An electronic device

Abstract

The present application provides an electronic device, the electronic device includes an antenna, the antenna uses a conductive part of a frame of the electronic device as a radiator. The antenna includes a first radiator and a second radiator. The first radiator includes a conductor part of the frame between a first position and a second position. The second radiator includes a conductor part of the frame between the second position and a third position. The frame is provided with a gap at the first position, the second position and the third position. Wherein, the first position and the second position are located at the top of the electronic device.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wireless communication, and in particular to an electronic device. BACKGROUND

[0002] At present, the existing terminal electronic device uses a frame as an antenna radiator. For example, in a satellite navigation or satellite communication system, the frame radiator is mainly used to form a linear polarization antenna. When a user performs satellite navigation or satellite communication, the maximum radiation direction of the antenna needs to be pointed to a satellite to realize pointing to a satellite (establishing a communication connection with the satellite). However, the maximum radiation direction of the linear polarization antenna formed by the frame radiator is perpendicular to the display screen of the electronic device, and the user needs to face the screen to the sky when performing satellite navigation or communication, which causes great inconvenience in use. SUMMARY

[0003] The present application provides an electronic device, which comprises an antenna, and the antenna uses a conductive part of a frame of the electronic device as a radiator.

[0004] In a first aspect, an electronic device is provided, comprising: a frame, comprising a first position, a second position and a third position arranged in sequence, the frame being provided with a first slit, a second slit and a third slit at the first position, the second position and the third position respectively, the frame further 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 first position and the second position being located on the second side, and the third position being located on the first side; an antenna, comprising: a first radiator and a second radiator, the first radiator being a conductive part of the frame between the first position and the second position, and the second radiator being a conductive part of the frame between the second position and the third position; a first feed circuit, the first radiator or the second radiator comprising a first feed point, the first feed point being located on the second side, and the first feed circuit being coupled with the first feed point; a first tuning circuit and a second tuning circuit, the first radiator comprising a first connection point, the second radiator comprising a second connection point, the first tuning circuit being coupled with the second connection point, and the second tuning circuit being coupled with the first connection point.

[0005] In combination with the first aspect, in some implementations of the first aspect, the length of a first part of the second radiator on the first side is greater than or equal to one half of the length of a second part of the second radiator on the second side, and less than or equal to three eighths of the length of the second part.

[0006] With reference to the first aspect, in some implementations of the first aspect, the first tuning circuit is in a first circuit state, the first radiator is configured to generate a first resonance, a resonance frequency band of the first resonance includes a first frequency band; the second tuning circuit is in the first circuit state, the second radiator is configured to generate a second resonance, a resonance frequency band of the second resonance includes a second frequency band.

[0007] With reference to the first aspect, in some implementations of the first aspect, the first feeding circuit includes a first radio frequency channel and a second radio frequency channel, the first radio frequency channel is configured to feed a signal of the first frequency band, the second radio frequency channel is configured to feed a signal of the second frequency band.

[0008] With reference to the first aspect, in some implementations of the first aspect, the antenna further includes a second feeding circuit; the first radiator includes the first feeding point, the second radiator includes a second feeding point, the second feeding point is located at the second side, the second feeding circuit is coupled with the second feeding point.

[0009] With reference to the first aspect, in some implementations of the first aspect, at a resonance point of the first resonance, currents on the first radiator are in the same direction; at a resonance point of the second resonance, currents on the second radiator are in the same direction.

[0010] With reference to the first aspect, in some implementations of the first aspect, the electronic device further includes a ground plate; the bezel further includes a first grounding point and a second grounding point, the bezel is coupled with the ground plate at the first grounding point and the second grounding point, the first grounding point is located between the first feeding point and the first connecting point, the second grounding point is located between the second feeding point and the second connecting point.

[0011] With reference to the first aspect, in some implementations of the first aspect, the antenna further includes a third tuning circuit and a fourth tuning circuit; the first radiator includes a third connecting point, the second radiator includes a fourth connecting point, the first grounding point is located between the first connecting point and the third connecting point, the second grounding point is located between the second connecting point and the fourth connecting point, the third tuning circuit is coupled with the third connecting point, the fourth tuning circuit is coupled with the fourth connecting point.

[0012] With reference to the first aspect, in some implementations of the first aspect, the first tuning circuit and the third tuning circuit are in a first circuit state, the first radiator is configured to generate a first resonance and a third resonance, a resonance point frequency of the third resonance is lower than a resonance point frequency of the first resonance; the second tuning circuit and the fourth tuning circuit are in the first circuit state, the second radiator is configured to generate a second resonance and a fourth resonance, a resonance point frequency of the fourth resonance is lower than a resonance point frequency of the second resonance.

[0013] With reference to the first aspect, in some implementations of the first aspect, a frequency difference between a resonance point of the first resonance and a resonance point of the third resonance is greater than or equal to 100 MHz and less than or equal to 300 MHz, and / or a frequency difference between a resonance point of the second resonance and a resonance point of the fourth resonance is greater than or equal to 100 MHz and less than or equal to 300 MHz.

[0014] With reference to the first aspect, in some implementations of the first aspect, a frequency difference between a resonance point of the third resonance and a resonance point of the second resonance is greater than or equal to 200 MHz and less than or equal to 500 MHz.

[0015] With reference to the first aspect, in some implementations of the first aspect, the electronic device further includes a first ground member, the bezel is coupled to the floor at the first ground point through the first ground member; a width of the first ground member connected to the bezel is greater than or equal to 2 mm and less than or equal to 8 mm.

[0016] With reference to the first aspect, in some implementations of the first aspect, the electronic device further includes a second ground member, the bezel is coupled to the floor at the second ground point through the second ground member; a width of the second ground member connected to the bezel is greater than or equal to 2 mm and less than or equal to 12 mm.

[0017] In a second aspect, an electronic device is provided, comprising: a frame comprising a first position, a second position, a third position and a fourth position arranged in sequence, the frame being provided with a first slit, a second slit, a third slit and a fourth slit at the first position, the second position, the third position and the fourth position respectively, the frame further comprising a first side, a second side and a third side, the first side and the third side being angularly intersected with the second side, the first side having a length greater than that of the second side, the third side having a length greater than that of the second side, the first position and the second position being located on the second side, the third position being located on the first side, and the fourth position being located on the third side; an antenna comprising: a first radiator and a second radiator, the first radiator being a conductive part of the frame between the first position and the fourth position, the second radiator being a conductive part of the frame between the second position and the third position, a first feed circuit and a second feed circuit, the first radiator comprising a first feed point, the second radiator comprising a second feed point, the first feed point and the second feed point being located on the second side, the first feed circuit being coupled with the first feed point, and the second feed circuit being coupled with the second feed point, a first tuning circuit and a second tuning circuit, the first radiator comprising a first connection point, the second radiator comprising a second connection point, the first tuning circuit being coupled with the second connection point, and the second tuning circuit being coupled with the first connection point.

[0018] With reference to the second aspect, in some implementations of the second aspect, a length of a first portion of the first radiator on the first side is greater than or equal to one half of a length of a second portion of the first radiator on the second side, and less than or equal to three eighths of the length of the second portion, and / or a length of a third portion of the second radiator on the third side is greater than or equal to one half of a length of a fourth portion of the second radiator on the second side, and less than or equal to three eighths of the length of the fourth portion.

[0019] With reference to the second aspect, in some implementations of the second aspect, the first tuning circuit is in a first circuit state, the first radiator is configured to generate a first resonance, a resonance frequency band of the first resonance comprising a first frequency band; and the second tuning circuit is in the first circuit state, the second radiator is configured to generate a second resonance, a resonance frequency band of the second resonance comprising a second frequency band.

[0020] With reference to the second aspect, in some implementations of the second aspect, at a resonance point of the first resonance, currents on the first radiator are in the same direction; and at a resonance point of the second resonance, currents on the second radiator are in the same direction.

[0021] With reference to the second aspect, in some implementations of the second aspect, the electronic device further includes a floor; the bezel further includes a first grounding point and a second grounding point, the bezel is coupled with the floor at the first grounding point and the second grounding point, the first grounding point is located between the first feeding point and the first connecting point, and the second grounding point is located between the second feeding point and the second connecting point.

[0022] With reference to the second aspect, in some implementations of the second aspect, the antenna further includes a third tuning circuit and a fourth tuning circuit; the first radiator includes a third connecting point, and the second radiator includes a fourth connecting point, the first grounding point is located between the first connecting point and the third connecting point, and the second grounding point is located between the second connecting point and the fourth connecting point, the third tuning circuit is coupled with the third connecting point, and the fourth tuning circuit is coupled with the fourth connecting point.

[0023] With reference to the second aspect, in some implementations of the second aspect, the first tuning circuit and the third tuning circuit are in a first circuit state, the first radiator is configured to generate a first resonance and a third resonance, a resonance point frequency of the third resonance is lower than a resonance point frequency of the first resonance; the second tuning circuit and the fourth tuning circuit are in the first circuit state, the second radiator is configured to generate a second resonance and a fourth resonance, a resonance point frequency of the fourth resonance is lower than a resonance point frequency of the second resonance.

[0024] With reference to the second aspect, in some implementations of the second aspect, a frequency difference between a resonance point of the first resonance and a resonance point of the third resonance is greater than or equal to 100 MHz and less than or equal to 300 MHz, and / or, a frequency difference between a resonance point of the second resonance and a resonance point of the fourth resonance is greater than or equal to 100 MHz and less than or equal to 300 MHz.

[0025] With reference to the second aspect, in some implementations of the second aspect, the electronic device further includes a first grounding member, the bezel is coupled with the floor at the first grounding point through the first grounding member; a width of the first grounding member connected with the bezel is greater than or equal to 2 mm and less than or equal to 12 mm.

[0026] With reference to the second aspect, in some implementations of the second aspect, the electronic device further includes a second grounding member, the bezel is coupled with the floor at the second grounding point through the second grounding member; a width of the second grounding member connected with the bezel is greater than or equal to 1 mm and less than or equal to 20 mm. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 This is a schematic diagram of the electronic device 10 provided in the embodiments of this application.

[0028] Figure 2 This is a schematic diagram of the common-mode structure of a linear antenna provided in this application and the corresponding current and electric field distribution.

[0029] Figure 3 This is a schematic diagram of the differential mode structure of another line antenna provided in this application and the corresponding current and electric field distribution.

[0030] Figure 4 This is a schematic diagram of another electronic device 10 provided in the embodiments of this application.

[0031] Figure 5 yes Figure 4 Simulation results of the S-parameters of the antenna 100 in the electronic device 10 shown.

[0032] Figure 6 yes Figure 4 Simulation results of the system efficiency and radiation efficiency of antenna 100 in the electronic device 10 shown.

[0033] Figure 7 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0034] Figure 8 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0035] Figure 9 yes Figure 8 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown.

[0036] Figure 10 yes Figure 8 Simulation results of the system efficiency and radiation efficiency of the antenna 200 in the electronic device 10 shown.

[0037] Figure 11 yes Figure 8 The current distribution diagram of the antenna 200 in the illustrated electronic device 10 at the first resonance (e.g., 2.5 GHz).

[0038] Figure 12 yes Figure 8 The current distribution diagram of the antenna 200 in the illustrated electronic device 10 at the second resonance (e.g., 1.62 GHz).

[0039] Figure 13 yes Figure 8 In the illustrated electronic device 10, the antenna 200 operates at the radiation pattern corresponding to the first resonance (e.g., 2.5 GHz).

[0040] Figure 14 is Figure 8 the antenna 200 in the electronic device 10 shown in FIG. 10 operates in the direction pattern corresponding to the second resonance (e.g., 1.62 GHz).

[0041] Figure 15 is Figure 8 the antenna 200 in the electronic device 10 shown in FIG. 9 operates in the direction pattern corresponding to the first resonance (e.g., 2.5 GHz).

[0042] Figure 16 is Figure 8 the antenna 200 in the electronic device 10 shown in FIG. 10 operates in the direction pattern corresponding to the second resonance (e.g., 1.62 GHz).

[0043] Figure 17 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0044] Figure 18 is Figure 17 the antenna 200 in the electronic device 10 shown in FIG. 9 operates in the direction pattern corresponding to the first resonance (e.g., 1.62 GHz).

[0045] Figure 19 is Figure 17 the antenna 200 in the electronic device 10 shown in FIG. 10 operates in the direction pattern corresponding to the second resonance (e.g., 2.5 GHz).

[0046] Figure 20 is Figure 17 the antenna 200 in the electronic device 10 shown in FIG. 9 operates in the direction pattern corresponding to the first resonance (e.g., 1.62 GHz).

[0047] Figure 21 is Figure 17 the antenna 200 in the electronic device 10 shown in FIG. 10 operates in the direction pattern corresponding to the second resonance (e.g., 2.5 GHz).

[0048] Figure 22 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0049] Figure 23 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0050] Figure 24 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0051] Figure 25 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0052] Figure 26 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0053] Figure 27 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0054] Figure 28 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application. DETAILED DESCRIPTION

[0055] Hereinafter, terms that can appear in embodiments of the present application are explained.

[0056] It should be understood that the term "and / or" used herein is merely a description of the same field of associated objects, indicating that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0057] "Within the scope of" used in the present application includes the two end values of the range by default, for example, within the range of 1 to 5, including the two values of 1 and 5.

[0058] Coupling: can be understood as direct coupling and / or indirect coupling, "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 physical contact and electrical conduction of components; it can also be understood as a form of connection between different components in a circuit structure through a physical circuit such as a printed circuit board (PCB) copper foil or wire that can transmit electrical signals; "indirect coupling" can be understood as electrical conduction between two conductors through space / non-contact. In an embodiment, indirect coupling can also be referred to as capacitive coupling, for example, through the coupling between the gap between two conductive parts to form an equivalent capacitor to achieve signal transmission.

[0059] Element / device: includes at least one of lumped element / device and distributed element / device.

[0060] Lumped element / device: refers to a general term for all elements when the size of the element is much smaller than the relative wavelength of the circuit operating frequency. For a signal, at any time, the element characteristics remain fixed and are independent of frequency.

[0061] Distributed element / device: unlike lumped elements, when the size of the element is similar to or larger than the relative wavelength of the circuit operating frequency, the characteristics of each point of the element itself will be different due to changes in the signal when the signal passes through the element. At this time, the element as a whole cannot be considered as a single body with fixed characteristics, and should be referred to as a distributed element.

[0062] Capacitance: can be understood as lumped capacitance and / or distributed capacitance. Lumped capacitance refers to a component that exhibits capacitance, such as a capacitor element; distributed capacitance (or distributed capacitance) refers to an equivalent capacitance formed by two conductive pieces spaced apart by a certain gap.

[0063] Inductance: can be understood as lumped inductance and / or distributed inductance. Lumped inductance refers to a component that exhibits inductance, such as an inductor element; distributed inductance (or distributed inductance) refers to an equivalent inductance formed by a certain length of conductive piece.

