Electronic device

Abstract

Provided in the present application is an electronic device. The electronic device comprises an antenna, wherein a conductive part of a frame of the electronic device is used as a radiator of the antenna, thereby improving the experience of a user during satellite navigation or communication. The antenna further comprises a first feed circuit, a second feed circuit and a tuning circuit, wherein the first feed circuit is used for transmitting electrical signals at a first frequency band, and the second feed circuit is used for transmitting electrical signals at a second frequency band. A controller of the electronic device is electrically connected to the tuning circuit of the antenna, and the controller is used for switching the circuit state of the tuning circuit to enable the antenna to operate in the first frequency band or the second frequency band.

Description

An electronic device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 7, 2023, with application number 202311683880.2 and application name “An Electronic Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of wireless communications, and in particular to an electronic device. Background Art

[0003] With the continuous evolution of mobile communication technology, satellite communication has gradually become a key feature in mobile devices. However, the industrial design (ID) trend of electronic devices is towards larger screen-to-body ratios and multiple cameras. This has significantly reduced antenna clearance, making layout space increasingly limited.

[0004] Satellite communication technology has high requirements on the radiation characteristics of antennas, so how to realize satellite communication under the current architecture has become a top priority. Summary of the Invention

[0005] The present application provides an electronic device, which includes an antenna. The antenna uses a conductive part of the frame of the electronic device as a radiator, which can enhance the user experience when performing satellite navigation or communication.

[0006] In a first aspect, a floor is provided; a frame comprising a first side and a second side intersecting at an angle, the length of the first side being greater than the length of the second side, the second side comprising a first position and a second position, the frame having a first slit and a second slit respectively provided at the first position and the second position; an antenna comprising: a radiator, the radiator being a conductive portion of the frame between the first position and the second position, a first feeding circuit and a second feeding circuit, the radiator comprising a feeding point, the first feeding circuit and the second feeding circuit being coupled to the feeding point, the first feeding circuit being used to transmit an electrical signal in a first frequency band, and the second feeding circuit being used to transmit an electrical signal in a second frequency band; a tuning circuit, the radiator further comprising a connection point, the tuning circuit being coupled and connected between the floor and the connection point; a controller, the controller being electrically connected to the tuning circuit, the controller being used to switch the circuit state of the tuning circuit so that the antenna operates in the first frequency band or the second frequency band; wherein the first frequency band comprises a satellite communication frequency band, and the second frequency band comprises at least part of a frequency band in short-range communication or at least part of a frequency band in a cellular network.

[0007] According to an embodiment of the present application, the controller can switch the circuit state of the tuning circuit so that the antenna operates in the first frequency band or the second frequency band, thereby realizing switching between different communication systems and improving the radiation performance of the antenna in different communication systems.

[0008] The controller is used to switch the circuit state of the tuning circuit so that the antenna operates in the first frequency band or the second frequency band. This can be understood as switching the equivalent resistance value, equivalent capacitance value, or equivalent inductance value between the connection point and the floor so that the radiator produces a first resonance and a second resonance, respectively. The resonant point frequency of the first resonance is different from the resonant point frequency of the second resonance. The resonant frequency range of the first resonance includes the first frequency band, and the resonant frequency range of the second resonance includes the second frequency band, so that the resonant frequency range of the first resonance includes the first frequency band or the second frequency band.

[0009] At the same time, in the structure of the above antenna, the linear DM mode of the radiator can be excited. It can be seen from the above embodiment that when the radiator is arranged on the second side, the radiation efficiency and system efficiency of the resonance generated by the linear DM mode of the antenna are higher. Since the gain of the antenna is related to the directivity and efficiency (radiation efficiency and system efficiency) of the antenna, when the efficiency (radiation efficiency and system efficiency) of the antenna is improved, the directivity remains unchanged and the gain of the antenna can also be improved. Therefore, although the polarization characteristics of the radiation generated by the antenna when the electronic device communicates in the first frequency band (satellite frequency band) are similar to linear polarization, there will be a loss of about when receiving circularly polarized electromagnetic waves, but because the antenna has good efficiency (radiation efficiency and system efficiency).

[0010] Furthermore, when a user is performing satellite navigation or communication, the antenna's maximum radiation direction needs to be pointed toward the satellite to achieve alignment (establishing a communication connection with the satellite). In the technical solution provided in the embodiments of the present application, since the radiator is located on the second side, the maximum radiation direction of the directional pattern generated by the antenna is toward the top of the electronic device (e.g., the y-direction). This allows the user to obtain a good user experience by not changing the posture of holding the electronic device when using the electronic device for satellite navigation or communication in the first frequency band.

[0011] In combination with the first aspect, in some implementations of the first aspect, the frame further includes a grounding point, the grounding point is located between the first position and the second position, and the frame is coupled to the floor at the grounding point.

[0012] According to an embodiment of the present application, the radiator includes a ground point, and the radiator can generate additional resonance in the linear CM mode. When the radiator can simultaneously generate resonance in the linear CM mode and the linear DM mode, the proportion of the linear DM mode in the first frequency band (the resonant frequency band of the first resonance) can be increased, so that the antenna radiates primarily in the linear DM mode in the first frequency band (the resonant frequency band of the first resonance), thereby improving the antenna's radiation characteristics (e.g., radiation efficiency and system efficiency) in the first frequency band.

[0013] In combination with the first aspect, in some implementations of the first aspect, the antenna further includes a grounding member, a first end of the grounding member is coupled to the grounding point, a second end of the grounding member is coupled to the floor, and the grounding member is integrally formed with the frame.

[0014] According to an embodiment of the present application, the grounding member, the frame and the middle plate can be milled out of the same metal member, thereby reducing errors during assembly and improving the radiation characteristics (for example, bandwidth) of the antenna.

[0015] In combination with the first aspect, in some implementations of the first aspect, the feeding point and the connection point are located between the first position and the grounding point.

[0016] In combination with the first aspect, in some implementations of the first aspect, the antenna further includes a switch; wherein the common port of the switch is coupled to the feeding point, the first port of the switch is coupled to the first feeding circuit, and the second port of the switch is coupled to the second feeding circuit.

[0017] In combination with the first aspect, in some implementations of the first aspect, a clearance of the antenna is less than or equal to 1.5 mm.

[0018] In combination with the first aspect, in some implementations of the first aspect, a clearance of the antenna is greater than or equal to 0.5 mm.

[0019] According to the embodiment of the present application, the antenna clearance can be understood as the minimum distance between the radiator and the metal or electronic components close to the radiator. As the antenna clearance decreases, the radiation performance (eg, bandwidth) of the antenna decreases.

[0020] In combination with the first aspect, in some implementations of the first aspect, a size of the radiator along a first direction is less than or equal to 3.5 mm and greater than or equal to 1.5 mm, and the first direction is a thickness direction of the electronic device.

[0021] According to the embodiment of the present application, when the thickness of the radiator (for example, the dimension along the first direction) decreases, the radiation performance (for example, the bandwidth) of the antenna decreases.

[0022] In combination with the first aspect, in certain implementations of the first aspect, the controller is used to switch the antenna to operate in the first frequency band or the second frequency band, including: the controller switches the tuning circuit to a first circuit state or a second circuit state according to the working state of the electronic device; based on the tuning circuit being in the first circuit state, the radiator is used to generate a first resonance, and the resonant frequency band of the first resonance includes the first frequency band; based on the tuning circuit being in the second circuit state, the radiator is used to generate a second resonance, and the resonant frequency band of the second resonance includes the second frequency band.

[0023] According to an embodiment of the present application, the circuit state of the tuning circuit can be understood as the equivalent resistance value, equivalent capacitance value or equivalent inductance value between the connection point and the floor. The resonance point frequency of the resonance generated by the radiator can be adjusted through different circuit states.

[0024] In combination with the first aspect, in certain implementations of the first aspect, the controller switches the tuning circuit to a first circuit state or a second circuit state according to the working state of the electronic device, including: when a first score is greater than or equal to a second score, the controller switches the tuning circuit to the first circuit state, the first score being the score corresponding to the working state of the electronic device when the antenna operates in a first frequency band, and the second score being the score corresponding to the working state of the electronic device when the antenna operates in a second frequency band; when the first score is less than the second score, the controller switches the tuning circuit to the second circuit state.

[0025] According to an embodiment of the present application, the electronic device can have multiple different operating states simultaneously. The first score and the second score can be the scores corresponding to different operating states of the controller. Different operating states can correspond to different priorities and thus different scores, so that the electronic device can be limited to a higher-priority operating state.

[0026] In combination with the first aspect, in certain implementations of the first aspect, the working status includes at least one of the following: positioning off, continuous positioning-outdoor L1 weak signal, continuous positioning-outdoor L1 strong signal, continuous positioning-outdoor L5 weak signal, continuous positioning-outdoor L5 strong signal, continuous positioning-indoor positioning, continuous positioning-indoor and outdoor identification, single point positioning-foreground, single point positioning-background, satellite activated, satellite not activated, satellite ready status, satellite transceiver status.

[0027] In combination with the first aspect, in some implementations of the first aspect, the electronic device includes a modem, a first port of the modem is electrically connected to the controller, and a second port of the modem is electrically connected to the tuning circuit.

[0028] In combination with the first aspect, in certain implementations of the first aspect, the controller switches the tuning circuit to a first circuit state or a second circuit state according to the working state of the electronic device, including: the controller sends a first signal to the modem, the first signal being used to indicate the circuit state of the tuning circuit; and the modem switches the circuit state of the tuning circuit according to the first signal.

[0029] In combination with the first aspect, in some implementations of the first aspect, at the resonance point of the first resonance, the currents on the radiator are in the same direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] FIG1 is a schematic diagram of an electronic device 10 provided in an embodiment of the present application.

[0031] FIG2 is a schematic diagram showing the structure of the common mode of a wire antenna provided in the present application and the corresponding distribution of current and electric field.

[0032] FIG3 is a schematic diagram showing the structure of the differential mode of another linear antenna provided in the present application and the corresponding current and electric field distribution.

