An electronic device

Abstract

The application provides an electronic device comprising an antenna. The antenna uses a conductive part of a frame of the electronic device as a radiator, which is coupled to a ground plane at a first connection point and a second connection point through a first ground control circuit and a second ground control circuit. By providing the first ground control circuit and the second ground control circuit, the state in which the radiator is coupled to the ground plane at the first connection point is different from the state in which the radiator is coupled to the ground plane at the second connection point, so that the radiator is used to generate a first resonance and a second resonance.

Description

[0001] This application claims priority to the Chinese Patent Application No. 202310961462.9, filed on July 31, 2023, entitled “Electronic device”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of wireless communication, in particular to an electronic device. BACKGROUND

[0003] With the continuous evolution of mobile communication technology, satellite communication technology has gradually become a major feature function in mobile terminal devices. Unlike traditional cellular antennas, satellite antennas need to consider the radiation patterns produced by the satellite antenna in the transmit frequency band and the receive frequency band when designing. When the maximum radiation direction of the radiation pattern produced by the transmit frequency band and the maximum radiation direction of the radiation pattern produced by the receive frequency band differ greatly, the transmit frequency band will be aligned with the satellite (the maximum radiation direction points to the satellite), while the receive frequency band cannot be aligned with the satellite, resulting in a significant decrease in the accuracy of the antenna in transmitting electrical signals.

[0004] However, for antennas working at different frequency bands, the radiation patterns produced are mostly inconsistent. Therefore, how to maintain the consistency of the radiation patterns produced by the satellite antenna at different frequency bands is a major difficulty in design. SUMMARY

[0005] The present application provides an electronic device comprising an antenna. The antenna uses part of the conductive frame of the electronic device as a radiator, so that the maximum radiation direction of the radiation pattern produced by the antenna in the first frequency band and the maximum radiation direction of the radiation pattern produced in the second frequency band differ less, so that the electronic device has good satellite communication performance.

[0006] In a first aspect, an electronic device is provided, comprising: a floor; a conductive frame comprising a first position and a second position, the frame being provided with a first gap and a second gap at the first position and the second position respectively; an antenna, the antenna comprising: a first radiator and a first feed circuit, the first radiator being a conductive part of the frame between the first position and the second position, the first radiator comprising a first feed point, the first feed circuit being coupled with the first feed point for feeding an electrical signal of a first frequency band and a second frequency band; a first ground control circuit and a second ground control circuit, the first radiator comprising a first connection point and a second connection point, the first connection point being between the first position and the second connection point, the first feed point being between the first position and the first connection point, a first end of the first ground control circuit being coupled with the first connection point, a second end of the first ground control circuit being coupled with the floor, a first end of the second ground control circuit being coupled with the second connection point, a second end of the second ground control circuit being coupled with the floor; wherein the first radiator is configured to generate a first resonance corresponding to the first frequency band, the first radiator, the first ground control circuit and the second ground control circuit are configured to generate a second resonance corresponding to the second frequency band, a resonance point frequency of the second resonance being higher than a resonance point frequency of the first resonance.

[0007] According to the technical scheme provided by the embodiments of the present application, the first ground control circuit and the second ground control circuit are in different working states, so that the antenna generates the first resonance and the second resonance through different parts of the first radiator. At the resonance point of the first resonance, the first ground control circuit and the second ground control circuit are in the first circuit state, and the antenna can generate the first resonance through the whole first radiator. At the resonance point of the second resonance, the first ground control circuit and the second ground control circuit are in the second circuit state, and the antenna can generate the second resonance through the first radiator between the first position and the first connection point and between the second position and the second connection point. The antenna can generate the first resonance and the second resonance through the first radiator, so that the electronic device works in the transmitting frequency band and the receiving frequency band in satellite communication. Moreover, the first resonance and the second resonance are generated by multiplexing the first radiator, and the size of the antenna is relatively small.

[0008] In combination with the first aspect, in some implementations of the first aspect, at the resonance point of the first resonance, the currents on the first radiator are in the same direction; at the resonance point of the second resonance, the currents on the first radiator between the first end of the first radiator and the first connection point and the currents on the first radiator between the second end of the first radiator and the second connection point are in the same direction, the first end of the first radiator being one end of the first radiator at the first position, and the second end of the first radiator being one end of the first radiator at the second position.

[0009] According to the technical scheme provided in the embodiments of the present application, the first resonance and the second resonance are both generated by the line DM mode described in the above embodiments. Since the current generated by the line DM mode is mainly generated by the first radiator, multiple current modes will not be generated on the ground, and the maximum radiation direction of the directional diagram generated by the antenna can be easily determined.

[0010] With reference to the first aspect, in some implementations of the first aspect, at the resonance point of the first resonance, the central region of the first radiator can include a current large point; at the resonance point of the second resonance, the first current region and the second current region include current large points, the first current region includes the first connection point, and the second current region includes the second connection point.

[0011] With reference to the first aspect, in some implementations of the first aspect, the first ground control circuit or the second ground control circuit includes at least one of the following circuits: a filter circuit, the filter circuit being in an open state in the first frequency band and being in a conductive state in the second frequency band; a switch circuit, the switch circuit including a first switch, the switch being in an open state in the first frequency band and being in a conductive state in the second frequency band.

[0012] With reference to the first aspect, in some implementations of the first aspect, at the resonance point of the first resonance, the first ground control circuit and the second ground control circuit are in a first circuit state; at the resonance point of the second resonance, the first ground control circuit and the second ground control circuit are in a second circuit state, the first circuit state and the second circuit state being different.

[0013] With reference to the first aspect, in some implementations of the first aspect, the distance between the first feeding point and the first position is less than or equal to 5 mm.

[0014] With reference to the first aspect, in some implementations of the first aspect, the ratio of the distance between the first connection point and the second connection point to the length of the first radiator is less than or equal to two-thirds.

[0015] With reference to the first aspect, in some implementations of the first aspect, the ratio of the distance between the first connection point and the second connection point to the length of the first radiator is greater than or equal to one-third and less than or equal to five-thirds.

[0016] With reference to the first aspect, in some implementations of the first aspect, the ratio of the resonance point frequency of the second resonance to the resonance point frequency of the first resonance is greater than 1 and less than or equal to 3.

[0017] With reference to the first aspect, in some implementations of the first aspect, a ratio between a resonant point frequency of the second resonance and a resonant point frequency of the first resonance is greater than or equal to 1.5 and less than or equal to 2.5.

[0018] With reference to the first aspect, in some implementations of the first aspect, a ratio between a distance between the first connection point and a center of the first radiator and a distance between the second connection point and the center of the first radiator is greater than or equal to 0.9 and less than or equal to 1.1.

[0019] 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 being configured to feed a signal of the first frequency band, and the second radio frequency channel being configured to feed a signal of the second frequency band.

[0020] With reference to the first aspect, in some implementations of the first aspect, the first radiator further includes a third connection point, the third connection point being located between the second position and the second connection point; and the antenna further includes a tuning circuit, a first end of the tuning circuit being coupled to the third connection point, and a second end of the tuning circuit being coupled to the ground plane.

[0021] With reference to the first aspect, in some implementations of the first aspect, the antenna further includes a second feeding circuit; and the first radiator includes a second feeding point, the second feeding point being located between the second position and the second connection point, the second feeding circuit being coupled to the second feeding point and configured to feed electrical signals of the first frequency band and the second frequency band.

[0022] With reference to the first aspect, in some implementations of the first aspect, the first radiator further includes a third connection point and a fourth connection point, the third connection point being located between the first position and the first connection point, and the fourth connection point being located between the second position and the second connection point; and the antenna further includes a third ground control circuit and a fourth ground control circuit, a first end of the third ground control circuit being coupled to the third connection point, a second end of the third ground control circuit being coupled to the ground plane, a first end of the fourth ground control circuit being coupled to the fourth connection point, and a second end of the fourth ground control circuit being coupled to the ground plane; wherein the third ground control circuit includes a second switch, the second switch being configured to switch a coupling connection state between the third ground control circuit and the third connection point; and the fourth ground control circuit includes a third switch, the third switch being configured to switch a coupling connection state between the fourth ground control circuit and the fourth connection point.

[0023] With reference to the first aspect, in some implementations of the first aspect, based on the first feeding point feeding the electric signal of the first frequency band and the second frequency band, the second switch is in an open state, and the third switch is in a conductive state; based on the second feeding point feeding the electric signal of the first frequency band and the second frequency band, the second switch is in a conductive state, and the third switch is in an open state.

[0024] With reference to the first aspect, in some implementations of the first aspect, the second feeding circuit includes a third radio frequency channel and a fourth radio frequency channel, the third radio frequency channel is configured to feed the signal of the first frequency band, and the fourth radio frequency channel is configured to feed the signal of the second frequency band.

[0025] With reference to the first aspect, in some implementations of the first aspect, a ratio of a distance between the first feeding point and a center of the first radiator to a distance between the second feeding point and the center of the first radiator is greater than or equal to 0.9 and less than or equal to 1.1.

[0026] With reference to the first aspect, in some implementations of the first aspect, the antenna is a satellite antenna, the first frequency band is a transmitting frequency band of the satellite antenna, and the second frequency band is a receiving frequency band of the satellite antenna.

[0027] With reference to the first aspect, in some implementations of the first aspect, the bezel further includes a grounding point, the grounding point is located between the first position and the second position; the electronic device further includes a middle frame, the middle frame includes the bezel and a middle plate, and the middle plate is electrically connected to the ground plate.

[0028] The bezel and the middle plate are connected through a first connecting rib structure, a connection position of the first connecting rib structure and the bezel is located between the first position and the second position, and a connection position of the first connecting rib structure and the bezel is located between the first connecting point and the second connecting point of the first radiator.

[0029] In a second aspect, an electronic device is provided, comprising: a floor; a frame comprising a first position, a second position, a third position and a fourth position arranged in sequence, the frame being coupled with the floor at the first position and the fourth position, the frame being provided with a first gap and a second gap at the second position and the third position respectively; an antenna comprising: a first radiator, a second radiator and a third radiator, the first radiator being a conductive part of the frame between the first position and the second position, the second radiator being a conductive part of the frame between the second position and the third position, the third radiator being a conductive part of the frame between the third position and the fourth position; a first feed circuit, a second feed circuit, a third feed circuit and a fourth feed circuit, the first radiator comprising a first feed point, the second radiator comprising a second feed point and a third feed point, the third radiator comprising a fourth feed point, the first feed circuit being coupled with the first feed point, the second feed circuit being coupled with the second feed point, the third feed circuit being coupled with the third feed point, the fourth feed circuit being coupled with the fourth feed point, the first feed circuit and the fourth feed circuit being configured to feed an electrical signal of a first frequency band, the second feed circuit and the third feed circuit being configured to feed an electrical signal of a second frequency band; a first ground control circuit and a second ground control circuit, the second radiator comprising a first connection point and a second connection point, the first connection point being located between the second position and the second connection point, the second feed point being located between the first position and the first connection point, the third feed point being located between the third position and the second connection point, a first end of the first ground control circuit being coupled with the first connection point, a second end of the first ground control circuit being coupled with the floor, a first end of the second ground control circuit being coupled with the second connection point, a second end of the second ground control circuit being coupled with the floor; wherein the first radiator and the third radiator are configured to generate a first resonance corresponding to the first frequency band, the second radiator, the first ground control circuit and the second ground control circuit are configured to generate a second resonance corresponding to the second frequency band, a resonance point frequency of the second resonance being higher than a resonance point frequency of the first resonance.

[0030] With reference to the second aspect, in some implementations of the second aspect, the electronic device further comprises a middle frame comprising the frame and a middle plate, wherein the middle plate is electrically connected with the floor; wherein the frame is connected with the middle plate through a first connecting rib structure, a connection of the first connecting rib structure with the frame being located between the first position and the second position; and a connection of the first connecting rib structure with the frame being located between the first connection point and the second connection point of the first radiator. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0032] Figure 2 is a schematic diagram of a structure of a common mode of an antenna and a distribution of corresponding current and electric field provided by the present application.

[0033] Figure 3 is a schematic diagram of a structure of a differential mode of an antenna and a distribution of corresponding current and electric field provided by the present application.

[0034] Figure 4 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0035] Figure 5 is Figure 4 is a simulation result of an S parameter of an antenna 100 in the electronic device 10 shown in FIG. 8.

[0036] Figure 6 is Figure 4 is a simulation result of a system efficiency and a radiation efficiency of the antenna 100 in the electronic device 10 shown in FIG. 8.

[0037] Figure 7 is a radiation pattern of an antenna generated by a line CM mode provided by the present application.

[0038] Figure 8 is a radiation pattern of an antenna generated by a line DM mode provided by the present application.

[0039] Figure 9 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0040] Figure 10 is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0041] Figure 11 is Figure 9 is a schematic diagram of a current distribution of the antenna 200 shown in FIG. 10 in a case where the first connection point and the second connection point are coupled to a floor.

[0042] Figure 12 is Figure 9 is a radiation pattern of the antenna 200 shown in FIG. 10 in a case where the first connection point and the second connection point are directly coupled to a floor.

[0043] Figure 13 is Figure 9 is a schematic diagram of a current distribution of the antenna 200 shown in FIG. 10 in a case where the first connection point and the second connection point are coupled to a floor through an inductor.

[0044] Figure 14 is Figure 9The radiation pattern of the first connection point and the second connection point branch of the antenna 200 shown is coupled to the ground through an inductor.

[0045] Figure 15 yes Figure 9 The diagram shows the current distribution of the antenna 200 when it is coupled to the ground through capacitors at the first connection point and the second connection point.

[0046] Figure 16 yes Figure 9 The radiation pattern of the first connection point and the second connection point branch of the antenna 200 shown is coupled to the ground through a capacitor.

[0047] Figure 17 This is a schematic diagram of another electronic device 10 provided in the embodiments of this application.

[0048] Figure 18 yes Figure 17 The simulation results of the S-parameters of the antenna shown are presented.

[0049] Figure 19 yes Figure 17 The diagram shows the current distribution of the antenna at the first resonance point (2GHz).

[0050] Figure 20 yes Figure 17 The diagram shows the current distribution of the antenna at the second resonance point (3.6 GHz).

[0051] Figure 21 yes Figure 17 The antenna shown has a radiation pattern at the resonant point (2 GHz) of the first resonance.

