 includes a first feed point 251. First feed circuit 230 is coupled to first feed point 251.

[0338] In one embodiment, the length L0 of the first side 301 and the length L1 of the first radiator 231 satisfy: 2 L1 ≤ L0. In one embodiment, the length L0 of the first side 301 and the length L1 of the first radiator 231 satisfy: 2.5 L1 ≤ L0. In one embodiment, the length L0 of the first side 301 and the length L1 of the first radiator 231 satisfy: 3 L1≤L0.

[0339] It should be understood that the length L0 of the first side 301 can be understood as the dimension of the electronic device 100 in the extension direction (e.g., the x-direction) of the first side 301. The proportional relationship between the length L0 of the first side 301 and the length L1 of the first radiator 231 can also be understood as the proportional relationship between the dimension L0' of the floor 300 in the extension direction (e.g., the x-direction) of the first side 301 and the length L1 of the first radiator 231. For example, 2 L1≤L0', 2.5 L1≤L0',3 L1≤L0'.

[0340] In one embodiment, the distance L1' between the second position 212 and the second side 302 and the length L1 of the first radiator 231 satisfy: L1' ≤ L1 0.5.

[0341] It should be understood that the distance L1' between the second position 212 and the second side 302 can be understood as the distance between the second position 212 and the second side 302 along the extension direction of the first side 301 (e.g., the x-direction). For the sake of brevity, the distances between the second position and the side mentioned in the embodiments of this application can all be understood accordingly.

[0342] The first radiator 231 is used to generate the first resonance. The resonant frequency band of the first resonance includes the satellite communication frequency band.

[0343] In one embodiment, the resonant frequency band of the first resonance may all include the transmitting frequency band of the satellite communication frequency band. For example, one of the transmitting frequency bands (1980MHz-2010MHz) in the Tiantong satellite system, the transmitting frequency band (1610MHz-1626.5MHz) in the Beidou satellite system, and the transmitting frequency band (2500MHz-2520MHz) in the low Earth orbit satellite system. In another embodiment, the resonant frequency band of the first resonance may all include the receiving frequency band of the satellite communication frequency band. For example, one of the receiving frequency bands (2170MHz-2200MHz) in the Tiantong satellite system, the receiving frequency band (2483.5MHz-2500MHz) in the Beidou satellite system, and the receiving frequency band (2670MHz-2690MHz) in the low Earth orbit satellite system.

[0344] The first radiator 231 and the first parasitic branch 241 are used to generate the radiation pattern of the antenna 200.

[0345] According to an embodiment of this application, when the length of the first side 301 is relatively long (2... L1≤L0), in the first radiator 231 near the second side 302 (L1'≤L1) In the 0.5) configuration, the first parasitic stub 241 deflects the radiation pattern generated by the antenna 200 toward the first parasitic stub 241, thus preventing the radiation pattern generated by the antenna 200 from being affected by the floor 300. Since the radiation pattern generated by the antenna 200 is not affected by the floor 300, the maximum radiation direction of the radiation pattern generated by the antenna 200 will not have a large angular difference (e.g., less than or equal to 30°) with the top direction of the electronic device 100 (the direction perpendicular to the extension direction of the first side 301, e.g., the z-direction). Therefore, the communication satellite can always be located in an area where the antenna 200 has good radiation characteristics (e.g., the maximum radiation direction of the antenna's radiation pattern at least partially overlaps with the target radiation direction) to maintain alignment with the communication satellite, effectively improving the user experience.

[0346] In one embodiment, the second side 302 further includes a fifth position 215 and a sixth position 216. The first frame 210 is coupled to the floor 300 at the sixth position 216. The first frame 210 has a fourth insulating gap at the fifth position 215.

[0347] In one embodiment, the antenna 200 further includes a second parasitic stub 242. The first radiator 231, the first parasitic stub 241, and the second parasitic stub 242 can be used to generate the radiation pattern of the antenna 200.

[0348] The second parasitic branch 241 is the conductive portion of the first frame 210 between the fifth position 215 and the sixth position 216. At least a portion of the second parasitic branch 242 is spaced apart from the floor 300. In one embodiment, the first end of the second parasitic branch 242 is a grounded end and the second end is an open end.

[0349] It should be understood that the first parasitic branch 241 and the second parasitic branch 242 can adjust the radiation pattern generated by the antenna 200 so that the radiation pattern of the antenna 200 has a more flexible adjustment range.

[0350] In one embodiment, the antenna 200 further includes a first switch 271, a second switch 272, a first switch branch 281, a second switch branch 282, a third switch branch 283, and a fourth switch branch 284.

[0351] The first parasitic branch 241 includes a first connection point 221. The first switch branch 281 and the second switch branch 282 are coupled between the floor 300 and the first connection point 221 via the first switch 271.

[0352] It should be understood that the coupling connection of the first switch branch 281 and the second switch branch 282 between the floor 300 and the first connection point 221 via the first switch 271 can be interpreted as the coupling connection of the first switch branch 281 and the second switch branch 282 between the first switch 271 and the first connection point 221, or the coupling connection of the first switch branch 281 and the second switch branch 282 between the first switch 271 and the floor 300. For the sake of brevity, the coupling connection of the switch branches between the connection point and the floor 300 via switches in the embodiments of this application can all be understood accordingly, and will not be elaborated further.

