Electronic device

Abstract

The present application relates to the technical field of antennas, and discloses an electronic device. The electronic device comprises: a frame structure, the frame structure comprising a top frame and a first side frame connected in sequence; a first antenna, a radiation branch of the first antenna being arranged on the top frame; a second antenna, the second antenna comprising a first feed source, a first radiation branch, and a second radiation branch, wherein the first radiation branch and the second radiation branch are arranged on the first side frame, a first slit is provided on the first side frame, the first radiation branch and the second radiation branch are coupled together via the first slit, the first feed source is electrically connected to a first feed point on the first radiation branch, and an end of the first radiation branch away from the first slit is grounded and an end of the second radiation branch away from the first slit is also grounded; and a traveling wave suppression structure, the traveling wave suppression structure being configured to suppress a traveling wave current in the second antenna toward a first direction, wherein the first direction is a direction in which the first side frame is away from the top frame.

Description

Electronic device

[0001] Cross Reference to Related Applications

[0002] The present application claims priority to Chinese Patent Application No. 202411046150.6, filed on August 01, 2024, the contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the technical field of antennas, and specifically relates to an electronic device. BACKGROUND

[0004] In related technologies, electronic devices such as mobile phones are usually provided with at least two antennas, such as one antenna arranged on the top and the other antenna arranged on the side, to meet the communication needs of the electronic devices such as mobile phones in a horizontal screen scene and a vertical screen scene. However, the upper hemisphere radiation effect of the antenna arranged on the side is relatively general, resulting in poor communication quality of the electronic devices such as mobile phones in a weak signal scene, and thus affecting the application experience of users in the weak signal scene. SUMMARY

[0005] The purpose of the embodiments of the present application is to provide an electronic device, which can solve the problem of poor communication quality of the antenna scheme of the electronic device in related technologies.

[0006] To solve the above technical problems, the present application is implemented as follows:

[0007] The embodiments of the present application provide an electronic device, which comprises a frame structure, the frame structure comprising a top frame and a first side frame connected in sequence;

[0008] A first antenna, a radiation branch of the first antenna being arranged on the top frame;

[0009] A second antenna, the second antenna comprising a first feed source, a first radiation branch and a second radiation branch, the first radiation branch and the second radiation branch being arranged on the first side frame, and a first slit being arranged on the first side frame, the first radiation branch and the second radiation branch being coupled and connected through the first slit, the first feed source being electrically connected with a first feed point on the first radiation branch, one end of the first radiation branch away from the first slit being grounded, and one end of the second radiation branch away from the first slit being grounded;

[0010] A traveling wave suppression structure for suppressing a traveling wave current in the second antenna towards a first direction, the first direction being a direction in which the first side frame is away from the top frame.

[0011] In the embodiments of the present application, by setting the traveling wave suppression structure, the traveling wave current in the second antenna towards the first direction can be suppressed, so as to enhance the traveling wave current in the second antenna towards the radiation direction of the first antenna, improve the radiation capability of the second antenna in the radiation direction of the first antenna, and further improve the radiation capability of the antenna module composed of the first antenna and the second antenna in the radiation direction of the first antenna, so as to improve the radiation capability of the antenna module composed of the first antenna and the second antenna, and achieve the purpose of improving the communication quality of the antenna module composed of the first antenna and the second antenna.

[0012] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0013] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood by considering the following detailed description, including the accompanying drawings, in which:

[0014] Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

[0015] Fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

[0016] Fig. 3 is a schematic structural diagram of a frame structure shown in Fig. 1;

[0017] Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

[0018] Fig. 5 is a schematic structural diagram of a third antenna shown in Fig. 4;

[0019] Fig. 6 is a schematic diagram of the distribution of the traveling wave current of the second antenna shown in Fig. 1;

[0020] Fig. 7 is a schematic diagram of the distribution of the traveling wave current of the second antenna shown in Fig. 1;

[0021] Fig. 8 is a radiation pattern of the second antenna without setting the traveling wave suppression structure;