[0052] Figure 22 yes Figure 17 The antenna pattern shown is located at the resonant point (3.6 GHz) of the second resonance.

[0053] Figure 18 This is a schematic diagram of another electronic device 10 provided in the embodiments of this application.

[0054] Figure 19 This is a schematic diagram of another electronic device 10 provided in the embodiments of this application.

[0055] Figure 20 yes Figure 21 The antenna shown is a radiation pattern at the first resonance point (2GHz) when an electrical signal is fed into it from the first feed point.

[0056] Figure 21 yes Figure 22 The radiation pattern of the antenna shown is at the second resonance point (3.6 GHz) when an electrical signal is fed into the first feed point of the antenna.

[0057] Figure 22 is Figure 23 The antenna shown in FIG. 1 1 has a pattern at the resonance point of the first resonance (2 GHz) when the second feed point is fed with an electrical signal.

[0058] Figure 23 is Figure 17 The antenna shown in FIG. 1 1 has a pattern at the resonance point of the second resonance (3.6 GHz) when the second feed point is fed with an electrical signal.

[0059] Figure 23 is a schematic diagram of still another electronic device 10 provided by an embodiment of the present application.

[0060] Figure 24 is a schematic diagram of still another electronic device 10 provided by an embodiment of the present application.

[0061] Figure 24 is Figure 25 to Figure 28 The antenna shown in FIG. 1 1 has a pattern at the resonance point of the first resonance (2 GHz) when the second feed point is fed with an electrical signal.

[0062] Figure 24 is Figure 25 The antenna shown in FIG. 1 1 has a pattern at the resonance point of the second resonance (3.6 GHz) when the second feed point is fed with an electrical signal.

[0063] Figure 24 is Figure 26 The antenna shown in FIG. 1 1 has a pattern at the resonance point of the first resonance (2 GHz) when the second feed point is fed with an electrical signal.

[0064] Figure 24 is Figure 27 The antenna shown in FIG. 1 1 has a pattern at the resonance point of the second resonance (3.6 GHz) when the second feed point is fed with an electrical signal.

[0065] Figure 24 is Figure 28 The antenna shown in FIG. 1 1 has a pattern at the resonance point of the first resonance (2 GHz) when the second feed point is fed with an electrical signal.

[0066] Figure 24 is Figure 25 to Figure 28 The antenna shown in FIG. 1 1 has a pattern at the resonance point of the second resonance (3.6 GHz) when the second feed point is fed with an electrical signal.

[0067] Figure 25 is a schematic diagram of still another electronic device 10 provided by an embodiment of the present application.

[0068] Figure 26 is a schematic diagram of still another electronic device 10 provided by an embodiment of the present application.

[0069] Figure 27 is a schematic diagram of still another electronic device 10 provided by an embodiment of the present application.

[0070] Figure 28 is a schematic diagram of yet another electronic device 10 provided by an embodiment of the present application. DETAILED DESCRIPTION

[0071] The technical solutions in the present application will be described below with reference to the drawings.

[0072] It should be understood that the term "and / or" used herein is only to describe the same field of associated objects, which means that there can be three relationships, for example, A and / or B can represent the following three cases: 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.

[0073] "Within the range" used in the present application, by default, includes the two end values of the range, unless it is indicated separately that the end value is not included, for example, within the range of 1 to 5, including the two values of 1 and 5.

[0074] 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 means that the components are in physical contact and electrically conductive; it can also be understood as a form of connection between different components in the circuit structure through the entity circuit of the copper foil or wire of the printed circuit board (PCB) 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 the two conductive parts to form an equivalent capacitor to achieve signal transmission.

[0075] Element / device: includes at least one of lumped element / device and distributed element / device.

[0076] 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 the frequency.

[0077] 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 the change of the signal when the signal passes through the element. At this time, the element as a whole cannot be regarded as a single body with fixed characteristics, and should be referred to as a distributed element.

[0078] Capacitance: can be understood as lumped capacitance and / or distributed capacitance. Lumped capacitance refers to a component that presents capacitance, such as a capacitor element; distributed capacitance (or distributed capacitance) refers to an equivalent capacitor formed by spacing a certain gap between two conductive parts.

[0079] Inductance: can be understood as lumped inductance and / or distributed inductance. Lumped inductance refers to components that exhibit inductance, such as inductive elements; distributed inductance (or distributed inductance) refers to the equivalent inductance formed by a certain length of conductive member.

[0080] Radiating body: is a device in an antenna for receiving / sending electromagnetic wave radiation. In some cases, the term "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 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.

[0081] 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 radiator of 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 medium 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). 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 (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). In an embodiment, the patch shape radiator can be implemented by a planar conductor (e.g., a conductive sheet or a conductive coating, etc.). In an embodiment, the patch shape radiator can include a conductive sheet, such as a copper sheet, 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.

[0082] The radiators can also include slots or gaps formed on the conductors, for example, forming closed or semi-closed slots or gaps on the grounded conductor plane. In one embodiment, the radiators with slots or gaps can be referred to as slot antennas or gap antennas. In one embodiment, the slots or gaps of the slot / gap antennas have 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 length of the gap is about half a wavelength (e.g., dielectric wavelength). In some embodiments, the length of the gap 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 or gap antennas can be implemented by a conductive frame that is grounded at both ends, which can also be referred to as a frame antenna. In this embodiment, the slot or gap antenna can be considered to include a linear radiator that is spaced apart from the ground plane and grounded at both ends, thereby forming a closed or semi-closed slot or gap. In one embodiment, the radiators of the slot or gap antennas can be implemented by a bracket conductor that is grounded at both ends, which can also be referred to as a bracket antenna.

[0083] 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 circuit. In some cases, the term "feed circuit" is understood in a narrow sense as 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.

[0084] 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.

[0085] 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.

[0086] 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 port (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.

[0087] 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.

[0088] 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 part of the antenna.

[0089] 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.

[0090] 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 point or a 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 circuit) on the antenna radiator for coupling the feeding structure or the feeding circuit, and for another example, the grounding end / grounding point can be a connection / coupling area on the antenna radiator for coupling the grounding structure or the grounding circuit.

[0091] 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).

[0092] 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 (for example, 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 (for example, 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.

[0093] 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 (for example, capacitors, inductors, etc.) through the open end can not change the current distribution characteristics of the current small point / large point of electric field.

[0094] 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 with electronic devices (for example, 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.

[0095] 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.

[0096] 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.

[0097] 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 a ring shape (for example, the current paths are also meandering or ring-shaped), it can be understood that, for example, the main currents excited on the conductors on two sides of a ring-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 embodiments of the present application. In an embodiment, the co-directional currents on one conductor can mean that there is no reversal point of the current 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 current 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.

[0098] 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 a ring shape (for example, the gaps between the ground and the conductors are also meandering or ring-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 ring-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 field 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 field 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.

[0099] Resonance / resonance frequency: resonance frequency can refer to the frequency at which the imaginary part of the input impedance of an antenna is zero. Resonance frequency can have a frequency range, i.e. a range of frequencies at which resonance occurs. The frequency at which resonance is strongest is the center frequency point. The return loss characteristic at the center frequency can be less than -20dB. It should be understood that, unless otherwise specified, the first resonance mentioned in the present application refers to the fundamental mode resonance produced by the antenna / radiator, or the resonance with the lowest frequency produced by the antenna / radiator.

[0100] Resonance frequency band / communication frequency band / operating frequency band: regardless of the type of antenna, it always works in a certain frequency range (bandwidth). For example, an antenna supporting B40 frequency band has an operating frequency band including frequencies in the range of 2300MHz-2400MHz, or in other words, the operating frequency band of the antenna includes B40 frequency band. The frequency range that meets the index requirements can be regarded as the operating frequency band of the antenna.

[0101] Electrical length: can refer to the ratio of physical length (i.e. mechanical length or geometric length) to the wavelength of the electromagnetic wave transmitted, and the electrical length can satisfy the following formula:

[0102]

[0103] Wherein, L is the physical length, and λ is the wavelength of the electromagnetic wave.

[0104] Wavelength: or operating wavelength, can be the wavelength corresponding to the center frequency of the resonance frequency or 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 1920MHz-1980MHz) is 1955MHz, the operating wavelength can be the wavelength calculated using the frequency of 1955MHz. Not limited to the center frequency, the "operating wavelength" can also refer to the wavelength corresponding to a non-center frequency of the resonance frequency or the operating frequency band.

[0105] It should be understood that the wavelength of the radiation signal in the air can be calculated as follows: (air wavelength, or vacuum wavelength) = speed of light / frequency, wherein the frequency is the frequency of the radiation signal (MHz), and the speed of light can be taken as 3x108m / s. The wavelength of the radiation signal in the medium can be calculated as follows: wherein ε 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 1920MHz to 1980MHz) is 1955MHz, the wavelength can be the medium wavelength calculated using the frequency of 1955MHz. 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 the convenience 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.

[0106] 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 0dB, the better the efficiency of the antenna is represented.

[0107] Antenna pattern: also known as radiation pattern. It refers to the relative field strength (normalized modulus) of the antenna radiation field at a certain distance from the antenna (far field) changes with direction. It is usually represented by two mutually perpendicular plane patterns in the maximum radiation direction of the antenna.

[0108] 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.

[0109] Polarization direction of the antenna: 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 and is perpendicular to the ground, which is called vertical polarization, or is horizontal to the ground, which is called horizontal polarization. The trajectory is an ellipse or a circle, and when observed along the propagation direction, it rotates in the right-hand or clockwise direction with time, which is called right-hand circular polarization (RHCP), or rotates in the left-hand or counterclockwise direction with time, which is called left-hand circular polarization (LHCP).

[0110] Antenna return loss: it can be understood as the ratio of the signal power reflected back to the antenna port to the antenna port transmission power. The smaller the reflected signal, the greater the signal radiated into space through the antenna, and the greater the radiation efficiency of the antenna. The greater the reflected signal, the smaller the signal radiated into space through the antenna, and the smaller the radiation efficiency of the antenna.

[0111] The antenna return loss can be represented by an S11 parameter, which belongs to S parameters. The S11 represents a reflection coefficient, and this parameter can represent the pros and cons of the antenna transmission efficiency. The 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, that is, the more the actual energy into the antenna, and the higher the system efficiency of the antenna; the larger the S11 parameter, the larger the antenna return loss, and the lower the system efficiency of the antenna.

[0112] It should be noted that the S11 value is generally-6dB as a standard in engineering, and when the S11 value of the antenna is less than-6dB, it can be considered that the antenna can work normally, or it can be considered that the transmission efficiency of the antenna is better.

[0113] Ground (GND): It 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 the ground can be used for the grounding of components in the electronic device. In an 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 an 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 an insulating layer such as glass fiber, polymer, etc. In an 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 an 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 arranged on the wiring layer.

[0114] Any ground layer, or ground plate, or ground metal layer described above is made of conductive material. In an 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.

[0115] Ground: refers to coupling with the above-mentioned ground / floor by any means. In an embodiment, the ground can be through the physical ground, such as the physical ground of a specific position on the frame (or referred to as the physical ground) through the part of the structure of the middle frame. In an embodiment, the ground can be through the device ground, such as the device ground (or referred to as the device ground) through the capacitors / inductors / resistors and the like in series or parallel.

[0116] The technical solutions of the embodiments of the present application will be described below with reference to the drawings.

[0117] As shown in Figure 29 The electronic device 10 can include a cover 13, a display module 15, a printed circuit board (PCB) 17, a middle frame 19 and a rear cover 21. It should be understood that in some embodiments, 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 and the like.

[0118] 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.

[0119] 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, and the like, and the embodiments of the present application do not limit this.

[0120] The middle frame 19 mainly plays a supporting role for the whole machine. Figure 29PCB 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, or the like. 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, and the like. 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, and the like. 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, an edge of the PCB 17 can be regarded as an edge of the grounding layer of the PCB 17. 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.

[0121] The electronic device 10 can also include a battery (not shown in the figures). The battery can be provided between the middle frame 19 and the back cover 21, or can be provided 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 provided between the main board and the sub-board. In some embodiments, the main board can be provided between the middle frame 19 and an upper edge of the battery, and the sub-board can be provided between the middle frame 19 and a lower edge of the battery.

[0122] 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 provided between the display module 15 and the back cover 21 and can extend circumferentially around the periphery of the electronic device 10. The frame 11 can have four side edges that surround the display module 15 and help secure the display module 15.

[0123] 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, which is suitable for a metal industrial design (ID). In an implementation, an outer surface of the frame 11 can be made of 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.

[0124] 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 ID. 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.

[0125] 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.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] 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.

[0130] 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.

[0131] The antenna of electronic device 10 can also be housed inside the casing, such as a bracket antenna, millimeter-wave antenna, etc. Figure 23 (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 side frame, 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 unit embedded inside the screen of the electronic device 10.

[0132] Figure 29 The electronic device 10 is shown only schematically, and the actual shape, size, and construction of these components are not subject to change. Figure 30 limited.

[0133] It should be understood that in the embodiments of the present application, the face where the display screen of the electronic device is located is considered as the front face, the face where the back cover is located is considered as the back face, and the face where the frame is located is considered as the side face.

[0134] It should be understood that in the embodiments of the present application, when the 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 the 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.

[0135] The present application provides an electronic device comprising an antenna. The antenna uses a conductive part of the frame of the electronic device as a radiator, which is coupled to a ground plane at a first connection point and a second connection point through a first ground control circuit and a second ground control circuit. By setting the first ground control circuit and the second ground control circuit, the coupling of the radiator to the ground plane at the first connection point can have different states, and the coupling of the radiator to the ground plane at the second connection point can have different states, so that the radiator is used to generate a first resonance corresponding to a first frequency band and a second resonance corresponding to a second frequency band. The maximum radiation direction of the directional diagram generated by the antenna in the first frequency band and the maximum radiation direction of the directional diagram generated in the second frequency band are less different, meeting the angular alignment requirements of the antenna in the first frequency band and the second frequency band, so that the electronic device has good satellite communication performance.

