Electronic device

Abstract

The invention provides an electronic device. The electronic equipment provided by the embodiment of the invention comprises a first radiator and a second radiator which are arranged at an interval, the first radiating body and the second radiating body are respectively positioned on a first side edge and a second side edge which are different in extension direction of the electronic equipment, and the first radiating body and the second radiating body are respectively excited by an excitation signal of the same feed source to generate a first floor current and a second floor current, and the direction of the first floor current is the same as the extension direction of the first side edge; the direction of the second floor current and the extension direction of the second side edge are the same and are jointly used for supporting receiving and transmitting of low-frequency signals. The low-frequency antenna jointly formed by the first radiator, the second radiator and the feed source occupies less space, and superposition of floor currents in two directions with balanced proportions can be realized at the same time, so that the transceiving performance of low-frequency signals of the electronic equipment in any posture can be improved, and the user experience is improved.

Description

Technical Field

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

[0002] With the continuous development of communication technology, multiple antennas need to be deployed in electronic devices such as mobile phones to enable electronic devices to have diverse communication functions. Among them, low-frequency antennas can support low-frequency signals and low-frequency signals have the characteristics of low loss and long-distance transmission. Therefore, low-frequency antennas are widely used in each generation of mobile communication technology.

[0003] However, the performance of the low-frequency (Lower Band, LB) antenna in the electronic device in the related art needs to be further improved. Summary of the invention

[0004] The present application provides an electronic device. The following introduces various aspects involved in the embodiments of the present application.

[0005] In a first aspect, an electronic device is provided, the electronic device having a first side and a second side, the extension direction of the first side is different from the extension direction of the second side, and the electronic device includes: a first radiator, located on the first side, the first radiator is provided with a first ground terminal, a first free end and a first feeding point, the first feeding point is located between the first ground terminal and the first free end; a second radiator, located on the second side, the second radiator is provided with a second ground terminal, a second free end and a second feeding point, the second feeding point is located between the second ground terminal and the second free end, and a gap is provided between the first radiator and the second radiator for isolating the first radiator from the second radiator; a feed source, respectively connected to the first feeding point and the second feeding point, the excitation signal generated by the feed source is used to excite the first radiator to generate a first floor current and to excite the second radiator to generate a second floor current, the direction of the first floor current is the same as the extension direction of the first side, the direction of the second floor current is the same as the extension direction of the second side, and the first floor current and the second floor current are used together to support the reception and transmission of low-frequency signals.

[0006] The electronic device provided by the embodiment of the present application includes a first radiator and a second radiator arranged at intervals, the first radiator and the second radiator are respectively located on a first side and a second side of the electronic device with different extension directions, and the first radiator and the second radiator are respectively excited by an excitation signal of the same feed source to generate a first floor current and a second floor current, the direction of the first floor current is the same as the extension direction of the first side, the direction of the second floor current is the same as the extension direction of the second side, and they are jointly used to support the reception and transmission of low-frequency signals. The low-frequency antenna formed by the first radiator, the second radiator and the feed source in the present application occupies less space and can simultaneously realize the superposition of floor currents in two directions with a relatively balanced proportion, which can improve the reception and transmission performance of low-frequency signals of the electronic device in any posture and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the structure of an electronic device provided in one embodiment of the present application.

[0008] Figure 2 It is a structural schematic diagram of an electronic device provided in another embodiment of the present application.

[0009] Figure 3 It is a structural schematic diagram of an electronic device provided in yet another embodiment of the present application.

[0010] Figure 4 is used Figure 1 Schematic diagram of the floor current excited by the antenna ANT0 in FIG.

[0011] Figure 5 Used when the electronic device is free Figure 1 The directional pattern of the radiation waveform when the antenna ANT0 in the figure is excited by a low-frequency signal.

[0012] Figure 6 is used Figure 1 Schematic diagram of the floor current excited by the antenna ANT1 in FIG.

[0013] Figure 7 Used when the electronic device is free Figure 1 The directional pattern of the radiation waveform when the antenna ANT1 in the figure is excited by a low-frequency signal.

[0014] Figure 8 is used Figure 2 Schematic diagram of the floor current excited by the antenna ANT0' in FIG.