[0064] Radiating body: is a device in an antenna for receiving / transmitting electromagnetic wave radiation. In some cases, "antenna" is understood in a narrow sense as a radiating body, which changes the waveguide energy from the transmitter into radio waves, or converts radio waves into waveguide energy, for radiating and receiving radio waves. The modulated high-frequency current energy (or waveguide energy) generated by the transmitter is transmitted to the transmitting radiating body through the feeder, which is converted into electromagnetic wave energy of a certain polarization by the radiating body and radiated in the desired direction. The receiving radiating body converts the electromagnetic wave energy of a certain polarization from a certain direction in space into modulated high-frequency current energy, which is delivered to the input of the receiver through the feeder.

[0065] The radiator can include a conductor with a specific shape and size, such as a line shape, or a patch shape, etc. The application does not limit the specific shape. In an embodiment, the line shape radiator can be referred to as a line antenna. In an embodiment, the line shape radiator can be implemented by a conductive frame, which can also be referred to as a frame antenna. In an embodiment, the line shape radiator can be implemented by a support conductor, which can also be referred to as a support antenna. In an embodiment, the line diameter (e.g., including thickness and width) of the line shape radiator, or the line antenna, is much smaller (e.g., less than 1 / 16 of the wavelength) than the wavelength (e.g., the medium wavelength), and the length can be comparable to the wavelength (e.g., the length is around 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). The main forms of the line antenna include a dipole antenna, a half-wave vibrator antenna, a monopole antenna, a loop antenna, and an inverted F antenna (also referred to as IFA, Inverted F Antenna). For example, for a dipole antenna, each dipole antenna generally includes two radiating branches, and each branch is fed by a feed from the feed end of the radiating branch. For example, the inverted F antenna (Inverted-F Antenna, IFA) can be regarded as being obtained by adding a ground path to a monopole antenna. The IFA antenna has a feed point and a ground point, and is called an inverted F antenna because its side view is in the shape of an inverted F. In an embodiment, the patch shape radiator can include a microstrip antenna, or a patch antenna, such as a planar inverted F antenna (also referred to as PIFA, Planar Inverted F Antenna). In an embodiment, the patch shape radiator can be implemented by a planar conductor (e.g., a conductive patch or a conductive coating, etc.). In an embodiment, the patch shape radiator can include a conductive patch, such as a copper patch, etc. In an embodiment, the patch shape radiator can include a conductive coating, such as silver paste, etc. The shape of the patch shape radiator includes a circular shape, a rectangular shape, a loop shape, etc. The structure of the microstrip antenna is generally composed of a dielectric substrate, a radiator, and a ground plate, wherein the dielectric substrate is arranged between the radiator and the ground plate.

[0066] The radiators can also include slots or gaps formed on the conductors, such as closed or semi-closed slots or gaps on the grounded conductor plane. In one embodiment, the slotted or gapped radiators can be referred to as slot antennas or gap antennas. In one embodiment, the slot or gap of the slot antenna / gap antenna has a radial dimension (e.g., including width) much smaller than the wavelength (e.g., dielectric wavelength) (e.g., less than 1 / 16 of the wavelength), and a length dimension comparable to the wavelength (e.g., dielectric wavelength) (e.g., around 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). In one embodiment, the radiators with closed slots or gaps can be referred to as closed slot antennas. In one embodiment, the radiators with semi-closed slots or gaps (e.g., with openings added to the closed slots or gaps) can be referred to as open slot antennas. In some embodiments, the gap shape is long and thin. In some embodiments, the gap length is about half a wavelength (e.g., dielectric wavelength). In some embodiments, the gap length is about an integer number of wavelengths (e.g., one dielectric wavelength). In some embodiments, the gap can be fed by a transmission line that is connected across one or both sides of the gap, whereby the gap is excited with a radio frequency electromagnetic field and radiates electromagnetic waves into space. In one embodiment, the radiators of the slot antennas or gap antennas can be implemented by conductive frames that are grounded at both ends, which can also be referred to as frame antennas; in this embodiment, the slot antennas or gap antennas can be considered to include linear radiators that are spaced apart from the ground plane and grounded at both ends, thereby forming closed or semi-closed slots or gaps. In one embodiment, the radiators of the slot antennas or gap antennas can be implemented by bracket conductors that are grounded at both ends, which can also be referred to as bracket antennas.

[0067] The feed circuit is a combination of all circuits for reception and transmission of radio frequency signals. The feed circuit can include a transceiver and a radio frequency front end. In some cases, the term "feed circuit" is used in a narrow sense to refer to a radio frequency integrated circuit (RFIC), which can be considered to include a radio frequency 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). In general, it is considered to be part of the radio frequency.

[0068] In some embodiments, the electronic device can also include a test seat (or referred to as a radio frequency seat or a radio frequency test seat). The test seat can be used to insert a coaxial cable to test the characteristics of the radio frequency front end circuit or the radiators of the antenna through the cable. The radio frequency front end circuit can be considered to be a circuit portion coupled between the test seat and the transceiver.

[0069] In some embodiments, the radio frequency front-end circuit can be integrated as a radio frequency front-end chip in the electronic device, or the radio frequency front-end circuit and the transceiver can be integrated as a radio frequency chip in the electronic device.

[0070] 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 one radio frequency channel (e.g., one pin of a radio frequency chip) in one transceiver; and can also share one radio frequency front-end circuit, for example, processing signals through a switch or an amplifier in one radio frequency front-end circuit.

[0071] It should also be understood that two of the first / second / … / Nth feeding circuits in the present application generally correspond to two radio frequency test seats in the electronic device.

[0072] The matching circuit is a circuit for adjusting the radiation characteristics of the antenna. In one embodiment, the matching circuit is coupled between the feeding circuit and the corresponding radiator. In one embodiment, the matching circuit is coupled between the test seat and the radiator. Generally, the matching circuit is a combination of circuits coupled between the radiator and the ground plane. In one embodiment, the matching circuit can include switches and / or electronic components, and the switches can be electronic components for switching the coupling connection of the radiator. The matching circuit has the functions of impedance matching and / or frequency tuning. Generally, it is considered as a part of the antenna.

[0073] The ground structure / feeding structure can include connectors, such as metal springs, and the radiator is coupled to the ground plane through the ground structure / and the feeding structure is coupled to the feeding circuit. In some embodiments, the feeding structure can include a transmission line / feeding line, and the ground structure can include a ground line.

[0074] End / point: the “end / point” in the first end / second end / feeding end / grounding end / feeding point / grounding point / connection point of the antenna radiator should not be understood as a point or end physically disconnected from other radiators, but can also be considered as a certain point or section on a continuous radiator. In one embodiment, the “end / point” can include a connection / coupling area on the antenna radiator for coupling other conductive structures, for example, the feeding end / feeding point can be a coupling area (e.g., an area facing a part of the feeding structure) on the antenna radiator for coupling the feeding structure, and for another example, the grounding end / grounding point can be a connection / coupling area on the antenna radiator for coupling the grounding structure.

[0075] Open end, closed end: In some embodiments, open end and closed end are for example relative to ground, closed end is grounded, open end is not grounded. In some embodiments, open end and closed end are for example relative to other conductors, closed end is electrically connected to other conductors, open end is not electrically connected to other conductors. In one embodiment, open end can also be referred to as floating end, free end, open end, or open circuit end. In one embodiment, closed end can also be referred to as grounded end, or short circuit end. It should be appreciated that in some embodiments, other conductors can be coupled through open end to transfer coupling energy (it can be appreciated that current is transferred).

[0076] In some embodiments, the understanding of "closed end" can also be from the perspective of current distribution, closed end or grounded end, etc. can be understood as a current large point on the radiator, or as a small point of electric field on the radiator; in one embodiment, coupling electronic devices (e.g. capacitors, inductors, etc.) through the closed end can not change the current distribution characteristics of the current large point / small point of electric field; in one embodiment, opening a slot (e.g. a gap filled with insulating material) at or near the closed end can not change the current distribution characteristics of the current large point / small point of electric field.

[0077] In some embodiments, the understanding of "open end" can also be from the perspective of current distribution, open end or floating end, etc. can be understood as a current small point on the radiator, or as a large point of electric field on the radiator; in one embodiment, coupling electronic devices (e.g. capacitors, inductors, etc.) through the open end can not change the current distribution characteristics of the current small point / large point of electric field.

[0078] It should be appreciated that the radiator end at a gap (from the structure of the radiator, similar to the radiator at the opening of the open end or floating end) coupled to electronic devices (e.g. capacitors, inductors, etc.) can make the radiator end a current large point / small point of electric field, in which case it should be understood that the radiator end at the gap is actually a closed end or a grounded end, etc.

[0079] The "floating radiator" mentioned in the embodiments of the present application refers to a radiator that is not directly connected to a feed line / branch and / or a ground line / branch, but is fed and / or grounded by indirect coupling.

[0080] It should be appreciated that "floating" in "floating end" and "floating radiator" does not mean that there is no structure around the radiator to support it. In one embodiment, the floating radiator can be for example a radiator arranged on the inner surface of an insulating back cover.

[0081] The co-directional / counter-directional currents mentioned in the embodiments of the present application should be understood as the co-directional / counter-directional directions of the main currents on the conductors on the same side. For example, when co-directional distributed currents are excited on the conductors in a meandering shape or in a loop shape (for example, the current paths are also meandering or loop-shaped), it can be understood that, for example, the main currents excited on the conductors on two sides of a loop-shaped conductor (for example, the conductors around a gap, the conductors on two sides of the gap) are in the counter-directional directions, which still belong to the definition of the co-directional distributed currents in the present application. In an embodiment, the co-directional currents on one conductor can mean that there is no reversal point of the currents on the conductor. In an embodiment, the counter-directional currents on one conductor can mean that there is at least one reversal point of the currents on the conductor. In an embodiment, the co-directional currents on two conductors can mean that there is no reversal point of the currents on the two conductors, and the currents flow in the same direction. In an embodiment, the counter-directional currents on two conductors can mean that there is no reversal point of the currents on the two conductors, and the currents flow in opposite directions. The co-directional / counter-directional currents on multiple conductors can be understood accordingly.

[0082] The co-directional / counter-directional electric fields mentioned in the embodiments of the present application should be understood as the co-directional / counter-directional directions of the main electric fields generated by the conductors in space (for example, the electric fields between the conductors and the ground). For example, when co-directional distributed electric fields are excited on the conductors in a meandering shape or in a loop shape (for example, the gaps between the ground and the conductors are also meandering or loop-shaped), it can be understood that, for example, the directions of the electric fields in the gaps are all from the ground to the conductors, or from the conductors to the ground, and the main electric fields excited in the gaps on two sides of a loop-shaped conductor (for example, the conductors around a gap, the gaps on two sides of the gap) are in the counter-directional directions, which still belong to the definition of the co-directional distributed electric fields in the embodiments of the present application. In an embodiment, the co-directional electric fields between one conductor and the ground can mean that there is no reversal point of the electric fields between the conductor and the ground. In an embodiment, the counter-directional electric fields between one conductor and the ground can mean that there is at least one reversal point of the electric fields between the conductor and the ground. In an embodiment, the co-directional electric fields between two conductors and the ground can mean that there is no reversal point of the electric fields between the two conductors and the ground, and the electric fields radiate in the same direction (for example, the positive direction of the z-axis). In an embodiment, the counter-directional electric fields between two conductors and the ground can mean that there is no reversal point of the electric fields between the two conductors and the ground, and the electric fields flow in opposite directions. The co-directional / counter-directional electric fields between multiple conductors and the ground can be understood accordingly.

[0083] Resonance / resonance frequency: Resonance frequency is also called resonant frequency. Resonance frequency can have a frequency range, i.e. a frequency range in which resonance occurs. The frequency corresponding to the strongest point of resonance is the center frequency point frequency. The return loss characteristic of the center frequency can be less than -20 dB. It should be understood that, unless otherwise specified, the antenna / radiator mentioned in this application produces "first / second… resonance", wherein the first resonance is the fundamental mode resonance produced by the antenna / radiator, or in other words, the resonance with the lowest frequency produced by the antenna / radiator. It should be understood that the antenna / radiator can produce one or more antenna modes according to the specific design, and each antenna mode can correspond to the production of a fundamental mode resonance.

[0084] Resonance frequency band: The range of resonance frequencies is the resonance frequency band, and the return loss characteristic of any frequency point in the resonance frequency band can be less than -6 dB or -5 dB.

[0085] Communication frequency band / working frequency band: Regardless of the type of antenna, it always works within a certain frequency range (bandwidth). For example, an antenna supporting B40 frequency band has a working frequency band including frequencies within the range of 2300 MHz~2400 MHz, or in other words, the working frequency band of the antenna includes the B40 frequency band. The frequency range that meets the index requirements can be regarded as the working frequency band of the antenna.

[0086] The resonance frequency band and the working frequency band can be the same or can partially overlap. In one embodiment, one or more resonance frequency bands of an antenna can cover one or more working frequency bands of the antenna.

[0087] 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, and the electrical length can satisfy the following formula:

[0088] ;

[0089] wherein L is the physical length, and the wavelength of the electromagnetic wave.

[0090] Wavelength: or working wavelength, which can be the wavelength corresponding to the center frequency of the resonance frequency or 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 (resonance frequency of 1920 MHz to 1980 MHz) is 1955 MHz, the working wavelength can be the wavelength calculated using the frequency of 1955 MHz. Not limited to the center frequency, the "working wavelength" can also refer to the wavelength corresponding to a non-center frequency of the resonance frequency or the working frequency band.

[0091] It should be understood that the wavelength of the radiation signal in air can be calculated as follows: (air wavelength, or vacuum wavelength) = light speed / frequency, where the frequency is the frequency of the radiation signal (MHz), and the light speed can be taken as 3 x 108m / s. The wavelength of the radiation signal in a medium can be calculated as follows: medium wavelength = (light speed / frequency) / Ԑ, where Ԑ is the relative permittivity of the medium. The wavelength in the embodiments of the present application generally refers to the medium wavelength, which can be the medium wavelength corresponding to the center frequency of the resonance frequency, or the medium wavelength corresponding to the center frequency of the operating frequency band supported by the antenna. For example, assuming that the center frequency of the B1 uplink frequency band (resonance frequency of 1920 MHz to 1980 MHz) is 1955 MHz, the wavelength can be the medium wavelength calculated using the frequency of 1955 MHz. Without being limited to the center frequency, the "medium wavelength" can also refer to the medium wavelength corresponding to a non-center frequency of the resonance frequency or the operating frequency band. For ease of understanding, the medium wavelength mentioned in the embodiments of the present application can be simply calculated by the relative permittivity of the medium filled on one side or multiple sides of the radiator.

[0092] Total efficiency of the antenna system: refers to the ratio of the input power at the port of the antenna to the output power.

