Electronic device

Abstract

According to the electronic equipment, a second radiating body and a first radiating body are arranged at an interval, and the second radiating body comprises a second free end, a second feeding point, a first grounding point, a second grounding point, a third feeding point and a third free end; the first feed source is electrically connected to the first radiator and excites the first radiator to support receiving and transmitting of a first wireless signal and excites the first radiator and part of the second radiator to support receiving and transmitting of a second wireless signal together, and the first radiator is a main radiator of the second wireless signal; the second feed source is electrically connected to the second feed point and excites the first radiation section between the second free end and the first grounding point to support receiving and transmitting of a third wireless signal and a fourth wireless signal; the third feed source is electrically connected to the third feed point and excites the second radiation section between the second grounding point and the third free end to support a fifth wireless signal, and the frequency band of the fifth wireless signal and the frequency band of the second wireless signal are at least partially overlapped. Based on this, the electronic device can be miniaturized and can have better antenna performance.

Description

Technical Field

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

[0002] With the development of communication technology, electronic devices such as smart phones can realize more and more functions, the communication modes of electronic devices are more diversified, and the number of antenna radiators installed inside electronic devices is also increasing.

[0003] However, with the development of electronic technology, electronic devices are becoming increasingly miniaturized, thinner and lighter, and the internal space of electronic devices is also becoming smaller and smaller. How to reasonably set multiple antennas of electronic devices has become a difficult problem. Summary of the invention

[0004] The present application provides an electronic device, wherein multiple radiators of the electronic device can be designed to be miniaturized.

[0005] The present application provides an electronic device, including:

[0006] A first radiator comprises a first free end, a first feeding point and a first grounding end which are arranged in sequence, wherein the first grounding end is grounded;

[0007] A second radiator comprises a second free end, a second feeding point, a first grounding point, a second grounding point, a third feeding point and a third free end which are arranged in sequence, wherein the second free end is spaced apart from the first free end, the third free end extends in a direction away from the first free end, and the first grounding point and the second grounding point are grounded;

[0008] A first feed source, electrically connected to the first feeding point, the first feed source is used to excite the first radiator to support the transmission and reception of the first wireless signal, and to excite the first radiator and part of the second radiator to jointly support the transmission and reception of the second wireless signal, wherein the first radiator is the main radiator of the second wireless signal;

[0009] A second feed source, electrically connected to the second feed point, the second feed source being used to excite a first radiation section between the second free end and the first ground point to support the transmission and reception of a third wireless signal and a fourth wireless signal; and

[0010] A third feed source is electrically connected to the third feeding point, and is used to excite the second radiation segment between the second grounding point and the third free end to support the transmission and reception of a fifth wireless signal, wherein the frequency band of the fifth wireless signal and the frequency band of the second wireless signal at least partially overlap.

[0011] The first radiator and the second radiator of the electronic device of the present application can support the transmission and reception of five wireless signals under the stimulation of three feed sources, the radiator can be multiplexed, and the electronic device can be miniaturized. At the same time, the first radiator and the second radiator can be separated by the first radiator, so that the distance between the first radiator and the second radiator is relatively far, and the mutual interference between the first wireless signal supported by the first radiator, the second wireless signal and the fifth wireless signal supported by the second radiator is relatively small; and the first grounding point and the second grounding point are also set between the first radiator and the second radiator. The first grounding point and the second grounding point can further improve the isolation between the first wireless signal and the second wireless signal and the fifth wireless signal. Even if the frequency band of the second wireless signal overlaps at least partially with the frequency band of the fifth wireless signal, the electronic device of the present application can also achieve the same frequency isolation of the second wireless signal and the fifth wireless signal, so that the electronic device still has better radiation performance when supporting multiple wireless signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0013] Figure 1 A first structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0014] Figure 2 A schematic diagram of current distribution of an electronic device supporting a first wireless signal provided in an embodiment of the present application.

[0015] Figure 3 A schematic diagram of current distribution of an electronic device supporting a second wireless signal provided in an embodiment of the present application.

[0016] Figure 4 A second structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0017] Figure 5 A schematic diagram of an S-parameter curve of a first wireless signal and a second wireless signal supported by an electronic device provided in an embodiment of the present application.

[0018] Figure 6 A schematic diagram of an antenna efficiency curve supporting a first wireless signal and a second wireless signal of an electronic device provided in an embodiment of the present application.

[0019] Figure 7 A schematic diagram of current distribution when the electronic device provided in an embodiment of the present application supports a third wireless signal.

[0020] Figure 8 A schematic diagram of current distribution when the electronic device provided in an embodiment of the present application supports a fourth wireless signal.

[0021] Fig. 9 A schematic diagram of an S-parameter curve and an antenna efficiency curve when the electronic device provided in an embodiment of the present application supports a third wireless signal and a fourth wireless signal.

[0022] Fig.10 A schematic diagram of current distribution when the electronic device provided in an embodiment of the present application supports a fifth wireless signal.

[0023] Fig.11 A third structural schematic diagram of the electronic device provided in an embodiment of the present application.

[0024] Fig.12 for Fig.11 A schematic diagram of a first electrical connection of the first matching circuit.

[0025] Fig.13 for Fig.11 A schematic diagram of a second electrical connection of the first matching circuit.

[0026] Fig.14 A schematic diagram of an S-parameter curve and an antenna efficiency curve when the electronic device provided in an embodiment of the present application supports a fifth wireless signal.

[0027] Fig.15 A schematic diagram of an S parameter curve and an antenna efficiency curve when the electronic device provided in an embodiment of the present application supports the first wireless signal to the fifth wireless signal.

[0028] Fig.16 A fourth structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0029] Fig.17 A fifth structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0030] Fig.18 An application scenario diagram of an electronic device provided in an embodiment of the present application.

[0031] Fig.19 A schematic diagram of the antenna efficiency of the first antenna of the electronic device provided in an embodiment of the present application in different scenarios. DETAILED DESCRIPTION

[0032] The following will be combined with the embodiments of this application Figures 1 to 19, the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0033] The present application provides an electronic device, which may be a smart phone, a tablet computer, or a gaming device, an augmented reality (AR) device, an automotive device, a data storage device, an audio player, a video player, a laptop, a desktop computing device, etc. Figure 1 , Figure 1 The first structural diagram of the electronic device 10 provided in the embodiment of the present application is as follows. The electronic device 10 includes a first radiator 110 , a second radiator 120 , a first feed source 130 , a second feed source 140 and a third feed source 150 .