[0015] Fig. 9 Used when the electronic device is free Figure 2 The directional pattern of the radiation waveform when the antenna ANT0' in the figure is excited by a low-frequency signal.

[0016] Fig.10 It is a simulation diagram of the S parameters, system radiation efficiency and system total efficiency of each antenna of the electronic device in the embodiment of the present application in a free state.

[0017] Fig.11 It is a simulation diagram of the S parameters of each antenna, the system radiation efficiency and the system total efficiency of the electronic device in the embodiment of the present application when it is held in the left hand.

[0018] Fig.12 It is a simulation diagram of the S parameters of each antenna, the system radiation efficiency and the system total efficiency of the electronic device in the embodiment of the present application when it is held in the right hand.

[0019] Figure 13(a) is when the electronic device is held in the left hand. Figure 1 The directional pattern of the radiation waveform when the antenna ANT0 in the figure is excited by a low-frequency signal.

[0020] Figure 13(b) is when the electronic device is held in the left hand. Figure 1 The directional pattern of the radiation waveform when the antenna ANT1 in the figure is excited by a low-frequency signal.

[0021] Figure 13(c) is when the electronic device is held in the left hand. Figure 2 The directional pattern of the radiation waveform when the antenna ANT0' in the figure is excited by a low-frequency signal.

[0022] Figure 14(a) is when the electronic device is held in the right hand. Figure 1 The directional pattern of the radiation waveform when the antenna ANT0 in the figure is excited by a low-frequency signal.

[0023] Figure 14(b) is when the electronic device is held in the right hand. Figure 1 The directional pattern of the radiation waveform when the antenna ANT1 in the figure is excited by a low-frequency signal.

[0024] Figure 14(c) is when the electronic device is held in the right hand. Figure 2 The directional pattern of the radiation waveform when the antenna ANT0' in the figure is excited by a low-frequency signal. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0026] With the development of electronic technology, electronic devices (such as smart phones, tablet computers, etc.) are becoming more and more popular in people's daily lives. As the communication functions of electronic devices become more and more powerful, multiple antennas need to be arranged in electronic devices. For example, the multiple antennas can be WIFI antennas, GPS antennas, medium and high frequency antennas, and low frequency antennas. Among them, low frequency antennas can support low frequency signals and low frequency signals have the characteristics of low loss and long distance transmission. Therefore, low frequency antennas are widely used in each generation of mobile communication technology.

[0027] Generally speaking, since there are a large number of antennas in an electronic device and the size occupied by the low-frequency antenna is larger than that of other antennas, in order to arrange enough antennas in the limited clearance area of ​​the electronic device and ensure the radiation performance of the low-frequency antenna, a feasible method is to set the low-frequency antenna to excite the floor current to achieve the radiation of the low-frequency signal.

[0028] As a way to achieve this, Figure 1 As shown, the electronic device 10 has a first side 111 and a second side 112. The length of the first side 111 may be greater than the length of the second side 112, and therefore, the first side 111 may be referred to as a long side, and the second side 112 may be referred to as a short side. In some embodiments, the electronic device 10 includes a housing 110, and the housing 110 may have a frame, and the first side 111 and the second side 112 may be parts forming the frame. A first radiator 120 and a first feed source 130 may be provided in the electronic device. The first radiator 120 may be located on the first side 111. Preferably, the first radiator 120 may be located in the middle of the first side 111. In other words, the extension length of the first radiator 120 is set to be symmetrical about the middle of the first side 111. As shown Figure 1 As shown, the middle position of the first side plate 111 can be understood as the position shown by the horizontal dotted line a in the figure.

[0029] The first radiator 120 includes a first free end 121, a first feeding point 122 and a first grounding end 123, wherein the first feeding point 122 is located between the first free end 121 and the first grounding end 123. The first grounding end 123 is grounded by being connected to the floor 140. The first feed source 130 is connected to the first feeding point 122 to form a first antenna ANT0 together. The first antenna ANT0 is a low-frequency antenna. The excitation signal generated by the first feed source 130 is used to excite the first radiator 120 through the first feeding point 122, and the excitation signal can excite the floor 140 through the first grounding end 123 on the first radiator 120 to generate a first floor current. The first floor current is used to support the transmission and reception of low-frequency signals. The flow direction of the first floor current is consistent with the extension direction of the first side 111, so the first floor current can be understood as the longitudinal current mode of the floor 140.