[0093] Radiation efficiency of the antenna: refers to the ratio of the power radiated by the antenna to space (i.e., the power of the part effectively converted into electromagnetic waves) to the active power input to the antenna. The active power input to the antenna = input power of the antenna - loss power; the loss power mainly includes the return loss power and the ohmic loss power of the metal and / or the dielectric loss power. The radiation efficiency is a value for measuring the radiation capability of the antenna, and the metal loss and the dielectric loss are both factors affecting the radiation efficiency.

[0094] As can be understood by those skilled in the art, the efficiency is generally expressed in percentage, and there is a corresponding conversion relationship between the efficiency and dB, that is, the closer the efficiency is to 0 dB, the better the efficiency of the antenna is represented.

[0095] Antenna pattern: also known as radiation pattern. Refers to the relative field strength (normalized modulus) of the antenna radiation field at a certain distance from the antenna, which changes with the direction, and is usually represented by two mutually perpendicular plane patterns through the maximum radiation direction of the antenna.

[0096] The antenna pattern usually has multiple radiation beams. The radiation beam with the maximum radiation intensity is called the main lobe, and the remaining radiation beams are called side lobes or side lobes. In the side lobe, the side lobe in the opposite direction of the main lobe is also called the back lobe.

[0097] ​Directivity: also known as the directivity of the antenna. It refers to the ratio of the maximum power density to the average value on the antenna pattern at a certain distance from the antenna (far field), which is a dimensionless ratio greater than or equal to 1. It can be used to indicate the energy radiation characteristics of the antenna. The greater the directivity, the more energy the antenna radiates in a certain direction, and the more concentrated the energy radiation is.

[0098] Antenna gain: used to characterize the degree of concentration of input power radiated by the antenna. Generally, the narrower the main lobe of the antenna pattern, the smaller the side lobe, and the higher the antenna gain.

[0099] Polarization direction of the line: at a given point in space, the electric field intensity E (vector) is a function of time t, and as time goes on, the vector end point periodically traces a trajectory in space. The trajectory is a straight line perpendicular to the ground, which is called vertical polarization, or horizontal to the ground, which is called horizontal polarization. The trajectory is an ellipse or a circle, and when viewed along the propagation direction, it rotates in the right-hand or clockwise direction as time goes on, which is called right-hand circular polarization (RHCP), or rotates in the left-hand or counterclockwise direction as time goes on, which is called left-hand circular polarization (LHCP).

[0100] Axial ratio (AR) of the antenna: under circular polarization, the electric field vector end point periodically traces an elliptical trajectory in space, and the ratio of the major axis to the minor axis of the ellipse is called the axial ratio. The axial ratio is an important performance indicator of circularly polarized antennas, which represents the purity of circular polarization and is an important indicator of the difference in signal gain in different directions of the whole machine. The closer the circular polarization axial ratio value of the antenna is to 1 (the electric field vector end point periodically traces a circular trajectory in space), the better the circular polarization performance.

[0101] Antenna return loss: can be understood as the ratio of the signal power reflected back to the antenna port to the antenna port transmission power through the antenna circuit. The smaller the reflected signal, the greater the signal radiated into space through the antenna, and the greater the antenna radiation efficiency. The greater the reflected signal, the smaller the signal radiated into space through the antenna, and the smaller the antenna radiation efficiency.

[0102] Antenna return loss can be represented by S11 parameter, which belongs to S parameter. S11 represents the reflection coefficient, which can characterize the advantages and disadvantages of antenna transmission efficiency. S11 parameter is usually negative, and the smaller the S11 parameter, the smaller the antenna return loss, the smaller the energy reflected back by the antenna itself, which means that the actual energy entering the antenna is more, and the system efficiency of the antenna is higher; the larger the S11 parameter, the larger the antenna return loss, and the lower the system efficiency of the antenna.

[0103] It should be noted that the S11 value of -6dB is generally used as a standard in engineering. When the S11 value of an antenna is less than -6dB, it can be considered that the antenna can work normally, or it can be considered that the transmitting efficiency of the antenna is better.

[0104] Ground (GND): can refer to at least a part of any ground layer, or ground plate, or ground metal layer in an electronic device (such as a mobile phone), or at least a part of any combination of the above ground layer, or ground plate, or ground component, and "ground" can be used for the grounding of components in the electronic device. In one embodiment, the "ground" can be a ground layer of a circuit board of the electronic device, or a ground plate formed by a middle frame of the electronic device, or a ground metal layer formed by a 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 12-14 layer board with 8, 10, 12, 13, or 14 layers of conductive material, or elements separated and electrically insulated by a dielectric layer or insulating layer such as glass fiber, polymer, etc. In one embodiment, the circuit board includes a dielectric substrate, a ground layer, and a wiring layer, and the wiring layer and the ground layer are electrically connected by a via. In one embodiment, components such as a display, a touch screen, an input button, a transmitter, a processor, a memory, a battery, a charging circuit, a system on chip (SoC) structure, etc. can be mounted on or connected to the circuit board; or electrically connected to the wiring layer and / or the ground layer in the circuit board. For example, a radio frequency source is provided on the wiring layer.

[0105] Any ground layer, or ground plate, or ground metal layer described above is made of conductive material. In one embodiment, the conductive material can use any of the following materials: copper, aluminum, stainless steel, brass and their alloys, copper foil on an insulating substrate, aluminum foil on an insulating substrate, gold foil on an insulating substrate, silver-plated copper, silver-plated copper foil on an insulating substrate, silver foil on an insulating substrate, and tin-plated copper, graphite powder impregnated cloth, graphite coated substrate, copper plated substrate, brass plated substrate, and aluminum plated substrate. Those skilled in the art can understand that the ground layer / ground plate / ground metal layer can also be made of other conductive materials.

[0106] Ground: refers to coupling with the above ground / ground plate through a grounding structure and / or a grounding circuit. In one embodiment, the ground can be a physical ground, such as a physical ground at a specific position on the bezel through a part of the structure of the middle frame (or referred to as a physical ground). In one embodiment, the ground can be a device ground, such as a device ground (or referred to as a device ground) through series or parallel capacitors / inductors / resistors, etc.

[0107] The technical solutions of the embodiments of the present application will be described below with reference to the drawings.

[0108] As shown in Figure 1 , the electronic device 10 can include a cover 13, a display 15, a printed circuit board (PCB) 17, a middle frame 19, and a rear cover 21. It should be understood that in some embodiments, the cover 13 can be a cover glass, and can also be replaced by a cover of other materials, such as a PET (Polyethylene terephthalate) material cover, etc.

[0109] Among them, the cover 13 can be arranged close to the display module 15, and can be mainly used for protecting and dustproofing the display module 15.

[0110] In an embodiment, the display module 15 can include a liquid crystal display (LCD), a light emitting diode (LED) display panel, or an organic light-emitting diode (OLED) display panel, etc., and the embodiments of the present application do not limit this.

[0111] The middle frame 19 mainly plays a supporting role for the whole machine. Figure 1PCB 17 can be made of a flame resistant material (FR-4) dielectric board, a Rogers dielectric board, a hybrid dielectric board of Rogers and FR-4, etc. Here, FR-4 is a code of a flame resistant material grade, and the Rogers dielectric board is a high-frequency board. The PCB 17 carries electronic components, such as radio frequency chips, etc. In an embodiment, the PCB 17 can be provided with a metal layer. The metal layer can be used for grounding of the electronic components carried on the PCB 17, and can also be used for grounding of other components, such as a bracket antenna, a frame antenna, etc. The metal layer can be referred to as a ground plate, or a grounding plate, or a grounding layer. In an embodiment, the metal layer can be formed by etching metal on a surface of any one of the dielectric boards in the PCB 17. In an embodiment, the metal layer for grounding can be provided on a side of the PCB 17 close to the middle frame 19. In an embodiment, the edge of the PCB 17 can be regarded as the edge of the grounding layer thereof. In an embodiment, the metal middle frame 19 can also be used for grounding of the components described above. The electronic device 10 can also have other ground plates / grounding plates / grounding layers, which are not described herein again.

[0112] The electronic device 10 can also include a battery (not shown in the figure). The battery can be disposed between the middle frame 19 and the back cover 21, or can be disposed between the middle frame 19 and the display module 15, without limitation to the embodiments of the present application. In some embodiments, the PCB 17 is divided into a main board and a sub-board, and the battery can be disposed between the main board and the sub-board. The main board can be disposed between the middle frame 19 and the upper edge of the battery, and the sub-board can be disposed between the middle frame 19 and the lower edge of the battery.

[0113] The electronic device 10 can also include a frame 11, which can be formed of a conductive material such as metal. The frame 11 can be disposed between the display module 15 and the back cover 21 and extend circumferentially around the periphery of the electronic device 10. The frame 11 can have four side edges surrounding the display module 15 and help secure the display module 15.

[0114] In an implementation, the frame 11 made of a conductive material can be directly used as a conductive frame of the electronic device 10, such as forming an appearance of a metal frame, suitable for metal industrial design (ID). In an implementation, the outer surface of the frame 11 can be a conductive material, such as a metal material, thereby forming an appearance of a metal frame. In these implementations, the conductive part of the frame 11 can be used as an antenna radiator of the electronic device 10.

[0115] In another implementation, the outer surface of the bezel 11 can also be a non-conductive material, such as plastic, to form a non-metallic appearance of the bezel 11, suitable for non-metallic IDs. In one implementation, the inner surface of the bezel 11 can include a conductive material, such as a metallic material. In this implementation, the conductive portion of the bezel 11 can be used as an antenna radiator of the electronic device 10. It should be appreciated that the radiator (or the conductive material of the inner surface) disposed on the inner surface of the bezel 11 is disposed against the non-conductive material of the bezel 11 to facilitate antenna radiation, and both the conductive material and the non-conductive material should be considered as part of the bezel 11.

[0116] The middle frame 19 can include the bezel 11, and the middle frame 19 including the bezel 11 as a unitary piece can support the electronic components in the entire device. The cover plate 13 and the back cover 21 are respectively coupled along the upper and lower edges of the bezel to form a housing of the electronic device. In one embodiment, the cover plate 13, the back cover 21, the bezel 11, and / or the middle frame 19 can be collectively referred to as a housing of the electronic device 10. It should be appreciated that the "housing" can be used to refer to part or all of any one of the cover plate 13, the back cover 21, the bezel 11, or the middle frame 19, or part or all of any combination of the cover plate 13, the back cover 21, the bezel 11, or the middle frame 19.

[0117] The bezel 11 on the middle frame 19 can at least partially serve as an antenna radiator to receive / transmit radio frequency signals. There can be a gap between the portion of the bezel 11 serving as the antenna radiator and other portions of the middle frame 19 to ensure that the antenna radiator has a good radiation environment. In one embodiment, the middle frame 19 can be provided with an aperture at the portion of the bezel 11 serving as the antenna radiator to facilitate radiation of the antenna.

[0118] Alternatively, the bezel 11 can not be considered as part of the middle frame 19. In one embodiment, the bezel 11 can be connected to and formed integrally with the middle frame 19. In another embodiment, the bezel 11 can include a protrusion extending inwardly to be connected to the middle frame 19, such as by a spring, a screw, welding, or the like. The protrusion of the bezel 11 can also be used to receive a feed signal, so that at least a portion of the bezel 11 serves as an antenna radiator to receive / transmit radio frequency signals. There can be a gap 42 between the portion of the bezel 11 serving as the antenna radiator and the middle frame 30 to ensure that the antenna radiator has a good radiation environment, so that the antenna has a good signal transmission function.

[0119] The back cover 21 can be made of metal; it can also be made of non-conductive material, such as a glass back cover, a plastic back cover, or other non-metallic back cover; or it can be made of both conductive and non-conductive materials. In one embodiment, the back cover 21, which includes conductive material, can replace the middle frame 19 and form an integral part with the frame 11, providing support for the electronic components in the whole device.

[0120] In one embodiment, conductive portions in the mid-frame 19 and / or rear 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 mid-frame.

[0121] The antenna of the electronic device 10 can also be disposed within the frame 11. When the frame 11 of the electronic device 10 is made of a non-conductive material, the antenna radiator can be located within the electronic device 10 and positioned along the frame 11. For example, the antenna radiator can be positioned close to the frame 11 to minimize the volume occupied by the antenna radiator and to be closer to the outside of the electronic device 10, thereby achieving better signal transmission performance. It should be noted that "positioning the antenna radiator close to the frame 11" means that the antenna radiator can be positioned flush against the frame 11 or close to the frame 11, for example, there can be a small gap between the antenna radiator and the frame 11.

[0122] The antenna of electronic device 10 can also be housed inside the casing, such as a bracket antenna, millimeter-wave antenna, etc. Figure 1 (Not shown in the image). The clearance of the antenna disposed within the housing can be obtained by a slot / aperture on any of the middle frame, and / or bezel, and / or back cover, and / or display screen, or by a non-conductive gap / aperture formed between any of them. The clearance setting of the antenna can ensure the radiation characteristics of the antenna. It should be understood that the clearance of the antenna can be a non-conductive area formed by any conductive components within the electronic device 10, through which the antenna radiates signals to the external space. In one embodiment, the antenna 40 can 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), etc. In one embodiment, the antenna can also be a transparent structure embedded inside the screen of the electronic device 10, making the antenna a transparent antenna embedded inside the screen of the electronic device 10.

[0123] Figure 1 The electronic device 10 is shown only schematically, and the actual shape, size, and construction of these components are not subject to change. Figure 1 limited.

[0124] It should be understood that in the embodiments of the present application, the face where the display screen of the electronic device is located can be considered as the front face, the face where the back cover is located can be considered as the back face, and the face where the frame is located can be considered as the side face.

[0125] It should be understood that in the embodiments of the present application, when a user holds (usually vertically and faces the screen) the electronic device, the orientation of the electronic device has 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 (usually vertically and faces the screen) the electronic device, the orientation of the electronic device has a top, a bottom, a left side and a right side.

[0126] The embodiments of the present application provide an electronic device, which includes an antenna, the antenna has a conductive part of a frame of the electronic device as a main radiator and a parasitic branch, and the experience of a user in satellite navigation or communication can be improved.

[0127] Firstly, by Figure 2 and Figure 3 two antenna modes involved in the present application will be introduced. Among them, Figure 2 is a structure of a common mode of an antenna provided by the present application and a distribution diagram of corresponding current and electric field. Figure 3 is a structure of a differential mode of another antenna provided by the present application and a distribution diagram of corresponding current and electric field. Figure 2 and Figure 3 The two ends of the antenna radiator in and are open, and the common mode and the differential mode can be respectively called the line common mode and the line differential mode.

[0128] It should be understood that the "common-differential mode" or "CM-DM mode" in the present application refers to the line common mode and the line differential mode generated on the same radiator.

