Electronic device

Abstract

The present application provides an electronic device. The electronic device comprises a frame, a first radiator, and a first feed source. The first radiator is formed by a part of the frame, or the first radiator is fixed on the inner side of the frame. The first radiator is used for supporting satellite frequency band communication and cellular medium-to-high frequency band communication. A satellite frequency band comprises one or more of a Beidou short message frequency band, a satellite communication frequency band, and a Satellite Network frequency band. The first radiator comprises a first end portion, the first radiator has no grounding point, the first radiator is provided with a first feed point, the distance between the first feed point and the first end portion is less than or equal to a quarter of the length of the first radiator, and the first feed source is electrically connected to the first feed point. The first radiator of the present application can be used for supporting satellite frequency band communication and cellular medium-to-high frequency band communication, and the antenna performance is good.

Description

Electronic device

[0001] The present application claims priority to the Chinese patent application No. 202411403092.8, filed on September 30, 2024, 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 development of mobile phones, more and more mobile phones are equipped with satellite communication technology to meet the use needs of users. Since the mobile phone needs to align the directional diagram of the satellite antenna with the satellite when performing satellite communication, the satellite antenna in the mobile phone is usually arranged on the top of the mobile phone to meet the communication needs of the satellite antenna. However, the space on the top of the mobile phone is compact at present, and the space for arranging the satellite antenna is limited, and the arrangement of the satellite antenna also occupies the arrangement space of other antennas such as cellular antennas, resulting in that the sizes of the satellite antenna and the cellular antenna are both small, which affects the performance of the antennas. SUMMARY

[0004] The embodiments of the present application provide an electronic device, which aims to provide an electronic device with good performance of satellite antenna and cellular antenna.

[0005] The present application provides an electronic device. The electronic device comprises a frame, a first radiator and a first feed source. The first radiator is formed by a part of the frame or is fixed to the inner side of the frame. The first radiator is used to support satellite frequency band communication and cellular medium-high frequency band communication. The satellite frequency band comprises one or more of Beidou short message frequency band, satellite communication frequency band and star network frequency band. The first radiator comprises a first end portion. The first radiator does not have a grounding point. The first radiator is provided with a first feed point. The distance between the first feed point and the first end portion is less than or equal to one quarter of the length of the first radiator. The first feed source is electrically connected to the first feed point.

[0006] It can be understood that the satellite antenna is usually arranged on the top of the electronic device in general electronic devices to facilitate the satellite communication. However, on the one hand, the top space of the electronic device is limited, which makes the satellite antenna also occupy the layout space of the cellular antenna on the top, resulting in that the sizes of the satellite antenna and the cellular antenna are both small, affecting the performance of the antennas. Meanwhile, the space mutual coupling problem between the satellite antenna and the cellular antenna also affects the performance of the antennas. The first radiator in the embodiment can be used to support satellite communication and cellular communication at the same time, that is, the satellite antenna and the cellular antenna can share the same radiator for communication, realizing the satellite antenna and the cellular antenna sharing the same body, so that the top space of the electronic device can be effectively saved, the other layout architecture requirements of the electronic device can be met, the performance of the electronic device can be improved, and the user experience can be improved.

[0007] Secondly, compared with the satellite antenna in general antenna devices having a grounding point, in order to meet the high efficiency requirement of the satellite antenna, an adjusting circuit needs to be additionally arranged to improve the antenna efficiency and meet the satellite frequency band communication requirement. In the embodiment, the first radiator is arranged as a floating radiator, the first radiator has no grounding point and has high antenna efficiency, so that the communication requirement of the satellite antenna can be met while the miniaturized arrangement of the antenna device is considered and the internal space of the electronic device is saved.

[0008] In addition, compared with the general satellite antenna, the performance requirement (such as high antenna efficiency, wide beam, etc.) of the satellite antenna needs to be met, which needs to be symmetrically arranged on the top of the electronic device, grounded at the middle position of the antenna, and the first adjusting circuit is arranged at the part close to the feed point to adjust the antenna aperture, and the second adjusting circuit is arranged at the end of the antenna away from the feed point to improve the antenna efficiency. This makes the circuit board need to arrange the adjusting circuit and the feed source at the corresponding positions of the antenna to meet the circuit arrangement requirement of the satellite antenna, the positions of the adjusting circuit and the feed source are relatively dispersed, resulting in that the size of the circuit board is large and the internal space of the electronic device is occupied more. In the embodiment, the first radiator is a floating antenna radiator, and the first feed source can be fed at the end (that is, the first end portion in the embodiment) of the first radiator. The antenna efficiency and circular polarization gain are both high, and the beam is wide, which can meet the antenna performance requirement of the satellite antenna. Meanwhile, the first feed source, the first adjusting circuit and the second adjusting circuit can be arranged close to the same end of the first radiator, so that the circuit board can arrange the first feed source, the first adjusting circuit and the second adjusting circuit in a centralized manner, thereby effectively reducing the size of the circuit board and saving the internal space of the electronic device.

[0009] In a possible implementation, the electronic device further includes a first matching circuit and a first adjusting circuit, the first matching circuit is electrically connected between the first feed source and the first feed point, and the electronic device further includes a first connection point and a second connection point, the first connection point is electrically connected between the first matching circuit and the first feed point, and the second connection point is electrically connected between the first matching circuit and the first feed source. The first adjusting circuit includes a first switch assembly and at least one first selection branch, one end of the first selection branch is electrically connected to the first connection point through the first switch assembly, and the other end is electrically connected to the second connection point. The first adjusting circuit is configured to selectively connect any one or more first selection branches in parallel with the first matching circuit through the first switch assembly, or disconnect all first selection branches from the first connection point through the first switch assembly, so as to switch the operating frequency band of the first radiator.

[0010] It can be understood that, compared with the general antenna device, the matching circuit is electrically connected at the position close to the feed point of the radiator, and is grounded through the matching circuit, so as to adjust the operating frequency band of the radiator by adjusting the aperture of the antenna. However, the frequency band switching can only be switched between adjacent frequency bands, that is, only small-span frequency band switching can be realized, the resonant frequency of the radiator is fine-tuned, and the radiator cannot cover the MHB main set frequency band and the satellite frequency band at the same time. Even if the radiator can work in the MHB main set frequency band and the satellite frequency band by adjusting the aperture of the antenna, the antenna efficiency will decrease sharply because the frequency band switching range is large, and the performance requirements of the satellite antenna cannot be met.

[0011] The antenna device in the embodiment can further include a first matching circuit and a first adjusting circuit. The first matching circuit can be connected in series between the first feed point of the first radiator and the first feed source. The first adjusting circuit can be connected in parallel with the first matching circuit. The first adjusting circuit can form parallel matching with the first matching circuit by controlling the first switch assembly to connect one or more first selection branches, so as to adjust the resident matching impedance of the first radiator, so that the first radiator can switch the operating frequency band in a small span and in a large span, so that the first radiator can cover the MHB main set frequency band and the satellite frequency band at the same time. At the same time, the first radiator switches the operating frequency band by switching the resident matching impedance, so that even if the operating frequency band is switched in a large span, the first radiator still has high antenna efficiency, so that the performance requirements of the satellite antenna can be met, and the user experience is good.

[0012] In a possible implementation, the first adjusting circuit includes n first selection branches and n second matching circuits, the first switch assembly includes n first switches, the n second matching circuits are arranged in one-to-one correspondence with the n first selection branches, one end of the n first selection branches is electrically connected to the first connection point through the n first switches in one-to-one correspondence, the other end is electrically connected to the second connection point, and the impedance values of the n second matching circuits are not completely same; wherein n is an integer greater than or equal to 1. In this way, the electronic device can switch the first radiator to different working frequency bands by connecting / disconnecting different first switches, so as to meet different use requirements of users.

[0013] In a possible implementation, the first adjusting circuit further includes a second switch assembly and at least one second selection branch, one end of the second selection branch is electrically connected to the first connection point through the second switch assembly, and the other end is grounded. The first adjusting circuit is further configured to selectively electrically connect any one or more second selection branches to the first connection point through the second switch assembly, or disconnect all second selection branches from the first connection point through the second switch assembly, so as to switch the working frequency band of the first radiator. In this way, by cooperating with each other through the first switch assembly and the second switch assembly, the first radiator can be switched to multiple different working frequency bands, so as to meet different use requirements of users.

[0014] In a possible implementation, the electronic device further includes a second adjusting circuit, the second adjusting circuit includes a third switch assembly and at least one third selection branch, and the electronic device further includes a third connection point located in the first radiator. One end of the third selection branch is electrically connected to the third connection point, and the other end is grounded through the third switch assembly. The second adjusting circuit is configured to selectively ground any one or more third selection branches through the third switch assembly, or disconnect all third selection branches from the grounding point through the third switch assembly, so as to switch the working frequency band of the first radiator.

[0015] It can be understood that, in the embodiment, the antenna device switches the working frequency band of the first radiator by cooperating the first adjusting circuit with the second adjusting circuit, so that the first radiator can meet more working frequency bands, the number of first selection branches in the first adjusting circuit is small, and the number of third selection branches in the second adjusting circuit is small, thereby avoiding that the number of selection branches in the same adjusting circuit is large and the selection branches are close to each other to generate coupling, which affects the antenna performance of the first radiator.

[0016] In a possible implementation, the distance between the third connection point and the first feeding point is less than or equal to one half of the length of the first radiator. In this way, the second adjusting circuit can adjust the antenna aperture of the first radiator, so as to fine-tune the working frequency band of the first radiator.