[0136] Firstly, by Figure 29 and Figure 31 to Figure 36 It is introduced that the present application will involve four antenna modes. Among them, Figure 29 is the structure and the corresponding current, electric field distribution diagram of the common mode of an antenna provided by the present application. Figure 31 is the structure and the corresponding current, electric field distribution diagram of the differential mode of another antenna provided by the present application. Figure 29 and Figure 32 The antenna radiator in and is open at both ends, and its common mode and differential mode can be called line common mode and line differential mode respectively.

[0137] 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.

[0138] 1. Line common mode (CM) mode

[0139] Figure 29(a) of FIG. 1 shows that the radiating body of the antenna 40 is open at both ends and is connected to a feed circuit (not shown in the figure) at a middle position 41. In one embodiment, the feed of the antenna 40 is in the form of a symmetrical feed. The feed circuit can be connected to the middle position 41 of the antenna 40 through a feed line 42. It should be understood that the symmetrical feed can be understood as a feed circuit connected to a radiating body at one end and grounded at the other end, wherein the connection point (feed point) of the feed circuit to the radiating body is located at the center of the radiating body, which can be, for example, the geometric center or the electrical length center (or a region within a certain range of the above-mentioned center).

[0140] The middle position 41 of the antenna 40 can be, for example, the geometric center of the antenna or the electrical length center of the radiating body, for example, the middle position 41 is covered by the connection of the feed line 42 to the antenna 40.

[0141] Figure 33 (b) of FIG. 1 shows the current and electric field distribution of the antenna 40. As shown in (b) of FIG. 1, Figure 29 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. As shown in (b) of FIG. 1, Figure 34 The current at the feed line 42 presents a same direction distribution. Based on the same direction distribution of the current at the feed line 42, Figure 29 This feed shown in (a) of FIG. 1 can be referred to as a line CM feed. Based on the reverse distribution of the current on both sides of the connection of the radiating body to the feed line 42, Figure 35 This antenna mode shown in (b) of FIG. 1 can be referred to as a line CM mode (also can be simply referred to as a CM mode, for example, for a line antenna, the CM mode refers to the line CM mode). Figure 29 The current and electric field shown in (b) of FIG. 1 can be referred to as the current and electric field of the line CM mode, respectively.

[0142] The current is stronger at the middle position 41 of the antenna 40 (the current maximum point is located near the middle position 41 of the antenna 40) and weaker at both ends of the antenna 40, as shown in (b) of FIG. 1. Figure 36 The electric field is weaker at the middle position 41 of the antenna 40 and stronger at both ends of the antenna 40.

[0143] It should be understood that the current maximum point can correspond to the electric field zero point, for example, the current maximum point and the electric field zero point one-to-one correspond. The current maximum point can be understood as the point where the strength of the radiating body current is maximum, and correspondingly, can be understood as the point where the strength of the electric field generated by the radiating body (for example, between the radiating body and the ground) is minimum.

[0144] 2. Line differential mode (DM) mode

[0145] AsFigure 29 Image (a) shows that the two radiators of antenna 50 have open ends on both sides and are connected to a feed circuit at the middle position 51. In one embodiment, antenna 50 is fed using an anti-symmetrical feed. One end of the feed circuit is connected to one of the radiators via a feed wire 52, and the other end of the feed circuit is connected to the other radiator via a feed wire 52. The middle position 51 can be the geometric center of antenna 50, or the gap formed between the radiators.

[0146] It should be understood that the "center-antisymmetric feeding" mentioned in this application can be understood as the positive and negative poles of the feeding unit being connected to two connection points near the midpoint of the radiator. In one embodiment, the signal amplitudes output by the positive and negative poles of the feeding unit are the same, but the phases are opposite, for example, the phase difference is 180°±10°.

[0147] Figure 31 (b) shows the current and electric field distribution of antenna 50. Figure 32 As shown in (b), the current in the antenna 50 is distributed in the same direction on both sides of the middle position 51, for example, an antisymmetric distribution; the electric field is distributed in opposite directions on both sides of the middle position 51. Figure 33 to Figure 36 As shown in (b), the current at feeder line 52 exhibits a reverse distribution. Based on the reverse current distribution at feeder line 52, Figure 33 The type of feed shown in (a) can be called a line DM feed. This is based on the fact that the current is distributed in the same direction on both sides of the connection between the radiator and the feed line 52. Figure 34 The antenna mode shown in (b) can be called the line DM mode (or simply DM mode; for example, for a line antenna, DM mode refers to the line DM mode). Figure 35 The current and electric field shown in (b) can be referred to as the current and electric field in the line DM mode, respectively.

[0148] The current is stronger at the middle position 51 of antenna 50 (the current is strongest near the middle position 51 of antenna 50), and weaker at both ends of antenna 50. Figure 36 As shown in (b) of the diagram. The electric field is weaker at the middle position 51 of the antenna 50 and stronger at both ends of the linear antenna 50.

[0149] It should be understood that an antenna radiator can be considered as a metal structural component that generates radiation, and its quantity can be one, such as... Figure 37 As shown, or, it can be two items, such as Figure 37 As shown, adjustments can be made according to actual design or production needs. For example, for the line CM mode, it can also be as follows: Figure 37As shown, two radiators are used, and the two ends of the two radiators are oppositely arranged and spaced apart by a gap. Symmetrical feeding is used at the two ends close to each other, for example, the same feed signal is fed into the two ends close to each other of the two radiators, respectively, and the similar effect as shown in Figure 24 can also be obtained. Correspondingly, for the line DM mode, as shown in Figure 9 , one radiator is used, and two feed points are arranged at the middle position of the radiator and anti-symmetrical feeding is used, for example, the signals with the same amplitude and opposite phase are fed into the two symmetrical feed points on the radiator, respectively, and the similar effect as shown in Figure 17 can also be obtained.

[0150] 3. Line CM-DM mode

[0151] The above Figure 23 and Figure 24 respectively show the line CM mode and the line DM mode respectively generated by using different feeding modes when the two ends of the radiator are open.

[0152] When the feeding form of the antenna is asymmetric feeding (the feed point deviates from the middle position of the radiator, including edge feeding or offset feeding), or the ground point (coupled with the ground) of the radiator is asymmetric (the ground point deviates from the middle position of the radiator), the antenna can simultaneously generate a first resonance and a second resonance, which correspond to the line CM mode and the line DM mode, respectively. For example, the first resonance corresponds to the line CM mode, and the current and electric field distribution is as shown in Figure 38 (b). The second resonance corresponds to the line DM mode, and the current and electric field distribution is as shown in Figure 9 (b).

[0153] Figure 17 is another schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0154] As shown in Figure 23 , the conductive frame 11 of the electronic device 10 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.

[0155] The second side 132 can have a first position 101 and a second position 102, and the frame 11 is provided with a slit at the first position 101 and the second position 102. The frame between the first position 101 and the second position 102 is a first frame 105. The radiator of the antenna 100 can be the first frame 105.

[0156] The first frame 105 is symmetrical along the 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.

[0157] Figure 24 and Figure 39 areFigure 29 The simulation result diagram of the antenna 100 in the electronic device 10 is shown. Among them, Figure 30 is Figure 39 The S parameter simulation result of the antenna 100 in the electronic device 10 is shown. Figure 40 is ​ The system efficiency and radiation efficiency simulation result of the antenna 100 in the electronic device 10 is shown.

[0158] It should be understood that, on the basis of the structure of the antenna 100 shown in ​ the line CM mode and the line DM mode described in the above embodiments can be excited by different feeding modes.

[0159] As shown in ​ , the antenna can resonate near 2GHz in the line CM mode and the line DM mode.

[0160] As shown in ​ , at the resonance point (2GHz), the radiation efficiency of the line CM mode is -4.42dB, the system efficiency is -4.47dB, the radiation efficiency of the line DM mode is -1.27dB, and the system efficiency is -1.39dB.

[0161] It should be understood that for the line CM mode, the transverse mode of the floor can be excited (the proportion is more than the longitudinal mode), but the currents corresponding to the transverse mode on the floor will cancel each other out, so the system efficiency and the radiation efficiency of the line CM mode are relatively low.

[0162] And for the line DM mode, the radiation of the antenna in the line DM mode is mainly generated by the radiator (the first bezel), and the system efficiency and the radiation efficiency are better than those of the line CM mode.

[0163] At the same time, since the radiation of the line CM mode is mainly generated by the floor, as the resonance frequency increases, the current mode on the floor increases. Due to the increase of the current mode on the floor, different currents will generate radiation in different directions, and it is difficult to determine the maximum radiation direction of the antenna.

[0164] For example, when the radiator works in the line CM mode, due to the multiple current modes on the floor, the maximum radiation direction of the antenna pattern may deviate to the left or right side of the top direction (for example, the z direction) of the electronic device 10, as ​ shown. In order to simplify the discussion, only the left deviation of the top direction (for example, the z direction) of the electronic device 10 shown in ​ is taken as an example. In an embodiment, when the current on the floor is more concentrated (for example, stronger) on the left side, the maximum radiation direction of the antenna pattern deviates to the left side of the top direction of the electronic device 10.

[0165] It should be understood that when a user performs satellite navigation or communication, the maximum radiation direction of the antenna needs to be pointed to the satellite to achieve the satellite (establish a communication connection with the satellite). When the maximum radiation direction of the radiation pattern generated by the antenna can deviate to the left or right side of the top direction (for example, the z direction) of the electronic device 10, it is necessary to point the maximum radiation direction of the radiation pattern generated by the antenna to the sky, which causes great inconvenience in use. If the maximum radiation direction of the antenna is the z direction, the maximum radiation direction of the antenna points to the top direction (for example, the z direction) of the electronic device 10, and the user does not need to change the posture of holding the electronic device 10 when the satellite is acquired.

[0166] For the linear DM mode, the radiation of the antenna is mainly generated by the radiator (the first frame), and multiple current modes will not be generated on the ground, so it is easy to determine the maximum radiation direction of the radiation pattern generated by the antenna. And because the current is mainly concentrated on the radiator (the first frame) in the linear DM mode, it is easy to determine that the maximum radiation direction of the radiation pattern generated by the antenna is the top direction (for example, the z direction) of the electronic device 10, and the user does not need to change the posture of holding the electronic device 10 when the satellite is acquired, as shown in ​ .

[0167] ​ is another schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0168] As shown in ​ , the electronic device 10 includes a conductive frame 11, an antenna 200, and a ground plate 300.

[0169] The frame 11 includes a first position 201 and a second position 202. The frame 11 is provided with a first slit and a second slit at the first position 201 and the second position 202, respectively.

[0170] The antenna 200 includes a first radiator 210 and a first feed circuit 221. The first radiator 210 is a conductive part of the frame 11 between the first position 201 and the second position 202. The first radiator 210 includes a first feed point 211. The first feed circuit 221 is coupled to the first feed point 211.

[0171] In an embodiment, the first feed circuit 221 can be used to feed signals of a first frequency band and a second frequency band. In an embodiment, the antenna 200 can be used as a satellite antenna, the first frequency band can correspond to a transmission frequency band of the satellite antenna, and the second frequency band can correspond to a reception frequency band of the satellite antenna.

[0172] The antenna 200 further comprises a first ground control circuit 231 and a second ground control circuit 232. The first radiator 210 comprises a first connection point 241 and a second connection point 242. A first end of the first ground control circuit 231 is coupled with the first connection point 241, and a second end of the first ground control circuit 231 is coupled with the ground plane 300 to achieve ground. A first end of the second ground control circuit 232 is coupled with the second connection point 242, and a second end of the second ground control circuit 232 is coupled with the ground plane 300 to achieve ground. The first connection point 241 is located between the first position 201 and the second connection point 242, and the second connection point 242 is located between the first connection point 241 and the second position 202. The first feeding point 211 is located between the first connection point 241 and the first position 201.

[0173] It should be understood that the first feeding point 211 being located between the first connection point 241 and the first position 201 can be understood as including two endpoints. In an embodiment, the first feeding point 211 can be the same as the first connection point 241, and the first feeding circuit 221 and the first ground control circuit 231 are coupled with the first radiator 210 at the same location, for example, through the same metal spring to be electrically connected with the first radiator 210.

[0174] The first radiator 210 is configured to generate a first resonance (which can correspond to the first frequency band described above). The first radiator 210, the first ground control circuit 231 and the second ground control circuit 232 are configured to generate a second resonance (which can correspond to the second frequency band described above), and the second resonance has a resonance point frequency higher than that of the first resonance.

[0175] It should be understood that the first radiator 210 being configured to generate a first resonance can be understood as the first radiator 210 being configured to generate a first resonance, wherein the length of the first radiator 210 directly affects the first resonance (e.g., the frequency of the resonance point). In an embodiment, the entire conductive part of the frame between the first position 201 and the second position 202 of the first radiator 210 is configured to generate the first resonance. In an embodiment, the first ground control circuit 231 and the second ground control circuit 232 can also be configured to affect the first resonance (e.g., the frequency of the resonance point). The first radiator 210, the first ground control circuit 231 and the second ground control circuit 232 being configured to generate a second resonance can be understood as the first radiator 210, the first ground control circuit 231 and the second ground control circuit 232 are all configured to generate a second resonance, wherein the length of the first radiator 210, and the first ground control circuit 231 and the second ground control circuit 232 all directly affect the second resonance (e.g., the frequency of the resonance point). In an embodiment, the positions of the first connection point 241 and the second connection point 242 on the first radiator 210 also affect the second resonance (e.g., the frequency of the resonance point).

[0176] In one embodiment, the first ground control circuit 231 and the second ground control circuit 232 are in a first circuit state at a resonance point of the first resonance, and are in a second circuit state at a resonance point of the second resonance, the first circuit state being different from the second circuit state.

[0177] In one embodiment, the first circuit state and the second circuit state can be understood as two different states of being disconnected (open circuit) and being connected (short circuit). In one embodiment, the first circuit state can be understood as a state in which the first ground control circuit 231 and the second ground control circuit 232 are in the state, and the first radiator 210 is equivalent to an open circuit at the first connection point 241 and the second connection point 242 (the first connection point 241 and the second connection point 242 are not coupled to the ground plate 300). In one embodiment, the second circuit state can be understood as a state in which the first ground control circuit 231 and the second ground control circuit 232 are in the state, and the first radiator 210 is equivalent to a short circuit at the first connection point 241 and the second connection point 242 (the first connection point 241 and the second connection point 242 are coupled to the ground plate 300).