[0353] In this application, "switch" can include one or more switching devices; "first connection point," "second connection point," and "third connection point," etc., can all include one or more connection points. In one embodiment, one switch branch can be coupled between the floor 300 and the parasitic branch through one switching device in the switch and one connection point in the connection point; another switch branch can be coupled between the floor 300 and the parasitic branch through another switching device in the switch and another connection point in the connection point. In the embodiments of this application, the switch is only used for switching to different switch branches coupled to the radiator, and its specific location and form are not limited.

[0354] In the embodiments of this application, the switch branch can be understood as the circuit between the switch and the connection point (e.g., the first connection point 221) or the ground 300, which can be switched to different switch branches by the switch, so that the equivalent capacitance, equivalent resistance or equivalent inductance coupled to the connection point are different.

[0355] In one embodiment, the switching branch may include one or more electronic components, which may be connected in series or in parallel to achieve different equivalent capacitance and / or equivalent inductance and / or equivalent resistance values. In another embodiment, the switching branch may also include a switch, which switches the equivalent capacitance and / or equivalent inductance and / or equivalent resistance values ​​of the switching branch in different states.

[0356] In one embodiment, the switch branch may not include electronic components. The switch branch can be used to determine the boundary conditions at the first connection point. For example, the switch branch may be in an open-circuit state when the switch common port is connected to the switch branch, meaning the first connection point 221 is open-circuit (not coupled to the ground plane 300 via a device). Alternatively, the switch branch may be in a short-circuit state when the switch common port is connected to the switch branch, meaning the first connection point 221 is short-circuit (electrically connected to the ground plane 300, without other electronic components). For the sake of brevity, ... Figure 29 In the electronic device 100 shown, only the switching branch including equivalent electronic components is used as an example for explanation, and will not be described in detail.

[0357] It should be understood that, for the sake of brevity, the switch branches described in the embodiments of this application can all be understood accordingly and will not be described in detail.

[0358] The second parasitic branch 242 includes a second connection point 222. The third switch branch 283 and the fourth switch branch 284 are coupled between the floor 300 and the second connection point 222 via the second switch 272.

[0359] The first radiator 231, the first parasitic branch 241, the second parasitic branch 242, the first switch branch 281, and the third switch branch 283 are used to generate the first resonance. The resonant frequency band of the first resonance includes the satellite communication frequency band.

[0360] The first radiator 231, the first parasitic branch 241, the second parasitic branch 242, the second switch branch 282, and the fourth switch branch 284 are used to generate the second resonance. The resonant frequency band of the second resonance includes the satellite communication frequency band.

[0361] In one embodiment, the resonant frequency band of the first resonance and the resonant frequency band of the second resonance may both include the transmitting frequency band of the satellite communication frequency band. For example, one of the transmitting frequency bands (1980MHz-2010MHz) in the Tiantong satellite system, the transmitting frequency band (1610MHz-1626.5MHz) in the Beidou satellite system, and the transmitting frequency band (2500MHz-2520MHz) in the low Earth orbit satellite system. In one embodiment, the resonant frequency band of the first resonance and the resonant frequency band of the second resonance may both include the receiving frequency band of the satellite communication frequency band. For example, one of the receiving frequency bands (2170MHz-2200MHz) in the Tiantong satellite system, the receiving frequency band (2483.5MHz-2500MHz) in the Beidou satellite system, and the receiving frequency band (2670MHz-2690MHz) in the low Earth orbit satellite system.

[0362] In one embodiment, the first radiator 231, the first parasitic branch 241, the second parasitic branch 242, the first switch branch 281, and the third switch branch 283 are used to generate a first radiation pattern. The first radiator 231, the first parasitic branch 241, the second parasitic branch 242, the second switch branch 282, and the fourth switch branch 284 are used to generate a second radiation pattern. The first and second radiation patterns are different.

[0363] The difference between the first and second radiation patterns can be understood as the difference in the maximum radiation direction of the first and second radiation patterns.

[0364] It should be understood that the maximum radiation direction described in the embodiments of this application can be understood in one embodiment as the direction in which the maximum gain in the radiation pattern generated by the antenna is oriented; in another embodiment, it can be understood as the direction in which the maximum gain in a continuous radiation region (within which the gain is greater than or equal to a threshold) in the radiation pattern generated by the antenna is oriented; and in yet another embodiment, it can be understood as the direction in which the maximum gain in a preset radiation region (e.g., the top region of an electronic device) in the radiation pattern generated by the antenna is oriented (e.g., the antenna has multiple maximum radiation directions, one towards the top and one towards the back cover; assuming the top is the main radiation region, the back cover direction may have a single angle exceeding the maximum gain of the main radiation region, but the maximum radiation direction described in the embodiments of this application only considers the direction in which the maximum gain in the main radiation region in the radiation pattern is oriented). All related descriptions in the embodiments of this application can be understood accordingly, and for the sake of brevity, they will not be repeated here.

