Electronic device

Abstract

The invention discloses an electronic device. The electronic equipment comprises a frame body, a floor, a first conductor and a connecting assembly, the frame body is arranged around the floor, the frame body comprises a first radiator and a second radiator, the first radiator and the floor are arranged at intervals, and a first fracture is formed between the first radiator and the second radiator; the end, facing the first fracture, of the first radiator is electrically connected with the floor through a first conductor, the first radiator and the first conductor form a radiator of the first antenna, the end, facing the first fracture, of the second radiator is electrically connected with the floor through a connecting assembly, and the connecting assembly, the floor and the first conductor define a first groove. The notch of the first groove faces the first fracture; the first antenna further comprises a first feed source, the first feed source is electrically connected with the first radiator, and under the condition that the first antenna is in a working state, a slot mode is excited at the first groove.

Description

Technical Field

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

[0002] Antennas are the front end of the communication system, and antenna performance has a direct impact on the communication performance of terminal devices. With the rapid popularization of mobile terminal devices such as mobile phones and the commercialization of new technologies such as the fifth generation new radio (NR 5G), wireless fidelity (WiFi), multiple-input multiple-output (MIMO), and satellite communications, terminal devices need to support more and more frequency bands and antennas. At the same time, there is also a need for miniaturization of the whole machine antenna solution. Since the more antennas there are, the larger the space required for the antenna is, which is not conducive to the miniaturization of the antenna solution. Summary of the invention

[0003] The present application provides an electronic device that is conducive to miniaturization of antenna solutions.

[0004] In a first aspect, the present application provides an electronic device, comprising a frame, a floor, a first conductor, and a connection assembly, wherein the frame is arranged around the floor, the frame comprises a first radiator and a second radiator, the first radiator and the second radiator are respectively arranged at intervals from the floor, and a first break is provided between the first radiator and the second radiator;

[0005] One end of the first radiator facing the first break is electrically connected to the floor through the first conductor, and the first radiator and the first conductor form a radiator of the first antenna, and one end of the second radiator facing the first break is electrically connected to the floor through the connecting component, and the connecting component, the floor and the first conductor form a first groove, and the notch of the first groove faces the first break;

[0006] The first antenna also includes a first feed source, which is electrically connected to the first radiator. When the first antenna is in operation, a slot mode is excited at the first groove.

[0007] In the embodiment of the present application, since the radiator of the first antenna includes not only the first radiator located in the frame, but also the first conductor located inside the frame, compared with setting the radiator of the first antenna entirely in the frame, it is beneficial to reduce the frame space required for the first antenna, thereby facilitating the setting of more antennas in the frame without increasing the size of the frame, thereby facilitating the miniaturization of the antenna solution. At the same time, by enclosing the connection component, the floor and the first conductor to form a first groove, and when the first antenna is in a working state, a slot mode can be excited at the first groove, which is beneficial to improving the antenna performance of the first antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a schematic diagram of the antenna structure of the electronic device in the first embodiment of the present application;

[0009] Figure 2 yes Figure 1 A partial enlarged view of the first groove in the middle;

[0010] Figure 3 yes Figure 1 Schematic diagram of current distribution in the N78 frequency band of the first antenna in the middle;

[0011] Figure 4 Yes Figure 1 One of the schematic diagrams of simulation results of S parameters obtained by simulating the first antenna in the illustrated embodiment;

[0012] Figure 5 Yes Figure 1 A second schematic diagram of simulation results of S parameters obtained by simulating the first antenna in the illustrated embodiment;

[0013] Figure 6 Yes Figure 1 An efficiency curve diagram obtained by simulating the first antenna in the embodiment shown;

[0014] Figure 7 yes Figure 1 Schematic diagram of current distribution in the middle and high frequency bands of the second antenna;

[0015] Figure 8 yes Figure 1 Schematic diagram of simulated current distribution in the N78 frequency band of the first antenna in the center;

[0016] Fig. 9 yes Figure 1 Schematic diagram of the circuit topology of the antenna;

[0017] Fig.10 It is a schematic diagram of the antenna structure of the electronic device in the second embodiment of the present application;

[0018] Fig.11 yes Fig.10 A partial enlarged view of the connection between the third conductive member and the third radiator;

[0019] Fig.12 yes Fig.10 Schematic diagram of current distribution in the N78 frequency band;

[0020] Fig.13 Yes Fig.10 A schematic diagram of simulation results of S parameters obtained by simulating the antenna in the illustrated embodiment;

[0021] Fig.14 Yes Fig.10 The efficiency curve diagram of the antenna in the illustrated embodiment obtained by simulation in the N78 frequency band;

[0022] Fig.15 Yes Fig.10 The isolation curve diagram of the antenna in the embodiment shown is obtained by simulating in the N78 frequency band;