[0034] The first radiator 110 includes a first free end 111, a first feeding point 112 and a first grounding end 113 arranged in sequence, and the first grounding end 113 is grounded. The second radiator 120 is spaced apart from the first radiator 110 on the side where the first free end 111 of the first radiator 110 is located, and the second radiator 120 includes a second free end 121, a second feeding point 122, a first grounding point 123, a second grounding point 124, a third feeding point 125 and a third free end 126 arranged in sequence, the second free end 121 is spaced apart from the first free end 111, the third free end 126 extends in a direction away from the second free end 121 and the first free end 111, the first grounding point 123 and the second grounding point 124 are grounded, a first radiation section 127 may be formed between the second free end 121 and the first grounding point 123, and a second radiation section 128 may be formed between the third free end 126 and the second grounding point 124. The first feed source 130 is electrically connected to the first feed point 112 of the first radiator 110. The first feed source 130 is used to stimulate the first radiator 110 to support the transceiving of the first wireless signal (transceiving includes receiving and transmitting, which will not be repeated below). The first feed source 130 is also used to stimulate the first radiator 110 and part of the second radiator 120 to jointly support the transceiving of the second wireless signal, and the first radiator 110 is the main radiator of the second wireless signal. The second feed source 140 is electrically connected to the second feed point 122. The second feed source 140 is used to stimulate the first radiation section 127 between the second free end 121 and the first grounding point 123 of the second radiator 120 to support the transceiving of the third wireless signal and the fourth wireless signal. The third feed source 150 is electrically connected to the third feed point 125. The third feed source 150 is used to stimulate the second radiation section 128 between the second grounding point 124 and the third free end 126 to support the fifth wireless signal. Among them, the frequency band of the fifth wireless signal and the frequency band of the second wireless signal at least partially overlap.

[0035] It is understandable that the electronic device 10 may further include a ground plane 160, and the first grounding end 113 of the first radiator 110, the first grounding point 123 and the second grounding point 124 of the second radiator 120 may be electrically connected to the ground plane 160 through structures such as grounding springs, grounding screws, and pads to achieve grounding. Among them, the ground plane 160 may be a plane or structure with a zero potential. The ground plane 160 may be formed by a conductor, a printed circuit, or a metal printed layer in the electronic device 10; the ground plane 160 may be formed on a main board, a small board, a frame (such as the middle board 320 described later) or other supporting boards of the electronic device 10. The specific setting position of the ground plane 160 is not limited in the embodiment of the present application.

[0036] It is understandable that more grounding points may be provided between the first grounding point 123 and the second grounding point 124 of the second radiator 120 to be electrically connected to the ground plane 160 and to achieve grounding. For example, the entire area between the first grounding point 123 and the second grounding point 124 may be grounded. Of course, a gap may also be provided between the first grounding point 123 and the second grounding point 124, so that the second radiator 120 includes a first radiation section 127 and a second radiation section 128 arranged at intervals. In this case, a non-conductive material may be filled in the gap to maintain the integrity and structural strength of the second radiator 120.

[0037] It can be understood that the first radiator 110 and the second radiator 120 are conductor structures that can support wireless signal transmission and reception. The first radiator 110 and the second radiator 120 can be, but are not limited to, metal branch radiation structures, printed circuit board radiation structures, flexible circuit board radiation structures, laser direct forming radiation structures, silver paste spraying radiation structures, etc. The embodiment of the present application does not limit the specific structures of the first radiator 110 and the second radiator 120.

[0038] It can be understood that the first feed 130, the second feed 140 and the third feed 150 can be signal sources of the electronic device 10. Under the stimulation of the first feed 130, the first radiator 110 can support the transmission and reception of the first wireless signal and the second wireless signal. Under the stimulation of the second feed 140, the second radiator 120 can support the transmission and reception of the third wireless signal and the fourth wireless signal; under the stimulation of the third feed 150, the third radiator can support the transmission and reception of the fifth wireless signal, and the first wireless signal to the fifth wireless signal can be wireless signals of different frequency bands. Thus, under the stimulation of the three feeds, the first radiator 110 and the second radiator 120 can support the transmission and reception of multiple wireless signals.

[0039] In the electronic device 10 of the embodiment of the present application, the first radiator 110 and the second radiator 120 can support the reception and transmission of five wireless signals under the stimulation of three feed sources, the radiators can be multiplexed, and the electronic device 10 can be miniaturized. At the same time, the first radiation section 127 can be spaced between the first radiator 110 and the second radiation section 128 of the second radiator 120, so that the distance between the first radiator 110 and the second radiation section 128 is relatively far, and the mutual interference between the first wireless signal and the second wireless signal supported by the first radiator 110 and the fifth wireless signal supported by the second radiation section 128 is relatively small; and a first grounding point 123 and a second grounding point 124 are also grounded between the first radiator 110 and the second radiation section 128. The first grounding point 123 and the second grounding point 124 can further improve the isolation between the first wireless signal, the second wireless signal and the fifth wireless signal. Even if the frequency band of the second wireless signal and the frequency band of the fifth wireless signal at least partially overlap, the electronic device 10 of the present application can also achieve co-frequency isolation of the second wireless signal and the fifth wireless signal, so that the electronic device 10 still has better radiation performance when supporting multiple wireless signals.

[0040] Among them, please refer to Figure 2 , Figure 2 A schematic diagram of a current distribution of the electronic device 10 supporting the first wireless signal provided in the embodiment of the present application. The first feed source 130 can excite the entire first radiator 110 to generate a first resonant mode to support the transmission and reception of the first wireless signal, and the first feed source 130 and the first radiator 110 can form a first antenna supporting the first wireless signal.

[0041] It is understandable that the first resonance mode can form a first resonance current I1 on the first radiator 110 , and the first resonance current I1 can flow from the first ground terminal 113 of the first radiator 110 to the first free end 111 . The first resonance mode can be a quarter-wavelength mode of the first radiator 110 .

[0042] It can be understood that the first wireless signal can be, but is not limited to, a wireless fidelity (Wireless Fidelity, referred to as Wi-Fi) signal, a low frequency (Low frequency band, referred to as LB, frequency less than 1000MHz) signal, a middle frequency band and high frequency band (Middle frequency band and High frequency band, referred to as MHB, 1000MHz-3000MHz, frequency between 1000MHz-3000MHz) signal, a high frequency (High frequency band, referred to as HB, frequency greater than 3000MHz) signal, an ultra-high frequency (Ultra High Frequency, referred to as UHB, frequency between 3000MHz and 10000MHz) signal, a global positioning system (Global Positioning System, referred to as GPS) signal, a third-generation mobile communication technology (3rd-Generation, referred to as 3G), a fourth-generation mobile communication technology (4th-Generation, referred to as 4G), a fifth-generation mobile communication technology (5th-Generation, referred to as 5G), a near field communication (Near field communication, referred to as NFC) signal, a Bluetooth (Blue tooth, referred to as BT) signal, or an ultra-wideband communication (Ultra Wide Band, referred to as UWB) signal. For example, the first wireless signal can be a low-frequency signal. The embodiment of the present application does not specifically limit the first wireless signal.

[0043] It should be noted that the first feed source 130 may also excite all or part of the first radiator 110 to support the transmission and reception of the first wireless signal in other resonance modes, which is not limited in the embodiment of the present application.

[0044] Among them, please refer to Figure 3 , Figure 3 A schematic diagram of a current distribution of the electronic device 10 supporting a second wireless signal provided in an embodiment of the present application. The second radiator 120 can be electromagnetically coupled to the first radiator 110, the first feed 130 can excite all of the first radiators 110 and part of the second radiators 120 to generate a second resonant mode and a third resonant mode to jointly support the transmission and reception of the second wireless signal, and the first feed 130, the first radiator 110 and part of the second radiator 120 can form a second antenna supporting the second wireless signal.

