Electronic device and control method thereof

Abstract

The embodiment of the present application discloses an electronic device and a control method thereof, relates to the technical field of electronic devices, and can improve the utilization rate of the limited space layout antenna in the electronic device. The electronic device of the present application comprises a metal frame, a target component, a first antenna and a second antenna, the target component is fixed to the carrier of the metal frame; the first antenna at least comprises a target metal segment of the metal frame; the first antenna receives or emits a radiation signal of a first frequency band at least through the target metal segment of the metal frame; the second antenna is a slot antenna, a gap between the target component and the target metal segment forms a slot of the slot antenna; the second antenna comprises the slot and part of the metal of the target metal segment and part of the metal of the target component which form the slot; the second antenna receives or emits a radiation signal of a second frequency band through the part of the metal of the target metal segment and the part of the metal of the target component.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of electronic devices, and in particular to an electronic device and a control method thereof. BACKGROUND

[0002] Currently, in order to realize a communication function, an electronic device needs to be built-in with an antenna structure to receive or send signals. For example, a mobile phone, and a related antenna design basically uses a metal frame antenna or a support antenna.

[0003] With the development of communication technology, data information needs to be transmitted more quickly, and multi input multi output (MIMO) antenna technology is applied more and more widely on electronic devices. The number of antennas is multiplied, which needs to occupy more space, and the increase of functions of electronic devices is accompanied by an increase of devices, which further occupies the antenna space. Therefore, how to arrange more antennas in the limited space inside the electronic device is a major problem at present. SUMMARY

[0004] Embodiments of the present application provide an electronic device and a control method thereof, which can improve the utilization rate of antennas arranged in the limited space inside the electronic device.

[0005] In a first aspect, an electronic device is provided, comprising a metal frame body, a target component, a first antenna and a second antenna, wherein the target component is fixed to a carrier of the metal frame body; the first antenna at least comprises a target metal segment of the metal frame body; the first antenna receives or emits a first frequency band of radiation signals at least through the target metal segment of the metal frame body; the second antenna is a slot antenna, a gap between the target component and the target metal segment forms a slot of the slot antenna; the second antenna comprises the slot and part of the metal of the target metal segment and part of the metal of the target component; the second antenna receives or emits a second frequency band of radiation signals through the part of the metal of the target metal segment and the part of the metal of the target component, wherein the working frequency bands of the first frequency band of radiation signals and the second frequency band of radiation signals have different intervals.

[0006] In a possible implementation manner of the present application, the first antenna further comprises an isolation metal segment, the isolation metal segment is a metal segment isolated by two isolation openings on the metal frame body, and the target metal segment is isolated from the isolation metal segment through the isolation openings; wherein the isolation metal segment serves as a main radiator of the first antenna, and the target metal segment serves as a parasitic branch of the first antenna.

[0007] In a possible implementation manner of the present application, the opening of the slot shares the target metal segment with a target isolation opening of the two isolation openings.

[0008] In a possible implementation of the present application, the target metal segment is bent and located at a corner of the metal frame.

[0009] In a possible implementation of the present application, the target component is connected to the target metal segment at the bottom of the gap, and the feeding structure of the second antenna is arranged close to the bottom of the gap.

[0010] In a possible implementation of the present application, the feeding structure of the second antenna is located at one-tenth of the length of the gap, and the circumference of the gap structure is one-half of the wavelength of the resonant frequency of the second antenna.

[0011] In a possible implementation of the present application, the feeding point of the first antenna is arranged on the isolation metal segment and away from the feeding structure of the second antenna.

[0012] In a possible implementation of the present application, the second antenna further includes a filter circuit connected behind the feeding circuit of the second antenna, for filtering the resonant frequency of the second antenna that coincides with the first antenna.

[0013] In a possible implementation of the present application, the target component is a horn metal plate or a screen metal plate of the electronic device.

[0014] In a second aspect, the embodiments of the present application provide a control method for controlling the electronic device of the first aspect, and the method includes:

[0015] supplying power to the target metal segment based on the control signal, so that the first antenna receives or transmits the radiation signal of the first frequency band through the target metal segment of the metal frame;

[0016] supplying power to the partial metal of the target metal segment forming the gap and the partial metal of the target component based on the control signal, so that the second antenna receives or transmits the radiation signal of the second frequency band through the partial metal of the target metal segment and the partial metal of the target component;

[0017] The control signal is generated based on the running logic of the electronic device.

