An electronic device and a method for switching antennas

Abstract

This application provides an electronic device and a method for switching antennas. The electronic device includes a first antenna, a second antenna, and a controller. When the electronic device is in different communication states, the controller can configure some radiators as parasitic branches according to the different communication states to improve the communication performance of the electronic device.

Description

[0001] This application claims priority to Chinese Patent Application No. 202310802738.9, filed with the China National Intellectual Property Administration on June 30, 2023, entitled "An Electronic Device and a Method for Antenna Switching", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of wireless communication, and more particularly to an electronic device and a method for switching antennas. Background Technology

[0003] As people's demand for high-speed data transmission increases, the trend in industrial design (ID) of electronic devices is towards larger screen ratios and multiple cameras. This has resulted in a significant reduction in antenna clearance and increasingly limited layout space.

[0004] Currently, electronic devices operate on frequency bands including 3G, 4G, and 5G. Improving the communication quality of these devices within the existing antenna layout is a pressing issue that needs to be addressed. Summary of the Invention

[0005] This application provides an electronic device and a method for switching antennas. The electronic device includes a first antenna, a second antenna, and a controller. When the electronic device is in different communication states, the controller can configure some radiators as parasitic branches according to the different communication states to improve the communication performance of the electronic device.

[0006] In a first aspect, an electronic device is provided, comprising: a floor; a frame, at least a portion of which is spaced apart from the floor, the frame including a first position, a second position, a third position, and a fourth position sequentially disposed, the second position and the third position being located on a first side of the frame; a first antenna, the first antenna operating in a frequency band including a first frequency band, the first antenna including: a first radiator, the first radiator including a conductive portion of the frame between the first position and the second position; a second antenna, the second antenna operating in a frequency band including a second frequency band and a third frequency band, the second antenna including: a second radiator, the second radiator including a conductive portion of the frame between the third position and the fourth position; a first tuning circuit, the second radiator including a first connection point, the first tuning circuit being coupled between the first connection point and the floor; wherein the first frequency band and the second frequency band are the same or adjacent; based on the first antenna operating in the first frequency band, the second antenna is switched from the second frequency band to the third frequency band by the first tuning circuit.

[0007] According to an embodiment of this application, when the first antenna operates in the first frequency band and the second antenna operates in the second frequency band, since the first and second frequency bands are the same or adjacent, and the second and third positions are located on the first side of the frame, the second antenna interferes more strongly with the first antenna, causing the radiation characteristics (e.g., radiation efficiency) of the first antenna to deteriorate. However, when the first antenna operates in the first frequency band and the second antenna operates in the third frequency band, the second antenna will not interfere with the first antenna, thereby improving the radiation characteristics of the first antenna.

[0008] In conjunction with the first aspect, in some implementations of the first aspect, the frame is coupled to the floor at the first, third, and fourth positions, the frame has a first gap at the second position, and the second radiator has a second gap between the third and fourth positions.

[0009] According to an embodiment of this application, the first end of the first radiator is a grounded end (one end at the first position), and the second end is an open end (one end at the second position). Both the first and second ends of the second radiator are grounded ends. The structures of the first and second antennas can be determined based on actual production or design, and this application does not impose any limitations on this.

[0010] In conjunction with the first aspect, in some implementations of the first aspect, the length of the border between the second position and the third position is less than or equal to the first wavelength, where the first wavelength is the wavelength corresponding to the first frequency band.

[0011] In conjunction with the first aspect, in some implementations of the first aspect, the length of the border between the second position and the third position is less than or equal to 90 mm.

[0012] According to embodiments of this application, when the second position and the third position are within the aforementioned range, the first antenna and the second antenna exhibit strong interference in the same or adjacent frequency bands. In conjunction with the first aspect, in some implementations of the first aspect, the second position and the third position coincide; the frame is coupled to the ground at the first position, and the frame has a first gap and a second gap at the second position and the fourth position; the first end of the first radiator and the first end of the second radiator are opposite each other through the first gap and do not contact each other, the first end of the first radiator is an open end, and the first end of the second radiator is a grounded end.

[0013] In conjunction with the first aspect, in some implementations of the first aspect, the electronic device further includes a first modem, a second modem, and a second tuning circuit; wherein the first radiator includes a second connection point, and the second tuning circuit is connected between the second connection point and the floor; the first modem is electrically connected to the first tuning circuit, and the first modem is used to control the first tuning circuit to switch the operating frequency band of the second antenna; the second modem is electrically connected to the second tuning circuit, and the second modem is used to control the second tuning circuit to switch the operating frequency band of the first antenna; the first frequency band includes a portion of the communication frequency band in a non-cellular network, and the second frequency band includes a portion of the communication frequency band in a cellular network.

[0014] According to the embodiments of this application, the first frequency band and the second frequency band can be communication frequency bands in different communication systems.

[0015] In conjunction with the first aspect, in some implementations of the first aspect, the electronic device further includes an application processor (AP) and a first modem; the AP is electrically connected to the first modem; the first modem is electrically connected to the first tuning circuit; the second antenna's operating frequency band being switched from the second frequency band to the third frequency band by the first tuning circuit includes: the AP sending switching information to the first modem; the first modem controlling the first tuning circuit to switch the second antenna's operating frequency band from the second frequency band to the third frequency band according to the switching information.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the first frequency band is the 2.4G frequency band in WiFi, and the second frequency band is B40 or B41 in the cellular network, or the first frequency band is the L1 frequency band in GPS, and the second frequency band is B3 in the cellular network; based on the electronic device enabling the first frequency band, the operating frequency band of the second antenna is switched from the second frequency band to the third frequency band.

[0017] According to the embodiments of this application, B3 (1.71-1.785GHz) and L1 (1578.42±1.023MHz) are adjacent frequency bands, and B40 (2.3-2.4GHz) or B41 (2.496-2.69GHz) and WiFi / BT band (2.4-2.485GHz) are adjacent frequency bands.

[0018] In a second aspect, an electronic device is provided, comprising: a floor; a frame, at least a portion of which is spaced apart from the floor, the frame including a first position, a second position, and a third position sequentially disposed, the frame being coupled to the floor at the second position; a first antenna, the first antenna operating in a frequency band including a first frequency band, the first antenna including a first radiator, the first radiator including a conductive portion of the frame between the first position and the second position; a second antenna, the second antenna operating in a frequency band including a second frequency band and a third frequency band, the second antenna including a second radiator, the second radiator including a conductive portion of the frame between the second position and the third position; a tuning circuit, the second radiator including a connection point, the tuning circuit being coupled between the connection point and the floor; wherein the first frequency band and the second frequency band are the same or adjacent; based on the first antenna operating in the first frequency band, the second antenna is switched from the third frequency band to the second frequency band by the tuning circuit.

[0019] According to the embodiments of this application, when the first antenna operates in the first frequency band, the second antenna operates in the second frequency band. Since the first frequency band and the second frequency band are the same or adjacent, when the first radiator generates the main resonance, the second radiator can be excited to generate the parasitic resonance. The parasitic resonance is used to improve the radiation characteristics of the first antenna (e.g., radiation efficiency, operating bandwidth).

[0020] In conjunction with the second aspect, in some implementations of the second aspect, the frame is coupled to the floor at the first position, and the frame has a first gap at the third position; the first radiator has a second gap between the first position and the second position.

[0021] In conjunction with the second aspect, in some implementations of the second aspect, the first frequency band and the second frequency band are communication frequency bands in the range of 698MHz-960MHz, or communication frequency bands in the range of 1710MHz-2170MHz, or communication frequency bands in the range of 2300MHz-2690MHz.

[0022] In conjunction with the second aspect, in some implementations of the second aspect, the electronic device further includes a modem electrically connected to the tuning circuit; the second antenna switching its operating frequency band from the third frequency band to the second frequency band by the tuning circuit includes: the modem controlling the tuning circuit to switch the operating frequency band of the second antenna from the third frequency band to the second frequency band.

[0023] Thirdly, an electronic device is provided, comprising: a first antenna including a first tuning circuit; a second antenna including a second tuning circuit; a first switch, wherein a connection port of the first switch is electrically connected to the first tuning circuit; a first modem, wherein a first port of the first modem is electrically connected to a control port of the first switch, and a second port of the first modem is electrically connected to a first switching port of the first switch; and a second modem, wherein a first port of the second modem is electrically connected to a second switching port of the first switch, and a second port of the second modem is electrically connected to the second tuning circuit.

[0024] In conjunction with the third aspect, in some implementations of the third aspect, the control port of the first switch is used to switch the electrical connection state between the connection port of the first switch and the first switching port of the first switch, or to control the electrical connection state between the connection port of the first switch and the second switching port of the first switch.

[0025] In conjunction with the third aspect, in some implementations of the third aspect, the electronic device further includes a second switch; wherein the connection port of the second switch is electrically connected to the second tuning circuit, the first switching port of the second switch is electrically connected to the third port of the first modem, the second switching port of the second switch is electrically connected to the second port of the second modem, and the third port of the second modem is electrically connected to the control port of the second switch.

[0026] In conjunction with the third aspect, in some implementations of the third aspect, the operating frequency band of the first antenna includes a portion of the communication frequency band in non-cellular networks, and the operating frequency band of the second antenna includes a portion of the communication frequency band in cellular networks.

[0027] In conjunction with the third aspect, in some implementations of the third aspect, the electronic device further includes an application processor (AP) and a controller; wherein a first port of the AP is electrically connected to a first port of the controller, a second port of the AP is electrically connected to a fourth port of the first modem, and a second port of the controller is electrically connected to a fourth port of the second modem.

[0028] In conjunction with the third aspect, in some implementations of the third aspect, the first antenna operates in the 2.4G band of WiFi or the L1 band of GPS, and the second antenna operates in a communication band within the range of 1710MHz-2170MHz, or a communication band within the range of 2300MHz-2690MHz.

[0029] Fourthly, an electronic device is provided, comprising: a first antenna including a first tuning circuit; a second antenna including a second tuning circuit; a first modem and a second modem, wherein a first port of the first modem is electrically connected to a first port of the second modem, a second port of the second modem is electrically connected to the first tuning circuit, and a third port of the second modem is electrically connected to the second tuning circuit.

[0030] In conjunction with the fourth aspect, in some implementations of the fourth aspect, the operating frequency band of the first antenna includes a portion of the communication frequency band in the non-cellular network, and the operating frequency band of the second antenna includes a portion of the communication frequency band in the cellular network.

[0031] In conjunction with the fourth aspect, in some implementations of the fourth aspect, the electronic device further includes an application processor (AP) and a controller; wherein a first port of the AP is electrically connected to a first port of the controller, a second port of the AP is electrically connected to a fourth port of the first modem, and a second port of the controller is electrically connected to a fourth port of the second modem.

[0032] In conjunction with the fourth aspect, in some implementations of the fourth aspect, the first antenna operates in the 2.4G band of WiFi or the L1 band of GPS, and the second antenna operates in a communication band within the range of 1710MHz-2170MHz, or a communication band within the range of 2300MHz-2690MHz. Attached Figure Description

[0033] Figure 1 This is a schematic structural diagram of the foldable electronic device 100 provided in the embodiments of this application.

[0034] Figure 2 This is a schematic structural diagram of the foldable electronic device 100 in its outward-folded state.

[0035] Figure 3 This is a schematic structural diagram of the foldable electronic device 100 in one possible unfolded state.

[0036] Figure 4 This is a schematic structural diagram of a foldable electronic device 100 in one possible folded state.

[0037] Figure 5 This is a schematic structural diagram of a foldable electronic device 100 in one possible partially unfolded state.

[0038] Figure 6 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0039] Figure 7 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0040] Figure 8 yes Figure 6 The simulation results of the S-parameters of the first and second antennas in the electronic device shown.

[0041] Figure 9 yes Figure 6 The simulation results of the S-parameters of the second antenna when the first radiator in the electronic device is a parasitic branch are shown.

[0042] Figure 10 yes Figure 6 The system efficiency and radiation efficiency of the second antenna in the electronic device shown.

[0043] Figure 11 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0044] Figure 12 yes Figure 11 The simulation results of the S-parameters of the first and second antennas in the electronic device shown.

[0045] Figure 13 yes Figure 11 The simulation results of the S-parameters of the second antenna when the first radiator in the electronic device is a parasitic branch are shown.

[0046] Figure 14 yes Figure 11 The system efficiency and radiation efficiency of the second antenna in the electronic device shown.

[0047] Figure 15 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0048] Figure 16 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0049] Figure 17 yes Figure 11 The simulation results of the S-parameters of the second and third antennas in the electronic device shown are obtained when the first radiator is a parasitic branch.

[0050] Figure 18 yes Figure 11The system efficiency and radiation efficiency of the second antenna in the electronic device shown.

[0051] Figure 19 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0052] Figure 20 yes Figure 19 The simulation results of the S-parameters of the second antenna when the first radiator in the electronic device is a parasitic branch are shown.

[0053] Figure 21 yes Figure 19 The system efficiency and radiation efficiency of the second antenna when the first radiator in the electronic device is a parasitic branch.

[0054] Figure 22 yes Figure 19 The simulation results of the S-parameters of the first antenna when the second radiator in the electronic device is a parasitic stub are shown.

[0055] Figure 23 yes Figure 19 The system efficiency and radiation efficiency of the first antenna when the second radiator in the electronic device is a parasitic branch.

