Electronic device

Abstract

The invention discloses electronic equipment, and relates to the technical field of electronic products. The electronic equipment comprises a frame body, a first feed source, a second feed source, a first filtering network and a mode adjusting circuit, wherein the frame body comprises a first radiating body, a second radiating body and a third radiating body which are sequentially arranged at intervals; the second radiating body comprises a first feeding point, the third radiating body comprises a second feeding point and a first grounding point, the second feeding point is located between the second fracture and the first grounding point, and the radiating body of the low-frequency antenna and the radiating body of the first medium-high frequency antenna respectively comprise a frame body area between the first grounding point and the first fracture; the first feed source is electrically connected with the first feed point through the first filter network, the second feed source is electrically connected with the second feed point, the second radiator is electrically connected with the mode adjusting circuit, the first filter network is used for blocking medium-high frequency energy, and the mode adjusting circuit is used for adjusting current modes of the low-frequency antenna and the first medium-high frequency antenna.

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] As people's demands for mobile communications continue to grow, the number of mobile communication technologies integrated into mobile terminals increases, becoming increasingly advanced and complex. This in turn requires more and more antennas. Furthermore, the increasing number and extreme use cases demand ever-higher performance from mobile terminal antennas, while minimizing interference between antennas. Mobile terminals are constantly miniaturizing to facilitate portability and use. This creates a conflict between the increasing number of antennas and the demand for improved antenna performance, while shrinking antenna space. The introduction of quad low-frequency antennas, satellite antennas, and 6- and 8-way receiving antennas in the mid- and high-frequency bands are exacerbating this conflict. A major conflict in mobile terminals is the difficulty of facilitating multi-mode transmission of low-frequency and mid- and high-frequency antennas when they are adjacent to each other, ensuring optimal radiation for each mode. Summary of the Invention

[0003] An embodiment of the present application provides an electronic device that can solve the problem of making both a low-frequency antenna and a medium- and high-frequency antenna have multiple modes while ensuring that each mode has a good radiation state.

[0004] In a first aspect, an electronic device is provided, comprising: a frame, a first feed source, a second feed source, a first filter network, and a mode adjustment circuit, wherein the frame includes a first radiator, a second radiator, and a third radiator arranged in sequence and spaced apart from each other, a first break being defined between the first radiator and the second radiator, and a second break being defined between the second radiator and the third radiator, the first feed source being a feed source for a low-frequency antenna, and the second feed source being a feed source for a first medium- and high-frequency antenna;

[0005] The second radiator includes a first feeding point, the third radiator includes a second feeding point and a first grounding point, the second feeding point is located between the second break and the first grounding point, and the radiator of the low-frequency antenna and the radiator of the first medium- and high-frequency antenna respectively include: a frame area between the first grounding point and the first break;

[0006] The first feed source is electrically connected to the first feeding point through the first filtering network, the second feed source is electrically connected to the second feeding point, and the second radiator is electrically connected to the mode adjustment circuit. The first filtering network is used to block medium and high frequency energy, and the mode adjustment circuit is used to adjust the current mode of the low frequency antenna and the first medium and high frequency antenna.

[0007] In an embodiment of the present application, by electrically connecting a mode adjustment circuit to the second radiator, and by adjusting the current mode of the first mid-high frequency antenna, the radiation modes of the low-frequency antenna and the first mid-high frequency antenna can be adjusted based on the mode adjustment circuit, thereby facilitating the realization that both the low-frequency antenna and the first mid-high frequency antenna have multiple modes. At the same time, by providing a first filter network between the first feed source and the first feed point, since the first filter network can block mid-high frequency energy, the first feed source can be prevented from generating a relatively low loading effect on the parasitic modes of the mid-high frequency, thereby facilitating the parasitic modes of the first mid-high frequency antenna to have better radiation efficiency, thereby facilitating the realization that both the low-frequency antenna and the first mid-high frequency antenna have multiple modes while having better radiation conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a rear view of the electronic device in an embodiment of the present application;

[0009] Figure 2 This is one of the structural diagrams of the antenna in the frame of the electronic device in the embodiment of the present application;

[0010] Figure 3 (a) is a back view of an electronic device in the related art;

[0011] Figure 3 (b) is a second rear view of an electronic device in the related art;

[0012] Figure 4 This is a second structural diagram of an antenna in a frame of an electronic device according to an embodiment of the present application;

[0013] Figure 5 This is the third structural diagram of the antenna in the frame of the electronic device according to the embodiment of the present application;

[0014] Figure 6 This is the fourth structural diagram of the antenna in the frame of the electronic device according to the embodiment of the present application;

[0015] Figure 7 This is the fifth structural diagram of the antenna in the frame of the electronic device according to the embodiment of the present application;

[0016] Figure 8 1 is a schematic diagram of the low-frequency B5 performance obtained by simulation of the antenna in the frame of the electronic device in the embodiment of the present application;

[0017] Figure 9 1 is a schematic diagram of the intermediate frequency B3 performance obtained by simulation of the antenna in the frame of the electronic device in the embodiment of the present application;

[0018] Figure 101 is a schematic diagram of the intermediate frequency B1 performance obtained by simulation of the antenna in the frame of the electronic device in the embodiment of the present application;

[0019] Figure 11 1 is a schematic diagram of high-frequency N41 performance obtained by simulation of an antenna in a frame of an electronic device according to an embodiment of the present application;

[0020] Figure 12 FIG1 is a schematic diagram of N78 performance obtained by simulating an antenna in a frame of an electronic device according to an embodiment of the present application;

[0021] Figure 13 Schematic diagram of current distribution and magnetic field distribution in the low-frequency B5 operating frequency band obtained by simulation of the antenna in the frame of the electronic device in the embodiment of the present application;

[0022] Figure 14 Schematic diagram of current distribution and magnetic field distribution in the intermediate frequency B3 operating frequency band obtained by simulation of the antenna in the frame of the electronic device in the embodiment of the present application;

[0023] Figure 15 Schematic diagram of current distribution and magnetic field distribution within the working frequency band of high-frequency N41 obtained by simulation of the antenna in the frame of the electronic device in the embodiment of the present application;

[0024] Figure 16 (a) is a schematic diagram of the higher-order mode 1 of N41 obtained by simulation of the antenna in the frame of the electronic device according to an embodiment of the present application;

[0025] Figure 16 (b) is a schematic diagram of the higher-order mode 2 of N41 obtained by simulation of the antenna in the frame of the electronic device according to an embodiment of the present application;

[0026] Figure 17 This is the sixth structural diagram of the antenna in the frame of the electronic device according to the embodiment of the present application;

[0027] Figure 18 This is the seventh structural diagram of the antenna in the frame of the electronic device according to the embodiment of the present application;

[0028] Figure 19 1 is a schematic diagram of the radiation efficiency curve of GPSL5 in different scenarios obtained by simulating the antenna in the frame of the electronic device in the embodiment of the present application;

[0029] Figure 20 This is a schematic diagram showing changes in the radiation pattern of an antenna in a frame of an electronic device according to an embodiment of the present application, obtained through simulation as the GPS L5 operating circuit mode changes;

[0030] Figure 21 This is the eighth structural diagram of the antenna in the frame of the electronic device according to the embodiment of the present application;

[0031] Figure 22 This is a ninth structural diagram of an antenna in a frame of an electronic device according to an embodiment of the present application;

[0032] Figure 23 This is a tenth structural diagram of an antenna in a frame of an electronic device according to an embodiment of the present application;

[0033] Figure 24 Schematic diagram of an equivalent circuit of an antenna in a frame of an electronic device in an embodiment of the present application. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0035] The terms "first," "second," and the like in this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable, where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein. Furthermore, the objects distinguished by "first" and "second" generally refer to a class and do not limit the number of objects. For example, the first object can be one or more. Furthermore, "or" in this application represents at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three options: Option 1: includes A but not B; Option 2: includes B but not A; and Option 3: includes both A and B. Furthermore, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three options, respectively. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0036] The electronic device provided in the embodiments of the present application is described in detail below through some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0037] See Figure 1 and Figure 2An embodiment of the present application provides an electronic device, comprising a frame 10, a first feed 21, a second feed 22, a first filter network 40, and a mode adjustment circuit 50. The frame 10 comprises a first radiator 11, a second radiator 12, and a third radiator 13 arranged in sequence. A first break 15 is provided between the first radiator 11 and the second radiator 12, and a second break 16 is provided between the second radiator 12 and the third radiator 13. The first feed 21 is a feed source for a low-frequency antenna 19, and the second feed 22 is a feed source for a first medium- and high-frequency antenna 110.

[0038] The second radiator 12 includes a first feeding point 124, the third radiator 13 includes a second feeding point 125 and a first grounding point 115, the second feeding point 125 is located between the second break 16 and the first grounding point 115, and the radiator of the low-frequency antenna 19 and the radiator of the first medium- and high-frequency antenna 110 respectively include: the frame 10 area between the first grounding point 115 and the first break 15;

[0039] The first feed source 21 is electrically connected to the first feeding point 124 through the first filtering network 40, the second feed source 22 is electrically connected to the second feeding point 125, and the second radiator 12 is electrically connected to the mode adjustment circuit 50. The first filtering network 40 is used to block medium and high frequency energy, and the mode adjustment circuit 50 is used to adjust the current mode of the low frequency antenna 19 and the first medium and high frequency antenna 110.