[0022] Fig. 9 is a radiation pattern of the second antenna with setting the traveling wave suppression structure;

[0023] Fig. 10 is a radiation pattern of the second antenna shown in Fig. 1;

[0024] Fig. 11 is a radiation pattern of the second antenna shown in Fig. 1;

[0025] Fig. 12 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

[0026] Fig. 13 is a schematic structural view of the electronic device according to an embodiment of the present application;

[0027] Fig. 14 is a schematic structural view of the electronic device according to an embodiment of the present application;

[0028] Fig. 15 is a schematic structural view of the electronic device according to an embodiment of the present application;

[0029] Fig. 16 is a schematic structural view of the electronic device according to an embodiment of the present application;

[0030] Fig. 17 is a schematic structural view of the electronic device according to an embodiment of the present application;

[0031] Fig. 18 is a schematic structural view of the electronic device according to an embodiment of the present application;

[0032] Fig. 19 is a schematic structural view of the fifth connecting section shown in Fig. 18. DETAILED DESCRIPTION

[0033] Embodiments of the present application will be described in detail below with reference to the drawings, in which the same or similar components have the same or similar reference numerals throughout the several views. The embodiments described below with reference to the drawings are merely exemplary for explaining the present application and should not be construed as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work under the premise that the present application falls within the scope of protection.

[0034] The terms "first", "second" in the description and claims of the present application can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application.

[0036] In the description of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mounting", "connected", "connection" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] As shown in FIGS. 1-4, the electronic device provided by the embodiments of the present application comprises:

[0038] The frame structure 10 comprises a top edge frame 11 and a first side edge frame 12 connected in sequence;

[0039] The first antenna 20 has a radiation branch arranged on the top edge frame 11;

[0040] The second antenna 30 comprises a first feed source 31, a first radiation branch 32 and a second radiation branch 33, the first radiation branch 32 and the second radiation branch 33 are arranged on the first side edge frame 12, and the first side edge frame 12 is provided with a first break 121, the first radiation branch 32 and the second radiation branch 33 are coupled and connected through the first break 121, the first feed source 31 is electrically connected with a first feed point 321 on the first radiation branch 32, one end of the first radiation branch 32 away from the first break 121 is grounded, and one end of the second radiation branch 33 away from the first break 121 is grounded;

[0041] The traveling wave suppression structure is used to suppress the traveling wave current in the second antenna 30 towards the first direction, and the first direction is the direction in which the first side edge frame 12 is away from the top edge frame 11.

[0042] In some embodiments, the first direction is also parallel to the length direction of the first side edge frame 12.

[0043] As shown in FIG. 3, the above-mentioned frame structure 10 can be understood as the frame structure of the electronic device, which can not only comprise the top edge frame 11 and the first side edge frame 12, but also comprise a bottom edge frame 13 and a second side edge frame 14, and the top edge frame 11, the first side edge frame 12, the bottom edge frame 13 and the second side edge frame 14 can be connected in sequence and surround to form the frame structure of the electronic device.

[0044] It can be understood that the frame structure 10 can be a metal frame, or a frame structure formed by combining metal and plastic. In the case of the frame structure 10 formed by combining metal and plastic, the metal part in the frame structure 10 can be used to arrange the radiation branch of the antenna, such as the first radiation branch 32 and the second radiation branch 33 of the second antenna 30.

[0045] In the case that the electronic device is a mobile phone, the top bezel 11 and the bottom bezel 13 are arranged in parallel, and the first side bezel 12 and the second side bezel 14 are arranged in parallel.

[0046] The first antenna 20 and the second antenna 30 can be understood as two antennas of the electronic device in a Multiple-Input Multiple-Output (MIMO) working mode, so that the electronic device can maintain good communication ability in different application scenarios.

[0047] In some embodiments, the working frequency bands of the first antenna 20 and the second antenna 30 are the same.

[0048] In some embodiments, by grounding the end of the first radiating branch 32 away from the first discontinuous gap 121 and grounding the end of the second radiating branch 33 away from the first discontinuous gap 121, the second antenna 30 can generate traveling wave currents propagating along both ends of the first side bezel 12 when working, such as the upward traveling wave current TW1 and the downward traveling wave current TW2.

