Electronic device

Abstract

The application discloses an electronic device, and belongs to the technical field of electronic devices. The electronic device comprises a first antenna, a second antenna and a break joint provided on the electronic device, and the first antenna and the second antenna are respectively located on two sides of the break joint; the first antenna comprises a first radiator, a first feeding module, a first tuning network, a first grounding point and a third grounding point which are arranged on the first radiator; the second antenna comprises a second radiator, a second feeding module, a second tuning network, a second grounding point and a tuning unit which are arranged on the second radiator; in a first case, the first antenna and the second antenna unit work at the same frequency by controlling the first tuning network and the second tuning network; in a second case, the working frequency of the first antenna is controlled to be smaller than the working frequency of the second antenna unit by controlling the first tuning network and the second tuning network, so that the first antenna and the second antenna work at the same frequency in the case that a human body is close to the electronic device.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electronic equipment, and particularly relates to an electronic equipment. BACKGROUND

[0002] Multiple-in multiple-out (MIMO) antenna technology is an important functional module on an electronic equipment, and at least two antennas of different frequency bands are distributed on many electronic equipments to support double receiving and transmitting functions. The low-frequency antenna needs a larger space, which makes the double low-frequency antennas of the electronic equipment be mostly distributed in the upper half and the lower half of the whole machine.

[0003] The low-frequency antenna of the electronic equipment works in different scenarios, such as free space (FS) mode, handheld mode, head-hand mode, etc., and has certain requirements on the performance of the antenna. When the human body is close to the mobile device, the performance of the antenna will be reduced due to the fact that the organs of the human body are lossy media, so the farther the human body is from the antenna, the better the performance of the antenna will be. The low-frequency antenna distributed in the upper half of the whole machine has a small performance reduction in handheld / head-hand mode because it cannot be held by the hand, and the performance of the antenna in handheld / head-hand mode is also good. The antenna distributed in the bottom has a large performance reduction in handheld / head-hand mode because the antenna body is directly held by the hand, and the performance of the antenna in handheld / head-hand mode is also poor. How to design the distribution of the antenna in the electronic equipment and improve the performance of the low-frequency antenna is a problem to be solved at present. SUMMARY

[0004] The embodiment of the present application provides an electronic equipment, which can solve the problem of how to design the distribution of the antenna in the electronic equipment to improve the performance of the low-frequency antenna.

[0005] The embodiment of the present application provides an electronic equipment, which comprises a first antenna, a second antenna and a break joint arranged on the electronic equipment, and the first antenna and the second antenna are respectively located on two sides of the break joint.

[0006] The first antenna comprises a first radiator, a first feeding module, a first tuning network, a first grounding point and a third grounding point, the third grounding point is arranged at the break, the first feeding module and a first end of the first tuning network are connected to a first feeding point of the first radiator, a second end of the first tuning network is grounded, and the first grounding point is arranged between the first feeding point and the third grounding point; the second antenna comprises a second radiator, a second feeding module, a second tuning network, a second grounding point and a tuning unit, a first end of the tuning unit is arranged between the break and the second grounding point, the second feeding module is connected to a second feeding point of the second radiator, the second feeding point is arranged between the second grounding point and a first end of the second tuning network, and a second end of the second tuning network and a second end of the tuning unit are both grounded;

[0007] In the first case, the first antenna and the second antenna are controlled to work at the same frequency by controlling the first tuning network and the second tuning network; in the second case, the working frequency of the first antenna is controlled to be smaller than the working frequency of the second antenna by controlling the first tuning network and the second tuning network, so that the first antenna and the second antenna work at the same frequency when a human body is close to the electronic device; and the first antenna and the second antenna both work at a low frequency.