[0056] Figure 24 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0057] Figure 25 yes Figure 24 The simulation results of the S-parameters of the second antenna when the first radiator in the electronic device is a parasitic branch are shown.

[0058] Figure 26 yes Figure 24 The system efficiency and radiation efficiency of the second antenna when the first radiator in the electronic device is a parasitic branch.

[0059] Figure 27 yes Figure 24 The simulation results of the S-parameters of the first antenna when the second radiator in the electronic device is a parasitic stub are shown.

[0060] Figure 28 yes Figure 24 The system efficiency and radiation efficiency of the first antenna when the second radiator in the electronic device is a parasitic branch.

[0061] Figure 29 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0062] Figure 30 yes Figure 29 The system efficiency and radiation efficiency of the second antenna in the electronic device shown.

[0063] Figure 31 yes Figure 29 The system efficiency and radiation efficiency of the third antenna in the electronic device shown.

[0064] Figure 32 This is a schematic diagram of an antenna switching method 400 provided in an embodiment of this application.

[0065] Figure 33 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0066] Figure 34 yes Figure 33 The simulation results of the S-parameters of the first and second antennas are shown.

[0067] Figure 35 yes Figure 33 The simulation results for the radiation efficiency of the first ray are shown.

[0068] Figure 36 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0069] Figure 37 yes Figure 36 The simulation results for the radiation efficiency of the first ray are shown.

[0070] Figure 38 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0071] Figure 39 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0072] Figure 40 yes Figure 38 The simulation results for the radiation efficiency of the first ray are shown.

[0073] Figure 41 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0074] Figure 42 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0075] Figure 43 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0076] Figure 44 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application. Detailed Implementation

[0077] The following explains the terminology that may appear in the embodiments of this application.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] Components / devices: including at least one of lumped components / devices and distributed components / devices.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] A feed circuit / feed structure is a combination of all components of an antenna used for receiving and transmitting radio frequency (RF) waves. In some cases, the term "feed circuit" is narrowly interpreted as an RF chip (RFIC), or includes the transmission path from the RF chip to the feed point on the radiator or transmission line. In one embodiment, the feed circuit may include an RF front-end circuit for transmitting RF signals (analog signals). In one embodiment, the feed circuit is electrically connected to a baseband circuit for transmitting baseband signals (digital signals), which can be converted into RF signals by electronic components (e.g., an RF IC) in the feed circuit. In one embodiment, the baseband circuit may include a modem, which can be used to up-convert or down-convert the baseband signals. In one embodiment, portions of the RF front-end circuit and portions of the baseband circuit may be housed within a single chip, or separately within the RF front-end chip and the baseband chip.

[0090] End / Point: The term "end / point" in the context of the antenna radiator's first end / second end / feed end / ground end / feed point / ground point / connection point should not be narrowly interpreted as necessarily an endpoint or end physically disconnected from other radiators. It can also be considered a point or segment on a continuous radiator. In one embodiment, "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 part of the feed circuit). Similarly, a ground end / ground point can be a connection / coupling region on the antenna radiator that couples to a ground structure or ground circuit.

[0091] Open terminal, closed terminal: In some embodiments, open terminal / grounded terminal refers to whether or not it is grounded; the closed terminal is grounded, and the open terminal is not grounded. In some embodiments, open terminal / closed terminal refers to other conductors; the closed terminal is electrically connected to other conductors, and the open terminal is not electrically connected to other conductors. In one embodiment, the open terminal may also be referred to as a free terminal, open terminal, or open circuit terminal. In one embodiment, the closed terminal may also be referred to as a grounded terminal or short circuit terminal. It should be understood that in some embodiments, other conductors can be coupled through the open terminal to transfer coupled energy (which can be understood as transferring current).

[0092] Resonance / Resonant Frequency: The resonant frequency is also called the resonance frequency. The resonant frequency can refer to the frequency at which the imaginary part of the antenna's input impedance is zero. The resonant frequency can have a frequency range, that is, the frequency range where 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, in the phrase "generating the first resonance" mentioned in this application, the first resonance should be the fundamental mode resonance generated by the antenna / radiator, or the lowest frequency resonance generated by the antenna / radiator.

[0093] Resonant band / 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.

[0094] 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:

[0095] ;

[0096] Where L is the physical length. The wavelength of the electromagnetic wave.

[0097] 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.

[0098] 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 / ... The wavelength is calculated as () / frequency, where Ԑ 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 from 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, "medium wavelength" can also refer to the medium wavelength corresponding to the non-center frequency of the resonant frequency or 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.

[0099] Antenna system efficiency (total efficiency): refers to the ratio of input power to output power at the antenna port.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] It should be understood that, as mentioned in the embodiments of this application, the first frequency band and the second frequency band being the same (also referred to as being on the same frequency) can be understood as any of the following situations:

[0106] The first and second frequency bands include the same communication frequency band. In one embodiment, the first and second frequency bands can be applied to a MIMO antenna system. For example, if both the first and second frequency bands include the sub-6GHz frequency band in 5G, then the first and second frequency bands can be considered to be on the same frequency.

[0107] If the first frequency band and the second frequency band have at least some frequency overlap, for example, the first frequency band includes B35 (1.85-1.91GHz) in LTE and the second frequency band includes B39 (1.88-1.92GHz) in LTE. Since the frequencies of the first frequency band and the second frequency band partially overlap, it can be considered that the first frequency band and the second frequency band are on the same frequency.

[0108] It should be understood that, as mentioned in the embodiments of this application, the proximity of the first frequency band and the second frequency band can be interpreted as:

[0109] In the first and second frequency bands, the distance between the starting frequency of the higher frequency band and the ending frequency of the lower frequency band is less than 10% of the center frequency of the higher frequency band (or, the distance is less than or equal to 200MHz). For example, if the first frequency band includes B3 (1.71-1.785GHz) in LTE and the second frequency band includes L1 (1578.42±1.023MHz) in GPS, and B3 (1.71-1.785GHz) and L1 (1578.42±1.023MHz) are adjacent frequency bands, then the first and second frequency bands can be considered to be adjacent. Alternatively, for example, if the first frequency band includes B40 (2.3-2.4GHz) or B41 (2.496-2.69GHz) in LTE, and the second frequency band includes the WiFi / BT band (2.4-2.485GHz), then the first and second frequency bands can be considered to be adjacent if B40 (2.3-2.4GHz) or B41 (2.496-2.69GHz) and the WiFi / BT band (2.4-2.485GHz) are adjacent frequency bands.

[0110] 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.

[0111] 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.

[0112] 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).

[0113] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings.

[0114] 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.

[0115] 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.

[0116] 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.

[0117] 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.

[0118] 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.

[0119] 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.

[0120] 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.

[0121] 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.

[0122] The bezel 11 can be formed of a conductive material such as metal. The bezel 11 can be disposed between the display module 15 and the back cover 21 and extend circumferentially around the periphery of the electronic device 100. The bezel 11 can have four sides surrounding the display module 15 to help secure the display module 15. In one implementation, the bezel 11 made of conductive material can be directly used as a conductive bezel of the electronic device 100, for example, forming the appearance of a metal bezel, suitable for industrial design (ID). In another implementation, the outer surface of the bezel 11 can be a conductive material, such as metal, thereby forming the appearance of a metal bezel. In these implementations, the conductive portion of the bezel 11 can be used as an antenna radiator of the electronic device 100.

[0123] In another implementation, the outer surface of the frame 11 can also be a non-conductive material, such as plastic, forming a non-metallic frame appearance suitable for non-metallic IDs. In one implementation, the inner surface of the frame 11 can include a conductive material, such as a metallic material. In this implementation, the conductive portion of the frame 11 can be used as an antenna radiator of the electronic device 100. It should be understood that the radiator (or, in other words, the conductive material of the inner surface) disposed on the inner surface of the frame 11 is attached to the non-conductive material of the frame 11 to facilitate antenna radiation, and both the conductive and non-conductive materials should be considered as part of the frame 11.

[0124] 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.

[0125] 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.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] Figure 2 This illustrates one possible folded state of the foldable electronic device 100. Figure 2 The 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.

[0130] 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.

[0131] Combination Figure 1 and Figure 2When 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.

[0132] 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.

[0133] 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.

[0134] 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.

[0135] 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.

[0136] 1. For example Figure 3The 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.

[0137] 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.

[0138] 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.

[0139] 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.

[0140] 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.

[0141] 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.

[0142] This application provides an electronic device and a method for switching antennas. The electronic device includes a first antenna, a second antenna, and a controller. When the electronic device is in different communication states, the controller can configure some radiators as parasitic branches according to the different communication states to improve the communication performance of the electronic device.

[0143] Figure 6 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0144] like Figure 6 As shown, the electronic device 100 includes a first antenna 201 and a second antenna 202. The operating frequency bands of the first antenna 201 and the second antenna are different.

[0145] The first antenna 201 includes a first radiator 210 and a first feed circuit 231. The second antenna 202 includes a second radiator 220 and a second feed circuit 232.

[0146] The first radiator 210 includes a first feed point 211. A first feed circuit 231 is coupled to the first feed point 211. The first feed circuit 231 includes a first switch 241, which can be used to switch the coupling connection state between the first feed circuit 231 and the first feed point 211. For example, in Figure 6 In the structure shown, the first port of the first switch 241 is coupled to the first feed point 211. No other electronic components are provided between the first switch 241 and the first feed point 211 (the second port of the first switch 241 is coupled to other electronic components in the first feed circuit 231). The first switch 241 can make the first feed circuit 231 and the first feed point 211 conduct or disconnect.

[0147] It should be understood that in this embodiment, the example is only provided with no other electronic components between the first switch 241 and the first power supply point 211. In actual production or design, the first switch 241 can also be set at any position in the first power supply circuit 231. This embodiment does not limit this. The switches set in other power supply circuits in this embodiment can also be understood accordingly.

[0148] For the sake of brevity, the coupling connections in this application are all described using electrical connections as an example. In actual production or application, they can be achieved through electrical connections or indirect coupling, and will not be described in detail here.

[0149] The second radiator 220 includes a second feed point 221, and the second feed circuit 232 is coupled to the second feed point 221.

[0150] The electronic device 100 may also include a controller 230. A first port of the controller 230 is electrically connected to the control port of the first switch 241 to control the switching state of the first switch 241.

[0151] It should be understood that, according to the technical solutions provided in this application, when the electronic device 100 is in different communication states, the controller 230 can control the first switch 241 to be in different switching states, so as to improve the communication performance of the electronic device 100.

[0152] In this context, the different communication states of electronic device 100 can be understood as electronic device 100 transmitting and receiving signals through different antennas to achieve communication. Alternatively, it can be understood as electronic device 100 communicating in different communication frequency bands.

[0153] In one embodiment, the controller 230 receives a first signal and determines the switching state of the first switch 241 based on the first signal. The first signal is used to determine the operating state of the second antenna. For example, when the first signal indicates that the second antenna 202 is working (the electronic device 100 communicates through the second antenna 202), the first radiator 210, as a parasitic branch of the second antenna 202, can be used to improve the radiation performance of the second antenna 202, thereby improving the communication quality of the electronic device 100.

[0154] It should be understood that the controller 230 determining the switching state of the first switch 241 based on the first signal can be interpreted as the controller 230, after determining the on or off state of the first switch 241 based on the first signal, instructing other electronic components to switch the switching state of the first switch 241 to the on or off state. For example, after determining the switching state of the first switch 241, the controller 230 can instruct a switcher (e.g., an RF IC in a power supply circuit) to switch the first switch 241 to the on or off state. Alternatively, in one embodiment, the controller 230 determining the switching state of the first switch 241 based on the first signal can be interpreted as the controller 230 switching the first switch 241 to the on or off state based on the first signal, without switching the first switch 241 through other electronic components. In the embodiments of this application, the switching states determined by the controller 230 can all be understood accordingly.

[0155] In one embodiment, when the first radiator 210 acts as a parasitic branch of the second antenna 202, the controller 230 switches the first switch 241 from a first switch state to a second switch state, and the first power supply circuit 231 is not electrically connected to the first power supply point 211 (disconnected).

[0156] In one embodiment, the first switch 241 is a single-pole single-throw (SPST). It should be understood that in this embodiment, the switch can be selected according to actual production or design, and can also be a single-pole double-throw (SPDT) or a single-pole multi-throw (SPXT). This embodiment does not limit this, only requiring that the number of second ports of the switch is greater than the number of electronic components or radio frequency channels that need to be connected.

[0157] In one embodiment, the first antenna 201 may further include a second switch 242. A first port of the second switch 242 is coupled to the ground, and a second port of the second switch 242 is coupled to the first feed point 211. A second port of the controller 230 is electrically connected to the control port of the second switch 242 to control the switching state of the second switch 242. In one embodiment, at least one electronic component 251 is electrically connected between the second port of the second switch 242 and the first feed point 211. In another embodiment, at least one electronic component 251 is electrically connected between the first port of the second switch 242 and the ground. In one embodiment, the second switch 242 is used to switch the coupling connection state of at least one electronic component 251 with the first feed point 211 or with the ground.

[0158] For the sake of brevity, in this embodiment of the application, only one example is used: at least one electronic component 251 is electrically connected between the second port of the second switch 242 and the first power supply point 211.

[0159] In one embodiment, the controller 230 determines the switching state of the second switch 242 based on the first signal.