[0040] The low-frequency antenna 19 operates in a low-frequency band with a frequency range of 600 MHz to 1 GHz, and the first mid-high frequency antenna 110 operates in a mid-high frequency band with a frequency range of 1.5 GHz to 3 GHz. It is understood that the mid-high frequency energy may refer to energy in the 1.5 GHz to 3 GHz frequency band.

[0041] The frame 10 may be a metal middle frame of an electronic device. The first filter network 40 may be a filter circuit of various types, for example, see Figure 2In some embodiments of the present application, the first filter network 40 may include a sixth capacitor 41 and a third inductor 42 connected in parallel. The first filter network 40 is equivalent to a large inductor for medium and high frequencies to block medium and high frequency energy. For frequencies above 1.5 GHz, the equivalent inductance 85 is greater than 10 nH. The capacitance of the sixth capacitor 41 may be 0.15 pf, and the inductance of the third inductor 42 may be 12 nH. It should be understood that the capacitance of the sixth capacitor 41 and the inductance of the third inductor 42 in the embodiment of the present application are merely examples. In reality, other values ​​may be selected based on product requirements. For example, the capacitance of the sixth capacitor 41 may be 0.2 pf, and the inductance of the third inductor 42 may be 13 nH. The first filter network 40 cannot be equivalent to an open circuit or capacitor for medium and high frequencies because doing so would result in a low loading effect on the parasitic modes of the medium and high frequencies, deteriorating the radiation efficiency of the medium and high frequencies.

[0042] The above-mentioned mode adjustment circuit 50 may include a switch tuning circuit, and the switch tuning circuit may include two or more tuning sub-circuits controlled by a switch. In the switch tuning circuit, different tuning sub-circuits can be switched based on the switch to achieve mode switching. The tuning sub-circuit may be various common tuning circuits. For example, the tuning sub-circuit may be a circuit composed of at least one of a capacitor and an inductor. When the tuning sub-circuit includes two or more devices, the devices included therein may be connected in series and in parallel, and the specific configuration may be as needed. The number of switch tuning circuits included in the mode tuning circuit may be one or more than one. When the number of switch tuning circuits included in the mode tuning circuit is more than one, different switch tuning circuits may be connected to different positions of the frame 10.

[0043] It is understandable that, in addition to being electrically connected to the second radiator 12 , the mode adjustment circuit 50 may also be electrically connected to the first radiator 11 and the third radiator 13 , and the specific configuration may be as needed.

[0044] The radiator of the low frequency antenna 19 and the radiator of the first medium and high frequency antenna 110 may include, in addition to the frame 10 area between the first grounding point 115 and the first break 15, other frame 10 areas may also be included, for example, see Figure 2 In some embodiments of the present application, the radiator of the low-frequency antenna 19 also includes the frame 10 area between the first position point 118 and the first break 15. Correspondingly, the radiator of the first medium- and high-frequency antenna 110 also includes the frame 10 area between the first position point 118 and the first break 15. For another example, see Figure 23The radiator of the low-frequency antenna 19 also includes: the frame 10 region between the first position point 118 and the first break 15, and the frame 10 region between the end of the fourth radiator 14 away from the third radiator 13 and the first grounding point 115. Correspondingly, the radiator of the first medium- and high-frequency antenna 110 also includes: the frame 10 region between the first position point 118 and the first break 15, and the frame 10 region between the end of the fourth radiator 14 away from the third radiator 13 and the first grounding point 115.

[0045] In this embodiment, by electrically connecting the mode adjustment circuit 50 to the second radiator 12, and by adjusting the current mode of the first intermediate / high frequency antenna 110, the radiation patterns of the low-frequency antenna 19 and the first intermediate / high frequency antenna 110 can be adjusted based on the mode adjustment circuit 50, thereby facilitating the realization of multi-mode operation of both the low-frequency antenna 19 and the first intermediate / high frequency antenna 110. Furthermore, by providing the first filter network 40 between the first feed source 21 and the first feed point 124, the first filter network 40 can block intermediate / high frequency energy. This prevents the first feed source 21 from underloading the intermediate / high frequency parasitic modes, thereby facilitating the parasitic modes of the first intermediate / high frequency antenna 110 to have better radiation efficiency, thereby facilitating the realization of multi-mode operation of both the low-frequency antenna 19 and the first intermediate / high frequency antenna 110, while maintaining a good radiation state. Furthermore, the radiation pattern of the first intermediate / high frequency antenna 110 can be adjusted based on the mode adjustment circuit 50, thereby facilitating the realization of multi-mode operation of the first intermediate / high frequency antenna 110. Since the radiators of the low-frequency antenna 19 and the first medium- and high-frequency antenna 110 share the frame 10 area between the first grounding point 115 and the first break 15, and the frame 10 area between the first grounding point 115 and the first break 15 includes part of the second radiator 12 and the third radiator 13, wherein the second radiator 12 can serve as the main branch of the low-frequency antenna 19 and the parasitic branch of the medium- and high-frequency antenna, and the third radiator 13 can serve as the parasitic branch of the low-frequency antenna 19 and the main branch of the medium- and high-frequency antenna, the low-frequency antenna 19 and the medium- and high-frequency antenna can both have the radiation mode and parasitic mode of the feeding body, which is beneficial to improving the radiation efficiency of the low-frequency antenna 19 and the first medium- and high-frequency antenna 110. At the same time, since the low-frequency antenna 19 and the medium- and high-frequency antenna share the radiator, it is beneficial to reduce the space required for the low-frequency antenna 19 and the medium- and high-frequency antenna.

[0046] Optionally, the second radiator 12 includes a first tuning point 116 and a second tuning point 117 located between the first feeding point 124 and the second break 16, and the second tuning point 117 is located between the first tuning point 116 and the second break 16; the mode adjustment circuit 50 includes a first switching tuning circuit 51 and a second switching tuning circuit 52, the first tuning point 116 is grounded through the first switching tuning circuit 51, and the second tuning point 117 is grounded through the second switching tuning circuit 52.

[0047] See Figure 2 In some embodiments of the present application, the first switching tuning circuit 51 may include a first switch 511 and a first adjustment group 512, wherein the first tuning point 116, the first switch 511, and the first adjustment group 512 are connected in series, and the first adjustment group 512 may include at least two first tuning sub-circuits connected in parallel. The first tuning sub-circuit may be any common tuning circuit. During tuning based on the first switching tuning circuit 51, the first switch 511 may turn on at least one first tuning sub-circuit in the first adjustment group 512. The first switch 511 may switch between modes by changing the first tuning sub-circuit that is turned on.

[0048] Accordingly, see Figure 2 In some embodiments of the present application, the second switching tuning circuit 52 may include a second switch 521 and a second adjustment group 522, wherein the second tuning point 117, the second switch 521, and the second adjustment group 522 are connected in series, and the second adjustment group 522 may include at least two second tuning sub-circuits connected in parallel. The second tuning sub-circuits may be various common tuning circuits. During tuning based on the second switching tuning circuit 52, the second switch 521 may turn on at least one second tuning sub-circuit in the second adjustment group 522. The second switch 521 may switch between modes by changing which second tuning sub-circuit is turned on.

[0049] In this embodiment, the second radiator 12 includes a first tuning point 116 and a second tuning point 117 located between the first feeding point 124 and the second break 16, and the second tuning point 117 is located between the first tuning point 116 and the second break 16; the mode adjustment circuit 50 includes a first switch tuning circuit 51 and a second switch tuning circuit 52, the first tuning point 116 is grounded through the first switch tuning circuit 51, and the second tuning point 117 is grounded through the second switch tuning circuit 52. In this way, the current mode of the low frequency antenna 19 and the first medium and high frequency antenna 110 can be adjusted based on the first switch tuning circuit 51 and the second switch tuning circuit 52.

[0050] Optionally, the electronic device also includes a third feed source 23 and a second filtering network 90, the third feed source 23 is electrically connected to the first feeding point 124 through the second filtering network 90, the second filtering network 90 is used to block medium and high frequency energy, and the third feed source 23 is the feed source of the first N78 antenna 111.

[0051] The first N78 antenna 111 may be any antenna operating in the N78 frequency band.

[0052] The second filter network 90 may include a seventh capacitor 91 and a fourth inductor 92 connected in parallel, wherein the second filter network 90 is equivalent to a small capacitor for the N78 frequency band to adjust its impedance position, and is equivalent to a large inductor for frequency bands below the N78 frequency band, and the large inductor serves to block medium and high frequency energy. That is, the first filter network 40 and the second filter network 90 have the same function, wherein the capacitance value of the seventh capacitor 91 may be 1pf, and the inductance value of the fourth inductor 92 may be 3.6nH. It is understood that the capacitance value of the seventh capacitor 91 and the inductance value of the fourth inductor 92 in the embodiment of the present application are only examples. In fact, other values ​​can be selected according to product needs. For example, the capacitance value of the seventh capacitor 91 may be 1.2pf, and the inductance value of the fourth inductor 92 may be 4nH, etc.

[0053] It can be understood that the above-mentioned first feeding point 124 serves as the feeding point of the low-frequency antenna 19 and the first N78 antenna 111 at the same time.

[0054] In this embodiment, the electronic device further includes a third feed source 23 and a second filtering network 90, the third feed source 23 is electrically connected to the first feeding point 124 through the second filtering network 90, the second filtering network 90 is used to block medium and high frequency energy, and the third feed source 23 is the feed source of the first N78 antenna 111. In this way, on the one hand, an N78 antenna can be further integrated into the second radiator 12 to reduce the space required for the antenna in the electronic device. At the same time, since the second filtering network 90 can block medium and high frequency energy, the third feed source 23 can be avoided from loading the parasitic mode of the medium and high frequency, which is beneficial for the parasitic mode of the first medium and high frequency antenna 110 to have better radiation efficiency.