[0023] Fig.16 Yes Fig.10 Current distribution diagram of the antenna body excitation in the illustrated embodiment;

[0024] Fig.17 Yes Fig.10 The current distribution diagram of the band-blocking state in the illustrated embodiment;

[0025] Fig.18 Yes Fig.10 A current pattern diagram of the second antenna in the illustrated embodiment in the medium and high frequency bands;

[0026] Fig.19 Yes Fig.10 A simulated current distribution diagram when the first antenna is excited in the illustrated embodiment;

[0027] Fig. 20 Yes Fig.10 The simulated current distribution diagram when the second antenna is excited in the embodiment shown;

[0028] Fig.21 yes Fig.10 Schematic diagram of the circuit topology of the antenna;

[0029] Fig. 22 It is a schematic diagram of the antenna structure of the electronic device in the third embodiment of the present application;

[0030] Fig.23 yes Fig. 22 Schematic diagram of current distribution in the N78 frequency band;

[0031] Fig.24 Yes Fig. 22A schematic diagram of simulation results of S parameters obtained by simulating the antenna in the illustrated embodiment;

[0032] Fig.25 Yes Fig. 22 The efficiency curve diagram of the antenna in the illustrated embodiment obtained by simulation in the N78 frequency band;

[0033] Fig.26 Yes Fig. 22 Current distribution diagram of the second antenna in the illustrated embodiment in the medium and high frequency bands;

[0034] Fig. 27 Yes Fig. 22 A simulated current distribution diagram when the first antenna is excited in the illustrated embodiment;

[0035] Fig.28 Yes Fig. 22 The simulated current distribution diagram when the second antenna is excited in the embodiment shown. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0037] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0038] In the following, in conjunction with the accompanying drawings, an electronic device provided by an embodiment of the present application is described in detail through specific embodiments and application scenarios.

[0039] See also Figure 1The embodiment of the present application provides an electronic device, including a frame 100, a floor 200, a first conductor 500 and a connecting assembly 300, wherein the frame 100 is arranged around the floor 200, and the frame 100 includes a first radiator 110 and a second radiator 120, wherein the first radiator 110 and the second radiator 120 are respectively arranged at intervals from the floor 200, and a first break 130 is provided between the first radiator 110 and the second radiator 120;

[0040] One end of the first radiator 110 facing the first break 130 is electrically connected to the floor 200 through the first conductor 500, and the first radiator 110 and the first conductor 500 constitute a radiator of the first antenna 800, and one end of the second radiator 120 facing the first break 130 is electrically connected to the floor 200 through the connecting component 300, and the connecting component 300, the floor 200 and the first conductor 500 enclose a first groove 400, and the notch 410 of the first groove 400 faces the first break 130;

[0041] The first antenna 800 further includes a first feed source 600 , which is electrically connected to the first radiator 110 . When the first antenna 800 is in operation, a slot mode is excited at the first groove 400 .

[0042] The electronic device may be various types of terminal devices, for example, a mobile phone, a tablet computer, a smart wearable device, etc. For ease of understanding, the electronic device provided in the embodiment of the present application is further explained below by taking the electronic device as a mobile phone as an example.

[0043] The frame 100 may be a metal frame of an electronic device. The floor 200 may be a main floor of the electronic device.

[0044] The first conductor 500 may be a strip of metal sheet. In some embodiments of the present application, the first conductor 500 may be integrally formed with the floor 200. Accordingly, the first groove 400 may also be a groove formed by chip cutting of the floor 200. In other embodiments of the present application, the first conductor 500 may also be fixedly connected to the floor 200 by welding or the like.

[0045] The end of the first radiator 110 facing the first break 130 is electrically connected to the floor 200 through the first conductor 500, which specifically means that the inner side wall of the end of the first radiator 110 close to the first break 130 is electrically connected to one end of the first conductor 500, and the other end of the first conductor 500 is electrically connected to the floor 200. The inner side wall of the first radiator 110 is the side wall of the first radiator 110 facing the floor 200.

[0046] The connection component 300 may be a component with conductive properties. For example, in some embodiments of the present application, the connection component 300 may include only one metal strip. For another example, in other embodiments of the present application, the connection component 300 may also be a connection structure composed of a metal strip and related electrical components.

[0047] The frame 100 may further include a fourth radiator 140 . The first radiator 110 is located between the second radiator 120 and the fourth radiator 140 . A third break 150 is provided between the first radiator 110 and the fourth radiator 140 . The fourth radiator 140 is connected to the floor 200 .