[0129] Figure 2 (a) in shows that the two ends of the radiator of the antenna 40 are open, and the feeding circuit (not shown in the figure) is connected at the middle position 41. In an embodiment, the feeding form of the antenna 40 adopts symmetrical feeding. The feeding circuit can be connected to the middle position 41 of the antenna 40 through the feeding line 42. It should be understood that the symmetrical feeding can be understood as that one end of the feeding circuit is connected to the radiator, and the other end is coupled to the ground plane to realize grounding, wherein the connection point (feeding point) of the feeding circuit and the radiator is located at the center of the radiator, for example, it can be the midpoint of the geometric structure, or the midpoint (or a region within a certain range near the above-mentioned midpoint) of the electrical length.

[0130] The middle position 41 of the antenna 40, for example, can be the geometric center of the antenna, or the midpoint of the electrical length of the radiator, for example, the connection position of the feeding line 42 and the antenna 40 covers the middle position 41.

[0131] Figure 2 (b) of FIG. 1 shows the current, electric field distribution of the antenna 40. As shown in (b) of FIG. 1, the current presents a reverse distribution, for example, a symmetrical distribution, on both sides of the middle position 41; the electric field presents a same direction distribution on both sides of the middle position 41. Figure 2 (b) of FIG. 1 shows the current, electric field distribution of the antenna 40. As shown in (b) of FIG. 1, the current presents a reverse distribution, for example, a symmetrical distribution, on both sides of the middle position 41; the electric field presents a same direction distribution on both sides of the middle position 41. Figure 2 (b) of FIG. 1 shows the current, electric field distribution of the antenna 40. As shown in (b) of FIG. 1, the current presents a reverse distribution, for example, a symmetrical distribution, on both sides of the middle position 41; the electric field presents a same direction distribution on both sides of the middle position 41. Figure 2 (b) of FIG. 1 shows the current, electric field distribution of the antenna 40. As shown in (b) of FIG. 1, the current presents a reverse distribution, for example, a symmetrical distribution, on both sides of the middle position 41; the electric field presents a same direction distribution on both sides of the middle position 41. Figure 2 (b) of FIG. 1 shows the current, electric field distribution of the antenna 40. As shown in (b) of FIG. 1, the current presents a reverse distribution, for example, a symmetrical distribution, on both sides of the middle position 41; the electric field presents a same direction distribution on both sides of the middle position 41. Figure 2 (b) of FIG. 1 shows the current, electric field distribution of the antenna 40. As shown in (b) of FIG. 1, the current presents a reverse distribution, for example, a symmetrical distribution, on both sides of the middle position 41; the electric field presents a same direction distribution on both sides of the middle position 41.

[0132] (b) of FIG. 1 shows the current, electric field distribution of the antenna 40. As shown in (b) of FIG. 1, the current presents a reverse distribution, for example, a symmetrical distribution, on both sides of the middle position 41; the electric field presents a same direction distribution on both sides of the middle position 41. Figure 2 (b) of FIG. 1 shows the current, electric field distribution of the antenna 40. As shown in (b) of FIG. 1, the current presents a reverse distribution, for example, a symmetrical distribution, on both sides of the middle position 41; the electric field presents a same direction distribution on both sides of the middle position 41.

[0133] 2, line differential mode (DM) mode

[0134] (b) of FIG. 1 shows the current, electric field distribution of the antenna 40. As shown in (b) of FIG. 1, the current presents a reverse distribution, for example, a symmetrical distribution, on both sides of the middle position 41; the electric field presents a same direction distribution on both sides of the middle position 41. Figure 3 (b) of FIG. 1 shows the current, electric field distribution of the antenna 40. As shown in (b) of FIG. 1, the current presents a reverse distribution, for example, a symmetrical distribution, on both sides of the middle position 41; the electric field presents a same direction distribution on both sides of the middle position 41.

[0135] It should be understood that the "center anti-symmetrical feed" mentioned in the present application can be understood as that the positive and negative poles of the feeding unit are connected to the two connection points near the above-mentioned midpoint of the radiating body. In an embodiment, the signal amplitudes output by the positive and negative poles of the feeding unit are the same, and the phases are opposite, for example, the phases are opposite by 180°±10°.

[0136] Figure 3 (b) of FIG. 1 shows the current, electric field distribution of the antenna 40. As shown in (b) of FIG. 1, the current presents a reverse distribution, for example, a symmetrical distribution, on both sides of the middle position 41; the electric field presents a same direction distribution on both sides of the middle position 41. Figure 3As shown in (b) of FIG. 1, the current presents a same-direction distribution, for example, an anti-symmetrical distribution, on both sides of the middle position 51 of the antenna 50; the electric field presents a reverse distribution on both sides of the middle position 51. Figure 3 As shown in (b) of FIG. 1, the current at the feeding wire 52 presents a reverse distribution. Based on the reverse distribution of the current at the feeding wire 52, Figure 3 Such a feeding as shown in (a) of FIG. 1 can be referred to as a line DM feeding. Based on the same-direction distribution of the current on both sides of the connection between the radiator and the feeding wire 52, Figure 3 Such an antenna mode as shown in (b) of FIG. 1 can be referred to as a line DM mode (which can also be simply referred to as a DM mode, for example, for a line antenna, the DM mode refers to the line DM mode). Figure 3 The current and the electric field as shown in (b) of FIG. 1 can be respectively referred to as the current and the electric field of the line DM mode.

[0137] The current is stronger at the middle position 51 of the antenna 50 (the current is larger near the middle position 51 of the antenna 50), and weaker at both ends of the antenna 50, as shown in (b) of FIG. 1. Figure 3 The electric field is weaker at the middle position 51 of the antenna 50, and stronger at both ends of the line antenna 50.

[0138] It should be understood that, for the antenna radiator, which can be understood as a metal structural member that generates radiation, the number thereof can be one, as shown in (a) of FIG. 1, Figure 2 or, the number thereof can also be two, as shown in (b) of FIG. 1, which can be adjusted according to actual design or production needs. For example, for the line CM mode, two radiators can also be adopted, as shown in (b) of FIG. 1, the two ends of the two radiators are oppositely arranged and spaced apart by a gap, and a symmetrical feeding manner is adopted at the two ends close to each other, for example, the same signal is fed into the two ends close to each other of the two radiators, respectively, which can also obtain similar effects to the antenna structure as shown in (a) of FIG. 1. Figure 3 Correspondingly, for the line DM mode, one radiator can also be adopted, as shown in (b) of FIG. 1, two feeding points are arranged at the middle position of the radiator and an anti-symmetrical feeding manner is adopted, for example, signals with the same amplitude and opposite phases are fed into the two symmetrical feeding points on the radiator, respectively, which can also obtain similar effects to the antenna structure as shown in (b) of FIG. 1. Figure 3 Figure 2 Figure 2 Figure 3

[0139] 3, Line CM-DM Mode

[0140] The above Figure 2 and Figure 3 respectively show that the line CM mode and the line DM mode are respectively generated by adopting different feeding manners when the two ends of the radiator are open.

[0141] ​​​​When the antenna is fed asymmetrically (the feed point is off-center from the radiator, including side-feed or offset feed), or when the grounding point of the radiator (coupled to the ground) is asymmetrical (off-center from the radiator), the antenna can simultaneously generate a first resonance and a second resonance, corresponding to the line CM mode and the line DM mode, respectively. For example, the first resonance corresponds to the line CM mode, with current and electric field distributions as follows: Figure 2 As shown in (b) above. The second resonance corresponds to the line DM mode, and the current and electric field distribution is as follows. Figure 3 As shown in (b) of the diagram.

[0142] Figure 4 This is a schematic diagram of another electronic device 10 provided in the embodiments of this application.

[0143] like Figure 4 As shown, the conductive frame 11 of the electronic device 10 may include a first side 131 and a second side 132 that intersect at an angle, and the length of the first side 131 is greater than the length of the second side 132.

[0144] The second side 132 may have a first position 101 and a second position 102, and the frame 11 has a gap between 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.

[0145] In one embodiment, the radiator 105 is symmetrical along a virtual axis of the second side 132, and the lengths of the second side 132 on both sides of the virtual axis are the same. Due to certain errors in engineering applications, when the ratio between the distances of 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%, the radiator 105 can be considered symmetrical along the virtual axis of the second side 132.

[0146] It should be understood that for an antenna, as the antenna structure becomes more symmetrical (e.g., the radiator 105 is located at the center of the second side 132), the antenna's radiation characteristics are improved (e.g., bandwidth, radiation efficiency, etc.).

[0147] Figure 5 and Figure 6 yes Figure 4 The simulation results of antenna 100 in the electronic device 10 are shown. Among them, Figure 5 yes Figure 4 Simulation results of the S-parameters of the antenna 100 in the electronic device 10 shown. Figure 6 yes Figure 4 Simulation results of the system efficiency and radiation efficiency of antenna 100 in the electronic device 10 shown.

[0148] like Figure 5 As shown, when Figure 4The antennas shown respectively adopt Figure 2 and Figure 3 feeding modes shown, respectively, can generate linear CM mode and linear DM mode. The antennas in linear CM mode and linear DM mode can both resonate near 2GHz.

[0149] It should be understood that, for the sake of brevity of discussion, in this embodiment, only the linear CM mode and the linear DM mode are taken as examples for illustration. According to the above-mentioned embodiments, the linear CM mode and the linear DM mode can also be excited simultaneously by means of asymmetric feeding (the feeding point deviates from the middle position of the radiator, including edge feeding or offset feeding), or the ground point (the coupling point with the ground) of the radiator is asymmetric (the ground point deviates from the middle position of the radiator).

[0150] 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, the radiation efficiency of the DM mode is-1.27dB, and the system efficiency is-1.39dB.

[0151] It should be understood that when the first frame is located at the center of the second side, the transverse mode (the proportion is more than the longitudinal mode) can be excited, but the current corresponding to the transverse mode will cancel each other out, so the system efficiency and the radiation efficiency of the CM mode are relatively low.

[0152] As for the DM mode, the radiation of the antenna in the DM mode is mainly generated by the radiator (the first frame), and the system efficiency and the radiation efficiency are better than those of the CM mode when the first frame is set at the center of the second side.

[0153] Figure 7 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0154] As shown in Figure 7 , the electronic device 10 includes a frame 11, an antenna 200, and a ground plate 300.

[0155] The frame 11 can include a first side 131 and a second side 132 that are angularly intersected, and the length of the first side 131 is greater than the length of the second side 132.

[0156] The frame 11 can include a first position 201, a second position 202, and a third position 203 arranged in sequence. The third position 203 is located at the first side 131. The first position 201 and the second position 202 are located at the second side 132. The frame 11 is provided with a first slit, a second slit, and a third slit at the first position 201, the second position 202, and the third position 203, respectively.

[0157] In one embodiment, the width of the slit opened by the first position 201, the second position 202 and the third position 203 is greater than or equal to 0.2 mm and less than or equal to 1.5 mm. In the embodiments of the present application, the width of the slit can be within the above range. It should be understood that the width of the slit can be understood as the distance between the ends of the frame on both sides of the slit.

[0158] The antenna 200 comprises a first radiator 211, a second radiator 212, a first feeding circuit 221, a second feeding circuit 222, a first tuning circuit 251 and a second tuning circuit 252.

[0159] The first radiator 211 is a conductive part of the frame of the first position 201 and the second position 202. The first end (the end close to the second position 202) and the second end (the end close to the first position 201) of the first radiator 211 are open ends.

[0160] The second radiator 212 is a conductive part of the frame of the second position 202 and the third position 203. The first end (the end close to the third position 203) and the second end (the end close to the second position 202) of the second radiator 212 are open ends.

[0161] The first radiator 211 comprises a first feeding point 231, and the second radiator 212 comprises a second feeding point 232. The first feeding circuit 221 is coupled to the first feeding point 231. The second feeding circuit 222 is coupled to the second feeding point 232. In one embodiment, the first feeding point 231 and the second feeding point 232 are located on the second side 132.

[0162] It should be understood that, for the sake of simplicity of discussion, the embodiments of the present application are only described by taking the electrical connection between the first feeding circuit 221 and the first feeding point 231 as an example. In actual applications, indirect coupling can also be used, and the embodiments of the present application do not limit this. In the embodiments of the present application, the coupling can be understood accordingly.

[0163] The first radiator 211 comprises a first connecting point 2111, and the second radiator 212 comprises a second connecting point 2121. The first tuning circuit 251 is coupled to the first connecting point 2111, and the second tuning circuit 252 is coupled to the second connecting point 2121. In one embodiment, the second connecting point 2121 is located on the first side 131.

[0164] It should be understood that the first tuning circuit 251 and the second tuning circuit 252 can be used to adjust the resonance point frequency of the resonance generated by the first radiator 211 and the second radiator 212, respectively, so that the antenna 200 works in different working frequency bands.

[0165] It should be understood that according to the technical solutions provided in the embodiments of the present application, the first feeding circuit 221 and the second feeding circuit 222 can respectively excite the line DM mode of the first radiator 211 and the second radiator 212. As can be known from the above embodiments, when at least part of the first radiator 211 and the second radiator 212 is arranged on the second side 132, the radiation efficiency and the system efficiency of the resonance generated by the line DM mode of the antenna 200 are relatively high. Since the gain of the antenna is related to the directivity and the 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 electronic device 10 communicates in the first frequency band or the second frequency band, the polarization characteristic of the radiation generated by the antenna 200 is linear polarization, and there is a loss of 3 dB when a circularly polarized electromagnetic wave is received, but since the antenna 200 has good efficiency (radiation efficiency and system efficiency), the corresponding directivity is also good.

[0166] In one embodiment, the length D1 of the first part of the second radiator 212 on the first side 131 and the length D2 of the second part of the second radiator 212 on the second side 132 satisfy: D2 50%≤D1≤D2 150%。

[0167] It should be understood that in Figure 7 In the antenna 200 shown in the figure, the connection area of the first part and the second part of the first radiator 211 is in the shape of a broken line. Therefore, in this case, the length of the first part can be understood as the length of the conductor between the third position 203 and the connection area, and the length of the second part can be understood as the length between the second position 202 and the connection area. In one embodiment, the connection area of the first part and the second part of the second radiator 212 is in the shape of an arc. Therefore, in this case, the length of the first part can be understood as the length of the extension of the first part in the extension direction of the first side 131, and the length of the second part can be understood as the length of the extension of the second part in the extension direction of the second side 132.

[0168] It should be understood that when the second radiator 212 is in the shape of a bend, the length of the first part on the first side 131 and the length of the second part on the second side 132 are within the above range, the resonance generated by the line DM mode has better radiation efficiency and system efficiency.

[0169] In one embodiment, the first tuning circuit 251 and the second tuning circuit 252 are circuits including switches. The switches can be used to switch different resistance values, capacitance values or inductance values of electronic elements coupled with the connection points in different circuit states. Alternatively, the switches can also be in a disconnected state, so that the electronic elements are not coupled with the connection points. Alternatively, the switches can directly couple the floor 300 with the connection points without arranging electronic elements between the floor 300 and the connection points.

[0170] In an embodiment, the first tuning circuit 251 and the second tuning circuit 252 do not include switches, and can be circuits formed by cascading a plurality of electronic elements. The first tuning circuit 251 and the second tuning circuit 252 can have different equivalent capacitance values or equivalent inductance values at different frequencies.