[0018] The electronic device and the control method thereof provided by the embodiments of the present application, the first antenna at least includes the target metal segment of the metal frame; the second antenna is a gap antenna, including a gap and partial metal of the target metal segment forming the gap and partial metal of the target component; the first antenna at least receives or transmits the radiation signal of the first frequency band through the target metal segment of the metal frame; the second antenna receives or transmits the radiation signal of the second frequency band through the partial metal of the target metal segment and the partial metal of the target component; and the working frequency bands of the radiation signal of the first frequency band and the radiation signal of the second frequency band have different intervals. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a basic structure schematic diagram of a slot antenna;

[0020] Figure 2 is a schematic diagram of an electronic device provided by an embodiment of the present application;

[0021] Figure 3 is a structure schematic diagram of a first antenna of an electronic device provided by an embodiment of the present application;

[0022] Figure 4 is a structure schematic diagram of an embodiment one of a second antenna of an electronic device provided by an embodiment of the present application;

[0023] Figure 5 is a partial enlarged schematic diagram of Figure 4 ;

[0024] Figure 6 is a frequency comparison simulation diagram before and after a first antenna plus a second antenna of an embodiment one of an electronic device provided by an embodiment of the present application;

[0025] Figure 7 is an efficiency comparison simulation diagram before and after a first antenna plus a second antenna of an embodiment one of an electronic device provided by an embodiment of the present application;

[0026] Figure 8 is a frequency simulation diagram of a second antenna of an embodiment one of an electronic device provided by an embodiment of the present application;

[0027] Figure 9 is an efficiency simulation diagram of a second antenna of an embodiment one of an electronic device provided by an embodiment of the present application;

[0028] Figure 10 is a frequency simulation diagram before and after a second antenna plus a filter circuit of an embodiment one of an electronic device provided by an embodiment of the present application;

[0029] Figure 11 is a schematic diagram of a filter circuit of an electronic device provided by an embodiment of the present application;

[0030] Figure 12 is a structure schematic diagram of an embodiment two of a second antenna of an electronic device provided by an embodiment of the present application;

[0031] Figure 13 is a partial enlarged schematic diagram of Figure 12 ;

[0032] Figure 14 is a frequency comparison simulation diagram before and after a first antenna plus a second antenna of an embodiment two of an electronic device provided by an embodiment of the present application;

[0033] Figure 15The efficiency comparison simulation diagram of the first antenna and the second antenna of the second embodiment of the electronic device provided in the embodiments of the present application;

[0034] Figure 16 The frequency simulation diagram of the second antenna of the second embodiment of the electronic device provided in the embodiments of the present application;

[0035] Figure 17 The efficiency simulation diagram of the second antenna of the second embodiment of the electronic device provided in the embodiments of the present application;

[0036] Figure 18 The frequency simulation diagram of the second antenna and the filter circuit of the second embodiment of the electronic device provided in the embodiments of the present application.

[0037] Reference signs:

[0038] 1-metal frame; 11-target metal segment; 12-isolation opening; 2-target component; 3-first antenna; 31-isolation metal segment; 32-feeding point; 4-second antenna; 41-feeding structure. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below in combination with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0040] In the embodiments of the present application, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0041] In addition, in the embodiments of the present application, the orientation terms such as "up", "down", "left" and "right" are defined with respect to the orientation of the components shown in the drawings, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components placed in the drawings.

[0042] In the embodiments of the present application, unless otherwise specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium.

[0043] In the embodiments of the present application, the terms "comprising", "containing" or any other similar words are intended to encompass non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device. Without more limitations, the element defined by the phrase "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0044] In the embodiments of the present application, the words such as "exemplary" or "for example" are used to represent an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words such as "exemplary" or "for example" are intended to present the relevant concept in a specific manner.

[0045] The embodiments of the present application provide an electronic device, which is provided with an antenna for communication. The electronic device can be a notebook computer, a tablet computer, a mobile phone or the like.

[0046] Taking the electronic device as a mobile phone, the antenna of the electronic device according to the embodiments of the present application is an internal antenna, which can be a metal frame antenna, that is, a shell is manufactured by a metal plastic integrated forming process, and the antenna is constructed by an exposed metal frame. The metal frame antenna is generally arranged in the top and bottom two areas with the best clearance environment of the mobile phone.