[0048] It can be understood that when the first antenna 800 is in working state, the first radiator 110 can not only perform normal radiation based on the corresponding third break 150, but also can excite a slot mode at the first groove 400, wherein the slot mode can be a half wavelength mode of the first groove 400, or a quarter wavelength mode of the first groove 400. For details, please refer to Figure 3 When the first antenna 800 is in working state, a current I1 can be generated in the first radiator 110, and a current I2 can be generated in the first groove 400, wherein the first antenna 800 uses I1 and I2 to work together, wherein I1 is a 1 / 4 inverted-F antenna (IFA) mode from the third break 150 to the first conductor 500.

[0049] In this embodiment, since the radiator of the first antenna 800 includes the first radiator 110 located in the frame 100, it also includes the first conductor 500 located inside the frame 100. Therefore, compared with setting all the radiators of the first antenna 800 in the frame 100, it is beneficial to reduce the space of the frame 100 occupied by the first antenna 800, so that it is convenient to set more antennas in the frame 100 without increasing the size of the frame 100, and it is beneficial to achieve the miniaturization of the antenna solution. At the same time, by enclosing the connection component 300, the floor 200 and the first conductor 500 to form the first groove 400, and when the first antenna 800 is in the working state, the slot mode can be excited at the first groove 400, so that the antenna performance of the first antenna 800 is improved.

[0050] Optionally, the connection assembly 300 includes a second conductor 310 and a capacitor 320, and one end of the second radiator 120 facing the first break 130 is electrically connected to the floor 200 through the second conductor 310 and the capacitor 320 in sequence;

[0051] The slot mode includes a half-wavelength mode of the first groove 400 .

[0052] The capacitor 320 may be a capacitor element disposed across the gap 340 between the second conductor 310 and the floor 200, or the capacitor 320 may be a micro capacitor packaged in a circuit board, in which case the gap 340 between the second conductor 310 and the floor 200 may be eliminated. In addition, the capacitor 320 may be a capacitor composed of two spaced-apart pole pieces, wherein a gap 340 is provided between the pole pieces.

[0053] See also Figure 1 In some embodiments of the present application, the second conductor 310 may be a strip-shaped conductive sheet, and the second conductor 310 is located between the second radiator 120 and the floor 200. The end of the second radiator 120 facing the first break 130 is electrically connected to the floor 200 through the connecting component 300, which may mean that the inner side wall of the end of the second radiator 120 close to the first break 130 is electrically connected to one end of the second conductor 310, and the other end of the second conductor 310 is electrically connected to the floor 200 through the capacitor 320. The inner side wall of the second radiator 120 is the side wall of the second radiator 120 facing the floor 200.

[0054] In this embodiment, by making the end of the second radiator 120 facing the first break 130 electrically connected to the floor 200 through the second conductor 310 and the capacitor 320 in sequence, it is beneficial to excite the half wavelength mode of the first groove 400 at the first groove 400 when the first antenna 800 is in working state.

[0055] Optionally, a gap 340 is provided between one end of the second radiator 120 connected to the capacitor 320 and the floor 200 , the capacitor 320 is arranged across the gap 340 , and the gap 340 is communicated with the first groove 400 .

[0056] See also Figure 1 Since there is a gap 340 between the end of the second radiator 120 connected to the capacitor 320 and the floor 200, and the gap 340 is connected to the first groove 400, the end of the gap 340 away from the first groove 400 can form another notch of the first groove 400. That is, the first groove 400 has two notches, so that when the first antenna 800 is in the working state, the half wavelength mode of the first groove 400 can be excited.

[0057] In this embodiment, a gap 340 is provided between one end of the second radiator 120 connected to the capacitor 320 and the floor 200, and the gap 340 is connected to the first groove 400. Thus, the first groove 400 can have two notches. Thus, when the first antenna 800 is in working state, the half-wavelength mode of the first groove 400 can be excited, thereby improving the antenna performance of the first antenna 800.

[0058] Optionally, the operating frequency band of the first antenna 800 includes a first frequency band, and the distance between the capacitor 320 and the first break 130 is 1 / 4λ1, where λ1 is a wavelength corresponding to a center frequency point of the first frequency band.

[0059] The specific range of the first frequency band can be set as needed.

[0060] The wavelength corresponding to the center frequency point of the first frequency band refers to the wavelength in the medium of an electromagnetic wave whose operating frequency is the frequency value indicated by the center frequency point of the first frequency band.

[0061] It is understandable that in some embodiments of the present application, the distance between the capacitor 320 and the first break 130 is 1 / 4λ1. In other embodiments of the present application, the distance between the capacitor 320 and the first break 130 may also be a value around 1 / 4λ1, which can be adjusted according to actual needs.

[0062] See also Figure 2 The distance between the capacitor 320 and the first break 130 may specifically refer to: Figure 2 The length of the path indicated by the double-headed arrow a to the first break 130. It should be noted that, Figure 2 The path indicated by the double-headed arrow a is also the path along which the current flows when the slot mode is excited at the first groove 400 .