[0160] It should be understood that the second switch 242 can be used to match the radiation characteristics (e.g., the frequency of the resonant point) of the resonance generated by the first radiator 210. For example, when the first radiator 210 is used to generate the first resonance, the controller 230 instructs the first port of the second switch 242 to be electrically connected to the first second port, thereby coupling the electronic component 251, which is electrically connected between the first second port and the ground, to the first feed point 211. When the first radiator 210, as a parasitic stub of the second antenna 202, generates the first parasitic resonance, the controller 230 instructs the first port of the second switch 242 to be electrically connected to the second second port, thereby coupling the electronic component 251, which is electrically connected between the second second port and the ground, to the first feed point 211.

[0161] Furthermore, in the embodiments of this application, the switching state of all switches is determined by the controller 230. The controller 230 can switch the on / off state of the switch by sending an electrical signal to the control port of the switch.

[0162] In one embodiment, the first port of the first switch 241 and the second port of the second switch 242 can both be coupled to the first feed point 211 through the same feed connector (e.g., metal spring).

[0163] In one embodiment, for the sake of brevity, the above embodiments are described using the example of the first switch 241 and the second switch 242 being coupled to the first radiator 210 at the first feed point 211. In one embodiment, the first radiator 210 includes a first connection point, and the second port of the second switch 242 is coupled to the first connection point. The first connection point and the first feed point 211 are different.

[0164] It should be understood that when the first switch 241 is an x-pole x-throw (XPXT) switch, the first switch 241 may include at least two first ports, which can simultaneously realize the functions of the first switch 241 and the second switch 242 described above. One of the at least two first ports can be used to switch the coupling connection state with the first feed circuit 231, and one of the at least two first ports can be used to switch the electronic components electrically connected to the ground, in order to match the different resonances generated by the first radiator 210.

[0165] In one embodiment, the controller 230 can be a microcontroller unit (MCU).

[0166] In one embodiment, the second power supply circuit 232 may include a third switch 243, which can be used to switch the coupling connection state between the second power supply circuit 232 and the second power supply point 221. For example, in Figure 6 In the structure shown, the first port of the third switch 243 is coupled to the second feed point 221, and the second port of the third switch 243 is coupled to other electronic components in the second feed circuit 232. The third port of the controller 230 is electrically connected to the control port of the third switch 243 to control the switching state of the third switch 243.

[0167] It should be understood that the controller 230 receives the second signal and determines the switching state of the third switch 243 based on the second signal. The second signal is used to determine the operating state of the first antenna. For example, when the first signal indicates that the first antenna 201 is working (the electronic device 100 communicates through the first antenna 201), the second radiator 220, as a parasitic extension of the first antenna 201, can be used to improve the radiation performance of the first antenna 201, thereby improving the communication quality of the electronic device 100.

[0168] In one embodiment, the controller 230 receives a first signal and a second signal, and determines the switching state of the switch based on the first signal and the second signal (the operating states of the first antenna 201 and the second antenna) to improve the communication quality of the electronic device 100.

[0169] In one embodiment, the second antenna 202 may further include a fourth switch 244. A first port of the fourth switch 244 is coupled to the ground. A second port of the fourth switch 244 is coupled to the second feed point 221. A fourth port of the controller 230 is electrically connected to the control port of the fourth switch 244 to control the switching state of the fourth switch 244. In one embodiment, at least one electronic component 252 is electrically connected between the second port of the fourth switch 244 and the second feed point 221. In another embodiment, at least one electronic component 252 is electrically connected between the first port of the fourth switch 244 and the ground. In one embodiment, the fourth switch 244 is used to switch the coupling connection state of at least one electronic component 252 with the second feed point 221 or with the ground.

[0170] It should be understood that the fourth switch 244 can be used to match the radiation characteristics (e.g., the frequency of the resonant point) of the resonance generated by the second radiator 220. For example, when the second radiator 220 is used to generate a second resonance, the controller 230 instructs the first port of the fourth switch 244 to be electrically connected to the first second port, thereby coupling the electronic component 252, which is electrically connected between the first second port and the ground, to the second feed point 221. When the second radiator 220, as a parasitic stub of the first antenna 201, generates a second parasitic resonance, the controller 230 instructs the first port of the fourth switch 244 to be electrically connected to the second second port, thereby coupling the electronic component 252, which is electrically connected between the second second port and the ground, to the second feed point 221.

[0171] In one embodiment, the operating frequency band of the first antenna 201 may include at least a portion of the frequency bands in a cellular network, such as B1 (1920MHz–1980MHz), B3 (1710MHz–1785MHz), and B7 (2500MHz–2570MHz) in LTE. In one embodiment, the operating frequency band of the first antenna 201 may also include a satellite communication frequency band. In one embodiment, the operating frequency band of the first antenna 201 may also include at least a portion of the frequency bands in a non-cellular network, such as the WiFi band, BT band, GPS band, or may also include a satellite communication frequency band.

[0172] In one embodiment, the operating frequency band of the second antenna 202 may include at least a portion of the frequency bands in a cellular network. In one embodiment, the operating frequency band of the second antenna 202 may also include a satellite communication frequency band. In one embodiment, the operating frequency band of the second antenna 202 may also include at least a portion of the frequency bands in short-range communication, such as the WiFi band, the BT band, the GPS band, or may also include a satellite communication frequency band.

[0173] In one embodiment, the first antenna further includes a first modem 261, such as... Figure 7 As shown. The first modem 261 is electrically connected to the first feed circuit 231. The first modem 261 can be used to process electrical signals transmitted or received by the first antenna 201.

[0174] In one embodiment, the second antenna further includes a second modem 262. The second modem 262 is electrically connected to the second power supply circuit 232. The second modem 262 can be used to process electrical signals transmitted or received by the second antenna 202.

[0175] It should be understood that the above-mentioned modem for processing electrical signals transmitted or received by the antenna can be understood as modulating the electrical signals transmitted by the feed circuit, for example, up-converting, or modulating the electrical signals received by the antenna, for example, down-converting.

[0176] In one embodiment, the electronic device includes a first chip, which includes a controller 230 and a first modem 261. The controller 230 and the first modem 261 are integrated within the same chip.

[0177] It should be understood that the controller 230 and the first modem 261 are independently configured and connected via an interface. Switching the on / off state of the switch by the controller 230 can cause timing disruptions in the transmitted electrical signals, requiring complex processing. However, when the controller 230 and the first modem 261 are integrated into the same chip (the first chip includes both the controller 230 and the first modem 261), they are hardware-bonded via circuitry, preventing timing disruptions in the transmitted electrical signals caused by the controller 230 switching the switch's on / off state.

[0178] In one embodiment, the electronic device 100 may further include an application processor (AP). A first port of the AP 260 is electrically connected to the controller 230, and a second port is electrically connected to the second modem 262.

[0179] It should be understood that AP260 can be used to transmit a first signal to controller 230, which can be used to determine the operating status of the second antenna. For example, the operating status of the second antenna can be understood as whether the electronic device is communicating through the second antenna.

[0180] In one embodiment, the electronic device 100 may further include a system-on-chip (SoC). The SoC may include an AP 260, a controller 230, and a first modem 261, which are integrated within the SoC.

[0181] In one embodiment, AP260 can also receive a third signal transmitted by the second modem 262. The third signal can be used to determine the operational status of the second antenna. In one embodiment, the third signal may include the operating frequency band of the second antenna and service information.

[0182] In one embodiment, the first modem 261 sends a second signal to the controller 230, which can be used to determine the operating status of the first antenna. In another embodiment, a third signal may include the operating frequency band of the first antenna and service information.

[0183] Figures 8 to 10 yes Figure 6 The simulation results of the antenna in the electronic device are shown. Among them, Figure 8 yes Figure 6 The simulation results of the S-parameters of the first and second antennas in the electronic device shown. Figure 9 yes Figure 6 The simulation results of the S-parameters of the second antenna when the first radiator in the electronic device is a parasitic branch are shown. Figure 10 yes Figure 6 The system efficiency and radiation efficiency of the second antenna in the electronic device shown.

[0184] It should be understood that, for the sake of brevity, in Figure 6 The electronic devices shown are illustrated using only the example of the first antenna operating in the WiFi band and the second antenna operating in the GPS band.

[0185] like Figure 8 As shown, when an electronic device communicates simultaneously through the first antenna (S11) and the second antenna (S22) (both the first and second antennas are operational), the first antenna resonates near 2.4 GHz (first resonance), and its resonant frequency band can include the WiFi frequency band. The second antenna resonates near 1.6 GHz (second resonance), and its resonant frequency band can include the GPS frequency band. Furthermore, the isolation (S12) between the first and second antennas is less than -12 dB.

[0186] When the electronic device communicates only through the second antenna (the first antenna is not working and the second antenna is working), the controller makes the first port of the first switch not electrically connected to the first feed circuit, and the first port of the second switch electrically connected to the electronic component corresponding to the parasitic branch of the second antenna as the first radiator, so that the first radiator acts as the parasitic branch of the second antenna.

[0187] like Figure 9 As shown, the second antenna can resonate around 1.6 GHz and 2 GHz. The resonance around 1.6 GHz is a second resonance generated by the second radiator. The resonance around 2 GHz is a first parasitic resonance generated by the first radiator, which can be used to improve the radiation characteristics of the second antenna, such as radiation efficiency and system efficiency.

[0188] like Figure 10 As shown, in the GPS band, compared to the first radiator not being used as a parasitic branch, the second antenna improves system efficiency by about 0.5 dB and radiation efficiency by about 0.5 dB.

[0189] Figure 11 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0190] like Figure 11 As shown, the electronic device includes a first frame 2710.

[0191] The first frame 2710 includes a first position 281, a second position 282, a third position 283, and a fourth position 284 sequentially arranged along its extending direction. In one embodiment, the second position 282 is located between the first position 281 and the third position 283, and the third position 283 is located between the second position 282 and the fourth position 284. The first frame 2710 is coupled to the floor at the first position 281 and the third position 283, and the first frame 2710 has a first gap at the second position 282 and a second gap at the fourth position 284.

[0192] The first radiator 210 is the conductive portion between the first position 281 and the second position 282. The second radiator 220 is the conductive portion between the third position 283 and the fourth position 284.

[0193] In one embodiment, the first frame 2710 further includes a first connection point 222. The first connection point 222 is located between the second position 282 and the third position 283. The electronic device 100 also includes a fifth switch 245. A first port of the fifth switch 245 is coupled to the floor, and a second port of the fifth switch 245 is coupled to the first connection point 222. A fifth port of the controller 230 is electrically connected to the control port of the fifth switch 245 to control the switching state of the fifth switch 245. In one embodiment, at least one electronic component 253 is electrically connected between the second port of the fifth switch 245 and the first connection point 222. In another embodiment, at least one electronic component 253 is electrically connected between the first port of the fifth switch 245 and the floor.

[0194] It should be understood that the fifth switch 245 can be used to switch the radiating aperture of the second antenna. When both the first and second antennas are working, the first port of the fifth switch 245 is directly electrically connected to the first connection point 222, or electrically connected to the first connection point 222 through a 0-ohm resistor. The second antenna radiates from the second frame 2720 between the third position 283 and the fourth position 284. When the first antenna is not working and the second antenna is working, the first port of the fifth switch 245 is electrically connected to the corresponding second port, and the first connection point 222 is electrically connected to the ground through the corresponding electronic component 253. The second antenna radiates from the second frame 2720 between the second position 282 and the fourth position 284. At the same time, the first switch 241 disconnects the first feed circuit 231 from the first feed point 211 (no electrical connection), and the first port of the second switch 242 is electrically connected to the electronic component 251 corresponding to the parasitic branch of the first radiator 210 as the second antenna, so that the first radiator 210 acts as a parasitic branch of the second antenna, thereby improving the radiation characteristics of the second antenna.

[0195] In one embodiment, the electronic device 100 may further include a third antenna. The third antenna includes a third radiator 310. The second frame 2720 includes a fifth position 285, and a fourth position 284 is located between the third position 283 and the fifth position 285. The third radiator 310 is the conductive portion between the fifth position 285 and the fourth position 284.

[0196] Figures 12 to 14 yes Figure 11 The simulation results of the antenna in the electronic device are shown. Among them, Figure 12 yes Figure 11 The simulation results of the S-parameters of the first and second antennas in the electronic device shown. Figure 13 yes Figure 11 The simulation results of the S-parameters of the second antenna when the first radiator in the electronic device is a parasitic branch are shown. Figure 14 yes Figure 11The system efficiency and radiation efficiency of the second antenna in the electronic device shown.

[0197] It should be understood that, for the sake of brevity, in Figure 6 In the electronic device shown, only the first antenna is used as a sub-unit in the MIMO system and its operating frequency band includes at least the sub-6G frequency band, and the second antenna's operating frequency band includes the WiFi frequency band, as an example for illustration.

[0198] like Figure 12 As shown, when an electronic device communicates simultaneously through the first antenna (S11) and the second antenna (S22) (both the first and second antennas are operational), the first antenna resonates near 2.6 GHz and 3.9 GHz, and its resonant frequency band can include at least one frequency band in the sub-6 GHz band. The second antenna resonates near 2.4 GHz, and its resonant frequency band can include the WiFi band. Furthermore, the isolation (S12) between the first and second antennas is less than -18 dB.