[0055] Optionally, the electronic device further includes a first capacitor 33 and a second capacitor 34 , the first feed source 21 is electrically connected to the first filter network 40 via the first capacitor 33 , and the third feed source 23 is electrically connected to the second filter network 90 via the second capacitor 34 .

[0056] The second capacitor 34 can block low-frequency energy to ensure isolation between the first feed source 21 and the third feed source 23 .

[0057] In this embodiment, by connecting a first capacitor 33 in series between the first feed 21 and the first filter network 40, the first capacitor 33 can achieve impedance matching for the low-frequency antenna 19. By connecting a second capacitor 34 in series between the third feed 23 and the second filter network 90, low-frequency energy can be blocked based on the second capacitor 34 to ensure isolation between the first feed 21 and the third feed 23.

[0058] Alternatively, see Figure 2 The electronic device also includes a first inductor 38, the first switching tuning circuit 51 includes a first switch element 511, and one end of the second filter network 90 connected to the third feed source 23 is also grounded through the first inductor 38 and the first switch element 511 in sequence.

[0059] Among them, the first inductor 38 can be connected in parallel with the feed path of the first N78 antenna 111. The first inductor 38 can be controlled to be grounded or not through the first switch element 511 to adjust the impedance position of N78, and adjust the working mode of the first medium and high frequency antenna 110. Among them, the other paths of the first switch tuning circuit 51 are used to adjust the low-frequency impedance and medium and high frequency current mode. At the same time, it also serves as the ground return path of N78. The distance between the first feeding point 124 and the first tuning point 116 can be about 3mm, otherwise it is too long for the N78 frequency band.

[0060] In this embodiment, the electronic device further includes a first inductor 38, the first switching tuning circuit 51 includes a first switching element 511, and the end of the second filtering network 90 connected to the third feed source 23 is also grounded through the first inductor 38 and the first switching element 511 in sequence. In this way, the impedance position of N78 can be adjusted based on the first inductor 38, and the working mode of the first medium and high frequency antenna 110 can be adjusted.

[0061] Optionally, the mode adjustment circuit 50 further includes a third switch tuning circuit 53 , and the third switch tuning circuit 53 is arranged across the second break 16 .

[0062] See Figure 2In some embodiments of the present application, the third switching tuning circuit 53 may include a third switch 531 and a third adjustment group, wherein the second radiator 12, the third switch 531, the third adjustment group, and the third radiator 13 are connected in series. The third adjustment group may include at least two third tuning sub-circuits connected in parallel. The third tuning sub-circuits may be various common tuning circuits. During tuning based on the third switching tuning circuit 53, the third switch 531 may turn on at least one third tuning sub-circuit in the third adjustment group. The third switch 531 may switch modes by changing which third tuning sub-circuit is turned on.

[0063] In this embodiment, by making the mode adjustment circuit 50 also include a third switch tuning circuit 53, the third switch tuning circuit 53 is arranged across the second break 16. This is conducive to achieving the adjustment of the current mode of the low-frequency antenna 19 and the first medium- and high-frequency antenna 110 based on the mode adjustment circuit 50.

[0064] Optionally, the mode adjustment circuit 50 further includes a first matching network 31 and a fourth switch tuning circuit 54 , and the second feed source 22 is electrically connected to the second feeding point 125 via the fourth switch tuning circuit 54 and the first matching network 31 in sequence.

[0065] The first matching network 31 may be various types of matching circuits. For example, the first matching network 31 includes at least one of a capacitor and an inductor. When the first matching network 31 includes more than two devices, the devices included therein may be connected in series and in parallel, and the specific configuration may be as needed.

[0066] See Figure 2In some embodiments of the present application, the fourth switching tuning circuit 54 may include a fourth switch 541, a fourth adjustment group 542, and a fifth adjustment group 543. The second feed source 22, the fourth switch 541, and the fourth adjustment group 542 are connected in series, with the fourth switch 541 connected to ground via the fifth adjustment group 543. The fourth adjustment group 542 may include at least two fourth tuning sub-circuits connected in parallel, and the fifth adjustment group 543 may include at least two fifth tuning sub-circuits connected in parallel. The fourth tuning sub-circuits and the fifth tuning sub-circuits may be various common tuning circuits. During tuning based on the fourth switching tuning circuit 54, the fourth switch 541 may simultaneously conduct: at least one fourth tuning sub-circuit in the fourth adjustment group 542, and at least one fifth tuning sub-circuit in the fifth adjustment group 543. The fourth tuning sub-circuits in the fourth adjustment group 542 and the fifth tuning sub-circuits in the fifth adjustment group 543 are both conducted. Together, the conducted fourth tuning sub-circuits in the fourth adjustment group 542 and the conducted fifth tuning sub-circuits in the fifth adjustment group 543 constitute a tuning mode of the fourth switching tuning circuit 54. The fourth switch element 541 can achieve mode switching by changing the fourth tuning sub-circuit and / or the fifth tuning sub-circuit that is turned on.

[0067] In this embodiment, by making the mode adjustment circuit 50 also include a fourth switch tuning circuit 54, the second feed source 22 is electrically connected to the second feeding point 125 through the fourth switch tuning circuit 54. This is conducive to achieving the adjustment of the current mode of the low-frequency antenna 19 and the first medium- and high-frequency antenna 110 based on the mode adjustment circuit 50.

[0068] Optionally, when the low-frequency antenna 19 is in a working state, the third switch tuning circuit 53 is in a capacitor conduction state, and the third switch tuning circuit 53 is used to switch the conducted capacitor to perform frequency switching on the low-frequency antenna 19; the fourth switch tuning circuit 54 is in an open circuit state; the second radiator 12 and the third radiator 13 are in a unidirectional current mode in the low-frequency band; the second radiator 12 and the third radiator 13 are in a reverse current mode in a frequency band higher than the low-frequency band; or,

[0069] When the intermediate / high frequency antenna operates in the intermediate frequency band, the third switch tuning circuit 53 is in an open circuit state, the second switch tuning circuit 52 is in an inductor conduction state, the first switch element 511 conducts the first inductor 38 to the ground, the first filter network 40 and the second filter network 90 are equivalent to inductors, respectively, and the second radiator 12 and the third radiator 13 are in a co-directional current mode in the intermediate frequency band; or,

[0070] When the medium and high frequency antenna operates in the high frequency band, the first switch tuning circuit 51 is in a capacitor on state, the second switch tuning circuit 52 is in a capacitor on state, the third switch tuning circuit 53 is in an off state, and the second radiator 12 and the third radiator 13 are in the same direction current mode in the high frequency band.

[0071] It should be noted that, when the low-frequency antenna 19 is in operation, the second switch tuning circuit 52 may be in a capacitor-on state, or the second switch tuning circuit 52 may be in a disconnected state.

[0072] The second switch tuning circuit 52 being in a capacitor-on state may mean that the second switch tuning circuit 52 is equivalent to a capacitor, and in this case, the second tuning point 117 is grounded via the capacitor equivalent to the second switch tuning circuit 52. Accordingly, the third switch tuning circuit 53 being in a capacitor-on state may mean that the third switch tuning circuit 53 is equivalent to a capacitor, and in this case, the capacitor equivalent to the third switch tuning circuit 53 is disposed across the second break 16. The third switch tuning circuit 53 being configured to switch the capacitor to perform frequency switching in the low-frequency band may mean that the third switch tuning circuit 53 can switch the frequency band of the low-frequency antenna 19 by switching capacitors with different capacitance values.

[0073] For ease of understanding, the following further explains the antenna design principles and the working states of each antenna in the embodiment of the present application with reference to the accompanying drawings:

[0074] Figure 3 (a) is the most commonly used design scheme for the antenna on the right side of the back view of the electronic device. LK1 is the outer contour of the metal frame of the electronic device. The upper and lower shaded areas in the middle are the motherboard and battery area of ​​the electronic device respectively. G1, the second grounding point 126, and G3 are the three frame grounding points. SL1 and SL2 are the two frame breaks on the right side respectively. In the design of the antenna in the right area, the low-frequency antenna 19 is usually placed in a lower position, and the low-frequency feeding point is set at F1, and the quarter-wavelength mode from G1 to SL1 is used for radiation. The medium and high frequency antennas are set in a slightly upper area, such as between the two breaks SL1 and SL2, and the feeding point is set at F2, using the quarter-wavelength mode from the second grounding point 126 to SL1 or the T mode from SL1 to SL2. The purpose of this is to keep the low-frequency antenna 19 away from the head when making a call, giving priority to the performance in the low-frequency head-hand environment. The upper and lower relative positions of the low frequency and medium and high frequencies can also be interchanged, but this will cause the low-frequency head-hand performance to be seriously degraded. Among them, Figure 3(b) Add a slit SL3 and add a side plug-in board on the right side of the battery compartment to realize the switch. The third switch tuning circuit 53 is connected across SL3 to tune the low frequency. In this design, the low-frequency and medium-high-frequency working currents are basically distributed in the feed body, and the parasitic mode is not used. The two antennas are highly independent and have a non-co-aperture design. Its biggest problems are that the radiation efficiency is not optimal and that the space occupied is very large, which seriously conflicts with the demand for an increasing number of antennas. Figure 3 (a) From the top of the phone to the G1 is about 95mm, Figure 3 (b) Approximately 125 mm from the top of the phone to the G1.