[0030] Since the length of the first side 111 is relatively long, the first floor current generated by exciting the first radiator 120 located on the first side 111 can make the radiation efficiency of the low-frequency signal higher. However, when the electronic device 10 is in a gripping state, the position where the user grips is usually the position of the first radiator 120, which will cause the user to block most of the first radiator 120, thereby significantly affecting the radiation efficiency of the low-frequency signal radiated by the first radiator 120, resulting in a decrease in the radiation efficiency of the low-frequency signal.

[0031] In order to solve the above problems, a feasible way is as follows: Figure 1 Therefore, the second radiator 150 and the second feed 160 are further arranged in the electronic device, and the second radiator 150 and the second feed together form the second antenna ANTI1, and the second antenna ANTI1 is also a low-frequency antenna. The second radiator 150 includes a second free end 151, a second feeding point 152, and a second grounding end 153, and the second feeding point 152 is located between the second free end 151 and the second grounding end 153. The second grounding end 153 can also be grounded by connecting to the floor 140. The second feed 160 is connected to the second feeding point 152, and the excitation signal generated by the second feed 160 is used to excite the second radiator 150 through the second feeding point 152, and the excitation signal can excite the floor 140 through the second grounding end 153 on the second radiator 150 to generate a second floor current. The second floor current is also used to support the transmission and reception of low-frequency signals. Among them, the flow direction of the second floor current is consistent with the extension direction of the second side 112, so the second floor current can be understood as the lateral current mode of the floor 140.

[0032] By setting a second antenna ANT1 in the electronic device, when the electronic device is switched from a free state to a held state, the low-frequency antenna can be switched from ANT0 to ANT1 to excite a horizontal floor current to support the transmission and reception of low-frequency signals. This can avoid the influence of the user's holding on the radiation efficiency of the vertical floor current, thereby ensuring the radiation efficiency of the low-frequency signal of the electronic device in the held state.

[0033] As mentioned above, the first floor current mainly provides radiation efficiency when the electronic device is in a free state, and the second floor current mainly provides radiation efficiency when the electronic device is in a gripping state. In other words, the first floor current contributes more to the efficiency in the free state, while the second floor current contributes more to the efficiency in the gripping state. However, the first floor current generated by the first feed 130 and the first radiator 120 and the second floor current generated by the second feed 160 and the second radiator 150 cannot exist at the same time, that is, when the first floor current is generated by the first feed 130 and the first radiator 120, the second floor current cannot be generated by the second feed 160 and the second radiator 150. Therefore, the first floor current generated by the first feed 130 and the first radiator 120 is not generated by the second feed 160 and the second radiator 150. Figure 1 When the electronic device is shown, only a single floor current can be used to radiate low-frequency signals, and the radiation efficiency is limited. When the use state (free state and holding state) of the electronic device changes, the antenna needs to be switched to ensure normal communication. The antenna switching process wastes both control resources and time costs. In summary, the performance of the low-frequency antenna in the related art is limited and needs to be further improved.

[0034] In order to improve the performance of the low-frequency antenna in the related technology, the embodiment of the present application proposes that the same feed source can be used to excite two different radiators to simultaneously excite the first floor current and the second floor current mentioned above, so that the low-frequency antenna can generate floor currents in two directions at the same time. This can not only improve the radiation efficiency of the low-frequency signal, but also enable the electronic device to meet the radiation performance of the low-frequency signal in any state without the need for antenna switching.

[0035] Combine the following Figure 2 The electronic device 20 provided in the embodiment of the present application is described in detail.

[0036] It should be noted that the embodiment of the present application does not specifically limit the type of the electronic device 20, as long as the electronic device 150 needs to realize the wireless communication function through the low-frequency antenna. The electronic device can be, for example, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a learning machine or an electronic dictionary and a smart watch and other terminal devices.