[0171] It should be understood that the tuning circuits described in the embodiments of the present application can be understood with reference to the above embodiments, and the embodiments of the present application do not limit the specific structure of the tuning circuits.

[0172] In an embodiment, the first tuning circuit 251 and the second tuning circuit 252 are in the first circuit state, the first feeding circuit 221 and the first radiator 211 are used to generate a first resonance, and the second feeding circuit 222 and the second radiator 212 are used to generate a second resonance. The resonance frequency band of the first resonance includes a first frequency band, and the resonance frequency band of the second resonance includes a second frequency band.

[0173] In an embodiment, the first frequency band can correspond to a transmission frequency band in satellite communication, and the second frequency band can correspond to a reception frequency band in satellite communication, respectively. Alternatively, in an embodiment, the first frequency band can correspond to a reception frequency band in satellite communication, and the second frequency band can correspond to a transmission frequency band in satellite communication, respectively.

[0174] For example, in the Thales satellite system, the first frequency band can include 1980 MHz-2010 MHz, and the second frequency band can include 2170 MHz-2200 MHz. In the Beidou satellite system, the first frequency band can include 1610 MHz-1626.5 MHz, and the second frequency band can include 2483.5 MHz-2500 MHz. Alternatively, it can also be applied to other satellite communication systems, and the embodiments of the present application do not limit this.

[0175] In an embodiment, at the resonance point of the first resonance, the current on the first radiator 211 is in the same direction. At the resonance point of the second resonance, the current on the second radiator 212 is in the same direction.

[0176] In an embodiment, the length L2 (the length of the second radiator 212) of the frame between the second position 202 and the third position 203 and the length L1 (the length of the first radiator 211) of the frame between the first position 201 and the second position 202 satisfy: L1 80%≤L2≤L1.

[0177] In an embodiment, the length H1 of the frame between the first connecting point 2111 and the second position 202 (or the first position 201) and the length L1 (the length of the first radiator 211) of the frame between the first position 201 and the second position 202 satisfy: H1≤L1 25%. In one embodiment, H1≤L1 15%. In one embodiment, H1 is less than or equal to 8mm.

[0178] In one embodiment, the length H2 of the edge frame between the second connection point 2121 and the third position 203 and the length L2 (the length of the second radiator 212) of the edge frame between the second position 202 and the third position 203 satisfy: H2≤L2 25%. In one embodiment, H2≤L2 15%. In one embodiment, H2 is less than or equal to 5mm.

[0179] It should be understood that in the embodiments of the present application, the length of the edge frame (or the radiator) between A and B can be understood as the length of the conductor portion between A and B. For example, when coupled to A or B by a metal part such as a metal spring, it can be understood as the distance between the center of the end of the metal part connected to A or B.

[0180] It should be understood that the first connection point 2111 and the second connection point 2121 can be arranged near the gap, and the first end and the second end of the second radiator 212 and the first radiator 211 are open ends. In the area near the open end, there is generally a strong electric field, and the area with a strong electric field has better tuning performance.

[0181] In one embodiment, the first position 201 and the second position 202 are symmetrical along the virtual axis of the second edge 132, and the lengths of the second edge on both sides of the virtual axis are the same. Due to the existence of certain errors in engineering applications, when the proportion of the distance between the virtual axis and the first position 201 and the second position 202 is greater than or equal to 90% and less than or equal to 110%, it can be considered that the second position 202 and the third position 203 are symmetrical along the virtual axis of the second edge 132.

[0182] It should be understood that as the symmetry of the first radiator 211 increases, the radiation characteristics (such as bandwidth, radiation efficiency, etc.) of the antenna 200 are improved.

[0183] In one embodiment, the edge frame 11 further includes a first grounding point 241 and a second grounding point 242, as shown in Figure 8 The edge frame 11 is coupled to the floor 300 at the first grounding point 241 and the second grounding point 242. The first grounding point 241 is located between the first connection point 2111 and the first feeding point 231. The second grounding point 242 is located between the second connection point 2121 and the second feeding point 232.

[0184] It should be understood that when the first radiator 211 and the second radiator 212 include the grounding points, the working modes of the first radiator 211 and the second radiator 212 can include the line CM mode, and the antenna 200 can improve the radiation characteristics of the first frequency band and the second frequency band through the line CM mode.

[0185] In an embodiment, the first grounding point 241 can be located at a central region of the first radiator 211. The central region of the first radiator 211 can be understood as a region within 5 mm from the center of the first radiator 211, and the central region described in the embodiments of the present application can be understood accordingly.

[0186] In an embodiment, the second grounding point 242 can be located at a central region of the second radiator 212.

[0187] It should be understood that when the first radiator 211 generates the first resonance or the second radiator 212 generates the fourth resonance, it can correspond to the line DM mode. In the line DM mode, the central region includes a current large point, and the first grounding point 241 located in the region near the current large point will not affect the first resonance, and the second grounding point 242 will not affect the second resonance.

[0188] In an embodiment, the distance between the first feeding point 231 and the first position 201 and the distance between the first feeding point 231 and the second position 202 are different, so that the first radiator 211 generates the line CM mode and the line DM mode at the same time.

[0189] It should be understood that the distance between the first feeding point 231 and the first position 201 and the second position 202 can be understood as that the absolute value of the difference between the first distance between the first feeding circuit 221 and the first position 201 and the second distance between the first feeding point 231 and the second position 202 is greater than or equal to 5 mm. Meanwhile, for the sake of brevity of the discussion, the distance difference in the embodiments of the present application can be understood accordingly.

[0190] In an embodiment, the distance between the second feeding point 232 and the third position 203 and the distance between the second feeding point 232 and the second position 202 are different, so that the second radiator 212 generates the line CM mode and the line DM mode at the same time.

[0191] In one embodiment, the antenna 200 can further include a third tuning circuit 253 and a fourth tuning circuit 254. The first radiator 211 can further include a third connection point 2112. The second radiator 212 can further include a fourth connection point 2122. The first ground point 241 is located between the first connection point 2111 and the third connection point 2112. The second ground point 242 is located between the second connection point 2121 and the fourth connection point 2122. The third tuning circuit 253 is coupled with the third connection point 2112. The fourth tuning circuit 254 is coupled with the fourth connection point 2122.

[0192] In one embodiment, the length H3 of the frame between the third connection point 2112 and the first position 201 and the length L1 of the frame between the first position 201 and the second position 202 (the length of the first radiator 211) satisfy: H3≤L1 25%. In one embodiment, H3≤L1 15%. In one embodiment, H3 is less than or equal to 8mm.

[0193] In one embodiment, the length H4 of the frame between the fourth connection point 2122 and the second position 202 and the length L2 of the frame between the second position 202 and the third position 203 (the length of the second radiator 212) satisfy: H4≤L2 25%. In one embodiment, H4≤L2 15%. In one embodiment, H4 is less than or equal to 5mm.

[0194] In one embodiment, the first tuning circuit 251 and the third tuning circuit 253 are in the first circuit state, the first feeding circuit 221 and the first radiator 211 are used to generate the first resonance and the third resonance, and the resonance point frequency of the third resonance is lower than the resonance point frequency of the first resonance.

[0195] In one embodiment, the second tuning circuit 252 and the fourth tuning circuit 254 are in the first circuit state, the second feeding circuit 222 and the second radiator 212 are used to generate the second resonance and the fourth resonance, and the resonance point frequency of the fourth resonance is lower than the resonance point frequency of the second resonance.

[0196] It should be understood that according to the technical scheme provided by the embodiments of the present application, the edge feed (for example, the distance between the first feeding point 231 and the first position 201 and the second position 202 is different) can stimulate the line CM mode and the line DM mode of the radiator at the same time. In the first circuit state, the first resonance is mainly generated by the line DM mode of the first radiator 211, the third resonance is mainly generated by the line CM mode of the first radiator 211, the second resonance is mainly generated by the line DM mode of the second radiator 212, and the fourth resonance is mainly generated by the line CM mode of the second radiator 212.

[0197] In one embodiment, the frequency difference between the resonance point of the first resonance and the resonance point of the third resonance is greater than or equal to 100 MHz and less than or equal to 300 MHz. In one embodiment, the frequency difference between the resonance point of the second resonance and the resonance point of the fourth resonance is greater than or equal to 100 MHz and less than or equal to 300 MHz.

[0198] It should be understood that the first radiator 211 resonates by the line CM mode and the line DM mode. When the frequency difference between the resonance point of the first resonance (the second resonance) and the resonance point of the third resonance (the fourth resonance) is greater than or equal to 100 MHz and less than or equal to 300 MHz, the proportion of the line DM mode in the first resonance (the second resonance) can be increased, so that the antenna 200 mainly radiates by the line DM mode in the resonance frequency band of the first resonance (the second resonance), to improve the radiation efficiency and system efficiency of the antenna 200 in the first frequency band (the second frequency band). When the frequency difference between the resonance point of the first resonance (the second resonance) and the resonance point of the third resonance (the fourth resonance) is greater than 300 MHz, the proportion of other operating modes (for example, the line CM mode) in the first resonance (the second resonance) is increased, which can cause the radiation efficiency and system efficiency of the antenna 200 in the first frequency band (the second frequency band) to decrease.

[0199] In one embodiment, the frequency difference between the resonance point of the fourth resonance and the resonance point of the first resonance is greater than or equal to 200 MHz and less than or equal to 500 MHz (the resonance point frequency of the fourth resonance is higher than the resonance point frequency of the first resonance). Alternatively, in one embodiment, the frequency difference between the resonance point of the third resonance and the resonance point of the second resonance is greater than or equal to 200 MHz and less than or equal to 500 MHz (the resonance point frequency of the third resonance is higher than the resonance point frequency of the second resonance).

[0200] It should be understood that, since the end of the radiator on both sides of the second position 202 is an open end, when the first feeding circuit 221 (or the second feeding circuit 222) feeds an electrical signal, the coupling between the first radiator 211 and the second radiator 212 is strong. Therefore, the second radiator 212 can be excited to generate the fourth resonance (or the third resonance generated by the first radiator 211) by indirect coupling. When the frequency difference between the resonance point of the fourth resonance (the third resonance) and the resonance point of the first resonance (or the second resonance generated by the second radiator 212) generated by the first radiator 211 is greater than or equal to 200 MHz and less than or equal to 500 MHz, the radiation efficiency and system efficiency of the antenna 200 in the first frequency band (the second frequency band) are improved.

[0201] In one embodiment, the first feeding point 231 can coincide with the third connection point 2112. In one embodiment, the second feeding point 232 can coincide with the fourth connection point 2122.

[0202] It should be understood that in the embodiments of the present application, the feeding circuit can be coupled to the feeding point through a feeding member (e.g. a metal spring). When the feeding point coincides with the connecting point, both the tuning circuit and the feeding circuit can be coupled to the radiator (feeding point / connecting point) through the feeding member, so as to reduce the connecting position on the radiator and facilitate engineering implementation.

[0203] Figure 9 and Figure 10 is Figure 8 the simulation results of the antenna 200 in the electronic device 10 shown in FIG. 8. Among them, Figure 9 is Figure 8 the S-parameter simulation results of the antenna 200 in the electronic device 10 shown in FIG. 8. Figure 10 is Figure 8 the simulation results of the system efficiency and the radiation efficiency of the antenna 200 in the electronic device 10 shown in FIG. 8.

[0204] For the sake of brevity of discussion, in the antenna 200 shown in FIG. 8, the first frequency band is taken as the receiving frequency band (2483.5MHz-2500MHz) in the Beidou satellite system, and the second frequency band is taken as the transmitting frequency band (1610MHz-1626.5MHz) in the Beidou satellite system for example. Figure 8 As shown in FIG. 8, compared with the quarter-wavelength mode, the second radiator can resonate at about 1.45GHz (which can correspond to the fourth resonance described above) and about 1.6GHz (which can correspond to the second resonance described above) through the line CM mode and the line DM mode respectively.

[0205] Figure 9 It should be understood that the quarter-wavelength mode described above can be understood as that the second connecting point is directly electrically connected to the floor or electrically connected to the floor through a 0 ohm resistor, and radiation is only generated by the conductor part between the second connecting point and the second position (the first end of the conductor part is an open end, and the second end is a grounded end). In the quarter-wavelength mode, the current and the electric field are in the same direction on the radiator, and the current large point is located near the grounded end, and the electric field large point is located near the open end.

[0206] As shown in FIG. 8, compared with the quarter-wavelength mode, in the second frequency band, when the second radiator resonates through the line CM mode and the line DM mode, the system efficiency is improved by about 1.4dB.

[0207] As shown in FIG. 8, compared with the quarter-wavelength mode, in the second frequency band, when the second radiator resonates through the line CM mode and the line DM mode, the system efficiency is improved by about 1.4dB. Figure 10

[0208] and Figure 11 is Figure 12 the current distribution diagram of the antenna 200 in the electronic device 10 shown in FIG. 8. Among them, Figure 8 is Figure 11 is Figure 8 ​The current distribution diagram corresponding to the first resonance (for example, 2.5 GHz) of the antenna 200 in the electronic device 10 shown. Figure 12 Figure 8 The current distribution diagram corresponding to the second resonance (for example, 1.62 GHz) of the antenna 200 in the electronic device 10 shown.

[0209] As shown, when the antenna generates the first resonance, the radiation is mainly generated by the frame (the first radiator) between the first position 201 and the second position 202. At the resonance point of the first resonance, the currents on the first radiator are in the same direction, which can correspond to the linear DM mode described above. Figure 11

[0210] As shown, when the antenna generates the second resonance, the radiation is mainly generated by the frame (the second radiator) between the second position 202 and the third position 203. At the resonance point of the second resonance, the currents on the second radiator are in the same direction, which can correspond to the linear DM mode described above. Figure 12

[0211] Figure 13 The directivity diagram of the antenna 200 in the electronic device 10 shown. Figure 14 Figure 8 The directivity diagram corresponding to the first resonance (for example, 2.5 GHz) of the antenna 200 in the electronic device 10 shown. Figure 13 Figure 8 The directivity diagram corresponding to the second resonance (for example, 1.62 GHz) of the antenna 200 in the electronic device 10 shown. Figure 14 Figure 8 It should be understood that, for the sake of brevity of the discussion, the top direction of the electronic device is taken as an example to be described as the y direction in the embodiments of the present application. In the directivity diagrams shown in the embodiments of the present application, only the directivity diagram in the xoz plane is shown, wherein the horizontal coordinate is the angle (°) with the x axis, and the vertical coordinate is the angle

[0212] (°) with the z axis. As shown, when the antenna is fed with an electrical signal by the first feed point, the maximum radiation direction of the directivity diagram generated by the first resonance of the antenna is located in the region of 30°≤ ≤90°, 120°≤

[0213] ≤150°. Within the range of ±15° of the maximum radiation direction, the directivity coefficient of the right-hand circular polarization (the polarization mode of the receiving frequency band (the first frequency band) in the Beidou satellite system is right-hand circular polarization) is 0dBi. Figure 13 As shown, when the antenna is fed with an electrical signal by the first feed point, the maximum radiation direction of the directivity diagram generated by the first resonance of the antenna is located in the region of 30°≤ ≤90°, 120°≤ ≤150°. Within the range of ±15° of the maximum radiation direction, the directivity coefficient of the right-hand circular polarization (the polarization mode of the receiving frequency band (the first frequency band) in the Beidou satellite system is right-hand circular polarization) is 0dBi.