[0075] See Figure 2 , is a back view of the electronic device in an embodiment of the present application. In this embodiment, the motherboard area serves as the main ground G0 of the electronic device. The second break 16 / first break 15 are two side breakouts, and the fourth break 17 is a single breakout on the top right. The first ground point 115 is the bottom ground return, and the second ground point 126 is the corner capacitor ground return. The second ground point 126 is the ground return capacitor. This allows the metal frames from the second break 16 to the first break 15 and from the first break 15 to the fourth break 17 to be used for SAR sensor detection, extending the detection distance. Here, the second feed source 22 is the feed location for the mid- and high-frequency antennas, and the first feed source 21 is the feed location for the low-frequency and N78 antennas. The third switch tuning circuit 53 and the sixth switch tuning circuit 56 are switches connected in series across the second break 16 and the first break 15. The second switch tuning circuit 52 and the first switch tuning circuit 51 are ground-loading switches. This design allows both the low-frequency antenna 19 and the medium- and high-frequency antennas to use the main body + parasitic dual-mode or even multi-mode operation. The biggest feature is that the low frequency and medium- and high-frequency antennas have completely common aperture and common radiators. The working aperture of the low frequency is from the first feed source 21 downward through the second break 16 to the first grounding point 115, and the working aperture of the medium- and high-frequency is from the first grounding point 115 upward through the second break 16 to the first break 15. It can be seen that the radiators of the two are exactly the same. In this embodiment, the length from the metal edge on the right side of the second break 16 to the first grounding point 115 (the location where the third radiator 13 is connected to the main ground through metal, which can be an integral metal connection or an electrical connection such as a spring connection) is about 25mm, the length from the metal edge on the left side of the second break 16 to the metal edge on the right side of the first break 15 is about 30mm, and the length from the top (the leftmost metal outer edge of the first radiator 11) to the first grounding point 115 (the location where the third radiator 13 is connected to the main ground through metal) is about 72mm. Compared to Figure 3 Conventional protocols were shown to be approximately 24% and 42% shorter in length, respectively.

[0076] See Figure 2 for Figure 1The specific configuration of the embodiment shown here is rotated 90° counterclockwise, please refer to Figure 1The coordinate system in [1]. The third radiator 13, the second radiator 12, and the first radiator 11 are three metal frame radiators. The second break 16, the first break 15, and the third break 18 are three frame breaks, and the first ground point 115 and the second ground point 126 are two frame return points. The second feed 22 is a medium-high frequency feed. Its corresponding medium-high frequency feed path includes a first matching network 31 connected to the third radiator 13 at point A, a fourth switch 541 in series, a fourth adjustment group 542 in series with the switch, and a fifth adjustment group 543 in parallel with the switch. At the second break 16 of the break, a third switch 531 is connected to the break at points B and C. This switch path has a third adjustment group in series. At position D of the second radiator 12, a second switch 521 is located. The closer this switch is to the second break 16, the better its low-frequency performance (no more than a quarter wavelength of N41 from the second break 16). Its path is loaded with second adjustment groups 532 and 522. At position F near the first break 15 on the second radiator 12 (within 3 mm of the first break 15), there are the first feed 21 and the third feed 23. The low-frequency and N78 feed paths are merged into one path at the location where they connect to the second radiator 12, and then connected to point F on the radiator of the second radiator 12. Among them, the first capacitor 33 is a series capacitor in the low-frequency matching network. The third inductor 42 and the sixth capacitor 41 form a filtering network. This filtering network is equivalent to a large inductor for medium and high frequencies to block medium and high frequency energy. Above 1.5GHz, the equivalent inductance 85 is greater than 10nH. The optional reference values ​​of the sixth capacitor 41 are 0.15pf and the third inductor 42 are 12nH. This filtering network cannot be equivalent to an open circuit or capacitor for medium and high frequencies mainly because this will produce a low loading effect on the parasitic modes of the medium and high frequencies, deteriorating the radiation efficiency of the medium and high frequencies. The second capacitor 34 is a series capacitor on the N78 path. Its purpose is to block low-frequency energy and ensure the port isolation of the first feed 21 and the third feed 23. The second filter network 90 composed of the seventh capacitor 91 and the fourth inductor 92 needs to adjust its impedance position for N78 to be equivalent to a small capacitor, and is equivalent to a large inductor for the frequency band below N78. The role of the large inductor is the same as that of the first filter network 40. The optional reference values ​​of the seventh capacitor 91 are 1pf and the fourth inductor 92 are 3.6nH. There is a parallel inductor in the feed path of N78, namely the first inductor 38, which needs to be controlled by the first switch 511 to be grounded or not. It is used to adjust the impedance position of N78 and the working mode of MHB. The remaining paths in the first adjustment group 512 on the first switch 511 are connected to the second radiator 12 of the frame at E to adjust the low-frequency impedance, medium and high-frequency current mode, and also serve as the return path of N78. The distance between E and F is controlled at about 3mm, otherwise it will be too long for N78.A third capacitor 35 is located near the first break 15 on the first radiator 11 of the frame. It should be within 2mm of the first break 15 and serve as a parasitic return ground for N78. It also loads the T-mode of the top mid-high frequency antenna. The capacitance can be selected between 1 and 3 pf. At position G on the first radiator 11 of the frame (G should be no more than a quarter of the wavelength of N41 from the upper edge of the third inductor 42 of the break S), the feed path for the top mid-high frequency antenna is connected to it. The second matching network 32 is part of the matching network in the path, connecting the fifth switch 61 in series and parallel, the switch in series with the sixth adjustment group 62 and in parallel with the seventh adjustment group 63. The fourth feed source 24 is its feed source. The following describes the operating modes for the main operating frequency bands.

[0077] Figure 4 for Figure 2 The primary mode current distribution of the low-frequency antenna 19 in the illustrated embodiment employs a composite left-handed transmission line mode for low frequencies. The second break 16 is connected in series with a capacitor via the third switch 531, and low-frequency switching is achieved by adjusting the capacitance value in the third adjustment group. At frequencies slightly above the operating frequency band (above the low-frequency operating frequency range of 20-300 MHz), the reverse current mode is established by IL11 and IL12. Within the operating frequency band, the current mode is established by IL01 and IL02 (e.g., low-frequency bands such as B28 / B5 / B8). During low-frequency operation, the fourth switch 541 is completely disconnected to prevent the second feed source 22 from affecting the low frequency. The third switch 531 disconnects the series capacitor, and the second switch 521 is disconnected to minimize switching losses. The fifth switch 61 is unrestricted. The first switch 511 connects the capacitor to ground, thus creating a distributed parameter matching scheme for the low-frequency feed path from F to E to ground, which increases the low-frequency impedance bandwidth. This solution has a more uniform low-frequency magnetic field and avoids areas that are greatly affected by hand-gripping, which not only improves the low-frequency free-space performance but also the low-frequency head-hand performance (the more uniform the magnetic field, the smaller the dielectric loss of the antenna, so the free-space performance is improved. The antenna position does not change much, and the reduction in the human body environment remains basically unchanged, so the head-hand performance will also be improved).

[0078] See Figure 5 ,for Figure 2The main current distribution of the intermediate frequency in the embodiment shown. Among them, the mode generated by the feed path of the second feed source 22 is the same-direction IFA+suspended half-wavelength parasitic mode composed of IM01 and IM02. Here, the third switch element 531 needs to be disconnected to reduce excessive coupling. Since the length of the second radiator 12 plus the surrounding loading will be longer than half the wavelength of the intermediate frequency, an inductive loading to the ground is required on this branch. The second switch element 521 is energized to the inductor and connected to the ground, and the first switch element 511 is energized to the first inductor 38 and connected to the ground. The first filter network 40 and the second filter network 90 are both equivalent to inductors at the intermediate frequency. In this way, a better half-wavelength mode of the second radiator 12 can be excited at the intermediate frequency. In addition, it should be mentioned that due to the capacitance loading of the third capacitor 35, the intermediate frequency of the fourth feed source 24 feed path introduces a T mode. The radiators at both ends of the second grounding point 126 of this antenna are 90 degrees, so the T common mode composed of IM11 / IM12 and the T differential mode composed of IM21 / IM22 can both be adjusted to the working frequency band without radiation efficiency pits (the common mode of the T antenna is a reverse current mode on a straight line, which will have energy cancellation. Here, the first radiator 11 is a hanging angle, and the reverse current mode is not on a straight line but vertical, and the two will no longer cancel each other out). The fourth feed source 24 feeds the antenna and can also introduce a parasitic branch on the other side of the fourth fracture 17 of the fracture to further improve the radiation efficiency. Designing the low-frequency feeding branch as a half-wavelength parasitic mode of the intermediate frequency is difficult to achieve in the related art. The low-frequency feeding branch of the related art solution usually introduces high-order modes for the intermediate frequency, affecting the radiation efficiency. Compared with the related art (medium and high frequencies can only utilize the current distribution of the feeding body), the intermediate frequency energy of the second feed source 22 in the embodiment of the present application can make full use of the current distribution of the feeding body and the parasitic half-wavelength current distribution, the aperture is greatly increased and no reverse current is generated, so better radiation efficiency can be obtained. And compared with conventional designs, it is further away from the head area with greater influence, which improves the intermediate frequency performance in the head and hand state. Furthermore, after utilizing the T mode of IM11 / IM12 and IM21 / IM22, the antenna aperture can be further increased, the radiation pattern of the antenna can be increased, and the antenna radiation efficiency can be improved. Moreover, the energy is more dispersed, which can achieve the effect of low SAR. When the above current is coupled from the third radiator 13 to the second radiator 12, it is similar to the slot antenna coupling. By controlling the loading amount of the loading switch on the second radiator 12, the differential mode (reverse current mode) can be located above the working frequency band, and within the working frequency band, it is the common mode unidirectional current. Further coupling to the branch of the first radiator 11 will also have the common mode and differential mode of the T antenna. Adjusting the loading switch to ensure that the common mode (reverse current mode) of the T is lower than the operating frequency band, the first radiator 11 will form a current distribution in the same direction as the feeding branch within the operating frequency band.