[0047] The electronic device according to the embodiments of the present application can realize the functions of required communication frequency bands by the internal antenna. For example, the internal antenna can realize the requirements of 4G (4th Generation), 5G (5th Generation), WIFI (WIreless-Fidelity), GPS (Global Positioning System) and the like.

[0048] In order to increase the communication frequency bands of the antenna, the electronic device according to the embodiments of the present application increases the structure of a slot antenna.

[0049] Please refer to Figure 1 , which shows the basic structure principle of a slot antenna. The slot antenna is an antenna formed by opening a slot in a conductor surface. The typical slot shape is a long strip, and the length is about half a wavelength. The slot can be fed by a transmission line across its narrow side, or by a waveguide or resonant cavity. When the slot antenna has current passing through it, an RF electromagnetic field is excited on the slot and radiates electromagnetic waves into space, realizing communication.

[0050] The slit antenna of the electronic device in the embodiments of the present application is formed by multiplexing at least part of components with the metal frame antenna, and thus the utilization rate of the limited space layout antenna inside the electronic device can be improved.

[0051] Specifically, referring to Figure 2 , the electronic device in the embodiments of the present application comprises a metal frame 1, a target component 2, a first antenna 3 and a second antenna 4, wherein the target component 2 is fixed to a carrier of the metal frame 1; the first antenna 3 at least comprises a target metal segment 11 of the metal frame 1; the first antenna 3 receives or emits a radiation signal of a first frequency band at least through the target metal segment 11 of the metal frame 1.

[0052] The second antenna 4 is a slit antenna, and a gap between the target component 2 and the target metal segment 11 forms a slit of the slit antenna; the second antenna 4 comprises the slit and part of the metal of the target metal segment 11 and part of the metal of the target component 2; the second antenna 4 receives or emits a radiation signal of a second frequency band through the part of the metal of the target metal segment 11 and the part of the metal of the target component 2, wherein the working frequency bands of the radiation signal of the first frequency band and the radiation signal of the second frequency band have different intervals.

[0053] The electronic device provided in the embodiments of the present application comprises the target metal segment 11 of the metal frame 1 in the first antenna 3; the second antenna 4 is a slit antenna, comprising the slit and part of the metal of the target metal segment 11 and part of the metal of the target component 2; the first antenna 3 receives or emits the radiation signal of the first frequency band at least through the target metal segment 11 of the metal frame 1; the second antenna 4 receives or emits the radiation signal of the second frequency band through the part of the metal of the target metal segment 11 and the part of the metal of the target component 2; and the working frequency bands of the radiation signal of the first frequency band and the radiation signal of the second frequency band have different intervals. In this way, at least part of the metal of the target metal segment 11 belongs to the first antenna 3 and also belongs to the second antenna 4, that is, the target metal segment 11 is multiplexed; at the same time, since the slit constituting the second antenna 4 comprises part of the metal of the target component 2, the target component 2 can be an inherent component inside the electronic device, and thus the number of components for antenna layout is saved, the space required for antenna layout is reduced, and the utilization rate of the limited space layout antenna inside the electronic device can be improved.

[0054] It can be understood that Figure 2 only some components of the electronic device are schematically shown, and the actual shape, actual size, actual position and actual structure of these components are not limited by Figure 2 .

[0055] The antenna of the electronic device is arranged at the bottom position of the frame, referring to Figure 2 and Figure 3The first antenna 3 can further include an isolated metal segment 31, which is a metal segment isolated on the metal frame 1 by two isolation openings 12. The target metal segment 11 is isolated from the isolated metal segment 31 by the isolation openings 12. The isolated metal segment 31 serves as a main radiator of the first antenna 3, and the target metal segment 11 serves as a parasitic branch of the first antenna 3.

[0056] The first antenna 3 of the electronic device can have various specific arrangement modes. For example, in some embodiments, referring to Figure 2 and Figure 3 The main radiator (the isolated metal segment 31) of the first antenna 3 is located at the bottom edge frame of the electronic device.

[0057] In some other embodiments, the main radiator (the isolated metal segment 31) of the first antenna 3 is located at the top edge frame of the metal frame 1 of the electronic device.

[0058] In some other embodiments, the main radiator (the isolated metal segment 31) of the first antenna 3 extends to the side edge frame of the metal frame 1 of the electronic device.