[0017] In a possible implementation, the frame includes a first long side and a first short side arranged adjacently, and the first short side is located at the top of the electronic device. The first radiator is formed on the first short side or fixed to the inner side of the first short side. In this way, the first radiator can be located at the top of the electronic device, and when the first radiator is used to support satellite frequency band communication, the satellite can be facilitated, and the use experience of satellite frequency band communication is improved.

[0018] In a possible implementation, the frame includes a first long side and a first short side arranged adjacently, and the first short side is located at the top of the electronic device. The first radiator is formed on the first short side or fixed to the inner side of the first short side. The electronic device further includes a second radiator, which is formed by a part of the first long side or fixed to the inner side of the first long side. The electronic device further includes a second adjusting circuit, which includes a third switch component and at least one third selection branch. The electronic device further includes a third connection point, which is located at the second radiator. One end of the third selection branch is electrically connected to the third connection point, and the other end is grounded through the third switch component. The second adjusting circuit is configured to selectively ground any one or more third selection branches through the third switch component, or disconnect all third selection branches from the grounding point through the third switch component, to switch the working frequency band of the first radiator. In this way, the second radiator can also serve as a parasitic branch of the first radiator, and the antenna performance of the antenna device is improved.

[0019] In a possible implementation, the first short side includes a first gap and a second gap arranged at intervals, and the part of the first short side between the first gap and the second gap constitutes the first radiator. The distance between the first gap and the midpoint of the first short side is not equal to the distance between the second gap and the midpoint of the first short side. In this way, the first gap and the second gap can be arranged asymmetrically about the midpoint of the first short side, and the positions of the first gap and the second gap are relatively flexible to adapt to different layouts of devices inside the electronic device.

[0020] In a possible implementation, the first radiator further includes a second end portion, and the first end portion is arranged closer to the first gap than the second end portion. The distance between the first gap and the midpoint of the first short side is greater than the distance between the second gap and the midpoint of the first short side. In this way, the first feed source, the first adjusting circuit, and the second adjusting circuit can be arranged close to the same end of the first radiator, so that the circuit board can centrally arrange the first feed source, the first adjusting circuit, and the second adjusting circuit, thereby effectively reducing the size of the circuit board and saving the internal space of the electronic device.

[0021] In a possible implementation, the first short side further includes a third slit, the third slit is located on a side of the second slit away from the first slit, and a portion of the first short side between the third slit and the second slit forms a third radiator. In this way, the first short side of the electronic device can further have the third radiator, and by arranging multiple radiators in the limited space on the top of the electronic device, the antenna performance of the electronic device can be effectively improved to meet the use requirements of users.

[0022] In a possible implementation, the electronic device further includes a second feed source, the first radiator further includes a second feed point, the second feed point is arranged at intervals from the first feed point, and the second feed source is electrically connected to the second feed point. In this way, the first radiator can be further fed to improve the antenna performance. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the drawings required to be used in the embodiments of the present application or the background art will be described below.

[0024] FIG. 1 is a structural schematic diagram of an electronic device in some embodiments of the present application;

[0025] FIG. 2 is a partially exploded structural schematic diagram of the electronic device shown in FIG. 1 in some embodiments;

[0026] FIG. 3 is a partial structural schematic diagram of the electronic device shown in FIG. 1;

[0027] FIG. 4 is a partially enlarged structural schematic diagram of the structure shown in FIG. 3;

[0028] FIG. 5 is a circuit topology diagram of the first matching circuit shown in FIG. 4 in some embodiments;

[0029] FIG. 6a is a circuit topology diagram of the antenna device shown in FIG. 4 in some embodiments;

[0030] FIG. 6b is a circuit topology diagram of the antenna device shown in FIG. 4 in some embodiments;

[0031] FIG. 7 is an antenna efficiency diagram of the first radiator shown in FIG. 4 operating in a main set frequency band of cellular communication MHB;

[0032] FIG. 8 is a system efficiency and upper hemisphere proportion of the first radiator shown in FIG. 4 operating in the main set frequency band of cellular communication MHB;

[0033] FIG. 9 is an antenna efficiency diagram of the first radiator shown in FIG. 4 operating in a Beidou short message frequency band;

[0034] FIG. 10 is an antenna efficiency diagram of the first radiator shown in FIG. 4 operating in a satellite communication frequency band;

[0035] Fig. 11 is a circular polarization gain pattern of the first radiator shown in Fig. 4 when operating in a satellite communication frequency band;

[0036] Fig. 12 is a circular polarization gain pattern of the first radiator shown in Fig. 4 when operating in a satellite internet frequency band;

[0037] Fig. 13 is a structural schematic diagram of the structure shown in Fig. 4 in some embodiments;

[0038] Fig. 14 is a structural schematic diagram of the structure shown in Fig. 13 in some embodiments;

[0039] Fig. 15 is a structural schematic diagram of the structure shown in Fig. 14 in some embodiments;

[0040] Fig. 16 is a structural schematic diagram of the structure shown in Fig. 4 in some embodiments;

[0041] Fig. 17 is a structural schematic diagram of the structure shown in Fig. 4 in some embodiments;

[0042] Fig. 18 is a structural schematic diagram of the structure shown in Fig. 4 in some embodiments;

[0043] Fig. 19 is a circuit topology diagram of the antenna device shown in Fig. 4 in some embodiments. DETAILED DESCRIPTION

[0044] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0045] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited, the terms “mounting”, “connecting” should be understood in a broad sense, for example, “connecting” can be detachable connection, or can be non-detachable connection; can be direct connection, or can be indirect connection through an intermediate medium. Among them, “fixed connection” refers to the relative positional relationship between the two after connection does not change. The orientation language mentioned in the embodiments of the present application, such as “upper”, “lower”, “inner”, “outer” and the like, is only the direction of the drawing, therefore, the orientation language used is to better, more clearly illustrate and understand the embodiments of the present application, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the embodiments of the present application. “Multiple” means at least two.

[0046] In the embodiments of the present application, the terms “first”, “second”, “third”, “fourth” are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by “first”, “second”, “third”, “fourth” can explicitly or implicitly include one or more of the features.

[0047] In the embodiments of the present application, "and / or" is merely a description of the relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally represents that the associated objects before and after the " / " are in an "or" relationship.

[0048] In this specification, the reference "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Thus, the appearances of the phrases "in one embodiment" or "in some embodiments" or "in other embodiments" or "in another embodiment" or the like in various places in the specification are not necessarily all referring to the same embodiment, but can refer to one or more but not all embodiments, unless otherwise specifically stated. The terms "including," "containing," "having," and variations thereof, mean "including but not limited to," unless expressly specified otherwise.

[0049] Connection / connection: can refer to a mechanical connection relationship or a physical connection relationship, that is, A and B are connected or A and B are connected, which means that there is a fastening member (such as a screw, a bolt, a rivet, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to be separated.

[0050] Coupling: can be understood as direct coupling and / or indirect coupling, and "coupling connection" can be understood as direct coupling connection and / or indirect coupling connection. Direct coupling can also be referred to as "electrical connection", which 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 a circuit structure through a physical line such as a copper foil or a wire on a printed circuit board (PCB) that can transmit electrical signals; "indirect coupling" can be understood as electrical conduction between two conductors through a space / without contact. In one embodiment, indirect coupling can also be referred to as capacitive coupling, for example, through the coupling between the gap between two conductive parts to form an equivalent capacitor to realize signal transmission.

[0051] 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 characteristics of the element always remain fixed and are independent of the frequency.

[0052] 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 in the element will be different when the signal passes through the element, and at this time the element as a whole cannot be regarded as a single body with fixed characteristics, but should be referred to as a distributed element.

[0053] Capacitance: can be understood as lumped and / or distributed capacitance. Lumped capacitance refers to a component that behaves as a capacitor, such as a capacitor element; distributed capacitance (or distributed capacitance) refers to an equivalent capacitance formed by two conductive pieces spaced apart by a gap.

[0054] Inductance: can be understood as lumped and / or distributed inductance. Lumped inductance refers to a component that behaves as an inductor, such as an inductor element; distributed inductance (or distributed inductance) refers to an equivalent inductance formed by a length of conductive piece, such as an equivalent inductance formed by a conductor due to curling or rotation.

[0055] Radiating element, or antenna element: is a device in an antenna used to receive / send electromagnetic wave radiation. In some cases, "antenna" is understood in a narrow sense as a radiating element, which changes the waveguide energy from a 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 element through the feed line, which is converted into electromagnetic wave energy of a certain polarization through the radiating element and radiated in the desired direction. The receiving radiating element 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 feed line.

[0056] The radiator (or antenna element) can include a conductor with a specific shape and size, such as a wire, or a patch, etc. The application does not limit the specific shape. In an embodiment, the wire radiator can be referred to as a wire antenna. In an embodiment, the wire radiator can be implemented by a conductive bezel, which can also be referred to as a bezel antenna. In an embodiment, the wire radiator can be implemented by a support conductor, which can also be referred to as a support antenna. In an embodiment, the wire diameter (e.g., including thickness and width) of the wire radiator, or the wire antenna, is much smaller (e.g., less than 1 / 16 of the wavelength) than the wavelength (e.g., the dielectric wavelength), and the length can be comparable to the wavelength (e.g., the length is around 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). The main forms of the wire 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 elements, and each element is fed by a feed from the feed end of the radiating element. For example, the inverted F antenna (IFA) can be 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 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 radiator can be implemented by a planar conductor (such as a conductive patch or a conductive coating, etc.). In an embodiment, the patch radiator can include a conductive patch, such as a copper patch, etc. In an embodiment, the patch radiator can include a conductive coating, such as silver paste, etc. The shape of the patch radiator includes a circle, a rectangle, a ring, etc. The structure of the microstrip antenna generally includes a dielectric substrate, a radiator, and a ground plate, wherein the dielectric substrate is arranged between the radiator and the ground plate.