[0079] See Figure 6 ,for Figure 2The main current distribution of high-frequency N41 in the illustrated embodiment is schematic. For high frequencies like N41, the length of the second radiator 12 is significantly excessive. Therefore, the low-frequency antenna 19 branch that matches the high-frequency portion in conventional related art will generate higher-order modes at N41, affecting its radiation efficiency. This embodiment requires controlling the third switch 531 to be disconnected to prevent excessive coupling. Simultaneously, the second switch 521 and the first switch 511 are adjusted to adjust the high-order current modes across the entire aperture. Within the range from the first break 15 to the first grounding point 115, high-order mode 1, consisting of IH11 / IH12 / IH13, and high-order mode 2, consisting of IH21 / IH22 / IH23 / IH24, will occur. The second switch 521 serves as the return point for the currents from IH12 and IH22, affecting both high-order mode 1 and mode 2. The first switch 511, on the other hand, serves only as the return point for the current from IH11, significantly affecting only high-order mode 1. Simultaneously adjusting the second switch 521 and the first switch 511 allows the two higher-order modes to achieve different phase superposition within the target frequency band. By adjusting the second switch 521 to load a 2-3pf capacitor to ground and the first switch 511 to load a 3pf capacitor to ground, the higher-order mode 1 is adjusted to around 2.2GHz, and the higher-lower mode 2 is adjusted to around 2.8GHz. This allows currents to superimpose in the same direction within the N41 frequency band, resulting in a current pattern composed of IH01 / IH02 in the same direction. This can be understood as the generation of the slot common mode + differential mode, as well as the parasitic T antenna's common mode + differential mode. Adjusting the slot's differential mode (reverse current) above the operating frequency band creates a common mode current pattern in the same direction within the operating frequency band. Adjusting the T's common mode (reverse current) below the operating frequency band creates a differential mode current pattern in the same direction within the operating frequency band. This results in the superposition of multiple currents in the same direction within the operating frequency band. This achieves a large-aperture, unidirectional current distribution in the high-frequency band, resolving the problem of the N41 being severely affected by high-order modes at such a large aperture, thus avoiding the serious deterioration of efficiency caused by high-order modes at large apertures. It also makes the energy more dispersed, achieving a low SAR effect.

[0080] See Figure 7 ,for Figure 2Schematic diagram of the current distribution of N78 fed by the third feed source 23 in the illustrated embodiment. When N78 is operating, the third switch 531 can be connected to a small capacitor of 1-2 pf, while the second switch 521 can be connected to a small capacitor of 1-2 pf. This effectively prevents the high-order modes generated by the third radiator 13 and the second radiator 12 from affecting N78 (these two switches can be used to either adjust the frequency position of the high-order modes or change the mode current distribution of the high-order modes). Simultaneously, the first switch 511 needs to connect to the first inductor 38 to adjust the feed matching, and other paths in the first adjustment group 512 must also connect to ground. A typical value of 1 pf can be selected. The third capacitor 35 is the parasitic return capacitance of N78, which can be selected to be around 1 pf. At this point, the primary operating mode of N78 is the slot common mode IU01, which is fed from the third feed source 23 to the third capacitor 35 and returns to ground, and the unidirectional current mode IU21 on the second radiator 12, which is regulated by the third switch 531 and the second switch 521. By controlling the fourth switch element 541 to be off, its capacitance to ground can also stimulate the slot common mode IU11 of N78, which flows from the fourth switch element 541 to the second switch element 521 and then back to ground. Furthermore, the fifth switch element 61 in the path of the top mid-high frequency fourth feed source 24 can be controlled to load the ground capacitance, achieving a current mode IU31 with a quarter-wavelength distribution of N78 from the top G position to the S third inductor 42. Multiple operating current modes are designed near N78 to increase the radiation aperture and improve radiation efficiency, while also allowing multiple modes to cover a wider frequency range (including N77 and N79). N78 has a narrow frequency band (3.3 GHz-3.8 GHz), making it difficult to simultaneously address both N78 and N77 (3.3 GHz-4.2 GHz), and addressing N79 (4.4 GHz-5 GHz) is even more challenging.

[0081] Figures 8 to 11 ,for Figure 2 The embodiments and Figure 3 (a) shows the performance comparison of some frequency bands of the traditional solution. Figure 8 The low frequency B5 performance is shown. Figure 2 The embodiment has higher free space and head-to-hand performance and a wider operating bandwidth. Figure 9 and Figure 10 The performance of the mid-frequency B3 and B1 is shown, and you can also see Figure 2 The described embodiments provide higher performance and better operating bandwidth in both free space and head-to-hand. Figure 11 The figure shows N41, the total efficiency Figure 2 The embodiment is basically the same as the traditional solution, but due to the phase synthesis of its high-order modes, Figure 2The radiation efficiency pit in this embodiment is significantly further away from the operating frequency band, thus avoiding the problem of the radiation efficiency pit in traditional solutions easily entering the operating frequency band under external environmental loads (such as when wearing a protective cover or near metal). Furthermore, the antenna's energy distribution is more central, which will be less affected in complex actual use scenarios. Figure 12 The figure shows the performance of N78 fed by the third feed source 23. It can be seen that the biggest benefit of this antenna due to multi-mode optimization and fusion is that the operating frequency band can support ultra-wideband from 3.3 GHz to 5 GHz, and can simultaneously support operation in the N77 / N78 / N79 bands. Figure 2 The antenna group in this area has obvious comprehensive performance advantages in the embodiment.

[0082] like Figure 13 The current distribution and magnetic field distribution in the low-frequency B5 working frequency band are shown in Figure 1. It can be seen that the current is distributed in the same direction and the magnetic field is distributed relatively evenly on the two branches. Figure 14 The current distribution and magnetic field distribution fed by the second feed source 22 in the intermediate frequency B3 working frequency band are shown. It can be seen that the magnetic field of the half-wavelength mode on the parasitic branch is uniformly distributed. Figure 15 The current and magnetic field distribution within the operating frequency band of the high-frequency N41 fed by the second feed source 22 are shown. It can be seen that after the high-order mode phase superposition is controlled, the current in N41 is distributed in the same direction, and the magnetic field is distributed relatively evenly across the branches. A uniform magnetic field distribution can effectively reduce dielectric loss. Figure 16 The higher order modulus 1 of N41 mentioned above is Figure 16 (a)) and higher order modulo 2( Figure 16 (b)) is expressed.

[0083] In this embodiment, when the low-frequency antenna 19 is in working state, the third switch tuning circuit 53 is in a capacitor conduction state, and the third switch tuning circuit 53 is used to switch the conducted capacitor to perform frequency switching on the low-frequency antenna 19; the fourth switch tuning circuit 54 is in an open circuit state; the second radiator 12 and the third radiator 13 are in a unidirectional current mode in the low-frequency band; the second radiator 12 and the third radiator 13 are in a reverse current mode in a frequency band higher than the low-frequency band; when the medium- and high-frequency antenna operates in the medium-frequency band, the third switch tuning circuit 53 is in an open circuit state, and the second switch tuning circuit 52 is in an inductive mode. In the on-state, the first switch element 511 connects the first inductor 38 to the ground, the first filter network 40 and the second filter network 90 are equivalent to inductors respectively, and the second radiator 12 and the third radiator 13 are in the same direction current mode in the intermediate frequency band; when the intermediate and high frequency antenna operates in the high frequency band, the first switch tuning circuit 51 is in the capacitor on-state, the second switch tuning circuit 52 is in the capacitor on-state, and the third switch tuning circuit 53 is in the off-circuit state, and the second radiator 12 and the third radiator 13 are in the same direction current mode in the high frequency band, so that the electronic device provided in the embodiment of the present application can have good antenna performance in each frequency band.

[0084] Optionally, the first radiator 11 includes a first location point 118 , and the electronic device further includes a third capacitor 35 , and the first location point 118 is grounded through the third capacitor 35 .

[0085] Among them, the third capacitor 35 cannot be too far away from the first break 15. For example, the distance between the third capacitor 35 and the first break 15 can be within 2 mm. It is mainly used to provide parasitic return ground for the first N78 antenna 111 and load the T mode of the second medium and high frequency antenna 112. The capacitance value of the third capacitor 35 can be between 1pf and 3pf.

[0086] In this embodiment, the electronic device further includes a third capacitor 35, and the first position point 118 is grounded through the third capacitor 35. In this way, the third capacitor 35 can serve as a parasitic return ground for the first N78 antenna 111. At the same time, the third capacitor 35 can also be used to load the T mode of the second medium and high frequency antenna 112.

[0087] Alternatively, see Figure 2The electronic device further includes a fourth feed source 24, a second matching network 32, a fifth switch tuning circuit 60, and a fourth capacitor 36. The electronic device includes a first side 120 and a second side 121 adjacent to each other. The first radiator 11 includes a first segment 122 located on the first side 120 and a second segment 123 located on the second side 121. The second radiator 12 and the third radiator 13 are respectively located on the first side 120. The first segment 122 includes a first position point 118 and a second grounding point 126. The first position point 118 is located between the second grounding point 126 and the first break 15. The second grounding point 126 is grounded through the fourth capacitor 36.