[0033] FIG4 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0034] FIG. 5 is an S-parameter simulation result of the antenna 100 in the electronic device 10 shown in FIG. 4 .

[0035] FIG. 6 shows simulation results of the system efficiency and radiation efficiency of the antenna 100 in the electronic device 10 shown in FIG. 4 .

[0036] FIG7 is a schematic diagram of an electronic device 10 provided in an embodiment of the present application.

[0037] FIG8 is a schematic diagram of an electronic device 10 provided in an embodiment of the present application.

[0038] FIG9 is a schematic diagram of an electronic device 10 provided in an embodiment of the present application.

[0039] FIG10 is a schematic diagram of a process in an electronic device 10 provided in an embodiment of the present application.

[0040] FIG11 is a schematic diagram of an antenna switching method 400 provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] The technical solution in this application will be described below with reference to the accompanying drawings.

[0042] It should be understood that the term "and / or" as used herein is simply a term used to describe the existence of three possible relationships between related objects. For example, "A and / or B" can represent the existence of A alone, the existence of both A and B, and the existence of B alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0043] When used in this application, "within the range of...", unless it is specifically stated that the end value is not included, it is assumed that both end values ​​of the range are included. For example, in the range of 1 to 5, the two values ​​1 and 5 are included.

[0044] Coupling: can be understood as direct coupling and / or indirect coupling, and "coupling connection" can be understood as direct coupling connection and / or indirect coupling connection. Direct coupling can also be referred to as "electrical connection", which is understood as the physical contact and electrical conduction between components; it can also be understood as the form in which different components in the circuit structure are connected through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals; "indirect coupling" can be understood as two conductors being electrically conductive in an airless / non-contact manner. In some embodiments, indirect coupling can also be referred to as capacitive coupling, for example, signal transmission is achieved by forming an equivalent capacitance through coupling between the gap between two conductive parts.

[0045] Component / device: includes at least one of lumped component / device and distributed component / device.

[0046] Lumped component / device: This refers to all components whose size is much smaller than the wavelength relative to the circuit's operating frequency. For a signal, the component's characteristics remain constant at all times, regardless of frequency.

[0047] Distributed components / devices: Unlike lumped components, if the size of the component is similar to or larger than the wavelength relative to the circuit operating frequency, then when the signal passes through the component, the characteristics of each point of the component itself will vary due to changes in the signal. At this time, the component as a whole cannot be regarded as a single entity with fixed characteristics, but should be called a distributed component.

[0048] Capacitance: This can be understood as lumped capacitance and / or distributed capacitance. Lumped capacitance refers to capacitive components, such as capacitors; distributed capacitance (or distributed capacitance) refers to the equivalent capacitance formed by two conductive parts separated by a certain gap.

[0049] Inductance: This can be understood as lumped inductance and / or distributed inductance. Lumped inductance refers to inductive components, such as inductors; distributed inductance (or distributed inductance) refers to the equivalent inductance formed by a certain length of conductive material.

[0050] Radiator: A device in an antenna used to receive / send electromagnetic wave radiation. In some cases, the narrow meaning of "antenna" is the radiator, which converts the guided wave energy from the transmitter into radio waves, or converts radio waves into guided wave energy, used to radiate and receive radio waves. The modulated high-frequency current energy (or guided wave energy) generated by the transmitter is transmitted to the transmitting radiator via the feeder line, where it is converted into a certain polarized electromagnetic wave energy and radiated in the desired direction. The receiving radiator converts the electromagnetic wave energy of a certain polarization from a specific direction in space into modulated high-frequency current energy and transmits it to the receiver input via the feeder line.

[0051] The radiator may include a conductor with a specific shape and size, such as a wire or sheet, etc. The present application does not limit the specific shape. In some embodiments, the linear radiator can be simply referred to as a wire antenna. In some embodiments, the linear radiator can be implemented by a conductive frame, which can also be called a frame antenna. In some embodiments, the linear radiator can be implemented by a bracket conductor, which can also be called a bracket antenna. In some embodiments, the wire diameter (for example, including thickness and width) of the linear radiator, or the radiator of the wire antenna is much smaller than the wavelength (for example, the wavelength of the medium) (for example, less than 1 / 16 of the wavelength), and the length can be comparable to the wavelength (for example, the wavelength of the medium) (for example, the length is about 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, for a dipole antenna, each dipole antenna typically includes two radiating branches, and each branch is fed by a feeding portion from the feeding end of the radiating branch. For example, an inverted-F antenna (IFA) can be regarded as a monopole antenna with a ground path added. The IFA antenna has a feeding point and a grounding point, and is called an inverted-F antenna because its side view is an inverted F shape. In some embodiments, the sheet radiator may include a microstrip antenna, or a patch antenna, such as a planar inverted F antenna (also known as a PIFA, Planar Inverted F Antenna). In some embodiments, the sheet radiator may be implemented by a planar conductor (such as a conductive sheet or a conductive coating, etc.). In some embodiments, the sheet radiator may include a conductive sheet, such as a copper sheet, etc. In some embodiments, the sheet radiator may include a conductive coating, such as a silver paste, etc. The shapes of the sheet radiator include circular, rectangular, annular, etc., and the present 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.

[0052] The radiator may also include a slot or slot formed in a conductor, for example, a closed or semi-closed slot or slot formed in a grounded conductor surface. In some embodiments, a slotted or slotted radiator may be referred to as a slot antenna or slot antenna. In some embodiments, the radial dimension (e.g., including the width) of the slot or slot of the slot antenna / slot antenna is significantly smaller than the wavelength (e.g., the dielectric wavelength) (e.g., less than 1 / 16 of the wavelength), and the length dimension may be comparable to the wavelength (e.g., the dielectric wavelength) (e.g., approximately 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). In some embodiments, a radiator with a closed slot or slot may be referred to as a closed slot antenna. In some embodiments, a radiator with a semi-closed slot or slot (e.g., a closed slot or slot with an additional opening) may be referred to as an open slot antenna. In some embodiments, the slot is elongated. In some embodiments, the slot is approximately half a wavelength (e.g., the dielectric wavelength). In some embodiments, the slot is approximately an integer multiple of the wavelength (e.g., one wavelength). In some embodiments, the slot can be fed with a transmission line spanning one or both sides of the slot, thereby exciting a radio frequency electromagnetic field in the slot and radiating electromagnetic waves into space. In some embodiments, the radiator of a slot antenna or slot antenna can be implemented by a conductive frame with both ends grounded, also known as a frame antenna. In this embodiment, the slot antenna or slot antenna can be considered to include a linear radiator spaced from the floor and grounded at both ends, thereby forming a closed or semi-enclosed slot or slot. In some embodiments, the radiator of a slot antenna or slot antenna can be implemented by a bracket conductor with both ends grounded, also known as a bracket antenna.

[0053] The feed circuit is a combination of all circuits used for receiving and transmitting radio frequency signals. The feed circuit may include a transceiver and an RF front end circuit. In some cases, the "feed circuit" is understood in a narrow sense as a radio frequency chip (RFIC, radio frequency integrated circuit), and the RFIC can be considered to include an RF front end chip and a transceiver. The feed circuit has the function of converting radio waves (e.g., radio frequency signals) and electrical signals (e.g., digital signals). Generally, it is considered to be part of the radio frequency.

[0054] In some embodiments, the electronic device may also include a test socket (or RF socket or RF test socket). This test socket can be used to insert a coaxial cable and test the characteristics of the RF front-end circuit or antenna radiator through the cable. The RF front-end circuit can be considered as the circuit portion coupled between the test socket and the transceiver.

[0055] In some embodiments, the RF front-end circuit may be integrated into a RF front-end chip in the electronic device, or the RF front-end circuit and the transceiver may be integrated into a RF chip in the electronic device.

[0056] It should be understood that any two of the first / second / ...Nth feeding circuits in the present application can share the same transceiver, for example, transmitting signals through a radio frequency channel in a transceiver (for example, a port (pin) of a radio frequency chip); they can also share a radio frequency front-end circuit, for example, processing signals through a switch or amplifier in a radio frequency front-end.

[0057] It should also be understood that two feeding circuits in the first / second / ...Nth feeding circuit in the present application usually correspond to two radio frequency test sockets in the electronic device.

[0058] A matching circuit is a circuit used to adjust the radiation characteristics of an antenna. In some embodiments, the matching circuit is coupled between the feed circuit and the corresponding radiator. In some embodiments, the matching circuit is coupled between the test socket and the radiator. Typically, the matching circuit is a combination of circuits coupled between the radiator and the ground plane. In some embodiments, the matching circuit may include switches and / or electronic components, where the switches may be electronic components used to switch the coupling connection of the radiator. The matching circuit performs impedance matching and / or frequency tuning functions and is generally considered to be part of the antenna.

[0059] The grounding structure / feeding structure may include a connector, such as a metal spring, through which the radiator is coupled to the floor / feeding structure is coupled to the feeding circuit. In some embodiments, the feeding structure may include a transmission line / feeding line, and the grounding structure may include a grounding wire.

[0060] End / point: The "end / point" in the first end / second end / feeding end / grounding end / feeding point / grounding point / connection point of an antenna radiator should not be narrowly understood as an end point or end portion that is physically disconnected from other radiators. It can also be considered as a point or a section on a continuous radiator. In some embodiments, the "end / point" may include a connection / coupling area on the antenna radiator that is coupled to other conductive structures. For example, the feeding end / feeding point may be a coupling area on the antenna radiator that is coupled to the feeding structure (for example, an area facing a portion of the feeding structure). For another example, the grounding end / grounding point may be a connection / coupling area on the antenna radiator that is coupled to the grounding structure.