[0057] The radiators (or antenna elements) can also include slots or gaps formed on the conductors, such as closed or semi-closed slots or gaps formed 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 antennas / 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 antennas or gap antennas can be implemented by conductive frames that are grounded at both ends, which can also be referred to as frame antennas; in this embodiment, the slot antennas or gap antennas can be considered to include linear radiators that are spaced apart from the ground plane and grounded at both ends, thereby forming closed or semi-closed slots or gaps. In one embodiment, the radiators of the slot antennas or gap antennas can be implemented by bracket conductors that are grounded at both ends, which can also be referred to as bracket antennas.

[0058] The feed circuit is a combination of all circuits for reception and transmission of radio frequency signals. The feed circuit can be referred to as a feed source. 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.

[0059] 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.

[0060] 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.

[0061] The ground structure / feeding structure can include a connector, such as a metal spring, and the radiator is coupled to the floor through the ground structure / 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.

[0062] The feeding line, also known as the transmission line, refers to the connection line between the transceiver of the antenna and the radiator. The transmission line can directly transmit current waves or electromagnetic waves according to different frequencies and forms. The connection between the radiator and the transmission line is usually referred to as the feeding point. The transmission line includes a wire transmission line, a coaxial transmission line, a waveguide, or a microstrip line, etc. The transmission line can include a support antenna body or a glass antenna body according to the implementation form. The transmission line can be implemented by LCP (Liquid Crystal Polymer), FPC (Flexible Printed Circuit), or PCB (Printed Circuit Board) according to the carrier.

[0063] Ground / floor: can refer to at least a part of any ground layer, or ground plate, or ground metal layer, etc. 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, etc. The ground / floor can be used for grounding of components in the electronic device. In one embodiment, the ground / floor can include any one or more of the following: a ground layer of a circuit board of the electronic device, a ground plate formed by a middle frame of the electronic device, a ground metal layer formed by a metal film under the screen, a conductive ground layer of the battery, and a conductive or metal component electrically connected to the above ground layer / ground plate / metal layer. In one embodiment, the circuit board can be a printed circuit board (PCB), such as an 8-layer, 10-layer, or 12-14 layer board with 8, 10, 12, 13, or 14 layers of conductive material, or elements separated and electrically insulated by a dielectric layer or insulating layer such as glass fiber, polymer, etc. In one embodiment, the circuit board includes a dielectric substrate, a ground layer, and a wiring layer, and the wiring layer and the ground layer are electrically connected by a via. In one embodiment, components such as the display 120, the touch screen, the input button, the transmitter, the processor, the memory, the battery 140, the charging circuit, the 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, the radio frequency source is arranged on the wiring layer.

[0064] Any of the above ground plane, or ground plate, or ground metal layer is made of conductive material. In one embodiment, the conductive material can be any of the following: copper, aluminum, stainless steel, brass and their alloys, copper foil on an insulating substrate, aluminum foil on an insulating substrate, gold foil on an insulating substrate, silver-plated copper, silver-plated copper foil on an insulating substrate, silver foil on an insulating substrate, and tin-plated copper, graphite powder impregnated cloth, graphite coated substrate, copper plated substrate, brass plated substrate, and aluminum plated substrate. Those skilled in the art will understand that the ground plane / ground plate / ground metal layer can also be made of other conductive materials.

[0065] Ground: refers to coupling with the above-mentioned ground / ground plate through a grounding structure and / or a grounding circuit. In one embodiment, the ground can be a physical ground, such as a physical ground at a specific position on the bezel through a part of the structure of the middle frame (or referred to as a physical ground). In one embodiment, the ground can be a device ground, such as a device ground through capacitors / inductors / resistors in series or parallel (or referred to as a device ground).

[0066] Resonant frequency: resonant frequency is also called resonance frequency. The resonant frequency can have a frequency range, i.e., a frequency range in which resonance occurs. The resonant frequency can be a frequency range in which the return loss characteristic is less than -6dB. The strongest point of resonance can be referred to as a resonance point, and the frequency corresponding to the resonance point is the center frequency point frequency. The return loss characteristic of the center frequency can be less than -20dB. It should be understood that, unless otherwise specified, the antenna / radiator mentioned in this application produces "first / second… resonance", wherein the first resonance is the fundamental mode resonance produced by the antenna / radiator, or in other words, the lowest frequency resonance produced by the antenna / radiator. It should be understood that the antenna / radiator can produce one or more antenna modes according to the specific design, and each antenna mode can correspond to a fundamental mode resonance.

[0067] Resonant frequency band: the range of resonant frequencies is the resonant frequency band, and the return loss characteristic of any frequency point in the resonant frequency band can be less than -6dB or -5dB.

[0068] Communication frequency band / working frequency band: no matter what type of antenna, it always works in a certain frequency range (bandwidth). For example, an antenna supporting B40 frequency band has a working frequency band including frequencies in the range of 2300MHz-2400MHz, or in other words, the working frequency band of the antenna includes the B40 frequency band. The frequency range that meets the index requirements can be regarded as the working frequency band of the antenna. The width of the working frequency band is called the working bandwidth. The working bandwidth of an omnidirectional antenna can reach 3-5% of the center frequency. The working bandwidth of a directional antenna can reach 5-10% of the center frequency. The bandwidth can be considered as a range of frequencies on both sides of the center frequency (e.g., the resonant frequency of a dipole), in which the antenna characteristics are within the acceptable value range of the center frequency.

[0069] The resonant frequency band and the operating frequency band can be the same or can partially overlap. In one embodiment, one or more resonant frequency bands of an antenna can cover one or more operating frequency bands of the antenna.

[0070] End / point: "End / point" in the first end / second end / feed end / ground end / feed point / ground point / connection point of an antenna radiator should not be understood in a narrow sense as an end point or end portion physically disconnected from other radiators, but can also be understood as a certain point or a certain section on a continuous radiator. In one embodiment, "end / point" can include a connection / coupling area on an antenna radiator that is coupled to other conductive structures, for example, a feed end / feed point can be a coupling area (for example, an area facing a portion of a feed structure) on an antenna radiator that is coupled to a feed structure, and for another example, a ground end / ground point can be a connection / coupling area on an antenna radiator that is coupled to a ground structure.

[0071] Open end, closed end: In some embodiments, open end and closed end are, for example, relative to grounding, the closed end is grounded, and the open end is not grounded. In some embodiments, open end and closed end are, for example, relative to other conductive bodies, the closed end is electrically connected to other conductive bodies, and the open end is not electrically connected to other conductive bodies. In one embodiment, the open end can also be referred to as a suspended end, a free end, an open end, or an open circuit end. In one embodiment, the closed end can also be referred to as a grounded end or a short circuit end. It should be understood that in some embodiments, other conductive bodies can be coupled to the open end to transfer coupled energy (which can be understood as transferring current).

[0072] In some embodiments, the understanding of "closed end" can also be from the perspective of current distribution, the closed end or the 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 (such as 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 (such as 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.

[0073] In some embodiments, the understanding of "open end" can also be from the perspective of current distribution, the open end or the suspended 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 (such as capacitors, inductors, etc.) through the open end can not change the current distribution characteristics of the current small point / large point of electric field.

[0074] It should be appreciated that the radiating body end at the gap (similar to the open end or the radiating body at the opening of the suspended end from the structure of the radiating body) coupled with the electronic device (for example, a capacitor, an inductor, etc.) can make the radiating body end a large current point / small electric field point, in which case it should be appreciated that the radiating body end at the gap is actually a closed end or a grounded end, etc.

[0075] It should be understood that the specific embodiments described herein are merely exemplary and not limiting to the application. In addition, it should be noted that only parts related to the application are shown in the drawings for the purpose of description.

[0076] FIG. 1 is a structural schematic diagram of an electronic device 1000 in some embodiments according to the present application. FIG. 2 is a partially exploded structural schematic diagram of the electronic device 1000 shown in FIG. 1 in some embodiments.

[0077] As shown in FIGS. 1 and 2, the electronic device 1000 provided by the present application can be a mobile phone, a watch, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a smart home, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, augmented reality (AR) glasses, an AR helmet, virtual reality (VR) glasses, a VR helmet, etc. The electronic device 1000 can also be a handheld device with wireless communication function, a computing device, or other processing device connected to a wireless modem, a vehicle-mounted device, an electronic device 1000 in a 5G network, or an electronic device 1000 in a future evolved public land mobile network (PLMN), etc., or other forms of devices capable of receiving and radiating electromagnetic wave signals. The electronic device 1000 of the embodiment shown in FIG. 1 is described by taking a mobile phone as an example. For the purpose of description, the thickness direction of the electronic device 1000 is defined as the Z-axis, the length direction of the electronic device 1000 is defined as the Y-axis, and the width direction of the electronic device 1000 is defined as the X-axis. It should be appreciated that the coordinate system of the electronic device 1000 can also be specifically set according to actual needs, which is not limited by the present application.

[0078] Exemplarily, the electronic device 1000 can include a screen 200 and a housing 300. It can be understood that FIG. 1 and FIG. 2 only schematically show some components included in the electronic device 1000, and the actual shape, actual size and actual structure of the components are not limited by FIG. 1 and FIG. 2. In other embodiments, when the electronic device 1000 is in other forms, the electronic device 1000 can also not include the screen 200. The screen 200 can be mounted on the housing 300. FIG. 1 schematically shows that the screen 200 and the housing 300 form a structure in the shape of a cuboid. The screen 200 can be used to display images, texts and the like. It should be understood that in the embodiments of the present application, when a user holds (usually holds vertically and faces the screen 200) the electronic device 1000, the orientation of the electronic device 1000 has a top, a bottom, a left side and a right side. The top of the electronic device 1000 can be towards the sky. In the present embodiment, the arrangement direction of the top and the bottom can be parallel to the Y-axis direction. The arrangement direction of the left side and the right side can be parallel to the X-axis direction.