[0365] It should be understood that, in the first radiator 231 near the second side 302 (L1'≤L1), In the case of setting 0.5), the first parasitic stub 241 and the second parasitic stub 242, coupled with different switching branches, can enable the antenna 200 to have different radiation patterns in the satellite communication frequency band. The electronic device 100 can switch the switching branch coupled with the parasitic stub according to the relative position of the communication satellite and the electronic device 100, so that the communication satellite is always located in the area where the antenna 200 has good radiation characteristics (for example, the maximum radiation direction of the radiation pattern generated by the antenna at least partially overlaps with the target radiation direction), so as to maintain the alignment with the communication satellite and effectively improve the user experience.

[0366] In one embodiment, when the first switch branch 281 is coupled to the first connection point 221 and the third switch branch 283 is coupled to the second connection point 222, an electrical signal is fed into the first feed circuit 230. The first radiator 231 is used to generate the first main resonance, the first parasitic stub 241 is used to generate the first parasitic resonance, and the second parasitic stub 242 does not generate parasitic resonance. The first main resonance and the first parasitic resonance together form the aforementioned first resonance (since the frequency difference between the resonance point of the first parasitic resonance and the resonance point of the first main resonance is small, in the S-parameter diagram, the first main resonance and the first parasitic resonance merge into one resonance).

[0367] It should be understood that the fact that the second parasitic stub 242 does not generate parasitic resonance can be interpreted as the third switching branch 283 being used to ensure that the parasitic resonance generated by the second parasitic stub 242 is located outside the resonant frequency band of the first main resonance. For example, the resonant frequency of the parasitic resonance generated by the second parasitic stub 242 is greater than or equal to the resonant frequency of the first main resonance by 300MHz. For the sake of brevity, in the embodiments of this application, the absence of parasitic resonance can be understood accordingly and will not be elaborated further.

[0368] In one embodiment, when the second switch branch 282 is coupled to the first connection point 221 and the fourth switch branch 284 is coupled to the second connection point 222, an electrical signal is fed into the first feed circuit 230. The first radiator 231 is used to generate the second main resonance, the first parasitic stub 241 does not generate parasitic resonance, and the second parasitic stub 242 is used to generate the second parasitic resonance. The second main resonance and the second parasitic resonance together form the aforementioned second resonance (since the frequency difference between the resonance point of the second parasitic resonance and the resonance point of the second main resonance is small, in the S-parameter diagram, the second main resonance and the second parasitic resonance merge into one resonance).

[0369] In one embodiment, at the resonant point of the first resonance, the current on the first radiator 231 and the current on the first parasitic branch 241 are in the same direction, such as... Figure 30 As shown.

[0370] It should be understood that when the current on the first radiator 231 and the current on the first parasitic stub 241 are in the same direction, the first parasitic stub 241 can cause the radiation pattern generated by the antenna 200 to deflect toward the side closer to the first parasitic stub 241.

[0371] In one embodiment, at the resonant point of the second resonance, the current on the first radiator 231 and the current on the second parasitic stub 242 are in opposite directions, such as... Figure 31 As shown.

[0372] It should be understood that when the current on the first radiator 231 and the current on the second parasitic stub 242 are opposite, the second parasitic stub 242 can deflect the radiation pattern generated by the antenna 200 toward the side away from the second parasitic stub 242.

[0373] In one embodiment, the distance between the third position 213 and the first side 301 is less than the distance between the fourth position 214 and the first side 301. The grounding end of the first parasitic branch 241 is close to the first side 301. The distance L2' between the third position 213 and the first side 301 and the length L2 of the first parasitic branch 241 satisfy: 0 ≤ L2' ≤ L2 2.5.

[0374] In one embodiment, the distance between the fifth position 215 and the first side 301 is less than the distance between the sixth position 216 and the first side 301. The open end of the second parasitic branch 242 is close to the first side 301. The distance L3' between the fifth position 215 and the first side 301 and the length L3 of the second parasitic branch 242 satisfy: L3 ≤ L3' ≤ L3 5.

[0375] It should be understood that in this embodiment, the description only takes the example of the grounding end of the first parasitic branch 241 being close to the first side 301 and the open end of the second parasitic branch 242 being close to the first side 301. In actual production or application, the grounding end of both the first parasitic branch 241 and the grounding end of both the second parasitic branch 242 can be close to the first side 301, or the open ends of both the first parasitic branch 241 and the second parasitic branch 242 can be close to the first side 301. In this case, the parasitic branch with its grounding end or open end close to the first side can be understood accordingly, referring to the parasitic branch in the above embodiment where the grounding end or open end is close to the first side. For the sake of brevity, further details will not be provided.

[0376] In one embodiment, the length L2 of the first parasitic branch 241 and the length L1 of the first radiator 231 satisfy: L1 0.3≤L2≤L1 0.6. In one embodiment, the length L3 of the second parasitic branch 242 and the length L1 of the first radiator 231 satisfy: L1 0.3≤L3≤L1 0.6.