[0049] Wherein, the upward traveling wave current TW1 can be understood as a traveling wave current in the second antenna 30 towards the opposite direction of the first direction, and the downward traveling wave current TW2 can be understood as a traveling wave current in the second antenna 30 towards the first direction, that is, the directions of the upward traveling wave current TW1 and the downward traveling wave current TW2 are opposite.

[0050] In some embodiments, the first antenna 20 can be a WiFi antenna arranged on the top bezel 11 to meet the communication needs of the electronic device in a vertical screen scenario, and the second antenna 30 can be a WiFi antenna arranged on the first side bezel 12 to meet the communication needs of the electronic device in a horizontal screen scenario.

[0051] Since the radiation generated by the traveling wave will tilt in the direction of phase lag, that is, the radiation direction will deviate to the direction of the traveling wave current propagation, and the traveling wave current on the side bezel will drive the synthesized pattern of the antenna to tilt in the corresponding direction, thereby affecting the radiation proportion of the antenna in the target radiation direction, that is, affecting the communication quality of the antenna.

[0052] In this embodiment, by setting the traveling wave suppression structure, the traveling wave current in the second antenna 30 towards the first direction can be suppressed, thereby enhancing the traveling wave current in the second antenna 30 towards the opposite direction of the first direction, improving the radiation ability of the second antenna 30 in the opposite direction of the first direction, and further improving the radiation ability of the antenna module composed of the first antenna 20 and the second antenna 30 in the opposite direction of the first direction, to improve the radiation ability of the antenna module composed of the first antenna 20 and the second antenna 30, and achieve the purpose of improving the communication quality of the antenna module composed of the first antenna 20 and the second antenna 30.

[0053] In some embodiments, in the case that the electronic device is a mobile phone, especially in the case that the communication scenario in which the electronic device is located is a weak signal scenario, such as the distance between the electronic device and the WiFi router is far, resulting in poor communication quality of the related WiFi antenna. By setting the traveling wave suppression structure in the present application, the traveling wave current in the second antenna 30 on the first side frame 12 towards the first direction is suppressed, that is, the traveling wave current in the second antenna 30 towards the first direction is suppressed, which can enhance the traveling wave current in the second antenna 30 in the opposite direction of the first direction, so as to improve the radiation ability of the second antenna 30 in the opposite direction of the first direction. In this way, without changing the antenna layout, the radiation proportion of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20 can be improved, that is, the radiation ability of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20 can be improved, and then the transmission rate and user experience of the electronic device in the weak signal scenario such as the bedroom can be improved.

[0054] In some embodiments, the first antenna 20 can be a WiFi antenna arranged on the top frame 11, the second antenna 30 can be a WiFi antenna arranged on the first side frame 12, and the second antenna 30 can work in an inverted-F antenna (IFA) mode.

[0055] In some embodiments, as shown in FIG. 4, the traveling wave suppression structure includes a first metal connection segment 122 arranged on the first side frame 12, and the first side frame 12 further has a second break 123 arranged thereon. One end of the first metal connection segment 122 close to the second radiation branch 33 is grounded, and the other end of the first metal connection segment 122 away from the second radiation branch 33 is arranged separately from the frame body of the first side frame 12 through the second break 123.

[0056] In some embodiments, the length of the first metal connection segment 122 is close to 1 / 4λ, and λ is the medium wavelength corresponding to the working frequency band of the second antenna 30.

[0057] The length of the first metal connection segment 122 close to 1 / 4λ can be understood as that the length of the first metal connection segment 122 is approximately equal to 1 / 4λ, or the length of the first metal connection segment 122 is between 0.95*1 / 4λ and 1.05*1 / 4λ.

[0058] It can be understood that the length of the first metal connection segment 122 close to 1 / 4λ is set, that is, the actual length of the length of the first metal connection segment 122 can be set based on communication requirements, as long as the current mode of the first metal connection segment 122 is in a monopole form.