[0079] Exemplarily, the housing 300 can be used to support the screen 200 and related devices of the electronic device 1000. The housing 300 can include a middle frame 310 and a rear cover 320. The rear cover 320 and the screen 200 can be mounted on the two sides of the middle frame 310 away from each other. The arrangement direction of the rear cover 320 and the screen 200 can be parallel to the Z-axis direction. The rear cover 320 can be fixedly connected to the middle frame 310 by adhesion, welding or the like. At this time, the screen 200, the middle frame 310 and the rear cover 320 can collectively enclose the internal space of the electronic device 1000. The internal space of the electronic device 1000 can be used to place internal devices of the electronic device 1000, such as a battery, a speaker, a microphone or an earpiece and the like. The rear cover 320 can be a rear cover 320 made of a metal material, or a rear cover 320 made of a non-conductive material, such as a glass rear cover, a plastic rear cover or other non-metal rear cover, or a rear cover 320 made of both conductive material and non-conductive material.

[0080] Exemplarily, the middle frame 310 can include a frame 311 and a middle plate 312. The frame 311 can be arranged around the middle plate 312 and connected to the middle plate 312. The frame 311 can be formed of a conductive material such as metal. At this time, the frame 311 is a metal frame. In some embodiments, the middle frame 310 can only include the frame 311. The rear cover 320 can be an integrally formed structure with the frame 311, that is, the rear cover 320 and the frame 311 are one whole.

[0081] Exemplarily, the electronic device 1000 can further include a circuit board 500. The circuit board 500 can be a printed circuit board (PCB). The circuit board 500 can be located between the middle frame 310 and the back cover 320. The circuit board 500 can carry electronic components such as radio frequency chips and the like. The circuit board 500 can be made of a flame retardant material (FR-4) medium plate, a Rogers medium plate, a hybrid medium plate of Rogers and FR-4, or the like. It should be noted that FR-4 is a code of a flame retardant material grade, and the Rogers medium plate is a high-frequency plate. In some embodiments, the circuit board 500 can also be located between the screen 200 and the middle frame 310. The specific position of the circuit board 500 is not limited in the present application.

[0082] In some embodiments, a metal layer can also be provided on the circuit board 500. The metal layer can be used for grounding of the electronic components carried on the circuit board 500, and can also be used for grounding of other components in the electronic device 1000 (such as support antennas, frame antennas, and the like). At this time, the metal layer can be referred to as a ground plate, or a grounding plate, or a grounding layer. Exemplarily, the edge of the circuit board 500 can be regarded as the edge of the ground plate.

[0083] In some embodiments, the conductive part in the middle frame 310 and / or the back cover 320 can also serve as a reference ground of the electronic device 1000. The circuit board 500 and other devices in the electronic device 1000 can be grounded by electrical connection with the middle frame 310 and / or the back cover 320. In other embodiments, the electronic device 1000 can also have other ground plates, which are not described herein.

[0084] In the present application, the electronic device 1000 can further include an antenna device (not shown in the figure). The antenna device can use the conductive part of the frame 311 of the electronic device 1000 as a main radiator and / or a parasitic branch. The antenna device can be used to support satellite frequency band communication and support cellular communication. The satellite frequency band can include Beidou short message frequency band, satellite communication frequency band, star network frequency band, and the like.

[0085] FIG. 3 is a partial structure schematic diagram of the electronic device 1000 shown in FIG. 1.

[0086] As shown in FIG. 3, the bezel 311 of the electronic device 1000 can be a metal bezel. The bezel 311 can include a first short side 3111 and a second short side 3112 arranged oppositely, and a first long side 3113 and a second long side 3114 arranged oppositely. The first short side 3111 and the second short side 3112 can be connected between the first long side 3113 and the second long side 3114. An included angle (e.g., an included angle of 90°) can be formed between the first long side 3113 and the first short side 3111. The length of the first long side 3113 can be greater than the length of the first short side 3111. It should be understood that the length of the first long side 3113 refers to the dimension of the first long side 3113 in the direction in which the first long side 3113 extends. The length of the first short side 3111 refers to the dimension of the first short side 3111 in the direction in which the first short side 3111 extends. In some embodiments, the first long side 3113, the second long side 3114, the first short side 3111, and the second short side 3112 can all be in the shape of a long strip. The bezel 311 can further include a plurality of corners (not shown in the figure). Any two adjacent ones of the first long side 3113, the second long side 3114, the first short side 3111, and the second short side 3112 can be connected through a corner. In other embodiments, any corner of the bezel 311 can also be considered as part of the long side or the short side adjacent to the corner.

[0087] In the present embodiment, when a user holds the electronic device 1000 (see FIG. 1), the first short side 3111 can be located at the top of the electronic device 1000. The second short side 3112 can be located at the bottom of the electronic device 1000. The first long side 3113 can be located at the right side of the electronic device 1000. The second long side 3114 can be located at the left side of the electronic device 1000.

[0088] It should be noted that the bezel 311 shown in FIG. 3 is described by taking the non-foldable electronic device 1000 as an example. When the electronic device 1000 is a foldable electronic device 1000 (e.g., a two-fold or a three-fold device, etc.), the above-mentioned first long side 3113, the second long side 3114, the first short side 3111, and the second short side 3112 can be understood as the long side and the short side on the middle frame corresponding to one of the folds in the multi-fold device accordingly.

[0089] FIG. 4 is a partially enlarged structural schematic diagram of the structure shown in FIG. 3.

[0090] As shown in FIG. 4, the antenna device 400 can include at least one radiator. In an implementation, the outer surface of the bezel 311 can be a conductive material, such as a metal material, thereby forming the appearance of a metal bezel. In these implementations, the conductive part of the bezel 311 (e.g., including the outer surface of the bezel 311) can be used as a radiator of the antenna device 400.

[0091] In an implementation, the outer surface of the bezel 311 can be a non-conductive material, such as plastic, forming a non-metallic appearance of the bezel, and the inner surface of the bezel 311 can include a conductive material, such as a metallic material. In these implementations, the conductive portion of the bezel 311 (e.g., including the inner surface of the bezel 311) can be used as a radiator of the antenna device 400. It should be appreciated that the radiator disposed on the inner surface of the bezel 311 (or the conductive material of the inner surface) is disposed against the non-conductive material of the bezel 311 to facilitate antenna radiation, and both the conductive material and the non-conductive material should be considered as part of the bezel 311.

[0092] For example, the first short side 3111 can be provided with a first gap 311a and a second gap 311b disposed at intervals. The first gap 311a and the second gap 311b can divide a metal segment on the first short side 3111 to form a first radiator 410 of the antenna device 400. The first gap 311a and the second gap 311b can be filled with an insulating material, such as a polymer, glass, ceramic, or a combination of these materials. In other implementations, the material of the first short side 3111 can also be a non-conductive material. In this case, the first short side 3111 can also not be provided with the first gap 311a and the second gap 311b. The first radiator 410 can be a conductive body attached to the first short side 3111, such as an FPC antenna or an LDS antenna, etc. In some other implementations, the first radiator 410 can also be provided on the first long side 3113.

[0093] For example, the first radiator 410 can include a first end 411 and a second end 412. The first end 411 can be disposed closer to the first gap 311a than the second end 412. The second end 412 can be disposed closer to the second gap 311b than the first end 411. Both the first end 411 and the second end 412 can be open ends. The first radiator 410 can not have a ground point, i.e., the first radiator 410 does not have a ground end directly grounded. In this case, the first radiator 410 does not have a direct ground current path. The first radiator 410 can be considered as a floating antenna branch.

[0094] Exemplarily, the first gap 311a and the second gap 311b can be asymmetrically arranged about the midpoint of the first short side 3111, that is, the distance between the first gap 311a and the midpoint of the first short side 3111 can be different from the distance between the second gap 311b and the midpoint of the first short side 3111. At this time, the first radiator 410 can be asymmetrically arranged about the midpoint of the first short side 3111. The distance between the first end 411 of the first radiator 410 and the midpoint of the first short side 3111 can be different from the distance between the second end 412 and the midpoint of the first short side 3111. Exemplarily, the distance between the first gap 311a and the midpoint of the first short side 3111 can be greater than the distance between the second gap 311b and the midpoint of the first short side 3111.

[0095] FIG. 5 is a circuit topology diagram of the first matching circuit M1 shown in FIG. 4 in some embodiments.

[0096] As shown in FIGS. 4 and 5, the first radiator 410 can include a first feeding point 413. The antenna device 400 can further include a first feed source 420 and a first matching circuit M1. The first feed source 420 and the first matching circuit M1 can be disposed on the circuit board 500. The first matching circuit M1 can be electrically connected between the first feed source 420 and the first feeding point 413 of the first radiator 410. That is, the first feed source 420 can be electrically connected to the first feeding point 413 through the first matching circuit M1. The first feed source 420 can input an electrical signal to the first feeding point 413 to excite the first radiator 410 to generate a resonant current, form a resonant mode, and support a frequency band corresponding to the resonant current. Exemplarily, the first radiator 410 can form a first resonant mode through the first matching circuit M1. The first resonant mode can be a half-wavelength mode.