[0377] It should be understood that the first and second ends of the first radiator 231 are open ends. The first radiator 231 can operate in half-wavelength mode. The first end of the first parasitic stub 241 is a grounded end, and the second end is an open end. The first end of the second parasitic stub 242 is a grounded end, and the second end is an open end. The first parasitic stub 241 and the second parasitic stub 242 can operate in quarter-wavelength mode.

[0378] In one embodiment, the length L2 of the first parasitic segment 241 and the length L3 of the second parasitic segment 242 satisfy: L2 0.9≤L3≤L2 1.1.

[0379] It should be understood that when the length L2 of the first parasitic branch 241 and the length L3 of the second parasitic branch 242 are approximately the same, the antenna 200 has better symmetry and superior radiation characteristics.

[0380] In one embodiment, the first switch branch 281, the second switch branch 282, the third switch branch 283, and the fourth switch branch 284 can be capacitors or elements equivalent to capacitors.

[0381] In one embodiment, when the length L2 of the first parasitic segment 241 and the length L3 of the second parasitic segment 242 are approximately the same (L2... 0.9≤L3≤L2 1.1) The equivalent capacitance value of the first switch branch 281 is greater than the equivalent capacitance value of the fourth switch branch 284.

[0382] It should be understood that when the first switch branch 281 is coupled to the first connection point 221, the resonant point of the first parasitic resonance generated by the first parasitic stub 241 is higher than the resonant point of the first resonance, thereby causing the current on the first radiator 231 and the current on the first parasitic stub 241 to be in the same direction. In one embodiment, the frequency difference between the resonant point frequency of the first parasitic resonance and the resonant point frequency of the first resonance is less than or equal to 100MHz. Since the excitation of the first parasitic resonance is weak, the frequency difference between the resonant point frequency of the first parasitic resonance and the resonant point frequency of the first resonance can be understood with reference to the radiative efficiency dip in the above embodiment.

[0383] When the fourth switch branch 284 is coupled to the second connection point 222, the resonant point of the second parasitic resonance generated by the second parasitic stub 242 is lower than the resonant point of the second resonance, thereby exciting the floor 300 to generate a standing wave, causing the current on the first radiator 231 and the current on the second parasitic stub 242 to be reversed. In one embodiment, the frequency difference between the resonant point frequency of the second parasitic resonance and the resonant point frequency of the second resonance is less than or equal to 200MHz. Since the excitation of the second parasitic resonance is weak, the frequency difference between the resonant point frequency of the second parasitic resonance and the resonant point frequency of the second resonance can be understood with reference to the radiative efficiency dip in the above embodiment.

[0384] Correspondingly, in order to achieve the above technical effect, when the length L2 of the first parasitic branch 241 and the length L3 of the second parasitic branch 242 are approximately the same, the equivalent capacitance value of the first switch branch 281 is greater than the equivalent capacitance value of the fourth switch branch 284.

[0385] In one embodiment, the length of the first parasitic branch 241 between the first connection point 221 and the fourth position 214 is less than or equal to one-third of the length of the first parasitic branch 241. In another embodiment, the length of the first parasitic branch 241 between the first connection point 221 and the fourth position 214 is less than or equal to 5 mm.

[0386] In one embodiment, the length of the second parasitic segment 242 between the second connection point 222 and the fifth position 215 is less than or equal to one-third of the length of the second parasitic segment 242. In another embodiment, the length of the second parasitic segment 242 between the second connection point 222 and the fifth position 215 is less than or equal to 5 mm.

[0387] It should be understood that the open end of the radiator (parasitic branch) has a strong electric field, and when the connection point is located in the vicinity of the open end, the radiation characteristics of the antenna 200 have a larger adjustment range.

[0388] In one embodiment, the antenna 200 further includes a first electronic component. The first parasitic stub 241 includes a third connection point and a fourth connection point, and the first parasitic stub 241 has a fifth insulating gap between the third connection point and the fourth connection point. The first electronic component is coupled between the third connection point and the fourth connection point.

[0389] In one embodiment, the antenna 200 further includes a second electronic component. The second parasitic stub 242 includes a fifth connection point and a sixth connection point, and the second parasitic stub 242 has a sixth insulating gap between the fifth and sixth connection points. The second electronic component is coupled between the fifth and sixth connection points.

[0390] It should be understood that the first parasitic branch 241 and / or the second parasitic branch 242 can form a metamaterial structure to expand the radiation aperture of the antenna 200, thereby giving the antenna 200 better radiation characteristics. Similarly, the metamaterial structure is similar to the metamaterial structure in the above embodiments, and for the sake of brevity, it will not be described in detail again.

[0391] In one embodiment, electronic components, such as the first radiator 231, are coupled to the floor 300. Figure 32 and Figure 33 As shown.

[0392] It should be understood that the connection method of this electronic component is similar to... Figures 9 to 28 The connection method of the first electronic component 261 in the electronic device 100 shown is similar, and for the sake of brevity, it will not be described in detail.

[0393] In one embodiment, the third position 213, the fourth position 214, the fifth position 215, and the sixth position 216 are arranged sequentially on the second side 302. In another embodiment, the open ends of the first parasitic branch 241 and the second parasitic branch 242 are close to each other.