[0199] When electronic devices communicate solely through the second antenna (with the first antenna inactive and the second antenna active), the second antenna can resonate around 2.4 GHz and 2.6 GHz, such as... Figure 13 As shown.

[0200] like Figure 14 As shown, in the WiFi band, compared to the first radiator not acting as a parasitic branch, the second antenna improves system efficiency by about 0.8 dB and radiation efficiency by about 1 dB.

[0201] Figure 15 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0202] like Figure 15 As shown, the electronic device 100 may include a first housing 271, a second housing 272, and a first rotating shaft 273.

[0203] The first rotating shaft 273 is located between the first housing 271 and the second housing 272, and the first rotating shaft 273 is rotatably connected to the first housing 271 and the second housing 272 respectively, so that the first housing 271 and the second housing 272 can rotate relative to each other.

[0204] The first housing 271 includes a first frame 2710, and the second housing 272 includes a second frame 2720.

[0205] The first border 2710 includes a first position 281 and a second position 282. The second border 2720 includes a third position 283 and a fourth position 284. The first radiator 210 is the conductive portion between the first position 281 and the second position 282. The second radiator 220 is the conductive portion between the third position 283 and the fourth position 284.

[0206] like Figure 16 As shown, when the electronic device 100 is in a folded state, the first radiator 210 and the second radiator 220 overlap at least partially along a first direction, which is the thickness direction of the electronic device 100, for example, the z-direction.

[0207] In one embodiment, the first frame 2710 is coupled to the floor at a first position 281, and the first frame 2710 has a first gap at a second position 282. In another embodiment, the second frame 2720 has a second gap at a third position 283, and the second frame 2720 is coupled to the floor at a fourth position 284.

[0208] It should be understood that, for the sake of brevity, the embodiments of this application are only described with one end of the radiator in the first antenna 201 and the second antenna 202 being an open end and the other end being a ground-coupled end, and operating in a quarter-wavelength mode. In actual applications, the first antenna 201 and the second antenna 202 can also operate in other modes.

[0209] In one embodiment, the length L1 of the first radiator (the first border 2710 between the first position 281 and the second position 282) and the length L2 of the second radiator (the second border 2720 between the third position 283 and the fourth position 284) satisfy: 1.5 L2≤L1≤2 L2.

[0210] In one embodiment, when the electronic device 100 communicates via the second antenna 202, the controller can control the first switch 241 to disconnect the first power supply circuit 231 from the first power supply point 211 (not electrically connected), and control the first port of the second switch 242 to electrically connect the first radiator 210 as a parasitic branch of the second antenna 202 to the electronic component 251, so that the first radiator 210 acts as a parasitic branch of the second antenna 202, thereby improving the communication performance of the electronic device 100.

[0211] It should be understood that, for the sake of brevity, this application embodiment only uses the example of the first antenna 201 not working and the second antenna 202 working. In actual production or design, when the first antenna 201 is working and the second antenna 202 is not working, the second radiator 220 of the second antenna 202 can also be used as a parasitic branch of the first antenna 201 to improve the radiation characteristics of the first antenna 201. This application embodiment does not limit this.

[0212] In one embodiment, the electronic device 100 may further include a third antenna 301. The third antenna 301 includes a third radiator 310. The second frame 2720 includes a fifth position 285 and a sixth position 286, with the third position 283, fourth position 284, fifth position 285, and sixth position 286 sequentially arranged along the extending direction of the second frame. The fifth position 285 is located between the fourth position 284 and the sixth position 286, and the fourth position 284 is located between the third position 283 and the fifth position 285. The third radiator 310 is the conductive portion between the fifth position 285 and the sixth position 286.

[0213] In one embodiment, the second frame 2720 has a third gap at a fifth position 285, and the second frame 2720 is coupled to the floor at a sixth position 286.

[0214] In one embodiment, the length L1 of the first radiator (the first border 2710 between the first position 281 and the second position 282) and the length L3 of the third radiator (the second border 2720 between the fifth position 285 and the sixth position 286) satisfy: 1.8 L3≤L1≤3 L3.

[0215] In one embodiment, the electronic device 100 may further include a fourth antenna 302. The fourth antenna 302 includes a fourth radiator 320. The second frame 2720 includes a seventh position 287, and a third position 283 is located between the fourth position 284 and the seventh position 287. The third radiator 310 is the conductive portion between the seventh position 287 and the third position 283.

[0216] In one embodiment, the second frame 2720 is coupled to the floor at the seventh position 287.

[0217] Figure 17 and Figure 18 yes Figure 16 The simulation results of the antenna in the electronic device are shown. Among them, Figure 17 yes Figure 11 The simulation results of the S-parameters of the second and third antennas in the electronic device shown are obtained when the first radiator is a parasitic branch. Figure 18 yes Figure 11 The system efficiency and radiation efficiency of the second antenna in the electronic device shown.

[0218] It should be understood that, for the sake of brevity, in Figure 11The electronic device shown is illustrated using only the following examples: the first antenna operates in a frequency band that includes at least a portion of the low band (LB) (698MHz-960MHz); the second antenna operates in a frequency band that includes the L1 band of GPS; the third antenna operates in a frequency band that may include at least a portion of the middle band (MB) (1710MHz-2170MHz); and the fourth antenna operates in a frequency band that includes the WiFi band.

[0219] like Figure 17 As shown, when electronic devices communicate solely through the second and third antennas (with the first antenna inactive and both antennas active), the first radiator acts as a parasitic stub of the second antenna, enhancing its radiation characteristics. The second antenna (S22) resonates near 1 GHz and 1.6 GHz, its resonant frequency band including the L1 band of GPS. The third antenna (S33) resonates near 1.8 GHz and 1.1 GHz, its resonant frequency band including the B3 band of MB. When the first radiator acts as a parasitic stub, the isolation (S23) between the second and third antennas is less than -8 dB.

[0220] like Figure 18 As shown, in the GPS L1 band, the radiation efficiency of the second antenna is -2.57 dB when the electronic device is in the deployed state; -4.61 dB when the electronic device is in the folded state and the first antenna operates in the B5 band of the LB; -5.41 dB when the electronic device is in the folded state and the first antenna operates in the B5 band of the LB; and -3.37 dB when the electronic device is in the folded state and the first radiator in the first antenna acts as a parasitic branch. When the electronic device is in the folded state, the radiation efficiency of the second antenna is significantly improved compared to when the first radiator is not acting as a parasitic branch.

[0221] Figure 19 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0222] It should be understood that, Figure 19 In the electronic device 100 shown, with Figure 16 The only difference between the illustrated electronic device 100 and the first radiator 210 and the second radiator 220 is their length. Figure 16 In the illustrated electronic device 100, the length L1 of the first radiator (the first frame 2710 between the first position 281 and the second position 282) and the length L2 of the second radiator (the second frame 2720 between the third position 283 and the fourth position 284) satisfy: 1.5 L2≤L1≤2 L2. In Figure 19 In the illustrated electronic device 100, the length L1 of the first radiator (the first frame 2710 between the first position 281 and the second position 282) is approximately the same as the length L2 of the second radiator (the second frame 2720 between the third position 283 and the fourth position 284), satisfying: 0.9 L2≤L1≤1.1 L2.

[0223] Figures 20 to 23 yes Figure 19 The simulation results of the antenna in the electronic device are shown. Among them, Figure 20 yes Figure 19 The simulation results of the S-parameters of the second antenna when the first radiator in the electronic device is a parasitic branch are shown. Figure 21 yes Figure 19 The system efficiency and radiation efficiency of the second antenna when the first radiator in the electronic device is a parasitic branch. Figure 22 yes Figure 19 The simulation results of the S-parameters of the first antenna when the second radiator in the electronic device is a parasitic stub are shown. Figure 23 yes Figure 19 The system efficiency and radiation efficiency of the first antenna when the second radiator in the electronic device is a parasitic branch.

[0224] It should be understood that, for the sake of brevity, in Figure 19 The electronic device shown is illustrated using only one example: the first antenna operates in a frequency band that includes at least a portion of the MB band, and the second antenna operates in a frequency band that includes the WiFi band.

[0225] like Figure 20 As shown, when electronic devices communicate only through the second antenna (the first antenna is not working and the second antenna is working), the first radiator, as a parasitic stub of the second antenna, will generate parasitic resonance around 2 GHz.

[0226] like Figure 21 As shown, in the WiFi band, when the first radiator acts as a parasitic branch, the radiation efficiency and system efficiency of the second antenna are improved by approximately 2.7 dB.

[0227] like Figure 22 As shown, when the electronic device communicates only through the first antenna (the second antenna is not working and the first antenna is working), the second radiator, as a parasitic branch of the first antenna, will generate a parasitic resonance near 1.68 GHz.

[0228] like Figure 23 As shown, in the MB band, when the second radiator acts as a parasitic branch, the radiation efficiency of the first ray and the system efficiency are improved by about 3 dB.

[0229] Figure 24 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0230] It should be understood that, Figure 24 In the electronic device 100 shown, with Figure 16 The only difference between the illustrated electronic device 100 and the first radiator 210 and the second radiator 220 is their relative positions. Figure 16 In the illustrated electronic device 100, the first radiator 210 and the second radiator 220 at least partially overlap along a first direction. Figure 24 In the electronic device 100 shown, the first radiator 210 and the second radiator 220 do not overlap along the first direction, and the first gap at the second position 282 and the second gap at the third position 283 overlap at least partially along the first direction. When the radiator acts as a parasitic branch, energy can be coupled through the electric field at the gap to generate parasitic resonance.

[0231] Figures 25 to 28 yes Figure 24 The simulation results of the antenna in the electronic device are shown. Among them, Figure 25 yes Figure 24 The simulation results of the S-parameters of the second antenna when the first radiator in the electronic device is a parasitic branch are shown. Figure 26 yes Figure 24 The system efficiency and radiation efficiency of the second antenna when the first radiator in the electronic device is a parasitic branch. Figure 27 yes Figure 24 The simulation results of the S-parameters of the first antenna when the second radiator in the electronic device is a parasitic stub are shown. Figure 28 yes Figure 24 The system efficiency and radiation efficiency of the first antenna when the second radiator in the electronic device is a parasitic branch.

[0232] It should be understood that, for the sake of brevity, in Figure 28 The electronic device shown is illustrated using only one example: the first antenna operates in a frequency band that includes at least a portion of the MB frequency band, and the second antenna operates in a frequency band that includes the satellite frequency band.

[0233] like Figure 25 As shown, when electronic devices communicate only through the second antenna (the first antenna is not working and the second antenna is working), the first radiator, as a parasitic stub of the second antenna, will generate parasitic resonance near 2.3 GHz.

[0234] like Figure 26 As shown, in the satellite frequency band, when the first radiator acts as a parasitic branch, the radiation efficiency and system efficiency of the second antenna are improved by about 1.4 dB.

[0235] like Figure 27 As shown, when the electronic device communicates only through the first antenna (the second antenna is not working and the first antenna is working), the second radiator, as a parasitic branch of the first antenna, will generate a parasitic resonance near 1.85 GHz.

[0236] like Figure 28 As shown, in the MB band, when the second radiator acts as a parasitic branch, the radiation efficiency of the first ray and the system efficiency are improved by about 1.1 dB.

[0237] Figure 29 This is a schematic diagram of a foldable electronic device 100 provided in an embodiment of this application.

[0238] like Figure 29 As shown, the electronic device 100 may further include a third housing 274 and a second rotating shaft 275. The second rotating shaft 275 is located between the first housing 271 and the third housing 274, and the second rotating shaft 275 is rotatably connected to the first housing 271 and the third housing 274 respectively, so that the first housing 271 and the third housing 274 can rotate relative to each other.

[0239] The first housing 271 includes a first frame 2710, the second housing 272 includes a second frame 2720, and the third housing 274 may include a third frame 2740.

[0240] The first border 2710 includes a first position 281 and a second position 282. The second border 2720 includes a third position 283 and a fourth position 284. The first radiator 210 is the conductive portion between the first position 281 and the second position 282. The second radiator 220 is the conductive portion between the third position 283 and the fourth position 284.

[0241] It should be understood that the above embodiments are only illustrated by the example of a foldable electronic device 100 comprising only two housings (a two-fold electronic device). In actual production or design, the technical solutions provided in the embodiments of this application can also be applied to devices comprising multiple housings (multi-fold electronic devices). Figure 25 As shown, the foldable electronic device 100, which includes three housings, is used as an example for illustration.

[0242] For the sake of brevity, in Figure 25 In the illustrated electronic device 100, only the portion of the first radiator 210 including the first frame 2710 and the portion of the second radiator 220 including the second frame 2720 are used as examples for illustration. In actual production or design, the first radiator 210 and the second radiator 220 can also be set in other positions, for example, the first radiator 210 includes the portion of the third frame 2740 and the second radiator 220 includes the second frame 2720. This application embodiment does not limit this.

[0243] In one embodiment, the first frame 2710 is coupled to the floor at a first position 281, and the first frame 2710 has a first gap at a second position 282. In another embodiment, the second frame 2720 has a second gap at a third position 283, and the second frame 2720 is coupled to the floor at a fourth position 284.

[0244] like Figure 25 As shown, when the electronic device 100 is in a folded state, the first gap and the second gap partially overlap along the first direction, and the first radiator 210 and the second radiator 220 do not overlap along the first direction. The first direction is the thickness direction of the electronic device 100, for example, the z-direction.