[0008] In the embodiment of the present application, the electronic device comprises a first antenna, a second antenna and a break, the first antenna and the second antenna are located on two sides of the break respectively, the first antenna comprises a first radiator, a first feeding module, a first tuning network, a first grounding point and a third grounding point, the third grounding point is arranged at the break, the first feeding module and the first end of the first tuning network are connected to the first feeding point of the first radiator, the second end of the first tuning network is grounded, the first grounding point is arranged between the first feeding point and the third grounding point, the second antenna comprises a second radiator, a second feeding module, a second tuning network, a second grounding point and a tuning unit, the first end of the tuning unit is arranged between the break and the second grounding point, the second feeding module is connected to the second feeding point of the second radiator, the second feeding point is arranged between the second grounding point and the first end of the second tuning network, the second end of the second tuning network and the second end of the tuning unit are grounded, wherein in a first case, the first antenna and the second antenna unit are controlled to work at the same frequency by controlling the first tuning network and the second tuning network; in a second case, the working frequency of the first antenna is controlled to be smaller than the working frequency of the second antenna unit by controlling the first tuning network and the second tuning network, so that the first antenna and the second antenna work at the same frequency in the case that the human body is close to the electronic device; wherein the first antenna and the second antenna both work at low frequency. In the embodiment of the present application, the working frequency of the first antenna is controlled by the first tuning network in the first antenna, and the working frequency of the second antenna is controlled by the second tuning network in the second antenna, so that the antenna can have good performance in different states of the electronic device. BRIEF DESCRIPTION OF DRAWINGS

[0009] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of the present application and illustrate the illustrative embodiments of the present application and their description serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0010] Figure 1 is a structural schematic diagram of an antenna provided by an embodiment of the present application;

[0011] Figures 2-3 is a current schematic diagram of a second antenna provided by an embodiment of the present application;

[0012] Figure 4 is a curve schematic diagram of different wavelength modes of a second antenna provided by an embodiment of the present application;

[0013] Figures 5-6 is a current schematic diagram when the first antenna and the second antenna work together provided by an embodiment of the present application;

[0014] Figure 7is a curve diagram of the first antenna and the second antenna when excited to form different wavelength modes according to an embodiment of the present application;

[0015] Figure 8 is a curve diagram of the first antenna and the second antenna when excited to form different wavelength modes in a hand-held state or a FS state according to an embodiment of the present application;

[0016] Figure 9 is a structure diagram of another antenna module according to an embodiment of the present application;

[0017] Figure 10 is a performance curve diagram of the second antenna in different states according to an embodiment of the present application.

[0018] in the figure,

[0019] 210 - first antenna; 211 - first feeding module; 2111 - first feed source; 2112 - first feeding matching circuit;

[0020] 212 - first tuning network; 2121 - first switch unit; 2122 - first matching circuit;

[0021] 213 - first grounding point;

[0022] 214 - third grounding point;

[0023] 215 - first radiator;

[0024] 220 - second antenna; 221 - second feeding module; 2211 - second feed source; 2212 - second feeding matching circuit;

[0025] 222 - second tuning network; 2221 - second switch unit; 2222 - second matching circuit;

[0026] 223 - second grounding point;

[0027] 224 - tuning unit; 2241 - third switch unit; 2242 - third matching circuit;

[0028] 225 - second radiator;

[0029] 230 - break joint. DETAILED DESCRIPTION

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0032] The following is in conjunction with the appendix Figures 1-10 The present application provides a detailed description of an electronic device through specific embodiments and application scenarios.

[0033] like Figure 1 As shown, the electronic device may include: a first antenna 210, a second antenna 220, and a gap 230 disposed on the electronic device, with the first antenna 210 and the second antenna 220 located on opposite sides of the gap 230; the first antenna 210 includes a first radiator 215, and a first feed module 211, a first tuning network 212, and a first grounding point 213 disposed on the first radiator 215. Figure 1 (at point C) and the third grounding point 214, the third grounding point 214 is set at the fracture 230 ( Figure 1 At point D, the first ends of the first feed module 211 and the first tuning network 212 are both connected to the first feed point of the first radiator 215. Figure 1 At point B in the middle, the second end of the first tuning network 212 is grounded, and the first grounding point 213 is located between the first feed point and the third grounding point 214; the second antenna 220 includes a second radiator 225, and a second feed module 221, a second tuning network 222, a second grounding point 223, and a tuning unit 224 disposed on the second radiator 225, and the first end of the tuning unit 224 ( Figure 1 The middle E point is located at the fracture joint 230 and the second grounding point 223. Figure 1 Between point F in the middle, the second feed module 221 is connected to the second feed point of the second radiator 225. Figure 1 The second feed point is located at the second grounding point 223 and the first end of the second tuning network 222 (at point G in the middle). Figure 1The second end of the second tuning network 222 and the second end of the tuning unit 224 are grounded between the first end and the second end of the second tuning network 222.