[0178] According to the technical scheme provided in the embodiments of the present application, different working states of the first ground control circuit 231 and the second ground control circuit 232 are used to make the antenna 200 generate the first resonance and the second resonance through different parts of the first radiator 210. At the resonance point of the first resonance, the first ground control circuit 231 and the second ground control circuit 232 are in the first circuit state, and the antenna 200 can generate the first resonance through the whole first radiator 210. At the resonance point of the second resonance, the first ground control circuit 231 and the second ground control circuit 232 are in the second circuit state, and the antenna 200 can generate the second resonance through the first radiator 210 between the first position 201 and the first connection point 241 and between the second position 202 and the second connection point 242. The antenna 200 can generate the first resonance and the second resonance through the first radiator 210 to make the electronic device 10 work in the transmission frequency band and the reception frequency band in satellite communication. Moreover, the first radiator 210 is multiplexed to generate the first resonance and the second resonance, and the size of the antenna 200 is relatively small.

[0179] In one embodiment, the first ground control circuit 231 or the second ground control circuit 232 includes at least one of the following circuits: a filter circuit, a switch circuit. The filter circuit can include a high-pass low-resistance filter. For example, the filter circuit is in a disconnected state in the first frequency band and in a connected state in the second frequency band. The switch circuit can refer to a circuit including a switch. For example, the switch in the switch circuit is in a disconnected state in the first frequency band and in a connected state in the second frequency band.

[0180] It should be understood that the first ground control circuit 231 (or the second ground control circuit 232) in the first frequency band is in an open state and in the second frequency band is in a conductive state, which can be two opposite states. In the first frequency band, the first ground control circuit 231 is in an open state relative to the second frequency band, which can be understood as the current on the first radiator 210 can flow less into the floor through the first ground control circuit 231; in the second frequency band, the first ground control circuit 231 is in a conductive state relative to the first frequency band, which can be understood as the current on the first radiator 210 can flow more into the floor through the first ground control circuit 231.

[0181] In one embodiment, the first ground control circuit 231 (or the second ground control circuit 232) in the first frequency band is in an open state and in the second frequency band is in a conductive state, which can be two opposite states. In the first frequency band, the first ground control circuit 231 is in an open state, which can be understood as the current on the first radiator 210 cannot flow into the floor through the first ground control circuit 231; in the second frequency band, the first ground control circuit 231 is in a conductive state, which can be understood as the current on the first radiator 210 can flow into the floor through the first ground control circuit 231.

[0182] In one embodiment, the first radiator 210 can further include a solid or device grounding point (not shown in the figure) between the first position 201 and the second position 202, and the first radiator 210 can be coupled to the floor 300 through the solid or device grounding point. The setting position of the solid or device grounding point can be referred to, for example ​ as shown.

[0183] In one embodiment, the solid or device grounding point of the first radiator 210 can be located in the central region of the first radiator 210. In one embodiment, the solid grounding point can be electrically connected to the floor 300 through a grounding member (such as a metal spring, a metal tie, etc.). In one embodiment, the device grounding point can be electrically connected to the floor 300 through a capacitor / inductor or the like.

[0184] In one embodiment, the electronic device includes a middle frame, and the middle frame includes a frame 11 and a middle plate, wherein the middle plate is electrically connected to the floor 300. In one embodiment, the frame 11 is connected to the middle plate through a first tie structure (not shown in the figure), and the connection position of the first tie structure and the frame 11 is located between the first position 201 and the second position 202 of the frame; and the connection position of the first tie structure and the frame 11 is located between the first connection point 241 and the second connection point 242 of the first radiator 210.

[0185] It should be understood that when the first radiator 210 generates the first resonance, the central region includes a large current point, and setting the entity or device grounding point in the region does not affect the current distribution on the first radiator 210, and thus does not substantially affect the first resonance.

[0186] It should be understood that when the first radiator 210 between the first position and the first connection point 241 and the second position and the second connection point 242 generates the second resonance, setting the entity or device grounding point between the first connection point 241 and the second connection point 242 can cause the current to be further concentrated on the first radiator 210 between the first position and the first connection point 241 and between the second position and the second connection point 242, thereby cooperating with the first grounding control circuit 231 and / or the second grounding control circuit 232 to enhance the effect of being in an open state in the first frequency band and being in a conductive state in the second frequency band.

[0187] Similarly, in the embodiments shown in the present application ​ , ​ , ​ In the embodiments shown in the present application

[0188] It should be understood that the first circuit state and the second circuit state described above can be implemented in a variety of different ways. For the sake of brevity of the discussion, only the two circuits described above are taken as examples for illustration. The first grounding control circuit 231 and the second grounding control circuit 232 can have the same structure (for example, both through electronic components, filter circuits, switches, etc.), or the first grounding control circuit 231 and the second grounding control circuit 232 can be implemented by different structures respectively, and the embodiments of the present application do not limit this. In subsequent embodiments, only the case where the first grounding control circuit 231 and the second grounding control circuit 232 have the same structure is taken as an example for illustration.

[0189] In one embodiment, at the resonance point of the first resonance, the current on the first radiator 210 is in the same direction. At the resonance point of the second resonance, the current on the first radiator 210 between the first end of the first radiator 210 (one end at the first position 201) and the first connection point 241 is in the same direction as the current on the first radiator 210 between the second end of the first radiator 210 (one end at the second position 202) and the second connection point 242.

[0190] It should be understood that the first resonance and the second resonance are both generated by the line DM mode described in the above embodiments. Since the current generated by the line DM mode is mainly generated by the first radiator 210, multiple current modes will not be generated on the ground plate 300, and the maximum radiation direction of the directional diagram generated by the antenna 200 can be easily determined.

[0191] In one embodiment, at the resonance point of the first resonance, the central region of the first radiator 210 can include an electric field zero point (a large current point).

[0192] It should be understood that the central region of the first radiator 210 can be understood as a region within a certain range (for example, 5 mm) from the center of the first radiator 210, and the lengths of the first radiator 210 on both sides of the center are the same. The first resonance is generated by the line DM mode described in the above embodiments, and an electric field zero point can be generated in the central region of the first radiator 210.

[0193] In one embodiment, at the resonance point of the second resonance, the first current region and the second current region include an electric field zero point (a large current point). The first current region and the second current region can be a region near the first connection point 241 and the second connection point 242 (for example, a region within a first threshold range from the first connection point 241 and the second connection point 242, for example, 5 mm).

[0194] It should be understood that the second resonance is generated by the line DM mode described in the above embodiments, and an electric field zero point (a large current point) can be generated in the region near the first connection point 241 and the second connection point 242.

[0195] In one embodiment, 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. The first position 201 and the second position 202 are located on the second side 132.

[0196] It should be understood that since the current is mainly concentrated on the first radiator 210 under the line DM mode, it is easy to determine that the maximum radiation direction of the directional diagram generated by the antenna 200 is the top direction (for example, the z direction) of the electronic device 10, and the user does not need to change the posture of holding the electronic device 10 at the time of aiming at the star.

[0197] Also, when the first radiator 210 is arranged on the second side 132, the antenna 200 has high radiation efficiency and system efficiency for the resonance generated by the line DM mode.

[0198] In one embodiment, the first position 201 and the second position 202 can be 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. It should be understood that as the symmetry of the first position 201 and the second position 202 increases, the radiation characteristics of the antenna 200 also correspondingly improve.

[0199] In one embodiment, the length of the first radiator 210 is one half of a first wavelength, and the first wavelength is the wavelength corresponding to the first resonance.

[0200] In one embodiment, the distance between the first position 201 and the first connection point 241 is one quarter of the second wavelength, the distance between the second position 202 and the second connection point 242 is one quarter of the second wavelength, and the second wavelength is the wavelength corresponding to the second resonance.

[0201] It should be understood that the first resonance can be generated by the line DM mode in the above-mentioned embodiments. The second resonance can be generated by the line DM mode in the above-mentioned embodiments.

[0202] In one embodiment, the ratio between the resonance point frequency of the second resonance and the resonance point frequency of the first resonance is greater than 1 and less than or equal to 3.

[0203] In one embodiment, the ratio between the resonance point frequency of the second resonance and the resonance point frequency of the first resonance is greater than or equal to 1.5 and less than or equal to 2.5.

[0204] In one embodiment, the ratio between the distance between the first connection point 241 and the second connection point 242 and the length of the first radiator is greater than zero and less than or equal to two-thirds.

[0205] In one embodiment, the ratio between the distance between the first connection point 241 and the second connection point 242 and the length of the first radiator is greater than or equal to one-third and less than or equal to five-thirds.

[0206] It should be understood that the positions of the first connection point 241 and the second connection point 242 on the first radiator 210 are related to the resonance point of the second resonance and the resonance point of the first resonance, and when the ratio between the resonance point frequency of the second resonance and the resonance point frequency of the first resonance increases, the distance between the first connection point 241 and the second connection point 242 increases. In one embodiment, the distance between the first connection point 241 and the second connection point 242 can be adjusted by the first ground control circuit 231 and the second ground control circuit 232.

[0207] In one embodiment, when the ratio between the resonance point frequency of the second resonance and the resonance point frequency of the first resonance is unchanged, the first ground control circuit 231 and the second ground control circuit 232 can be equivalent to a capacitor, and the greater the equivalent capacitance value of the first ground control circuit 231 and the second ground control circuit 232, the smaller the distance between the first connection point 241 and the second connection point 242 adjusted by the first ground control circuit 231 and the second ground control circuit 232.

[0208] In one embodiment, when the ratio between the resonance point frequency of the second resonance and the resonance point frequency of the first resonance is unchanged, the first ground control circuit 231 and the second ground control circuit 232 can be equivalent to an inductor, and the greater the equivalent inductance value of the first ground control circuit 231 and the second ground control circuit 232, the greater the distance between the first connection point 241 and the second connection point 242 adjusted by the first ground control circuit 231 and the second ground control circuit 232.

[0209] In one embodiment, the first ground control circuit 231 and the second ground control circuit 232 only include one electronic element. In one embodiment, the electronic element is a capacitor or an inductor. In one embodiment, when the first ground control circuit 231 and the second ground control circuit 232 only include one electronic element, the equivalent capacitance value of the electronic element in the first ground control circuit 231 and the equivalent capacitance value of the electronic element in the second ground control circuit 232 are substantially the same (e.g., the equivalent capacitance value of the electronic element in the second ground control circuit 232 is within the range of ±25% of the equivalent capacitance value of the electronic element in the first ground control circuit 231).

[0210] In one embodiment, the distance between the first connection point 241 and the center of the first radiator 210 is substantially the same as the distance between the second connection point 242 and the center of the first radiator 210.

[0211] It should be understood that substantially the same can be understood as the ratio of the distance between the first connection point 241 and the center of the first radiator 210 to the distance between the second connection point 242 and the center of the first radiator 210 being greater than or equal to 0.9 and less than or equal to 1.1.

[0212] In one embodiment, the distance between the first feed point 211 and the first position 202 is less than or equal to 5mm. In one embodiment, the distance between the first feed point 211 and the first position 202 is less than or equal to 3mm.

[0213] It should be understood that as the distance between the first feed point 211 and the first position 202 decreases, it is more conducive to achieve miniaturization of the antenna 200. When the first feed circuit 221 is electrically connected to the first radiator 210 through a metal spring, the above-mentioned distance can be understood as the length of the conductor portion of the frame between the midpoint of the metal spring and the first position 202, which can be understood accordingly in the embodiments of the present application.

[0214] In one embodiment, the antenna 200 can further include an electronic element 230. The first radiator 210 includes a third connection point 243, which is located between the second connection point 242 and the second position 202. The first end of the electronic element 230 is coupled to the third connection point 243, and the second end of the electronic element 230 is coupled to the ground plate 300 to achieve grounding.

[0215] It should be understood that the electronic element 230 can be used to increase the symmetry of the antenna 200 to improve the radiation characteristics of the antenna 200. In one embodiment, the third connection point 243 is symmetrical to the first feed point 211 along a virtual axis of the first radiator 210, and the lengths of the first radiator 210 on both sides of the virtual axis are the same. In one embodiment, the electronic element 230 can be a capacitor.

[0216] In an embodiment, the first feeding circuit 221 comprises 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, as shown in ​ The first radio frequency channel 2211 can be used to feed the first electrical signal to make the antenna 200 generate the first resonance, which can correspond to the transmitting frequency band in satellite communication. The second radio frequency channel 2212 can be used to feed the second electrical signal to make the antenna 200 generate the second resonance, which can correspond to the receiving frequency band in satellite communication. 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).

[0217] It should be understood that the embodiments of the present application feed the electrical signal to the antenna 200 by means of combining feeding, which can reduce the feeding points on the radiator and reduce the complexity of system design.

[0218] In an 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 comprise a switch 2213, as shown in ​ The first end of the switch 2213 is coupled with the first feeding point 211, 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.

[0219] It should be understood that when the transmitting frequency band and the receiving frequency band work in TDD, the antenna 200 can generate the first resonance and the second resonance by the coupling connection state of the first end, the second end and the third end of the switch 2213 in different time slots.

[0220] Meanwhile, in the embodiments of the present application, the switch 2213 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 211, and the switch 2213 can be located at any position of the first feeding circuit 221, for example, close to or far away from the first feeding point 211, which is only exemplary and does not limit the specific position of the switch 2213.

[0221] In an embodiment, when the transmitting frequency band and the receiving frequency band in satellite communication work in frequency division duplexing (FDD), the first feeding circuit 221 can further comprise a combiner 2214, as shown in ​The first end of the combiner 2214 is coupled with the first feeding point 211, 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.

[0222] It should be understood that when the transmitting frequency band and the receiving frequency band work in FDD, the first radio frequency channel 2211 and the second radio frequency channel 2212 can simultaneously feed the telecommunication signal antenna 200 through the combiner 2214 to simultaneously generate the first resonance and the second resonance.

[0223] In an embodiment, the width of the first slit or the second slit can be greater than or equal to 0.1 mm and less than or equal to 2 mm. It should be understood that the width of the slit can be understood as the minimum distance between the conductors on both sides of the slit.