[0245] It should be understood that, for the sake of brevity, the embodiments of this application are only described with the radiators in the first antenna 201 and the second antenna 202 operating in quarter-wavelength mode as an example. In actual applications, the first antenna 201 and the second antenna 202 can also operate in other modes. For example, the first frame 2710 has a gap at the first position and the second position 282, and the first end and the second end of the first radiator 210 are both open ends, operating in half-wavelength mode.

[0246] In one embodiment, when the first radiator 210 operates in quarter-wavelength mode, the length L1 of the first border 2710 between the first position 281 and the second position 282 and the length L2 of the second border 2720 between the third position 283 and the fourth position 284 satisfy: 0.5 L2≤L1≤L2.

[0247] In one embodiment, when the first radiator 210 operates in half-wavelength mode, the length L1 of the first border 2710 between the first position 281 and the second position 282 and the length L2 of the second border 2720 between the third position 283 and the fourth position 284 satisfy: L2 ≤ L1 ≤ 1.5 L2.

[0248] In one embodiment, the electronic device 100 may further include a third antenna 301. The third antenna 301 includes a third radiator 310. The second frame 2720 includes a fifth position 285, and the third position 283 is located between the fourth position 284 and the fifth position 285. The third radiator 310 is the conductive portion between the third position 283 and the fifth position 285.

[0249] In one embodiment, the second frame 2720 is coupled to the floor at the fifth position 285.

[0250] In one embodiment, when the electronic device 100 is in a folded state, the first radiator 210 and the third radiator 310 partially overlap along a first direction.

[0251] In one embodiment, when the first radiator 210 operates in quarter-wavelength mode, the length L1 of the first radiator (the first border 2710 between the first position 281 and the second position 282) and the length L3 of the third radiator (the second border 2720 between the third position 283 and the fifth position 285) satisfy: L3 ≤ L1 ≤ 2 L3.

[0252] In one embodiment, when the first radiator 210 operates in half-wavelength mode, the length L1 of the first radiator (the first border 2710 between the first position 281 and the second position 282) and the length L3 of the third radiator (the second border 2720 between the third position 283 and the fifth position 285) satisfy: 2 L3≤L1≤3 L3.

[0253] In one embodiment, the electronic device 100 may further include a fourth antenna 302. The fourth antenna 302 includes a fourth radiator 320. The second frame 2720 includes a sixth position 286 and a seventh position 287, where the sixth position 286 is located between the fourth position 284 and the seventh position 287, and the fourth position 284 is located between the third position 283 and the sixth position 286. The fourth radiator 320 is the conductive portion between the sixth position 286 and the seventh position 287.

[0254] In one embodiment, the second frame 2720 has a third gap at a sixth position 286, and the second frame 2720 is coupled to the floor at a seventh position 287.

[0255] In one embodiment, when the first radiator 210 operates in quarter-wavelength mode, the length L1 of the first radiator (the first border 2710 between the first position 281 and the second position 282) and the length L4 of the fourth radiator (the second border 2720 between the sixth position 286 and the seventh position 287) satisfy: 0.7 L4≤L1≤1.5 L4.

[0256] In one embodiment, when the first radiator 210 operates in half-wavelength mode, the length L1 of the first radiator (the first border 2710 between the first position 281 and the second position 282) and the length L4 of the fourth radiator (the second border 2720 between the sixth position 286 and the seventh position 287) satisfy: L4 ≤ L1 ≤ 3. L4.

[0257] In one embodiment, the third frame 2740 may further include an eighth position 331 and a ninth position 332. The first antenna 201 includes a fifth radiator 341. The fifth radiator 341 is the conductive portion between the eighth position 331 and the ninth position 332.

[0258] In one embodiment, the third frame 2740 has a fourth slit at the eighth position 331. When the electronic device 100 is in a folded state, the first slit, the second slit, and the fourth slit at least partially overlap along the first direction.

[0259] It should be understood that the fifth radiator 341 can serve as a parasitic branch of the first antenna 201 to improve the radiation performance of the first antenna 201. For the sake of brevity, in this embodiment, only the example of the third frame 2740 having a gap at the ninth position 332 is used for illustration. In actual production or design, the third frame 2740 at the ninth position 332 can also be coupled to the floor.

[0260] In one embodiment, the third frame 2740 further includes a first connection point 212. The first connection point 212 is located between the eighth position 331 and the ninth position 332. The electronic device 100 also includes a fifth switch. A first port of the fifth switch is coupled to the ground, and a second port of the fifth switch is coupled to the first connection point 212. The fifth port of the controller is electrically connected to the control port of the fifth switch to control the switching state of the fifth switch. In one embodiment, at least one electronic component is electrically connected between the second port of the fifth switch and the first connection point 212. In another embodiment, at least one electronic component is electrically connected between the first port of the fifth switch and the ground.

[0261] It should be understood that the fifth switch can be used to adjust the radiation characteristics of the fifth radiator 341, for example, it can be used to adjust the frequency of the parasitic resonance generated by the fifth radiator 341. In one embodiment, when the electronic device 100 operates through the first antenna 201, the fifth radiator 341 can be used to enhance the radiation characteristics (e.g., operating bandwidth) of the first antenna 201. When the electronic device 100 does not operate through the first antenna 201, the fifth radiator 341 can be used to enhance the radiation characteristics (e.g., operating bandwidth) of the second antenna 202 or the third antenna 301.

[0262] In one embodiment, the first frame 2710 may further include a tenth position 333, and a second position 282 located between the tenth position 333 and the first position 281. The first antenna 201 includes a sixth radiator 342. The sixth radiator 342 is the conductive portion between the second position 282 and the tenth position 333.

[0263] It should be understood that the sixth radiator 342 can serve as a parasitic branch of the first antenna 201 to improve the radiation performance of the first antenna 201. For the sake of brevity, in this embodiment, only the example of the first frame 2710 having a gap at the tenth position 333 is used for illustration. In actual production or design, the first frame 2710 at the tenth position 333 can also be coupled to the floor.

[0264] In one embodiment, the third frame 2740 further includes a second connection point 213. The second connection point 213 is located between the second position 282 and the tenth position 333. The electronic device 100 also includes a sixth switch. A first port of the sixth switch is coupled to the ground, and a second port of the sixth switch is coupled to the second connection point 213. The sixth port of the controller is electrically connected to the control port of the sixth switch to control the switching state of the sixth switch. In one embodiment, at least one electronic component is electrically connected between the second port of the sixth switch and the second connection point 213. In one embodiment, at least one electronic component is electrically connected between the first port of the sixth switch and the ground.

[0265] It should be understood that the sixth switch can be used to adjust the radiation characteristics of the sixth radiator 342, for example, it can be used to adjust the frequency of the parasitic resonance generated by the sixth radiator 342. In one embodiment, when the electronic device 100 operates through the first antenna 201, the sixth radiator 342 can be used to enhance the radiation characteristics (e.g., operating bandwidth) of the first antenna 201. When the electronic device 100 does not operate through the first antenna 201, the sixth radiator 342 can be used to enhance the radiation characteristics (e.g., operating bandwidth) of the second antenna 202 or the third antenna 301.

[0266] Figure 30 yes Figure 29 The system efficiency and radiation efficiency of the second antenna in the electronic device shown. Figure 31 yes Figure 29 The system efficiency and radiation efficiency of the third antenna in the electronic device shown.

[0267] It should be understood that, for the sake of brevity, in Figure 29 The electronic devices shown are illustrated using only the following examples: the first antenna operates in a frequency band that includes at least a portion of the satellite frequency band; the second antenna operates in a frequency band that includes the L1 band of GPS; and the third antenna operates in a frequency band that includes the WiFi frequency band.

[0268] like Figure 30As shown, when the electronic device uses only the second antenna (the first antenna is not working, the second antenna is working, and the third antenna is not working), compared to when no parasitic stubs are set and only the first radiator is used as a parasitic stub, the radiation efficiency of the second antenna is improved by about 0.7 dB. When the first radiator, the fifth radiator, and the sixth radiator are used as parasitic stubs, the radiation efficiency of the second antenna is improved by about 1.4 dB.

[0269] like Figure 31 As shown, when electronic devices communicate only through the second and third antennas (the first antenna is not working, the second antenna is not working, and the third antenna is working), compared to when no parasitic stubs are set, the radiation efficiency of the third antenna is improved by about 0.7 dB when the first, fifth, and sixth radiators are parasitic stubs.

[0270] Figure 32 This is a schematic diagram of an antenna switching method 400 provided in an embodiment of this application, which can be applied to the electronic device shown in the above embodiment.

[0271] S410, the controller receives a first signal, which indicates the operating status of the second antenna. For example, the operating status of the second antenna can be understood as whether the electronic device is communicating through the second antenna.

[0272] In one embodiment, the AP sends a first signal to the controller. In another embodiment, the electronic device may further include a SoC. The SoC includes the AP, the controller, and a first modem.

[0273] In one embodiment, when the second modem is directly electrically connected to the controller via a port, the second modem sends a first signal to the controller.

[0274] In one embodiment, the second modem sends a second signal to the AP, which may include the operating frequency band of the second antenna and service information.

[0275] S420, the controller determines the switching state of the first switch and the second switch based on the first signal.

[0276] In one embodiment, the controller can determine whether the electronic device is communicating through the second antenna based on a first signal. Based on whether the second antenna is communicating, the controller can switch the switching states of the first switch and the second switch. For example, when the first antenna operates in the cellular band and the second antenna operates in the WiFi band, and the electronic device is communicating through the second antenna, the controller can switch the switching states of the first switch and the second switch, making the first radiator a parasitic extension of the second antenna, thereby improving the radiation characteristics of the second antenna.

[0277] In one embodiment, after the controller determines the switching state of the first switch and the second switch based on the first signal, the method may further include: the controller sending a third signal to the switcher, the third signal being used to instruct the switcher to switch the first switch and the second switch to the switching state.

[0278] In one embodiment, the switch is an RF IC.

[0279] S430, the first modem sends a fourth signal to the controller, which indicates the operating status of the first antenna. For example, the operating status of the first antenna can be understood as whether the electronic device is communicating through the first antenna.

[0280] In one embodiment, the controller determines the switching states of the first switch and the second switch based on the first signal and the fourth signal.

[0281] In one embodiment, the fourth signal may include the operating frequency band of the first antenna and service information.

[0282] Figure 33 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0283] like Figure 33 As shown, the electronic device 100 includes a frame 11, a first antenna 410, a second antenna 420, and a floor 300.

[0284] At least a portion of the frame 11 is spaced apart from the floor 300.

[0285] The border 11 includes a first position 401, a second position 402, a third position 403, and a fourth position 404, which are sequentially arranged. The second position 402 and the third position 403 are located on the first side 131 of the border 11. In one embodiment, the first position 401 may be located on the second side 132, and the second side 132 intersects the first side 131 at an angle. In one embodiment, the fourth position 404 may be located on the third side 133, and the third side 133 intersects the first side 131 at an angle.

[0286] The first antenna 410 operates in a first frequency band. The first antenna 410 includes a first radiator 411. The first radiator 411 includes a conductive portion of a frame between a first position 401 and a second position 402.

[0287] The second antenna 420 operates in two frequency bands: a second frequency band and a third frequency band. The second antenna 420 includes a second radiator 421 and a first tuning circuit 431. The second radiator 421 includes a conductive portion of the frame 11 between a third position 403 and a fourth position 404. The second radiator 421 includes a first connection point 422, and the first tuning circuit 431 is coupled between the first connection point 422 and the ground plane 300. The first tuning circuit 431 can be used to switch the operating frequency band of the second antenna 420.

[0288] The first frequency band is the same as or adjacent to the second frequency band, and the first frequency band is neither the same as nor adjacent to the third frequency band. When the first antenna 410 operates in the first frequency band, the first tuning circuit 431 switches the operating frequency band of the second antenna 420 from the second frequency band to the third frequency band.

[0289] It should be understood that, according to the technical solution provided in the embodiments of this application, when the first antenna 410 operates in the first frequency band, the second antenna 420 operates in the second frequency band. Since the first and second frequency bands are the same or adjacent, and the second position 402 and the third position 403 are located on the first side 131 of the frame 11, the second antenna 420 interferes strongly with the first antenna 410, causing the radiation characteristics (e.g., radiation efficiency) of the first antenna 410 to deteriorate. However, when the first antenna 410 operates in the first frequency band, the second antenna 420 operates in the third frequency band, and the second antenna 420 will not interfere with the first antenna 410, thereby improving the radiation characteristics of the first antenna 410.

[0290] Meanwhile, the first tuning circuit 431 described in this application embodiment switches the operating frequency band of the second antenna 420 from the second frequency band to the third frequency band. This can be understood as the second antenna being able to resonate in the third frequency band, and the electronic device 100 being able to communicate with external devices in the third frequency band.

[0291] In one embodiment, the frame 11 can be coupled to the floor at a first position 401, a third position 403, and a fourth position 404. The frame 11 has a first gap at a second position 402. The first radiator 411 has a first end that is grounded (one end at the first position 401) and a second end that is open (one end at the second position 402). The second radiator 421 has both a first end and a second end that are grounded.

[0292] It should be understood that the structure of the first antenna 410 and the second antenna 420 can be determined according to actual production or design, and this application does not impose any restrictions on this.