[0097] The first matching circuit M1 can include one or more elements. The elements can be capacitors, inductors, etc. The elements can be in series or parallel relationship. Exemplarily, the first matching circuit M1 can be in any one of (a) to (e) shown in FIG. 5, or a mutual combination of any multiple of (a) to (e). It should be noted that the matching circuit hereinafter, unless otherwise specified, can also refer to the circuit form shown in FIG. 5, and will not be described in detail hereinafter.

[0098] Exemplarily, the electronic device 1000 can further include a conductive spring (not shown). The first matching circuit M1 can be electrically connected to the first feeding point 413 of the first radiator 410 through the conductive spring. In other embodiments, the electrical connection between the first matching circuit M1 and the first feeding point 413 can also include, but is not limited to, welding or electrical connection through a microstrip line, a coaxial line, etc. The present application does not make a specific limitation in this regard.

[0099] Please refer to FIG. 4 again, the distance between the first feeding point 413 and the end surface of the first slot 311a (i.e. the end surface of the first end portion 411 facing away from the second end portion 412) can be a first distance. The ratio of the first distance to the length of the first radiator 410 can be less than or equal to one fourth. At this time, the first feeding point 413 can be regarded as being located at the first end portion 411 of the first radiator 410, i.e. the first feed source 420 can feed the end of the first radiator 410 (i.e. the first end portion 411 in the embodiment). The first radiator 410 can generate a half-wavelength antenna mode. It should be noted that the length of the first radiator 410 can be the distance from the first end portion 411 to the second end portion 412 in the length extension direction of the first radiator 410.

[0100] FIG. 6a is a circuit topology diagram of the antenna device 400 shown in FIG. 4 in some embodiments.

[0101] As shown in FIG. 4 and FIG. 6a, the antenna device 400 can further include a first adjustment circuit 430. The first adjustment circuit 430 can be disposed on the circuit board 500. The first adjustment circuit 430 can be connected in parallel with the first matching circuit M1. The first adjustment circuit 430 can cooperate with the first matching circuit M1 to adjust the impedance of the first radiator 410, so as to adjust the operating frequency band of the first radiator 410. The antenna device 400 can include a first connection point 401 and a second connection point 402. The first connection point 401 can be electrically connected between the first matching circuit M1 and the first feeding point 413. The second connection point 402 can be electrically connected between the first matching circuit M1 and the first feed source 420. One end of the first adjustment circuit 430 can be electrically connected to the first connection point 401, and the other end can be electrically connected to the second connection point 402, so as to be connected in parallel with the first matching circuit M1.

[0102] Exemplarily, the first adjustment circuit 430 can include a first switch assembly 430a and n first selection branches 432, where n can be an integer greater than or equal to 1. The first switch assembly 430a can include n first switches 431. That is, the number of the first switches 431 can be the same as the number of the first selection branches 432. One end of the nth first selection branch 432 can be electrically connected to the first connection point 401 through the nth first switch 431, and the other end can be electrically connected to the second connection point 402.

[0103] Exemplarily, the second matching circuit 433 can be arranged on each first selection branch 432. Impedance values of the second matching circuits 433 on the plurality of first selection branches 432 can not be completely same. The nth first selection branch 432 can be in an open circuit state or form a loop with the first matching circuit M1 under the action of the nth first switch 431. Exemplarily, when n is an integer greater than or equal to 2, the plurality of first switches 431 can be integrated into a single-throw n-pole switch. In other embodiments, each first switch 431 can also be a single-throw single-pole switch or an electronic switch tube (such as a MOS tube, a transistor, etc.), etc. The specific form of the first switch 431 is not limited in the present application.

[0104] Exemplarily, when the antenna device 400 is working, the electronic device 1000 can control any one or more of the n first switches 431 of the first adjustment circuit 430 to be in a connected state, so that the second matching circuit 433 on the first selection branch 432 corresponding to the one or more first switches 431 can form a loop with the first matching circuit M1, so that the second matching circuit 433 on the one or more first selection branches 432 can form a filter structure or a parallel matching with the first matching circuit M1, thereby adjusting the impedance of the first matching circuit M1 to adjust the working frequency band of the first radiator 410. In other words, the electronic device 1000 can control the connection of any one or more of the n first switches 431 of the first adjustment circuit 430 to switch the second matching circuit 433 on the corresponding one or more first selection branches 432 in parallel with the first matching circuit M1, thereby realizing switching the matching impedance of the first matching circuit M1 to switch the working frequency band of the first radiator 410. In this way, by switching the second matching circuit 433 on the different first selection branches 432 in parallel with the first matching circuit M1, the working of the first radiator 410 in different frequency bands can be realized, and the first radiator 410 can cover a plurality of different working frequency bands. Moreover, the first radiator 410 can perform large-span switching of the working frequency band while having good antenna efficiency, thereby meeting different use requirements of the electronic device 1000.

[0105] Exemplarily, the first radiator 410 can cover at least part of the cellular communication MHB main set frequency band under the action of the first adjusting circuit 430. The cellular communication MHB main set frequency band can include b1, b3, b34, b39, b40 and b41 frequency bands. The first radiator 410 can also cover at least one satellite frequency band (for example, any one or more of Beidou short message communication frequency band, satellite communication frequency band, and star network communication frequency band) under the action of the first adjusting circuit 430. For example, when the first radiator 410 needs to cover multiple different working frequency bands, the number of first selection branches 432 can be increased, and multiple combinations of different first selection branches 432 can be used to enable the first radiator 410 to cover different working frequency bands.

[0106] In the embodiment, n can be 2. At this time, the first adjusting circuit 430 can include a first first switch k11, a second first switch k12, a first first selection branch 4321, a second first selection branch 4322, a first second matching circuit M21 and a second second matching circuit M22. One end of the first first selection branch 4321 can be electrically connected to the first connection point 401 of the first radiator 410 through the first first switch k11, and the other end can be electrically connected between the first matching circuit M1 and the first feed source 420. One end of the second first selection branch 4322 can be electrically connected to the first connection point 401 of the first radiator 410 through the second first switch k12, and the other end can be electrically connected between the first matching circuit M1 and the first feed source 420. The first first selection branch 4321 and the second first selection branch 4322 can be controlled by the first first switch k11 and the second first switch k12, respectively. The impedance value of the first second matching circuit 433 can be different from the impedance value of the second second matching circuit 433.

[0107] Exemplarily, when the first first switch k11 is in the on state and the second first switch k12 is in the off state, the first second matching circuit M21 of the first second selection branch 4321 can be connected in parallel with the first matching circuit M1, so as to switch the matching impedance of the first radiator 410, so as to switch the working frequency band of the first radiator 410. When the first first switch k11 is in the off state and the second first switch k12 is in the on state, the second second matching circuit M22 of the second second selection branch 4322 can be connected in parallel with the first matching circuit M1, so as to switch the matching impedance of the first radiator 410, so as to switch the working frequency band of the first radiator 410. In some embodiments, the first first switch k11 and the second first switch k12 can also be in the on state at the same time. At this time, the first second matching circuit M21 and the second second matching circuit M22 can be connected in parallel with each other and form a parallel connection with the first matching circuit M1. In some embodiments, the first first switch k11 and the second first switch k12 can also be in the off state at the same time.

[0108] Please refer to FIG. 4 and FIG. 6a again. The first adjusting circuit 430 can further include a second switch assembly 430b and w second selection branches 435, where w can be an integer greater than or equal to 1. The second switch assembly 430b can include w second switches 434. That is, the number of the second switches 434 can be the same as the number of the second selection branches 435. One end of the wth second selection branch 435 can be grounded, and the other end can be electrically connected to the first connection point 401 through the wth second switch 434. A third matching circuit 436 can be arranged on each second selection branch 435. The impedance values of the third matching circuits 436 on the plurality of second selection branches 435 can not be completely the same. The wth second selection branch 435 can be in the off state or connect the wth third matching circuit 436 into the loop of the first radiator 410 under the action of the wth second switch 434, so that the first radiator 410 can be grounded through the wth second selection branch 435. It should be noted that when the first radiator 410 is grounded through the second selection branch 435, it can be regarded as that the first radiator 410 is indirectly grounded through the second selection branch 435, and at this time, the first radiator 410 can still be considered as not directly grounded, and the first radiator 410 is a suspended antenna radiator. Exemplarily, one or more second switches 434 can be integrated into the same single-throw multi-throw switch as one or more first switches 431. In other embodiments, each second switch 434 can also be a single-throw single-throw switch or an electronic switch tube (such as a MOS tube, a transistor, etc.).

[0109] Exemplarily, when the antenna device 400 is working, the electronic device 1000 can control any one or more of the n first switches 431 of the first adjustment circuit 430 and / or one or more of the w second switches 434 to be in a connected state, so that one or more first selection branches 432 can be combined with one or more second selection branches 435 to form a plurality of matching networks with different impedance values, to jointly adjust the resident matching impedance of the first radiator 410, so that the first radiator 410 can cover more working frequency bands.

[0110] In the embodiment, w can be 2. At this time, the first adjustment circuit 430 can include a first second switch k21, a second second switch k22, a first second selection branch 4351, a second second selection branch 4352, a first third matching circuit M31, and a second third matching circuit M32. One end of the first second selection branch 4351 can be electrically connected to the first connection point 401 through the first second switch k21, and the other end can be grounded. One end of the second second selection branch 4352 can be electrically connected to the first connection point 401 through the second second switch k22, and the other end can be grounded. The first second selection branch 4351 and the second second selection branch 4352 can be controlled by the first second switch k21 and the second second switch k22, respectively. The impedance value of the first third matching circuit M31 can be different from that of the second third matching circuit M32.