[0045] It is understandable that if Figure 3As shown in the middle figure (a), the first feed source 130 can excite all the first radiators 110 and the first radiation section 127 between the second free end 121 and the first grounding point 123 of the second radiator 120 to jointly generate a second resonant mode, and the second resonant mode can form a second resonant current I2. The second resonant current I2 can generate a first current zero point area A1 on the first radiator 110 and the first radiation section 127. The second resonant current I2 can flow from the first current zero point area A1 to the first free end 111 and electromagnetically couple to the first radiation section 127 and continue to flow to the first grounding point 123. The second resonant current I2 can also flow from the first current zero point area A1 to the first grounding end 113, so that the second resonant mode can be a three-quarter wavelength mode of the first radiator 110 and a mode of the first radiation section 127 with a co-directional current. The so-called current zero point area refers to the area where the current intensity of the resonant current on the radiator is the weakest. Since the resonant current is a periodic excitation current, the resonant current can form one or more current zero point areas on the radiator. In the current simulation diagram, the area with the lightest current distribution color is the current zero point area. The current intensity of the second resonant current I2 distributed on the first radiator 110 is greater than the current intensity of the second resonant current I2 distributed on the first radiation section 127, so that the first radiator 110 is the main radiator of the second wireless signal.

[0046] It is understandable that if Figure 3 As shown in the middle figure (b), the first feed source 130 can excite all the first radiators 110 and the first radiating section 127 to jointly generate a third resonance mode, and the third resonance mode can form a third resonance current I3, and the third resonance current I3 can generate a second current zero point area A2 on the first radiator 110 and the first radiating section 127. The third resonance current I3 can flow from the first ground terminal 113 to the second current zero point area A2, and from the first free end 111 to the second current zero point area A2, and electromagnetically couple to the first radiating section 127 and flow from the second free end 121 to the first ground point 123, so that the third resonance mode can be formed by a mode of the first radiation section 127 with a three-quarter wavelength mode of the first radiator 110 and accompanied by a reverse current. Among them, the current intensity of the third resonance current I3 distributed on the first radiator 110 is greater than the current intensity of the third resonance current I3 distributed on the first radiating section 127, so that the first radiator 110 is the main radiator of the second wireless signal.

[0047] It can be understood that, under the excitation of the second resonant mode and the third resonant mode, the first feed source 130 can excite the first radiator 110 and the first radiating section 127 to jointly support the second wireless signal in a dual mode of a high-order radiation mode and a balanced mode. The second resonant mode and the third resonant mode are resonant modes with opposite flow directions, and the first current zero point region A1 generated on the first radiator 110 by the second resonant mode can overlap with the second current zero point region A2 generated on the first radiator 110 by the third resonant mode.

[0048] It is understandable that the second wireless signal may be, but is not limited to, a Wi-Fi signal, an LB signal, an MHB signal, an HB signal, an UHB signal, a GPS signal, a 3G signal, a 4G signal, a 5G signal, an NFC signal, a Bluetooth signal, or a UWB signal. For example, the second wireless signal may be a 2.4G Wi-Fi signal. The embodiment of the present application does not specifically limit the second wireless signal.

[0049] It should be noted that the first feed source 130 can also excite the first radiator 110 and the first radiating section 127 to support the transmission and reception of the second wireless signal in other resonance modes, which is not limited in the embodiment of the present application.

[0050] In the electronic device 10 of the embodiment of the present application, the first feed source 130 can independently excite the first radiator 110 to support the transmission and reception of the first wireless signal; the first feed source 130 can also independently excite the first radiator 110 and the first radiating section 127 to support the transmission and reception of the second wireless signal; the first feed source 130 can also simultaneously excite the first radiator 110 to support the transmission and reception of the first wireless signal, and excite the first radiator 110 and the first radiating section 127 to support the transmission and reception of the second wireless signal. At this time, the first feed source 130 can achieve isolation of the excitation signals corresponding to the first wireless signal and the second wireless signal through devices such as a frequency divider and a power divider so that the first radiator 110 can simultaneously support the transmission and reception of the first wireless signal and the second wireless signal, the first radiator 110 can be multiplexed, and a miniaturized design of the electronic device 10 can be achieved.

[0051] Among them, please refer to Figure 4 , Figure 4 The second structural diagram of the electronic device 10 provided in the embodiment of the present application. The electronic device 10 may further include a switching circuit 170 .

[0052] The switching circuit 170 may be electrically connected to the first radiator 110. For example, the first radiator 110 may further include an electrical connection point 114 disposed between the first free end 111 and the first ground end 113, one end of the switching circuit 170 may be electrically connected to the electrical connection point 114, and the other end of the switching circuit 170 may be electrically connected to the ground plane 160 to achieve grounding. The switching circuit 170 may perform a switching operation to adjust the frequency of the first resonant mode, so that the first radiator 110 may support first wireless signals of different frequency bands under the excitation of the first feed source 130. For example, under the switching action of the switching circuit 170, the first radiator 110 may support low-frequency signals of different frequency bands, for example, it may support low-frequency signals of the B5 frequency band (824MHz-894MHz), the B8 frequency band (880MHz-960MHz) or the B28 frequency band (703MHz to 803MHz).

[0053] It is understandable that the switching circuit 170 may include multiple switching branches, and the switching circuit 170 may switch between the multiple switching branches to perform the switching operation. Each switching branch may include, but is not limited to, an indefinite number of inductors, capacitors, switches, and other components. The embodiment of the present application does not limit the specific structure of the switching circuit 170.

[0054] It is understandable that the specific position where the electrical connection point 114 is electrically connected to the first radiator 110 can be designed so that the switching operation of the switching circuit 170 has no effect on the second wireless signal supported by the first radiator 110. For example, when the first feed source 130 excites the first radiator 110 to support the second wireless signal, at least one current strong point area A3 can be formed on the first radiator 110, and the electrical connection point 114 can be set at a current strong point area A3, so that the first feed source 130 excites the first radiator 110 to support the first wireless signal of different frequency bands, and the first feed source 130 excites the first radiator 110 and the first radiation section 127 to jointly support the second wireless signal of the same frequency band. Among them, when the first radiator 110 and the first radiation section 127 jointly support the second wireless signal in the second radiation mode and the third radiation mode, the current strong point area A3 where the electrical connection point 114 is located can be the current strong point area A3 formed by the second radiation mode and the third radiation mode.

[0055] It can be understood that the so-called current strong point area A3 refers to the area with the largest current intensity formed on the radiator by the resonant current generated when the radiator supports the wireless signal; since the resonant current is a periodic excitation current, when the radiator has a certain length, the resonant current can generate one or more current strong point areas A3 on the radiator; wherein, on the current simulation diagram, the darkest one or several areas are often the current strong point areas A3 generated by the resonant current on the radiator. Since the current strong point area A3 is also an electric field weak point area or an electric wall area, when the electrical connection point 114 is set in a current strong point area A3 when the first radiator 110 supports the second wireless signal, when the switching circuit 170 performs a switching operation and switches between different switching branches, the switching operation is not easy to affect the second wireless signal supported by the first radiator 110, and the second wireless signal can be resident.