[0037] See also Figure 2The electronic device 20 also has the first side 211 and the second side 212 as described above, wherein the first side 211 may be perpendicular to the second side 212. The details of the first side 211 and the second side 212 may be referred to above and will not be repeated here.

[0038] See Figure 2 The electronic device 20 includes a first radiator 220 , a feed source 230 , a floor 240 and a second radiator 250 .

[0039] The first radiator 220 is located on the first side 211, and the extension direction of the first radiator 220 is consistent with the extension direction of the first side 211. The first radiator 220 is provided with a first free end 221, a first feeding point 222 and a first grounding end 223. The first feeding point 222 is located between the first grounding end 223 and the first free end 221. The first grounding end 223 is grounded.

[0040] The second radiator 250 is located on the second side 212, and the extension direction of the second radiator 250 is consistent with the extension direction of the second side 212. The second radiator 250 is provided with a second free end 251, a second feeding point 252 and a second grounding end 253. The second feeding point 252 is located between the second grounding end 253 and the second free end 251. The second grounding end 253 is grounded.

[0041] The present embodiment does not specifically limit the grounding method of the first ground terminal 223 and the second ground terminal 253. For example, the grounding method of the first ground terminal 223 and the second ground terminal 253 includes but is not limited to being grounded by directly or indirectly connecting to the floor 240 of the electronic device 20.

[0042] In an embodiment of the present application, the first radiator 220 and / or the second radiator 250 can be formed in any one or more ways including a flexible printed circuit (FPC) antenna radiator, a laser direct structuring (LDS) antenna radiator, a printed direct structuring (PDS) antenna radiator, or a metal frame.

[0043] For example, Figure 2As shown, in the electronic device 20, the antenna design adopts a metal frame design, that is, the metal frame is reused as the radiator of the antenna. Specifically, the electronic device 20 may include a frame 210 and a floor 240. The frame 210 may be arranged around the floor 240 to form a part of the housing of the electronic device 20, and the frame 210 and the floor 240 are integrally formed. Among them, the first radiator 220 may be formed by opening a slit on the floor 240 (i.e., setting Figure 2 The first radiator 220 is formed by separating the frame 210 and the floor 240 from the gap 224. The second radiator 250 can be formed by opening a gap (i.e., setting a gap 224) on the floor 240. Figure 2 The second radiator 250 is formed by separating the frame 210 and the floor 240 from the gap 254.

[0044] The frame 210 and the floor 240 may be made of metal materials such as aluminum alloy. The slots 224 and 225 and other slots may be filled with non-conductive materials such as plastic.

[0045] The feed source 230 is connected to the first feed point 222 and the second feed point 252 respectively. The embodiment of the present application does not specifically limit the connection method between the feed source 230 and the first feed point 222 and the second feed point 252. For example, the connection method can be direct electrical connection (such as welding), or indirect electrical connection through a coaxial line, a microstrip line, a radio frequency line, a conductive spring, a conductive adhesive, etc. Preferably, the connection method can be electrical connection through a conductive spring.

[0046] The feed source 230 is used to generate an excitation signal and the excitation signal generated by the feed source 230 is used to excite the first radiator 220 to generate the first floor current mentioned above. At the same time, the excitation signal generated by the feed source 230 is also used to excite the second radiator 250 to generate the second floor current mentioned above.

[0047] The first floor current can be understood as an excitation signal generated by the feed source 230 that excites the first radiator 220 to generate an excitation current, and the excitation current in turn excites the floor 240 to generate an excitation current in a first direction through the first ground terminal 223 on the first radiator 220 .

[0048] The second floor current can be understood as the excitation signal generated by the feed source 230 exciting the second radiator 250 to generate an excitation current, and the excitation current in turn excites the floor 240 to generate an excitation current in a second direction through the second ground terminal 253 on the second radiator 250 .