[0061] Open end, closed end: In some embodiments, the open end and the closed end are, for example, relative to whether they are grounded. The closed end is grounded, and the open end is not grounded. In some embodiments, the open end and the closed end are, for example, relative to other conductors. The closed end is electrically connected to other conductors, and the open end is not electrically connected to other conductors. In some embodiments, the open end can also be referred to as a floating end, a free end, an open end, or an open-circuit end. In some embodiments, the closed end can also be referred to as a grounded end or a short-circuit end. It should be understood that in some embodiments, other conductors can be coupled to each other through the open end to transfer coupling energy (which can be understood as transferring current).

[0062] In some embodiments, the "closed end" can also be understood from the perspective of current distribution. The closed end or the grounded end can be understood as a point with larger current on the radiator, or as a point with smaller electric field on the radiator. In some embodiments, the current distribution characteristics of larger current / smaller electric field can be maintained by coupling electronic devices (for example, capacitors, inductors, etc.) through the closed end. In some embodiments, the current distribution characteristics of larger current / smaller electric field can be maintained by opening a gap at or near the closed end (for example, a gap filled with insulating material).

[0063] In some embodiments, the understanding of "open end" can also be viewed from the perspective of current distribution. The open end or floating end can be understood as a point with low current on the radiator, or as a point with high electric field on the radiator. In some embodiments, coupling electronic devices (for example, capacitors, inductors, etc.) through the open end can maintain the current distribution characteristics of the low current point / high electric field point.

[0064] It should be understood that coupling the radiator end at a gap (from the perspective of the radiator structure, it is similar to the radiator at the opening of the open end or the suspended end) with electronic devices (for example, capacitors, inductors, etc.) can make the radiator end a point with larger current / smaller electric field. In this case, it should be understood that the radiator end at the gap is actually a closed end or a grounded end, etc.

[0065] The “suspended radiator” mentioned in the embodiments of the present application means that the radiator is not directly connected to the feed line / feed branch and / or the ground line / ground branch, but is fed and / or grounded through indirect coupling.

[0066] It should be understood that the "suspended" in "suspended end" and "suspended radiator" does not mean that there is no structure around the radiator to support it. In some embodiments, the suspended radiator can be, for example, a radiator disposed on the inner surface of the insulating back cover.

[0067] The current same direction / reverse direction mentioned in the embodiments of the present application should be understood as the direction of the main current on the conductor on the same side is the same direction / reverse direction. For example, when stimulating a unidirectional distributed current on a conductor that is bent or ring-shaped (for example, the current path is also bent or ring-shaped), it should be understood that, for example, the main currents stimulated on the conductors on both sides of the ring conductor (for example, a conductor surrounding a gap, on the conductors on both sides of the gap) are opposite in direction, which still falls within the definition of the unidirectional distributed current in the embodiments of the present application. In some embodiments, the current same direction on a conductor can refer to the current on the conductor having no reversal point. In some embodiments, the current reverse on a conductor can refer to the current on the conductor having at least one reversal point. In some embodiments, the current same direction on two conductors can refer to the current on both conductors having no reversal point and flowing in the same direction. In some embodiments, the current reverse on two conductors can refer to the current on both conductors having no reversal point and flowing in opposite directions. The current same direction / reversal on multiple conductors can be understood accordingly.

[0068] The electric field in the embodiments of the present application mentioned in the same direction / opposite direction should be understood as the direction of the main electric field generated by the conductor in the space (for example, the electric field between the conductor and the floor) is in the same direction / opposite direction. For example, when a unidirectional distributed electric field is excited on a bent or ring-shaped conductor (for example, the gap formed between the floor and the conductor is also bent or ring-shaped), it should be understood that, for example, the direction of the electric field in the gap is from the floor to the conductor, or from the conductor to the floor. Although the main electric fields excited in the gaps on both sides of the ring-shaped conductor (for example, the gaps on both sides of the gap of the conductor surrounding a gap) are opposite in direction, they still fall within the definition of the unidirectional distributed electric field in the embodiments of the present application. In some embodiments, the electric field in the same direction between a conductor and the floor can mean that there is no reversal point between the electric field between the conductor and the floor. In some embodiments, the electric field in the opposite direction between a conductor and the floor can mean that there is at least one reversal point between the electric field between the conductor and the floor. In some embodiments, the electric fields between two conductors and the floor are in the same direction, meaning that the electric fields between the two conductors and the floor have no reversal points and radiate in the same direction (e.g., the positive z-axis direction). In some embodiments, the electric fields between two conductors and the floor are in opposite directions, meaning that the electric fields between the two conductors and the floor have no reversal points and flow in opposite directions. The terms "electric fields between multiple conductors and the floor are in the same direction" and "electric fields between the two conductors and the floor are in opposite directions" can be understood accordingly.

[0069] Resonance / resonance frequency: The resonant frequency is also called the resonance frequency. The resonant frequency can have a frequency range, that is, the frequency range in which resonance occurs. The frequency corresponding to the strongest resonance point is the center frequency point frequency. The return loss characteristic of the center frequency can be less than -20dB. It should be understood that, unless otherwise specified, the antenna / radiator mentioned in this application produces a "first / second... resonance", where the first resonance should be the fundamental mode resonance generated by the antenna / radiator, or in other words, the lowest frequency resonance generated by the antenna / radiator. It should be understood that the antenna / radiator can generate one or more antenna modes according to the specific design, and each antenna mode can generate a corresponding fundamental mode resonance.

[0070] Resonant frequency band: The range of the resonant frequency is the resonant frequency band. The return loss characteristic of any frequency point in the resonant frequency band can be less than -6dB or -5dB.

[0071] Communication frequency band / operating frequency band: Regardless of the type of antenna, it always operates within a certain frequency range (bandwidth). For example, an antenna that supports the B40 frequency band operates between 2300MHz and 2400MHz, or in other words, the antenna's operating frequency band includes the B40 frequency band. The frequency range that meets the required specifications can be considered the antenna's operating frequency band.

[0072] The resonant frequency band and the operating frequency band may be the same, or may partially overlap. In some embodiments, one or more resonant frequency bands of an antenna may overlap one or more operating frequency bands of the antenna.

[0073] Electrical length: It can refer to the ratio of physical length (i.e. mechanical length or geometric length) to the wavelength of the transmitted electromagnetic wave. The electrical length can satisfy the following formula:

[0074] Where L is the physical length and λ is the wavelength of the electromagnetic wave.

[0075] Wavelength: Or operating wavelength, this 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, if the center frequency of the B1 uplink frequency band (resonant frequency 1920MHz to 1980MHz) is 1955MHz, the operating wavelength can be the wavelength calculated using 1955MHz. "Operating wavelength" is not limited to the center frequency; it can also refer to the wavelength corresponding to a non-center frequency of the resonant frequency or operating frequency band.

[0076] It should be understood that the wavelength of the radiation signal in air can be calculated as follows: (wavelength in air, or wavelength in vacuum) = speed of light / frequency, where 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 the radiation signal in the medium can be calculated as follows: Wherein, ε is the relative dielectric constant of the medium. The wavelength in the embodiments of the present application generally refers to the dielectric wavelength, which can be the dielectric wavelength corresponding to the center frequency of the resonant frequency, or the dielectric wavelength corresponding to the center frequency of the working frequency band supported by the antenna. For example, assuming that the center frequency of the B1 uplink frequency band (resonant frequency is 1920MHz to 1980MHz) is 1955MHz, the wavelength can be the dielectric wavelength calculated using the frequency of 1955MHz. Not limited to the center frequency, "dielectric wavelength" can also refer to the dielectric wavelength corresponding to the non-center frequency of the resonant frequency or the working frequency band. For ease of understanding, the dielectric wavelength mentioned in the embodiments of the present application can be simply calculated by the relative dielectric constant of the medium filled on one or more sides of the radiator.

[0077] Those skilled in the art will understand that efficiency is generally expressed as a percentage, which has a corresponding conversion relationship with dB. The closer the efficiency is to 0 dB, the better the efficiency of the antenna.

[0078] Antenna system efficiency (total efficiency): refers to the ratio of input power to output power at the antenna port.

[0079] Antenna radiation efficiency refers to the ratio of the power radiated by an antenna into space (i.e., the power effectively converted into electromagnetic waves) to the active power input to the antenna. Active power input to the antenna = antenna input power minus power loss; power loss primarily includes return loss and metal ohmic loss and / or dielectric loss. Radiation efficiency measures the antenna's radiation capability, and both metal loss and dielectric loss contribute to it.

[0080] Those skilled in the art will understand that efficiency is generally expressed as a percentage, which has a corresponding conversion relationship with dB. The closer the efficiency is to 0 dB, the better the efficiency of the antenna.

[0081] Antenna return loss: This can be understood as the ratio of the signal power reflected back to the antenna port by the antenna circuit to the antenna port's transmitted power. The smaller the reflected signal, the larger the signal radiated from the antenna into space, and the greater the antenna's radiation efficiency. The larger the reflected signal, the smaller the signal radiated from the antenna into space, and the lower the antenna's radiation efficiency.

[0082] Antenna return loss can be expressed using the S11 parameter, a type of S parameter. S11 represents the reflection coefficient and characterizes the antenna's transmission efficiency. The S11 parameter is typically negative. A smaller S11 parameter indicates lower antenna return loss and less energy reflected back from the antenna itself, meaning more energy actually enters the antenna and higher system efficiency. A larger S11 parameter indicates greater antenna return loss and lower system efficiency.

[0083] It should be noted that in engineering, an S11 value of -6dB is generally used as a standard. When the S11 value of an antenna is less than -6dB, it can be considered that the antenna can work normally, or the antenna can be considered to have good transmission efficiency.

[0084] Antenna pattern: Also known as radiation pattern. It is a graph showing how the relative field strength (normalized modulus) of the antenna's radiation field changes with direction at a certain distance from the antenna (far field). It is usually represented by two mutually perpendicular plane patterns passing through the antenna's direction of maximum radiation.

[0085] Antenna patterns typically have multiple radiation beams. The beam with the strongest radiation intensity is called the main lobe, while the remaining beams are called side lobes. Among the side lobes, those in the opposite direction of the main lobe are also called back lobes.