[0088] The second segment 123 includes a third feeding point 119 , and the fourth feed source 24 is electrically connected to the third feeding point 119 through the fifth switch tuning circuit 60 and the second matching network 32 in sequence. The fourth feed source 24 is the feed source of the second medium and high frequency antenna 112 .

[0089] The second matching network 32 can be various types of matching circuits. For example, the second matching network 32 includes at least one of a capacitor and an inductor. When the second matching network 32 includes more than two devices, the devices included therein can be connected in series and in parallel, and the specific configuration can be made as needed.

[0090] Among them, see Figure 1 and Figure 2 In some embodiments of the present application, the first side 120 may be the side of the electronic device, and the second side 121 may be the top side of the electronic device. The second side 121 includes a fourth break 17, and the second segment 123 is located between the second break 16 and the first segment 122. The above-mentioned second grounding point 126 can be used as a corner return point of the electronic device, that is, the second grounding point 126 can be located at the intersection of the first side 120 and the second side 121. Correspondingly, the fourth capacitor 36 is a return-to-ground capacitor. In this way, since the high-frequency capacitor is returned to the ground at the top angle formed by the first side 120 and the second side 121, the two sections of the metal frame from the second break 16 to the first break 15 and the first break 15 to the fourth break 17 can both be used for electromagnetic wave absorption rate sensor (Specific Absorption Rate sensor, SAR sensor) detection, and the SAR detection distance can be farther.

[0091] See Figure 2The fifth switching tuning circuit 60 may include a fifth switch 61, a sixth adjustment group 62, and a seventh adjustment group 63. The second feed source 22, the fifth switch 61, and the sixth adjustment group 62 are connected in series, with the fifth switch 61 connected to ground via the seventh adjustment group 63. The sixth adjustment group 62 may include at least two sixth tuning sub-circuits connected in parallel, and the seventh adjustment group 63 may include at least two seventh tuning sub-circuits connected in parallel. The sixth and seventh tuning sub-circuits may be various common tuning circuits. During tuning based on the fifth switching tuning circuit 60, the fifth switch 61 may simultaneously conduct: at least one sixth tuning sub-circuit in the sixth adjustment group 62, and at least one seventh tuning sub-circuit in the seventh adjustment group 63. The conducted sixth tuning sub-circuits in the sixth adjustment group 62 and the conducted seventh tuning sub-circuits in the seventh adjustment group 63 together constitute a tuning mode of the fifth switching tuning circuit 60. The fifth switch element 61 can achieve mode switching by changing the turned-on sixth tuning sub-circuit and / or the turned-on seventh tuning sub-circuit.

[0092] The distance between the third feeding point 119 and the fourth break 17 does not exceed one quarter of the wavelength of the N41 frequency band.

[0093] In this embodiment, the electronic device further includes a fourth feed source 24, a fifth switch tuning circuit 60 and a fourth capacitor 36. The electronic device includes an adjacent first side 120 and a second side 121. The first radiator 11 includes a first segment 122 located at the first side 120 and a second segment 123 located at the second side 121. The second radiator 12 and the third radiator 13 are respectively located at the first side 120. The first segment 122 includes a first position point 118 and a second grounding point 126. The first position point 118 is located between the second grounding point 126 and the first break 15. The second grounding point 126 is grounded through the fourth capacitor 36. The second segment 123 includes a third feeding point 119. The fourth feed source 24 is electrically connected to the third feeding point 119 through the fifth switch tuning circuit 60. The fourth feed source 24 is the feed source of the second medium and high frequency antenna 112. In this way, another medium and high frequency antenna can be formed on the second side 121 of the electronic device.

[0094] Optionally, the mode adjustment circuit 50 further includes a sixth switch tuning circuit 56 , and the sixth switch tuning circuit 56 is arranged across the first break 15 .

[0095] See Figure 17In some embodiments of the present application, the sixth switch tuning circuit 56 may include a sixth switch element 561, an eighth adjustment group 562, and a ninth adjustment group 563. The first radiator 11, the sixth switch element 561, the eighth adjustment group 562, and the second radiator 12 are sequentially connected in series, and the sixth switch element 561 is grounded via the ninth adjustment group 563. The eighth adjustment group 562 may include at least two eighth tuning sub-circuits connected in parallel, and the ninth adjustment group 563 may include at least two ninth tuning sub-circuits connected in parallel. The eighth and ninth tuning sub-circuits may be various common tuning circuits. During tuning based on the sixth switch tuning circuit 56, the sixth switch element 561 can simultaneously turn on: at least one eighth tuning sub-circuit in the eighth adjustment group 562, and at least one ninth tuning sub-circuit in the ninth adjustment group 563. The turned-on eighth tuning sub-circuit in the eighth adjustment group 562 and the turned-on ninth tuning sub-circuit in the ninth adjustment group 563 together constitute a tuning mode of the sixth switch tuning circuit 56. The sixth switch element 561 can switch modes by changing which eighth tuning sub-circuit and / or ninth tuning sub-circuit is turned on.

[0096] A switch sixth switch tuning circuit 56 is connected to both sides of the first break 15 of the break. The switch connects H and I on both sides of the break, and H and I are as close to the break as possible.

[0097] See Figure 17 In the embodiment of the present application, a sixth switch tuning circuit 56 can be connected to both sides of the first break 15. The sixth switch tuning circuit 56 is connected to H and I on both sides of the first break 15. H and I are as close to the first break 15 as possible. When the electronic device operates at a low frequency, Figure 2On the basis of the illustrated embodiment, the sixth switch tuning circuit 56 is turned on through a small capacitor, thereby coupling a portion of the low-frequency energy to the first radiator 11, resulting in an increase in the low-frequency aperture. At the same time, because the first break 15 is close to the low-frequency feed point, this coupling is enhanced while adjusting the low-frequency impedance position so that the low-frequency impedance is more inclined to the long direction, thereby improving the problem of short low-frequency impedance caused by the short branch of the second radiator 12. At this time, the low-frequency operating mode is a three-branch composite left-handed transmission line mode composed of IL001 / IL002, which has a larger aperture, better floor current excitation in the same direction, more uniform magnetic field, and better performance. When the first medium- and high-frequency antenna 110 is working, if the sixth switch tuning circuit 56 is disconnected, it is difficult to couple energy because the branch of the first radiator 11 is too far away from the second feeding point 125. By turning on the eighth adjustment group 562 of the sixth switch tuning circuit 56 through capacitance, the coupling can be increased, thereby stimulating a quarter-wavelength mode in the high-frequency range from G2 to the first break 15, thereby achieving a high-frequency, large-aperture, unidirectional current operating mode composed of IH001 / IH002 / IH003. Switching the eighth adjustment group 562 of the sixth switch tuning circuit 56 to a ground capacitance or inductance value enables frequency switching between medium and high frequencies.

[0098] In this embodiment, by making the mode adjustment circuit 50 also include a sixth switch tuning circuit 56, the sixth switch tuning circuit 56 is arranged across the first break 15. This is conducive to achieving the adjustment of the current mode of the low-frequency antenna 19 and the first medium- and high-frequency antenna 110 based on the mode adjustment circuit 50.

[0099] Alternatively, see Figure 18 When the first radiator 11 includes a first position point 118 and the electronic device includes a third capacitor 35, the electronic device also includes a fifth feed source 25 and a second inductor 39. The fifth feed source 25 is electrically connected to the first position point 118 through the second inductor 39. The fifth feed source 25 is the feed source of the GPS L5 antenna 113.

[0100] Among them, the situation where the above-mentioned first radiator 11 includes a first position point 118 and the electronic device includes a third capacitor 35 may mean: the first radiator 11 includes a first position point 118, the electronic device also includes a third capacitor 35, and the first position point 118 is grounded through the third capacitor 35.

[0101] See Figure 18 , the embodiment of the present application is Figure 17Based on the illustrated embodiment: at the first position point 118J of the first radiator 11, the original return capacitor is replaced with the feed path of the GPS L5, wherein the second inductor 39 is connected in series to block medium and high frequency energy. The third capacitor 35 is a small capacitor that serves as the return path of the first N78 antenna 111. The third capacitor 35 and the second inductor 39 jointly perform impedance matching for the GPS L5. Because the distance from the second grounding point 126 to the first break 15 is short, the initial impedance position of the GPS L5 will be located in the first quadrant of the impedance circle, requiring parallel capacitors and series inductors for matching. If the distance from the second grounding point 126 to the first break 15 is too long, causing the initial impedance of the GPS L5 to reach the fourth quadrant, the matching network on the channel needs to add another parallel capacitor between the second inductor 39 and the fifth feed source 25.

[0102] For the working current mode of GPS L5, different modes can be used in different scenarios:

[0103] Scenario 1: GPS L5, cellular low-frequency, and cellular medium- and high-frequency antennas coexist, and mutual interference between antennas must be avoided. Figure 18 The switches in Figure 2 The illustrated embodiment illustrates configuration of each frequency band, with each switch in state 1. GPS L5 operates in a left-hand mode I51, from G2 to first break 15, referred to as Mode 1. At this point, the sixth switch tuning circuit 56 is in an inductively conductive state, acting as a neutralizer to isolate GPS L5 from low-frequency signals.