[0063] The capacitance value of the capacitor 320 may be adjusted according to the actual resonant frequency of the slot mode. For example, the capacitance value of the capacitor 320 may be 33 pF or 34 pF.

[0064] In this embodiment, since loading the capacitor 320 at the 1 / 4 wavelength position can excite the slot mode in the first groove 400, in the embodiment of the present application, by making the distance between the capacitor 320 and the first break 130 1 / 4λ1, it is beneficial to excite the slot mode at the first groove 400 during the operation of the first antenna 800.

[0065] Optionally, the frame 100 includes a first frame 180 and a second frame 190 adjacent to each other, the first radiator 110 is a radiator in the first frame 180 , and the second radiator 120 is a radiator extending from the first frame 180 to the second frame 190 ;

[0066] The second radiator 120 is the radiator of the second antenna 900. The second antenna 900 also includes a second feed source 700. The second feed source 700 is electrically connected to the second radiator 120. The working frequency band of the second antenna 900 includes a second frequency band. The first frequency band and the second frequency band are two different frequency bands.

[0067] The first frame 180 may be a side frame of the electronic device, and the second frame 190 may be a top frame of the electronic device.

[0068] The above-mentioned first frequency band and second frequency band can be set specifically as needed. For example, in some embodiments of the present application, the first frequency band is the N78 frequency band, and the second frequency band is the medium and high frequency band. Among them, the frequency range of the N78 frequency band is 3300MHz-3800MHz, and the frequency range of the medium and high frequency band is 1700MHz-3000MHz.

[0069] In this embodiment, by arranging the second antenna 900 in the second radiator 120 and making the first antenna 800 and the second antenna 900 operate in different frequency bands, the electronic device can transmit antenna signals of different frequency bands based on the first antenna 800 and the second antenna 900.

[0070] Optionally, the second frame 190 includes a third radiator 170, the third radiator 170 is adjacent to the second radiator 120, and a second break 160 is formed between the third radiator 170 and the second radiator 120;

[0071] The second frequency band includes a first sub-frequency band and a second sub-frequency band, and the first sub-frequency band and the second sub-frequency band are two different frequency bands;

[0072] The length of the second radiator 120 matches the first sub-frequency band, and the distance between the feeding point 121 in the second radiator 120 and the second break 160 matches the second sub-frequency band.

[0073] Among them, the frequency range of the first sub-band and the second sub-band can be set as needed. For example, the first sub-band can refer to the medium frequency band, and the second sub-band can refer to the high frequency band. The frequency range of the medium frequency band is 1700MHz-2400MHz, and the frequency range of the high frequency band is 2500MHz-3000MHz.

[0074] The length of the second radiator 120 mentioned above matches the first sub-frequency band, which may mean that the length of the second radiator 120 may be 1 / 2 or 1 / 4 of the wavelength corresponding to the center frequency of the first sub-frequency band, so that the second antenna 900 can transmit and receive signals of the first sub-frequency band based on the second radiator 120. Correspondingly, the distance between the feeding point 121 in the second radiator 120 and the second break 160 matches the second sub-frequency band, which may mean that the distance between the feeding point 121 in the second radiator 120 and the second break 160 is 1 / 2 or 1 / 4 of the wavelength corresponding to the center frequency of the second sub-frequency band, so that the second antenna 900 can transmit and receive signals of the second sub-frequency band based on the segmentation between the feeding point 121 in the second radiator 120 and the second break 160.

[0075] The wavelength corresponding to the center frequency point of the first sub-frequency band refers to the wavelength of an electromagnetic wave having an operating frequency of the frequency value indicated by the center frequency point of the first sub-frequency band in the medium.

[0076] See also Figure 2-3 In some embodiments of the present application, A1 is the body of the first antenna 800, with a length of 4.5 mm, the length of the first conductor 500 is 3.5 mm, the third break 150 is the end break of the first antenna 800, with a length of 1 mm, and the position of the first feed source 600 is near the third break 150 of the first antenna 800. The first groove 400 is used as an isolation groove, and the groove width can be less than or equal to 1 mm. The capacitor 320 is loaded at a position 8.5 mm away from the end of the isolation groove as the high-frequency return ground of the second antenna 900, and the capacitance is 33 pF. A2 is the body of the second antenna 900, with a length of 20 mm, the second break 160 is the end break of the second antenna 900, with a length of 1.5 mm, and the distance between the feeding point 121 of the second antenna 900 and the second break 160 is 10 mm.