[0086] Directivity: Also known as the directivity of an antenna, it refers to the ratio of the maximum power density to the average power density in the antenna pattern at a certain distance from the antenna (far field). It is a dimensionless ratio greater than or equal to 1. It can be used to indicate the energy radiation characteristics of an antenna. A larger directivity indicates that the antenna radiates more energy in a certain direction and the energy radiation is more concentrated.

[0087] Antenna Gain: This is used to measure how well an antenna radiates input power. Generally, the narrower the main lobe of an antenna pattern and the smaller the side lobes, the higher the antenna gain.

[0088] Polarization direction of an antenna: At a given point in space, the electric field strength E (vector) is a function of time t. As time passes, the endpoints of the vector periodically trace a trajectory in space. If this trajectory is straight and perpendicular to the ground, it is called vertical polarization. If it is horizontal to the ground, it is called horizontal polarization. If this trajectory is elliptical or circular and rotates clockwise or to the right as viewed along the propagation direction, it is called right-hand circular polarization (RHCP). If it rotates counterclockwise or to the left as viewed along the propagation direction, it is called left-hand circular polarization (LHCP).

[0089] Clearance: This refers to the minimum distance between an antenna's radiator and any metal or electronic components near it. For example, when a portion of the metal frame of an electronic device serves as the antenna's radiator, clearance can refer to the distance between the radiator and the printed circuit board or electronic components (such as a camera).

[0090] Ground (GND): can generally refer to at least a part of any grounding layer, grounding plate, or grounding metal layer in an electronic device (such as a mobile phone), or at least a part of any combination of any of the above grounding layers, grounding plates, or grounding components, etc. "Ground" can be used for grounding components in an electronic device. In one embodiment, "ground" can be the grounding layer of a circuit board of an electronic device, or it can be the grounding plate formed by the middle frame of the electronic device, or the grounding metal layer formed by the metal film under the screen. In one embodiment, the circuit board can be a printed circuit board (PCB), such as an 8-layer, 10-layer, or 12 to 14-layer board having 8, 10, 12, 13, or 14 layers of conductive material, or an element separated and electrically insulated by a dielectric layer or insulating layer such as fiberglass, polymer, etc. In one embodiment, the circuit board includes a dielectric substrate, a grounding layer, and a routing layer, and the routing layer and the grounding layer are electrically connected through vias. In one embodiment, components such as a display, touch screen, input buttons, transmitter, processor, memory, battery, charging circuit, and system-on-chip (SoC) structures can be mounted on or connected to a circuit board, or electrically connected to a trace layer and / or ground layer in the circuit board. For example, a radio frequency source can be located on a trace layer.

[0091] Any of the above-mentioned grounding layers, grounding plates, or grounding metal layers are made of a conductive material. In one embodiment, the conductive material can be any of the following: copper, aluminum, stainless steel, brass, and alloys thereof, 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 and tin-plated copper on an insulating substrate, cloth impregnated with graphite powder, a graphite-coated substrate, a copper-plated substrate, a brass-plated substrate, and an aluminum-plated substrate. Those skilled in the art will appreciate that the grounding layer / grounding plate / grounding metal layer can also be made of other conductive materials.

[0092] Grounding refers to coupling to the ground / floor in any manner. In some embodiments, grounding can be achieved through physical grounding, such as achieving physical grounding at a specific location on the frame through a portion of the midframe's structural components (or referred to as a physical ground). In some embodiments, grounding can be achieved through device grounding, such as grounding a device such as a capacitor, inductor, or resistor connected in series or in parallel (or referred to as a device ground).

[0093] The technical solutions of the embodiments of the present application will be described below with reference to the accompanying drawings.

[0094] As shown in FIG1 , electronic device 10 may include a cover 13, a display / module 15, a printed circuit board (PCB) 17, a middle frame 19, and a rear cover 21. It should be understood that in some embodiments, cover 13 may be a glass cover or may be replaced with a cover made of other materials, such as a PET (Polyethylene terephthalate) material.

[0095] The cover plate 13 may be disposed closely against the display module 15 , and may be mainly used to protect the display module 15 and prevent dust.

[0096] In some embodiments, the display module 15 may include a liquid crystal display panel (LCD), a light emitting diode (LED) display panel, or an organic light-emitting diode (OLED) display panel, etc., which is not limited in the embodiments of the present application.

[0097] The middle frame 19 primarily supports the entire device. FIG1 shows that the PCB 17 is disposed between the middle frame 19 and the back cover 21. It should be understood that, in some embodiments, the PCB 17 may also be disposed between the middle frame 19 and the display module 15, and this embodiment of the present application does not limit this. The printed circuit board PCB 17 may be made of a flame-resistant material (FR-4) dielectric board, a Rogers dielectric board, a hybrid of Rogers and FR-4, or the like. FR-4 is a designation for a grade of flame-resistant material, and a Rogers dielectric board is a high-frequency board. The PCB 17 carries electronic components, such as radio frequency chips. In some embodiments, a metal layer may be provided on the PCB 17. This metal layer may be used to ground the electronic components carried on the PCB 17, as well as other components, such as a bracket antenna or a frame antenna. The metal layer may be referred to as a floor, a ground plane, or a grounding layer. In some embodiments, the metal layer may be formed by etching metal on the surface of any dielectric board in the PCB 17. In some embodiments, the metal layer used for grounding can be provided on the side of the printed circuit board PCB 17 near the middle frame 19. In some embodiments, the edge of the printed circuit board PCB 17 can be considered the edge of its ground layer. In some embodiments, the metal middle frame 19 can also be used to ground the aforementioned components. The electronic device 10 may also have other floor / ground planes / ground layers, as previously described and will not be further described here.

[0098] Due to the compactness of electronic devices, a floor / ground plate / ground layer is typically provided within a 0-2 mm internal space from the inner surface of the frame (for example, the printed circuit board, midframe, screen metal layer, battery, etc. can all be considered part of the floor). In some embodiments, a dielectric is filled between the frame and the floor, and the length and width of the rectangle enclosed by the inner surface contour of the dielectric filling can be simply considered the length and width of the floor. Alternatively, the length and width of the rectangle enclosed by the contour of all conductive parts within the frame can be considered the length and width of the floor.

[0099] The electronic device 10 may further include a battery (not shown). The battery may be disposed between the middle frame 19 and the back cover 21, or between the middle frame 19 and the display module 15, and this is not limited in this embodiment of the present application. In some embodiments, the PCB 17 is divided into a main board and a sub-board, and the battery may be disposed between the main board and the sub-board. The main board may be disposed between the middle frame 19 and the upper edge of the battery, and the sub-board may be disposed between the middle frame 19 and the lower edge of the battery.

[0100] The electronic device 10 may further include a frame 11, which may be formed of a conductive material such as metal. The frame 11 may be provided between the display module 15 and the back cover 21 and extend circumferentially around the periphery of the electronic device 10. The frame 11 may have four sides surrounding the display module 15 to help fix the display module 15. In one implementation, the frame 11 made of a conductive material may be directly used as a conductive frame of the electronic device 10, for example, to form the appearance of a metal frame, suitable for metal industrial design (ID). In one implementation, the outer surface of the frame 11 may be a conductive material, such as a metal material, thereby forming the appearance of a metal frame. In these implementations, the conductive portion of the frame 11 may be used as an antenna radiator of the electronic device 10.

[0101] In another implementation, the outer surface of the frame 11 can also be a non-conductive material, such as plastic, to form the appearance of a non-metallic frame, which is suitable for non-metallic ID. In one implementation, the inner surface of the frame 11 may include a conductive material, such as a metal material. In this implementation, the conductive portion of the frame 11 can be used as an antenna radiator of the electronic device 10. It should be understood that the radiator provided on the inner surface of the frame 11 (or the conductive material on the inner surface) is arranged in contact with the non-conductive material of the frame 11 to facilitate antenna radiation, and both the conductive material and the non-conductive material should be regarded as part of the frame 11.

[0102] The middle frame 19 may include a frame 11, and the middle frame 19 including the frame 11 is an integral part that can support the electronic devices in the whole machine. The cover 13 and the back cover 21 are respectively covered along the upper and lower edges of the frame to form a shell or housing (housing) of the electronic device. In some embodiments, the cover 13, the back cover 21, the frame 11 and / or the middle frame 19 can be collectively referred to as the shell or housing of the electronic device 10. It should be understood that "shell or housing" can be used to refer to part or all of any one of the cover 13, the back cover 21, the frame 11 or the middle frame 19, or to part or all of any combination of the cover 13, the back cover 21, the frame 11 or the middle frame 19.

[0103] The frame 11 can at least partially serve as an antenna radiator to transmit and receive radio frequency signals. A gap can exist between this portion of the frame serving as the radiator and the rest of the middle frame 19 to ensure a good radiation environment for the antenna radiator. In some embodiments, the middle frame 19 can have an aperture in this portion of the frame serving as the radiator to facilitate antenna radiation.

[0104] Alternatively, the frame 11 may not be considered as part of the middle frame 19. In some embodiments, the frame 11 may be connected to the middle frame 19 and formed integrally. In another embodiment, the frame 11 may include a protrusion extending inward to connect to the middle frame 19, for example, by means of shrapnel, screws, welding, etc. The protrusion of the frame 11 can also be used to receive a feed signal, so that at least a portion of the frame 11 serves as a radiator of the antenna to receive / transmit radio frequency signals. There may be a gap between this part of the frame that serves as the radiator and the middle frame 19, thereby ensuring that the antenna radiator has a good radiation environment, so that the antenna has a good signal transmission function.

[0105] The back cover 21 can be made of metal, non-conductive materials such as glass or plastic, or a combination of conductive and non-conductive materials. In some embodiments, the conductive back cover 21 can replace the middle frame 19 and integrate with the frame 11 to support the electronic components within the device.

[0106] In some embodiments, the middle frame 19 and / or the conductive parts in the back cover 21 can serve as a reference ground for the electronic device 10, wherein the frame 11, PCB 17, etc. of the electronic device can be grounded through electrical connection with the middle frame.