[0111] In other embodiments, the first adjustment circuit 430 can also not include the second switches 434 and the second selection branches 435.

[0112] FIG. 6b is a circuit topology diagram of the antenna device 400 shown in FIG. 4 in some embodiments.

[0113] Please refer to FIG. 4, FIG. 6a, and FIG. 6b again, the antenna device 400 can also include a third connection point 403. The third connection point 403 can be located on the first radiator 410. The third connection point 403 can be arranged apart from the first feeding point 413. The antenna device 400 can also include a second adjustment circuit 440. The second adjustment circuit 440 can be arranged on the circuit board 500. The second adjustment circuit 440 can be electrically connected to the third connection point 403. Exemplarily, the third connection point 403 can be arranged close to the first feeding point 413, for example, the distance between the third connection point 403 and the first feeding point 413 can be less than or equal to one half of the total length of the first radiator 410. At this time, the second adjustment circuit 440 can be used to adjust the antenna aperture of the first radiator 410, to adjust the working frequency band of the first radiator 410.

[0114] Exemplarily, the second adjusting circuit 440 can include a third switch assembly 440a and t third selection branches 442, where t can be an integer greater than or equal to 1. The third switch assembly 440a can include t third switches 441. That is, the number of the third switches 441 can be the same as the number of the third selection branches 442. One end of the tth third selection branch 442 can be electrically connected to the third connection point 403 of the first radiator 410, and the other end can be grounded through the tth third switch 441. The fourth matching circuit 443 can be arranged on each third selection branch 442. The impedance values of the fourth matching circuits 443 on the plurality of third selection branches 442 can be different. The tth third selection branch 442 can be in an open state or connected into the loop of the first radiator 410 under the action of the tth third switch 441. Exemplarily, when t is an integer greater than or equal to 2, the plurality of third switches 441 can be integrated into a same parallel switch. In other embodiments, each third switch 441 can also be a single-pole single-throw switch or an electronic switch tube (such as a MOS tube, a transistor, etc.), etc. The specific form of the first switch 431 is not limited in the present application.

[0115] Exemplarily, when the antenna device 400 is working, the electronic device 1000 can control any one or more of the t third switches 441 of the second adjusting circuit 440 to be in a connected state, so that the fourth matching circuit 443 on the third selection branch 442 corresponding to the one or more third switches 441 can be connected into the loop of the first radiator 410, to adjust the impedance of the loop, so as to adjust the antenna aperture of the first radiator 410, and adjust the working frequency band of the first radiator 410. In other words, the electronic device 1000 can control the connection of any one or more of the t third switches 441 of the second adjusting circuit 440, to switch the fourth matching circuit 443 on the corresponding one or more third selection branches 442 to be connected into the loop of the first radiator 410, and the first radiator 410 can be grounded through the corresponding third selection branch 442, so as to switch the antenna aperture of the first radiator 410, and switch the working frequency band of the first radiator 410. In this way, by switching the fourth matching circuit 443 on different third selection branches 442 to be connected into the loop of the first radiator 410, the working of the first radiator 410 at different frequency bands can be switched, the first radiator 410 can cover a plurality of different working frequency bands, so as to meet different use requirements of the electronic device 1000.

[0116] In the embodiment, t can be 4. At this time, the second adjusting circuit 440 can include a first third switch k31, a second third switch k32, a third third switch k33, a fourth third switch k34, a first third selection branch 4421, a second third selection branch 4422, a third third selection branch 4423, a fourth third selection branch 4424, a first third matching circuit M31, a second third matching circuit M32, a third third matching circuit M33, and a fourth third matching circuit M34. One end of the first third selection branch 4421 can be electrically connected to the third connection point 403 of the first radiator 410, and the other end can be grounded through the first first switch k11. The connection modes of the remaining third switches 441 and the third selection branches 442 can be referred to the connection modes of the first third switch k31 and the first third selection branch 4421, which will not be described here. At this time, the first third selection branch 4421, the second third selection branch 4422, the third third selection branch 4423, and the fourth third selection branch 4424 can be controlled by the first third switch k31, the second third switch k32, the third third switch k33, and the fourth third switch k34, respectively. The impedance values of the first fourth matching circuit M31, the second fourth matching circuit M32, the third fourth matching circuit M33, and the fourth fourth matching circuit M34 can not be completely the same.

[0117] Exemplarily, when the antenna device 400 works, the electronic equipment 1000 can adjust the working frequency band of the first radiator 410 by controlling the cooperation of the first adjusting circuit 430 and the second adjusting circuit 440, and by combining any one or more of the different first selection branches 432, the different second selection branches 435, and the different third selection branches 442 with each other, so that the first radiator 410 can cover more working frequency bands, and the first radiator 410 can cover a wider frequency range, which is conducive to realizing the miniaturization of the antenna device 400 and saving the internal space of the electronic equipment 1000.

[0118] In other embodiments, the antenna device 400 can also not include the second adjusting circuit 440.

[0119] Referring to FIGS. 4, 6a and 6b again, the antenna device 400 can further include a fifth matching circuit M5. The fifth matching circuit M5 can be electrically connected between the first feeding point 413 and the first matching circuit M1. In this case, the first connection point 401 can be electrically connected between the first matching circuit M1 and the fifth matching circuit M5. The first adjustment circuit 430 can be connected in parallel with the first matching circuit M1. The first feed source 420 can be electrically connected to the first feeding point 413 through the first matching circuit M1 and the fifth matching circuit M5. The first feed source 420 can input an electrical signal to the first feeding point 413 to excite the first radiator 410 to generate a resonant current, form a resonant mode, and support a frequency band corresponding to the resonant current. For example, the first radiator 410 can form a first resonant mode through the first matching circuit M1. The first resonant mode can be a half-wavelength mode. The first radiator 410 can further form a second resonant mode through the fifth matching circuit M5. The second resonant mode can be a three-quarter wavelength mode.

[0120] For example, the antenna device 400 can further include a third adjustment circuit (not shown). The third adjustment circuit can be connected in parallel with the fifth matching circuit M5. The third adjustment circuit can include a plurality of fourth selection branches (not shown) and a fourth switch assembly (not shown). Each of the fourth selection branches can be provided with a sixth matching circuit (not shown). The plurality of sixth matching circuits can have different impedance values. The third adjustment circuit can selectively connect any one or more of the fourth selection branches in parallel with the fifth matching circuit M5 or disconnect all of the fourth selection branches from the fifth matching circuit M5 by controlling the fourth switch assembly, thereby adjusting the impedance to adjust the resonant frequency of the antenna.

[0121] In other embodiments, the antenna device 400 can further not include the fifth matching circuit M5.

[0122] FIG. 7 is an antenna efficiency diagram of the first radiator 410 shown in FIG. 4 operating in a main set frequency band of cellular communication MHB. FIG. 8 is a system efficiency and an upper hemisphere ratio of the first radiator 410 shown in FIG. 4 operating in the main set frequency band of cellular communication MHB.

[0123] As shown in FIGS. 7 and 8, the first radiator 410 can cover the cellular communication MHB main set frequency band under the cooperation of the first adjusting circuit 430 and the second adjusting circuit 440. When the first radiator 410 works in the cellular communication main set frequency band, the S11 values of the first radiator 410 in different frequency bands in the main set frequency band can all be below -4 dB. The in-band average of the system efficiency of the first radiator 410 in different frequency bands in the main set frequency band can all be below -3.5 dB. The upper hemisphere proportion of the first radiator 410 in the electronic device 1000 can reach more than 65%. It should be understood that the antenna efficiency of the first radiator 410 in the embodiment is better when supporting cellular communication, the antenna performance is better, and the user experience is better.

[0124] It can be understood that, compared with the general antenna device which supports different frequency bands in the cellular communication MHB main set by setting multiple antennas, the volume of the antenna device is larger, and there is a mutual coupling problem between the multiple antennas, which affects the antenna performance. The antenna device 400 in the embodiment can make the first radiator 410 cover the cellular communication MHB main set frequency band through the cooperation of the first adjusting circuit 430 and the second adjusting circuit 440, thereby effectively reducing the volume of the antenna device 400 and saving the internal space of the electronic device 1000. At the same time, the mutual coupling problem of multiple cellular antennas can also be effectively avoided, and the antenna performance of the first radiator 410 is better when working in the cellular communication MHB main set frequency band, the antenna efficiency is better, and the upper hemisphere proportion is better.

[0125] FIG. 9 is an antenna efficiency diagram of the first radiator 410 shown in FIG. 4 working in the Beidou short message frequency band. FIG. 10 is an antenna efficiency diagram of the first radiator 410 shown in FIG. 4 working in the satellite communication frequency band. FIG. 11 is a circular polarization gain pattern diagram of the first radiator 410 shown in FIG. 4 working in the satellite communication frequency band. FIG. 12 is a circular polarization gain pattern diagram of the first radiator 410 shown in FIG. 4 working in the satellite network frequency band.

[0126] As shown in FIGS. 9 and 10, the first radiator 410 can also cover multiple satellite frequency bands, such as the Beidou short message frequency band, the satellite communication frequency band, and the satellite network frequency band, under the cooperation of the first adjusting circuit 430 and the second adjusting circuit 440. When the first radiator 410 works in the Beidou short message frequency band, the S11 values of the receiving frequency band (see the curve RX in FIG. 9) and the transmitting frequency band (see the curve TX in FIG. 9) of the first radiator 410 can both be below -4 dB. When the first radiator 410 works in the satellite communication frequency band, the S11 value of the receiving frequency band (see the curve RX in FIG. 10) of the first radiator 410 can be below -3.8 dB, and the S11 value of the transmitting frequency band (see the curve TX in FIG. 10) can be below -2.4 dB. The antenna efficiency of the first radiator 410 working in the Beidou short message frequency band and the satellite communication frequency band is relatively high, which can meet the satellite antenna communication demand.