[0034] In the first case, the first antenna 210 and the second antenna 220 are controlled to work at the same frequency by controlling the first tuning network 212 and the second tuning network 222; in the second case, the working frequency of the first antenna 210 is controlled to be smaller than that of the second antenna 220 by controlling the first tuning network 212 and the second tuning network 222, so that the first antenna 210 and the second antenna 220 work at the same frequency when the human body is close to the electronic device; and the first antenna 210 and the second antenna 220 work at low frequencies.

[0035] In the first case, the first antenna 210 and the second antenna 220 are controlled to work at the same frequency by controlling the first tuning network 212 and the second tuning network 222; in the second case, the working frequency of the first antenna 210 is controlled to be smaller than that of the second antenna 220 by controlling the first tuning network 212 and the second tuning network 222, so that the first antenna 210 and the second antenna 220 work at the same frequency when the human body is close to the electronic device; and the first antenna 210 and the second antenna 220 work at low frequencies.

[0036] That is, the working state of the first antenna 210 and the second antenna 220, such as being in a working state or a non-working state, and the working frequency of the first antenna 210 and the second antenna 220 can be controlled by controlling the position of the switch in the first tuning network 212 and the second tuning network 222. The first case can be that the electronic device is in a FS state or other state away from the human body, at which time the human body has no effect on the performance of the antenna, and the second case can be that the electronic device is in a handheld state or a head-hand state, at which time the human body has an effect on the antenna.

[0037] The electronic device can include the main structure of the antenna on the surface, such as an antenna support, a mainboard, a middle frame, and a battery, a display screen, a camera module, and the like, which are not specifically described in the present application.

[0038] The implementation technology of the antenna can include a metal frame with a gap on the electronic device, laser direct structuring (LDS), and other ways, which are not specifically limited in the present application.

[0039] In the embodiment of the present application, the electronic device comprises a first antenna 210, a second antenna 220 and a break 230, the first antenna 210 and the second antenna 220 are located on two sides of the break 230 respectively, the first antenna 210 comprises a first radiator 215, and a first feeding module 211, a first tuning network 212, a first grounding point 213 and a third grounding point 214 arranged on the first radiator 215, the third grounding point 214 is arranged at the break 230, the first feeding module 211 and a first end of the first tuning network 212 are both connected to a first feeding point of the first radiator 215, a second end of the first tuning network 212 is grounded, the first grounding point 213 is arranged between the first feeding point and the third grounding point 214, the second antenna 220 comprises a second radiator 225, and a second feeding module 221, a second tuning network 222, a second grounding point 223 and a tuning unit 224 arranged on the second radiator 225, a first end of the tuning unit 224 is arranged between the break 230 and the second grounding point 223, the second feeding module 221 is connected to a second feeding point of the second radiator 225, the second feeding point is arranged between the second grounding point 223 and a first end of the second tuning network 222, a second end of the second tuning network 222 and a second end of the tuning unit 224 are both grounded, wherein in a first case, the first antenna 210 and the second antenna 220 are controlled to work at the same frequency by controlling the first tuning network 212 and the second tuning network 222; in a second case, the working frequency of the first antenna 210 is controlled to be smaller than the working frequency of the second antenna 220 by controlling the first tuning network 212 and the second tuning network 222, so that the first antenna 210 and the second antenna 220 work at the same frequency in the case that a human body is close to the electronic device; wherein the first antenna 210 and the second antenna 220 both work at a low frequency. In the embodiment of the present application, the working frequency of the first antenna 210 is controlled by the first tuning network 212 in the first antenna 210, and the working frequency of the second antenna 220 is controlled by the second tuning network 222 in the second antenna 220, so that the antennas can have good performance in different states of the electronic device.

[0040] In a possible implementation of the present application, the first feeding module 211 comprises a first feeding source 2111 and a first feeding matching circuit 2112, the first feeding source 2111 is connected to the first radiator 215 through the first feeding matching circuit 2112; the second feeding module 221 comprises a second feeding source 2211 and a second feeding matching circuit 2212, the second feeding source 2211 is connected to the second radiator 225 through the second feeding matching circuit 2212.

[0041] Wherein, the feeding source is used to provide a feeding signal for the antenna, and the feeding matching circuit is used for impedance matching.