[0293] In one embodiment, the second radiator 421 has a second slit. In one embodiment, the second slit may be located in the central region of the second radiator 421. The central region can be understood as the area within 10 mm of the center of the second radiator 421.

[0294] In one embodiment, the length of the border 11 between the second position 402 and the third position 403 can be less than or equal to three-half of the first wavelength. In another embodiment, the length of the border 11 between the second position 402 and the third position 403 can be less than or equal to the first wavelength. In yet another embodiment, the length of the border 11 between the second position 402 and the third position 403 can be less than or equal to half of the first wavelength. Here, the first wavelength is the wavelength corresponding to the first frequency band.

[0295] It should be understood that the wavelength corresponding to the first frequency band can be understood as the vacuum wavelength corresponding to the center frequency of the first frequency band. Since there is a certain correspondence between vacuum wavelength and dielectric wavelength, it is possible to convert from vacuum wavelength to dielectric wavelength, which will not be elaborated in detail in the embodiments of this application.

[0296] In one embodiment, the length of the border 11 between the second position 402 and the third position 403 may be less than or equal to 160 mm. In one embodiment, the length of the border 11 between the second position 402 and the third position 403 may be less than or equal to 120 mm. In one embodiment, the length of the border 11 between the second position 402 and the third position 403 may be less than or equal to 90 mm. In one embodiment, the length of the border 11 between the second position 402 and the third position 403 may be less than or equal to 75 mm.

[0297] In one embodiment, the first antenna 410 may include a first feed circuit 441. The first radiator 411 includes a first feed point, and the first feed circuit 441 is coupled to the first feed point to feed an electrical signal.

[0298] In one embodiment, the second antenna 420 may include a second feed circuit 442. The second radiator 421 includes a second feed point, and the second feed circuit 442 is coupled to the second feed point to feed in an electrical signal.

[0299] In one embodiment, the first tuning circuit 431 is a circuit including a switch. The switch can be used to switch electronic components coupled to the first connection point 422 with different resistance, capacitance, or inductance values ​​when different circuit states are being used. Alternatively, the switch can be in an open state, preventing the electronic components from being coupled to the first connection point 422. Alternatively, the switch can directly couple the ground plane 300 to the first connection point 422, without any electronic components between the ground plane 300 and the first connection point 422. For the sake of brevity, the tuning circuits in the embodiments of this application can all be understood accordingly and will not be described in detail further.

[0300] In one embodiment, the first antenna 410 may include a second tuning circuit 432, which can be used to switch the operating frequency band of the first antenna 410. The first radiator 411 includes a second connection point 412, and the second tuning circuit 432 is coupled between the second connection point 412 and the ground 300.

[0301] In one embodiment, the operating frequency band of the first antenna 410 also includes a fourth frequency band. The fourth frequency band is neither the same as nor adjacent to the second frequency band. When the second antenna 420 operates in the second frequency band, the second tuning circuit 432 switches the operating frequency band of the first antenna 410 from the first frequency band to the fourth frequency band.

[0302] It should be understood that when the second antenna 420 operates in the second frequency band, the first antenna 410 operates in the fourth frequency band. The first antenna 410 will not interfere with the second antenna 420, thereby improving the radiation characteristics of the second antenna 420.

[0303] In one embodiment, the electronic device 100 may further include an access point (AP) and a first modem. The AP is electrically connected to the first modem, and the first modem is electrically connected to a first tuning circuit 431.

[0304] When the first antenna 410 is operating in the first frequency band, the second antenna 420 switches its operating frequency band from the second frequency band to the third frequency band by the first tuning circuit 431, including: the AP sends switching information to the first modem, the switching information indicating that the operating frequency band of the second antenna 420 is the third frequency band, and the first modem controls the first tuning circuit 431 to switch the operating frequency band of the second antenna 420 from the second frequency band to the third frequency band according to the switching information.

[0305] In one embodiment, the electronic device 100 may further include a second modem. The AP is electrically connected to the second modem, and the second modem is electrically connected to the second tuning circuit 432.

[0306] When the second antenna 420 is operating in the second frequency band, the first antenna 410 switches its operating frequency band from the first frequency band to the fourth frequency band by the second tuning circuit 432, including: the AP sends a switching information to the second modem, the switching information indicating that the operating frequency band of the first antenna 410 is the fourth frequency band, and the second modem controls the second tuning circuit 432 to switch the operating frequency band of the first antenna 410 from the first frequency band to the fourth frequency band according to the switching information.

[0307] In one embodiment, the first frequency band and the second frequency band can both be part of the communication frequency band in the cellular network, for example, part of the communication frequency band in the low frequency band (698MHz-960MHz), or part of the communication frequency band in the mid frequency band (1710MHz-2170MHz), or part of the communication frequency band in the high frequency band (2300MHz-2690MHz).

[0308] In one embodiment, the first frequency band and the second frequency band can be communication frequency bands in different communication systems. The first frequency band includes a portion of the communication frequency bands in non-cellular networks. The second frequency band includes a portion of the communication frequency bands in cellular networks, for example, a portion of the communication frequency bands in the mid-frequency band (1710MHz-2170MHz), or a portion of the communication frequency bands in the high-frequency band (2300MHz-2690MHz).

[0309] In one embodiment, the first frequency band is the 2.4 GHz band of WiFi (2.4-2.485 GHz), and the second frequency band is B40 (2.3-2.4 GHz) or B41 (2.496-2.69 GHz) in LTE. In another embodiment, the second frequency band is the L1 band of GPS (1578.42±1.023 MHz), and the second frequency band is B3 (1.71-1.785 GHz) in LTE.

[0310] In one embodiment, the first modem can be used in a non-cellular network. The second modem can be used in a cellular network.

[0311] Figure 34 and Figure 35 yes Figure 33 The simulation results of the antenna in the electronic device 100 shown are presented. Among them, Figure 34 yes Figure 33 The simulation results of the S-parameters of the first and second antennas are shown. Figure 35 yes Figure 33 The simulation results for the radiation efficiency of the first ray are shown.

[0312] It should be understood that, for the sake of brevity, this application embodiment only uses the example of the first frequency band including the WiFi frequency band (2.4-2.485GHz) and the second frequency band including B41 in LTE (2.496-2.69GHz).

[0313] like Figure 34 As shown, when the second antenna operates in the second frequency band, it can resonate around 2.7 GHz, and the corresponding resonant frequency band can include B41 (2.496-2.69 GHz) in LTE. Meanwhile, when the second antenna operates in the first or second frequency band, it has little impact on the resonance generated by the first antenna around 2.4 GHz.

[0314] like Figure 35 As shown, when the first antenna operates in the first frequency band and the second antenna operates in the second frequency band, the radiation efficiency of the first antenna is -5.8dB. However, when the first antenna operates in the first frequency band and the second antenna operates in the third frequency band, the radiation efficiency of the first antenna is -4.2dB, representing an improvement of approximately 1.6dB.

[0315] Figure 36 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0316] like Figure 36 As shown, the second position 402 and the third position 403 are the same (overlap), and the length of the border 11 between the second position 402 and the third position 403 is zero.

[0317] The frame 11 is coupled to the floor 300 at the first position 401. The frame 11 has a first gap and a second gap at the second position 402 and the fourth position 404.

[0318] In one embodiment, the first position 401, the second position 402, the third position 403, and the fourth position 404 are all located on the second side 132 of the border 11.

[0319] In one embodiment, the first radiator 411 has a first end that is grounded (one end at the first position 401) and a second end that is open (one end at the second position 402). The second radiator 421 has a first end that is grounded (one end at the third position 403) and a second end that is open (one end at the fourth position 404). In one embodiment, the second end of the first radiator 411 and the first end of the second radiator 421 are opposite to and in complementary contact.

[0320] It should be understood that Figure 36 The electronic device 100 shown is Figure 33 The only difference between the electronic devices 100 shown is the structure of the second antenna 420 and the first position 401, the second position 402, the third position 403, and the fourth position 404.

[0321] Figure 36 The electronic device 100 shown is Figure 33 Similar parts of the electronic device 100 shown will not be described in detail, such as the relationship between the first frequency band, the second frequency band, and the third frequency band; the relationship between the tuning circuit, the modem, and the AP; and the structure of the tuning circuit.

[0322] Figure 37 yes Figure 36 The simulation results for the radiation efficiency of the first ray are shown.

[0323] It should be understood that, for the sake of brevity, this application embodiment only uses the example of the first frequency band including the WiFi frequency band (2.4-2.485GHz) and the second frequency band including B41 in LTE (2.496-2.69GHz).

[0324] like Figure 37 As shown, when the first antenna operates in the first frequency band and the second antenna operates in the second frequency band, the radiation efficiency of the first antenna is -4.1 dB. However, when the first antenna operates in the first frequency band and the second antenna operates in the third frequency band, the radiation efficiency of the first antenna is -3.1 dB, representing an improvement of approximately 1 dB.

[0325] Figure 38 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0326] like Figure 38 As shown, the electronic device 100 includes a frame 11, a first antenna 410, a second antenna 420, and a floor 300.

[0327] At least a portion of the frame 11 is spaced apart from the floor 300.

[0328] The frame 11 includes a first position 401, a second position 402, and a third position 403 arranged sequentially. The frame 11 is coupled to the floor 300 at the second position 402.

[0329] The first antenna 410 operates in a first frequency band. The first antenna 410 includes a first radiator 411. The first radiator 411 includes a conductive portion of a frame between a first position 401 and a second position 402.

[0330] The second antenna 420 operates in two frequency bands: a second frequency band and a third frequency band. The second antenna 420 includes a second radiator 421 and a first tuning circuit 431. The second radiator 421 includes a conductive portion of a frame 11 between a second position 402 and a third position 403. The second radiator 421 includes a first connection point 422, and the first tuning circuit 431 is coupled between the first connection point 422 and the ground plane 300. The first tuning circuit 431 can be used to switch the operating frequency band of the second antenna 420.

[0331] The first frequency band and the second frequency band are the same or adjacent, and the first frequency band and the third frequency band are neither the same nor adjacent. When the first antenna 410 operates in the first frequency band, the first tuning circuit 431 switches the operating frequency band of the second antenna 420 from the third frequency band to the second frequency band.

[0332] It should be understood that, according to the technical solution provided in the embodiments of this application, when the first antenna 410 operates in the first frequency band, the second antenna 420 operates in the second frequency band. Since the first frequency band and the second frequency band are the same or adjacent, when the first radiator 411 generates the main resonance, the second radiator 421 can be excited to generate the parasitic resonance, thereby improving the radiation characteristics of the first antenna 410 (e.g., radiation efficiency, operating bandwidth).

[0333] In one embodiment, the length of the border 11 between the first position 401 and the second position 402 is less than the length of the border 11 between the second position 402 and the third position 403.

[0334] In one embodiment, three-half of the length of the border 11 between the first position 401 and the second position 402 is less than or equal to the length of the border 11 between the second position 402 and the third position 403.

[0335] In one embodiment, the first and second frequency bands may include at least a portion of the middle band (MB) (1710MHz-2170MHz) or at least a portion of the high band (HB) (2300MHz-2690MHz). The third frequency band may include at least a portion of the low band (LB) (698MHz-960MHz).

[0336] It should be understood that the third frequency band can be generated by the quarter-wavelength mode (fundamental mode) of the second radiator 421, and the second frequency band can be generated by the three-quarter-wavelength mode (higher-order mode) of the second radiator 421. When the first antenna 410 operates in the intermediate frequency band or the high frequency band, the higher-order mode (e.g., the three-quarter-wavelength mode) of the second antenna 420 can be excited by coupling to generate parasitic resonance, thereby improving the radiation characteristics of the first antenna (e.g., radiation efficiency, operating bandwidth).

[0337] In one embodiment, the resonant frequency of the parasitic resonance can be greater than or less than the resonant frequency of the main resonance, depending on the production or design.

[0338] In one embodiment, the difference between the resonant frequency of the parasitic resonance and the resonant frequency of the main resonance is less than or equal to 200MHz.

[0339] In one embodiment, the frame 11 can be coupled to the floor at a first position 401. The frame 11 has a first gap at a third position 403. The first and second ends of the first radiator 411 are both grounded. The first end of the second radiator 421 is a grounded end (one end at the second position 402), and the second end is an open end (one end at the third position 403).

[0340] In one embodiment, the first radiator 411 has a second slit. In one embodiment, the second slit may be located in the central region of the first radiator 411. The central region can be understood as the area within 10 mm of the center of the first radiator 411.

[0341] In one embodiment, the first antenna 410 may include a first feed circuit 441. The first radiator 411 includes a first feed point, and the first feed circuit 441 is coupled to the first feed point to feed an electrical signal.

[0342] In one embodiment, the second antenna 420 may include a second feed circuit 442. The second radiator 421 includes a second feed point, and the second feed circuit 442 is coupled to the second feed point to feed in an electrical signal.

[0343] In one embodiment, the first antenna 410 may include a second tuning circuit 432, which can be used to switch the resonant frequency of the main resonance generated by the first antenna 410. The first radiator 411 includes a second connection point 412, and the second tuning circuit 432 is coupled between the second connection point 412 and the ground plane 300.

[0344] In one embodiment, the electronic device 100 may further include a modem. The modem is electrically connected to the first tuning circuit 431.