[0107] The antenna of the electronic device 10 can also be set in the frame 11. When the frame 11 of the electronic device 10 is a non-conductive material, the antenna radiator can be located in the electronic device 10 and arranged along the frame 11. For example, the antenna radiator is set close to the frame 11 to minimize the volume occupied by the antenna radiator and be closer to the outside of the electronic device 10 to achieve better signal transmission effect. It should be noted that the antenna radiator is set close to the frame 11 means that the antenna radiator can be set close to the frame 11, or it can be set close to the frame 11, for example, there can be a certain small gap between the antenna radiator and the frame 11.

[0108] The antenna of electronic device 10 may also be disposed within the housing, such as a bracket antenna or millimeter-wave antenna (not shown in FIG1 ). The clearance for the antenna disposed within the housing can be provided by a slot / opening in any of the middle frame, and / or the frame, and / or the back cover, and / or the display screen, or by a non-conductive gap / aperture formed between any of these. The antenna clearance ensures the antenna's radiation characteristics. It should be understood that the antenna clearance can be a non-conductive area formed by any conductive component within electronic device 10, through which the antenna radiates signals to the outside world. In some embodiments, antenna 40 may be in the form of an antenna based on a flexible printed circuit (FPC), an antenna based on laser-direct-structuring (LDS), or a microstrip disk antenna (MDA). In some embodiments, the antenna may also be a transparent structure embedded within the screen of electronic device 10, such that the antenna is a transparent antenna unit embedded within the screen of electronic device 10.

[0109] FIG. 1 only schematically illustrates some components of the electronic device 10 , and the actual shapes, sizes, and structures of these components are not limited by FIG. 1 .

[0110] It should be understood that in the embodiments of the present application, the surface where the display screen of the electronic device is located can be considered as the front surface, the surface where the back cover is located can be considered as the back surface, and the surface where the frame is located can be considered as the side surface.

[0111] It should be understood that in the embodiments of the present application, when a user holds an electronic device (usually vertically and facing the screen), the electronic device is located at a position having a top, a bottom, a left side, and a right side. It should be understood that in the embodiments of the present application, when a user holds an electronic device (usually vertically and facing the screen), the electronic device is located at a position having a top, a bottom, a left side, and a right side.

[0112] With the continuous evolution of mobile communication technology, satellite communication has gradually become a key feature in mobile devices. However, the industrial design trend of electronic devices is towards larger screen-to-body ratios and multiple cameras. This has significantly reduced antenna clearance, making layout space increasingly limited.

[0113] An embodiment of the present application provides an electronic device, which includes an antenna. The antenna uses a conductive part of the frame of the electronic device as a radiator, which can enhance the user experience when performing satellite navigation or communication.

[0114] First, Figures 2 and 3 will introduce the two antenna modes involved in this application. Figure 2 is a schematic diagram of the common-mode structure of an antenna provided in this application and the corresponding current and electric field distribution. Figure 3 is a schematic diagram of the differential-mode structure of another antenna provided in this application and the corresponding current and electric field distribution. The antenna radiators in Figures 2 and 3 are open at both ends, and their common-mode mode and differential-mode modes can be referred to as line common-mode mode and line differential-mode mode, respectively.

[0115] It should be understood that the “common-differential mode” or “CM-DM mode” in this application refers to a line common mode mode and a line differential mode mode generated on the same radiator.

[0116] 1. Wire common mode (CM) mode

[0117] (a) in Figure 2 shows that the radiator of the antenna 40 is open at both ends and is connected to a feeding circuit (not shown) at the middle position 41. In some embodiments, the feeding form of the antenna 40 adopts symmetrical feed. The feeding circuit can be connected to the middle position 41 of the antenna 40 through a feeding line 42. It should be understood that symmetrical feeding can be understood as one end of the feeding circuit being connected to the radiator and the other end being coupled to the floor for grounding, wherein the connection point between the feeding circuit and the radiator (feeding point) is located at the center of the radiator. The center of the radiator can be, for example, the midpoint of the geometric structure, or the midpoint of the electrical length (or an area within a certain range near the above midpoint).

[0118] The middle position 41 of the antenna 40 may be, for example, the geometric center of the antenna, or the midpoint of the electrical length of the radiator. For example, the connection between the feed line 42 and the antenna 40 covers the middle position 41 .

[0119] (b) in FIG2 shows the current and electric field distribution of the antenna 40. As shown in (b) in FIG2, the current is distributed in opposite directions on both sides of the middle position 41, for example, symmetrically; the electric field is distributed in the same direction on both sides of the middle position 41. As shown in (b) in FIG2, the current at the feed line 42 is distributed in the same direction. Based on the same direction distribution of the current at the feed line 42, the feeding shown in (a) in FIG2 can be called line CM feeding. Based on the opposite distribution of the current on both sides of the connection between the radiator and the feed line 42, the antenna mode shown in (b) in FIG2 can be called a line CM mode (also referred to as a CM mode for short, for example, for a linear antenna, the CM mode refers to a line CM mode). The current and electric field shown in (b) in FIG2 can be respectively referred to as the current and electric field of the line CM mode.

[0120] The current is stronger at the center 41 of the antenna 40 (the highest current point is near the center 41 of the antenna 40) and weaker at both ends of the antenna 40, as shown in FIG2(b). The electric field is weaker at the center 41 of the antenna 40 and stronger at both ends of the antenna 40.

[0121] 2. Line differential mode (DM) mode

[0122] As shown in FIG3( a ), the left and right ends of the two radiators of antenna 50 are open, and a feed circuit is connected at a center position 51. In some embodiments, antenna 50 uses an anti-symmetrical feed. One end of the feed circuit is connected to one of the radiators via a feed line 52, and the other end of the feed circuit is connected to the other radiator via a feed line 52. Center position 51 can be the geometric center of antenna 50 or the gap formed between the radiators.

[0123] It should be understood that the "center-antisymmetric feeding" mentioned in this application can be understood as the positive and negative poles of the feed unit being connected to two connection points near the aforementioned midpoint of the radiator. In some embodiments, the signals output by the positive and negative poles of the feed unit have the same amplitude but opposite phases, for example, a phase difference of 180°±10°.

[0124] Figure 3(b) shows the current and electric field distribution of antenna 50. As shown in Figure 3(b), the current is distributed in the same direction on both sides of the center position 51 of antenna 50, for example, in an antisymmetric distribution; the electric field is distributed in opposite directions on both sides of the center position 51. As shown in Figure 3(b), the current at the feed line 52 is distributed in opposite directions. Based on the opposite current distribution at the feed line 52, the feeding shown in Figure 3(a) can be referred to as linear DM feeding. Based on the current being distributed in the same direction on both sides of the connection between the radiator and the feed line 52, the antenna mode shown in Figure 3(b) can be referred to as a linear DM mode (or simply a DM mode, for example, for a linear antenna, a DM mode refers to a linear DM mode). The current and electric field shown in Figure 3(b) can be referred to as the current and electric field of the linear DM mode, respectively. It should be understood that based on the current being distributed in the same direction on both sides of the connection between the radiator and the feed line 52, the antenna mode shown in Figure 3(b) can also be referred to as a half-antenna mode, a half-wavelength mode, or simply a half-mode.

[0125] In some embodiments, in the linear DM mode, or half mode, the current is stronger at the middle position 51 of the antenna 50 (the highest current point is near the middle position 51 of the antenna 50) and weaker at the ends of the antenna 50, as shown in FIG3(b). The electric field is weaker at the middle position 51 of the antenna 50 and stronger at the ends of the linear antenna 50.

[0126] It should be understood that the antenna radiator can be understood as a metal structural member that generates radiation, and the number of the radiator can be one, as shown in FIG2 , or two, as shown in FIG3 , which can be adjusted according to actual design or production needs. For example, for the line CM mode, two radiators can be used as shown in FIG3 , with the two ends of the two radiators arranged opposite to each other and separated by a gap. A symmetrical feeding method is adopted at the two ends close to each other, for example, the same feed source signal is fed into the two ends of the two radiators close to each other, and an effect similar to the antenna structure shown in FIG2 can also be obtained. Correspondingly, for the line DM mode, one radiator can be used as shown in FIG2 , with two feeding points set in the middle of the radiator and an antisymmetric feeding method is adopted. For example, if two symmetrical feeding points on the radiator are fed with signals with the same amplitude and opposite phases, an effect similar to the antenna structure shown in FIG3 can also be obtained.

[0127] 3. Line CM-DM mode

[0128] FIG2 and FIG3 above respectively show that when both ends of the radiator are open, a line CM mode and a line DM mode are generated by adopting different feeding methods.

[0129] When the antenna uses asymmetric feeding (the feeding point is offset from the center of the radiator, including side feeding or offset feeding), or the radiator's grounding point (where it couples with the floor) is asymmetric (the grounding point is offset from the center of the radiator), the antenna can simultaneously produce a first resonance and a second resonance, corresponding to the linear CM mode and the linear DM mode, respectively. For example, the first resonance corresponds to the linear CM mode, with the current and electric field distributions shown in Figure 2(b). The second resonance corresponds to the linear DM mode, with the current and electric field distributions shown in Figure 3(b).

[0130] FIG4 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0131] As shown in FIG. 4 , the conductive frame 11 of the electronic device 10 may include a first side 131 and a second side 132 intersecting at an angle, and the length of the first side 131 is greater than the length of the second side 132 .

[0132] The second side 132 may have a first position 101 and a second position 102, and the frame 11 may have gaps at the first position 101 and the second position 102. The radiator 105 of the antenna 100 may include a conductive portion of the frame between the first position 101 and the second position 102.

[0133] In some embodiments, the first frame 105 is symmetrical along the virtual axis of the second side 132, and the lengths of the second sides 132 on both sides of the virtual axis are the same. Due to certain errors in engineering applications, the first frame 105 can be considered symmetrical along the virtual axis of the second side 132 when the ratio of the distances between the first position 101 and the second position 102 and the virtual axis is greater than or equal to 90% and less than or equal to 110%.