[0394] In one embodiment, the fourth position 214 and the fifth position 215 coincide, such as Figure 32 As shown. The third and fourth insulating gaps coincide. One end of the first parasitic stub 241 and one end of the second parasitic stub 242 are opposite to each other but do not touch. The first parasitic stub 241 and the second parasitic stub 242 can together form a structure similar to a slot antenna.

[0395] In one embodiment, the fourth position 214, the third position 213, the sixth position 216, and the fifth position 215 are arranged sequentially on the second side 302, as follows: Figure 33 As shown. In one embodiment, the grounding end of the first parasitic branch 241 and the grounding end of the second parasitic branch 242 are close to each other.

[0396] In one embodiment, the third position 213 and the sixth position 215 coincide, such as Figure 33 As shown, the first parasitic branch 241 and the second parasitic branch 242 can together form a structure similar to a T-antenna.

[0397] It should be understood that in this embodiment, the description is based on the example of the grounding end of the first parasitic branch 241 and the grounding end of the second parasitic branch 242 being close to each other, or the open end of the first parasitic branch 241 and the open end of the second parasitic branch 242 being close to each other. In actual production or design, the open end of the first parasitic branch 241 can also be close to the grounding end of the second parasitic branch 242. This embodiment does not limit this.

[0398] Meanwhile, in this embodiment, the example is that the first parasitic branch 241 is closer to the first side 301 than the second parasitic branch 242. In actual production or design, the first parasitic branch 241 may also be farther away from the first side 301 than the second parasitic branch 242. This embodiment does not limit this.

[0399] It should be understood that in the above embodiments ( Figures 29 to 33 In the illustrated electronic device 100, when the first radiator 231 resonates, one of the parasitic segments 241 and 242 generates a parasitic resonance. The electronic device 100 can switch the parasitic segment that generates the parasitic resonance to generate different radiation patterns in the antenna 200. In actual production or design, when the first radiator 231 resonates, the first parasitic segment 241 and the second parasitic segment 242 can jointly generate a parasitic resonance. By switching the direction of the current on the first parasitic segment 241 and the second parasitic segment 242, different radiation patterns can be generated in the antenna 200.

[0400] In one embodiment, when the first switch branch 281 is coupled to the first connection point 221 and the third switch branch 283 is coupled to the second connection point 222, an electrical signal is fed into the first feed circuit 230. The first radiator 231 is used to generate the first main resonance, and the first parasitic stub 241 and the second parasitic stub 242 jointly generate the first parasitic resonance. The first main resonance and the first parasitic resonance together form the aforementioned first resonance.

[0401] In one embodiment, at the resonant point of the first resonance, the current on the first radiator 231, the current on the first parasitic branch 241, and the current on the second parasitic branch 242 are in the same direction, such as... Figure 34 As shown.

[0402] It should be understood that when the current on the first radiator 231 is in the same direction as the current on the first parasitic stub 241 and the current on the second parasitic stub 242, the first parasitic stub 241 and the second parasitic stub 242 can cause the radiation pattern generated by the antenna 200 to deflect toward the side closer to the first parasitic stub 241 (second parasitic stub 242).

[0403] In one embodiment, when the second switch branch 282 is coupled to the first connection point 221 and the fourth switch branch 284 is coupled to the second connection point 222, an electrical signal is fed into the first feed circuit 230, the first radiator 231 is used to generate the second main resonance, and the first parasitic stub 241 and the second parasitic stub 242 jointly generate the second parasitic resonance. The second main resonance and the second parasitic resonance together form the aforementioned second resonance.

[0404] In one embodiment, at the resonant point of the second resonance, the current on the first radiator 231 is opposite to the current on the first parasitic branch 241 and the current on the second parasitic branch 242, as shown below. Figure 35 As shown.

[0405] It should be understood that when the current on the first radiator 231 is opposite to the current on the first parasitic stub 241 and the current on the second parasitic stub 242, the first parasitic stub 241 and the second parasitic stub 242 can cause the radiation pattern generated by the antenna 200 to deflect away from the first parasitic stub 241 (second parasitic stub 242).

[0406] It should be understood that, for the sake of brevity, in Figure 34 and Figure 35 In the illustrated electronic device 100, only the case where the fourth position 214 and the fifth position 215 overlap is used as an example. In actual production or design, other conductor parts may be provided between the first parasitic branch 241 and the second parasitic branch 242, which will not be described in detail here.

[0407] At the same time, Figure 34 and Figure 35 In the illustrated electronic device 100, only the antenna 200 including the first parasitic branch 241 and the second parasitic branch 242 is used as an example for explanation. In actual production or design, the antenna 200 may include multiple parasitic branches, for example, it may also include a third parasitic branch. The parasitic resonance is generated by the first parasitic branch 241, the second parasitic branch 242 and the third parasitic branch. For the sake of brevity, they will not be described in detail.