[0214] Figure 14 ​​​​​​As shown, when the antenna is fed with an electric signal by the second feeding point, the maximum radiation direction of the antenna in the direction pattern generated by the second resonance is located in the region of 30°≤ ≤120°, 30°≤ ≤150°. In the range of ±15° of the maximum radiation direction, the directivity coefficient of the left-handed circular polarization (in the Beidou satellite system, the polarization mode of the transmission frequency band (the second frequency band) is left-handed circular polarization) is -0.9dBi.

[0215] As shown in Figure 13 and Figure 14 , the maximum radiation directions of the direction patterns generated by the first resonance and the second resonance of the antenna are approximately the same (located in =60°, =120°), which meets the demand of angle alignment of the transmission frequency band and the receiving frequency band in satellite communication, and can improve the accuracy of the antenna in transmitting an electric signal.

[0216] Figure 15 and Figure 16 are the direction patterns of the antenna 200 in the electronic device 10 shown in Figure 8 when the user holds the electronic device with the left hand (hand left, HL). Among them, Figure 15 is the direction pattern of the antenna 200 in the electronic device 10 shown in Figure 8 when the antenna 200 works at the first resonance (for example, 2.5GHz). Figure 16 is the direction pattern of the antenna 200 in the electronic device 10 shown in Figure 8 when the antenna 200 works at the second resonance (for example, 1.62GHz).

[0217] As shown in Figure 15 and Figure 16 , in the case of holding the electronic device with the left hand, since part of the first radiator and the second radiator are located at the top of the electronic device, the influence on the antenna when the user holds the electronic device is small, and the maximum radiation directions of the direction patterns generated by the resonance points of the first resonance and the second resonance of the antenna are approximately the same. In the case of holding the electronic device with the left hand, the maximum radiation directions of the direction patterns generated by the first resonance and the second resonance of the antenna are approximately the same (located in =75°, =90°), which meets the demand of angle alignment of the transmission frequency band and the receiving frequency band in satellite communication, and can improve the accuracy of the antenna in transmitting an electric signal.

[0218] In the first resonance (for example, 2.5GHz), in the range of ±15° of the maximum radiation direction, the directivity coefficient of the right-handed circular polarization (in the Beidou satellite system, the polarization mode of the receiving frequency band (the first frequency band) is right-handed circular polarization) is 0.3dBi.

[0219] At the second resonance (for example, 1.62 GHz), the directivity coefficient of the left-hand circular polarization (the polarization mode of the transmitting frequency band (the second frequency band) in the Beidou satellite system is left-hand circular polarization) is -0.7dBi within the range of ±15° of the maximum radiation direction.

[0220] Figure 17 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0221] As shown in Figure 17 , the first connection point 2111 is located between the first connection point 241 and the first position 201, and the third connection point 2112 is located between the first connection point 241 and the second position 202. The first feeding point 231 is located between the first connection point 241 and the second position 202.

[0222] It should be understood that, in the embodiment shown in Figure 8 , the first connection point 2111 is set between the first connection point 241 and the second position 202 (close to the second position 202) as an example for description, and in actual application, the first connection point 2111 can also be set between the first connection point 241 and the first position 201, as shown in Figure 15 . Therefore, the antenna 200 shown in Figure 17 is different from the antenna 200 shown in Figure 8 only in the positions of the first connection point 2111, the third connection point 2112, and the first feeding point 231.

[0223] Figure 18 and Figure 19 are the directional patterns of the antenna 200 in the electronic device 10 shown in Figure 17 . Among them, Figure 18 is the directional pattern corresponding to the first resonance (for example, 1.62 GHz) of the antenna 200 in the electronic device 10 shown in Figure 17 . Figure 19 is the directional pattern corresponding to the second resonance (for example, 2.5 GHz) of the antenna 200 in the electronic device 10 shown in Figure 17 .

[0224] It should be understood that, for the sake of brevity of the discussion, in the antenna 200 shown in Figure 17 , the first frequency band is taken as the transmitting frequency band (1610MHz-1626.5MHz) in the Beidou satellite system, and the second frequency band is taken as the receiving frequency band (2483.5MHz-2500MHz) in the Beidou satellite system for example.

[0225] As shown in Figure 18 , when the antenna is fed with an electrical signal by the first feeding point, the maximum radiation direction of the directional pattern generated by the antenna at the first resonance is located at 90°≤ ≤ 180°, 120° ≤ The actual gain of the left-handed circular polarization (the polarization mode of the transmitting frequency band (the first frequency band) in the Beidou satellite system is left-handed circular polarization) is -6.7 dBi within a range of ± 15° of the maximum radiation direction.

[0226] As shown in FIG. 1A, when the antenna is fed with an electrical signal by the first feed point, the maximum radiation direction of the pattern generated by the first resonance of the antenna is located in a region of 90° ≤ Figure 19 ≤ 150°, 30° ≤ The actual gain of the right-handed circular polarization (the polarization mode of the receiving frequency band (the second frequency band) in the Beidou satellite system is right-handed circular polarization) is -5.4 dBi within a range of ± 15° of the maximum radiation direction. As shown in FIG. 1A and FIG. 1B, the maximum radiation directions of the patterns generated by the first resonance and the second resonance of the antenna are substantially the same (located in a region of 120° ≤

[0227] ≤ 150°), satisfying the requirement of angle alignment between the transmitting frequency band and the receiving frequency band in satellite communication, and can improve the accuracy of the antenna in transmitting electrical signals. Figure 18 Figure 19 As shown in FIG. 1A and FIG. 1B, the maximum radiation directions of the patterns generated by the first resonance and the second resonance of the antenna are substantially the same (located in a region of 120° ≤ = 120°, = 150°), satisfying the requirement of angle alignment between the transmitting frequency band and the receiving frequency band in satellite communication, and can improve the accuracy of the antenna in transmitting electrical signals.

[0228] Figure 20 As shown in FIG. 2A, FIG. 2B, FIG. 3A and FIG. 3B, the antenna 200 in the electronic device 10 has a pattern in the direction in which the user holds the electronic device with the left hand. Figure 21 As shown in FIG. 2A, FIG. 2B, FIG. 3A and FIG. 3B, the antenna 200 in the electronic device 10 has a pattern in the direction in which the user holds the electronic device with the left hand. Figure 17 As shown in FIG. 2A, FIG. 2B, FIG. 3A and FIG. 3B, the antenna 200 in the electronic device 10 has a pattern in the direction in which the user holds the electronic device with the left hand. Figure 20 As shown in FIG. 2A, FIG. 2B, FIG. 3A and FIG. 3B, the antenna 200 in the electronic device 10 has a pattern in the direction in which the user holds the electronic device with the left hand. Figure 17 As shown in FIG. 2A, FIG. 2B, FIG. 3A and FIG. 3B, the antenna 200 in the electronic device 10 has a pattern in the direction in which the user holds the electronic device with the left hand. Figure 21 As shown in FIG. 2A, FIG. 2B, FIG. 3A and FIG. 3B, the antenna 200 in the electronic device 10 has a pattern in the direction in which the user holds the electronic device with the left hand. Figure 17 As shown in FIG. 2A, FIG. 2B, FIG. 3A and FIG. 3B, the antenna 200 in the electronic device 10 has a pattern in the direction in which the user holds the electronic device with the left hand.

[0229] As shown in FIG. 2A, FIG. 2B, FIG. 3A and FIG. 3B, the antenna 200 in the electronic device 10 has a pattern in the direction in which the user holds the electronic device with the left hand. Figure 20 As shown in FIG. 2A, FIG. 2B, FIG. 3A and FIG. 3B, the antenna 200 in the electronic device 10 has a pattern in the direction in which the user holds the electronic device with the left hand. Figure 21 As shown in FIG. 2A, FIG. 2B, FIG. 3A and FIG. 3B, the antenna 200 in the electronic device 10 has a pattern in the direction in which the user holds the electronic device with the left hand. = 106°, = 100°), satisfying the requirement of angle alignment between the transmitting frequency band and the receiving frequency band in satellite communication, and can improve the accuracy of the antenna in transmitting electrical signals. ​

[0230] At the first resonance (for example, 1.62 GHz), the actual gain of the left-hand circular polarization (the polarization mode of the transmitting frequency band (the first frequency band) in the Beidou satellite system is left-hand circular polarization) is -6.6 Bi within the range of ± 15° of the maximum radiation direction.

[0231] At the second resonance (for example, 2.5 GHz), the actual gain of the right-hand circular polarization (the polarization mode of the receiving frequency band (the second frequency band) in the Beidou satellite system is right-hand circular polarization) is -5.5 dBi within the range of ± 15° of the maximum radiation direction.

[0232] Figure 22 FIG. 1 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0233] As shown in FIG. 1, the frame 11 can include a first position 201, a second position 202, and a third position 203 arranged in sequence. The frame 11 is provided with a first slit, a second slit, and a third slit at the first position 201, the second position 202, and the third position 203, respectively. Figure 22 The first radiator 211 is a conductive part of the frame at the first position 201 and the second position 202. The second radiator 212 is a conductive part of the frame at the second position 202 and the third position 203.

[0234] The first radiator 211 includes a first feeding point 231, and the first feeding circuit 221 is coupled to the first feeding point 231. The first radiator 211 includes a first connecting point 2111, and the second radiator 212 includes a second connecting point 2121. The first tuning circuit 251 is coupled to the second connecting point 2121, and the second tuning circuit 252 is coupled to the first connecting point 2111.

[0235] It should be understood that, compared with the antenna 200 shown in FIG. 2,

[0236] the antenna 200 shown in FIG. 1 can only include the first feeding point 231. In the antenna 200 shown in FIG. 2, Figure 7 the first resonance and the second resonance are generated by means of split feeding (the first feeding point provided by the first radiator 211 feeds the electrical signal of the first frequency band to generate the first resonance, and the second feeding point provided by the second radiator 212 feeds the electrical signal of the second frequency band to generate the second resonance). Figure 22 Figure 7 While in the antenna 200 shown in FIG. 3,

[0237] the first resonance and the second resonance are generated by means of split feeding (the first feeding point provided by the first radiator 211 feeds the electrical signal of the first frequency band to generate the first resonance, and the second feeding point provided by the second radiator 212 feeds the electrical signal of the second frequency band to generate the second resonance). Figure 22 ​In the shown antenna 200, the first frequency band and the second frequency band are fed by the first feeding point 231, the first radiator 211 serves as a main radiator and the second radiator 212 serves as a parasitic branch, the first resonance is generated by the first radiator 211 and the second resonance (parasitic resonance) is generated by the second radiator 212, so that the working frequency bands of the antenna 200 include the first frequency band and the second frequency band.

[0238] In one embodiment, the length of the first radiator 211 between the first feeding point 231 and the second position 202 is less than the length of the first radiator 211 between the first connection point 2111 and the second position 202. In one embodiment, the first feeding point 231 is located at the first end of the first radiator 211 (the end close to the second position 202) to better excite the second radiator 212 to generate.

[0239] In one embodiment, the length of the second radiator 212 between the second connection point 2121 and the third position 203 is less than the length of the second radiator 212 between the second connection point 2121 and the second position 202. In one embodiment, the second connection point 2121 is located at the second end of the second radiator 212 (the end close to the third position 203) to better adjust the resonance point frequency of the second resonance generated by the second radiator 212.

[0240] In one embodiment, the first feeding circuit 221 includes a first radio frequency channel 2211 and a second radio frequency channel 2212, the first radio frequency channel 2211 (for feeding the electrical signal of the first frequency band) is used to generate the first resonance, and the second radio frequency channel 2212 (for feeding the electrical signal of the second frequency band) is used to generate the second resonance. Wherein, the first radio frequency channel 2211 and the second radio frequency channel 2212 can be understood as two different electrical signal transmission circuits, for example, can be understood as two different radio frequency channels in a radio frequency chip (RF IC).

[0241] It should be understood that the embodiments of the present application feed the antenna 200 with electrical signals by means of combined feeding, which can reduce the feeding points on the radiators and reduce the complexity of system design.

[0242] In one embodiment, when the transmitting frequency band and the receiving frequency band in satellite communication work in time division duplexing (TDD), the first feeding circuit 221 can further include a switch. The first end of the switch is coupled with the first feeding point 231, the second end is coupled with the first radio frequency channel 2211, and the third end is coupled with the second radio frequency channel 2212. The switch can be used to switch the radio frequency channel coupled with the first feeding point 231 (switch the frequency of the fed electrical signal).

[0243] It should be understood that when the transmitting frequency band and the receiving frequency band operate in TDD, the antenna can generate the first resonance and the second resonance by the coupling connection state of the first end and the second end and the third end of the switch in different time slots.

[0244] Meanwhile, the switch is connected in series between the first radio frequency channel 2211 and the second radio frequency channel 2212 and the coupling of the first feeding point 231. The switch can be located at any position of the first feeding circuit 221, for example, close to the first feeding point 231 or away from the first feeding point 231. The embodiment of the present application is only exemplary and does not limit the specific position of the switch.

[0245] In one embodiment, when the transmitting frequency band and the receiving frequency band in satellite communication operate in frequency division duplexing (FDD), the first feeding circuit 221 can further include a combiner. The first end of the combiner is coupled with the first feeding point 231, the second end is coupled with the first radio frequency channel 2211, and the third end is coupled with the second radio frequency channel 2212.

[0246] It should be understood that when the transmitting frequency band and the receiving frequency band operate in FDD, the first radio frequency channel 2211 and the second radio frequency channel 2212 can simultaneously feed in the electrical signal through the combiner, and the antenna 200 simultaneously generates the first resonance and the second resonance.

[0247] In one embodiment, the first feeding point 231 is located at the first radiator 211, and the resonance point frequency of the first resonance is lower than the resonance point frequency of the second resonance (parasitic resonance).

[0248] In one embodiment, the first feeding point 231 is located at the second radiator 212. In one embodiment, the first feeding point 231 is located at the second edge 132, as shown in the figure. When the first feeding point 231 is located at the second radiator 212, the second radiator serves as the main radiator, and the first radiator 211 serves as the parasitic branch, and the first resonance generated by the first radiator 211 is the parasitic resonance. Figure 23

[0249] In one embodiment, the first feeding point 231 is located at the second radiator 212. The resonance point frequency of the first resonance (parasitic resonance) is higher than the resonance point frequency of the second resonance.