[0056] For example, please refer to Figure 5 and Figure 6 , Figure 5 A schematic diagram of an S parameter curve of a first wireless signal and a second wireless signal supported by an electronic device 10 provided in an embodiment of the present application, Figure 6 A schematic diagram of an antenna efficiency curve supporting a first wireless signal and a second wireless signal of an electronic device 10 provided in an embodiment of the present application. Figure 5 The middle curve M1 is an S parameter curve of the electronic device 10 supporting the first wireless signal of the B5 frequency band and the second wireless signal of the 2.4G Wi-Fi, the curve M2 is an S parameter curve of the electronic device 10 supporting the first wireless signal of the B8 frequency band and the second wireless signal of the 2.4G Wi-Fi, and the curve M3 is an S parameter curve of the electronic device 10 supporting the first wireless signal of the B28 frequency band and the second wireless signal of the 2.4G Wi-Fi. Figure 5 It can be seen from the P1 area and the P2 area in that when the first radiator 110 supports the first wireless signal of different frequency bands, the frequency of the second wireless signal supported by the first radiator 110 and the first radiation section 127 is basically unchanged, so that the solution of the present application can achieve that when the LB frequency band is switched, the 2.4G Wi-Fi signal remains resident. And, as Figure 6 As shown, Figure 6 The middle curves M4 to M6 are radiation efficiency curves corresponding to the above curves M1 to M3, and the curves M7 to M10 are system efficiency curves corresponding to the above curves M1 to M3. Figure 6 It can be seen from the multiple curves in FIG. 1 that the electronic device 10 also has a high antenna efficiency when supporting the first wireless signal and the second wireless signal.

[0057] It can be understood that when the first radiator 110 supports the first wireless signal in the first resonance mode of the quarter-wavelength mode, and the first radiator 110 and the first radiation segment 127 jointly support the second wireless signal in the second resonance mode of the three-quarter wavelength mode accompanied by the same direction current and the reverse current and the third resonance module, the first distance between the electrical connection point 114 and the first free end 111 can be set to be approximately equal to one-third of the second distance between the first ground end 113 and the first free end 111 (for example, the difference between the first distance and one-third of the second distance can be less than one-eighth of the second distance). At this time, the position of the electrical connection point 114 can be located in the current strong point area A3 of the second resonance mode and the third resonance mode.

[0058] It is understandable that the electrical connection point 114 of the first radiator 110 may overlap with the first feeding point 112 , and one end of the switching circuit 170 may be electrically connected between the first feeding point 112 and the first feed source 130 , which may simplify the structure of the first radiator 110 .

[0059] The electronic device 10 of the embodiment of the present application is provided with a switching circuit 170. Under the action of the switching circuit 170, the first feed source 130 can stimulate the first radiator 110 to support first wireless signals of different frequency bands, and the electronic device 10 can support more frequency bands, and the application range of the electronic device 10 is wider. At the same time, when the electrical connection point 114 is set in the current strong point area A3 when the first radiator 110 supports the second wireless signal, when the switching circuit 170 performs the switching operation, the switching operation is not easy to affect the second wireless signal supported by the first radiator 110, and the second wireless signal can be resident.

[0060] The electrical connection point 114 of the first radiator 110 may not be set in the current strong point area A3 when the first radiator 110 supports the second wireless signal. For example, the electrical connection point 114 may be set near the first free end 111 of the first radiator 110, and the switching circuit 170 may include a plurality of grounded large inductance switching branches. When the switching circuit 170 switches between the plurality of large inductance switching branches, the first feed source 130 excites the first radiator 110 to support first wireless signals of different frequency bands, and the first feed source 130 excites the first radiator 110 and the first radiation section 127 to jointly support the second wireless signal of the same frequency band.

[0061] It can be understood that the electrical connection point 114 is arranged near the first free end 111, which may mean that the distance between the electrical connection point 114 and the first free end 111 is less than or equal to one eighth of the distance between the first free end 111 and the first ground end 113, so that the electrical connection point 114 is arranged closer to the first free end 111.

[0062] It can be understood that the large inductance switching branch may refer to an equivalent inductance value of the switching branch greater than or equal to 10 nanohenries, for example, the equivalent inductance value of the large inductance switching branch may be greater than 20 nanohenries. The large inductance switching branch may include one or more inductance elements and capacitance elements, and any structure that can make the equivalent inductance value of the switching branch greater than 10 nanohenries is within the protection scope of the embodiments of the present application.

[0063] It can be understood that when the electrical connection point 114 of the first radiator 110 is arranged close to the first free end 111 and returns to the ground through the switching branch with large inductance, at this time, the switching branch with large inductance is equivalent to a path for the low-frequency first wireless signal and is equivalent to a nearly open circuit for the second wireless signal of the 2.4G Wi-Fi signal. Therefore, when the switching circuit 170 performs a switching operation and switches between different switching branches, the switching operation is not easy to affect the second wireless signal supported by the first radiator 110, and the second wireless signal can be resident.

[0064] The electrical connection point 114 of the first radiator 110 of the present application is arranged close to the first free end 111 and is returned to the ground through a switching branch with large inductance, so that the second wireless signal can be permanently stationary. Moreover, when the first radiator 110 is arranged inside the electronic device 10, the electrical connection point 114 and the switching circuit 170 are more easily arranged corresponding to the battery compartment, so that the switching circuit 170 is more easily arranged inside the electronic device 10.

[0065] Among them, please refer to Figure 7 , Figure 7 A schematic diagram of current distribution when the electronic device 10 provided in the embodiment of the present application supports a third wireless signal. The second feed source 140 can excite the first radiation section 127 of the second radiator 120 to generate a fourth resonant mode and support the transmission and reception of the third wireless signal, and the second feed source 140 and the first radiation section 127 can form a third antenna supporting the third wireless signal.

[0066] It can be understood that the fourth resonance mode can form a fourth resonance current I4 on the first radiation segment 127, and the fourth resonance current I4 can flow from the first grounding point 123 of the first radiation segment 127 to the second free end 121. The fourth resonance mode can be a quarter-wavelength mode of the first radiation segment 127.

[0067] Among them, please refer to Figure 8 , Figure 8A schematic diagram of current distribution when the electronic device 10 provided in the embodiment of the present application supports a fourth wireless signal. The second feed source 140 can excite the radiation section (a part of the first radiation section 127) between the second free end 121 and the second feeding point 122 of the second radiator 120 to generate a fifth resonance mode and support the transmission and reception of the fourth wireless signal, and the second feed source 140 and the radiation section between the second free end 121 and the second feeding point 122 can form a fourth antenna supporting the fourth wireless signal.

[0068] It is understandable that the fifth resonance mode can form a fifth resonance current I5 in the radiation section between the second free end 121 and the second feeding point 122 of the second radiator 120 , and the fifth resonance current I5 can flow from the second feeding point 122 to the second free end 121 .

[0069] It is understandable that the third wireless signal and the fourth wireless signal may be, but are not limited to, Wi-Fi signals, LB signals, MHB signals, HB signals, UHB signals, GPS signals, 3G signals, 4G signals, 5G signals, NFC signals, Bluetooth signals or UWB signals. For example, the third wireless signal may be a signal in the N78 frequency band (3300MHz-3800MHz), and the fourth wireless signal may be a 5G Wi-Fi signal. At this time, the frequency intervals between the third wireless signal and the fourth wireless signal and the low-frequency first wireless signal and the second wireless signal of the 2.4G Wi-Fi signal are relatively far, and the third wireless signal and the fourth wireless signal are not easy to interfere with the first wireless signal and the second wireless signal. It should be noted that the embodiment of the present application does not specifically limit the third wireless signal and the fourth wireless signal.