[0059] Referring to Figure 2 and Figure 3 The parasitic branch (the target metal segment 11) of the first antenna 3 is located at the corner of the bottom edge frame of the metal frame 1 of the electronic device.

[0060] In some other embodiments, the parasitic branch (the target metal segment 11) of the first antenna 3 is located at the corner of the top edge frame of the metal frame 1 of the electronic device.

[0061] In some other embodiments, the parasitic branch (the target metal segment 11) of the first antenna 3 is located at the bottom edge frame of the metal frame 1 of the electronic device.

[0062] In some other embodiments, the parasitic branch (the target metal segment 11) of the first antenna 3 is located at the top edge frame of the metal frame 1 of the electronic device.

[0063] It can be understood that the specific position of the first antenna 3 can be determined according to the actual needs of the electronic device. The first antenna 3 can be formed at any position of the metal frame 1. The main radiator (the isolated metal segment 31) and the parasitic branch (the target metal segment 11) of the first antenna 3 in the above embodiments can be combined and replaced in any manner to form the first antenna 3, while meeting other arrangement conditions of the antenna.

[0064] In addition, when the parasitic branch (the target metal segment 11) of the first antenna 3 is located at the corner of the bottom edge frame or the corner of the top edge frame of the metal frame 1 of the electronic device, in order to adapt to the shape and structure of the metal frame 1 of the electronic device, referring to Figure 2 and Figure 3In some embodiments, the parasitic branch (target metal segment 11) is bent and arranged at a corner of the metal frame 1.

[0065] For example, refer to Figure 2 and Figure 3 , which show an implementation of the first antenna 3 according to an embodiment of the present application. The main radiator (isolated metal segment 31) of the first antenna 3 is located at the bottom bezel of the metal frame 1 of the electronic device, and the parasitic branch (target metal segment 11) of the first antenna 3 is located at a corner of the top bezel of the metal frame 1 of the electronic device and is bent and arranged. The isolated metal segment 31 is the part of the metal frame 1 between the two isolated openings 12, the target metal segment 11 is the bent part of the metal frame 1 arranged on the other side of one of the isolated openings 12 of the isolated metal segment 31, located at one of the corners of the bottom of the metal frame 1, and is approximately crescent-shaped.

[0066] The first antenna 3 can be in the form of a PIFA antenna, a monopole antenna, etc., and can have a parasitic branch.

[0067] In some other embodiments, the parasitic branch (target metal segment 11) of the first antenna 3 includes two, which are located at two corners of the bottom of the metal frame 1.

[0068] For example, refer to Figure 2 and Figure 3 , the first antenna 3 is connected to the power supply and controller inside the electronic device through the feed point 32 arranged at the isolated metal segment 31 to control the operation of the first antenna 3.

[0069] In the electronic device according to an embodiment of the present application, at least part of the first antenna 3 can be multiplexed into the second antenna 4, so that the second antenna 4 forms a slot antenna. The second antenna 4 includes at least part of the first antenna 3 and other conductors, and the at least part of the first antenna 3 and the other conductors form a slot of the slot antenna.

[0070] In some embodiments, the second antenna 4 includes at least part of the main radiator (isolated metal segment 31) of the first antenna 3 and other conductors, and the at least part of the main radiator (isolated metal segment 31) of the first antenna 3 and the other conductors form a slot of the slot antenna.

[0071] In some embodiments, the second antenna 4 includes at least part of the parasitic branch (target metal segment 11) of the first antenna 3 and other conductors, and the at least part of the parasitic branch (target metal segment 11) of the first antenna 3 and the other conductors form a slot of the slot antenna.

[0072] For example, refer to Figure 1The second antenna 4 includes the parasitic branch (target metal segment 11) of the first antenna 3 and other conductive bodies, which form the gap of the gap antenna.

[0073] The other conductive bodies in the second antenna 4 can be designed based on the gap of the gap antenna, or can be adaptively designed by directly using the original metal parts in the electronic device. Compared with the former, the latter has less changes in the electronic device, is convenient for design and production, and further saves space and cost.

[0074] The target component 2 in the second antenna 4 can be any target component 2 that can form the gap of the gap antenna in cooperation with the first antenna 3. For example, the target component 2 can be a screen metal plate and a loudspeaker metal plate.