[0224] ​ is ​ is a simulation result diagram of the antenna 200 shown in FIG. 2 at the resonance point of the second resonance. ​ is ​ is a current distribution schematic diagram of the antenna 200 shown in FIG. 2 when the first connection point and the second connection point are coupled with the floor. ​ is ​ is a radiation pattern of the antenna 200 shown in FIG. 2 when the first connection point and the second connection point are directly coupled with the floor. ​ is ​ is a current distribution schematic diagram of the antenna 200 shown in FIG. 2 when the first connection point and the second connection point are coupled with the floor through inductance. ​ is ​ is a radiation pattern of the antenna 200 shown in FIG. 2 when the first connection point and the second connection point are coupled with the floor through inductance. ​ is ​ is a current distribution schematic diagram of the antenna 200 shown in FIG. 2 when the first connection point and the second connection point are coupled with the floor through capacitance. ​ is ​ is a radiation pattern of the antenna 200 shown in FIG. 2 when the first connection point and the second connection point are coupled with the floor through capacitance.

[0225] It should be understood that in the simulation results of ​ , the lengths of the first radiators are all the same, and for the sake of simplicity of the discussion, only the resonance point of the first resonance is taken as 2 GHz and the resonance point of the second resonance is taken as 3.6 GHz for illustration.

[0226] As ​As shown, when the first connection point 241 and the second connection point 242 are directly coupled to the ground (no electronic components are electrically connected between the connection points and the ground), at the resonant point of the second resonance, the current is mainly concentrated on the first radiator between the first position 201 and the first connection point 241, and between the second position 202 and the second connection point 242, while the current on the first radiator between the first connection point 241 and the second connection point 242 is relatively small. Therefore, the second resonance of the antenna is mainly generated by the first position 201 and the first connection point 241, and between the first radiator between the second position 202 and the second connection point 242.

[0227] Furthermore, the current on the first radiator 210 between the first position 201 and the first connection point 241 is in the same direction as the current on the first radiator 210 between the second position 202 and the second connection point 242.

[0228] like ​ As shown, at the resonant point of the second resonance, the maximum radiation direction of the antenna pattern is the top direction of the electronic device (e.g., the z-direction). When using the electronic device for satellite communication in the first frequency band, the user does not need to change the posture of holding the electronic device, thus obtaining a good user experience.

[0229] like ​ As shown, when the first connection point 241 and the second connection point 242 are coupled to the ground via inductors (the first and second grounding control circuits consist only of inductors) (e.g., with an inductance value of 1.5nH), at the resonant point of the second resonance, the current is mainly concentrated between the first position 201 and the first connection point 241, and between the second position 202 and the second connection point 242, with less current flowing through the first radiator between the first connection point 241 and the second connection point 242. Therefore, the second resonance of the antenna is mainly generated by the first position 201 and the first connection point 241, and between the second position 202 and the second connection point 242.

[0230] Furthermore, the current on the first radiator 210 between the first position 201 and the first connection point 241 is in the same direction as the current on the first radiator 210 between the second position 202 and the second connection point 242.

[0231] ​ The current distribution shown is similar to ​ The current distribution shown is similar. At the resonant point of the second resonance, the inductor coupled to the first connection point 241 and the second connection point 242 is in the second circuit state, which is equivalent to being on.

[0232] like ​As shown in the figure, at the resonance point of the second resonance, the maximum radiation direction of the directional diagram generated by the antenna is the top direction (for example, the z direction) of the electronic device, and the user does not need to change the posture of holding the electronic device 10 to obtain a good user experience when using the electronic device to perform satellite navigation or communication in the first frequency band.

[0233] As shown in the figure, ​ As shown in the figure, when the first connection point 241 and the second connection point 242 are coupled to the ground through inductance (the first ground control circuit and the second ground control circuit only include capacitance, for example, the capacitance value is 2.2 pF), at the resonance point of the second resonance, the current is mainly concentrated on the first radiator between the first position 201 and the first connection point 241, and the second position 202 and the second connection point 242, and the current on the first radiator between the first connection point 241 and the second connection point 242 is less. Therefore, the second resonance of the antenna is mainly generated by the first radiator between the first position 201 and the first connection point 241, and the second position 202 and the second connection point 242.

[0234] In addition, the current on the first radiator 210 between the first position 201 and the first connection point 241 is in the same direction as the current on the first radiator 210 between the second position 202 and the second connection point 242.

[0235] It should be understood that, for the sake of brevity of the discussion, in the above-mentioned embodiments, only the inductance value of the inductance is 1.5 nH, and the capacitance value of the capacitance is 2.2 pF are exemplified, in actual application, it can be adjusted according to actual production or design, for example, in the range of 1.6 GHz-4 GHz, the inductance value of the above-mentioned inductance can be less than 5 nH, and the capacitance value of the above-mentioned capacitance can be greater than 1 pF.

[0236] ​ The current distribution is similar to that shown in the figure, at the resonance point of the second resonance, the capacitance coupled to the first connection point 241 and the second connection point 242 is in the second circuit state, which is equivalent to being turned on. ​

[0237] As shown in the figure, ​ As shown in the figure, at the resonance point of the second resonance, the maximum radiation direction of the directional diagram generated by the antenna is the top direction (for example, the z direction) of the electronic device, and the user does not need to change the posture of holding the electronic device 10 to obtain a good user experience when using the electronic device to perform satellite navigation or communication in the first frequency band.

[0238] ​ is another schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0239] As shown in the figure, ​ ​As shown, the first ground control circuit 231 and the second ground control circuit 232 in the above embodiment can be filter circuits.

[0240] It should be understood that when the first ground control circuit 231 and the second ground control circuit 232 are filter circuits, the first circuit state and the second circuit state are high-impedance state and low-impedance state of the filter circuits. When the antenna generates the first resonance, the first ground control circuit 231 and the second ground control circuit 232 are in the high-impedance state, and the first radiator 210 is equivalent to an open circuit at the first connection point 241 and the second connection point 242 (the first connection point 241 and the second connection point 242 are not coupled to the ground plate 300). When the antenna generates the second resonance, the first ground control circuit 231 and the second ground control circuit 232 are in the low-impedance state, and the first radiator 210 is equivalent to a short circuit at the first connection point 241 and the second connection point 242 (the first connection point 241 and the second connection point 242 are coupled to the ground plate 300).

[0241] In one embodiment, the first ground control circuit 231 can include a first electronic element 251, a second electronic element 252, and a third electronic element 253. A first end of the first electronic element 251 and a first end of the second electronic element 252 are coupled to the first connection point 241, a second end of the first electronic element 251 and a second end of the second electronic element 252 are coupled to a first end of the third electronic element 253, and a second end of the third electronic element 253 is coupled to the ground plate 300.

[0242] In one embodiment, the second ground control circuit 232 has the same structure as the first ground control circuit 231 to improve the symmetry of the antenna. Wherein the same can be understood as including the same number of electronic elements, and the connection mode between the electronic elements is also the same.

[0243] In one embodiment, the second ground control circuit 232 can include a fourth electronic element 254, a fifth electronic element 255, and a sixth electronic element 256. A first end of the fourth electronic element 254 and a first end of the fifth electronic element 255 are coupled to the first connection point 241, a second end of the fourth electronic element 254 and a second end of the fifth electronic element 255 are coupled to a first end of the sixth electronic element 256, and a second end of the sixth electronic element 256 is coupled to the ground plate 300.

[0244] It should be understood that for the sake of brevity of the discussion, only the first ground control circuit 231 and the second ground control circuit 232 are in the above structure in the embodiments of the present application, and the first ground control circuit 231 and the second ground control circuit 232 can also be filter circuits of other structures in actual production or design, which are not limited in the embodiments of the present application.

[0245] In one embodiment, the second ground control circuit 232 has the same structure as the first ground control circuit 231, and the electronic elements in the first ground control circuit 231 are substantially the same as the corresponding electronic elements in the second ground control circuit 232 (for example, the first electronic element 251 and the fourth electronic element 254 are both capacitors, and the equivalent capacitance value of the first electronic element 251 is within ±25% of the equivalent capacitance value of the fourth electronic element 254).

[0246] In one embodiment, the antenna 200 can further include a tuning circuit 233. The first radiator 210 includes a third connection point 243 located between the second connection point 242 and the second position 202. A first end of the tuning circuit 233 is coupled to the third connection point 243, and a second end of the tuning circuit 233 is coupled to the ground plane 300 to achieve grounding.

[0247] It should be understood that the tuning circuit 233 can be used to determine the resonance point frequency of the first resonance and the resonance point frequency of the second resonance. In one embodiment, when the tuning circuit 233 is equivalent to a capacitor, the electrical length of the radiator can be increased without changing the physical length of the radiator, so that the resonance point frequency of the resonance is shifted to a high frequency. In one embodiment, when the tuning circuit 233 is equivalent to an inductor, the electrical length of the radiator can be reduced without changing the physical length of the radiator, so that the resonance point frequency of the resonance is shifted to a low frequency. Therefore, when the antenna produces the first resonance and the second resonance, the tuning circuit 233 can be equivalent to different capacitors or inductors to adjust the resonance point frequency of the first resonance and the resonance point frequency of the second resonance.

[0248] In one embodiment, the length D1 of the frame between the third connection point 243 and the second position 202 satisfies: D1≤L1×30%, where L1 is the length of the frame between the first position 201 and the second position 202. In one embodiment, D1≤L1×10%, as shown in FIG. 2B. In one embodiment, D1 is less than or equal to 8mm. ​

[0249] It should be understood that the third connection point 243 can be arranged in a region close to the second position 202, and the first end and the second end of the first radiator 210 are open ends. In the region near the open ends, the electric field is generally strong, and the region with a strong electric field has better tuning performance.

[0250] ​In one embodiment, when the third connection point 243 and the second connection point 242 are the same, the current on the first radiator 210 is in the same direction at the resonance point of the first resonance, and the current on the first radiator 210 between the first end of the first radiator 210 and the first connection point 241 and the current on the first radiator 210 between the second end of the first radiator 210 and the second connection point 242 (or the third connection point 243) are in opposite directions at the resonance point of the second resonance.

[0251] It should be understood that when the third connection point 243 and the second connection point 242 are the same, the first resonance is generated by the line DM mode described in the above embodiment, and the second resonance is generated by the line CM mode described in the above embodiment.

[0252] In one embodiment, the tuning circuit 233 can include a seventh electronic element 257 and an eighth electronic element 258. A first end of the seventh electronic element 257 is coupled with the third connection point, a second end of the seventh electronic element 257 is coupled with a first end of the eighth electronic element 258, and a second end of the eighth electronic element 258 is coupled with the ground plane 300 to achieve grounding.

[0253] It should be understood that, for the sake of simplicity of discussion, in the embodiments of the present application, only the tuning circuit 233 is described as the above structure, and in actual production or application, different structures can be selected, and the embodiments of the present application do not limit this.

[0254] ​ is a simulation result diagram of the antenna shown in ​ is a simulation result diagram of the antenna shown in ​ is a simulation result diagram of the antenna shown in ​ is a simulation result diagram of the antenna shown in ​ is a simulation result diagram of the antenna shown in ​ is a simulation result diagram of the antenna shown in ​ is a simulation result diagram of the antenna shown in ​ is a simulation result diagram of the antenna shown in ​ is a simulation result diagram of the antenna shown in ​ is a simulation result diagram of the antenna shown in ​ is a simulation result diagram of the antenna shown in ​ is a simulation result diagram of the antenna shown in

[0255] It should be understood that, for the sake of simplicity of discussion, only the simulation results under the condition that the first electronic element and the fourth electronic element are capacitors (the capacitance value is 2.1 pF), the second electronic element and the fifth electronic element are inductors (the inductance value is 3 nH), the third electronic element and the sixth electronic element are inductors (the inductance value is 1.35 nH), the seventh electronic element is a capacitor (the capacitance value is 0.25 pF), and the eighth electronic element is an inductor (the inductance value is 17 nH) are shown.

[0256] like ​ As shown, the antenna can resonate near 2 GHz (first resonance) and near 3.6 GHz (second resonance). The resonant frequency band of the first resonance (e.g., S11 < -4 dB) can include the transmission frequency band of satellite communication, and the resonant frequency band of the second resonance (e.g., S11 < -4 dB) can include the reception frequency band of satellite communication.

[0257] like ​ As shown, at the resonant point of the first resonance, there is a strong current in all the stubs of the first radiator. Therefore, the first resonance of the antenna is generated by the entire first radiator. Furthermore, the currents in the first radiator are in the same direction.

[0258] like ​ As shown, at the resonant point of the second resonance, the current is mainly concentrated on the first radiator between the first position and the first connection point, and between the second position and the second connection point, while the current on the first radiator between the first connection point and the second connection point is relatively small. Therefore, the second resonance of the antenna is mainly generated by the first position and the first connection point, and between the first radiator between the second position and the second connection point. Furthermore, the current on the first radiator between the first position and the first connection point is in the same direction as the current on the first radiator between the second position and the second connection point.

[0259] like ​ As shown in (a), this is the three-dimensional radiation pattern of the antenna at the resonant point (2GHz) of the first resonance. ​ Figure (b) shows the planar radiation pattern of the antenna at the resonant point of the first resonance (2 GHz) in a plane (e.g., the xoz plane). At the resonant point of the first resonance, the maximum radiation direction of the antenna pattern is the top direction of the electronic device (e.g., the z direction).

[0260] like ​ As shown in (a), this is the three-dimensional radiation pattern of the antenna at the resonant point (3.6 GHz) of the second resonance. ​ Figure (b) shows the planar radiation pattern of the antenna at the resonant point of the second resonance (3.6 GHz) in a plane (e.g., the xoz plane). At the resonant point of the first resonance, the maximum radiation direction of the antenna pattern is the top direction of the electronic device (e.g., the z-direction).

[0261] It should be understood that the maximum radiation direction of the radiation pattern generated by the first and second resonances of the antenna is the top direction of the electronic device (e.g., the z-direction), which meets the requirement of angular alignment between the transmitting and receiving frequency bands in satellite communication (e.g., the angle difference between the maximum radiation directions of the radiation patterns generated by the first and second resonances is less than 30°), and can improve the accuracy of the antenna when transmitting electrical signals.

[0262] And, since the maximum radiation direction of the pattern produced by the antenna at the first resonance and the second resonance is the top direction (for example, the z direction) of the electronic device, the user can obtain a good user experience without changing the posture of holding the electronic device 10 when using the electronic device to perform satellite navigation or communication in the first frequency band.