[0059] In this embodiment, the length of the first metal connecting section 122 is set to be close to 1 / 4λ, so that the current mode of the first metal connecting section 122 is in the form of a monopole, thereby effectively suppressing the traveling wave current in the first direction of the second antenna 30 and improving the radiation capability of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20.

[0060] In the case where the working frequency band of the second antenna 30 is WiFi 2.4G, if the first metal connecting section 122 is not arranged on the first side frame 12 to suppress the traveling wave current in the first direction of the second antenna 30, the traveling wave current distribution of the second antenna 30 is shown in FIG. 6, specifically, the A11 area is the antenna body resonant current distribution of the second antenna 30, and the A101 area shows an obvious downward traveling wave current state; if the first metal connecting section 122 is arranged on the first side frame 12 to suppress the traveling wave current in the first direction of the second antenna 30, the traveling wave current distribution of the second antenna 30 is shown in FIG. 7, specifically, the A12 area is the antenna body resonant current distribution of the second antenna 30, and the A102 area is the resonant current of the suppression structure. It can be seen from FIGS. 6 and 7 that the current outside the A12 and A102 areas is weak and no longer presents a downward traveling wave current state, that is, by arranging the traveling wave suppression structure-the first metal connecting section 122, the traveling wave current in the first direction of the second antenna 30 can be effectively suppressed, and the radiation capability of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20 is improved.

[0061] FIG. 8 is a directional diagram of the second antenna without the traveling wave suppression structure, and FIG. 9 is a directional diagram of the second antenna with the traveling wave suppression structure. In the directional diagram shown in FIG. 8, the upper hemisphere radiation accounts for about 49%, while in the directional diagram shown in FIG. 9, the upper hemisphere radiation accounts for about 70%; it can be seen that the arrangement of the traveling wave suppression structure can effectively improve the upper hemisphere radiation of the second antenna 30.

[0062] FIG. 10 is a comparison of the directional diagrams in the two sections in the longitudinal direction in the case where the traveling wave suppression structure is not arranged and in the case where the traveling wave suppression structure is arranged, and it can be seen from the comparison result that the upper hemisphere radiation of the second antenna 30 is effectively improved in the case where the traveling wave suppression structure-the first metal connecting section 122 is arranged.

[0063] FIG. 11 is a comparison of the directional diagrams in the two sections in the longitudinal direction in the case where the traveling wave suppression structure is not arranged and in the case where the traveling wave suppression structure is arranged, and it can be seen from the comparison result that the upper hemisphere radiation of the second antenna 30 is effectively improved in the case where the traveling wave suppression structure-the first metal connecting section 122 is arranged.

[0064] In some embodiments, as shown in FIG. 4, the electronic device further comprises a third antenna 40, the third antenna 40 comprising a second feed source 41 and a third radiation branch 42, the third radiation branch 42 being disposed on the frame structure 10 and located between the second discontinuity 123 and the third discontinuity 15 on the frame structure 10, the second feed source 41 being electrically connected with a second feed point 421 on the third radiation branch 42;

[0065] The traveling wave suppression structure comprises a first connection section of the third radiation branch 42 between the second feed point 421 and the second discontinuity 123, and the first connection section operates in a 3 / 4λ monopole mode.

[0066] In this embodiment, the length of the first connection section can be set so that the first connection section operates in a 3 / 4λ monopole mode, which can effectively suppress the traveling wave current in the second antenna 30 towards the first direction and improve the radiation capability of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20.

[0067] In some embodiments, as shown in FIG. 5, the third antenna 40 further comprises a tuning circuit 43, a capacitor 44 and an inductor 45, an input end of the tuning circuit 43 being electrically connected with an output end of the second feed source 41, an output end of the tuning circuit 43 being electrically connected with a first end of the inductor 45, a second end of the inductor 45 being electrically connected with the second feed point 421 on the third radiation branch 42, a first end of the capacitor 44 being electrically connected with the second end of the inductor 45, and a second end of the capacitor 44 being grounded.