[0075] Embodiment One

[0076] Please refer to Figure 4 and Figure 5 In the electronic device of the embodiment, the target component 2 is a screen metal plate, and the second antenna 4 includes at least a part of the parasitic branch (target metal segment 11) of the first antenna 3 arranged at the corner of the bottom frame of the electronic device, and at least a part of the screen metal plate of the electronic device.

[0077] In some schemes of the embodiment, a gap of the gap antenna is formed between a part of the target metal segment 11 and a part of the screen metal plate, to constitute the second antenna 4.

[0078] In another scheme of the embodiment, please refer to Figure 4 and Figure 5 A gap of the gap antenna is formed between the entire target metal segment 11 and a part of the screen metal plate, to constitute the second antenna 4.

[0079] In some schemes, please refer to Figure 4 and Figure 5 The opening of the gap shares the target metal segment 11 with a target isolation opening 12 of the two isolation openings 12. The target isolation opening 12 is used to isolate the target metal segment 11 and the isolation metal segment 31. The opening of the gap of the second antenna 4 is arranged together with the target isolation opening 12.

[0080] In another scheme, the opening of the gap of the second antenna 4 is not arranged together with the target isolation opening 12, and the length and width of the gap of the second antenna 4 can be appropriately adjusted, as long as the circumference of the gap is half of the wavelength of the first resonant frequency.

[0081] In some schemes, the second antenna 4 is a WIFI 5G / 6E antenna, and the frequency range is 5.15GHz-7.15GHz. The slot length is 15mm, and the width is 1mm.

[0082] Please refer to Figure 2 , Figure 4 and Figure 5 , the target component 2 is connected to the target metal segment 11 at the bottom of the slot, and the feed structure 41 of the second antenna 4 is arranged close to the bottom of the slot. In some schemes, the feed structure 41 of the second antenna 4 is located at one-tenth of the slot length of the second antenna 4.

[0083] The feed structure 41 of the second antenna 4 and the feed point 32 of the first antenna 3 are not required to be arranged in a special way, and can be arranged flexibly based on the internal space of the electronic device. For example, please refer to Figure 2 , Figure 4 and Figure 5 , the feed point 32 of the first antenna 3 is arranged on the isolation metal segment 31, and is arranged away from the feed structure 41 of the second antenna 4. In this way, the layout of the first antenna 3 and the second antenna 4.

[0084] Please refer to Figure 6 , after the second antenna 4 is arranged in the electronic device of the embodiment, the S11 of the first antenna 3 at low frequency and medium frequency changes little, and the S11 at high frequency is high.

[0085] Please refer to Figure 7 , after the second antenna 4 is arranged in the electronic device of the embodiment, the efficiency of the first antenna 3 at low frequency and medium frequency changes little, and the efficiency at high frequency only shifts a little from the peak value, but the peak efficiency changes little.

[0086] Please refer to Figure 8 , after the second antenna 4 is arranged in the electronic device of the embodiment, the S11 of the second antenna 4 is as shown in the figure.

[0087] Please refer to Figure 9 , after the second antenna 4 is arranged in the electronic device of the embodiment, the efficiency of WIFI 5G (5.15GHz-5.85GHz) is above -8dB, and the efficiency of WIFI 6E (5.95GHz-7.15GHz) is above -9dB.

[0088] Please refer to Figure 10 , after the second antenna 4 is arranged in the electronic device of the embodiment, the isolation S12 of the first antenna 3 and the second antenna 4 is very poor near 2.7GHz, only -3dB. After adding a filter circuit on the feed path of the second antenna 4, the isolation can be greatly improved, and the S12 is below -12dB.

[0089] Therefore, in order to solve the problem of poor isolation between the first antenna 3 and the second antenna 4, in some schemes, the second antenna 4 further comprises a filter circuit connected to the rear of the feed line of the second antenna 4, for filtering the resonant frequency of the second antenna 4 coinciding with the first antenna 3.

[0090] Please refer to Figure 11 , which shows a specific implementation of the filter circuit of the second antenna 4. In this implementation, the inductance value of the filter circuit of the second antenna 4 is 1.0nH, and the capacitance value is 3.8pF. Both values can be adjusted appropriately to make the second antenna 4 meet the isolation requirement.

[0091] Embodiment Two

[0092] Please refer to Figure 12 and Figure 13 , the second antenna 4 in the electronic device of the present embodiment includes at least part of the parasitic branch (target metal segment 11) of the first antenna 3 arranged at the corner of the bottom frame of the electronic device, and at least part of the speaker metal plate of the electronic device.