[0345] When the first antenna 410 operates in the first frequency band, the second antenna 420 switches its operating frequency band from the third frequency band to the second frequency band by the first tuning circuit 431, including: the modem controls the first tuning circuit 431 to switch the operating frequency band of the second antenna 420 from the third frequency band to the second frequency band.

[0346] It should be understood that the solutions provided in the embodiments of this application can all be applied to the electronic device 100. In one embodiment, such as Figure 39 As shown, the electronic device 100 may simultaneously include Figure 33 , Figure 36 and Figure 38 The antenna shown in this application is not limited to any particular type and can be adjusted according to actual production or design.

[0347] Figure 40 yes Figure 38 The simulation results for the radiation efficiency of the first ray are shown.

[0348] It should be understood that, for the sake of brevity, this application embodiment only uses the example of the first frequency band including the high-frequency band (2300MHz-2690MHz) for illustration.

[0349] like Figure 40 As shown, when the first antenna operates in the first frequency band, the second antenna operates in the second frequency band. In the high frequency band, the radiation efficiency of the first antenna is improved by an average of about 0.5 dB.

[0350] Figure 41 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0351] like Figure 41 As shown, the electronic device 100 may include a first antenna 510 and a second antenna 520.

[0352] It should be understood that the embodiments of this application do not limit the structure of the first antenna 510 and the second antenna 520, and the first antenna 510 and the second antenna 520 may be similar to the first antenna and the second antenna shown in the embodiments of this application. In one embodiment, the first antenna 510 and the second antenna 520 may be similar to Figure 6 , Figure 11 , Figure 16 , Figure 19 , Figure 24 , Figure 29 , Figure 33 , Figure 36 or Figure 38 The first and second antennas shown in the diagram will not be described in detail for the sake of brevity.

[0353] Meanwhile, similar first and second antennas can be understood as having the same boundary conditions for the radiating elements, as well as the same relative positional relationship between the first and second antennas. The same boundary conditions can include whether the radiating elements include the same grounding / open terminals.

[0354] The first antenna 510 includes a first tuning circuit 511. In one embodiment, the first tuning circuit 511 may be coupled between the radiator of the first antenna 510 and the ground. The first tuning circuit 511 may be used to switch the resonant frequency of the resonance generated by the first antenna 510, thereby enabling the first antenna 510 to operate in different communication frequency bands.

[0355] The second antenna 520 includes a second tuning circuit 521. The second tuning circuit 521 can be coupled between the radiator of the second antenna 520 and the ground. The second tuning circuit 521 can be used to switch the resonant frequency of the resonance generated by the second antenna 520, thereby enabling the second antenna 520 to operate in different communication frequency bands.

[0356] The electronic device 100 may further include a switch 531, a first modem 541, and a second modem 542. In one embodiment, the first modem 541 may be used to process electrical signals transmitted or received by the first antenna 510. In one embodiment, the second modem 542 may be used to process electrical signals transmitted or received by the second antenna 520.

[0357] The connection port of switch 531 is electrically connected to the first tuning circuit 511.

[0358] The first port of the first modem 541 is electrically connected to the control port of the switch 531. The second port of the first modem 541 is electrically connected to the first switching port of the switch 531.

[0359] The first port of the second modem 542 is electrically connected to the second switching port of the switch 531. The second port of the second modem 542 is electrically connected to the second tuning circuit 521.

[0360] In one embodiment, the control port of switch 531 can be used to switch the electrical connection state between the connection port of switch 531 and the first switching port, or to control the electrical connection state between the connection port of switch 531 and the second switching port.

[0361] It should be understood that, according to the technical solutions provided in the embodiments of this application, when the electronic device 100 is in different communication states, the antenna in the idle state (not working) of the first antenna 510 and the second antenna 520 can improve the radiation performance (e.g., radiation efficiency) of the working antenna, thereby enabling the electronic device 100 to have better communication quality.

[0362] When the first antenna 510 and the second antenna 520 operate simultaneously, the first modem 541 controls the switch 531 via the first port to electrically connect the connection port to the first switching port. Since the connection port of switch 531 is electrically connected to the first switching port, the first modem 541 can control the first tuning circuit 511, causing the first antenna 510 to operate in the corresponding operating frequency band. The second modem 542 controls the second tuning circuit 521, causing the second antenna 520 to operate in the corresponding operating frequency band.

[0363] When the first antenna 510 is not working and the second antenna 520 is working, the second modem 542 controls the second tuning circuit 521 to make the second antenna 520 operate in the corresponding operating frequency band. The first modem 541 controls the switch 531 through the first port to electrically connect the connection port to the second switching port. Since the connection port of the switch 531 is electrically connected to the second switching port, the second modem 542 can control the first tuning circuit 511, so that the radiator of the first antenna 510 can act as a parasitic branch of the second antenna 520, which can be used to improve the radiation performance (e.g., radiation efficiency) of the second antenna 520.

[0364] Simultaneously, when the first antenna 510 serves as a parasitic extension of the second antenna 520, and the first antenna 510 needs to perform listening, the first modem 541 electrically connects the connection port to the first switching port via the first port control switch 531. The first modem 541 then controls the first tuning circuit 511 to enable the first antenna 510 to perform listening in the corresponding operating frequency band. After listening is completed, the first modem 541 electrically connects the connection port to the second switching port via the first port control switch 531, thus enabling the radiator of the first antenna 510 to serve as a parasitic extension of the second antenna 520.

[0365] When the first antenna 510 is active and the second antenna 520 is inactive, the first modem 541 controls the switch 531 via the first port to electrically connect the connection port to the first switching port. Since the connection port of switch 531 is electrically connected to the first switching port, the first modem 541 can control the first tuning circuit 511, causing the first antenna 510 to operate in the corresponding frequency band. The second modem 542 controls the second tuning circuit 521 to make the radiator of the second antenna 520 a parasitic stub of the first antenna 510, which can be used to improve the radiation performance (e.g., radiation efficiency) of the first antenna 510.

[0366] Simultaneously, when the second antenna 520 is used as a parasitic stub of the first antenna 510, and the second antenna 520 needs to perform listening, the second modem 542 controls the second tuning circuit 521 to make the second antenna 520 perform listening in the corresponding operating frequency band. After the listening is completed, the second modem 542 controls the second tuning circuit 521 to make the radiator of the second antenna 520 a parasitic stub of the first antenna 510.

[0367] In one embodiment, the operating frequency band of the first antenna 510 may be at least a portion of the communication frequency bands in a non-cellular network, such as the WiFi band, BT band, GPS band, or may include satellite communication frequency bands. In one embodiment, the operating frequency band of the second antenna 520 may include at least a portion of the communication frequency bands in a cellular network, such as B1 (1920MHz–1980MHz), B3 (1710MHz–1785MHz), and B7 (2500MHz–2570MHz) in LTE.

[0368] In one embodiment, the first antenna 510 operates in the 2.4 GHz band of WiFi or the L1 band of GPS. The second antenna 520 operates in a communication band within the range of 1710 MHz to 2170 MHz, or a communication band within the range of 2300 MHz to 2690 MHz.

[0369] In one embodiment, the electronic device 100 further includes an AP 540 and a controller 530. A first port of the AP 540 is electrically connected to a first port of the controller 530, and a second port of the AP 540 is electrically connected to a third port of a first modem 541. A second port of the controller 530 is electrically connected to a third port of a second modem 542.

[0370] In one embodiment, the controller 530 can be a microcontroller unit (MCU).

[0371] It should be understood that AP540 can be used to send the operating status of the first antenna 510 to controller 530. For example, the operating status of the first antenna 510 can be understood as whether electronic device 100 is communicating through the first antenna 510. The second modem 542 can be used to send the operating status of the second antenna 520 to controller 530. For example, the operating status of the second antenna can be understood as whether electronic device 100 is communicating through the second antenna 520.

[0372] When the electronic device 100 communicates only through one of the first antenna 510 and the second antenna 520, the controller 530 can control the idle (non-working) antenna to improve the radiation performance (e.g., radiation efficiency) of the working antenna according to the working state of the first antenna 510 and the second antenna 520, thereby enabling the electronic device 100 to have better communication quality.

[0373] In one embodiment, AP540 sends a first signal to controller 530, which determines whether the electronic device is communicating through the first antenna 510. Second modem 542 sends a second signal to controller 530, which determines whether the electronic device is communicating through the second antenna 520. Controller 530 determines the operating states of the first tuning circuit 511 and the second tuning circuit 521 based on the first and second signals, thereby causing the antennas to resonate accordingly.

[0374] In one embodiment, the first signal may include the operating frequency band of the first antenna 510 and service information. The second signal may include the operating frequency band of the second antenna 520 and service information.

[0375] In one embodiment, the controller 530 sends a third signal to the second modem 542. The second modem 542 determines the operating state of the first tuning circuit 511 and the second tuning circuit 521 based on the third signal.

[0376] In one embodiment, the electronic device includes a first chip, which includes a controller 530 and a second modem 542. The controller 530 and the second modem 542 are integrated within the same chip.

[0377] It should be understood that if the controller 530 and the second modem 542 are configured independently and connected via an interface, it will cause timing errors in the transmitted electrical signals, requiring complex processing. However, when the controller 530 and the second modem 542 are integrated into the same chip (the first chip includes both the controller 530 and the second modem 542), the controller 530 and the second modem 542 are hardware-bonded via circuitry, preventing timing errors in the transmitted electrical signals.

[0378] In one embodiment, the electronic device 100 may further include a system-on-chip (SoC). The SoC may include an AP540, a controller530, ​​and a second modem 262, all of which are integrated within the SoC.

[0379] Figure 42 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0380] like Figure 42 As shown, the electronic device 100 also includes a switch 532.

[0381] The connection port of switch 532 is electrically connected to the second tuning circuit 521. The first switching port of switch 532 is electrically connected to the fourth port of the first modem 541. The second switching port of switch 532 is electrically connected to the second port of the second modem 542. The fourth port of the second modem 542 is electrically connected to the control port of switch 532.

[0382] In one embodiment, the control port of switch 532 can be used to switch the electrical connection state between the connection port of switch 532 and the first switching port and the second switching port.

[0383] It should be understood that Figure 42 The electronic device 100 shown is Figure 41 The only difference in the electronic device 100 shown is the switch 532.

[0384] exist Figure 41 In the electronic device 100 shown, the first modem 541 can electrically connect the connection port of the switch 531 to the first switching port or the second switching port through the control port of the switch 531, thereby enabling the first modem 541 or the second modem 542 to control the first tuning circuit 511.

[0385] And in Figure 42 In the electronic device 100 shown, in Figure 41 A switch 532 is provided on the basis of the electronic device 100 shown. The second modem 542 can make the connection port of the switch 532 electrically connected to the first switching port or the second switching port through the control port of the switch 532, so that the first modem 541 or the second modem 542 controls the second tuning circuit 521.

[0386] Therefore, in Figure 42 In the electronic device 100 shown, either the first modem 541 or the second modem 542 can simultaneously control the first tuning circuit 511 and the second tuning circuit 521.

[0387] When the first antenna 510 and the second antenna 520 operate simultaneously, the first modem 541 controls the switch 531 via its first port to electrically connect the connection port of switch 531 to the first switching port, and the second modem 542 controls the switch 532 via its fourth port to electrically connect the connection port of switch 532 to the second switching port. The first modem 541 can control the first tuning circuit 511 to make the first antenna 510 operate in the corresponding operating frequency band. The second modem 542 can control the second tuning circuit 521 to make the second antenna 520 operate in the corresponding operating frequency band.

[0388] When the first antenna 510 is not working and the second antenna 520 is working, the first modem 541 controls the switch 531 through the first port to electrically connect the connection port of the switch 531 to the second switching port, and the second modem 542 controls the switch 532 through the fourth port to electrically connect the connection port of the switch 532 to the second switching port. The second modem 542 can simultaneously control the first tuning circuit 511 and the second tuning circuit 521, so that the radiator of the first antenna 510 can be used as a parasitic branch of the second antenna 520 to improve the radiation performance (e.g., radiation efficiency) of the second antenna 520.

[0389] Simultaneously, when the first antenna 510 serves as a parasitic extension of the second antenna 520, and the first antenna 510 needs to perform listening operations, the first modem 541 controls the first port switch 531 to electrically connect the connection port of the switch 531 to the first switching port. The first modem 541 then controls the first tuning circuit 511 to enable the first antenna 510 to perform listening operations in the corresponding operating frequency band. After listening operations are completed, the first modem 541 controls the first port switch 531 to electrically connect the connection port of the switch 531 to the second switching port, thus enabling the radiator of the first antenna 510 to serve as a parasitic extension of the second antenna 520.

[0390] When the first antenna 510 is working and the second antenna 520 is not working, the first modem 541 controls the switch 531 through the first port to electrically connect the connection port of the switch 531 to the first switching port, and the second modem 542 controls the switch 532 through the fourth port to electrically connect the connection port of the switch 532 to the first switching port. The first modem 541 can simultaneously control the first tuning circuit 511 and the second tuning circuit 521, so that the radiator of the second antenna 520 can be used as a parasitic branch of the first antenna 510 to improve the radiation performance (e.g., radiation efficiency) of the first antenna 510.