[0068] The tuning circuit 43 can be a phase modulation circuit composed of at least one of a switch, a capacitor and an inductor to meet the communication requirements of the third antenna 40.

[0069] In some embodiments, the traveling wave suppression structure further comprises a second connection section of the third radiation branch 42 between the second feed point 421 and the third discontinuity 15, and the second connection section operates in a 3 / 4λ monopole mode.

[0070] In this embodiment, the length of the second connection section can be set so that the second connection section operates in a 3 / 4λ monopole mode, which can effectively suppress the traveling wave current in the second antenna 30 towards the first direction and improve the radiation capability of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20.

[0071] In some embodiments, as shown in FIG. 4, the traveling wave suppression structure further includes a third connecting segment 124 disposed on the first side frame 12, the third connecting segment 124 being located between the second radiation branch 33 and the first metal connecting segment 122, the third connecting segment 124 being a non-metal connecting segment, and the length of the third connecting segment 124 being close to 1 / 2λ.

[0072] The length of the third connecting segment 124 being close to 1 / 2λ can be understood as the length of the third connecting segment 124 being approximately equal to 1 / 2λ, or the length of the third connecting segment 124 being between 0.95*1 / 2λ and 1.05*1 / 2λ.

[0073] In the embodiment, by setting the third connecting segment 124 located between the second radiation branch 33 and the first metal connecting segment 122 as a non-metal connecting segment, and setting the length of the third connecting segment 124 close to 1 / 2λ, and using the respective ground returns of the second radiation branch 33 and the first metal connecting segment 122, the third connecting segment 124 can form a loop half-wavelength mode, and the traveling wave current in the second antenna 30 towards the first direction can be effectively suppressed, and the radiation capability of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20 is improved.

[0074] In some embodiments, the electronic device further includes a fourth antenna 50, and the radiation branch of the fourth antenna 50 is located between the first radiation branch 22 and the top frame 11 to improve the antenna layout of the electronic device.

[0075] The fourth antenna 50 can be a middle-high frequency antenna or other antenna.

[0076] Specifically, the ground return structure of the fourth antenna 50 can be arranged in the corner region corresponding to the first side frame 12 and the top frame 11, that is, a non-donor design of the fourth antenna 50 and the second antenna 30 is achieved, the suppression of the fourth antenna 50 on the upward traveling wave current can be effectively weakened, the proportion of the upward traveling wave current of the second antenna 30 is improved, that is, the upper hemisphere radiation proportion of the second antenna 30 is improved, and the purpose of improving the radiation capability of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20 on the basis of improving the antenna layout of the electronic device is achieved.

[0077] In some embodiments, as shown in FIG. 12, the length of the second radiation branch 33 is close to 1 / 4λ.

[0078] The length of the second radiation branch 33 being close to 1 / 4λ can be understood as the length of the second radiation branch 33 being approximately equal to 1 / 4λ, or the length of the second radiation branch 33 being between 0.95*1 / 4λ and 1.05*1 / 4λ.

[0079] In the embodiment, by setting the length of the second radiating branch 33 to be close to 1 / 4λ, the second radiating branch 33 can generate a monopole quarter-wavelength operating mode, which has a significant inhibitory effect on the traveling wave current in the second antenna 30 towards the first direction, thereby improving the radiation capability of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20.

[0080] It should be noted that, in the case where the length of the second radiating branch 33 is close to 1 / 4λ, the efficiency of the second antenna 30 at a higher frequency can be reduced due to the introduction of the slog differential mode between the two grounding points of the second antenna 30.

[0081] In some embodiments, as shown in FIG. 13, the traveling wave suppression structure further includes a fourth connecting segment 125 arranged on the first side frame 12, the fourth connecting segment 125 being located between the second radiating branch 33 and the first metal connecting segment 122, and the first side frame 12 further being provided with a fourth slit 126 separating the second radiating branch 33 and the fourth connecting segment 125, the fourth connecting segment 125 and the first metal connecting segment 122 sharing a grounding structure, and the length of the fourth connecting segment 125 being close to 1 / 4λ.