[0263] ​ is another schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0264] As shown in ​ The first ground control circuit 231 can include a first switch 261, which is used to switch the coupling connection state between the first feed circuit 231 and the first connection point 241. In an embodiment, the first end of the first switch 261 is coupled to the first connection point 241, and the second end of the first switch 261 is coupled to other electronic elements in the first feed circuit 231.

[0265] It should be understood that, for the sake of brevity of discussion, in the embodiments of the present application, only the case that no other electronic elements are arranged between the first switch 241 and the first connection point 241 is taken as an example for illustration, and in actual production or design, the first switch 241 can also be arranged at any position in the first ground control circuit 231, and the embodiments of the present application do not limit this, and the switches arranged in other ground control circuits in the embodiments of the present application can also be understood accordingly.

[0266] The second ground control circuit 232 can include a second switch 262, which is used to switch the coupling connection state between the second feed circuit 232 and the second connection point 242. The first end of the second switch 262 is coupled to the second connection point 242, and the second end of the second switch 262 is coupled to other electronic elements in the second feed circuit 232.

[0267] It should be understood that, in the electronic device 10 shown in ​ The first ground control circuit 231 and the second ground control circuit 232 are filter circuits, which switch the first circuit state and the second circuit state through the high-impedance state and the low-impedance state of the filter circuits. While in the electronic device 10 shown in ​ The first switch 261 and the second switch 262 can be used to realize the switching of the first circuit state and the second circuit state.

[0268] In an embodiment, the first ground control circuit 231 can further include a first electronic element 251. The first electronic element 251 is coupled to the floor 300 and the first connection point 241, and the first switch 261 is used to switch the coupling connection state between the first electronic element 251 and the first connection point 241.

[0269] The second ground control circuit 232 can further include a second electronic element 252. The second electronic element 252 is coupled to the ground plane 300 and the second connection point 242, and the second switch 262 is used to switch the coupling state between the second electronic element 252 and the second connection point 242.

[0270] It should be understood that the first electronic element 251 and the second electronic element 252 can be used to change the radiation characteristics (e.g., the resonant point frequency) of the antenna at the second resonance.

[0271] ​ is a schematic diagram of another electronic device 10 provided by an embodiment of the present application.

[0272] As shown in ​ The antenna 200 further includes a second feeding circuit 222.

[0273] The first radiator 210 includes a second feeding point 212. The second feeding point 212 is located between the second position 202 and the second connection point 242, and the second feeding circuit 222 is coupled to the second feeding point 212.

[0274] In an embodiment, the second feeding circuit 222 can be used to feed signals of the first frequency band and the second frequency band. In an embodiment, the antenna 200 can be used as a satellite antenna, the first frequency band can correspond to the transmission frequency band of the satellite antenna, and the second frequency band can correspond to the reception frequency band of the satellite antenna.

[0275] It should be understood that, since the first feeding point 211 and the second feeding point 212 are located on the two sides of the first radiator 210 respectively, the first feeding point 211 and the second feeding point 212 feed electrical signals respectively, and the antenna 200 can generate a first directional pattern and a second directional pattern, which are different. Different directional patterns can be understood as different maximum radiation directions of the directional patterns.

[0276] In an embodiment, when the directional patterns are different, the electronic device 10 can determine whether the antenna 200 is fed by the first feeding point 211 or the second feeding point 212 according to the strength of the electrical signal received by the antenna 200. For example, when the second resonance corresponds to the reception frequency band, in the working frequency band, the strength of the electrical signal received by the antenna 200 is -70 dB when the first feeding point 211 is used as the feeding point, and the strength of the electrical signal received by the antenna 200 is -80 dB when the second feeding point 212 is used as the feeding point. Since the strength of the electrical signal received by the antenna 200 is larger when the first feeding point 211 is used as the feeding point, the first feeding point 211 is used as the feeding point to improve the communication performance of the electronic device 10.

[0277] In one embodiment, a ratio of a distance between the first feed point 211 and the center of the first radiator 210 to a distance between the second feed point 212 and the center of the first radiator 210 is greater than or equal to 0.9 and less than or equal to 1.1. In one embodiment, the first radiator 210 further includes a third connection point 243 and a fourth connection point 244, the third connection point 243 is located between the first position and the first connection point 241, and the fourth connection point 244 is located between the second position 202 and the second connection point 242.

[0278] In one embodiment, the antenna 200 further includes a third ground control circuit 233 and a fourth ground control circuit 234. A first end of the third ground control circuit 233 is coupled with the third connection point 243, and a second end of the third ground control circuit 233 is coupled with the ground plane 300. A first end of the fourth ground control circuit 234 is coupled with the fourth connection point 244, and a second end of the fourth ground control circuit 234 is coupled with the ground plane 300.

[0279] In one embodiment, the third ground control circuit 233 includes a first switch 261, and the first switch 261 is used to switch a coupling connection state between the third ground control circuit 233 and the third connection point 243. The fourth ground control circuit 234 includes a second switch 262, and the second switch 262 is used to switch a coupling connection state between the fourth ground control circuit 234 and the fourth connection point 244.

[0280] It should be understood that the third ground control circuit 233 and the fourth ground control circuit 234 can be used to adjust the maximum radiation direction of the directional pattern generated by the antenna 200, so that the first directional pattern generated by the electrical signal fed by the first feed point 211 and the second directional pattern generated by the electrical signal fed by the second feed point 212 cover a larger area, and the antenna 200 has good radiation performance in a large range deviating from the direction of the top of the electronic device (for example, the z direction).

[0281] When the antenna 200 is fed by the electrical signal of the first feed point 211, the first switch 261 is in an open state, the second switch 262 is in a conductive state, the third ground control circuit 233 is not electrically connected with the third connection point 243, and the fourth ground control circuit 234 is electrically connected with the fourth connection point 244. When the first feed point 211 is fed by the electrical signal, the maximum radiation direction of the first directional pattern is adjusted by the third ground control circuit 233.

[0282] When the antenna 200 is fed by the electrical signal of the second feed point 212, the first switch 261 is in an open state, the second switch 262 is in a conductive state, the third ground control circuit 233 is not electrically connected with the third connection point 243, and the fourth ground control circuit 234 is electrically connected with the fourth connection point 244. When the second feed point 212 is fed by the electrical signal, the maximum radiation direction of the second directional pattern is adjusted by the third ground control circuit 233.

[0283] In one embodiment, the first feeding circuit includes a first radio frequency channel and a second radio frequency channel. The first radio frequency channel is configured to generate the first resonance, and the second radio frequency channel is configured to generate the second resonance.

[0284] In one embodiment, the second feeding circuit includes a third radio frequency channel and a fourth radio frequency channel. The third radio frequency channel is configured to feed the signal of the first frequency band, and the fourth radio frequency channel is configured to feed the signal of the second frequency band.

[0285] ​ is a simulation result diagram of the antenna shown in FIG. 8. In the diagram, ​ is a simulation result diagram of the antenna shown in FIG. 8. In the diagram, ​ is a simulation result diagram of the antenna shown in FIG. 8. In the diagram, ​ is a simulation result diagram of the antenna shown in FIG. 8. In the diagram, ​ is a simulation result diagram of the antenna shown in FIG. 8. In the diagram, ​ is a simulation result diagram of the antenna shown in FIG. 8. In the diagram, ​ is a simulation result diagram of the antenna shown in FIG. 8. In the diagram, ​ is a simulation result diagram of the antenna shown in FIG. 8. In the diagram, ​ is a simulation result diagram of the antenna shown in FIG. 8. In the diagram, ​ is a simulation result diagram of the antenna shown in FIG. 8. In the diagram,

[0286] It should be understood that, for the sake of brevity of discussion, the top direction of the electronic device is taken as the z direction for example in the embodiments of the present application. In the diagrams, ​ In the diagrams of the directional patterns shown in FIGS. 8-11, only the directional pattern in the xoz plane is shown, wherein the horizontal coordinate is the angle and the vertical coordinate is the angle θ(°) with the z axis.

[0287] As shown in FIGS. 8 and 9, when the antenna is fed with the electrical signal by the first feeding point, the maximum radiation directions of the directional patterns generated by the first resonance and the second resonance of the antenna are substantially the same, satisfying the requirement that the transmission frequency band and the reception frequency band satisfy angle alignment in satellite communication, and the accuracy of the antenna in transmitting the electrical signal can be improved. ​ and ​ As shown in FIGS. 10 and 11, when the antenna is fed with the electrical signal by the second feeding point, the maximum radiation directions of the directional patterns generated by the first resonance and the second resonance of the antenna are substantially the same, satisfying the requirement that the transmission frequency band and the reception frequency band satisfy angle alignment in satellite communication, and the accuracy of the antenna in transmitting the electrical signal can be improved.

[0288] As shown in FIGS. 10 and 11, when the antenna is fed with the electrical signal by the second feeding point, the maximum radiation directions of the directional patterns generated by the first resonance and the second resonance of the antenna are substantially the same, satisfying the requirement that the transmission frequency band and the reception frequency band satisfy angle alignment in satellite communication, and the accuracy of the antenna in transmitting the electrical signal can be improved. ​ and ​ As shown in FIGS. 10 and 11, when the antenna is fed with the electrical signal by the second feeding point, the maximum radiation directions of the directional patterns generated by the first resonance and the second resonance of the antenna are substantially the same, satisfying the requirement that the transmission frequency band and the reception frequency band satisfy angle alignment in satellite communication, and the accuracy of the antenna in transmitting the electrical signal can be improved.

[0289] When the antenna is fed with an electrical signal by the first feeding point, the maximum radiation direction of the generated directional diagram is approximately located at When the antenna is fed with an electrical signal by the second feeding point, the maximum radiation direction of the generated directional diagram is approximately located at Since the maximum radiation direction of the directional diagram generated by the electrical signal fed by the first feeding point 211 is different from the maximum radiation direction of the directional diagram generated by the electrical signal fed by the second feeding point 212, the two directional diagrams can make the antenna have good radiation characteristics in the range of θ less than 60°.

[0290] ​ is a schematic diagram of another electronic device 10 provided by an embodiment of the present application.

[0291] As shown in ​ , the frame 11 can include a third position 203, a first position 201, a second position 202 and a fourth position 204 arranged in sequence. The frame 11 is provided with a first gap and a second gap at the first position 201 and the second position 202, respectively. The frame 11 is coupled and linked with the floor 300 at the third position 203 and the fourth position 204.

[0292] The antenna 200 includes a first radiator 210, a second radiator 218 and a third radiator 219. The first radiator 210 is a conductive part of the frame 11 between the first position 201 and the second position 202. The second radiator 218 is a conductive part of the frame 11 between the first position 201 and the third position 203. The third radiator 219 is a conductive part of the frame 11 between the fourth position 204 and the second position 202.

[0293] The antenna 200 further includes a first feeding circuit 221, a second feeding circuit 222, a third feeding circuit 223 and a fourth feeding circuit 224. The third feeding circuit 223 and the fourth feeding circuit 224 are used to feed an electrical signal of a first frequency band, and the first feeding circuit 221 and the second feeding circuit 222 are used to feed an electrical signal of a second frequency band. The first radiator 210 includes a first feeding point 211 and a second feeding point 212, the second radiator 218 includes a third feeding point 213, and the third radiator 219 includes a fourth feeding point 214. The first feeding circuit 221 is coupled with the first feeding point 211. The second feeding circuit 222 is coupled with the second feeding point 212. The third feeding circuit 223 is coupled with the third feeding point 213. The fourth feeding circuit 224 is coupled with the fourth feeding point 214.

[0294] In an embodiment, the third feeding circuit 223 and the fourth feeding circuit 224 can be used to generate a first resonance (which can correspond to the first frequency band). The first feeding circuit 221 and the second feeding circuit 222 can be used to generate a second resonance (which can correspond to the second frequency band).

[0295] It should be understood that, ​ In the illustrated electronic device 10, the example is taken where the first feed circuit 221 includes a first radio frequency (RF) channel and a second RF channel, and the second feed circuit 222 includes a third RF channel and a fourth RF channel, and the first radiator 210 simultaneously generates a first resonance and a second resonance. ​ In the electronic device 10 shown, a second resonance is generated by a first radiator 210, and a first resonance is generated by a second radiator 218 and a third radiator 219.

[0296] Similarly, electronic device 10 can determine the feed point of antenna 200 based on the strength of the signal received by antenna 200. For example, in the receiving frequency band corresponding to the second resonance, when the first feed point 211 is used as the feed point, the strength of the received electrical signal is -70dB, and when the second feed point 212 is used as the feed point, the strength of the received electrical signal is -80dB. Since the strength of the electrical signal received by antenna 200 is greater when the first feed point 211 and the third feed point 213 are used as feed points, the first feed point 211 and the third feed point 213 are used as feed points to improve the communication performance of electronic device 10.

[0297] When the antenna 200 is fed with electrical signals from the first feed point 211 and the third feed point 213, the first switch is in the open state, the second switch is in the closed state, the third grounding control circuit 233 is not electrically connected to the third connection point 243, and the fourth grounding control circuit 234 is electrically connected to the fourth connection point 244.

[0298] When the antenna 200 is fed with electrical signals from the second feed point 212 and the fourth feed point 214, the first switch is in the open state, the second switch is in the closed state, the third grounding control circuit 233 is not electrically connected to the third connection point 243, and the fourth grounding control circuit 234 is electrically connected to the fourth connection point 244.

[0299] In one embodiment, a grounding point 215 may also be included between the first position 201 and the second position 202, and the frame 11 is coupled to the floor 300 at the grounding point 215, such as... ​ As shown.

[0300] It should be understood that in electronic device 10, satellite communication and cellular networks can share the same radiator to generate resonance when they are not operating simultaneously. In this case, ​The antenna 200 shown is more suitable for the internal layout of the electronic device 10. When the electronic device 10 does not perform satellite communication through the antenna 200, the first antenna is formed by the first radiating element and the first feed circuit 221 between the first position 201 and the grounding point 215, the second antenna is formed by the first radiating element and the second feed circuit 222 between the second position 202 and the grounding point 215, the third antenna is formed by the second radiating element 218 and the third feed circuit 223, and the fourth antenna is formed by the third radiating element 219 and the fourth feed circuit 224. At least part of the first antenna, the second antenna, the third antenna, and the fourth antenna can operate in a cellular network.