[0049] The first direction is consistent with the extension direction of the first side 211, and the second direction is consistent with the extension direction of the second side 212. In some embodiments, the first direction is the direction from the first free end 221 to the first grounding end 223, and the second direction is the direction from the second free end 251 to the second grounding end 253. The direction of the first floor current is perpendicular to the direction of the second floor current. As mentioned above, the first side 211 is usually the long side of the electronic device 20, and the second side 212 is usually the short side of the electronic device 20. In view of this, the first floor current can be understood as the longitudinal current mode generated on the floor, and the second floor current can be understood as the transverse current mode generated on the floor.

[0050] In an embodiment of the present application, the first floor current and the second floor current are used together to support the transmission and reception of low-frequency signals. The low-frequency signal is a low-frequency signal for realizing 4G and / or 5G communication. The frequency range of the low-frequency signal is 700MHz-960MHz. In some embodiments, the low-frequency signal may include (or cover) low-frequency signals of multiple sub-bands. For example, the low-frequency signal may include: signals of B28 band, B5 band, B8 band, and B20 band. Among them, the size of f1 in the B28 band satisfies: 704MHz≤f1≤803MHz; the size of f1 in the B5 band satisfies: 824MHz≤f1≤894MHz; the size of f1 in the B8 band satisfies: 880MHz≤f1≤960MHz; the size of f1 in the B20 band satisfies: 791MHz≤f1≤862MHz.

[0051] Optionally, the first floor current is used to support the transmission and reception of the first low-frequency signal, and the second floor current is used to support the transmission and reception of the second low-frequency signal, and the first low-frequency signal and the second low-frequency signal have the same frequency. For example, the first floor current excited by the feed source 230 and the first radiator 220 is used to support the B8 frequency band, and the second floor current excited by the excitation signal transmitted from the feed source 230 to the second radiator 250 is also used to support the B8 frequency band. By making the frequencies excited by the first floor current and the second floor current the same, the superposition of floor currents at the same frequency can be achieved, so at the same time, the radiation efficiency of the low-frequency signal is effectively improved compared to the radiation efficiency in the single floor current mode.

[0052] In the embodiment of the present application, the first radiator 220 and the second radiator 250 are two separate radiators, and a gap 225 is provided between the first radiator 220 and the second radiator 250 for isolating the first radiator 220 and the second radiator 250. The gap 225 may be formed by a portion of the first side 211 and a portion of the second side.

[0053] In some embodiments, the first side 211 and the second side 212 may be a frame of the electronic device 20, and the interval 225 may be a part of the frame. The embodiment of the present application does not specifically limit the size of the interval 225, as long as the interval 225 can form an isolation between the first radiator 220 and the second radiator 250. As an implementation method, the size of the interval 225 only needs to be larger than the size of the coupling gap, and the coupling gap can be understood as enabling the radiation current on the first radiator 220 to be coupled to the second radiator.

[0054] The electronic device provided in the embodiment of the present application is a low-frequency antenna ANT0' formed by a first radiator, a second radiator and a same feed source. The low-frequency antenna ANT0' occupies less space and can simultaneously realize the superposition of floor currents in two directions, and the proportion of floor currents in the two directions is relatively balanced, so that it can meet the low-frequency signal receiving and transmitting performance of the electronic device in a free state, and can also meet the low-frequency signal receiving and transmitting performance of the electronic device in a holding state, thereby improving the user experience. In addition, since a gap 225 is provided between the first radiator and the second radiator, the coupling effect between the low-frequency signal on the first radiator 220 and the low-frequency signal on the second radiator 250 can be avoided as much as possible, thereby ensuring the balance of the two floor current modes excited by the same feed source, greatly improving the proportion of the two modes.

[0055] In some embodiments, Figure 2 and Figure 3 As shown, a phase shifter 260 may also be provided in the electronic device 20. Figure 3 As shown, the phase shifter 260 is connected to the feed source 230 and the first feeding point 222 respectively. The phase shifter 260 is used to adjust the phase of the first floor current according to the phase of the second floor current so that the phase of the first floor current and the second floor current enhance each other, thereby avoiding the possible mutual cancellation or reduction between the first floor current and the second floor current before adjustment.

[0056] In other embodiments, Figure 2 As shown, the phase shifter 260 is connected to the feed source 230 and the second feed point 252 respectively. The phase shifter 260 is used to adjust the phase of the second floor current according to the phase of the first floor current, so that the phase of the first floor current and the second floor current enhance each other, thereby avoiding the possible mutual cancellation or reduction between the second floor current and the first floor current before adjustment, thereby further improving the radiation efficiency of the low-frequency signal.