[0082] The length of the fourth connecting segment 125 being close to 1 / 4λ can be understood as the length of the fourth connecting segment 125 being approximately equal to 1 / 4λ, or the length of the fourth connecting segment 125 being between 0.95*1 / 4λ and 1.05*1 / 4λ.

[0083] In the embodiment, by arranging the fourth connecting segment 125 and the fourth slit 126, setting the length of the fourth connecting segment 125 to be close to 1 / 4λ, and setting the fourth connecting segment 125 and the first metal connecting segment 122 to share a grounding structure, the fourth connecting segment 125 and the first metal connecting segment 122 can form quarter-wavelength monopole modes respectively, thereby effectively suppressing the traveling wave current in the second antenna 30 towards the first direction, and improving the radiation capability of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20.

[0084] In some embodiments, as shown in FIGS. 14 and 15, the electronic device further includes a fifth antenna 60, and the first side frame 12 is provided with a fifth slit 127, and the radiating branch of the fifth antenna 60 is arranged on the first side frame 12 and located between the first slit 121 and the fifth slit 127.

[0085] The end of the first radiating branch 32 away from the first slit 121 is electrically connected through a second metal connecting segment 34 and a grounding structure 35, the second metal connecting segment 34 is parallel to the first side frame 12, the length of the second metal connecting segment 34 is close to 1 / 4λ and less than 1 / 4λ, and a tuning network 36 is further arranged between the second metal connecting segment 34 and the grounding structure 35.

[0086] The length of the second metal connecting segment 34 is close to 1 / 4λ, which can be understood as that the length of the second metal connecting segment 34 is approximately equal to 1 / 4λ, or the length of the second metal connecting segment 34 is between 0.95*1 / 4λ and 1.05*1 / 4λ.

[0087] In the embodiment, the radiating branch of the fifth antenna 60 and the first radiating branch 32 of the second antenna 30 can jointly form a half-wavelength mode of a T antenna and can form a strong inhibition to the upward traveling wave current of the second antenna 30; therefore, by arranging the second metal connecting segment 34, the first radiating branch 32 is grounded through the second metal connecting segment 34 and the tuning network 36, so as to weaken the inhibition of the half-wavelength mode of the T antenna jointly formed by the radiating branch of the fifth antenna 60 and the first radiating branch 32 of the second antenna 30 to the upward traveling wave current of the second antenna 30, thereby enhancing the radiation capability of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20.

[0088] The tuning network 36 can be composed of at least one of a capacitor, an inductor, and a switch.

[0089] Moreover, by arranging the second metal connecting segment 34 and setting the length of the second metal connecting segment 34 to be close to 1 / 4λ and less than 1 / 4λ, the half-wavelength mode of the T antenna jointly formed by the radiating branch of the fifth antenna 60 and the first radiating branch 32 of the second antenna 30 can be destroyed, so as to weaken the inhibition to the upward traveling wave current of the second antenna 30 and enhance the radiation capability of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20.

[0090] In some embodiments, as shown in FIG. 16, the traveling wave inhibition structure further comprises a first metal stub 71 arranged inside the first side frame 12, the first metal stub 71 is a bent structure, one end of the first metal stub 71 is connected to the first side frame 12, and the other end is arranged in a suspended manner; and the second radiating branch 33 is located between the first metal stub 71 and the first radiating branch 32.

[0091] The first metal stub 71 is used to form a 1 / 4λ monopole mode.

[0092] In the embodiment, the first metal branch 71 is arranged to form a monopole mode of about 1 / 4 wavelength, which can effectively suppress the traveling wave current in the second antenna 30 towards the first direction, thereby improving the radiation capability of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20.

[0093] In some embodiments, the first metal branch 71 can be an L-shaped bending structure.

[0094] In some embodiments, as shown in FIG. 17, the traveling wave suppression structure further includes a second metal branch 72 arranged inside the first side frame 12, the second metal branch 72 being a bending structure, and both ends of the second metal branch 72 being connected to the first side frame 12, and the second radiation branch 33 being located between the second metal branch 72 and the first radiation branch 32.