[0408] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A foldable electronic device, characterized in that, include: The first shell and the floor, wherein... The first housing includes a first frame, which includes a first side and a second side that intersect at an angle. The first frame includes a first position, a second position, a third position, and a fourth position arranged sequentially. The first position and the second position are located on the first side, and the third position and the fourth position are located on the second side. The first frame has a first insulating gap, a second insulating gap, and a third insulating gap at the first position, the second position, and the fourth position, respectively. The first frame is coupled to the floor at the third position. A second housing and a first rotating shaft, the first rotating shaft being located between the first housing and the second housing, and rotatably connected to both the first housing and the second housing; and A first antenna, the first antenna comprising: A first radiator and a first parasitic branch, wherein the first radiator is a conductive portion of a first border between the first position and the second position, and the first parasitic branch is a conductive portion of the first border between the third position and the fourth position; at least a portion of the first radiator is spaced apart from the floor, and at least a portion of the first parasitic branch is spaced apart from the floor; and The first feed circuit and the first electronic component, the first radiator including a first feed point and a first connection point, the first feed circuit being coupled to the first feed point, the first electronic component being coupled between the floor and the first connection point, the first feed point and the first connection point being located on both sides of the virtual axis of the first radiator, the first radiator on both sides of the virtual axis having the same length; Wherein, based on the unfolded state of the foldable electronic device, the first radiator is used to generate a first resonance, the resonant frequency band of the first resonance includes the satellite communication frequency band, and wherein the first radiator, the first parasitic branch and the first electronic component are used to generate the radiation pattern of the antenna.

2. The foldable electronic device according to claim 1, characterized in that, When the foldable electronic device is in the unfolded state and the first antenna is operating in the satellite communication frequency band, the current on the floor of the first side of the virtual axis is greater than the current on the floor of the second side of the virtual axis, the first parasitic branch is located on the first side, and the first rotating shaft is located on the second side.

3. The foldable electronic device according to claim 1 or 2, characterized in that, Since the foldable electronic device is in the unfolded state, the beamwidth of the first antenna is related to the first parasitic stub.

4. The foldable electronic device according to any one of claims 1 to 3, characterized in that, Based on the fact that the first feed point is located on the first side of the virtual axis, the first connection point is located on the second side of the virtual axis, and the first electronic component exhibits open-circuit characteristics, or... Based on the fact that the resonant frequency of the first resonance is greater than or equal to 3GHz, and the equivalent inductance of the first electronic component is greater than or equal to 20nH, Based on the fact that the resonant frequency of the first resonance is greater than or equal to 2GHz and less than 3GHz, and the equivalent inductance of the first electronic component is greater than or equal to 10nH, Based on the fact that the resonant frequency of the first resonance is greater than or equal to 1 GHz and less than 2 GHz, the equivalent inductance of the first electronic component is greater than or equal to 5 nH.

5. The foldable electronic device according to any one of claims 1 to 3, characterized in that, Based on the fact that the first connection point is located on the first side of the virtual axis, the first power supply point is located on the second side of the virtual axis, and the first electronic component exhibits short-circuit characteristics, or... Based on the fact that the resonant frequency of the first resonance is greater than or equal to 3GHz, and the equivalent capacitance of the first electronic component is greater than or equal to 0.5pF, Based on the fact that the resonant frequency of the first resonance is greater than or equal to 2GHz and less than 3GHz, and the equivalent capacitance of the first electronic component is greater than or equal to 2pF, Based on the fact that the resonant frequency of the first resonance is greater than or equal to 1 GHz and less than 2 GHz, the equivalent capacitance of the first electronic component is greater than or equal to 3 pF.

6. The foldable electronic device according to any one of claims 1 to 5, characterized in that, The distance between the first feed point and the first or second position is less than or equal to one-third of the length of the first radiator, and / or, The distance between the first connection point and the first position or the second position is less than or equal to one-third of the length of the first radiator.

7. The foldable electronic device according to any one of claims 1 to 6, characterized in that, The first radiator is used to generate the main resonance, the first parasitic stub is used to generate the first parasitic resonance, the first parasitic resonance is located within the resonant frequency band of the main resonance, and the main resonance and the first parasitic resonance together form the first resonance.

8. The foldable electronic device according to any one of claims 1 to 7, characterized in that, The antenna generates an efficiency dip at a first frequency point, and the frequency difference between the resonant frequency of the first resonance and the first frequency point is less than or equal to 50MHz.

9. The foldable electronic device according to any one of claims 1 to 8, characterized in that, Based on the foldable electronic device performing satellite communication via the first antenna, the gain of the radiation pattern generated by the first antenna is greater than or equal to -6dBic within a 60° range of the angle with the first direction, where the first direction is the direction from the bottom of the foldable electronic device to the top of the foldable electronic device.

10. The foldable electronic device according to any one of claims 1 to 9, characterized in that, The first antenna further includes a second parasitic branch, which is a conductive portion of the first frame between the second position and the third position, and at least a portion of the second parasitic branch is spaced apart from the floor.

11. The foldable electronic device according to claim 10, characterized in that, The first end of the second parasitic branch and the first end of the first radiator are opposite each other through the second insulating gap and do not contact each other; The first antenna further includes a second electronic component, the first end of the second parasitic branch includes a second connection point, and the second electronic component is coupled between the floor and the second connection point.