[0057] The embodiment of the present application does not specifically limit the positions of the first radiator 220 and the second radiator 250 on the first side 211 and the second side 212 , respectively.

[0058] As a way to achieve this, Figure 2 and Figure 3 As shown, the first radiator 220 and the second radiator 250 can be respectively arranged at the middle position of the first side 211 and the second side 212. The middle position of the first side 211 and the second side 212 is the middle position of the floor 240 in the length direction ( Figure 2 and Figure 3 The middle position of the second side edge 212 is the middle position of the floor 240 in the width direction ( Figure 2 and Figure 3 Due to the limitation of boundary conditions, the first radiator 220 and the second radiator 250 are respectively arranged at the middle position of the first side 211 and the second side 212 so that the radiation efficiency of the floor current excited by the first radiator and the second radiator can be the highest. In other words, the middle position of the first side 211 and the second side 212 is the position of the best longitudinal mode and transverse mode. Through this arrangement, the proportion of the two floor current modes can be increased to the maximum.

[0059] In some embodiments, Figure 2 and Figure 3 As shown, the specific arrangement of the first radiator 220 and the second radiator 250 can be: the first ground end 223 is located on the side of the first side 211 close to the second radiator 250, the first free end 221 is located on the side of the first side 211 away from the second radiator 250, the second ground end 253 is located on the side of the second side 212 close to the first radiator 220, and the second free end 251 is located on the side of the second side 212 away from the first radiator 220.

[0060] As mentioned above, the first low-frequency signal supported by the first floor current and the second low-frequency signal supported by the second floor current are of the same frequency. In order to ensure the same frequency of the first low-frequency signal and the second low-frequency signal, in some embodiments, a first matching circuit can be provided between the feed source 230 and the first radiator 220, and a second matching circuit can be provided between the feed source 230 and the second radiator 250. By simultaneously controlling the first matching circuit and the second matching circuit, the first floor current and the second floor current can simultaneously radiate low-frequency signals of the same frequency.

[0061] The embodiments of the present application do not specifically limit the structure of the first matching circuit and / or the second matching circuit. The first matching circuit and / or the second matching circuit may include, but are not limited to, frequency-selective filtering networks such as capacitors, inductors, resistors, etc. that are arranged in series and / or in parallel. In some embodiments, the first matching circuit and / or the second matching circuit may include branches formed by multiple capacitors, inductors, and resistors that are connected in series and / or in parallel, and switches that control the on and off of multiple branches. By controlling the on and off of different switches, the frequency-selective parameters of the matching circuit (such as resistance values, inductance values, and capacitance values) can be adjusted, and then the filtering range of the matching circuit can be adjusted, so that the matching circuit can adjust the corresponding radio frequency signal. Different matching circuits may be different, and their specific circuit implementations are not used to limit the scope of protection of the present application. The matching circuits are all used to adjust the impedance of the radiator to which they are electrically connected, so that the impedance of the radiator to which they are electrically connected matches the frequency at which it resonates.

[0062] In order to facilitate understanding of the low-frequency antenna and related technologies in the electronic device 20 in the embodiment of the present application ( Figure 1 ) is different from the floor current excited by the low-frequency antenna in Figure 4 and Figure 5 They were given Figure 1 When the electronic device 10 is in a free state, the flow diagram of the floor current when the low-frequency signal is excited by the low-frequency antenna ANT0 and the directional diagram of the radiation waveform when the low-frequency signal is excited by the low-frequency antenna ANT0. Figure 6 and Figure 7 Given Figure 1 When the electronic device 10 is in a free state, the flow diagram of the floor current when the low-frequency signal is excited by the low-frequency antenna ANT1 and the directional diagram of the radiation waveform when the low-frequency signal is excited by the low-frequency antenna ANT1. Figure 8 and Fig. 9 The flow diagram of the floor current when the electronic device 20 in the embodiment of the present application is in a free state and the low-frequency signal is excited by the low-frequency antenna ANT0', and the directional diagram of the radiation waveform when the low-frequency signal is excited by the low-frequency antenna ANT0' are shown.