[0134] It should be understood that, for an antenna, as the structure of the antenna becomes more symmetrical (for example, the radiator 105 is located at the center of the second side 132 ), the radiation characteristics of the antenna are improved (for example, bandwidth, radiation efficiency, etc.).

[0135] Figures 5 and 6 are simulation results of the antenna 100 in the electronic device 10 shown in Figure 4. Figure 5 shows the S-parameter simulation results of the antenna 100 in the electronic device 10 shown in Figure 4. Figure 6 shows the system efficiency and radiation efficiency simulation results of the antenna 100 in the electronic device 10 shown in Figure 4.

[0136] As shown in Figure 5, when the antenna shown in Figure 4 is fed using the feeding methods shown in Figures 2 and 3, it can generate a linear CM mode and a linear DM mode, respectively. In both the linear CM and linear DM modes, the antenna can resonate near the target frequency band (e.g., 2 GHz).

[0137] It should be understood that for the sake of simplicity of discussion, in this embodiment, only the line CM mode and the line DM mode are excited separately as an example. Referring to the above embodiment, the line CM mode and the line DM mode can also be excited simultaneously by asymmetric feeding (the feeding point deviates from the middle position of the radiator, including side feeding or offset feeding), and / or the grounding point of the radiator (the coupling point with the floor) is asymmetric (the grounding point deviates from the middle position of the radiator).

[0138] As shown in Figure 6, when the first frame (radiator) is symmetrical along the virtual axis of the second side (located at the center of the second side), at the resonance point (2GHz), the radiation efficiency of the CM mode is -4.42dB, the system efficiency is -4.47dB, and the radiation efficiency in the DM mode is -1.27dB, and the system efficiency is -1.39dB.

[0139] It should be understood that when the first frame is located at the center of the second side, the transverse mode can be excited (accounting for more than the longitudinal mode), but the currents corresponding to the transverse mode will cancel each other out. Therefore, the system efficiency and radiation efficiency of the CM mode are low.

[0140] As for the DM mode, in the DM mode, the radiation of the antenna is mainly generated by the radiator (first frame). When it is set at the center of the second side, the system efficiency and radiation efficiency are better than those in the CM mode.

[0141] FIG7 is a schematic diagram of an electronic device 10 provided in an embodiment of the present application.

[0142] As shown in FIG. 7 , the electronic device 10 includes a frame 11 , an antenna 200 , a floor 300 , and a controller 310 .

[0143] The frame 11 may include a first side 131 and a second side 132 intersecting at an angle, and the length of the first side 131 is greater than the length of the second side 132 .

[0144] It should be understood that the technical solutions provided in the embodiments of the present application can also be applied to foldable electronic devices. For the sake of simplicity, only an electronic device including a single display screen (non-foldable) is used as an example for description. In a foldable electronic device, the first side 131 and the second side 132 can be understood as the first side and the second side corresponding to the foldable electronic device when it is in a folded state.

[0145] The second side 132 may have a first position 201 and a second position 202. The frame 11 may have a first gap and a second gap at the first position 201 and the second position 202, respectively.

[0146] In some embodiments, the width of the gaps provided at the first position 201 and the second position 202 is greater than or equal to 0.2 mm and less than or equal to 1.5 mm. The gaps provided in the embodiments of the present application may be within the above range. It should be understood that the width of the gap can be understood as the distance between the ends of the frame on both sides of the gap.

[0147] The antenna 200 includes a radiator 210 , a first feeding circuit 221 , a second feeding circuit 222 , and a tuning circuit 230 .

[0148] The radiator 210 is a conductive portion of the frame 11 at the first position 201 and the second position 202. The first end (the end close to the first position 201) and the second end (the end close to the second position 202) of the radiator 210 are open ends.

[0149] Radiator 210 includes a feed point 220. A first feed circuit 221 and a second feed circuit 222 are coupled to feed point 220. First feed circuit 221 is configured to transmit electrical signals in a first frequency band. Second feed circuit 222 is configured to transmit electrical signals in a second frequency band. The first frequency band and the second frequency band are different.

[0150] The first frequency band includes a satellite communication frequency band. In some embodiments, the first frequency band may include a transmit frequency band and / or a receive frequency band in satellite communication. For example, in the Tiantong satellite system, the first frequency band may include 1980MHz-2010MHz (transmit frequency band) and 2170MHz-2200MHz (receive frequency band). In the Beidou satellite system, the first frequency band may include 1610MHz-1626.5MHz (transmit frequency band) and 2483.5MHz-2500MHz (receive frequency band). Alternatively, it may also be applied to other satellite communication systems, and the embodiments of the present application are not limited thereto.

[0151] In some embodiments, when the antenna 200 operates in the Tiantong satellite system (the operating frequency band of the antenna 200 includes at least part of the frequency band in the Tiantong satellite system), the electronic device 10 can perform voice communication through the antenna 200. In some embodiments, when the antenna 200 operates in the Beidou satellite system (the operating frequency band of the antenna 200 includes at least part of the frequency band in the Beidou satellite system), the electronic device 10 can send or receive pictures or short messages through the antenna 200.

[0152] It should be understood that, for the sake of simplicity of discussion, the electronic device 10 performing satellite communication described in the embodiments of the present application can be understood as the electronic device 10 can use the antenna 200 to send or receive pictures or short messages to or from the satellite, or the electronic device 10 can use the antenna 200 to perform voice communication via the satellite.

[0153] In some embodiments, the second frequency band may include at least part of a frequency band in near communication (NC), such as a WiFi band, a BT band, or a GPS band. Alternatively, the second frequency band may also include at least part of a frequency band in a cellular network, such as at least part of a low frequency band (LB) (698MHz-960MHz), at least part of a mid-frequency band (1710MHz-2170MHz), at least part of a high frequency band (2300MHz-2690MHz), or at least part of a sub-6G frequency band. Alternatively, the second frequency band may also be at least part of a frequency band in ultra-wideband (UWB) technology.

[0154] For the sake of simplicity, in the embodiment of the present application, only the example in which the first frequency band includes the satellite communication frequency band and the second frequency band includes the GPS frequency band is used for illustration.

[0155] The radiator 210 may further include a connection point 231 . The tuning circuit 230 is coupled between the ground plane 300 and the connection point 231 .

[0156] In some embodiments, tuning circuit 230 includes a switch. The switch can be used to switch between electronic components with different resistance, capacitance, or inductance values ​​coupled to connection point 231 in different circuit states. Alternatively, the switch can be in an open state, disconnecting the electronic component from connection point 231. Alternatively, the switch can directly couple floorboard 300 to the connection point, without any electronic components interposed between the two.

[0157] The controller 310 is electrically connected to the tuning circuit 230. The controller 310 is used to switch the circuit state of the tuning circuit 230 so that the antenna 200 operates in the first frequency band or the second frequency band.

[0158] It should be understood that according to the technical solution provided in the embodiment of the present application, the controller 310 can switch the circuit state of the tuning circuit 230 so that the antenna 200 operates in the first frequency band or the second frequency band, thereby realizing switching between different communication systems, thereby improving the radiation performance of the antenna 200 in different communication systems.

[0159] The controller 310 is used to switch the circuit state of the tuning circuit 230 so that the antenna 200 operates in the first frequency band or the second frequency band. This can be understood as switching the equivalent resistance, equivalent capacitance, or equivalent inductance between the connection point 231 and the floor 300 to cause the radiator 210 to generate a first resonance and a second resonance, respectively. The resonant point frequency of the first resonance is different from the resonant point frequency of the second resonance. The resonant frequency range of the first resonance includes the first frequency band, and the resonant frequency range of the second resonance includes the second frequency band, thereby causing the resonant frequency range of the first resonance to include the first frequency band or the second frequency band.

[0160] At the same time, in the structure of the above-mentioned antenna 200, the linear DM mode of the radiator 210 can be excited. It can be seen from the above embodiment that when the radiator 210 is arranged on the second side 132, the radiation efficiency and system efficiency of the resonance generated by the linear DM mode of the antenna 200 are high. Since the gain of the antenna is related to the directivity and efficiency (radiation efficiency and system efficiency) of the antenna, when the efficiency (radiation efficiency and system efficiency) of the antenna is improved, the directivity remains unchanged and the gain of the antenna can also be improved. Therefore, although the polarization characteristics of the radiation generated by the antenna 200 when the electronic device 10 communicates in the first frequency band (satellite frequency band) are similar to linear polarization, and there will be a loss of about 3dB when receiving circularly polarized electromagnetic waves, the antenna 200 has good efficiency (radiation efficiency and system efficiency).

[0161] Furthermore, when a user is performing satellite navigation or communication, the antenna's maximum radiation direction needs to be pointed toward the satellite to achieve alignment (establishing a communication connection with the satellite). In the technical solution provided in the embodiment of the present application, since the radiator 210 is located on the second side 132, the maximum radiation direction of the directional pattern generated by the antenna 200 is toward the top of the electronic device 10 (e.g., the y-direction). This allows the user to use the electronic device 10 for satellite navigation or communication in the first frequency band without changing the posture of holding the electronic device 10, thereby providing a good user experience.

[0162] In some embodiments, when the resonant frequency band of the first resonance and the resonant frequency band of the second resonance generated by the radiator 210 both include the first frequency band and the second frequency band, the resonant point frequency of the first resonance is close to the first frequency band, and the resonant point frequency of the second resonance is close to the second resonance, so that the antenna 200 has better radiation characteristics (for example, radiation efficiency) in both the first frequency band and the second frequency band.

[0163] In some embodiments, the frame 11 further includes a grounding point 241 , which is located between the first position 201 and the second position 202 . The frame 11 is coupled to the floor 300 at the grounding point 241 .

[0164] In some embodiments, the grounding point 241 may be located in the central region of the radiator 210. The central region includes the center of the radiator 210, and the radiators 210 on both sides of the center have the same length. The central region of the radiator 210 can be understood as the area within 5 mm of the center of the radiator 210.