12. The foldable electronic device according to any one of claims 1 to 11, characterized in that, The first frame also includes a fifth position, the first position being located between the fifth position and the second position, the first frame being coupled to the floor at the fifth position; The first antenna further includes a third parasitic branch, which is a conductive portion of the first frame between the first position and the fifth position, and at least a portion of the third parasitic branch is spaced apart from the floor.

13. The foldable electronic device according to any one of claims 1 to 12, characterized in that, The second housing includes a second frame, the third side of the second frame includes a sixth position and a seventh position, the second frame is coupled to the floor at the sixth position, and the second frame has a fourth insulating gap at the seventh position; The first antenna further includes a fourth parasitic branch, which is a conductive portion of the second frame between the sixth position and the seventh position, and at least a portion of the fourth parasitic branch is spaced apart from the ground. Based on the foldable electronic device being in an unfolded state, the first side and the third side are the top or bottom sides of the foldable electronic device.

14. The foldable electronic device according to claim 13, characterized in that, The first antenna also includes a third electronic component; The fourth parasitic branch includes a third connection point and a fourth connection point. The fourth parasitic branch has a fifth insulating gap between the third connection point and the fourth connection point. The third electronic component is coupled between the third connection point and the fourth connection point.

15. The foldable electronic device according to claim 14, characterized in that, The distance between the third connection point and the fifth insulating gap is less than or equal to 5 mm, and / or, The distance between the fourth connection point and the fifth insulating gap is less than or equal to 5 mm.

16. The foldable electronic device according to any one of claims 13 to 15, characterized in that, Since the foldable electronic device is in the unfolded state, the sixth position is located between the first position and the seventh position.

17. The foldable electronic device according to any one of claims 1 to 12, characterized in that, The second housing includes a second frame, and the third side of the second frame includes a sixth position and a seventh position. The second frame has a fourth insulating gap and a fifth insulating gap at the sixth position and the seventh position. The first antenna further includes a fourth parasitic branch, which is a conductive portion of the second frame between the sixth position and the seventh position, and at least a portion of the fourth parasitic branch is spaced apart from the ground. Based on the foldable electronic device being in an unfolded state, the first side and the third side are the top or bottom sides of the foldable electronic device.

18. The foldable electronic device according to any one of claims 1 to 12, characterized in that, The second housing includes a second frame, which includes a third side and a fourth side that intersect at an angle. The second frame includes a sixth position, a seventh position, an eighth position, and a ninth position arranged sequentially. The sixth position and the seventh position are located on the third side, and the eighth position and the ninth position are located on the fourth side. The second frame has a fourth insulating gap, a fifth insulating gap, and a sixth insulating gap at the sixth position, the seventh position, and the ninth position, respectively. The second frame is coupled to the floor at the eighth position. The foldable electronic device may further include a second antenna, the second antenna comprising: A second radiator and a fifth parasitic branch, the second radiator being a conductive portion of the second border between the sixth and seventh positions, the fifth parasitic branch being a conductive portion of the second border between the eighth and ninth positions, at least a portion of the second radiator being spaced apart from the floor, and at least a portion of the fifth parasitic branch being spaced apart from the floor; and The second feed circuit and the fourth electronic component, the second radiator including a second feed point and a fifth connection point, the second feed circuit being coupled to the second feed point, and the fourth electronic component being coupled between the floor and the fifth connection point; Wherein, based on the foldable electronic device being in an unfolded state, the first side and the third side are the top or bottom side of the foldable electronic device; With the foldable electronic device in its unfolded state, the second radiator and the fifth parasitic branch are used to generate a second resonance, the resonant frequency band of which includes the satellite communication frequency band.

19. The foldable electronic device according to claim 18, characterized in that, Based on the foldable electronic device being in a folded state, the first radiator and the second radiator at least partially overlap in a second direction, and / or the first parasitic branch and the fifth parasitic branch at least partially overlap in the second direction, where the second direction is the thickness direction of the foldable electronic device.

20. The foldable electronic device according to claim 18 or 19, characterized in that, Based on the foldable electronic device being in a folded state, the first insulating gap is aligned with the fourth insulating gap, and / or the second insulating gap is aligned with the fifth insulating gap, and / or the third insulating gap is aligned with the sixth insulating gap.

21. The foldable electronic device according to any one of claims 1 to 20, characterized in that, The ratio of the dimension of the floor along the extension direction of the first side when the foldable electronic device is in the unfolded state to that in the folded state is greater than or equal to 1.8 and less than or equal to 2.

2.

22. The foldable electronic device according to any one of claims 1 to 21, characterized in that, The foldable electronic device performs at least one of the following services in the satellite communication frequency band: receiving and / or sending short messages via satellite, making and / or answering phone calls via satellite, and receiving satellite data.