[0063] pass Figure 4-9 It can be seen that the low-frequency antenna ANT0 in the related art can only excite a single longitudinal floor current mode, and the low-frequency antenna ANT1 can only excite a single transverse floor current mode, and the longitudinal floor current mode and the transverse floor current mode cannot coexist, but the floor current excited by the low-frequency antenna ANT0' in the embodiment of the present application is a relatively balanced longitudinal floor current mode and transverse floor current mode. In addition, it can be seen from each directional diagram that the directional diagram of the floor current excited by the low-frequency antenna ANT0' in the embodiment of the present application is relatively rounded, with fewer zero points and better directivity, which can ensure good antenna performance.

[0064] In order to verify the working efficiency of the low-frequency antenna in the electronic device 20 in the embodiment of the present application, Fig.10 As shown, the embodiments of the present application respectively provide simulation diagrams of the S parameters, system radiation efficiency and system total efficiency of the low-frequency antenna ANT0, low-frequency antenna ANT1 and low-frequency antenna ANT0' mentioned above when the electronic device is in a free state.

[0065] Combination Fig.10 As shown, in the free state, the total system efficiency of the low-frequency antenna ANT0' provided in the embodiment of the present application is -4.75dB, while the total system efficiency of the low-frequency antenna ANT0 is -5.96dB, and the total system efficiency of the low-frequency antenna ANT1 is -7.54dB. In comparison, the total system efficiency of the low-frequency antenna provided in the embodiment of the present application has gains of 1.21dB and 2.79dB respectively. It can be seen that the low-frequency antenna in the electronic device in the embodiment of the present application has a better radiation efficiency of the low-frequency signal when the electronic device is in a low-frequency working state, thereby ensuring the communication quality and improving the user experience.

[0066] In order to further verify the working efficiency of the low-frequency antenna in the electronic device 20 in the embodiment of the present application, Fig.11 and Fig.12 As shown, Fig.11 The simulation diagrams of the S parameters, system radiation efficiency and system total efficiency of the low-frequency antenna ANT0, the low-frequency antenna ANT1 and the low-frequency antenna ANT0' mentioned above are given when the electronic device is held in the left hand. Fig.12 The simulation diagrams of the S parameters, system radiation efficiency and system total efficiency of the low-frequency antenna ANT0, the low-frequency antenna ANT1 and the low-frequency antenna ANT0' mentioned above are given when the electronic device is held in the right hand.

[0067] It should be understood that Figure 10-12 In the example, the low-frequency antenna ANT0, the low-frequency antenna ANT1 and the low-frequency antenna ANT0' support the low-frequency signal of the B8 frequency band.

[0068] from Figure 10-12 The comparison results of the total system efficiency when the electronic device 20 is in three postures (free state, left-hand holding state and right-hand holding state) can be summarized as shown in Table 1.

[0069] It should be understood that Difference 1 in Table 1 is the difference between the total system efficiency of ANT0' and ANT0 at the same posture, and Difference 2 is the difference between the total system efficiency of ANT0' and ANT1 at the same posture.

[0070] Table 1

[0071]

[0072] From the contents of Table 1, it can be seen that no matter what posture the electronic device is in, the total system efficiency of the low-frequency antenna ANT0' provided in the embodiment of the present application has better benefits compared with the separate longitudinal mode (ANT0) and the separate transverse mode (ANT1) in the related technology, and ensures a balanced proportion of the two floor current modes.