[0077] like Figure 3 As shown, it is the working current mode of the first antenna 800 in the N78 frequency band. The first antenna 800 uses I1 and I2 to work together, where I1 is the 1 / 4IFA mode from the third break 150 to the first conductor 500, and the corresponding resonant frequency is around 3.6G; I2 is the 1 / 2slot mode from the return capacitor 320 to the first break 130, and the corresponding resonant frequency is around 3.2G. The slot mode corresponding to I2 will add an impedance circle in terms of impedance, which can expand the bandwidth, and the radiation efficiency can be improved by about 0.7dB. By adjusting the capacitance of capacitor 320, the slot resonance point can be controlled so that it falls in the front position of the N78 band, improving the total efficiency of the N78 front section of the first antenna 800. The resonance corresponding to I1 is designed in the rear section of N78 to ensure the total efficiency of the rear section, and the overall average total efficiency in the band can be improved by 1dB. Figure 4-Figure 6 A comparison of the effects of the slot mode on the S parameters and efficiency of the first antenna 800 is given.

[0078] Figure 7 The antenna current mode of the second antenna 900 in the medium and high frequency bands is given. Among them, the medium frequency uses the I3 current mode, which is a 1 / 4 mode from the second break 160 to the high frequency capacitor 320 back to the ground, and the high frequency uses the I4 current mode, which is a 1 / 4 mode from the second break 160 to the feeding point 121 of the second radiator 120. The first groove 400 constructs a slot mode working in the first antenna 800, and its structural feature adds an isolation groove.

[0079] Please refer to Table 1 and Table 2. Table 1 and Table 2 are comparisons of 5mm body SAR simulated by the embodiment of the present application. The first antenna 800 has a slot mode that can reduce power by 0.7dB, which can effectively reduce SAR and disperse hot spots:

[0080] Table 1:

[0081]

[0082] Table 2:

[0083]

[0084] In this implementation, by making the second frequency band include the first sub-band and the second sub-band, the length of the second radiator 120 matches the first sub-band, and the distance between the feeding point 121 in the second radiator 120 and the second break 160 matches the second sub-band, which is conducive to improving the integration of the antenna. In addition, the embodiment of the present application also has the following beneficial effects: the slot mode is controlled in the front position of the N78 band, improving the radiation efficiency of the first antenna 800 in the N78, and the IFA mode of the body of the first antenna 800 only covers the rear end of the N78, which is conducive to the miniaturization of the first antenna 800. The slot mode can effectively disperse hot spots and achieve the effect of reducing SAR.

[0085] Optionally, the electronic device further includes an electromagnetic wave energy absorption rate (Specific Absorption Rate, SAR) detection device, and the SAR detection device is electrically connected to the capacitor 320 .

[0086] The SAR detection device may be various types of SAR sensors, and the end of the capacitor 320 connected to the floor 200 may also be electrically connected to a SAR detection end of the SAR detection device.

[0087] Specifically, when the second antenna 900 is in working state, the SAR value at the second radiator 120 can be detected by the SAR detection device.

[0088] In this embodiment, the second radiator 120 serves as the main branch of the second antenna 900, and the second radiator 120 is grounded through the capacitor 320. In this way, the main branch of the second antenna 900 can be in a high-frequency suspension state. Therefore, in addition to being the radiator of the second antenna 900, the second radiator 120 can also be used as a SAR detection device. Based on this, by electrically connecting the SAR detection device to the capacitor 320, the SAR value at the second radiator 120 can be detected, thereby achieving compatibility with the SAR detection device in the second antenna 900.

[0089] Optionally, see Fig.10 , the operating frequency band of the second antenna 900 also includes the first frequency band;

[0090] The second frame 190 includes a third radiator 170 , the third radiator 170 is adjacent to the second radiator 120 , and a second break 160 is formed between the third radiator 170 and the second radiator 120 ;

[0091] The electronic device further includes a third conductor 1100, the third radiator 170 is spaced apart from the floor 200, and the third radiator 170 is electrically connected to the floor 200 through the third conductor 1100;

[0092] When the second antenna 900 operates in the first frequency band, the third conductor 1100, the third radiator 170 and the first segment 122 in the second radiator 120 jointly excite a half-wavelength mode, and the first segment 122 is the segment from the feeding point 121 of the second radiator 120 to the second break 160.

[0093] See also Fig.10 The sum of the lengths of the effective radiators from the ground end of the third conductor 1100 to the feeding point 121 is equal to half of the first wavelength, that is, Fig.12 The path indicated by the current I5 in FIG: the sum of the lengths of the third conductor 1100, the third radiator 170 and the first segment 122 is equal to half of the first wavelength. Thus, when the second antenna 900 operates in the first frequency band, the third conductor 1100, the third radiator 170 and the first segment 122 in the second radiator 120 jointly excite a half-wavelength mode. The grounding end of the third conductor 1100 refers to the end of the third conductor 1100 connected to the floor 200.