[0165] It should be understood that the radiator 210 includes a ground point 241, and the radiator 210 can generate additional resonance in the linear CM mode. When the radiator 210 can simultaneously resonate in the linear CM mode and the linear DM mode, the proportion of the linear DM mode in the first frequency band (the resonant frequency band of the first resonance) can be increased. As a result, the antenna 200 radiates primarily in the linear DM mode in the first frequency band (the resonant frequency band of the first resonance), thereby improving the radiation characteristics of the antenna 200 in the first frequency band (for example, radiation efficiency and system efficiency).

[0166] In some embodiments, the feed point 220 and the connection point 231 are located between the first location 201 and the ground point 241 .

[0167] In some embodiments, the length of the radiator 210 between the connection point 231 and the first location 201 is less than or equal to 5 mm.

[0168] It should be understood that the radiator 210 has a stronger electric field at the open end (the first gap at the first position 201 ), and the tuning circuit 230 has a better tuning range in the region with a stronger electric field.

[0169] In some embodiments, the antenna 200 further includes a grounding element, wherein a first end of the grounding element is coupled to the ground point 241 , and a second end of the grounding element 240 is coupled to the floor 300 .

[0170] In some embodiments, the electronic device 10 includes the above-mentioned middle frame, and the middle frame includes the above-mentioned frame 11 and the middle plate. In some embodiments, the middle plate is electrically connected to the floor 300 through multiple locations. In some embodiments, the middle plate can be regarded as a part of the floor 300. In some embodiments, the frame 11 is electrically connected to the middle plate through a connecting rib structure (such as a grounding member, not shown in the figure). The connecting rib structure (such as a grounding member, not shown in the figure) is connected between the frame and the middle plate, and is integrally formed with the frame and the middle plate. For the sake of simplicity of discussion, the grounding members described in the embodiments of the present application can be understood accordingly.

[0171] It should be understood that the grounding member, the frame 11 and the middle plate can be milled out of the same metal member, thereby reducing errors during assembly and improving the radiation characteristics (eg, bandwidth) of the antenna 200 .

[0172] In some embodiments, the clearance L1 of the antenna 200 can be less than or equal to 1.5 mm, as shown in Figure 8. In some embodiments, the clearance L1 of the antenna 200 can be greater than or equal to 0.5 mm.

[0173] It should be understood that the clearance of the antenna 200 can be understood as the minimum distance between the radiator 210 and metal or electronic components close to the radiator 210. As the clearance of the antenna 200 decreases, the radiation performance (eg, bandwidth) of the antenna 200 decreases.

[0174] In the electronic device 10, the clearance of the antenna 200 can be the distance L1 between the radiator 210 and the electronic component (for example, the camera 250), or it can be the distance L1 between the radiator 210 and the metal layer in the display screen (display module) 15, or it can be the distance L1 between the radiator and the metal layer (not shown) in the PCB, which can be determined based on the actual production or design layout of the electronic device 10.

[0175] In some embodiments, a dimension L2 of the radiator 210 along the first direction is less than or equal to 3.5 mm and greater than or equal to 1.5 mm, as shown in Figure 8. The first direction is the thickness direction of the electronic device 10 (eg, the z direction).

[0176] It should be understood that when the thickness of the radiator 210 (eg, the dimension L2 along the first direction) decreases, the radiation performance (eg, bandwidth) of the antenna 200 decreases.

[0177] The technical solution provided in the embodiment of the present application can improve the radiation performance of the antenna 200 in different communication systems by switching between different communication systems when the clearance of the antenna 200 is small and the thickness of the radiator 210 is small.

[0178] For simplicity of discussion, in this embodiment of the present application, only the frame 11 including the conductive portion 251 (e.g., aluminum) and the insulating portion 252 (e.g., plastic) is used as an example for description. In actual production or design, the frame 11 can also be designed as an all-metal design, and this embodiment of the present application does not limit this.

[0179] In some embodiments, the controller 310 switches the tuning circuit 230 to a first circuit state or a second circuit state according to the working state of the electronic device 10 , so that the antenna 200 operates in the first frequency band or the second frequency band.

[0180] When the tuning circuit 230 is in the first circuit state, the radiator 210 is used to generate a first resonance whose resonant frequency range includes the first frequency range. When the tuning circuit 230 is in the second circuit state, the radiator 210 is used to generate a second resonance whose resonant frequency range includes the second frequency range.

[0181] It should be understood that the circuit state of the tuning circuit 230 can be understood as the equivalent resistance value, equivalent capacitance value or equivalent inductance value between the connection point 231 and the floor 300. The resonance point frequency of the resonance generated by the radiator 210 can be adjusted through different circuit states.

[0182] In some embodiments, the antenna 200 may further include a switch 240 . A common port of the switch 240 is coupled to the feed point 220 , a first port of the switch 240 is coupled to the first feed circuit 221 , and a second port of the switch 240 is coupled to the second feed circuit 222 .

[0183] It should be understood that the switch 240 can switch the electrical signal fed into the radiator 210. The switch 240 can prevent crosstalk between the feed circuits (for example, an electrical signal transmitted in the first feed circuit 221 is fed into the second feed circuit 222). In some embodiments, when the tuning circuit 230 is in a first circuit state, the common port of the switch 240 is electrically connected to the first port, and the first feed circuit 221 is fed with an electrical signal of a first frequency. When the tuning circuit 230 is in a second circuit state, the common port of the switch 240 is electrically connected to the second port, and the second feed circuit 222 is fed with an electrical signal of a second frequency.

[0184] In some embodiments, taking the example where the first frequency band includes a satellite communication frequency band and the second frequency band includes a GPS frequency band, the working status of the electronic device 10 may include the working status of services based on geographic location data (LBS) and the working status of satellite communication.

[0185] In some embodiments, the working status of LBS may include at least one of the following: positioning off, continuous positioning-outdoor L1 weak signal, continuous positioning-outdoor L1 strong signal, continuous positioning-outdoor L5 weak signal, continuous positioning-outdoor L5 strong signal, continuous positioning-indoor positioning, continuous positioning-indoor and outdoor identification, single-point positioning-foreground, single-point positioning-background.

[0186] In some embodiments, the operating status of satellite communication may include at least one of the following: satellite activated, satellite inactivated, satellite ready state, and satellite transceiver state.

[0187] In some embodiments, the controller 310 can switch the circuit state of the tuning circuit 230 based on a first score and a second score. The first score is the score corresponding to the operating state of the electronic device 10 when the antenna 200 operates in the first frequency band. The second score is the score corresponding to the operating state of the electronic device 10 when the antenna 200 operates in the second frequency band.

[0188] In the embodiments of the present application, the electronic device 10 may have multiple different operating states simultaneously, and the first score and the second score may be scores corresponding to different operating states of the controller 310. For example, different operating states may correspond to different scores, and in some embodiments, different scores correspond to different priorities, with higher scores indicating higher priorities.

[0189] In some embodiments, the electronic device 10 may prioritize operating in a higher-priority operating state. For example, when the antenna 200 operates in the second frequency band, if the first score is greater than or equal to the second score, the controller 310 may switch the circuit state of the tuning circuit 230 to the first circuit state, causing the antenna 200 to operate in the first frequency band; if the first score is less than the second score, the antenna 200 may continue to operate in the second frequency band. When the antenna 200 operates in the first frequency band, if the first score is less than the second score, the controller 310 may switch the circuit state of the tuning circuit 230 to the second circuit state, causing the antenna 200 to operate in the second frequency band; if the first score is greater than or equal to the second score, the antenna 200 may continue to operate in the first frequency band.

[0190] In some embodiments, the satellite communication system of the electronic device 10 may be in one or more working states, and the controller 310 may determine a first score based on the scores corresponding to the one or more working states of the satellite communication system. For example, the controller 310 may determine the highest score among the scores corresponding to the one or more working states as the first score; the LBS system of the electronic device 10 may also be in one or more working states, and the controller 310 may determine a second score based on the scores corresponding to the one or more working states of the LBS system. For example, the controller 310 may determine the highest score among the scores corresponding to the one or more working states as the second score.

[0191] The working status of the electronic device 10 and the score of the working status may be preset in the electronic device 10 or stored in a server and acquired by the electronic device 10 in real time. This embodiment of the present application does not impose any restrictions on this.

[0192] In some embodiments, the electronic device 10 further includes a modem 320 , as shown in FIG9 . A first port of the modem 320 is electrically connected to the controller 310 , and a second port of the modem 320 is electrically connected to the tuning circuit 230 .

[0193] It should be understood that the modem 320 is used to process the electrical signal sent or received by the antenna, which can be understood as modulating the electrical signal transmitted by the feeding circuit, such as up-converting, or modulating the electrical signal received by the antenna, such as down-converting.

[0194] In some embodiments, the controller 310 sends a first signal to the modem 320, where the first signal is used to indicate the circuit state of the tuning circuit 230. The modem 320 switches the circuit state of the tuning circuit 230 according to the first signal.

[0195] In some embodiments, the electronic device 10 may further include a first chip 311 . A first port of the first chip 311 is electrically connected to the controller 310 , and a second port of the first chip 311 is electrically connected to the first feeding circuit 221 .

[0196] It should be understood that the first chip 311 may be a satellite communication-related chip, configured to process signals related to the first frequency band and modulate the signals in the first frequency band. In some embodiments, the first chip 311 may also send information related to current satellite communications to the controller 310, such as satellite activation, satellite inactivation, satellite in standby state, satellite in transceiver state, and satellite communication frequency band.

[0197] In some embodiments, the electronic device 10 may further include a second chip 312 . A first port of the second chip 312 is electrically connected to the controller 310 , and a second port of the second chip 312 is electrically connected to the second feeding circuit 222 .