[0070] It is understandable that the second feed source 140 can also excite all or part of the first radiation section 127 to support the transmission and reception of the third wireless signal or the fourth wireless signal in other resonance modes, and the embodiments of the present application are not limited to this.

[0071] It is understandable that the second feed source 140 can independently excite the first radiation section 127 to support the transmission and reception of the third wireless signal, the second feed source 140 can independently excite the radiation section between the second free end 121 and the second feeding point 122 to support the transmission and reception of the fourth wireless signal, and the second feed source 140 can also simultaneously excite the first radiation section 127 to support the transmission and reception of the third wireless signal and the fourth wireless signal. For example, please refer to Fig. 9 , Fig. 9 A schematic diagram of an S-parameter curve and an antenna efficiency curve when the electronic device 10 provided in an embodiment of the present application supports a third wireless signal and a fourth wireless signal. Fig. 9The middle curve M10 is the S11 parameter curve when the third antenna and the fourth antenna are working, and the curves M11 and M12 are the radiation efficiency curve and the system efficiency curve when the third antenna and the fourth antenna are working, respectively. From the curves M10 to M12, it can be seen that the antenna performance of the third antenna and the fourth antenna is better when they are working.

[0072] It can be understood that the length of the first radiation section 127 between the first grounding point 123 and the second free end 121 can be slightly greater than one-quarter of the wavelength corresponding to the third wireless signal, and slightly shorter than one-quarter of the wavelength corresponding to the second wireless signal, so that the second antenna and the third antenna reuse the first radiation section 127 as a radiation structure, and the first radiation section 127 at this length can take into account the second antenna and the third antenna. For example, the difference between the length of the first radiation section 127 and one-quarter of the wavelength corresponding to the third wireless signal can be between one-thirty-sixth and one-forty-eighth of the wavelength corresponding to the third wireless signal, and the difference between one-quarter of the wavelength corresponding to the second wireless signal and the length of the first radiation section 127 can be between one-thirty-sixth and one-forty-eighth of the wavelength corresponding to the second wireless signal. Of course, the length of the first radiation section 127 can also be other lengths, and in this case, it can be adjusted through other matching circuits and filtering circuits to take into account the second antenna and the third antenna, and the embodiments of the present application are not limited to this.

[0073] The third antenna and the fourth antenna in the embodiment of the present application reuse the first radiation section 127 of the second radiator 120 as a radiation structure to support the third wireless signal and the fourth wireless signal, which can further realize the miniaturized design of the electronic device 10.

[0074] Among them, please refer to Fig.10 , Fig.10 A schematic diagram of current distribution when the electronic device 10 provided in the embodiment of the present application supports the fifth wireless signal. The third feed source 150 can excite the second radiating section 128 of the second radiator 120 to generate the sixth resonant mode and the seventh resonant mode to jointly support the fifth wireless signal, and the third feed source 150 and the second radiating section 128 can form a fifth antenna supporting the fifth wireless signal.

[0075] It is understandable that if Fig.10 As shown in Figure (c), the third feed source 150 can excite the entire second radiation section 128 to generate a sixth resonant mode. The sixth resonant mode can form a sixth resonant current I6 on the second radiation section 128. The sixth resonant current I6 can flow from the second grounding point 124 to the third free end 126. The sixth resonant mode can be a quarter-wavelength mode of the second radiation section 128.

[0076] It is understandable that if Fig.10As shown in Figure (d), the third feed source 150 can excite the radiation section between the third feeding point 125 and the third free end 126 to produce the seventh resonance mode. At this time, the third feed source 150 can excite part of the second radiation section 128 to produce the seventh resonance mode. The seventh resonance mode can form a seventh resonance current I7 on part of the second radiation section 128. The seventh resonance current I7 can flow from the third feeding point 125 to the third free end 126.

[0077] It can be understood that the third feed source 150 can excite the second radiation segment 128 to generate the sixth resonance mode or the seventh resonance mode alone, and the third feed source 150 can also simultaneously excite the second radiation segment 128 to generate the sixth resonance mode and the seventh resonance mode, so that the fifth wireless signal can have a wider frequency band.

[0078] It is understandable that the frequency band of the fifth wireless signal may completely overlap with the frequency band of the second wireless signal, and the two may be wireless signals of the same frequency band; or the frequency band of the fifth wireless signal may partially overlap with the frequency band of the second wireless signal, so that the fifth wireless signal and the second wireless signal overlap in part of the frequency band. For example, the fifth wireless signal may be an MHB signal, and the second wireless signal may be a 2.4G Wi-Fi signal, and the two may overlap in part of the frequency band.

[0079] It is understandable that the fifth wireless signal may also be, but is not limited to, a Wi-Fi signal, an LB signal, an HB signal, an UHB signal, a GPS signal, a 3G signal, a 4G signal, a 5G signal, an NFC signal, a Bluetooth signal, or a UWB signal. The embodiment of the present application does not specifically limit the fifth wireless signal.

[0080] Among them, please refer to Fig.11 , Fig.11 This is a third structural diagram of the electronic device 10 provided in an embodiment of the present application. The electronic device 10 may further include a matching circuit, for example, a first matching circuit 181 .

[0081] The first matching circuit 181 can perform broadband matching on the sixth resonance mode and the seventh resonance mode, so that the fifth wireless signal can cover wireless signals of more frequency bands, for example, the fifth wireless signal can cover all medium and high frequency wireless signals.

[0082] like Fig.12 As shown, Fig.12 for Fig.11The first electrical connection schematic diagram of the first matching circuit 181 shown, the first matching circuit 181 includes an inductance element connected in series between the third feed source 150 and the third feed point 125 and a capacitance element connected in parallel between the third feed source 150 and the third feed point 125, for example, the first matching circuit 181 includes a first inductance element 1811, a second inductance element 1812 and a first capacitance element 1813, the first inductance element 1811 and the second inductance element 1812 are connected in series between the third feed source 150 and the third feed point 125 (i.e., the second radiation section 128), one end of the first capacitance element 1813 is electrically connected between the first inductance element 1811 and the second inductance element 1812, and the other end of the first capacitance element 1813 is grounded. At this time, the first matching circuit 181 can perform broadband matching on the sixth resonant mode and the seventh resonant mode, so that the fifth wireless signal covers all medium and high frequency wireless signals.

[0083] like Fig.13 As shown, Fig.13 for Fig.11 The second electrical connection diagram of the first matching circuit 181, the first matching circuit 181 includes a capacitor connected in series between the third feed source 150 and the third feed point 125 and an inductor connected in parallel between the third feed source 150 and the third feed point 125, for example, the first matching circuit 181 includes a second capacitor 1814, a third capacitor 1815 and a third inductor 1816, the second capacitor 1814 and the third capacitor 1815 are connected in series between the third feed source 150 and the third feed point 125 (i.e., the second radiation section 128), one end of the third inductor 1816 is electrically connected between the first inductor 1811 and the second inductor 1812, and the other end of the third inductor 1816 is grounded. At this time, the first matching circuit 181 can also perform broadband matching on the sixth resonant mode and the seventh resonant mode, so that the fifth wireless signal covers all medium and high frequency wireless signals.