[0094] It can be understood that the sum of the lengths of the effective radiators from the ground end of the third conductor 1100 to the feeding point 121 can also be located near half of the first wavelength. Similarly, when the second antenna 900 operates in the first frequency band, the third conductor 1100, the third radiator 170 and the first segment 122 in the second radiator 120 can jointly excite a half-wavelength mode.

[0095] See also Fig.12 In some embodiments of the present application, a parasitic branch structure N78 mode is added to the end of the second antenna 900 to achieve the effect of the second antenna 900 supporting the medium and high frequency N78. Fig.12As shown, it is the antenna form of the embodiment of the present application, and the antenna part includes a first antenna 800 and a second antenna 900. The values ​​of the first antenna 800, the first groove 400 and the capacitor 320 are the same as those in the above embodiment. A2 is the body of the second antenna 900, with a length of 20mm, the second break 160 is the break at the end of the second antenna 900, with a length of 1.5mm, and the feeding point 121 of the second radiator 120 is 7mm away from the second break 160. A3 is the third radiator 170, and the third radiator 170 can be used as a parasitic branch of the second antenna 900. The length of the third radiator 170 is 3mm, and the third radiator 170 is returned to the ground through the third conductive member, and the length of the third conductive member is 10mm.

[0096] like Fig.12 As shown, it is the working current mode of two antennas in the N78 frequency band. The first antenna 800 uses I1 and I2 to work together. By adjusting the capacitance of capacitor 320, the slot resonance point can be controlled to fall in the front position of the N78 band. The second antenna 900 uses I5 to work, and I5 is a half-wave mode along the feeding point 121 to the parasitic branch. Fig.13 and Fig.14 The S parameters and efficiency diagrams of the first antenna 800 and the second antenna 900 in the B3+N78 state are given.

[0097] Fig.15 The data of the isolation of the first antenna 800 and the second antenna 900 in the same frequency of N78 are given. When the first antenna 800 is excited, the two branches on the second antenna 900 have basically no current. When the second antenna 900 is excited, the branches on both sides of the feeding point 121 excite reverse currents, and the first antenna 800 has no excitation current, realizing the N78 high isolation antenna pair, as shown in FIG. Fig.16 , Fig.17 , Fig.19 and Fig. 20 By adjusting the branch length of the second antenna 900, the position of the feeding point 121, and the high-frequency return capacitor 320, the position of the S21 band stop frequency point can be adjusted, and the N78 in-band isolation can be achieved to be above -15dB.

[0098] Fig.18 Given Fig.10 The antenna current mode of the high frequency in the second antenna 900 in the embodiment shown. The intermediate frequency uses the I3 current mode, which is a 1 / 4 mode from the second break 160 to the high frequency return ground, and the high frequency uses the I4 current mode, which is a 1 / 4 mode from the second break 160 to the feeding point 121. The intermediate frequency state can coexist with the N78 state.

[0099] Fig.19 and Fig. 20 is the current distribution simulated in this embodiment, Fig.21 This is a circuit matching topology of the antenna of this embodiment.

[0100] It should be noted that the first antenna 800 can work in N78, medium frequency band and high frequency band at the same time. In addition, at the same time, the first antenna 800 can also selectively work in some of the bands of N78, medium frequency band and high frequency band. Since the first antenna 800 and the second antenna 900 can both work in the N78 band, the electronic device can perform different actions in the signal transmission process based on the first antenna 800 and the second antenna 900. For example, the signal of the N78 band can be transmitted based on the first antenna 800, and the signal of the N78 band can be received based on the first antenna 800 and the second antenna 900. Alternatively, the signal of the N78 band can be transmitted based on the first antenna 800, and the signal of the N78 band can be received based on the second antenna 900. The specific settings can be made as needed.

[0101] In this implementation, by making the working frequency band of the second antenna 900 also include the first frequency band, the signal transmission effect of the electronic device on the first frequency band can be further improved. At the same time, since the second antenna 900 can integrate the first frequency band, the first sub-frequency band and the second sub-frequency band, it is beneficial to improve the integration degree of the second antenna 900. In addition, the embodiment of the present application has at least the following beneficial effects: the second antenna 900 supports the combination of medium and high frequency N78: the second antenna 900 is combined into the N78 frequency band and does not affect the medium and high frequency; the N78 co-frequency isolation is high: the first antenna 800 and the second antenna 900 are less affected by the mode excited in the N78 state, and the introduction of the superimposed band-stop mode has a high isolation degree in the N78 band of the two antennas.

[0102] Optionally, the resonant frequency of the second antenna 900 when operating in the first frequency band is a first resonant frequency, the resonant frequency of the first antenna 800 when operating in the first frequency band is a second resonant frequency, and the frequency value of the first resonant frequency is less than the frequency value of the second resonant frequency.