[0250] Figure 24 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0251] As shown in the figure, the electronic device 10 includes a first antenna 1001 and a second antenna 1002. Figure 24 ​As shown, the bezel 11 can include a first position 201, a second position 202 and a third position 203 arranged in sequence. The bezel 11 is provided with a first slit, a second slit and a third slit at the first position 201, the second position 202 and the third position 203 respectively. The bezel 11 further includes a first grounding point 241 between the first position 201 and the second position 202. The bezel 11 is coupled to the floor 300 at the first grounding point 241.

[0252] The first radiator 211 is a conductive part of the bezel 11 between the first grounding point 241 and the second position 202. The second radiator 212 is a conductive part of the bezel 11 between the third position 203 and the second position 202. The first radiator 211 includes a first feeding point 231, and the first feeding circuit 221 is coupled to the first feeding point 231.

[0253] The second radiator 212 includes a second connecting point 2121. The second tuning circuit 252 is coupled to the first connecting point 2111.

[0254] In one embodiment, the first connecting point 2111 is directly coupled to the floor 300, and no electronic element is arranged between the floor 300 and the first connecting point 2111.

[0255] It should be understood that, compared with the antenna 200 as shown in FIG. 1, Figure 22 the antenna 200 as shown in FIG. 2, Figure 24 the first radiator 211 of the antenna 200 as shown in FIG. 2 is different. In the antenna 200 as shown in FIG. 1, Figure 22 the first radiator 211 is a conductive part of the bezel 11 between the first position 201 and the second position 202, the first end and the second end of the first radiator 211 and the first end and the second end of the second radiator 212 are open ends, and the first radiator 211 and the second radiator 212 can work in a half-wavelength mode of the line DM mode, and the current and electric field distribution thereof can refer to FIG. 2. Figure 3

[0256] In the antenna 200 as shown in FIG. 2, Figure 24 the first radiator 211 is a conductive part of the bezel 11 between the first grounding point 241 and the second position 202, the first end of the first radiator 211 is a grounding end, and the second end is an open end, and the first radiator 211 can work in a quarter-wavelength mode. The first end and the second end of the second radiator 212 are open ends, and the second radiator 212 can work in a half-wavelength mode of the line DM mode.

[0257] In the antenna 200 as shown in FIG. 2, Figure 24 ​In the shown antenna 200, the first frequency band and the second frequency band are fed by the first feeding point 231, the first radiator 211 acts as a main radiator and the second radiator 212 acts as a parasitic branch, the first resonance is generated by the first radiator 211 and the second resonance (parasitic resonance) is generated by the second radiator 212, so that the operating frequency band of the antenna 200 includes the first frequency band and the second frequency band.

[0258] In one embodiment, the length of the first radiator 211 between the first feeding point 231 and the second position 202 is greater than the length of the first radiator 211 between the first feeding point and the first grounding point 241.

[0259] It should be understood that the first radiator 211 can form a structure of a left-handed antenna, which can be, for example, an antenna conforming to a composite right and left hand (CRLH) transmission line structure.

[0260] In one embodiment, the first feeding point 231 is located on the first radiator 211, and the resonance point frequency of the first resonance is lower than the resonance point frequency of the second resonance (parasitic resonance).

[0261] In one embodiment, the first feeding point 231 can also be located on the second radiator 212, and the first feeding circuit 221 is coupled to the first feeding point 231, as shown. Figure 25 The first radiator 211 is a conductive part of the frame of the first position 201 and the second position 202. The second radiator 212 is a conductive part of the frame 11 between the second grounding point 242 and the second position 202.

[0262] In one embodiment, the second connection point 2121 is directly coupled to the ground plate 300, and no electronic element is arranged between the ground plate 300 and the second connection point 2121. In one embodiment, the first feeding point 231 is located on the second side 132.

[0263] It should be understood that when the first feeding point 231 is located on the second radiator 212, the second radiator 212 acts as a main radiator and can operate in a quarter wavelength mode, and the first radiator 211 acts as a parasitic branch, the first resonance generated by the first radiator 211 is a parasitic resonance and can operate in a half wavelength mode of the line DM mode.

[0264] In one embodiment, the first feeding point 231 is located on the second radiator 212. The resonance point frequency of the first resonance (parasitic resonance) is higher than the resonance point frequency of the second resonance.

[0265] Figure 26 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0266] AsFigure 26 As shown, the frame 11 can include a first side 131, a second side 132, and a third side 133. The first side 131 and the third side 133 are angularly intersected with the second side 132. The length of the first side 131 is greater than the length of the second side 132. The length of the third side 133 is greater than the length of the second side 132.

[0267] The frame 11 can include a first position 201, a second position 202, a third position 203, and a fourth position 204. The third position 203 is located on the first side 131, and the fourth position 204 is located on the third side 133. The first position 201 and the second position 202 are located on the second side 132. The first position 201 is located between the second position 202 and the fourth position 204. The frame 11 is provided with a first slit, a second slit, a third slit, and a fourth slit at the first position 201, the second position 202, the third position 203, and the fourth position 204, respectively.

[0268] The first radiator 211 is a conductive part of the frame at the first position 201 and the fourth position 204. The first end (the end close to the second position 202) and the second end (the end close to the fourth position 204) of the first radiator 211 are open ends.

[0269] The second radiator 212 is a conductive part of the frame at the second position 202 and the third position 203. The first end (the end close to the third position 203) and the second end (the end close to the second position 202) of the second radiator 212 are open ends.

[0270] The first radiator 211 includes a first feeding point 231, and the second radiator 212 includes a second feeding point 232. The first feeding circuit 221 is coupled to the first feeding point 231. The second feeding circuit 222 is coupled to the second feeding point 232. In an embodiment, the first feeding point 231 and the second feeding point 232 are located on the second side 132.

[0271] The first radiator 211 includes a fifth connecting point 2113, and the second radiator 212 includes a second connecting point 2121. The fifth tuning circuit 255 is coupled to the fifth connecting point 2113, and the second tuning circuit 252 is coupled to the second connecting point 2121. In an embodiment, the second connecting point 2121 is located on the first side 131. In an embodiment, the fifth connecting point 2113 is located on the third side 133.

[0272] It should be understood that the fifth tuning circuit 255 and the second tuning circuit 252 can be used to adjust the resonance point frequency of the resonance generated by the first radiator 211 and the second radiator 212, respectively, so that the antenna 200 operates at different operating frequency bands.

[0273] It should be understood that, compared with the first tuning circuit 251 and the second tuning circuit 252, the fifth tuning circuit 255 and the second tuning circuit 252 are located on the first side 131 and the third side 133, respectively. Figure 7The antenna 200 shown, Figure 26 The antenna 200 shown differs in the position between the first radiator 211 and the second radiator 212.

[0274] In Figure 7 In the antenna 200 shown, the first radiator 211 and the second radiator 212 are arranged adjacently, and the first end (the end close to the second position 202) of the first radiator 211 and the second end (the end close to the second position 202) of the second radiator 212 are opposite and do not contact each other. In the antenna 200 shown, Figure 26 In the antenna 200 shown, the first radiator 211 and the second radiator 212 are arranged adjacently, and the first end (the end close to the second position 202) of the first radiator 211 and the second end (the end close to the second position 202) of the second radiator 212 are opposite and do not contact each other. In the antenna 200 shown,

[0275] In one embodiment, the length D1 of the first part of the second radiator 212 on the first edge 131 and the length D2 of the second part of the second radiator 212 on the second edge 132 satisfy: D2 50%≤D1≤D2 150%。

[0276] In one embodiment, the length D3 of the third part of the first radiator 211 on the third edge 133 and the length D4 of the fourth part of the first radiator 211 on the second edge 132 satisfy: D4 50%≤D3≤D4 150%。

[0277] In one embodiment, the fifth tuning circuit 255 and the second tuning circuit 252 are in the first circuit state, the first feeding circuit 221 and the first radiator 211 are used to generate the first resonance, and the second feeding circuit 222 and the second radiator 212 are used to generate the second resonance. The resonance frequency band of the first resonance includes the first frequency band, and the resonance frequency band of the second resonance includes the second frequency band.

[0278] In one embodiment, at the resonance point of the first resonance, the currents on the first radiator 211 are in the same direction. At the resonance point of the second resonance, the currents on the second radiator 212 are in the same direction.

[0279] In one embodiment, the length L2 of the frame between the second position 202 and the third position 203 (the length of the second radiator 212) and the length L3 of the frame between the first position 201 and the fourth position 204 (the length of the first radiator 211) satisfy: L3 70%≤L2≤L3.

[0280] In one embodiment, the length H5 of the frame between the fifth connection point 2115 and the fourth position 204 and the length L3 of the frame between the first position 201 and the fourth position 204 (the length of the first radiator 211) satisfy: H5≤L3 25%. In one embodiment, H5≤ L3 15%. In one embodiment, H5is less than or equal to 5mm.

[0281] In one embodiment, the length H2 of the edge frame between the second connection point 2121 and the third position 203 and the length L2 of the edge frame between the second position 202 and the third position 203 (the length of the second radiator 212) satisfy: H2≤ L2 25%. In one embodiment, H2≤ L2 15%. In one embodiment, H2is less than or equal to 5mm.

[0282] In one embodiment, the edge frame 11 further comprises a third grounding point 243 and a second grounding point 242. The edge frame 11 is coupled to the floor 300 at the third grounding point 243 and the second grounding point 242. The third grounding point 243 is located between the first connection point 2111 and the first feeding point 231. The second grounding point 242 is located between the second connection point 2121 and the second feeding point 232.

[0283] It should be understood that when the first radiator 211 and the second radiator 212 comprise grounding points, the operating mode of the first radiator 211 and the second radiator 212 can comprise the line CM mode, through which the antenna 200 can improve the radiation characteristics of the first frequency band and the second frequency band.

[0284] In one embodiment, the third grounding point 243 can be located in the central region of the first radiator 211. In one embodiment, the second grounding point 242 can be located in the central region of the second radiator 212.

[0285] It should be understood that when the first radiator 211 generates the first resonance or the second radiator 212 generates the fourth resonance, it can correspond to the line DM mode. In the line DM mode, the central region comprises a large current point, and the first grounding point 241 or the second grounding point 242 located in the region near the large current point has no effect on the first resonance or the second resonance.

[0286] In one embodiment, the distance between the first feeding point 231 and the first position 201 and the distance between the first feeding point 231 and the fourth position 204 are different, so that the first radiator 211 simultaneously generates the line CM mode and the line DM mode.

[0287] In one embodiment, the distance between the second feeding point 232 and the third position 203 and the distance between the second feeding point 232 and the second position 202 are different, so that the second radiator 212 simultaneously generates the line CM mode and the line DM mode.

[0288] In one embodiment, the antenna 200 can further include a sixth tuning circuit 256 and a fourth tuning circuit 254. The first radiator 211 can further include a sixth connection point 2114. The second radiator 212 can further include a fourth connection point 2122. A third connection point 243 is located between the first connection point 2111 and the sixth connection point 2114. A second connection point 242 is located between the second connection point 2121 and the fourth connection point 2122. The sixth tuning circuit 256 is coupled with the sixth connection point 2114. The fourth tuning circuit 254 is coupled with the fourth connection point 2122.

[0289] In one embodiment, a length H6 of a frame between the sixth connection point 2114 and the first position 201 and a length L3 of a frame between the first position 201 and the fourth position 204 (a length of the first radiator 211) satisfy: H6≤L3 25%. In one embodiment, H6≤L3 15%. In one embodiment, H6 is less than or equal to 5mm.

[0290] In one embodiment, a length H4 of a frame between the fourth connection point 2122 and the second position 202 and a length L2 of a frame between the second position 202 and the third position 203 (a length of the second radiator 212) satisfy: H4≤L2 25%. In one embodiment, H4≤L2 15%. In one embodiment, H4 is less than or equal to 5mm.

[0291] In one embodiment, the fifth tuning circuit 255 and the sixth tuning circuit 256 are in the first circuit state, the first radiator 211 is used to generate the first resonance and the third resonance, and a resonance point frequency of the third resonance is lower than a resonance point frequency of the first resonance.

[0292] In one embodiment, the second tuning circuit 252 and the fourth tuning circuit 254 are in the first circuit state, the second radiator 212 is used to generate the second resonance and the fourth resonance, and a resonance point frequency of the fourth resonance is lower than a resonance point frequency of the second resonance.

[0293] It should be understood that, according to the technical scheme provided by the embodiments of the present application, the edge feed can be used to stimulate the line CM mode and the line DM mode of the radiator at the same time. In the first circuit state, the first resonance is mainly generated by the line DM mode of the first radiator 211, the third resonance is mainly generated by the line CM mode of the first radiator 211, the second resonance is mainly generated by the line DM mode of the second radiator 212, and the fourth resonance is mainly generated by the line CM mode of the second radiator 212.

[0294] In one embodiment, the frequency difference between the resonance point of the first resonance and the resonance point of the third resonance is greater than or equal to 100 MHz and less than or equal to 300 MHz. In one embodiment, the frequency difference between the resonance point of the second resonance and the resonance point of the fourth resonance is greater than or equal to 100 MHz and less than or equal to 300 MHz.

[0295] It should be understood that the first radiator 211 resonates by the line CM mode and the line DM mode. When the frequency difference between the resonance point of the first resonance (the second resonance) and the resonance point of the third resonance (the fourth resonance) is greater than or equal to 100 MHz and less than or equal to 300 MHz, the proportion of the line DM mode in the first resonance (the second resonance) can be increased, so that the antenna 200 mainly radiates by the line DM mode in the resonance frequency band of the first resonance (the second resonance), to improve the radiation efficiency and system efficiency of the antenna 200 in the first frequency band (the second frequency band). When the frequency difference between the resonance point of the first resonance (the second resonance) and the resonance point of the third resonance (the fourth resonance) is greater than 300 MHz, the proportion of other working modes (for example, the line CM mode) in the first resonance (the second resonance) is increased, which will cause the radiation efficiency and system efficiency of the antenna 200 in the first frequency band (the second frequency band) to decrease.

[0296] Figure 27 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0297] It should be understood that satellite communication and cellular communication (or close-range communication) are not performed at the same time. In the above embodiment, it is shown that when the electronic device 10 performs satellite communication, the first resonance and the second resonance can be generated by the first radiator and the second radiator, so that the antenna can have good radiation characteristics in the first frequency band and the second frequency band. When the electronic device 10 does not perform satellite communication, the first radiator 211 and the second radiator 212 can be reused as radiators of the antenna for cellular communication (or close-range communication).

[0298] In the structure of the same bezel 11, in the above embodiment, the conductor part of the bezel between the first position 201 and the second position 202 (or the first position 201 and the fourth position 204) and the conductor part of the bezel between the second position 202 and the third position 203 are used as radiators. However, in the antenna 200 shown in Figure 27 the conductor part of the bezel between the gap and the ground point is used as a radiator.