[0127] As shown in FIG. 11, when the first radiator 410 works in the satellite communication frequency band, the beam generated by the first radiator 410 can be above ±45°, and the beam generated by the first radiator 410 is relatively wide, so that the first radiator 410 can have good transmitting and receiving capabilities in a relatively wide direction. For example, the beam generated by the first radiator 410 can be ±60°, and the circular polarization gain of the first radiator 410 can be below -7dB. The receiving sensitivity of the first radiator 410 for supporting satellite communication is relatively high, the communication quality is relatively good, and the user experience is relatively good.

[0128] As shown in FIG. 12, when the first radiator 410 works in the satellite network frequency band, the beam generated by the first radiator 410 can be above ±45°, and the beam generated by the first radiator 410 is relatively wide, so that the first radiator 410 can have good transmitting and receiving capabilities in a relatively wide direction. For example, the beam generated by the first radiator 410 can be ±80°, and the circular polarization gain of the first radiator 410 can be below -7.5dB. The receiving sensitivity of the first radiator 410 for supporting satellite network is relatively high, the communication quality is relatively good, and the user experience is relatively good.

[0129] In other words, the first radiator 410 can cover multiple satellite frequency bands and cellular communication MHB main set frequency bands under the cooperation of the first adjusting circuit 430 and the second adjusting circuit 440. Please refer to FIGS. 6a and 6b again, for example, the electronic device 1000 can connect the first first switch k11 in the first adjusting circuit 430, so that the antenna device 400 can work in the transmitting frequency band of satellite communication and the b1 frequency band. The electronic device 1000 can also connect the first first switch k11 in the first adjusting circuit 430 and the first third switch k31 in the second adjusting circuit 440, so that the antenna device 400 can work in the receiving frequency band of satellite communication. The electronic device 1000 can also disconnect all the first switches 431 in the first adjusting circuit 430, and connect the second third switch k32 in the second adjusting circuit 440 or the third third switch k33 in the second adjusting circuit 440, so that the antenna device 400 can work in the transmitting frequency band or the receiving frequency band of Beidou short message. The electronic device 1000 can also disconnect all the first switches 431 in the first adjusting circuit 430, and connect the fourth third switch k34 in the second adjusting circuit 440, so that the antenna device 400 can work in the b3 frequency band. The electronic device 1000 can also connect the second first switch k12 in the first adjusting circuit 430, and connect the fourth third switch k34 in the second adjusting circuit 440, so that the antenna device 400 can work in the b41 frequency band.

[0130] It can be understood that the satellite antenna is usually arranged on the top of the electronic device in general electronic devices to facilitate the satellite communication. However, on the one hand, the top space of the electronic device is limited, which makes the satellite antenna also occupy the layout space of the cellular antenna on the top, resulting in that the sizes of the satellite antenna and the cellular antenna are both small, and the antenna performance is affected. At the same time, the space mutual coupling problem between the satellite antenna and the cellular antenna also affects the antenna performance. The first radiator 410 in the embodiment can be used to support satellite communication and cellular communication at the same time, that is, the satellite antenna and the cellular antenna can share the same radiator for communication, realizing the satellite antenna and the cellular antenna sharing the same body, so that the top space of the electronic device 1000 can be effectively saved, the other layout architecture requirements of the electronic device 1000 can be met, the performance of the electronic device 1000 is improved, and the user experience is improved.

[0131] Secondly, compared with the satellite antenna in general antenna devices having a grounding point, in order to meet the high efficiency requirement of the satellite antenna, an additional adjustment circuit needs to be arranged to improve the antenna efficiency and meet the satellite communication requirement. In the embodiment, the first radiator 410 is arranged as a floating radiator, the first radiator 410 has no grounding point and has high antenna efficiency, so that the satellite antenna communication requirement can be met while the miniaturization of the antenna device 400 is considered and the internal space of the electronic device 1000 is saved.

[0132] Secondly, compared with the general antenna device, the matching circuit is electrically connected at the position close to the feed point of the radiator, and is grounded through the matching circuit, so as to adjust the aperture of the radiator, and adjust the working frequency band of the radiator. But the frequency band switching can only be switched between adjacent frequency bands, that is, only small span frequency band switching can be realized, the resonant frequency of the radiator is fine-tuned, so that the radiator cannot cover the MHB main set frequency band and the satellite frequency band at the same time. Even if the radiator can work in the MHB main set frequency band and the satellite frequency band by adjusting the aperture of the antenna, because the frequency band switching range is large, the antenna efficiency will decrease sharply, which cannot meet the performance requirements of the satellite antenna. The antenna device 400 in the embodiment can also include a first matching circuit M1 and a first adjusting circuit 430. The first matching circuit M1 can be connected in series between the first feed point 413 of the first radiator 410 and the first feed source 420. The first adjusting circuit 430 can be connected in parallel with the first matching circuit M1. The first adjusting circuit 430 can include n first switches 431 and n first selection branches 432. Each first selection branch 432 can be provided with a second matching circuit 433. In this way, by controlling one or more switches in a connected state, the second matching circuit 433 on one or more first selection branches 432 is connected in parallel with the first matching circuit M1 to adjust the resident matching impedance of the first radiator 410, so that the first radiator 410 can switch the working frequency band in a small span and in a large span, so that the first radiator 410 can cover the MHB main set frequency band and the satellite frequency band at the same time. At the same time, the first radiator 410 switches the working frequency band by switching the resident matching impedance, even if the working frequency band is switched in a large span, the first radiator 410 can still have high antenna efficiency, so as to meet the performance requirements of the satellite antenna, and the user experience is good.

[0133] In addition, compared with a general satellite antenna, the satellite antenna needs to satisfy the performance requirements (for example, high antenna efficiency, wide beam, and the like) of the satellite antenna, needs to be symmetrically arranged on the top of the electronic device, needs to be grounded at the middle position of the antenna, and needs to be arranged with an adjusting circuit at the part close to the feeding point to adjust the first circuit to adjust the aperture of the antenna, and needs to be arranged with a second adjusting circuit at the end of the antenna away from the feeding point to improve the antenna efficiency. This makes the circuit board 500 need to arrange the adjusting circuit and the feed source at the corresponding positions of the antenna to satisfy the circuit arrangement requirements of the satellite antenna, and the positions of the adjusting circuit and the feed source are relatively dispersed, which leads to a relatively large size of the circuit board 500 and a relatively large occupation of the internal space of the electronic device 1000. In the embodiment, the first radiator 410 is a floating antenna radiator, and the first feed source 420 can feed at the end (that is, the first end in the embodiment) of the first radiator 410, the antenna efficiency and the circular polarization gain are relatively high, and the beam is relatively wide, which can satisfy the antenna performance requirements of the satellite antenna. Meanwhile, the first feed source 420, the first adjusting circuit 430, and the second adjusting circuit 440 can be arranged close to the same end of the first radiator 410, so that the circuit board 500 can arrange the first feed source 420, the first adjusting circuit 430, and the second adjusting circuit 440 in a centralized manner, thereby effectively reducing the size of the circuit board 500 and saving the internal space of the electronic device 1000.

[0134] In addition, the antenna device 400 in the embodiment can switch the working frequency band of the first radiator 410 by arranging the first adjusting circuit 430 and the second adjusting circuit 440 to cooperate with each other, so that the first radiator 410 can satisfy more working frequency bands, the number of the first selection branches 432 in the first adjusting circuit 430 is relatively small, and the number of the third selection branches 442 in the second adjusting circuit 440 is relatively small, thereby avoiding the coupling between the selection branches in the same adjusting circuit due to the relatively close distance between the selection branches, and affecting the antenna performance of the first radiator 410.

[0135] In some embodiments, referring to FIG. 13, the first long side 3113 of the frame 311 can also have a gap (not shown in the figure), and the metal part between the gap and the first gap 311a of the first short side 3111 can constitute a second radiator 450. Both ends of the second radiator 450 can be open ends. The second radiator 450 has a grounding point and can be grounded through the grounding point. The antenna device 400 can further include a third adjusting circuit 460. The third adjusting circuit 460 can be electrically connected to the second radiator 450. The third adjusting circuit 460 can be used to adjust the impedance of the second radiator 450. The second radiator 450 can be used as a parasitic branch of the first radiator 410, or as a main radiator to support communication of other frequency bands.

[0136] In some embodiments, please refer to FIG. 14, which is a structural schematic diagram of the structure shown in FIG. 13 in some embodiments. The antenna device 400 can further not include the third adjusting circuit. The second radiator 450 can serve as a parasitic branch of the first radiator 410. The second connection point 402 can also be located at the second radiator 450. The second adjusting circuit 440 can be used to adjust the resonant frequency of the parasitic branch (i.e., the second radiator 450), so as to further fine-tune the resonant frequency of the first radiator 410.

[0137] In some embodiments, please refer to FIG. 15, which is a structural schematic diagram of the structure shown in FIG. 14 in some embodiments. The first short side 3111 can further have a third gap 311c. The third gap 311c can be located at a side of the second gap 311b opposite to the first gap 311a. At this time, the second gap 311b and the third gap 311c can divide a metal segment on the first short side 3111, forming a third radiator 480 of the antenna device 400. The third gap 311c can be filled with an insulating material. The two ends of the third radiator 480 can be open ends. The third radiator 480 can have a grounding point. The grounding point can be located between the two ends of the third radiator 480. The third radiator 480 can be grounded at the grounding point. When the antenna device 400 is in operation, the third radiator 480 can serve as a parasitic branch of the first radiator 410, so as to widen the bandwidth of the antenna device 400 and improve the antenna performance. Exemplarily, the third radiator 480 can serve as a parasitic branch of the first radiator 410, widening the operating bandwidth of the first radiator 410.