[0103] Among them, the above-mentioned first resonant frequency point can be located in the front of the first frequency band. For example, when the first frequency band is the N78 frequency band, the value range of the first resonant frequency point can be: 3200MHz-3400MHz. Correspondingly, the second resonant frequency point can be located in the second half of the N78 frequency band. Specifically, the slot resonance point can be controlled by adjusting the capacitance of capacitor 320 so that it falls in the front position of the N78 band, thereby improving the overall efficiency of the N78 front section of the first antenna 800. The resonance corresponding to I1 is designed in the rear section of N78 to ensure the total efficiency of the rear section, and the overall average total efficiency in the band can be increased by 1dB.

[0104] In this embodiment, by making the resonant frequency of the second antenna 900 when operating in the first frequency band the first resonant frequency, and the resonant frequency of the first antenna 800 when operating in the first frequency band the second resonant frequency, the frequency value of the first resonant frequency is less than the frequency value of the second resonant frequency, so as to improve the total efficiency of the first antenna 800 in the front section and the rear section of the N78 frequency band. In addition, by making the frequency value of the first resonant frequency less than the frequency value of the second resonant frequency, the first antenna 800 can be made to operate in the rear section of the first frequency band, that is, the operating frequency of the first antenna 800 is relatively high, and accordingly, the length of the required radiator is small, which is conducive to further reducing the space of the frame 100 occupied by the first radiator 110.

[0105] Optionally, the operating frequency band of the first antenna 800 includes the first frequency band, the connecting component 300 includes a fourth conductor 330, one end of the second radiator 120 facing the first break 130 is electrically connected to the floor 200 through the fourth conductor 330, the distance between the bottom of the first groove 400 and the groove 410 is 1 / 4λ2, and the slot pattern includes a quarter wavelength mode of the first groove 400;

[0106] The λ2 is a wavelength corresponding to a first frequency point, and a frequency difference between the first frequency point and a minimum frequency point in the first frequency band is less than a first preset value.

[0107] The wavelength corresponding to the first frequency point refers to the wavelength of the electromagnetic wave whose operating frequency is the frequency value indicated by the first frequency point in the medium.

[0108] The value of the first preset value can be set as needed. For example, in some embodiments of the present application, the value range of the first preset value is 90MHz-110MHz. When the first frequency band is the N78 frequency band, if the first preset value is 100MHz, the value range of the first frequency point is: 3200MHz-3400MHz.

[0109] See also Fig. 22 , the embodiments of the present application are relative to Fig.10 The main difference from the embodiment shown is that the ground return form of the second antenna 900 is changed to be directly grounded through the second conductor 310, that is, the Fig.10 The capacitor 320 in the illustrated embodiment is retained, but the first groove 400 is retained. That is, the first groove 400 has only one notch 410 facing the first break 130, so that the quarter-wavelength mode of the first groove 400 can be excited at the first groove 400, that is, the 1 / 4 IFA mode and the slot mode can be constructed on the first antenna 800 at the same time.

[0110] like Fig. 22 As shown in FIG. 1 , the antenna form of the embodiment of the present application is shown, and the antenna part includes a first antenna 800 and a second antenna 900. The size of the first antenna 800 and the second antenna 900, the position of the feeding point and Fig.10 The first orientation of the first antenna 800 adjacent to the ground position is in the form of one end open and the other end back to the ground, the size of the first groove 400 is 1 / 4λ of the front section of N78, and this embodiment does not require the loading capacitor 320.

[0111] like Fig.23 As shown, the working current mode of the two antennas in the N78 frequency band. The first antenna 800 uses I1 and I2 to work together, where I2 is not loaded with capacitor 320 and is changed to a single-ended open design, changing the 1 / 2 slot mode to a 1 / 4 slot mode, also falling in the front position of the N78 band. The second antenna 900 uses I5 to work, and I5 is a half-wave mode along the feed point 121 to the third conductor 1100. Fig.24 and Fig.25 The S parameters and efficiency diagrams of the first antenna 800 and the second antenna 900 in the B3+N78 state are given, wherein the frequency range of the B3 frequency band is 1710 MHz-1880 MHz.

[0112] Fig.26 Given Fig. 22 The second antenna 900 in the embodiment shown has a medium and high frequency antenna current mode. The medium frequency uses the I3 current mode, and the high frequency uses the I4 current mode. The medium frequency state can coexist with the N78 state. Fig. 27 and Fig.28 FIG. 4 is the current distribution simulated in this embodiment.

[0113] In this implementation, since the second radiator 120 can be directly returned to the ground through the second conductor 310, it can be compatible with more antenna designs, thereby improving the flexibility of antenna solution design.