[0299] The structure of the same frame 11 can be understood as that the frame 11 can be provided with a gap at the first position 201, the second position 202, the third position 203 and the fourth position 204, and coupled with the floor 300 at the first grounding point 241, the second grounding point 242 and the third grounding point 243. The structure of the same frame 11 can also be understood as that the length proportions of the frame between the first position 201, the second position 202, the third position 203 and the fourth position 204 are the same.

[0300] As shown in FIG. 3, the conductor part of the frame between the first position 201 and the second position 202 can be used as a radiator 301. The radiator 301 forms a first antenna with a feed circuit 311. In an embodiment, the feed circuit 311 can be the first feed circuit 221 in the above-mentioned embodiment. In an embodiment, the third tuning circuit 253 in the above-mentioned embodiment can be used to adjust the resonance point frequency of the resonance generated by the first antenna. Figure 27

[0301] In an embodiment, the conductor part of the frame between the second position 202 and the second grounding point 242 can be used as a radiator 302. The radiator 302 forms a second antenna with a feed circuit 312. In an embodiment, the feed circuit 312 can be the second feed circuit 222 in the above-mentioned embodiment. In an embodiment, the fourth tuning circuit 254 in the above-mentioned embodiment can be used to adjust the resonance point frequency of the resonance generated by the second antenna.

[0302]

[0303] In an embodiment, the conductor part of the frame between the third position 203 and the second grounding point 242 can be used as a radiator 303. The radiator 303 forms a third antenna with a feed circuit 313. In an embodiment, the second tuning circuit 252 in the above-mentioned embodiment can be used to adjust the resonance point frequency of the resonance generated by the third antenna.

[0304]

[0305] ​​​It should be understood that one end of the radiator 301, the radiator 302, the radiator 303, the radiator 304 and the radiator 305 described in the embodiments of the present application is a grounded end, and the other end is an open end. The first antenna, the second antenna, the third antenna, the fourth antenna and the fifth antenna can all work in a quarter wavelength mode.

[0306] In one embodiment, the operating frequency band of the first antenna can include 2.4 GHz of WiFi, and / or at least part of the frequency band in sub 6G, for example, n77 frequency band.

[0307] In one embodiment, the operating frequency band of the second antenna can include L1 frequency band in GPS, and / or at least part of the frequency band in sub 6G, for example, n79 frequency band.

[0308] In one embodiment, the operating frequency band of the third antenna can include at least part of the frequency band in middle band (MB) (1710 MHz-2170 MHz), and / or at least part of the frequency band in high band (HB) (2300 MHz-2690 MHz), for example, B1 (1920 MHz-1980 MHz), B3 (1710 MHz-1785 MHz) and B7 (2500 MHz-2570 MHz) in LTE.

[0309] In one embodiment, the operating frequency band of the fourth antenna can include at least part of the frequency band in middle band, and / or at least part of the frequency band in high band, for example, B1 (1920 MHz-1980 MHz), B3 (1710 MHz-1785 MHz) and B7 (2500 MHz-2570 MHz) in LTE.

[0310] In one embodiment, the operating frequency band of the fifth antenna can include at least part of the frequency band in middle band, and / or at least part of the frequency band in high band, for example, B1 (1920 MHz-1980 MHz), B3 (1710 MHz-1785 MHz) and B7 (2500 MHz-2570 MHz) in LTE.

[0311] It should be understood that in the above embodiments, only the allocation of the operating frequency bands of part of the antennas is shown, and in actual production or design, the operating frequency bands of the above antennas can also be adjusted. In one embodiment, the operating frequency band of the third antenna can include at least part of the frequency band in low band (LB), for example, B5, B8 and B28 in LTE.

[0312] In one embodiment, the grounding at the first grounding point 241 can be realized by the first grounding member 321 (for example, a metal spring piece), as shown in FIG. 3A. Figure 28The first ground 331 is connected to the frame with a width greater than or equal to 2mm and less than or equal to 8mm.

[0313] It should be understood that the ground structure at the first ground point 241 can make the first antenna and the fourth antenna have better isolation. As the width of the first ground 331 connected to the frame increases, the isolation between the first antenna and the fourth antenna improves.

[0314] In an embodiment, the frame 11 is directly electrically connected or electrically connected through a 0-ohm resistor at the first connection point 2111 to the floor 300, which can further improve the isolation between the first antenna and the fourth antenna.

[0315] In an embodiment, the ground at the second ground point 242 can be achieved by a second ground 322 (e.g., a metal spring). The second ground 332 is connected to the frame with a width greater than or equal to 2mm and less than or equal to 12mm.

[0316] It should be understood that the ground structure at the second ground point 242 can make the second antenna and the third antenna have better isolation. As the width of the second ground 332 connected to the frame increases, the isolation between the second antenna and the third antenna improves.

[0317] In an embodiment, the ground at the third ground point 243 can be achieved by a third ground 323 (e.g., a metal spring). The third ground 333 is connected to the frame with a width greater than or equal to 1mm and less than or equal to 20mm.

[0318] It should be understood that the ground structure at the third ground point 243 can make the fourth antenna and the fifth antenna have better isolation. As the width of the third ground 333 connected to the frame increases, the isolation between the fourth antenna and the fifth antenna improves.

[0319] In an embodiment, the length R1 of the radiator 301 (the length of the frame between the second position 202 and the first ground point 241) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1 35%≤R2≤L1 60%.

[0320] In an embodiment, the length R2 of the radiator 302 (the length of the frame between the second position 202 and the second ground point 242) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1 35%≤R2≤L1 60%.

[0321] In one embodiment, the length R3 of the radiator 303 (the length of the frame between the third position 203 and the second ground point 242) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1 30%≤R3≤L1 55%。

[0322] In one embodiment, the length R4 of the radiator 304 (the length of the frame between the first position 201 and the third ground point 243) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1 40%≤R4≤L1 65%。

[0323] In one embodiment, the length R5 of the radiator 305 (the length of the frame between the fourth position 204 and the third ground point 243) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1 40%≤R4≤L1 65%。

[0324] The above merely provides a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An electronic device, characterized in that, include: The border includes a first position, a second position, and a third position arranged sequentially, wherein a first gap, a second gap, and a third gap are respectively formed at the first position, the second position, and the third position. The border also includes a first side and a second side that intersect at an angle, the length of the first side is greater than the length of the second side, the first position and the second position are located on the second side, and the third position is located on the first side; Antenna, including: A first radiator and a second radiator, wherein the first radiator is the conductive portion of the frame between the first position and the second position, and the second radiator is the conductive portion of the frame between the second position and the third position. A first feed circuit and a second feed circuit are provided. The first radiator includes a first feed point, and the second radiator includes a second feed point. The first feed point is located on the second side. The first feed circuit is coupled to the first feed point, and the second feed circuit is coupled to the second feed point. A first tuning circuit and a second tuning circuit, wherein the first radiator includes a first connection point, the second radiator includes a second connection point, the first tuning circuit is coupled to the first connection point, and the second tuning circuit is coupled to the second connection point; The length of the first part is greater than or equal to one-half the length of the second part and less than or equal to three-half the length of the second part. The first part is the portion of the second radiator on the first side, and the second part is the portion of the second radiator on the second side.

2. The electronic device according to claim 1, characterized in that, The first tuning circuit is in a first circuit state, and the first radiator is used to generate a first resonance, the resonant frequency band of the first resonance includes a first frequency band. The second tuning circuit is in the first circuit state, and the second radiator is used to generate a second resonance, the resonant frequency band of the second resonance including the second frequency band.

3. The electronic device according to claim 2, characterized in that, The first frequency band includes the transmitting frequency band in satellite communication, and the second frequency band includes the receiving frequency band in satellite communication.

4. The electronic device according to claim 2 or 3, characterized in that, When the electronic device is in free space or in a held state, the maximum radiation direction of the radiation pattern generated by the antenna at the first resonance point and the second resonance point is located in the same region.

5. The electronic device according to any one of claims 1 to 4, characterized in that, The second power supply point is located on the second side.

6. The electronic device according to claim 2, characterized in that, At the resonance point of the first resonance, the currents on the first radiator are in the same direction; At the resonant point of the second resonance, the currents on the second radiator are in the same direction.

7. The electronic device according to any one of claims 1 to 6, characterized in that, The electronic device also includes a floor; The frame also includes a first grounding point and a second grounding point, the frame being coupled to the floor at the first grounding point and the second grounding point, the first grounding point being located between the first power supply point and the first connection point, and the second grounding point being located between the second power supply point and the second connection point.

8. The electronic device according to claim 7, characterized in that, The antenna also includes a third tuning circuit and a fourth tuning circuit; The first radiator includes a third connection point, the second radiator includes a fourth connection point, the first ground point is located between the first connection point and the third connection point, the second ground point is located between the second connection point and the fourth connection point, the third tuning circuit is coupled to the third connection point, and the fourth tuning circuit is coupled to the fourth connection point.

9. The electronic device according to claim 8, characterized in that, The first tuning circuit and the third tuning circuit are in a first circuit state, and the first radiator is used to generate a first resonance and a third resonance, wherein the resonant frequency of the third resonance is lower than the resonant frequency of the first resonance. The second tuning circuit and the fourth tuning circuit are in the first circuit state, and the second radiator is used to generate the second resonance and the fourth resonance, wherein the resonant frequency of the fourth resonance is lower than the resonant frequency of the second resonance.

10. The electronic device according to claim 9, characterized in that, The frequency difference between the resonant point of the first resonance and the resonant point of the third resonance is greater than or equal to 100MHz and less than or equal to 300MHz, and / or, The frequency difference between the resonant point of the second resonance and the resonant point of the fourth resonance is greater than or equal to 100MHz and less than or equal to 300MHz.

11. The electronic device according to claim 9, characterized in that, The frequency difference between the resonant point of the third resonance and the resonant point of the second resonance is greater than or equal to 200MHz and less than or equal to 500MHz.

12. The electronic device according to any one of claims 7 to 11, characterized in that, The electronic device further includes a first grounding element, and the frame is coupled to the floor at the first grounding point through the first grounding element; The width of the connection between the first grounding element and the frame is greater than or equal to 2mm and less than or equal to 8mm.

13. The electronic device according to any one of claims 7 to 12, characterized in that, The electronic device further includes a second grounding element, and the frame is coupled to the floor at the second grounding point via the second grounding element; The width of the connection between the second grounding component and the frame is greater than or equal to 2 mm and less than or equal to 12 mm.

14. An electronic device, characterized in that, include: The border includes a first position, a second position, a third position, and a fourth position, wherein a first gap, a second gap, a third gap, and a fourth gap are respectively formed at the first position, the second position, the third position, and the fourth position. The border also includes a first side, a second side, and a third side. The first side and the third side intersect the second side at an angle. The length of the first side is greater than the length of the second side, and the length of the third side is greater than the length of the second side. The first position and the second position are located on the second side, the third position is located on the first side, and the fourth position is located on the third side. Antenna, including: A first radiator and a second radiator, wherein the first radiator is the conductive portion of the frame between the first position and the fourth position, and the second radiator is the conductive portion of the frame between the second position and the third position. A first feed circuit and a second feed circuit are provided. The first radiator includes a first feed point, and the second radiator includes a second feed point. The first feed point and the second feed point are located on the second side. The first feed circuit is coupled to the first feed point, and the second feed circuit is coupled to the second feed point. A first tuning circuit and a second tuning circuit, wherein the first radiator includes a first connection point, the second radiator includes a second connection point, the first tuning circuit is coupled to the first connection point, and the second tuning circuit is coupled to the second connection point; The length of the first part is greater than or equal to one-half the length of the second part, and less than or equal to three-half the length of the second part; the first part is the portion of the first radiator on the third side; the second part is the portion of the first radiator on the second side; and / or... The length of the third part is greater than or equal to one-half the length of the fourth part, and less than or equal to three-half the length of the fourth part. The third part is the portion of the second radiator on the first side, and the fourth part is the portion of the second radiator on the second side.

15. The electronic device according to claim 14, characterized in that, The first tuning circuit is in a first circuit state, and the first radiator is used to generate a first resonance, the resonant frequency band of the first resonance includes a first frequency band. The second tuning circuit is in the first circuit state, and the second radiator is used to generate a second resonance, the resonant frequency band of the second resonance including the second frequency band.

16. The electronic device according to claim 15, characterized in that, The first frequency band includes the transmitting frequency band in satellite communication, and the second frequency band includes the receiving frequency band in satellite communication.

17. The electronic device according to claim 15 or 16, characterized in that, When the electronic device is in free space or in a held state, the maximum radiation direction of the radiation pattern generated by the antenna at the first resonance point and the second resonance point is located in the same region.

18. The electronic device according to claim 15, characterized in that, At the resonance point of the first resonance, the currents on the first radiator are in the same direction; At the resonant point of the second resonance, the currents on the second radiator are in the same direction.

19. The electronic device according to any one of claims 13 to 18, characterized in that, The electronic device also includes a floor; The frame also includes a first grounding point and a second grounding point, the frame being coupled to the floor at the first grounding point and the second grounding point, the first grounding point being located between the first power supply point and the first connection point, and the second grounding point being located between the second power supply point and the second connection point.

20. The electronic device according to claim 19, characterized in that, The antenna also includes a third tuning circuit and a fourth tuning circuit; The first radiator includes a third connection point, the second radiator includes a fourth connection point, the first ground point is located between the first connection point and the third connection point, the second ground point is located between the second connection point and the fourth connection point, the third tuning circuit is coupled to the third connection point, and the fourth tuning circuit is coupled to the fourth connection point.

21. The electronic device according to claim 20, characterized in that, The first tuning circuit and the third tuning circuit are in a first circuit state, and the first radiator is used to generate a first resonance and a third resonance, wherein the resonant frequency of the third resonance is lower than the resonant frequency of the first resonance. The second tuning circuit and the fourth tuning circuit are in the first circuit state, and the second radiator is used to generate the second resonance and the fourth resonance, wherein the resonant frequency of the fourth resonance is lower than the resonant frequency of the second resonance.

22. The electronic device according to claim 21, characterized in that, The frequency difference between the resonant point of the first resonance and the resonant point of the third resonance is greater than or equal to 100MHz and less than or equal to 300MHz, and / or, The frequency difference between the resonant point of the second resonance and the resonant point of the fourth resonance is greater than or equal to 100MHz and less than or equal to 300MHz.

23. The electronic device according to any one of claims 19 to 22, characterized in that, The electronic device further includes a first grounding element, and the frame is coupled to the floor at the first grounding point through the first grounding element; The width of the connection between the first grounding element and the frame is greater than or equal to 2 mm and less than or equal to 12 mm.

24. The electronic device according to any one of claims 19 to 23, characterized in that, The electronic device further includes a second grounding element, and the frame is coupled to the floor at the second grounding point via the second grounding element; The width of the connection between the second grounding component and the frame is greater than or equal to 1 mm and less than or equal to 20 mm.

Images