[0084] It should be noted that the first matching circuit 181 is not limited to the above structure. Any structure in which all the inductance elements included in the first matching circuit 181 are connected in series between the third feed source 150 and the third feeding point 125, and all the capacitance elements are connected in parallel between the third feed source 150 and the third feeding point 125, or any structure in which all the capacitance elements included in the first matching circuit 181 are connected in series between the third feed source 150 and the third feeding point 125, and all the inductance elements are connected in parallel between the third feed source 150 and the third feeding point 125, can be the structure of the first matching circuit 181 of the present application, and the embodiments of the present application are not limited to this.

[0085] It is understandable that after the electronic device 10 performs broadband matching on the sixth resonant mode and the seventh resonant mode through the first matching circuit 181, the second radiation section 128 of the second radiator 120 can cover all medium and high frequency wireless signals in the sixth resonant mode and the seventh resonant mode under the excitation of the third feed source 150. For example, please refer to Fig.14 , Fig.14 This is a schematic diagram of an S parameter curve and an antenna efficiency curve when the electronic device 10 provided in an embodiment of the present application supports a fifth wireless signal. Fig.14 The middle curve M13 is the S11 parameter curve when the fifth antenna is working, and the curves M14 and M15 are the radiation efficiency curve and system efficiency curve when the fifth antenna is working, respectively. From the curves M13 to M15, it can be seen that the antenna efficiency of the fifth antenna in the full range of medium and high frequency bands meets the communication requirements, and the fifth antenna can cover all medium and high frequency bands.

[0086] It is understandable that when the first feed source 130, the second feed source 140 and the third feed source 150 of the electronic device 10 work simultaneously, the electronic device 10 can support the first wireless signal to the fifth wireless signal. Fig.15 , Fig.15 A schematic diagram of an S parameter curve and an antenna efficiency curve when the electronic device 10 provided in an embodiment of the present application supports the first wireless signal to the fifth wireless signal, Fig.14 The middle curves M16 to M18 are respectively the S parameter curves when the first feed 130, the second feed 140 and the third feed 150 are working, the curve M19 is the isolation curve when the first feed 130 and the second feed 140 are working at the same time, the curve M20 is the isolation curve when the first feed 130 and the third feed 150 are working at the same time, and the curve M21 is the isolation curve when the second feed 140 and the third feed 150 are working at the same time. It can be seen from the curves M16 to M18 that the electronic device 10 of the present application can cover wireless signals such as the LB band, the MHB band, the 2.4G Wi-Fi band, the UHB band, and the 5G Wi-Fi band, so that the main working frequency band of the electronic device 10 can be covered by two radiators. Moreover, since the first grounding point 123 and the second grounding point 124 increase the ground path, the isolation between the first radiator 110 and the second radiating segment 128 is improved. At the same time, a large part of the resonant current of the 2.4G Wi-Fi signal is on the first radiator 110 and is not on the same branch as the resonant current of the MHB band wireless signal. This makes the isolation between the 2.4G Wi-Fi signal and the MHB band signal above -12dB, which can achieve separation of the MHB band signal and the 2.4G Wi-Fi signal, save the RF extractor, and achieve co-frequency isolation.

[0087] The electronic device 10 of the embodiment of the present application is provided with a first matching circuit 181, and the fifth antenna can cover a wider frequency band of medium and high frequency signals under the action of the first matching circuit 181, and the bandwidth of the fifth wireless signal supported by the fifth antenna is wider. At the same time, the electronic device 10 of the present application can cover the main working frequency band of the electronic device 10, and the medium and high frequency signals supported by the fifth antenna can be isolated from the same frequency as the 2.4G Wi-Fi signal supported by the second antenna, which can reduce the production cost of the electronic device 10 and improve the antenna performance of the electronic device 10 when supporting multiple wireless signals.

[0088] Please refer again to Fig.11 The electronic device 10 of the embodiment of the present application may further include at least one of a second matching circuit 182 and a third matching circuit 183 .

[0089] The second matching circuit 182 may be electrically connected between the first feed source 130 and the first feeding point 112 to achieve electrical connection between the second matching circuit 182 and the first feed source 130 and the first radiator 110. The second matching circuit 182 may perform impedance matching adjustment on the excitation signal provided by the first feed source 130, so that the first feed source 130 may better excite the first radiator 110 to support the first wireless signal, and better excite the first radiator 110 and the first radiation section 127 to support the second wireless signal.

[0090] The third matching circuit 183 can be electrically connected between the second feed source 140 and the second feeding point 122 to achieve electrical connection between the third matching circuit 183 and the second feed source 140 and the first radiation section 127. The third matching circuit 183 can perform impedance matching adjustment on the excitation signal provided by the second feed source 140, so that the second feed source 140 can better excite the first radiation section 127 to support the third wireless signal and the fourth wireless signal.

[0091] It is understandable that the second matching circuit 182 and the third matching circuit 183 may include, but are not limited to, an unlimited number of capacitor elements, inductor elements, and switch elements, which are not limited in the present embodiment of the application.

[0092] Based on the structure of the electronic device 10, please refer to Fig.16 , Fig.16 This is a fourth structural diagram of the electronic device 10 provided in the embodiment of the present application. The electronic device 10 may further include a display screen 200, a middle frame 300, a circuit board 400, a battery 500 and a rear housing 600.

[0093] The display screen 200 is disposed on the middle frame 300 to form a display surface of the electronic device 10 for displaying information such as images and texts. The display screen 200 may include a liquid crystal display (LCD) or an organic light-emitting diode (OLED) display.

[0094] The middle frame 300 may include a frame 310 and a middle plate 320. The frame 310 may be a hollow frame structure and form the outer frame of the electronic device 10. The middle plate 320 may be a thin plate or sheet-like structure. The middle frame 300 is used to provide support for the electronic devices or functional components in the electronic device 10 so as to install the electronic devices and functional components of the electronic device 10 together. For example, structures such as grooves, protrusions, and through holes may be provided on the middle frame 300 to facilitate the installation of the electronic devices or functional components of the electronic device 10. It is understandable that the material of the middle frame 300 may include metal or plastic.

[0095] The circuit board 400 is arranged on the middle frame 300 for fixing, and the circuit board 400 is sealed inside the electronic device 10 through the rear shell 600. The circuit board 400 may be integrated with a processor, and may also be integrated with one or more functional components such as an earphone interface, an acceleration sensor, a gyroscope, and a motor. At the same time, the display screen 200 may be electrically connected to the circuit board 400 so that the display of the display screen 200 is controlled by the processor on the circuit board 400.

[0096] The battery 500 is disposed on the middle frame 300, and the battery 500 is sealed inside the electronic device 10 through the rear case 600. At the same time, the battery 500 is electrically connected to the circuit board 400 so that the battery 500 can power the electronic device 10. Among them, a power management circuit may be disposed on the circuit board 400. The power management circuit is used to distribute the voltage provided by the battery 500 to various electronic devices in the electronic device 10.