[0042] In a possible implementation of the present application, the first tuning network 212 can include a first switch unit 2121 and a first matching circuit 2122, a first end of the first matching circuit 2122 is connected with the first feeding module 211, a second end of the first matching circuit 2122 is connected with a first end of the first switch unit 2121, and a second end of the first switch unit 2121 is grounded; wherein the first switch unit 2121 includes a plurality of first switches, the first matching circuit 2122 includes a plurality of first matching elements, and the plurality of first switches are connected with the plurality of first matching elements one by one.

[0043] That is, the first switch unit 2121 can be a multiple-input multiple-output switch, which can be composed of a plurality of single-pole single-throw switches or a single-pole multiple-throw switch, the number of the single-pole single-throw switches is the same as the number of the first matching elements in the first matching circuit 2122, and the number of switches that can be switched by the single-pole multiple-throw switch is the same as the number of the first matching elements in the first matching circuit 2122.

[0044] The embodiments of the present application can realize switching between the plurality of first matching elements through the plurality of single-pole single-throw switches to realize that the first antenna 210 covers different frequency bands, wherein the number of the single-pole single-throw switches can be selected according to actual needs and can be selected according to the frequency bands covered by the first antenna 210. The switching between the plurality of first matching elements can also be realized through a single-pole multiple-throw switch, and the number of switches that can be switched by the single-pole multiple-throw switch can be selected according to actual needs to realize that the first antenna 210 covers different frequency bands.

[0045] In a possible implementation of the present application, the second tuning network 222 can include a second switch unit 2221 and a second matching circuit 2222, a first end of the second matching circuit 2222 is arranged on the second radiator 225, a second end of the second matching circuit 2222 is connected with a first end of the second switch unit 2221, and a second end of the second switch unit 2221 is grounded; wherein the second switch unit 2221 includes a plurality of second switches, the second matching circuit 2222 includes a plurality of second matching elements, and the plurality of second switches are connected with the plurality of second matching elements one by one.

[0046] That is, the second switch unit 2221 can be a multiple-input multiple-output switch, which can be composed of a plurality of single-pole single-throw switches or a single-pole multiple-throw switch, the number of the single-pole single-throw switches is the same as the number of the second matching elements in the second matching circuit 2222, and the number of switches that can be switched by the single-pole multiple-throw switch is the same as the number of the second matching elements in the second matching circuit 2222.

[0047] In this embodiment, switching between multiple second matching elements can be achieved using multiple single-pole single-throw switches to enable the second antenna 220 to cover different frequency bands. The number of single-pole single-throw switches can be selected according to actual needs and the frequency bands covered by the second antenna 220. Alternatively, switching between multiple second matching elements can be achieved using a single-pole multi-throw switch. The number of single-pole multi-throw switches that can be switched can be selected according to actual needs to enable the second antenna 220 to cover different frequency bands.

[0048] In one possible embodiment of this application, the tuning unit 224 may include one of a capacitor, an inductor, a capacitor and an inductor connected in parallel, or a capacitor and an inductor connected in series.

[0049] In other words, the tuning unit 224 can be a capacitor, an inductor, a capacitor or inductor connected in parallel, or a capacitor or inductor connected in series, depending on the actual application. This application does not impose any limitations on this.

[0050] In this embodiment, the tuning unit 224 can be any of the devices described above, used to tune the frequency of the second antenna 220.

[0051] like Figures 2-3 As shown, in one possible embodiment of this application, the second antenna 220 includes a first sub-antenna DF and a second sub-antenna FI; wherein, when the first sub-antenna and the second sub-antenna operate in different phases, both the first sub-antenna and the second sub-antenna operate in a first mode, and the current directions formed by the first sub-antenna and the second sub-antenna are opposite; when the first sub-antenna and the second sub-antenna operate in the same phase, the current directions formed by the first sub-antenna and the second sub-antenna are the same, and the second antenna operates in a second mode.

[0052] It is worth noting that the arrows in the diagram indicate the direction of the current.

[0053] The second antenna can have three operating modes: the 1 / 2 wavelength mode corresponding to the entire second antenna, the 1 / 4 wavelength mode corresponding to the first sub-antenna, and the 1 / 4 wavelength mode corresponding to the second sub-antenna.