[0301] In an embodiment, the grounding point 215 can be located in the central region of the first radiating element 210. In an embodiment, the grounding point 215 can be electrically connected to the ground plate 300 by a grounding member (e.g., a metal spring, a metal web, etc.).

[0302] It should be understood that when the first radiating element 210 generates the first resonance, the central region includes a large current point, and the arrangement of the grounding point in this region does not affect the current distribution on the first radiating element 210, and thus does not affect the first resonance. When the first radiating element 210 between the first position and the first connection point 241 and the second position and the second connection point 242 generates the second resonance, the arrangement of the grounding point in this region does not affect the current distribution on the first radiating element 210, and thus does not affect the second resonance.

[0303] In an embodiment, the electronic device further includes a middle frame including a bezel 11 and a middle plate, wherein the middle plate is electrically connected to the ground plate 300. In an embodiment, the bezel 11 is connected to the middle plate through a first webbing structure, and the connection of the first webbing structure to the bezel 11 is located between the first position 201 and the second position 202 of the bezel, and the connection of the first webbing structure to the bezel 11 is located between the first connection point 241 and the second connection point 242 of the first radiating element 210.

[0304] ​ is ​ is a simulation result diagram of the antenna shown in FIG. 8. ​ is ​ is a S parameter diagram of the antenna shown in FIG. 8. ​ is ​ is a simulation result diagram of the system efficiency of the antenna shown in FIG. 8. ​ is ​ is a radiation pattern of the antenna shown in FIG. 8 at the resonance point (2 GHz) of the first resonance when the third feed point is fed with an electrical signal. ​ is ​ is a radiation pattern of the antenna shown in FIG. 8 at the resonance point (3.6 GHz) of the second resonance when the first feed point is fed with an electrical signal. ​ is ​The antenna shown is a radiation pattern at the first resonance point (2GHz) when an electrical signal is fed into it from the fourth feed point. ​ yes ​ The radiation pattern of the antenna at the second resonance point (3.6 GHz) when an electrical signal is fed into the second feed point.

[0305] like ​ As shown, when the antenna is fed with an electrical signal from the third feed point (or the fourth feed point) (S11), resonance (first resonance) can be generated near 2 GHz. When the antenna is fed with an electrical signal from the first feed point (or the second feed point) (S22), resonance (first resonance) can be generated near 2 GHz. And the isolation (S12) between the two feed points is greater than 10 dB.

[0306] like ​ As shown, the antenna exhibits good system efficiency in the first resonant frequency band (S1). The antenna also exhibits good system efficiency in the second resonant frequency band (S2).

[0307] It should be understood that, for the sake of brevity, this application uses the top direction of the electronic device as the z-direction as an example for illustration. ​ The radiation pattern shown only includes the radiation pattern within the xoz plane, where the horizontal axis represents the angle with the x-axis. The vertical axis represents the angle θ (°) with the z-axis.

[0308] like ​ and ​ As shown, when the antenna is fed with electrical signals from the third feed point and the first feed point, the maximum radiation directions of the radiation patterns generated by the antenna at the first resonance and the second resonance are approximately the same, which meets the requirement of angular alignment between the transmitting frequency band and the receiving frequency band in satellite communication, and can improve the accuracy of the antenna when transmitting electrical signals.

[0309] like ​ and ​ As shown, when the antenna is fed with electrical signals from the fourth feed point and the second feed point, the maximum radiation directions of the radiation patterns generated by the antenna at the first resonance and the second resonance are approximately the same, which meets the requirement of angular alignment between the transmitting frequency band and the receiving frequency band in satellite communication, and can improve the accuracy of the antenna when transmitting electrical signals.

[0310] When the antenna is fed with an electrical signal from the first feed point, the maximum radiation direction of the generated pattern is approximately located at... When the antenna is fed with an electrical signal from the second feed point, the maximum radiation direction of the resulting pattern is approximately located at... In the frequency band corresponding to the second resonance, the maximum radiation direction of the radiation pattern generated by the electrical signal fed in by the first feed point is different from the maximum radiation direction of the radiation pattern generated by the electrical signal fed in by the second feed point, and the two radiation patterns can make the antenna have good radiation characteristics in the range of θ less than 60°.

[0311] ​ is a schematic diagram of another electronic device 10 provided by an embodiment of the present application.

[0312] As shown in ​ The bezel 11 can include a fifth position 205, a third position 203, a first position 201, and a second position 202 arranged in sequence. The bezel 11 is provided with a first gap, a second gap, and a third gap at the first position 201, the second position 202, and the fifth position, respectively. The bezel 11 is coupled and linked with the floor 300 at the third position 203. In an embodiment, the fifth position 205 can be located at the first side 131.

[0313] The bezel 11 further includes the third position 203 and a second ground point 242. The second position 202 is located between the first position 204 and the third position 203. The second ground point 242 is located between the second position 202 and the third position 203.

[0314] The antenna 200 includes a first radiator 210 and a fourth radiator 270. The first radiator 210 is a conductive part of the bezel 11 between the first position 201 and the second position 202. The fourth radiator 270 is a conductive part of the bezel 11 between the third position 203 and the fifth position 205. The first end (the end close to the first position 201) and the second end (the end close to the second position 202) of the first radiator 210 are open ends. The first end (the end close to the third position 203) of the fourth radiator 270 is a ground end, and the second end is an open end (the end close to the fifth position 205).

[0315] The fourth radiator 270 is used to generate a first parasitic resonance, and the resonance point frequency of the first parasitic resonance is lower than the resonance point frequency of the second resonance generated by the first radiator 210.

[0316] When the first radiator 210 generates the second resonance by the line DM mode, the fourth radiator 270 can be excited to generate the first parasitic resonance. In an embodiment, when the feed point of the first radiator 210 is fed with an electrical signal, at the resonance point of the second resonance, the current on the first radiator 210 and the current on the fourth radiator 270 are in the same direction, which can extend the path of the current generated by the first radiator 210, obtain the effect of similar current arraying, and improve the directivity of the antenna 200. The directivity of the antenna 200 can be improved by the fourth radiator 270, and the energy radiated by the antenna 200 towards the top (for example, the z direction) of the electronic device 10 is increased, so that the user does not need to change the posture of holding the electronic device 10 to obtain a good user experience when using the electronic device 10 to perform satellite navigation or communication in the second frequency band.

[0317] It should be understood that ​ The electronic device 10 shown is only different from the electronic device 10 shown in the above-described embodiments in that the fourth radiator 270 is provided, and when the first radiator 210 generates resonance, the directivity of the antenna 200 can be improved by the fourth radiator 270. For the sake of brevity of the discussion, only the ​ The structure of the antenna 200 shown in which the fourth radiator 270 is added can be applied to any of the above-described embodiments.

[0318] In an embodiment, the fourth radiator 270 can further include a fifth connection point 245. The electronic device 10 further includes a first tuning circuit 271. The first tuning circuit 271 is coupled to the fifth connection point 245.

[0319] It should be understood that the first tuning circuit 271 can be used to adjust the resonance point frequency of the parasitic resonance generated by the fourth radiator 270, so that the fourth radiator 270 generates the first parasitic resonance and the second parasitic resonance. When the first radiator 210 also generates the first resonance by the line DM mode (for example, ​ 、 ​ 、 ​ 、 ​ In the antenna structure 200 shown, the first radiator 210 is used to generate the first resonance and the second resonance, and the fourth radiator 270 generates the second parasitic resonance, at the resonance point of the first resonance, the current on the first radiator 210 and the current on the fourth radiator 270 are in the same direction, which can extend the path of the current generated by the first radiator 210, obtain the effect of similar current arraying, and improve the directivity of the antenna 200 in the first frequency band.

[0320] Therefore, the first parasitic resonance and the second parasitic resonance generated by the fourth radiator 270 can extend the path of the current generated by the first radiator 210 in the first frequency band and the second frequency band, obtain the effect of similar current arraying, and improve the directivity of the antenna 200.

[0321] In one embodiment, the frequency difference between the resonance point of the second resonance and the resonance point of the first parasitic resonance is greater than 0 MHz and less than or equal to 200 MHz. In one embodiment, the frequency difference between the resonance point of the first resonance and the resonance point of the second parasitic resonance is greater than 0 MHz and less than or equal to 200 MHz.

[0322] It should be understood that when the frequency difference between the resonance point of the second resonance (the first resonance) and the resonance point of the first parasitic resonance (the second parasitic resonance) is greater than 0 MHz and less than or equal to 200 MHz, the feed point feeds in the electrical signal, and the proportion of the current on the fourth radiator 270 that is in the same direction as the current on the first radiator 210 at the resonance point of the second resonance (the first resonance) is greater, which can further improve the directivity of the antenna 200.

[0323] In one embodiment, the distance between the first radiator 210 and the fourth radiator 270 can be greater than or equal to one-tenth of the first wavelength and less than or equal to one-half of the first wavelength, and the first wavelength is the vacuum wavelength corresponding to the first frequency band.

[0324] It should be understood that since the vacuum wavelength and the medium wavelength (conduction wavelength) have a certain corresponding relationship, the equivalent dielectric constant of the medium arranged around the radiator can be calculated, and in the embodiments of the present application, it can be understood accordingly.

[0325] Correspondingly, the first radiator 210 can work in a half-wavelength mode, and the distance between the first radiator 210 and the fourth radiator 270 can be greater than or equal to one-fourth of the length L1 of the conductive part of the frame between the first position 201 and the second position 202 and less than or equal to the length L1 of the conductive part of the frame between the first position 201 and the second position 202.

[0326] It should be understood that when the distance between the first radiator 210 and the fourth radiator 270 is within the above range, the directivity of the antenna 200 is improved better. The distance between the first radiator 210 and the fourth radiator 270 can be understood as the distance between the center (geometric center) of the first radiator 210 and the center of the fourth radiator 270.

[0327] In one embodiment, the antenna 200 includes a second radiator 218. The second radiator 218 is a conductive part of the frame 11 between the first position 201 and the third position 203. The first end (the end close to the third position 203) of the second radiator 218 is a grounded end, and the second end (the end close to the first position 201) is an open end.

[0328] In one embodiment, the second radiator 218 is configured to generate a third parasitic resonance, and a resonance point frequency of the third parasitic resonance is higher than a resonance point frequency of the first resonance generated by the first radiator 210.

[0329] It should be understood that the radiation efficiency and system efficiency of the antenna 200 in the resonance frequency band of the first resonance can be improved by the second radiator 218, and the antenna 200 has better radiation characteristics in the first frequency band.

[0330] In one embodiment, the second radiator 218 can further include a sixth connection point 246. The electronic device 10 further includes a second tuning circuit 272. The second tuning circuit 272 is coupled to the sixth connection point 246.

[0331] It should be understood that the second tuning circuit 272 can be used to adjust the resonance point frequency of the parasitic resonance generated by the second radiator 218, so that the second radiator 218 generates a third parasitic resonance and a fourth parasitic resonance. When the first radiator 210 also generates the first resonance by the line DM mode, the second radiator 218 generates the third parasitic resonance, and a resonance point frequency of the third parasitic resonance is higher than a resonance point frequency of the first resonance, which can improve the radiation efficiency and system efficiency of the antenna 200 in the resonance frequency band of the first resonance. When the first radiator 210 also generates the second resonance by the line DM mode, the second radiator 218 generates the fourth parasitic resonance, and a resonance point frequency of the fourth parasitic resonance is higher than a resonance point frequency of the second resonance, which can improve the radiation efficiency and system efficiency of the antenna 200 in the resonance frequency band of the second resonance.

[0332] In one embodiment, the frequency difference between the resonance point of the third parasitic 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. In one embodiment, the frequency difference between the resonance point of the fourth parasitic 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.

[0333] It should be understood that because the end of the radiator on both sides of the first position 201 is an open end, the coupling between the first radiator 210 and the second radiator 218 is strong when the feed point feeds the electrical signal. Therefore, the resonance point of the parasitic resonance generated by the second radiator 218 and the resonance point of the resonance generated by the first radiator 210 have a certain frequency spacing. When the frequency difference between the resonance point of the third parasitic resonance (the fourth parasitic resonance) and the resonance point of the first resonance (the second resonance) 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) have better improvement.

[0334] In one embodiment, the length D2 of the edge frame between the fifth connection point 245 and the fifth position 205 and the length H2 of the edge frame between the fifth position 205 and the third position 203 satisfy: D2≤H2x30%. In one embodiment, D2≤H2x10%. In one embodiment, D2 is less than or equal to 3mm.

[0335] In one embodiment, the length D3 of the edge frame between the sixth connection point 246 and the first position 201 and the length H3 of the edge frame between the first position 201 and the third position 203 satisfy: D3≤H3x30%. In one embodiment, D3≤H3x10%. In one embodiment, D3 is less than or equal to 3mm.

[0336] It should be understood that the third connection point 243 can be arranged near the second position 202. The first end and the second end of the first radiator 210 are open ends. Near the open ends, the electric field is generally strong. The area with a strong electric field has better tuning performance.

[0337] In one embodiment, the edge frame 11 can further include a fourth position 204 and a sixth position 206, as shown in ​ The sixth position 206 can be located on the third edge 133. The first edge 131, the third edge 133 and the second edge 132 are angularly intersected. The edge frame 11 is provided with a gap at the sixth position 206. The edge frame 11 is coupled to the floor at the fourth position.

[0338] In one embodiment, the antenna 200 includes a fifth radiator 280. The first end (the end near the fourth position 204) of the fifth radiator 280 is a grounded end, and the second end (the end near the sixth position 206) is an open end.

[0339] In one embodiment, the fifth radiator 280 is used to generate a fifth parasitic resonance. The resonance point frequency of the fifth parasitic resonance is lower than the resonance point frequency of the second resonance generated by the first radiator 210.

[0340] When the first radiator 210 generates the second resonance by the DM mode, the fifth radiator 280 can be excited to generate the fifth parasitic resonance. In one embodiment, when the feed point of the first radiator 210 feeds in an electrical signal, at the resonance point of the second resonance, the current on the first radiator 210 and the current on the fifth radiator 280 are in the same direction. The path of the current generated by the first radiator 210 can be extended. The effect of the current group array can be obtained. The directivity of the antenna 200 can be further improved.