[0095] The second metal branch 72 is arranged to form a Loop mode of about 1 / 2 wavelength.

[0096] In the embodiment, the second metal branch 72 is arranged to form a Loop mode of about 1 / 2 wavelength, which can effectively suppress the traveling wave current in the second antenna 30 towards the first direction, thereby improving the radiation capability of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20.

[0097] The distance between the end of the second metal branch 72 close to the second radiation branch 33 and the ground point of the second radiation branch 33 can be less than or equal to 1 / 2 wavelength, which can further improve the suppression effect of the second metal branch 72 on the traveling wave current in the second antenna 30 towards the first direction.

[0098] In some embodiments, the second metal branch 72 can be a C-shaped bending structure.

[0099] In some embodiments, as shown in FIGS. 18 and 19, the traveling wave suppression structure further includes a fifth connecting segment 128 arranged on the first side frame 12, and the second radiation branch 33 is located between the fifth connecting segment 128 and the first radiation branch 32.

[0100] The fifth connecting segment 128 is provided with a groove structure 1281 with a notch facing the second direction, the second direction being parallel to the top frame 11, and the length of the groove structure 1281 in the first direction being close to 1 / 2 wavelength.

[0101] The length of the groove structure 1281 in the first direction is close to 1 / 2λ, which can be understood as that the length of the groove structure 1281 in the first direction is approximately equal to 1 / 2λ, or the length of the groove structure 1281 in the first direction is between 0.95*1 / 2λ and 1.05*1 / 2λ.

[0102] In the embodiment, the fifth connecting segment 128 is arranged, the groove structure 1281 is arranged on the fifth connecting segment 128, and the length of the groove structure 1281 in the first direction is close to 1 / 2λ, so that the fifth connecting segment 128 can form a slot mode of about half a wavelength, the slot mode can effectively suppress the traveling wave current in the second antenna 30 towards the first direction, and the radiation capability of the antenna module composed of the first antenna 20 and the second antenna 30 in the direction in which the second antenna 30 points to the first antenna 20 is improved.

[0103] As shown in FIG. 1 and FIG. 4, the grounding points on the radiating branches of the second antenna 30 can be electrically connected with the grounding structure on the first circuit board 81, so as to realize the grounding of the radiating branches of the second antenna 30.

[0104] As shown in FIG. 4, the grounding points on the radiating branches of the third antenna 40 can be electrically connected with the grounding structure on the second circuit board 82, so as to realize the grounding of the radiating branches of the third antenna 40.

[0105] In some embodiments, the first circuit board 81 can be a mainboard structure of an electronic device.

[0106] The electronic device provided by the embodiment of the present application can be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc.

[0107] In the description of the present specification, the description of the terms “one embodiment”, “some embodiments”, “exemplary embodiment”, “example”, “specific example”, or “some examples” means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0108] While the embodiments of the application have been shown and described, it is to be understood that the embodiments can be varied, modified, substituted and changed by those skilled in the art without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic device, comprising: a frame structure comprising a top edge frame and a first side edge frame connected together; a first antenna, a radiating branch of the first antenna being disposed on the top edge frame; a second antenna, the second antenna comprising a first feed, a first radiating branch and a second radiating branch, the first radiating branch and the second radiating branch being disposed on the first side edge frame, and a first slit being disposed on the first side edge frame, the first radiating branch and the second radiating branch being coupled by the first slit, the first feed being electrically connected to a first feed point on the first radiating branch, an end of the first radiating branch away from the first slit being grounded, an end of the second radiating branch away from the first slit being grounded; a traveling wave suppression structure for suppressing a traveling wave current in the second antenna towards a first direction, the first direction being a direction in which the first side edge frame is away from the top edge frame. 2.The electronic device of claim 1, wherein, the traveling wave suppression structure comprising a first metal connecting segment disposed on the first side edge frame, a second slit being further disposed on the first side edge frame, an end of the first metal connecting segment close to the second radiating branch being grounded, an end of the first metal connecting segment away from the second radiating branch being disposed separately from a frame body of the first side edge frame by the second slit; wherein a length of the first metal connecting segment is close to 1 / 4λ, λ being a medium wavelength corresponding to an operating frequency band of the second antenna.