[0054] The second antenna 220 can be a T antenna. The second antenna 220 can excite three radiation modes. The antenna segments corresponding to the three radiation modes are the first sub-antenna, the second sub-antenna, and the second antenna, which correspond to the DF segment, FI segment, and ID segment in the figure, respectively. The DF segment corresponds to 1 / 4 wavelength, the FI segment corresponds to 1 / 4 wavelength, and the ID segment corresponds to 1 / 2 wavelength. The second antenna 220 can be switched to the low frequency band through the second switching unit 2221 in the second tuning network 222 at H to achieve low frequency coverage of 699MHz to 960MHz.

[0055] When the 1 / 2 wavelength mode resonance of the second antenna 220 is higher than the 1 / 4 wavelength mode resonance of the first antenna 210, the first sub antenna and the second sub antenna have strong current distribution and the current directions at the F point are opposite, corresponding to the floor current distribution, which is equivalent to the 1 / 4 wavelength mode of the two sub antennas being fused together, the radiation aperture is increased, the radiation efficiency of the second antenna 220 excited by the 1 / 4 wavelength mode resonance is improved, and the antenna body current distribution corresponding to the 1 / 2 wavelength mode excited by the second antenna 220 is completely connected and corresponds to the floor current, the floor radiation ability is weakened, and the antenna resonance radiation efficiency is reduced. This is also the method of using 1 / 2 wavelength mode resonance to improve the performance of 1 / 4 wavelength mode for the conventional T structure low frequency antenna, as shown in Figure 4 It can be seen from the figure that the performance of the 13 position is better than that of the 14 position.

[0056] Alternatively, the first antenna 210, the first sub antenna and the break 230 are located on the first side of the electronic device, and the first antenna 210 and the first sub antenna are located on the two sides of the break 230, and the second sub antenna is located on the second side of the electronic device, and the first side is perpendicular to the second side.

[0057] That is, the first antenna 210 and the second antenna 220 are distributed on the two adjacent sides of the electronic device as a whole, wherein the first sub antenna in the first antenna 210 and the second antenna 220 is located on the long side of the electronic device, and the second sub antenna of the second antenna 220 is located on the short side of the electronic device. Through the above arrangement, the antenna as a whole can be suitable for different modes to improve the antenna performance of the electronic device.

[0058] In one possible embodiment of the present application, the first antenna 210 can be an inverted F (IFA) antenna, and the low frequency current excited from the first feed source 2111 in the first feed module 211 flows out to form a 1 / 4 wavelength current distribution at the AC section of the first antenna 210, and then is switched to the low frequency band through the first switch unit 2121 in the first tuning network 212 at the B position to realize low frequency coverage of 699MHz-960MHz. When the first antenna 210 and the second antenna 220 are in the positions provided in the above embodiments in the electronic device, the first sub antenna of the second antenna 220 is equivalent to a parasitic radiation structure of the first antenna 210. When the first antenna 210 excites to form 1 / 4 wavelength resonance and the second antenna 220 also excites to form 1 / 4 wavelength resonance, the current distribution of the first antenna 210 body and the first sub antenna of the second antenna 220 at the break 230, i.e. at the D position, is opposite in direction, as shown in Figure 5As shown, the radiation patterns of the two antennas are in phase, and the radiation efficiency of the first antenna 210 decreases. When the first antenna 210 is excited to form a 1 / 4 wavelength resonance and the second antenna 220 is excited to form a 1 / 2 wavelength resonance, the current distribution of the first antenna 210 is in the same direction as the current distribution of the first sub-antenna of the second antenna 220 at the position of the break 230, i.e., D, as shown in FIG. 2B. Figure 6 As shown, the radiation patterns of the two antennas are in phase, and the radiation efficiency of the first antenna 210 increases. The arrow direction in the figure is the direction of the current.

[0059] Therefore, when the first antenna 210 and the second antenna 220 work simultaneously, the antenna efficiency of the first antenna 210 can be improved by tuning the second antenna 220 to form a 1 / 2 wavelength mode and the first antenna 210 to form a 1 / 4 wavelength mode at the same frequency, as shown in FIG. 2D. Figure 7 As shown, the radiation patterns of the two antennas are in phase, and the radiation efficiency of the first antenna 210 increases. The arrow direction in the figure is the direction of the current.