[0341] In one embodiment, the fifth radiator 280 can further include a seventh connection point 247. The electronic device 10 further includes a third tuning circuit 273. The third tuning circuit 273 is coupled to the seventh connection point 247.

[0342] It should be understood that the third tuning circuit 273 can be used to adjust the resonant point frequency of the parasitic resonance generated by the fifth radiator 280, so that the fifth radiator 280 generates the fifth parasitic resonance and the sixth parasitic resonance. When the first radiator 210 generates the first resonance by the line DM mode (for example, ​ 、 ​ 、 ​ 、 ​ In the antenna structure 200 shown, the first radiator 210 is used to generate the first resonance and the second resonance), the fourth radiator 270 generates the sixth parasitic resonance, and the current on the first radiator 210 and the current on the fourth radiator 270 are in the same direction at the resonant point of the first resonance. The path of the current generated by the first radiator 210 can be extended, the effect of the current array can be obtained, and the directivity of the antenna 200 in the first frequency band can be improved.

[0343] Therefore, the fifth parasitic resonance and the sixth parasitic resonance generated by the fifth radiator 280 can extend the path of the current generated by the first radiator 210 in the first frequency band and the second frequency band, obtain the effect of the current array, and improve the directivity of the antenna 200.

[0344] In one embodiment, the difference between the resonant point of the second resonance and the resonant point of the fifth parasitic resonance is greater than 0 MHz and less than or equal to 200 MHz. In one embodiment, the difference between the resonant point of the first resonance and the resonant point of the sixth parasitic resonance is greater than 0 MHz and less than or equal to 200 MHz.

[0345] It should be understood that when the difference between the resonant point of the second resonance (the first resonance) and the resonant point of the fifth parasitic resonance (the sixth parasitic resonance) is greater than 0 MHz and less than or equal to 200 MHz, the feed point feeds the electrical signal, and at the resonant point of the second resonance (the first resonance), the proportion of the current generated on the fifth radiator 280 and the current on the first radiator 210 in the same direction is greater, which can further improve the directivity of the antenna 200.

[0346] In one embodiment, the length D4 of the frame between the seventh connection point 247 and the sixth position 206 and the length H4 of the frame between the fourth position 204 and the sixth position 206 satisfy: D4≤H4×30%. In one embodiment, D4≤H4×10%. In one embodiment, D4 is less than or equal to 3 mm.

[0347] ​ is a schematic diagram of an electronic device 10 provided by an embodiment of the present application.

[0348] It should be understood that the satellite communication is not performed at the same time as the cellular communication (or the short-range communication). In the above embodiment, it is shown that when the electronic device 10 performs the satellite communication, the first resonance and the second resonance can be generated by the first radiator (or the first resonance and the second resonance are generated by the first radiator, the second radiator or the third radiator shown in ​ or ​ so that the antenna can have better radiation characteristics in the first frequency band and the second frequency band. When the electronic device 10 does not perform the satellite communication, the above radiators can be reused as the radiators of the antenna for the cellular communication (or the short-range communication).

[0349] In the above embodiment, the frame 11 is provided with the gap at the first position 201, the second position 202, the fifth position 205 and the sixth position 206, and is coupled to the floor 300 at the grounding point 215, the third position 203 and the fourth position 204.

[0350] As shown in ​ , the conductor part of the frame between the grounding point 215 and the first 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 embodiment. In an embodiment, a tuning circuit 281 can be used to adjust the resonance point frequency of the resonance generated by the first antenna. In an embodiment, the tuning circuit 281 can be the first grounding circuit 231 or the third grounding circuit 233 in the above embodiment, which can be used to switch the band electronic element electrically connected between the radiator 301 and the floor 300 to adjust the resonance point frequency of the resonance generated by the first antenna.

[0351] In an embodiment, the conductor part of the frame between the first position 201 and the third position 203 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 third feed circuit 223 in the above embodiment. In an embodiment, a tuning circuit 282 can be used to adjust the resonance point frequency of the resonance generated by the second antenna. In an embodiment, the tuning circuit 281 can be the second tuning circuit 272 in the above embodiment.

[0352] In an embodiment, the conductor part of the frame between the third position 203 and the fifth position 205 can be used as a radiator 303. The radiator 303 forms a third antenna with a feed circuit 313. In an embodiment, a tuning circuit 283 can be used to adjust the resonance point frequency of the resonance generated by the third antenna. In an embodiment, the tuning circuit 283 can be the first tuning circuit 271 in the above embodiment.

[0353] In one embodiment, the conductor part of the frame between the second position 202 and the fourth position 204 can serve as a radiator 304. The radiator 304 forms a fourth antenna with the feed circuit 314. In one embodiment, the tuning circuit 284 can be used to adjust the resonant point frequency of the resonance generated by the fourth antenna.

[0354] In one embodiment, the conductor part of the frame between the fourth position 204 and the sixth position 206 can serve as a radiator 305. The radiator 305 forms a fifth antenna with the feed circuit 315. In one embodiment, the tuning circuit 285 can be used to adjust the resonant point frequency of the resonance generated by the fifth antenna. In one embodiment, the tuning circuit 285 can be the third tuning circuit 273 in the above-described embodiments.

[0355] It should be understood that the radiator 301, the radiator 302, the radiator 303, the radiator 304 and the radiator 305 described in the embodiments of the present application have one end as a grounded end and the other end as an open end, and the first antenna, the second antenna, the third antenna, the fourth antenna and the fifth antenna can all work in a quarter wavelength mode. In the quarter wavelength mode, the current and the electric field on the radiator are in the same direction, and the current large point is near the grounded end and the electric field large point is near the open end.

[0356] 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.

[0357] 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.

[0358] 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.

[0359] 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.

[0360] In one embodiment, the operating frequency band of the fifth antenna can include at least part of the frequency band in the mid band, and / or at least part of the frequency band in the high band, for example, B1 (1920MHz-1980MHz), B3 (1710MHz-1785MHz) and B7 (2500MHz-2570MHz) in LTE.

[0361] It should be understood that in the above embodiments, only the allocation of the operating frequency bands of some 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 the low band (LB), for example, B5, B8 and B28 in LTE.

[0362] In one embodiment, the grounding at the grounding point 215 can be achieved by the first grounding member 321 (for example, a metal spring), as shown. The width of the first grounding member 331 connected with the frame is greater than or equal to 2mm and less than or equal to 8mm. ​

[0363] It should be understood that the grounding structure arranged at the grounding point 215 can make the first antenna and the fourth antenna have better isolation. With the increase of the width of the first grounding member 321 connected with the frame, the isolation between the first antenna and the fourth antenna is improved.

[0364] In one embodiment, the frame 11 is directly electrically connected or electrically connected through a 0-ohm resistor at the second connection point 242 or the fourth connection point 244 with the floor 300, which can further improve the isolation between the first antenna and the fourth antenna.

[0365] In one embodiment, the grounding at the third position 203 can be achieved by the second grounding member 322 (for example, a metal spring). The width of the second grounding member 332 connected with the frame is greater than or equal to 2mm and less than or equal to 12mm.

[0366] It should be understood that the grounding structure arranged at the third position 203 can make the second antenna and the third antenna have better isolation. With the increase of the width of the second grounding member 332 connected with the frame, the isolation between the second antenna and the third antenna is improved.

[0367] In one embodiment, the grounding at the fourth position 204 can be achieved by the third grounding member 323 (for example, a metal spring). The width of the third grounding member 333 connected with the frame is greater than or equal to 1mm and less than or equal to 20mm.

[0368] ​It should be understood that the ground structure at the fourth position 204 can make the fourth antenna and the fifth antenna have better isolation. As the width of the connection of the third ground member 333 and the frame increases, the isolation between the fourth antenna and the fifth antenna is improved.

[0369] In one embodiment, the length R1 of the radiator 301 (the length of the conductor portion of the frame between the ground point 215 and the first position 202) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1x35%≤R2≤L1x60%.

[0370] In one embodiment, the length R2 of the radiator 302 (the length of the conductor portion of the frame between the first position 201 and the third position 203) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1x35%≤R2≤L1x60%.

[0371] In one embodiment, the length R3 of the radiator 303 (the length of the conductor portion of the frame between the third position 203 and the fifth position 205) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1x30%≤R3≤L1x55%.

[0372] In one embodiment, the length R4 of the radiator 304 (the length of the conductor portion of the frame between the second position 202 and the fourth position 204) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1x40%≤R4≤L1x65%.

[0373] In one embodiment, the length R5 of the radiator 305 (the length of the conductor portion of the frame between the fourth position 204 and the sixth position 206) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1x40%≤R4≤L1x65%.

[0374] 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: floor; The frame includes a first position and a second position, wherein a first gap and a second gap are respectively opened at the first position and the second position; Antenna, the antenna comprising: A first radiator and a first feeding circuit, wherein the first radiator is a conductive portion of the frame between the first position and the second position, the first radiator includes a first feeding point, and the first feeding circuit is coupled to the first feeding point for feeding in electrical signals of a first frequency band and a second frequency band. A first grounding control circuit and a second grounding control circuit, wherein the first radiator includes a first connection point and a second connection point, the first connection point is located between the first position and the second connection point, the first feed point is located between the first position and the first connection point, a first end of the first grounding control circuit is coupled to the first connection point, a second end of the first grounding control circuit is coupled to the ground, a first end of the second grounding circuit is coupled to the second connection point, and a second end of the second grounding circuit is coupled to the ground; Wherein, the distance between the first power supply point and the first position is less than or equal to 5mm; The ratio of the distance between the first connection point and the second connection point to the length of the first radiator is greater than or equal to one-third and less than or equal to three-fifths; The first radiator is used to generate a first resonance corresponding to the first frequency band, and the first radiator, the first grounding control circuit and the second grounding control circuit are used to generate a second resonance corresponding to the second frequency band, wherein the resonant frequency of the second resonance is higher than the resonant frequency of the first resonance.

2. The electronic device according to claim 1, 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 current on the first radiator between the first end of the first radiator and the first connection point is in the same direction as the current on the first radiator between the second end of the first radiator and the second connection point. The first end of the first radiator is one end of the first radiator at the first position, and the second end of the first radiator is one end of the first radiator at the second position.

3. The electronic device according to claim 1, characterized in that, At the resonance point of the first resonance, the central region of the first radiator includes a point of large current. At the resonant point of the second resonance, the first current region and the second current region include points with large currents, the first current region includes the first connection point, and the second current region includes the second connection point.

4. The electronic device according to claim 1, characterized in that, The first grounding control circuit or the second grounding control circuit includes at least one of the following circuits: A filter circuit, wherein the filter circuit is in an off state in the first frequency band and in a conducting state in the second frequency band; A switching circuit, comprising a first switch, wherein the switch is in an off state in a first frequency band and in an on state in a second frequency band.

5. The electronic device according to claim 1, characterized in that, The ratio between the resonant frequency of the second resonance and the resonant frequency of the first resonance is greater than 1 and less than or equal to 3.

6. The electronic device according to claim 1, characterized in that, The ratio between the resonant frequency of the second resonance and the resonant frequency of the first resonance is greater than or equal to 1.5 and less than or equal to 2.

5.

7. The electronic device according to claim 1, characterized in that, The ratio of the distance between the first connection point and the center of the first radiator to the distance between the second connection point and the center of the first radiator is greater than or equal to 0.9 and less than or equal to 1.

1.

8. The electronic device according to claim 1, characterized in that, The first power supply circuit includes a first radio frequency channel and a second radio frequency channel. The first radio frequency channel is used to feed in signals of the first frequency band, and the second radio frequency channel is used to feed in signals of the second frequency band.

9. The electronic device according to claim 1, characterized in that, The first radiator further includes a third connection point, which is located between the second position and the second connection point; The antenna also includes a tuning circuit, a first end of which is coupled to the third connection point, and a second end of which is coupled to the ground plane.

10. The electronic device according to claim 1, characterized in that, The antenna also includes a second feeding circuit; The first radiator includes a second feed point located between the second position and the second connection point. The second feed circuit is coupled to the second feed point and is used to feed in electrical signals of the first frequency band and the second frequency band.

11. The electronic device according to claim 10, characterized in that, The first radiator further includes a third connection point and a fourth connection point, wherein the third connection point is located between the first position and the first connection point, and the fourth connection point is located between the second position and the second connection point; The antenna further includes a third grounding control circuit and a fourth grounding control circuit. The first end of the third grounding control circuit is coupled to the third connection point, and the second end of the third grounding control circuit is coupled to the ground. The first end of the fourth grounding control circuit is coupled to the fourth connection point, and the second end of the fourth grounding control circuit is coupled to the ground. The third grounding control circuit includes a second switch, which is used to switch the coupling connection state between the third grounding control circuit and the third connection point. The fourth grounding control circuit includes a third switch, which is used to switch the coupling connection state between the fourth grounding control circuit and the fourth connection point.

12. The electronic device according to claim 11, characterized in that, Based on the electrical signals of the first frequency band and the second frequency band fed into the first feed point, the second switch is in the open state and the third switch is in the closed state; Based on the electrical signals of the first frequency band and the second frequency band fed into the second feed point, the second switch is in the on state, and the third switch is in the off state.

13. The electronic device according to claim 10, characterized in that, The second power supply circuit includes a third radio frequency channel and a fourth radio frequency channel. The third radio frequency channel is used to feed in signals from the first frequency band, and the fourth radio frequency channel is used to feed in signals from the second frequency band.

14. The electronic device according to claim 10, characterized in that, The ratio of the distance between the first feed point and the center of the first radiator to the distance between the second feed point and the center of the first radiator is greater than or equal to 0.9 and less than or equal to 1.

1.

15. The electronic device according to claim 1, characterized in that, The antenna is a satellite antenna, the first frequency band is the transmitting frequency band of the satellite antenna, and the second frequency band is the receiving frequency band of the satellite antenna.

16. The electronic device according to any one of claims 1 to 15, characterized in that, The electronic device further includes a mid-frame, which includes the frame and a mid-plate, wherein the mid-plate is electrically connected to the floor. The frame and the middle plate are connected by a first connecting rib structure, and the connection between the first connecting rib structure and the frame is located between the first position and the second position; and the connection between the first connecting rib structure and the frame is located between the first connection point and the second connection point of the first radiator.

Images