[0097] The rear shell 600 is connected to the middle frame 300. For example, the rear shell 600 can be attached to the middle frame 300 by an adhesive such as a double-sided adhesive to achieve connection with the middle frame 300. The rear shell 600 is used to seal the electronic devices and functional components of the electronic device 10 inside the electronic device 10 together with the middle frame 300 and the display screen 200 to protect the electronic devices and functional components of the electronic device 10.

[0098] It can be understood that the ground plane 160 of the embodiment of the present application can be formed on the rear shell 600, the circuit board 400 or the middle plate 320 of the middle frame 300. For example, a conductor area with zero electric potential can be set on the rear shell 600, the circuit board 400 or the middle plate 320, and the ground plane 160 can be set on the conductor area.

[0099] It can be understood that one or more of the first feed 130, the second feed 140, the third feed 150, the switching circuit 170, the first matching circuit 181, the second matching circuit 182, and the third matching circuit 183 of the embodiment of the present application can be but are not limited to being arranged on the circuit board 400; of course, one or more of the above-mentioned components can also be arranged on the small board of the electronic device 10, and the embodiment of the present application does not limit the specific setting position of the above-mentioned structure.

[0100] It can be understood that the above is only an illustrative example of the electronic device 10. The electronic device 10 of the embodiment of the present application may also include components such as a camera, a sensor, and an acoustic-to-electric conversion device. These components can be found in the description of the relevant technology and will not be repeated here.

[0101] Among them, please refer to Fig.17 , Fig.17 This is a fifth structural diagram of the electronic device 10 provided in an embodiment of the present application. The frame 310 of the middle frame 300 may also include a first frame 311, a second frame 312, a third frame 313 and a fourth frame 314 connected in sequence.

[0102] The first frame 311 and the third frame 313 are arranged opposite to each other, and the second frame 312 and the fourth frame 314 are arranged opposite to each other. The length of the first frame 311 and the third frame 313 is longer than the length of the second frame 312 or the fourth frame 314, so that the first frame 311 and the third frame 313 can be the long frame 310 of the electronic device 10, and the second frame 312 and the fourth frame 314 can be the short frame 310 of the electronic device 10.

[0103] It is understandable that the first radiator 110 and the second radiator 120 can both be disposed in the first frame 311, or the first radiator 110 and the second radiator 120 can both be disposed in the third frame 313. For example, the first radiator 110 and the second radiator 120 can be disposed in the middle area of ​​the first frame 311 (for example, the distance between the first ground end 113 of the first radiator 110 and the second frame 312 is greater than or equal to one quarter of the length of the first frame 311, and the distance between the third free end 126 of the second radiator 120 and the fourth frame 314 is greater than or equal to one quarter of the length of the first frame 311), or the first radiator 110 and the second radiator 120 can be disposed in the middle area of ​​the third frame 313. At this time, please refer to Fig.18 , Fig.18This is an application scenario diagram of an electronic device 10 provided in an embodiment of the present application. When the electronic device 10 is in a horizontal two-handed holding scenario, the first radiator 110 and the second radiator 120 are not easily held by the user. The second antenna supporting 2.4G Wi-Fi signals and the fourth antenna supporting 5G Wi-Fi signals are both located in the middle of the electronic device 10. In this hand-holding scenario, they are far away from the user's hands and are less affected by the user's hands, so that the antenna efficiency of the second antenna and the fourth antenna decreases very little. The decrease when the second antenna supports 2.4G Wi-Fi signals and the fourth antenna supports 5G Wi-Fi signals is less than 2dB.

[0104] It is understandable that the first frame 311 or the third frame 313 may be formed by opening a plurality of gaps to form at least two metal branches, but is not limited to the first radiator 110 may include one of the metal branches, and the second radiator 120 may include another of the metal branches, so that the first radiator 110 and the second radiator 120 may be frame radiation structures. Of course, the first radiator 110 and the second radiator 120 may also be other radiation structures. In this case, the first radiator 110 and the second radiator 120 may be connected to the first frame 311 or the third frame 313 and their projections are located on the first frame 311 or the third frame 313. The embodiment of the present application does not specifically limit the formation method of the first radiator 110 and the second radiator 120.

[0105] It can be understood that when the electronic device 10 is in a vertical holding posture, the distance between the second frame 312 and the ground plane is smaller than the distance between the fourth frame 314 and the ground plane, so that the second frame 312 is the bottom frame when the electronic device 10 is in a vertical holding posture, and the fourth frame 314 is the top frame when the electronic device 10 is in a vertical holding posture. At this time, the first radiator 110 can be arranged close to the second frame 312, and the distance between the first grounding end 113 of the first radiator 110 and the second frame 312 can be smaller than the distance between the first free end 111 and the second frame 312, so that the first radiator 110 can be a radiation structure with an opening upward (free end upward). When the first radiator 110 supports a low-frequency first wireless signal under the excitation of the first feed source 130, the first antenna formed by the first feed source 130 and the first radiator 110 will have a very low one-handed drop-out. Compared with the low-frequency antenna with an opening downward (the one-handed drop-out of the low-frequency antenna is generally 5-6dB), the drop-out of the first antenna with an opening upward in the present application is generally only 2-3dB. The drop-out of the first antenna with an opening upward in the present application is small in the hand-held scenario, so that the first antenna still has better radiation performance in the hand-held scenario. For example, please refer to Fig.19 , Fig.19Schematic diagram of antenna efficiency of the first antenna of the electronic device 10 provided in the embodiment of the present application in different scenarios. By comparing the antenna efficiency of the first antenna when supporting B5 band signals, B8 band signals, and B28 band signals in the free space scenario (FS scenario), the right head and hand scenario (BHHR scenario), and the left head and hand scenario (BHHL scenario), it can be seen that the drop of the first antenna with the opening upward in the present application in different hand-holding scenarios is generally only 2-3dB, and the first antenna has a better anti-hand-holding performance.

[0106] In the electronic device 10 of the embodiment of the present application, the first radiator 110 and the second radiator 120 can support the transmission and reception of five wireless signals under the stimulation of three feed sources. On the one hand, the multiplexing of the radiators enables the electronic device 10 to achieve a miniaturized design; on the other hand, when the first radiator 110 and the second radiator 120 are arranged on a frame 310 of the electronic device 10, the electronic device 10 can also achieve full coverage of the LB band, the MHB band, the 2.4G Wi-Fi signal, the UHB band, and the 5G Wi-Fi signal on a single side, and the application scenario of the electronic device 10 is wider. In addition, the electrical connection point 114 electrically connected to the switching circuit 170 is arranged in the current strong point area A3 generated by the 2.4G Wi-Fi signal. The switching circuit 170 can make the 2.4G Wi-Fi signal resident when the first antenna switches between low-frequency signals of different frequency bands, which can improve the user experience. Moreover, the second antenna supports 2.4G Wi-Fi signals and the fifth antenna supports MHB band signals with better isolation performance. The antenna scheme of the present application can solve the coexistence problem of 2.4G Wi-Fi signals and MHB band signals, save extractors, and reduce the production cost of the electronic device 10. In addition, the fifth antenna is broadband matched through the first matching circuit 181, so that the fifth antenna can cover the entire MHB band without switching, further broadening the application scenario of the electronic device 10. At the same time, the second antenna supporting 2.4G Wi-Fi signals and the fourth antenna supporting 5G Wi-Fi signals can be away from the hands of the user when holding them with both hands. The performance of the second antenna and the fourth antenna in the hand-holding scenario is better, which can improve the antenna performance of the Wi-Fi signal in the game scenario. In addition, the first antenna is an antenna structure with an opening upward in the vertical hand-holding posture, and the head and hand of the first antenna are reduced less, and the first antenna still has better antenna performance in the hand-holding state.