[0060] In a possible implementation of the present application, when the electronic device works in a handheld or head-hand mode, the strong antenna current is close to the human body, which can cause the antenna efficiency to be absorbed by the human body, resulting in a large loss (a large amount of tangential magnetic field at the strong current point of the antenna can enter the human body, causing the antenna radiation efficiency to decrease), and when the strong electric field point of the antenna is close to the human body, the human body as a near conductor medium can be coupled with the antenna body, causing the antenna to be biased to a low frequency. When the second antenna 220 is excited to form a 1 / 2 wavelength mode, the electric field at the position of the break 230, i.e., D, is strong, and the distribution of the first sub-antenna of the second antenna 220 at the position E is on the side, which can be held by the hand, which causes the 1 / 2 wavelength resonance mode excited by the second antenna 220 to be biased low, and the first antenna 210 is not easy to be held by the hand because the break is distributed on the upper part of the whole machine in the situation of answering the phone or operating the electronic device, and the resonance frequency bias of the first antenna 210 is not large, and the performance of the antenna decreases less in the handheld or head-hand mode.

[0061] Therefore, when the electronic device is in a handheld or head-hand state, the 1 / 2 wavelength resonance mode excited by the second antenna 220 is higher than the working frequency band of the first antenna 210, and the second antenna 220 can be biased to the working frequency band of the first antenna 210 to a low frequency in the hand-held scenario, which can improve the performance of the 1 / 4 wavelength mode excited by the first antenna 210 in the handheld or head-hand mode, as shown in FIG. 2D.Figure 8 As shown. ant1-System Rad.Efficiency_ant2 excitation 0.5λ resonant mode - handheld state, ant1-System Rad.Efficiency_ant2 excitation 0.25λ resonant mode - FS state, ant1-SystemTot.Efficiency_ant2 excitation 0.5λ resonant mode - handheld state, ant1-System Tot.Efficiency_ant2 excitation 0.25λ resonant mode - FS state, respectively refer to the curves of the first antenna 210 and the second antenna 220 when excitation forms different wavelength modes in the handheld state or FS state.

[0062] like Figure 9 As shown, in one possible embodiment of this application, the tuning unit 224 may include: a third switching unit 2241 and a third matching circuit 2242. The first end of the third matching circuit 2242 is disposed on the second radiator 225, and the second end of the third matching circuit 2242 is connected to the first end of the third switching unit 2241. The second end of the third switching unit 2241 is grounded. The third switching unit 2241 includes a plurality of third switches, and the third matching circuit 2242 includes a plurality of third matching elements. The plurality of third switches and the plurality of third matching elements are connected one-to-one.

[0063] Due to the narrow bandwidth of low frequencies, a switch is typically added to the first low-frequency antenna 210 to cut the frequency offset and cover the entire low-frequency band. To improve the handheld / headheld performance of the first antenna 210 across the entire low-frequency band from 699MHz to 960MHz, based on the above embodiment, a combination of a switch unit and a matching circuit is also used at the tuning unit 224 of the first sub-antenna of the second antenna 220. This allows the third switch unit 2241 to switch to different matching elements to tune the frequency offset of the second antenna 220 operating in 1 / 2 wavelength mode. This ensures that the 1 / 2 wavelength mode resonance excited by the second antenna 220 is higher than the 1 / 4 wavelength mode resonance of the first antenna 210 in each operating frequency band, and that it is lower than the operating frequency band of the first antenna 210 in the handheld state, thereby improving the handheld / headheld antenna performance of the first antenna 210 in different frequency bands.

[0064] Since the 1 / 2 wavelength mode resonance of the second antenna 220 is to tune to improve the 1 / 4 wavelength mode performance of the first antenna 210, there is a problem that when the 1 / 2 wavelength resonance frequency of the second antenna 220 is too close to the 1 / 4 wavelength resonance frequency at which the second antenna 220 works, the 1 / 2 wavelength mode resonance of the second antenna 220 is poor in radiation efficiency, and if it falls within the in-band of the working frequency range of the second antenna 220, it will affect the antenna performance of the FS state of the second antenna 220, so there will be a problem that when tuning the second antenna 220 to improve the head-hand performance of the first antenna 210, the performance of the FS state of the second antenna 220 will be sacrificed.

[0065] Therefore, the advanced open loop (AOL) function of the electronic device can be combined to make the first antenna 210 adopt different antenna logic in the FS state and the handheld / head-hand state, so as to realize the performance of the FS state of the first antenna 210 and the handheld / head-hand state of the second antenna 220.