[0093] In some schemes of the present embodiment, a gap between part of the target metal segment 11 and part of the speaker metal plate forms a gap of a gap antenna, to constitute the second antenna 4.

[0094] In another scheme of the present embodiment, please refer to Figure 12 and Figure 13 , a gap between the entire target metal segment 11 and part of the speaker metal plate forms a gap of a gap antenna, to constitute the second antenna 4.

[0095] In some schemes, please refer to Figure 12 and Figure 13 , the opening of the gap shares the target metal segment 11 with a target isolation opening 12 of the two isolation openings 12. The target isolation opening 12 is included in the two isolation openings 12 and is used to isolate the target metal segment 11 and the isolation metal segment 31. The opening of the gap of the second antenna 4 is arranged together with the target isolation opening 12.

[0096] In another scheme, the opening of the gap of the second antenna 4 is not arranged together with the target isolation opening 12, and the length and width of the gap of the second antenna 4 can be adjusted appropriately as long as the circumference of the gap is half of the wavelength of the first resonant frequency.

[0097] In some schemes, the second antenna 4 is a WIFI 5G / 6E antenna with a frequency range of 5.15GHz-7.15GHz. The length of the gap is 1.5mm, and the width is 1-1.5mm.

[0098] Please refer to Figure 12 andFigure 13 The target component 2 is connected to the target metal segment 11 at the bottom of the gap, and the feed structure 41 of the second antenna 4 is arranged close to the bottom of the gap. In some embodiments, for example, the feed structure 41 of the second antenna 4 is located at one-tenth of the length of the gap of the second antenna 4.

[0099] The feed structure 41 of the second antenna 4 and the feed point 32 of the first antenna 3 are not subject to special requirements and can be arranged flexibly based on the internal space of the electronic device. For example, refer to Figure 12 and Figure 13 The feed point 32 of the first antenna 3 is arranged on the isolation metal segment 31 and is arranged away from the feed structure 41 of the second antenna 4. In this way, the layout of the first antenna 3 and the second antenna 4.

[0100] For example, refer to Figure 14 After the electronic device of the embodiment is provided with the second antenna 4, the S11 of the first antenna 3 at low and medium frequencies changes little, and the S11 at high frequencies is slightly high.

[0101] For example, refer to Figure 15 After the electronic device of the embodiment is provided with the second antenna 4, the efficiency of the first antenna 3 at low and medium frequencies changes little, and the efficiency at high frequencies only shifts a little from the peak value, but the peak efficiency changes little.

[0102] For example, refer to Figure 16 After the electronic device of the embodiment is provided with the second antenna 4, the S11 of the second antenna 4 is as shown in the figure.

[0103] For example, refer to Figure 17 After the electronic device of the embodiment is provided with the second antenna 4, the efficiency of WIFI5G (5.15GHz-5.85GHz) and WIFI6E (5.95GHz-7.15GHz) is above -6.5dB

[0104] After the electronic device of the embodiment is provided with the second antenna 4, the isolation S12 of the first antenna 3 and the second antenna 4 is very poor near 2.7GHz, only -3dB. For example, refer to Figure 18 After a filter circuit is added to the feed of the second antenna 4, the isolation can be greatly improved, and the S12 is below -15dB.

[0105] Therefore, in order to solve the problem of poor isolation of the first antenna 3 and the second antenna 4, in some embodiments, the second antenna 4 further includes a filter circuit connected to the rear of the feed line of the second antenna 4, for filtering the resonant frequency of the second antenna 4 that coincides with the first antenna 3.

[0106] For example, refer to Figure 11The second antenna 4 of the embodiment can also adopt a specific implementation of the filtering circuit of the second antenna 4 of the first embodiment. In this embodiment, the inductance value of the filtering circuit of the second antenna 4 is 1.0 nH, and the capacitance value is 3.8 pF. Both values can be adjusted appropriately to make the second antenna 4 meet the isolation requirement.

[0107] In addition, the embodiment of the application further provides a control method for controlling the electronic device, and the method comprises:

[0108] The controller supplies power to the target metal segment 11 based on the control signal, and controls the first antenna 3 to receive or emit the radiation signal of the first frequency band through the target metal segment 11 of the metal frame 1.