[0104] Scenario 2: GPS L5 is operating, cellular low-frequency is operating, and cellular medium- and high-frequency are not operating. In this case, only GPS L5 and low-frequency coexist. By controlling the fifth switch tuning circuit 60 to connect the capacitor to ground, the T mode of the entire branch of the first radiator 11 is loaded near GPS L5, achieving dual-mode operation consisting of T common mode composed of I51 / I56 and T differential mode composed of I54 / I55, which is called Mode 2. At this time, the switch state of the fifth switch tuning circuit 60 is State 2 (state 2), and the remaining switches are State 1. At this time, the sixth switch tuning circuit 56 is in the inductive conduction state, acting as a neutral line to solve the isolation problem between GPS L5 and low-frequency.

[0105] Scenario 3: GPS L5 is operating, cellular low-band is inoperative, and cellular medium- and high-band are operating. In this scenario, only GPS L5 and the medium- and high-band coexist. The sixth switch tuning circuit 56 can be controlled to be in a conductive state through a small capacitor, coupling GPS L5 energy to the second radiator 12. This creates a co-directional current operating mode composed of I51 and I52, referred to as Mode 3. At this point, the switch state of the sixth switch tuning circuit 56 is State 2.

[0106] Scenario 4: GPS L5 is operating, cellular low-frequency (LF) is inoperative, and cellular mid- and high-frequency (MF) are inoperative. In this scenario, only GPS L5 is present. Switch SW5 can be configured according to Scenario 2, and the sixth switch tuning circuit 56 can be configured according to Scenario 3. GPS L5 now operates in a multi-mode combination of Scenario 2 and Scenario 3, referred to as Mode 4.

[0107] Scenario 5: GPS L5 does not work, cellular frequency bands work differently. Figure 2 The illustrated embodiments and Figure 17 The switch states of the illustrated embodiment are configured.

[0108] Other scenarios: When a cell is not dormant, but the RSRP of the cellular antenna F2 or F4 next to GPS L5 is relatively weak, you can also configure the state according to the corresponding cell being inoperative. In this case, the cell relies on the remaining antennas to operate, and this area is more available for GPS L5 to operate.

[0109] In the above different scenarios, GPS L5 has different radiation efficiencies and radiation patterns. When GPS is prioritized, the radiation pattern can be scanned and switched based on its CN0 value.

[0110] Combined with the communication IC, the cellular and GPS L5 related trigger signals are judged, and then the relevant switches are controlled after judging the above scenarios. This can optimize the GPS L5 performance in different scenarios, including radiation efficiency and pattern scanning. Table 1 is the switch configuration truth table:

[0111] Table 1:

[0112]

[0113] See Figure 19 The radiation efficiency curves of GPS L5 in different scenarios are shown in Figure 1, where case 1 is the above-mentioned mode 1, case 2 is the above-mentioned mode 2, and case 3 is the above-mentioned mode 4. Figure 19 It can be seen that as the working current mode of GPS L5 changes, its radiation efficiency will also change significantly. Therefore, it gives the communication IC more room to play and maximize the efficiency of GPS L5 when the scene allows. Figure 20 As shown in the figure, the radiation pattern changes as the GPS L5 operating circuit mode changes. This gives the communication IC more room to play, and when the scenario allows, it can scan and switch the GPS L5 pattern based on CN0.

[0114] In this embodiment, when the first radiator 11 includes a first position point 118 and the electronic device includes a third capacitor 35, the electronic device also includes a fifth feed source 25 and a second inductor 39. The fifth feed source 25 is electrically connected to the first position point 118 through the second inductor 39. The fifth feed source 25 is the feed source of the GPS L5 antenna 113. In this way, the GPS L5 frequency band can be further integrated into the first radiator 11, which is beneficial to further reduce the space required for the antenna in the electronic device.

[0115] Alternatively, see Figure 21 In the case where the first radiator 11 includes a first location point 118 and the electronic device includes a first capacitor 33 and a third capacitor 35, the electronic device further includes a fifth feed source 25, a second inductor 39, and a double-pole double-throw switch (DPDT) 55. The fifth feed source 25 is electrically connected to the first location point 118 via the DPDT 55 and the second inductor 39 in sequence. The first feed source 21 is electrically connected to the first capacitor 33 via the DPDT 55. The fifth feed source 25 is a feed source for the GPS L5 antenna 113.

[0116] Wherein, when the double-pole double-throw switch 55 is in the first state, the double-pole double-throw switch 55 conducts the fifth feed source 25 and the second inductor 39, and the double-pole double-throw switch 55 conducts the first feed source 21 and the first capacitor 33;

[0117] When the double-pole double-throw switch 55 is in the second state, the double-pole double-throw switch 55 conducts the fifth feed source 25 and the first capacitor 33 .

[0118] The above-mentioned first radiator 11 includes a first position point 118, and the electronic device includes a first capacitor 33 and a third capacitor 35, which may refer to: the first radiator 11 includes a first position point 118, and the electronic device also includes a first capacitor 33 and a third capacitor 35, the first position point 118 is grounded through the third capacitor 35, and the first feed source 21 is electrically connected to the first filtering network 40 through the first capacitor 33.

[0119] See Figure 21 , the embodiment of the present application is Figure 17Based on the illustrated embodiment, at point I of the first radiator 11, the original ground return capacitor is replaced with a feed path for the GPS L5. The fifth feed source 25 serves as the feed source for the GPS L5, and a second inductor 39 is connected in series to block mid- and high-frequency energy. A small third capacitor 35 serves as the ground return path for N78, and the third capacitor 35 and the second inductor 39 jointly provide impedance matching for the GPS L5. A double-pole double-throw switch 55 is added to the low-frequency feed path of the first feed source 21 and the low-frequency feed path of the fifth feed source 25 to switch the feed path between the GPS L5 and the low-frequency antenna 19. When the communication IC recognizes that the GPS L5 and the low-frequency antenna are operating together, it controls the double-pole double-throw switch 55 to connect the fifth feed source 25 to the feed path of the second inductor 39 and the first feed source 21 to the feed path of the first capacitor 33. When the communication IC identifies low-frequency sleep or low-frequency antenna 19 RSRP is very poor, it controls the double-pole double-throw switch 55 to connect the fifth feed source 25 to the path where the first capacitor 33 is located for feeding, so that GPS L5 can use low-frequency mode feeding to obtain better radiation capability.

[0120] In this embodiment, when the first radiator 11 includes a first position point 118 and the electronic device includes a first capacitor 33 and a third capacitor 35, the electronic device further includes a fifth feed source 25, a second inductor 39 and a double-pole double-throw switch 55. The fourth feed source 24 is electrically connected to the first position point 118 through the double-pole double-throw switch 55 and the second inductor 39 in sequence, and the first feed source 21 is electrically connected to the first capacitor 33 through the double-pole double-throw switch 55. The fifth feed source 25 is the feed source of the GPS L5 antenna 113. In this way, the GPS L5 frequency band can be further integrated into the first radiator 11, which is conducive to further reducing the space required for the antenna in the electronic device. At the same time, when the communication IC identifies low-frequency sleep or the low-frequency antenna 19 RSRP is very poor, the double-pole double-throw switch 55 can be controlled to connect the fifth feed source 25 to the path where the first capacitor 33 is located for feeding, so that the GPS L5 can use the low-frequency mode feeding to obtain better radiation capability.

[0121] Alternatively, see Figure 22 When the second radiator 12 includes a second tuning point 117, the electronic device also includes a sixth feed source 26 and a third matching network 70. The sixth feed source 26 is electrically connected to the second tuning point 117 through the third matching network 70. The sixth feed source 26 is the feed source of the second N78 antenna 114.

[0122] Among them, the situation where the second radiator 12 includes a second tuning point 117 may mean that: the second radiator 12 includes a first tuning point 116 and a second tuning point 117 located between the first feeding point 124 and the second break 16, and the first tuning point 116 is located between the second tuning point 117 and the second break 16; the mode adjustment circuit 50 includes a first switching tuning circuit 51 and a second switching tuning circuit 52, the first tuning point 116 is grounded through the first switching tuning circuit 51, and the second tuning point 117 is grounded through the second switching tuning circuit 52.

[0123] The third matching network 70 can be any type of matching circuit, see Figure 22 In some embodiments of the present application, the third matching network 70 includes an eighth capacitor 71, a ninth capacitor 72 and a fifth inductor 73, wherein the second tuning point 117, the eighth capacitor 71, the ninth capacitor 72 and the sixth feed source 26 are connected in series in sequence, and one end of the eighth capacitor 71 connected to the ninth capacitor 72 is also grounded through the fifth inductor 73.

[0124] See Figure 22 , the embodiment of the present application is Figure 17 Based on the illustrated embodiment, the feed path of another N78 antenna is connected at the second tuning point 117 of the second radiator 12. The third matching network 70 needs to consist of at least an eighth capacitor 71, a fifth inductor 73, and a ninth capacitor 72. The primary purpose of this third matching network 70 is to provide impedance matching for the N78 and address isolation issues between the N78 and antennas operating below 3 GHz. At this point, the fourth switch 541 connects or disconnects a small capacitor in parallel to the N78 of the sixth feed 26, creating a parasitic return path to ground. The third switch 531 enables channel switching for the N78 of the sixth feed 26. The second switch 521, a switch adjacent to the N78 feed path, disconnects or connects the inductor / small capacitor. At this point, the operating current mode of the N78 is a slot common-mode, unidirectional current coupled from the second tuning point 117 through the second break 16 to the ground of the fourth switch 541. The isolation of the N78 fed by the sixth feed 26 and the third feed 23 can be improved by adjusting the second switch 521 and the first switch 511.