23. An electronic device, characterized in that, include: floor; The border includes a first side and a second side that intersect at an angle. The first edge includes a first position and a second position, and the frame has a first insulating gap and a second insulating gap at the first position and the second position, respectively. The second side includes a third position and a fourth position, the frame is coupled to the floor at the third position, and the frame has a third insulating gap at the fourth position; as well as Antenna, the antenna comprising: A radiator and a first parasitic branch, the radiator being a conductive portion of the frame between the first and second positions, the first parasitic branch being a conductive portion of the frame between the third and fourth positions, at least a portion of the radiator being spaced apart from the floor, and at least a portion of the first parasitic branch being spaced apart from the floor; and A feeding circuit, wherein the radiator includes a feeding point, and the feeding circuit is coupled to the feeding point; Wherein, the length L0 of the first side and the length L1 of the radiator satisfy: 2 L1≤L0; The distance L1' between the second position and the second side and the length L1 of the radiator satisfy: L1' ≤ L1 0.5; Furthermore, the radiator is used to generate a first resonance, the resonant frequency band of which includes a satellite communication frequency band, and the radiator and the first parasitic stub are used to generate the radiation pattern of the antenna.

24. The electronic device according to claim 23, characterized in that, The electronic device also includes: An electronic component, the radiator including a first connection point, the electronic component being coupled between the floor and the first connection point, the feed point and the first connection point being located on both sides of a virtual axis of the radiator, the radiator on both sides of the virtual axis having the same length; The radiator, the first parasitic branch, and the electronic components are used to generate the radiation pattern of the antenna.

25. The electronic device according to claim 23 or 24, characterized in that, The second side also includes a fifth position and a sixth position, wherein the frame has a fourth insulating gap at the fifth position and the frame is coupled to the floor at the sixth position; as well as The antenna also includes: The second parasitic branch is a conductive portion of the frame between the fifth and sixth positions, and at least a portion of the second parasitic branch is spaced apart from the floor. The radiator, the first parasitic branch, and the second parasitic branch are used to generate the radiation pattern of the antenna.

26. The electronic device according to claim 25, characterized in that, The antenna also includes: A first switch, a first switch branch, and a second switch branch; the first parasitic branch includes a second connection point; the first switch branch and the second switch branch are coupled between the floor and the second connection point via the first switch; and The second switch, the third switch branch, and the fourth switch branch, wherein the second parasitic branch includes a third connection point, and the third switch branch and the fourth switch branch are coupled between the floor and the third connection point through the second switch; The radiator, the first parasitic branch, the second parasitic branch, the first switch branch, and the third switch branch are used to generate a first resonance, the resonant frequency band of which includes the satellite communication frequency band; The radiator, the first parasitic branch, the second parasitic branch, the second switch branch, and the fourth switch branch are used to generate a second resonance, the resonant frequency band of which includes the satellite communication frequency band.

27. The electronic device according to claim 26, characterized in that, The radiator, the first parasitic branch, the second parasitic branch, the first switch branch, and the third switch branch are used to generate the first radiation pattern; The radiator, the first parasitic branch, the second parasitic branch, the second switch branch, and the fourth switch branch are used to generate a second radiation pattern, which is different from the first radiation pattern.

28. The electronic device according to any one of claims 25 to 27, characterized in that, The distance between the third position and the first side is less than the distance between the fourth position and the first side, and the distance L2' between the third position and the first side and the length L2 of the first parasitic branch satisfy: 0 ≤ L2' ≤ L2 2.5, and / or, The distance between the fifth position and the first side is less than the distance between the sixth position and the first side, and the distance L3' between the fifth position and the first side and the length L3 of the second parasitic branch satisfy: L3≤L3'≤L3 5.

29. The electronic device according to any one of claims 25 to 28, characterized in that, The length L2 of the first parasitic segment and the length L3 of the second parasitic segment satisfy: L2 0.9≤L3≤L2 1.

1.

30. The electronic device according to any one of claims 25 to 29, characterized in that, The length L2 of the first parasitic branch and the length L1 of the radiator satisfy: L1 0.3≤L2≤L1 0.6, and / or, The length L3 of the second parasitic branch and the length L1 of the radiator satisfy: L1 0.3≤L3≤L1 0.

6.

31. The electronic device according to any one of claims 25 to 30, characterized in that, The antenna also includes a first electronic component and / or a second electronic component; The first parasitic branch includes a fourth connection point and a fifth connection point, and the first parasitic branch has a fifth insulating gap between the fourth connection point and the fifth connection point. The first electronic component is coupled between the fourth connection point and the fifth connection point, and / or... The second parasitic branch includes a sixth connection point and a seventh connection point, and the second parasitic branch has a sixth insulating gap between the sixth connection point and the seventh connection point. The second electronic component is coupled between the sixth connection point and the seventh connection point.

32. The electronic device according to any one of claims 25 to 31, characterized in that, The third, fourth, fifth, and sixth positions are arranged sequentially on the second side.

33. The electronic device according to claim 32, characterized in that, The fourth position and the fifth position coincide.

34. The electronic device according to any one of claims 25 to 31, characterized in that, The fourth, third, sixth, and fifth positions are arranged sequentially on the second side.

35. The electronic device according to claim 34, characterized in that, The third position and the sixth position coincide.

36. The electronic device according to claim 26, characterized in that, At the resonance point of the first resonance, the current on the radiator and the current on the first parasitic stub are in the same direction, and / or, At the resonant point of the second resonance, the current on the radiator and the current on the second parasitic branch are in opposite directions.

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