[0138] In some embodiments, please refer to FIG. 16, which is a structural schematic diagram of the structure shown in FIG. 4 in some embodiments. The first gap 311a and the second gap 311b of the first short side 3111 can be symmetrically arranged about the midpoint of the first short side 3111. At this time, the distance between the first end 411 of the first radiator 410 and the midpoint of the first short side 3111 can be equal to the distance between the second end 412 and the midpoint of the first short side 3111.

[0139] In some embodiments, please refer to FIG. 17, which is a structural schematic diagram of the structure shown in FIG. 4 in some embodiments. The first gap 311a and the second gap 311b can also be located at the first long side 3113, i.e., the first radiator 410 can also be formed on the first long side 3113. In this way, by arranging the first radiator 410 on the first long side 3113, different layout requirements in the electronic device 1000 can be met.

[0140] In some embodiments, referring to FIG. 18, which is a structural schematic diagram of the structure shown in FIG. 4 in some embodiments. The third connection point 403 of the first radiator 410 can also be disposed closer to the second end 412 than the first end 411. The second adjusting circuit 440 can be used to adjust the antenna efficiency of the first radiator 410 and fine tune the resonant frequency of the antenna.

[0141] In some embodiments, referring to FIG. 19, which is a circuit topology diagram of the antenna device 400 shown in FIG. 4 in some embodiments. The antenna device 400 can also not include the second adjusting circuit 440. The first adjusting circuit 430 can also be provided with more first selection branches 432 and / or more second selection branches 435, so that the first adjusting circuit 430 can expand the range of the resident matching impedance adjustment of the first radiator 410 by controlling different one or more first switches 431 and / or different one or more second switches 434 in combination, so that the first radiator 410 can cover the cellular communication MHB main set frequency band and at least one satellite frequency band to meet the user's use requirements. Exemplarily, the first adjusting circuit 430 can include three first switches 431, three first selection branches 432, three second matching circuits 432, three second switches 434, three second selection branches 435, and three third matching circuits 436.

[0142] In other embodiments, the antenna device 400 can also include a second feed source (not shown in the figure). The first radiator 410 can also include a second feed point (not shown in the figure). The second feed point can be disposed apart from the first feed point 413, the first connection point 401, and the third connection point 403. The second feed source can feed the first radiator 410 through the second feed point. In this way, by cooperating the first feed source 420 and the second feed source to distribute the feed of the first radiator 410, the co-radiator split feed can be realized, so that the use of the radio frequency front end multi-band combiner can be reduced, which is conducive to reducing the manufacturing cost, while reducing the loss and improving the antenna performance.

[0143] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict, and any combination of the features in different embodiments is also within the protection scope of the present application, that is, the above-described multiple embodiments can also be combined as needed.

[0144] It should be noted that all the above-mentioned drawings are exemplary diagrams of the present application, and do not represent the actual size of the product. The size ratio relationship between the components in the drawings is not limited to the actual product of the present application.

[0145] The above merely describes some embodiments of the present application, and 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 in 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 (1000), characterized by, The first radiating body (410) is formed by a part of the frame (311) or is fixed to the inner side of the frame (311), and is used to support satellite frequency band communication and cellular medium-high frequency band communication, the satellite frequency band including one or more of Beidou short message frequency band, satellite communication frequency band and star network frequency band; The first radiating body (410) includes a first end (411), and the first radiating body (410) has no grounding point; the first radiating body (410) is provided with a first feeding point (413), and the distance between the first feeding point (413) and the first end (411) is less than or equal to one fourth of the length of the first radiating body (410); and the first feeding source (420) is electrically connected to the first feeding point (413).

2. The electronic device (1000) according to claim 1, characterized by, The electronic device (1000) further includes a first matching circuit (M1) and a first adjusting circuit (430), the first matching circuit (M1) is electrically connected between the first feeding source (420) and the first feeding point (413), and the electronic device (1000) further includes a first connection point (401) and a second connection point (402), the first connection point (401) is electrically connected between the first matching circuit (M1) and the first feeding point (413), and the second connection point (402) is electrically connected between the first matching circuit (M1) and the first feeding source (420). The first adjusting circuit (430) includes a first switch assembly (430a) and at least one first selection branch (432), one end of the first selection branch (432) is electrically connected to the first connection point (401) through the first switch assembly (430a), the other end is electrically connected to the second connection point (402), and the first adjusting circuit (430) is configured to selectively connect any one or more first selection branches (432) in parallel with the first matching circuit (M1) through the first switch assembly (430a), or disconnect all first selection branches (432) from the first connection point (401) through the first switch assembly (430a), so as to switch the working frequency band of the first radiating body (410).

3. The electronic device (1000) according to claim 2, characterized by, The first adjusting circuit (430) includes n first selection branches (432) and n second matching circuits (433), the first switch assembly (430a) includes n first switches, n second matching circuits (433) are arranged in one-to-one correspondence in n first selection branches (432), one end of n first selection branches (432) is electrically connected to the first connection point (401) in one-to-one correspondence through n first switches, the other end is electrically connected to the second connection point (402), and the impedance values of n second matching circuits (433) are not completely the same. Wherein, n is an integer greater than or equal to 1.

4. The electronic device (1000) according to claim 2 or 3, characterized by, The first adjusting circuit (430) further comprises a second switch assembly (430b) and at least one second selection branch (435), one end of the second selection branch (435) being electrically connected to the first connection point (401) through the second switch assembly (430b), and the other end being grounded; The first adjusting circuit (430) is further configured to selectively electrically connect any one or more of the second selection branches (435) to the first connection point (401) through the second switch assembly (430b), or disconnect all the second selection branches (435) from the first connection point (401) through the second switch assembly (430b), so as to switch the working frequency band of the first radiator (410).

5. The electronic device (1000) according to any one of claims 1 to 4, characterized in that, The electronic device (1000) further comprises a second adjusting circuit (440), the second adjusting circuit (440) comprising a third switch assembly (440a) and at least one third selection branch (442), and the electronic device (1000) further comprises a third connection point (403) located at the first radiator (410); One end of the third selection branch (442) is electrically connected to the third connection point (403), and the other end is grounded through the third switch assembly (440a), and the second adjusting circuit (440) is configured to selectively ground any one or more of the third selection branches (442) through the third switch assembly (440a), or disconnect all the third selection branches (442) from the grounding point through the third switch assembly (440a), so as to switch the working frequency band of the first radiator (410).

6. The electronic device (1000) according to claim 5, characterized by, The distance between the third connection point (403) and the first feeding point (413) is less than or equal to one half of the length of the first radiator (410).

7. The electronic device (1000) according to any one of claims 1 to 6, characterized by, The bezel (311) comprises a first long side (3113) and a first short side (3111) arranged adjacently, the first short side (3111) being located at the top of the electronic device (1000), the first radiator (410) being formed on the first short side (3111) or being fixed to the inner side of the first short side (3111).

8. The electronic device (1000) according to any one of claims 1 to 4, characterized by, The bezel (311) comprises a first long side (3113) and a first short side (3111) arranged adjacently, the first short side (3111) being located at the top of the electronic device (1000), the first radiator (410) being formed on the first short side (3111) or being fixed to the inner side of the first short side (3111), and the electronic device (1000) further comprises a second radiator (450) formed by a part of the first long side (3113) or fixed to the inner side of the first long side (3113); The electronic device (1000) further comprises a second adjusting circuit (440), the second adjusting circuit (440) comprises a third switch assembly (440a) and at least one third selection branch (442), and the electronic device (1000) further comprises a third connection point (403) located at the second radiator (450). One end of the third selection branch (442) is electrically connected to the third connection point (403), and the other end is grounded through the third switch assembly (440a), the second adjusting circuit (440) is configured to selectively ground any one or more third selection branches (442) through the third switch assembly (440a), or disconnect all the third selection branches (442) from the ground point through the third switch assembly (440a), so as to switch the working frequency band of the first radiator (410).

9. The electronic device (1000) according to claim 7 or 8, characterized by, The first short side (3111) comprises a first gap (311a) and a second gap (311b) arranged at intervals, and the part of the first short side (3111) between the first gap (311a) and the second gap (311b) constitutes the first radiator (410), and the distance between the first gap (311a) and the midpoint of the first short side (3111) is not equal to the distance between the second gap (311b) and the midpoint of the first short side (3111).

10. The electronic device of claim 9, wherein, The first radiator (410) further comprises a second end portion (412), and the first end portion (411) is arranged closer to the first gap (311a) than the second end portion (412), and the distance between the first gap (311a) and the midpoint of the first short side (3111) is greater than the distance between the second gap (311b) and the midpoint of the first short side (3111).

11. The electronic device (1000) according to claim 9 or 10, characterized by, The first short side (3111) further comprises a third gap (311c) located on the side of the second gap (311b) away from the first gap (311a), and the part of the first short side (3111) between the third gap (311c) and the second gap (311b) constitutes a third radiator (480).

12. The electronic device (1000) according to any one of claims 1 to 11, characterized by, The electronic device (1000) further comprises a second feed source, and the first radiator (410) further comprises a second feeding point arranged at intervals with the first feeding point (413), and the second feed source is electrically connected to the second feeding point.

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