[0066] Specifically, the electronic device can include a control unit for controlling the conduction or turn-off of the first switch in the first tuning network 212, the second switch in the second tuning network 222, and the third switch in the tuning unit 224.

[0067] The conduction or turn-off of the third switch is controlled by the control unit to control the simultaneous work of the first antenna 210 and the second antenna 220, in the first case, the working frequency of the second antenna 220 unit is greater than that of the first antenna 210, and in the second case, the working frequencies of the first antenna 210 and the second antenna 220 are the same.

[0068] In order to improve the head-hand performance of the low-frequency antenna first antenna 210 at the low-frequency frequency band, the embodiments of the present application take the first antenna 210 at B5 (850MHz) and B8 (900MHz) frequency bands as an example.

[0069] To improve the head hand performance of the low frequency antenna first antenna 210 working in the B5 frequency band, the 1 / 2 wavelength mode resonance of the second antenna 220 needs to be around 870MHz, which has an impact on the performance of B5 and B8 of the second antenna 220 in the FS state, so for the B5 handheld / head hand state working scene, the third switch unit 2241 adopts logic 1, that is, the third switch is switched to be connected with the first third matching element, at this time the second antenna 220 is excited to form a 1 / 2 wavelength mode, and the handheld / head hand performance of the first antenna 210 is good; for the B5 FS state working scene, the third switch unit 2241 adopts logic 2, that is, the third switch is switched to be connected with the second third matching element; for the B8 FS state working scene, the third switch unit 2241 adopts logic 3, that is, the third switch is switched to be connected with the third third matching element, so that the second antenna 220 can be excited to form a 1 / 4 wavelength mode in the B5 and B8 frequency bands, so that the B5 / B8 FS antenna performance of the second antenna 220 can also be optimal, and the handheld / head hand and FS antenna performance of other frequency bands can also be optimized by using different logics of the third switch unit 2241. Therefore, in combination with the third switch unit 2241 and the AOL function of the electronic device, different logics can be used for different scenes to realize the improvement of the handheld / head hand performance of the first antenna 210 and the consideration of the FS performance of the second antenna 220. As shown in Figure 10 the performance curves of the antenna of the second antenna 220 in different states. Figure 10 S2,2-B5 handheld_head hand state-switch logic 1, S2,2-B5 FS state-switch logic 2, S2,2-B5 FS state-switch logic 3, System Tot.Efficiency-B5 handheld_head hand state-switch logic 1, System Tot.Efficiency-B5 FS state-switch logic 2, System Tot.Efficiency-B5 FS state-switch logic 3, are respectively the wavelength curves formed by the first antenna 210 and the second antenna 220 in the handheld state or the FS state and different switch logics.

[0070] In the embodiment of the application, by increasing the switch tuning network on the lower low frequency antenna, that is, the first sub antenna of the second antenna 220, the position of the 1 / 2 wavelength mode resonance of the second antenna 220 can be tuned to improve the head hand performance of the first antenna 210 in different frequency bands, and in combination with the AOL tuning function supported by the electronic device, the FS of the second antenna 220 and the handheld / head hand performance of the first antenna 210 can be considered.

[0071] The electronic device in the application can be a full-screen mobile phone, a tablet computer and the like, and specifically, the application does not make detailed introduction, and the actual situation is for reference.

[0072] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the method and apparatus of the present application can be carried out by more than one process, method, article, or apparatus either simultaneously, concurrently, or with intervening action that are carried out at the same time, either in a simultaneous fashion or in a fashion that is interleaved in time. For example, the described methods can be performed in a different order from that described, and / or various steps can be combined or omitted, and / or additional steps can be added, without departing from the scope of the present application. Also, features described with respect to certain examples can be combined in other examples.

[0073] From the above description of the embodiments, it is apparent that the above-described method of the embodiments can be realized by means of software and general-purpose hardware platforms, and of course, can also be realized by hardware, but in many cases, the former is a better embodiment. Based on such an understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as a ROM / RAM, a magnetic disk, or an optical disk) and includes a number of instructions for causing a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the methods described in the various embodiments of the present application.

[0074] The embodiments of the present application are described above with reference to the accompanying drawings, but the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are merely illustrative, rather than limiting, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims, and all of them belong to the protection scope of the present application.