[0073] In order to further understand the low frequency antenna in the electronic device 20 and the related technology ( Figure 1 ) is different from the floor current excited by the low-frequency antenna in the left hand. FIG13 shows the directional diagram of the radiation waveform when each antenna is used to excite the low-frequency signal when the electronic device is held in the left hand. Specifically, FIG13(a) is the directional diagram of the radiation waveform when the antenna ANT0 excites the low-frequency signal, FIG13(b) is the directional diagram of the radiation waveform when the antenna ANT1 excites the low-frequency signal, and FIG13(c) is the directional diagram of the radiation waveform when the antenna ANT0' excites the low-frequency signal. FIG14 shows the directional diagram of the radiation waveform when each antenna is used to excite the low-frequency signal when the electronic device is held in the right hand. Specifically, FIG14(a) is the directional diagram of the radiation waveform when the antenna ANT0 excites the low-frequency signal, FIG14(b) is the directional diagram of the radiation waveform when the antenna ANT1 excites the low-frequency signal, and FIG14(c) is the directional diagram of the radiation waveform when the antenna ANT0' excites the low-frequency signal.

[0074] Through Figures 13-14 and Figure 5 , Figure 7 and Fig. 9 It can be seen that the directional pattern of the low-frequency signal excited by the low-frequency antenna ANT0' in the embodiment of the present application is different from that in any posture of the electronic device. Figure 1 The directional patterns of low-frequency signals excited by the electronic devices in the antenna are relatively round, with fewer zero points and better directivity, which can ensure good antenna performance.

[0075] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present disclosure is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a machine-readable storage medium, or transmitted from one machine-readable storage medium to another machine-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The machine-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0076] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments of the present disclosure can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0077] In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0078] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0079] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0080] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An electronic device, characterized in that: The electronic device has a first side and a second side, the first side extends in a direction different from the second side, and the electronic device includes: a first radiator, located on the first side, the first radiator being provided with a first grounding end, a first free end and a first feeding point, the first feeding point being located between the first grounding end and the first free end; a second radiator, located on the second side, the second radiator being provided with a second ground end, a second free end and a second feeding point, the second feeding point being located between the second ground end and the second free end, and a gap being provided between the first radiator and the second radiator for isolating the first radiator from the second radiator; A feed source is connected to the first feeding point and the second feeding point respectively, and the excitation signal generated by the feed source is used to excite the first radiator to generate a first floor current and to excite the second radiator to generate a second floor current. The direction of the first floor current is the same as the extension direction of the first side, and the direction of the second floor current is the same as the extension direction of the second side, and the first floor current and the second floor current are used together to support the transmission and reception of low-frequency signals.

2. The electronic device according to claim 1, characterized in that: Also includes: A phase shifter, wherein the phase shifter is respectively connected to the feed source and the first feeding point or the phase shifter is respectively connected to the feed source and the second feeding point, and the phase shifter is used to adjust the phase of the first floor current or the second floor current so that the first floor current and the second floor current enhance each other.

3. The electronic device according to claim 1, characterized in that: Also includes: The first ground terminal and the second ground terminal are both connected to the floor, the excitation signal generated by the feed source is used to excite the first radiator and excite the floor through the first ground terminal to generate the first floor current, and the excitation signal generated by the feed source is used to excite the second radiator and excite the floor through the second ground terminal to generate the second floor current.

4. The electronic device according to claim 1, characterized in that: The first radiator is located at a middle position of the first side, and the second radiator is located at a middle position of the second side.

5. The electronic device according to claim 1, characterized in that: The first floor current is used to support the transmission and reception of a first low-frequency signal, and the second floor current is used to support the transmission and reception of a second low-frequency signal. The first low-frequency signal and the second low-frequency signal have the same frequency.

6. The electronic device according to claim 3, characterized in that: The length of the first side is greater than the length of the second side, the first floor current is a longitudinal current mode of the floor, and the second floor current is a transverse current mode of the floor.

7. The electronic device according to claim 1, characterized in that: The first ground end is located on a side of the first side close to the second radiator, the first free end is located on a side of the first side away from the second radiator, the second ground end is located on a side of the second side close to the first radiator, and the second free end is located on a side of the second side away from the first radiator.

8. The electronic device according to any one of claims 1 to 7, characterized in that: The frequency range of the low-frequency signal is 700 MHz-960 MHz.

9. The electronic device according to any one of claims 1 to 7, characterized in that: The direction of the first floor current is from the first free end to the first ground end, and the direction of the second floor current is from the second free end to the second ground end.

10. The electronic device according to any one of claims 1 to 7, characterized in that: The direction of the first floor current is perpendicular to the direction of the second floor current.

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