[0198] It should be understood that the second chip 312 may be an NC-related chip for processing related signals of the second frequency band and modulating the signals of the second frequency band. In some embodiments, the second chip 312 may also send relevant information about the current NC to the controller 310, such as positioning off, continuous positioning - outdoor L1 weak signal, continuous positioning - outdoor L1 strong signal, continuous positioning - outdoor L5 weak signal, continuous positioning - outdoor L5 strong signal, continuous positioning - indoor positioning, continuous positioning - indoor and outdoor identification, single point positioning - front desk, single point positioning - back desk, etc.

[0199] In some implementations, the controller 310 may be an application processor (AP).

[0200] It should be understood that the functions implemented by the controller 310 in the above embodiments can all be implemented by a module / process in the AP.

[0201] In some embodiments, the electronic device 10 may further include a system-on-chip (SoC). The SoC may include at least two chips as described in the above embodiments. For example, the SoC includes an AP and a first chip 311. The AP and the first chip 311 are integrated into the same chip, reducing the required layout space.

[0202] It should be understood that the embodiments of the present application do not limit the chips integrated in the SoC and can be adjusted according to actual production or design.

[0203] In some embodiments, the controller may include a control module 401 , as shown in FIG10 .

[0204] It should be understood that the control module 401 can be used to monitor the communication status between the first chip 311 and the second chip 312 .

[0205] In some embodiments, when the control module 401 monitors whether the first chip 311 is started (in place / reset), the antenna 200 can still operate in the second frequency band, and the electronic device 10 can communicate in the second frequency band.

[0206] In some embodiments, when the control module 401 monitors that the first chip 311 is in the startup process, the control module 401 makes a decision and can determine the first score and the second score in the above-described embodiment. When the first score is greater than the second score, the control module 401 sends a first signal to the modem 320. The first signal is used to indicate that the tuning circuit is in the first circuit state and the operating frequency band of the antenna 200 is switched to the first frequency band. Based on the first signal, the modem 320 controls the tuning circuit to be in the first circuit state, and the operating frequency band of the antenna 200 is switched to the first frequency band.

[0207] In some embodiments, when the call module 402 in the controller detects that the first chip 311 is ready to transmit and receive signals, the call module 402 sends a second signal to the modem 320 , where the second signal is used to instruct to turn off a switch on a cellular-related circuit.

[0208] In some embodiments, when the second chip 312 detects that the first chip 311 is ready to transmit and receive signals, it controls the second feeding circuit to be in a path isolation state (to prevent crosstalk of the first frequency band signal and damage to electronic components on the circuit).

[0209] In some embodiments, when the call module 402 in the controller detects that the first chip 311 has completed sending and receiving signals, it sends a third signal to the modem 320. The third signal is used to instruct to start the switch on the cellular-related circuit so that the electronic device can communicate on the cellular network.

[0210] In some embodiments, when the control module 401 monitors that the first chip 311 has completed signal transmission and reception, the control module 401 sends a fourth signal to the modem 320. The fourth signal is used to indicate that the tuning circuit is in the second circuit state and the operating frequency band of the antenna 200 is switched to the second frequency band. The modem 320 controls the tuning circuit to be in the second circuit state based on the second signal, and the operating frequency band of the antenna 200 is switched to the second frequency band.

[0211] FIG11 is a schematic diagram of an antenna switching method 400 provided in an embodiment of the present application.

[0212] As shown in FIG11 , the switching method 400 includes the following steps:

[0213] S410, the AP receives first information, where the first information is used to instruct the first chip to start (be in place / reset).

[0214] In some implementations, the control module in the AP receives the first information sent by the first chip. In some implementations, in this step, the antenna can still operate in the second frequency band, and the electronic device can communicate in the second frequency band.

[0215] In some implementations, before the first chip is started, the antenna may be set to operate in the second frequency band by default, and the electronic device may communicate in the second frequency band.

[0216] S420: The AP sends second information to the modem, where the second information is used to instruct the modem to switch the tuning circuit to the first circuit state.

[0217] In some embodiments, a control module in the AP makes a decision to determine the first score and the second score in the above embodiment. When the first score is greater than the second score, the AP sends the second information to the modem.

[0218] In some embodiments, the modem controls the tuning circuit to be in the first circuit state according to the second information, the operating frequency band of the antenna 200 is switched to the first frequency band, and the electronic device can communicate in the first frequency band.

[0219] S430: The AP receives third information, where the third information is used to indicate that the first chip has completed signal transmission and reception.

[0220] In some implementations, the control module in the AP receives the third information sent by the first chip.

[0221] In some embodiments, before the first chip transmits and receives signals, the switching method 400 further includes: the AP (e.g., a call module) sending fifth information to the modem, where the fifth signal is used to instruct the modem to turn off a switch on a cellular-related circuit. The modem turns off the switch on the cellular-related circuit based on the fifth information.

[0222] In some embodiments, before the first chip transmits and receives signals, the switching method 400 further includes: the second chip controls the second feed circuit to be in a path isolation state (to prevent crosstalk of the first frequency band signal and damage to electronic components on the circuit) (for example, disconnecting active devices in the second feed circuit).

[0223] S440: The AP sends fourth information to the modem, where the fourth information is used to instruct the modem to switch the tuning circuit to the second circuit state.

[0224] In some embodiments, the modem controls the tuning circuit to be in the second circuit state according to the fourth information, the working frequency band of the antenna is switched to the second frequency band, and the electronic device can communicate in the second frequency band.

[0225] In some embodiments, after the first chip completes signal transmission and reception, the switching method 400 further includes: the AP (e.g., a call module) sending sixth information to the modem, the sixth signal being used to instruct the modem to activate a switch on a cellular-related circuit. The modem activates the switch on the cellular-related circuit based on the sixth information, and the electronic device can communicate via the cellular network.

[0226] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An electronic device, characterized in that: include: floor; A frame, comprising a first side and a second side intersecting at an angle, the length of the first side being greater than the length of the second side, the second side comprising a first position and a second position, and the frame having a first gap and a second gap respectively formed at the first position and the second position; Antenna, including: a radiator, the radiator being a conductive portion of the frame between the first position and the second position, A first feeding circuit and a second feeding circuit, the radiator comprising a feeding point, the first feeding circuit and the second feeding circuit being coupled to the feeding point, the first feeding circuit being used to transmit an electrical signal in a first frequency band, and the second feeding circuit being used to transmit an electrical signal in a second frequency band; A tuning circuit, the radiator further comprising a connection point, the tuning circuit being coupled and connected between the floor and the connection point; A controller, the controller being electrically connected to the tuning circuit, and the controller being used to switch a circuit state of the tuning circuit so that the antenna operates in the first frequency band or the second frequency band; The first frequency band includes a satellite communication frequency band, and the second frequency band includes at least part of a frequency band in short-range communication or at least part of a frequency band in a cellular network.

2. The electronic device according to claim 1, characterized in that: The frame further includes a grounding point, which is located between the first position and the second position, and the frame is coupled to the floor at the grounding point.

3. The electronic device according to claim 2, characterized in that: The antenna further includes a grounding member, a first end of the grounding member is coupled to the grounding point, a second end of the grounding member is coupled to the floor, and the grounding member is integrally formed with the frame.

4. The electronic device according to claim 2, characterized in that: The feed point and the connection point are located between the first position and the ground point.

5. The electronic device according to any one of claims 1 to 3, characterized in that: The antenna also includes and switch; The common port of the switch is coupled to the feeding point, the first port of the switch is coupled to the first feeding circuit, and the second port of the switch is coupled to the second feeding circuit.

6. The electronic device according to any one of claims 1 to 5, characterized in that: The clearance of the antenna is less than or equal to 1.5 mm.

7. The electronic device according to any one of claims 1 to 6, characterized in that: The clearance of the antenna is greater than or equal to 0.5 mm.

8. The electronic device according to any one of claims 1 to 7, characterized in that: The size of the radiator along a first direction is less than or equal to 3.5 mm and greater than or equal to 1.5 mm, and the first direction is a thickness direction of the electronic device.

9. The electronic device according to any one of claims 1 to 8, characterized in that: The controller is used to switch the antenna to operate in the first frequency band or the second frequency band, including: The controller switches the tuning circuit to a first circuit state or a second circuit state according to the working state of the electronic device; Based on the tuning circuit being in a first circuit state, the radiator is used to generate a first resonance, and the resonance frequency band of the first resonance includes the first frequency band; Based on the tuning circuit being in the second circuit state, the radiator is used to generate a second resonance, and the resonance frequency band of the second resonance includes the second frequency band.

10. The electronic device according to claim 9, characterized in that: The controller switches the tuning circuit to a first circuit state or a second circuit state according to the working state of the electronic device, including: When the first score is greater than or equal to the second score, the controller switches the tuning circuit to the first circuit state, the first score being the score corresponding to the working state of the electronic device when the antenna works in the first frequency band, and the second score being the score corresponding to the working state of the electronic device when the antenna works in the second frequency band; When the first fraction is less than the second fraction, the controller switches the tuning circuit to a second circuit state.

11. The electronic device according to claim 9 or 10, characterized in that: The working status includes at least one of the following: Positioning off, continuous positioning - outdoor L1 weak signal, continuous positioning - outdoor L1 strong signal, continuous positioning - outdoor L5 weak signal, continuous positioning - outdoor L5 strong signal, continuous positioning - indoor positioning, continuous positioning - indoor and outdoor identification, single point positioning - foreground, single point positioning - background, satellite activated, satellite not activated, satellite ready status, satellite transmit and receive status.

12. The electronic device according to any one of claims 9 to 11, characterized in that: The electronic device comprises a modem, a first port of the modem is electrically connected to the controller, and a second port of the modem is electrically connected to the tuning circuit.

13. The electronic device according to claim 12, characterized in that: The controller switches the tuning circuit to a first circuit state or a second circuit state according to the working state of the electronic device, including: The controller sends a first signal to the modem, wherein the first signal is used to indicate a circuit state of the tuning circuit; The modem switches a circuit state of the tuning circuit according to the first signal.

14. The electronic device according to claim 13, characterized in that: At the resonance point of the first resonance, the currents on the radiator are in the same direction.

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