[0107] It should be understood that, in the description of this application, terms such as "first", "second", etc. are only used to distinguish similar objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0108] The electronic device provided by the embodiment of the present application is described in detail above. The principle and implementation method of the present application are described in detail using specific examples herein, and the description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. An electronic device, characterized in that: include: A first radiator comprises a first free end, a first feeding point and a first grounding end which are arranged in sequence, wherein the first grounding end is grounded; A second radiator comprises a second free end, a second feeding point, a first grounding point, a second grounding point, a third feeding point and a third free end which are arranged in sequence, wherein the second free end is spaced apart from the first free end, the third free end extends in a direction away from the first free end, and the first grounding point and the second grounding point are grounded; A first feed source, electrically connected to the first feeding point, the first feed source is used to excite the first radiator to support the transmission and reception of the first wireless signal, and to excite the first radiator and part of the second radiator to jointly support the transmission and reception of the second wireless signal, wherein the first radiator is the main radiator of the second wireless signal; A second feed source, electrically connected to the second feed point, the second feed source being used to excite a first radiation section between the second free end and the first ground point to support the transmission and reception of a third wireless signal and a fourth wireless signal; and A third feed source is electrically connected to the third feeding point, and is used to excite the second radiation segment between the second grounding point and the third free end to support the transmission and reception of a fifth wireless signal, wherein the frequency band of the fifth wireless signal and the frequency band of the second wireless signal at least partially overlap.

2. The electronic device according to claim 1, characterized in that: The first radiator further includes an electrical connection point; and the electronic device further includes: A switching circuit is electrically connected to the electrical connection point, and is used to perform a switching operation so that the first radiator supports the transmission and reception of the first wireless signal in different frequency bands under the excitation of the first feed source.

3. The electronic device according to claim 2, characterized in that: When the first radiator supports the second wireless signal, at least one current strong point area is formed; The electrical connection point is arranged in an area of ​​strong current so that under the switching action of the switching circuit, the first feed source excites the first radiator to support the transmission and reception of the first wireless signal in different frequency bands, and the first feed source excites the first radiator and part of the second radiator to jointly support the transmission and reception of the second wireless signal in the same frequency band.

4. The electronic device according to claim 2, characterized in that: The electrical connection point is arranged near the first free end, and the switching circuit includes a plurality of grounded large-inductance switching branches. When the switching circuit switches between the plurality of large-inductance switching branches, the first feed source excites the first radiator to support the transmission and reception of the first wireless signals in different frequency bands, and the first feed source excites the first radiator and part of the second radiator to jointly support the transmission and reception of the second wireless signals in the same frequency band.

5. The electronic device according to claim 3 or 4, characterized in that: The electrical connection point overlaps with the first feeding point.

6. The electronic device according to claim 3 or 4, characterized in that: The first wireless signal is a low-frequency signal, and the second wireless signal is a 2.4G wireless fidelity signal.

7. The electronic device according to claim 1, characterized in that: The first feed source is used to excite the first radiator to generate a first resonance mode to support the transmission and reception of the first wireless signal; The first resonance mode forms a first resonance current on the first radiator that flows from the first ground end to the first free end.

8. The electronic device according to claim 1, characterized in that: The first feed source is used to excite the first radiator and the first radiating section to generate a second resonance mode and a third resonance mode to jointly support the transmission and reception of the second wireless signal; wherein, The second resonance mode forms a first current zero point region on the first radiator, and the second resonance mode forms a second resonance current on the first radiator and the first radiation segment, flowing from the first current zero point region to the first ground point, and flowing from the first current zero point region to the first ground end; The third resonant mode forms a second current zero point area on the first radiator, and the third resonant mode forms a third resonant current on the first radiator and the first radiating segment, flowing from the second free end to the first grounding point, from the first free end to the second current zero point area, and from the first ground end to the second current zero point area.

9. The electronic device according to claim 8, characterized in that: The current intensity of the second resonant current distributed on the first radiator is greater than the current intensity of the second resonant current distributed on the first radiating section; The current intensity of the third resonant current distributed on the first radiator is greater than the current intensity of the third resonant current distributed on the first radiating section.

10. The electronic device according to claim 1, characterized in that: The second feed source is used to excite the first radiation segment to support the transmission and reception of the third wireless signal in a fourth resonance mode, and the fourth resonance mode forms a fourth resonance current on the first radiation segment that flows from the first ground point to the second free end; The second feed source is used to excite the radiation section between the second feeding point and the second free end to support the transmission and reception of the fourth wireless signal in a fifth resonance mode, and the fifth resonance mode forms a fifth resonance current flowing from the second feeding point to the second free end.

11. The electronic device according to claim 10, characterized in that: The length of the radiator between the first ground point and the second free end is slightly larger than one quarter of the wavelength corresponding to the third wireless signal, and slightly smaller than one quarter of the wavelength corresponding to the second wireless signal.

12. The electronic device according to claim 10, characterized in that: The third wireless signal is an N78 frequency band wireless signal, and the fourth wireless signal is a 5G wireless fidelity signal.

13. The electronic device according to claim 1, characterized in that: The third feed source is used to excite the second radiation section to generate the sixth resonance mode and the seventh resonance mode to jointly support the transmission and reception of the fifth wireless signal; wherein, The sixth resonance mode forms a sixth resonance current flowing from the second ground point to the third free end; and the seventh resonance mode forms a fourth resonance current flowing from the third feeding point to the third free end.

14. The electronic device according to claim 13, characterized in that: The electronic device further comprises: a matching circuit, comprising an inductive element connected in series between the third feed source and the third feed point and a capacitive element connected in parallel between the third feed source and the third feed point, or comprising a capacitive element connected in series between the third feed source and the third feed point and an inductive element connected in parallel between the third feed source and the third feed point; The matching circuit is used to perform broadband matching on the sixth resonance mode and the seventh resonance mode, so that the fifth wireless signal covers all medium and high frequency wireless signals.

15. The electronic device according to any one of claims 1 to 4 and 7 to 14, characterized in that: The electronic device further comprises a first frame, a second frame, a third frame and a fourth frame connected in sequence, the first frame is arranged opposite to the third frame, the second frame is arranged opposite to the fourth frame, and the length of the first frame and the third frame is greater than the length of the second frame or the fourth frame; Wherein, the first radiator and the second radiator are arranged on the first frame or the third frame.

16. The electronic device according to claim 15, characterized in that: When the electronic device is in a vertical holding posture, the distance between the second frame and the ground plane is smaller than the distance between the fourth frame and the ground plane; Wherein, the distance between the first ground end and the second frame is smaller than the distance between the first free end and the second frame.

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