Claims

1. An electronic device, comprising: The application relates to an electronic device, comprising: a first antenna, a second antenna and a break on the electronic device, the first antenna and the second antenna being located on two sides of the break respectively; the first antenna comprises a first radiator, a first feeding module, a first tuning network, a first grounding point and a third grounding point, the third grounding point is arranged at the break, the first feeding module and the first end of the first tuning network are connected to a first feeding point of the first radiator, the second end of the first tuning network is grounded, and the first grounding point is arranged between the first feeding point and the third grounding point; the second antenna comprises a second radiator, a second feeding module, a second tuning network, a second grounding point and a tuning unit, the first end of the tuning unit is arranged between the break and the second grounding point, the second feeding module is connected to a second feeding point of the second radiator, the second feeding point is arranged between the second grounding point and the first end of the second tuning network, and the second end of the second tuning network and the second end of the tuning unit are both grounded; in a first case, the first antenna and the second antenna are controlled to work at the same frequency by controlling the first tuning network and the second tuning network; in a second case, the working frequency of the first antenna is controlled to be smaller than the working frequency of the second antenna by controlling the first tuning network and the second tuning network, so that the first antenna and the second antenna work at the same frequency when a human body is close to the electronic device; the first antenna and the second antenna both work at low frequency, the second antenna excites a 1 / 2 wavelength mode, and the first antenna excites a 1 / 4 wavelength mode.

2. The electronic device of claim 1, wherein, The first feeding module comprises a first feeding source and a first feeding matching circuit, and the first feeding source is connected to the first radiator through the first feeding matching circuit; the second feeding module comprises a second feeding source and a second feeding matching circuit, and the second feeding source is connected to the second radiator through the second feeding matching circuit.

3. The electronic device of claim 1, wherein, The first tuning network comprises a first switch unit and a first matching circuit, the first end of the first matching circuit is connected to the first feeding module, the second end of the first matching circuit is connected to the first end of the first switch unit, and the second end of the first switch unit is grounded; the first switch unit comprises a plurality of first switches, the first matching circuit comprises a plurality of first matching elements, and the plurality of first switches are connected to the plurality of first matching elements one by one.

4. The electronic device of claim 1, wherein, The second tuning network comprises a second switch unit and a second matching circuit, the first end of the second matching circuit is arranged on the second radiator, the second end of the second matching circuit is connected to the first end of the second switch unit, and the second end of the second switch unit is grounded; the second switch unit comprises a plurality of second switches, the second matching circuit comprises a plurality of second matching elements, and the plurality of second switches are connected to the plurality of second matching elements one by one.

5. The electronic device of claim 1, wherein, The tuning unit comprises one of a capacitor, an inductor, a capacitor and an inductor in parallel, a capacitor and an inductor in series.

6. The electronic device of claim 1, wherein, The second antenna comprises a first sub antenna and a second sub antenna. In a case where the first sub antenna and the second sub antenna operate at different phases, the first sub antenna and the second sub antenna operate in a first mode, and the current directions formed by the first sub antenna and the second sub antenna are opposite; in a case where the first sub antenna and the second sub antenna operate at the same phase, the current directions formed by the first sub antenna and the second sub antenna are the same, and the second antenna operates in a second mode.

7. The electronic device of claim 6, wherein, The first antenna, the first sub antenna and the break are located on a first side of the electronic device, and the first antenna and the first sub antenna are located on two sides of the break respectively, the second sub antenna is located on a second side of the electronic device, and the first side is perpendicular to the second side.

8. The electronic device of claim 6, wherein, The operating mode of the second antenna further comprises a 1 / 4 wavelength mode corresponding to the first sub antenna or a 1 / 4 wavelength mode corresponding to the second sub antenna.

9. The electronic device of claim 1, wherein, The tuning unit comprises a third switch unit and a third matching circuit, a first end of the third matching circuit is arranged on the second radiator, a second end of the third matching circuit is connected with a first end of the third switch unit, and a second end of the third switch unit is grounded. The third switch unit comprises a plurality of third switches, and the third matching circuit comprises a plurality of third matching elements, the plurality of third switches are connected with the plurality of third matching elements one by one.

10. The electronic device of claim 9, wherein, The electronic device comprises a control unit, and the control unit is used for controlling the conduction or non-conduction of the first switch in the first tuning network, the second switch in the second tuning network and the third switch in the tuning unit.

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