[0125] In this embodiment, when the second radiator 12 includes a second tuning point 117, the electronic device further includes a sixth feed source 26 and a third matching network 70. The sixth feed source 26 is electrically connected to the second tuning point 117 through the third matching network 70. The sixth feed source 26 is the feed source of the second N78 antenna 114. In this way, the second N78 antenna 114 can be further integrated into the second radiator 12, which is beneficial to further improve the degree of integration of the antenna in the second radiator 12, thereby further reducing the space required for the antenna in the electronic device.

[0126] Alternatively, see Figure 23 The frame 10 also includes a fourth radiator 14, and a third break 18 is provided between the fourth radiator 14 and the third radiator 13. The electronic device also includes a fifth capacitor 37, and the fifth capacitor 37 is arranged across the third break 18, and the end of the fourth radiator 14 away from the third radiator 13 is grounded.

[0127] Please see, 23, the embodiment of this application is in Figure 17 On the basis of the illustrated embodiment: a third break 18 is added below the third radiator 13. A fifth capacitor 37 is connected in series at both ends of the third break 18. The fifth capacitor 37 can be a lumped component, a distributed capacitor (flexible printed circuit (FPC), steel sheet, aluminum alloy, etc. metal coupling), or a switch-switched capacitor. The first grounding point 115 of the third radiator 13, which originally directly returns to the ground, is changed to a distributed Z-shaped or other shaped inductor return to the ground to form an equivalent inductor 85, which is connected to the third radiator 13 at the first grounding point 115. The function of the equivalent inductor 85 is to allow the low-frequency energy of the first feed source 21 to be better coupled from the left section to the right section of the third radiator 13 through the first grounding point 115, which is magnetic field coupling. The function of the fifth capacitor 37 is to allow the low-frequency energy to be better coupled from the third radiator 13 to the fourth radiator 14, which is electric field coupling. By adjusting the structural dimensions of each branch and the amount of loading at each location, more composite modes can be achieved at low frequencies, including the four-branch composite left-handed and right-handed transmission line mode composed of IL31 / IL32 / I33 (composed of the slot common differential mode and T common differential mode of multiple branches), the T antenna common mode of the third radiator 13 composed of IL41 / IL42, and the slot differential mode composed of IL51 / IL52. This can achieve a larger aperture, excite a stronger floor longitudinal mode, and a more uniform magnetic field, thereby further improving the low-frequency radiation efficiency. Figure 24 The figure shows the equivalent circuit of the left-hand transmission line of the low-frequency structure. The series capacitor and the parallel inductor are the left-hand transmission line characteristic distribution components in the circuit. The first equivalent load 83 and the second equivalent load 84 are the two-terminal loads. Figure 24 The first equivalent capacitor 81 in can be equivalent to Figure 23 The first break 15 in the second equivalent capacitor 82 can be equivalent to Figure 23 The second break 16 in the first equivalent load 83 is equivalent to Figure 23 All devices connected to the first radiator 11 and the second equivalent load 84 are Figure 23 All devices connected to the fourth radiator 14.

[0128] In this embodiment, the frame 10 further includes a fourth radiator 14, a third break 18 is provided between the fourth radiator 14 and the third radiator 13, the electronic device further includes a fifth capacitor 37, the fifth capacitor 37 is arranged across the third break 18, and the end of the fourth radiator 14 away from the third radiator 13 is grounded, thereby further improving the efficiency of low-frequency radiation.

[0129] 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 this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. An electronic device, characterized in that: include: A frame, a first feed source, a second feed source, a first filter network, and a mode adjustment circuit. The frame includes a first radiator, a second radiator, and a third radiator arranged in sequence. A first break is defined between the first radiator and the second radiator, and a second break is defined between the second radiator and the third radiator. The first feed source is a feed source for a low-frequency antenna, and the second feed source is a feed source for a first medium- and high-frequency antenna. The second radiator includes a first feeding point, the third radiator includes a second feeding point and a first grounding point, the second feeding point is located between the second break and the first grounding point, and the radiator of the low-frequency antenna and the radiator of the first medium- and high-frequency antenna respectively include: a frame area between the first grounding point and the first break; The first feed source is electrically connected to the first feeding point through the first filtering network, the second feed source is electrically connected to the second feeding point, and the second radiator is electrically connected to the mode adjustment circuit. The first filtering network is used to block medium and high frequency energy, and the mode adjustment circuit is used to adjust the current mode of the low frequency antenna and the first medium and high frequency antenna.

2. The electronic device according to claim 1, wherein The second radiator includes a first tuning point and a second tuning point located between the first feeding point and the second break, and the second tuning point is located between the first tuning point and the second break; the mode adjustment circuit includes a first switching tuning circuit and a second switching tuning circuit, the first tuning point is grounded through the first switching tuning circuit, and the second tuning point is grounded through the second switching tuning circuit.

3. The electronic device according to claim 2, wherein: The electronic device also includes a third feed source and a second filtering network. The third feed source is electrically connected to the first feeding point through the second filtering network. The second filtering network is used to block medium and high frequency energy. The third feed source is the feed source of the first N78 antenna.

4. The electronic device according to claim 3, wherein: The electronic device further includes a first capacitor and a second capacitor. The first feed source is electrically connected to the first filter network via the first capacitor, and the third feed source is electrically connected to the second filter network via the second capacitor.

5. The electronic device according to claim 4, characterized in that The electronic device further includes a first inductor, the first switch tuning circuit includes a first switch element, and one end of the second filter network connected to the third feed source is further grounded through the first inductor and the first switch element in sequence.

6. The electronic device according to claim 5, characterized in that The mode adjustment circuit further includes a third switch tuning circuit, and the third switch tuning circuit is arranged across the second break.

7. The electronic device according to claim 6, wherein: The mode adjustment circuit further includes a first matching network and a fourth switch tuning circuit, and the second feed source is electrically connected to the second feed point through the fourth switch tuning circuit and the first matching network in sequence.

8. The electronic device according to claim 7, wherein: When the low-frequency antenna is in operation, the third switch tuning circuit is in a capacitor conduction state, and the third switch tuning circuit is used to switch the conducted capacitor to perform frequency switching on the low-frequency antenna; the fourth switch tuning circuit is in an open circuit state; the second radiator and the third radiator are in a co-directional current mode in a low-frequency band; the second radiator and the third radiator are in a reverse current mode in a frequency band higher than the low-frequency band; or, When the intermediate / high frequency antenna operates in an intermediate frequency band, the third switch tuning circuit is in an open circuit state, the second switch tuning circuit is in an inductor conduction state, the first switch element conducts between the first inductor and the ground, the first filter network and the second filter network are equivalent to inductors, respectively, and the second radiator and the third radiator are in a co-directional current mode in the intermediate frequency band; or, When the medium and high frequency antenna operates in the high frequency band, the first switch tuning circuit is in a capacitor on state, the second switch tuning circuit is in a capacitor on state, the third switch tuning circuit is in an off state, and the second radiator and the third radiator are in a unidirectional current mode in the high frequency band.

9. The electronic device according to claim 3, wherein: The first radiator includes a first location point, the electronic device further includes a third capacitor, and the first location point is grounded through the third capacitor.

10. The electronic device according to claim 9, characterized in that The electronic device further includes a fourth feed source, a second matching network, a fifth switch tuning circuit, and a fourth capacitor. The electronic device includes a first side and a second side adjacent to each other. The first radiator includes a first segment located on the first side and a second segment located on the second side. The second radiator and the third radiator are respectively located on the first side. The first segment includes a first position point and a second grounding point. The first position point is located between the second grounding point and the first break. The second grounding point is grounded via the fourth capacitor. The second segment includes a third feeding point, and the fourth feed source is electrically connected to the third feeding point through the fifth switch tuning circuit and the second matching network in sequence. The fourth feed source is the feed source of the second medium and high frequency antenna.

11. The electronic device according to any one of claims 1 to 10, characterized in that: The mode adjustment circuit further includes a sixth switch tuning circuit, and the sixth switch tuning circuit is arranged across the first break.

12. The electronic device according to claim 11, wherein: When the first radiator includes a first position point and the electronic device includes a third capacitor, the electronic device also includes a fifth feed source and a second inductor, the fifth feed source is electrically connected to the first position point through the second inductor, and the fifth feed source is the feed source of the GPS L5 antenna.

13. The electronic device according to claim 11, wherein: In the case where the first radiator includes a first position point and the electronic device includes a first capacitor and a third capacitor, the electronic device further includes a fifth feed source, a second inductor and a double-pole double-throw switch, the fifth feed source is electrically connected to the first position point through the double-pole double-throw switch and the second inductor in sequence, the first feed source is electrically connected to the first capacitor through the double-pole double-throw switch, and the fifth feed source is a feed source of the GPS L5 antenna; Wherein, when the double-pole double-throw switch is in the first state, the double-pole double-throw switch conducts the fifth feed source and the second inductor, and the double-pole double-throw switch conducts the first feed source and the first capacitor; When the double-pole double-throw switch is in the second state, the double-pole double-throw switch conducts the fifth feed source and the first capacitor.

14. The electronic device according to claim 11, wherein: In the case where the second radiator includes a second tuning point, the electronic device further includes a sixth feed source and a third matching network, the sixth feed source is electrically connected to the second tuning point through the third matching network, and the sixth feed source is the feed source of the second N78 antenna.

15. The electronic device according to claim 11, wherein The frame further includes a fourth radiator, a third break is defined between the fourth radiator and the third radiator, the electronic device further includes a fifth capacitor, the fifth capacitor is disposed across the third break, and one end of the fourth radiator away from the third radiator is grounded.

Images