[0114] Optionally, the length of the first radiator 110 is 0.15λ1, the length of the first conductor 500 is 0.1λ1, wherein the operating frequency band of the first antenna 800 includes a first frequency band, and λ1 is a wavelength corresponding to a center frequency point of the first frequency band.

[0115] In this embodiment, by making the length of the first radiator 110 0.15λ1 and the length of the first conductor 500 0.1λ1, it can be ensured that the first antenna 800 occupies as little space of the frame 100 as possible while having a good radiation effect, which is conducive to the miniaturization of the antenna solution.

[0116] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An electronic device, characterized in that: It comprises a frame, a floor, a first conductor and a connecting assembly, wherein the frame is arranged around the floor, the frame comprises a first radiator and a second radiator, the first radiator and the second radiator are respectively arranged at intervals from the floor, and a first break is provided between the first radiator and the second radiator; One end of the first radiator facing the first break is electrically connected to the floor through the first conductor, and the first radiator and the first conductor form a radiator of the first antenna, and one end of the second radiator facing the first break is electrically connected to the floor through the connecting component, and the connecting component, the floor and the first conductor form a first groove, and the notch of the first groove faces the first break; The first antenna also includes a first feed source, which is electrically connected to the first radiator. When the first antenna is in operation, a slot mode is excited at the first groove.

2. The electronic device according to claim 1, characterized in that: The connecting assembly includes a second conductor and a capacitor, and one end of the second radiator facing the first break is electrically connected to the floor through the second conductor and the capacitor in sequence; The slot mode includes a half-wavelength mode of the first groove.

3. The electronic device according to claim 2, characterized in that: There is a gap between one end of the second radiator connected to the capacitor and the floor, the capacitor is arranged across the gap, and the gap is connected to the first groove.

4. The electronic device according to claim 2, characterized in that: The working frequency band of the first antenna includes a first frequency band, the distance between the capacitor and the first break is 1 / 4λ1, and the λ1 is a wavelength corresponding to a center frequency point of the first frequency band.

5. The electronic device according to claim 2, characterized in that: The electronic device further comprises an electromagnetic wave energy absorption ratio SAR detection device, and the SAR detection device is electrically connected to the capacitor.

6. The electronic device according to claim 1, characterized in that: The frame includes a first frame and a second frame that are adjacent to each other, the first radiator is a radiator in the first frame, and the second radiator is a radiator extending from the first frame to the second frame; The second radiator is the radiator of the second antenna, the second antenna also includes a second feed source, the second feed source is electrically connected to the second radiator, the working frequency band of the first antenna includes a first frequency band, the working frequency band of the second antenna includes a second frequency band, and the first frequency band and the second frequency band are two different frequency bands.

7. The electronic device according to claim 6, characterized in that: The second frame includes a third radiator, the third radiator is adjacent to the second radiator, and a second break is formed between the third radiator and the second radiator; The second frequency band includes a first sub-frequency band and a second sub-frequency band, and the first sub-frequency band and the second sub-frequency band are two different frequency bands; The length of the second radiator matches the first sub-frequency band, and the distance between the feeding point in the second radiator and the second break matches the second sub-frequency band.

8. The electronic device according to claim 6, characterized in that: The operating frequency band of the second antenna also includes the first frequency band; The second frame includes a third radiator, the third radiator is adjacent to the second radiator, and a second break is formed between the third radiator and the second radiator; The electronic device further includes a third conductor, the third radiator is spaced apart from the floor, and the third radiator is electrically connected to the floor through the third conductor; When the second antenna operates in the first frequency band, the third conductor, the third radiator and the first segment in the second radiator jointly excite a half-wavelength mode, and the first segment is the segment from the feeding point of the second radiator to the second break.

9. The electronic device according to claim 8, characterized in that: The resonant frequency of the second antenna when operating in the first frequency band is a first resonant frequency, the resonant frequency of the first antenna when operating in the first frequency band is a second resonant frequency, and the frequency value of the first resonant frequency is less than the frequency value of the second resonant frequency.

10. The electronic device according to claim 1, characterized in that: The working frequency band of the first antenna includes the first frequency band, the connecting component includes a fourth conductor, the end of the second radiator facing the first break is electrically connected to the floor through the fourth conductor, the distance between the bottom of the first groove and the groove is 1 / 4λ2, and the slot pattern includes a quarter wavelength mode of the first groove; The λ2 is a wavelength corresponding to a first frequency point, and a frequency difference between the first frequency point and a minimum frequency point in the first frequency band is less than a first preset value.

11. The electronic device according to any one of claims 1 to 10, characterized in that: The length of the first radiator is 0.15λ1, and the length of the first conductor is 0.1λ1, wherein the working frequency band of the first antenna includes a first frequency band, and λ1 is a wavelength corresponding to a center frequency point of the first frequency band.

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