[0391] Simultaneously, when the second antenna 520 serves as a parasitic stub of the first antenna 510, and the second antenna 520 needs to perform listening operations, the second modem 542 controls the switch 532 via the fourth port to electrically connect the connection port of the switch 532 to the second switching port. The second modem 542 then controls the second tuning circuit 521 to enable the second antenna 520 to perform listening operations in the corresponding operating frequency band. After listening operations are completed, the second modem 542 controls the switch 532 via the fourth port to electrically connect the connection port of the switch 532 to the first switching port, thus enabling the radiator of the second antenna 520 to serve as a parasitic stub of the first antenna 510.

[0392] Figure 42 The electronic device 100 shown is Figure 41Similar parts of the electronic device 100 shown will not be described in detail. For example, when the electronic device 100 is in different communication states, the idle (non-working) antenna can improve the radiation performance of the working antenna; the operating frequency band of the first antenna 510; the operating frequency band of the second antenna 520; the electronic device 100 includes AP 540 and controller 530, etc.

[0393] Figure 43 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0394] like Figure 43 As shown, the electronic device 100 may include a first antenna, a second antenna 520, a first modem 541, and a second modem 542.

[0395] The first antenna 510 includes a first tuning circuit 511. In one embodiment, the first tuning circuit 511 may be coupled between the radiator of the first antenna 510 and the ground. The first tuning circuit 511 may be used to switch the resonant frequency of the resonance generated by the first antenna 510, thereby enabling the first antenna 510 to operate in different communication frequency bands.

[0396] The second antenna 520 includes a second tuning circuit 521. The second tuning circuit 521 can be coupled between the radiator of the second antenna 520 and the ground. The second tuning circuit 521 can be used to switch the resonant frequency of the resonance generated by the second antenna 520, thereby enabling the second antenna 520 to operate in different communication frequency bands.

[0397] In one embodiment, the first modem 541 can be used to process electrical signals transmitted or received by the first antenna 510. In one embodiment, the second modem 542 can be used to process electrical signals transmitted or received by the second antenna 520.

[0398] The first port of the first modem 541 is electrically connected to the first port of the second modem 542.

[0399] The second port of the second modem 542 is electrically connected to the first tuning circuit 511. The third port of the second modem 542 is electrically connected to the second tuning circuit 521.

[0400] It should be understood that, according to the technical solutions provided in the embodiments of this application, when the electronic device 100 is in different communication states, the antenna in the idle state (not working) of the first antenna 510 and the second antenna 520 can improve the radiation performance (e.g., radiation efficiency) of the working antenna, thereby enabling the electronic device 100 to have better communication quality.

[0401] It should be understood that Figure 43 The electronic device 100 shown is Figure 41 The only difference in the electronic device 100 shown is that it does not have a switch 531.

[0402] exist Figure 41 In the electronic device 100 shown, the first modem 541 can electrically connect the connection port of the switch 531 to the first switching port or the second switching port through the control port of the switch 531, thereby enabling the first modem 541 or the second modem 542 to control the first tuning circuit 511.

[0403] And in Figure 43 In the electronic device 100 shown, there is no switch 531, and the first tuning circuit 511 and the second tuning circuit 521 are controlled by the second modem 542.

[0404] When the first antenna 510 and the second antenna 520 are working simultaneously, the second modem 542 can control the first tuning circuit 511 and the second tuning circuit 521 to make the first antenna 510 and the second antenna 520 work in the corresponding operating frequency band.

[0405] When the first antenna 510 is not working and the second antenna 520 is working, the second modem 542 can control the first tuning circuit 511 and the second tuning circuit 521 to make the second antenna 520 work in the corresponding operating frequency band. The radiator of the first antenna 510, as a parasitic branch of the second antenna 520, can be used to improve the radiation performance (e.g., radiation efficiency) of the second antenna 520.

[0406] Simultaneously, when the first antenna 510 is used as a parasitic stub of the second antenna 520, and the first antenna 510 needs to listen, the first modem 541 sends an electrical signal to the second modem 542. This electrical signal instructs the first antenna 510 to listen, requiring the switching of the first tuning circuit 511. The second modem 542 controls the first tuning circuit 511 to make the first antenna 510 listen in the corresponding operating frequency band. After listening is completed, the second modem 542 controls the first tuning circuit 511 to make the radiator of the first antenna 510 a parasitic stub of the second antenna 520.

[0407] When the first antenna 510 is working and the second antenna 520 is not working, the second modem 542 can control the first tuning circuit 511 and the second tuning circuit 521 to make the first antenna 510 work in the corresponding operating frequency band. The radiator of the second antenna 520, as a parasitic branch of the first antenna 510, can be used to improve the radiation performance (e.g., radiation efficiency) of the first antenna 510.

[0408] Simultaneously, when the second antenna 520 is used as a parasitic stub of the first antenna 510, and the second antenna 520 needs to perform listening, the second modem 542 controls the second tuning circuit 521 to make the second antenna 520 perform listening in the corresponding operating frequency band. After the listening is completed, the second modem 542 controls the second tuning circuit 521 to make the radiator of the second antenna 520 a parasitic stub of the first antenna 510.

[0409] Figure 43 The electronic device 100 shown is Figure 41 Similar parts of the electronic device 100 shown will not be described in detail. For example, when the electronic device 100 is in different communication states, the idle (non-working) antenna can improve the radiation performance of the working antenna; the operating frequency band of the first antenna 510; the operating frequency band of the second antenna 520; the electronic device 100 includes AP 540 and controller 530, etc.

[0410] Figure 44 This is a schematic diagram of an electronic device 100 provided in an embodiment of this application.

[0411] For the sake of brevity, in the above embodiments, only the tuning circuit is connected in series in the circuit (e.g., as shown in the figure). Figure 43 As shown, the first tuning circuit 511 is connected in series with the first antenna 510 and the second modem 542. In actual production or application, the tuning circuit can also be connected in parallel in the circuit. Figure 44 As shown, the first terminal of the first tuning circuit 511 is electrically connected between the first antenna 510 and the second modem 542, and the first terminal of the first tuning circuit 511 is electrically connected to the ground.

[0412] It should be understood that the embodiments of this application do not limit the specific connection method of the tuning circuit, and can be selected according to factors such as the layout within the electronic device.

[0413] Meanwhile, in the above embodiments, the tuning circuit is only described using a single-pole double-throw (SPDT) switch as an example. In actual production or application, it may also include a single-pole x-throw (SPXT) or x-pole x-throw (XPXT) switch, or the tuning circuit may include multiple switches cascaded together. Figure 44 As shown, the second tuning circuit may include two SPDT switches.

[0414] It should be understood that the embodiments of this application do not limit the specific form of the tuning circuit, and can be selected according to factors such as the layout within the electronic device.

[0415] Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0416] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0417] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the mutual coupling, direct coupling, or communication connection shown or discussed may be through some interfaces; the direct coupling or communication connection between devices or units may be electrical or other forms.

[0418] 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. An electronic device, characterized in that, include: The first antenna includes a first tuning circuit; The second antenna includes a second tuning circuit; A first switch, the connection port of the first switch being electrically connected to the first tuning circuit; A first modem, wherein a first port of the first modem is electrically connected to the control port of the first switch, and a second port of the first modem is electrically connected to the first switching port of the first switch; The second modem has a first port electrically connected to the second switching port of the first switch, and a second port electrically connected to the second tuning circuit.

2. The electronic device according to claim 1, characterized in that, The control port of the first switch is used to switch the electrical connection state between the connection port of the first switch and the first switching port of the first switch, or to control the electrical connection state between the connection port of the first switch and the second switching port of the first switch.

3. The electronic device according to claim 1, characterized in that, The electronic device also includes a second switch; The connection port of the second switch is electrically connected to the second tuning circuit, the first switching port of the second switch is electrically connected to the third port of the first modem, the second switching port of the second switch is electrically connected to the second port of the second modem, and the third port of the second modem is electrically connected to the control port of the second switch.

4. The electronic device according to claim 1, characterized in that, The operating frequency band of one of the first antenna and the second antenna includes a portion of the communication frequency band in non-cellular networks, and the operating frequency band of the other of the first antenna and the second antenna includes a portion of the communication frequency band in cellular networks.

5. The electronic device according to claim 1, characterized in that, The operating frequency band of one of the first antenna and the second antenna includes at least one of the WiFi band, BT band, GPS band and satellite communication band, and the operating frequency band of the other of the first antenna and the second antenna includes at least one of the communication bands in cellular networks and satellite communication bands.

6. The electronic device according to claim 1, characterized in that, The electronic device also includes an application processor (AP) and a controller; Wherein, the first port of the AP is electrically connected to the first port of the controller, and the second port of the AP is electrically connected to the fourth port of the first modem; The second port of the controller is electrically connected to the fourth port of the second modem.

7. The electronic device according to claim 1, characterized in that, The first antenna operates in the 2.4G band of WiFi or the L1 band of GPS, and the second antenna operates in a communication band within the range of 1710MHz-2170MHz or the range of 2300MHz-2690MHz.

8. The electronic device according to claim 1, characterized in that, The first tuning circuit is coupled between the first radiator of the first antenna and the ground. The second tuning circuit is coupled between the second radiator of the second antenna and the ground.

9. The electronic device according to claim 1, characterized in that, The radiator of the first antenna has an open end at one end and a ground end at the other end; The radiator of the second antenna has an open end at one end and a grounded end at the other end.

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

11. The electronic device according to claim 10, characterized in that, The electronic device includes a first housing, a second housing, and a first rotating shaft. The first rotating shaft is located between the first housing and the second housing, and is rotatably connected to both the first housing and the second housing. The first position and the second position are located on the edge of the first housing, and the third position and the fourth position are located on the edge of the second housing.

12. The electronic device according to claim 11, characterized in that, When the electronic device is in a folded state, the first radiator and the second radiator at least partially overlap along a first direction, which is the thickness direction of the electronic device.

13. The electronic device according to claim 10, characterized in that, The second position and the third position are located on the first side of the border, the first position is located on the second side of the border, and the fourth position is located on the third side of the border. The second side intersects the first side at an angle, and the third side intersects the first side at an angle.

14. The electronic device according to claim 10, characterized in that, The first position, the second position, the third position, and the fourth position are all located on the first side of the border.

15. The electronic device according to claim 14, characterized in that, The second position and the third position coincide.

16. An electronic device, characterized in that, include: The first antenna includes a first tuning circuit; The second antenna includes a second tuning circuit; A first modem and a second modem, wherein a first port of the first modem is electrically connected to a first port of the second modem, a second port of the second modem is electrically connected to the first tuning circuit, and a third port of the second modem is electrically connected to the second tuning circuit.

17. The electronic device according to claim 16, characterized in that, The operating frequency band of one of the first antenna and the second antenna includes a portion of the communication frequency band in non-cellular networks, and the operating frequency band of the other of the first antenna and the second antenna includes a portion of the communication frequency band in cellular networks.

18. The electronic device according to claim 16, characterized in that, The operating frequency band of one of the first antenna and the second antenna includes at least one of the WiFi band, BT band, GPS band and satellite communication band, and the operating frequency band of the other of the first antenna and the second antenna includes at least one of the communication bands in cellular networks and satellite communication bands.

19. The electronic device according to claim 16, characterized in that, The electronic device also includes an application processor (AP) and a controller; Wherein, the first port of the AP is electrically connected to the first port of the controller, and the second port of the AP is electrically connected to the fourth port of the first modem; The second port of the controller is electrically connected to the fourth port of the second modem.

20. The electronic device according to claim 16, characterized in that, The first antenna operates in the 2.4G band of WiFi or the L1 band of GPS, and the second antenna operates in a communication band within the range of 1710MHz-2170MHz or the range of 2300MHz-2690MHz.

21. The electronic device according to claim 16, characterized in that, The first tuning circuit is coupled between the first radiator of the first antenna and the ground. The second tuning circuit is coupled between the second radiator of the second antenna and the ground.

22. The electronic device according to claim 16, characterized in that, The radiator of the first antenna has an open end at one end and a ground end at the other end; The radiator of the second antenna has an open end at one end and a grounded end at the other end.

23. The electronic device according to any one of claims 16 to 22, characterized in that, The electronic device further includes a frame, at least a portion of which is spaced apart from the floor, and the frame includes a first position, a second position, a third position, and a fourth position arranged sequentially. The first radiator of the first antenna includes a conductive portion of the frame between the first position and the second position; The second radiator of the second antenna includes a conductive portion of the frame between the third and fourth positions.

24. The electronic device according to claim 23, characterized in that, The electronic device includes a first housing, a second housing, and a first rotating shaft. The first rotating shaft is located between the first housing and the second housing, and is rotatably connected to both the first housing and the second housing. The first position and the second position are located on the edge of the first housing, and the third position and the fourth position are located on the edge of the second housing.

25. The electronic device according to claim 24, characterized in that, When the electronic device is in a folded state, the first radiator and the second radiator at least partially overlap along a first direction, which is the thickness direction of the electronic device.

26. The electronic device according to claim 23, characterized in that, The second position and the third position are located on the first side of the border, the first position is located on the second side of the border, and the fourth position is located on the third side of the border. The second side intersects the first side at an angle, and the third side intersects the first side at an angle.

27. The electronic device according to claim 23, characterized in that, The first position, the second position, the third position, and the fourth position are all located on the first side of the border.

28. The electronic device according to claim 27, characterized in that, The second position and the third position coincide.

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