3. The electronic device of claim 2, wherein, the electronic device further comprising a third antenna, the third antenna comprising a second feed and a third radiating branch, the third radiating branch being disposed on the frame structure and located between the second slit and a third slit of the frame structure, the second feed being electrically connected to a second feed point on the third radiating branch; the traveling wave suppression structure further comprising a first connecting segment of the third radiating branch between the second feed point and the second slit, and the first connecting segment operating in a 3 / 4λ monopole mode.

4. The electronic device of claim 3, wherein, the traveling wave suppression structure further comprising a second connecting segment of the third radiating branch between the second feed point and the third slit, and the second connecting segment operating in a 3 / 4λ monopole mode.

5. The electronic device of claim 2, wherein, the traveling wave suppression structure further comprising a third connecting segment disposed on the first side edge frame, the third connecting segment being located between the second radiating branch and the first metal connecting segment, the third connecting segment being a non-metal connecting segment, and a length of the third connecting segment being close to 1 / 2λ.

6. The electronic device of claim 2, wherein, a length of the second radiating branch is close to 1 / 4λ.

7. The electronic device of claim 6, wherein, the traveling wave suppression structure further comprising a fourth connecting segment disposed on the first side edge frame, the fourth connecting segment being located between the second radiating branch and the first metal connecting segment, a fourth slit being further disposed on the first side edge frame to separate the second radiating branch and the fourth connecting segment, the fourth connecting segment and the first metal connecting segment sharing a same grounding structure, and a length of the fourth connecting segment being close to 1 / 4λ.

8. The electronic device of claim 1, wherein, The electronic device further comprises a fifth antenna, a fifth slit is arranged on the first side frame, and a radiation branch of the fifth antenna is arranged on the first side frame and located between the first slit and the fifth slit; An end of the first radiation branch away from the first slit is electrically connected through a second metal connecting segment and a grounding structure, the second metal connecting segment is parallel to the first side frame, a length of the second metal connecting segment is close to 1 / 4λ and less than 1 / 4λ, λ is a medium wavelength corresponding to a working frequency range of the second antenna; The second metal connecting segment and the grounding structure are further provided with a tuning network therebetween. 9.The electronic device of claim 1, wherein, The traveling wave suppression structure further comprises a first metal stub arranged inside the first side frame, the first metal stub is a bent structure, one end of the first metal stub is connected with the first side frame, and the other end of the first metal stub is arranged in a suspended manner; and the second radiation branch is located between the first metal stub and the first radiation branch. The first metal stub is used for forming a 1 / 4λ monopole mode, λ is a medium wavelength corresponding to a working frequency range of the second antenna. 10.The electronic device of claim 1, wherein, The traveling wave suppression structure further comprises a second metal stub arranged inside the first side frame, the second metal stub is a bent structure, both ends of the second metal stub are connected with the first side frame, and the second radiation branch is located between the second metal stub and the first radiation branch. The second metal stub is used for forming a 1 / 2λ Loop mode, λ is a medium wavelength corresponding to a working frequency range of the second antenna.

11. The electronic device of claim 10, wherein, A distance between one end of the second metal stub close to the second radiation branch and a grounding point of the second radiation branch is less than or equal to 1 / 2λ.

12. The electronic device of claim 1, wherein, The traveling wave suppression structure further comprises a fifth connecting segment arranged on the first side frame, and the second radiation branch is located between the fifth connecting segment and the first radiation branch. The fifth connecting segment is provided with a groove structure with a slot opening in a second direction, the second direction is a direction parallel to the top frame, and a length of the groove structure in a first direction is close to 1 / 2λ, λ is a medium wavelength corresponding to a working frequency range of the second antenna.

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