[0109] The controller supplies power to the part of the metal of the target metal segment 11 forming the gap and the part of the metal of the target component 2 based on the control signal, so that the second antenna 4 receives or emits the radiation signal of the second frequency band through the part of the metal of the target metal segment 11 and the part of the metal of the target component 2.

[0110] The control signal is generated based on the running logic of the electronic device.

[0111] The control method of the embodiment of the application supplies power to the target metal segment 11 by generating the control signal based on the running logic of the electronic device. The control signal can correspond to control the first antenna 3 to receive or emit the radiation signal of the first frequency band through the target metal segment 11 of the metal frame 1, and / or supply power to the part of the metal of the target metal segment 11 forming the gap and the part of the metal of the target component 2, so that the second antenna 4 receives or emits the radiation signal of the second frequency band through the part of the metal of the target metal segment 11 and the part of the metal of the target component 2. Since the control method of the embodiment of the application is applied to the electronic device described above, it has the same beneficial effects, that is, it can improve the utilization rate of the limited space layout antenna in the electronic device.

[0112] It should be noted that the control signal is generated based on the running logic of the electronic device, which means that the controller can call and allocate the working state of the antenna according to the demand of the function of the electronic device itself, wherein the working state of the antenna at least includes the running state, the closed state, the running time, the running time sequence between multiple antennas, the priority, etc. The controller can be separately arranged or integrated in the chip inside the electronic device.

[0113] In some embodiments, the control can separately control the first antenna 3 to work based on the control signal.

[0114] In some embodiments, the control can separately control the second antenna 4 to work based on the control signal.

[0115] In some embodiments, the control can be based on a control signal while controlling the first antenna 3 and the second antenna 4 to operate simultaneously.

[0116] The above-mentioned embodiment numbers of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments. The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent flow transformation made by using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1.An electronic device, comprising: a metal frame; a target component fixed to a carrier of the metal frame; a first antenna comprising at least a target metal segment of the metal frame, the first antenna receiving or emitting a first frequency band of radiation signals through at least the target metal segment of the metal frame; a second antenna, the second antenna being a slot antenna, a gap between the target component and the target metal segment forming a slot of the slot antenna, the second antenna comprising the slot and a portion of metal of the target metal segment and a portion of metal of the target component forming the slot, the second antenna receiving or emitting a second frequency band of radiation signals through the portion of metal of the target metal segment and the portion of metal of the target component, wherein the first frequency band of radiation signals and the second frequency band of radiation signals have different frequency bands. 2.The electronic device of claim 1, wherein the first antenna further comprises: an isolation metal segment, the isolation metal segment being a metal segment of the metal frame isolated by two isolation openings, the target metal segment being isolated from the isolation metal segment by the isolation openings, wherein the isolation metal segment serves as a main radiator of the first antenna, and the target metal segment serves as a parasitic branch of the first antenna. 3.The electronic device of claim 2, wherein an opening of the slot shares the target metal segment with a target isolation opening of the two isolation openings. 4.The electronic device of claim 2, wherein the target metal segment is bent and located at a corner of the metal frame. 5.The electronic device of claim 2, wherein the target component is connected to the target metal segment at a bottom of the slot, and a feed structure of the second antenna is located close to the bottom of the slot. 6.The electronic device of claim 5, wherein the feed structure of the second antenna is located at a tenth of a length of the slot, and a circumference of the slot structure is a half of a wavelength of a resonant frequency of the second antenna. 7.The electronic device of claim 5, wherein a feed point of the first antenna is located on the isolation metal segment and away from the feed structure of the second antenna. 8.The electronic device of claim 1, wherein the second antenna further comprises a filter circuit connected behind a feed line of the second antenna for filtering a resonant frequency of the second antenna overlapping with the first antenna. 9.The electronic device of claim 1, wherein the target component is a speaker metal plate or a screen metal plate of the electronic device. 10.A control method, comprising: supplying power to a target metal segment based on a control signal to control a first antenna to receive or emit a first frequency band of radiation signals through the target metal segment of a metal frame; supplying power to a portion of metal of the target metal segment and a portion of metal of a target component forming a slot based on a control signal; so that a second antenna receives or emits a second frequency band of radiation signals through the portion of metal of the target metal segment and the portion of metal of the target component. The control signal is generated based on the running logic of the electronic device.

Images