CN117913508A

CN117913508A - Electronic device and control method

Info

Publication number: CN117913508A
Application number: CN202211236212.0A
Authority: CN
Inventors: 王泽东
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Filing date: 2022-10-10
Publication date: 2024-04-19

Abstract

The application provides electronic equipment and a control method, wherein the electronic equipment comprises a first body, a second body, a feed source, a main radiator and an auxiliary radiator; the second body can be folded or slid relative to the first body so that the second body and the first body can be in an unfolded state away from each other or can be in an overlapped state of being at least partially overlapped; the main radiator is arranged on the first body, and when the main radiator is in an unfolding state, the main radiator is used for working at first resonance under the action of excitation current provided by the feed source and supporting the transmission of wireless signals of a first frequency band; the auxiliary radiator is arranged on the second body, and when the auxiliary radiator is in an overlapped state, the auxiliary radiator and the main radiator are coupled and work together at the second resonance, and the electric length of the auxiliary radiator is equal to or slightly smaller than one half of the corresponding wavelength of the first frequency band. Based on this, the auxiliary radiator can improve the radiation performance of the main radiator.

Description

Electronic device and control method

Technical Field

The present application relates to the field of communications technologies, and in particular, to an electronic device and a control method.

Background

With the development of communication technology, an electronic device such as a smart phone may implement a folding or sliding operation so that the electronic device may have an unfolded configuration, a folded configuration, and a sliding configuration. And, the electronic device may include an antenna radiator to implement a mobile communication service.

However, in the folded or sliding configuration of the electronic device, the surrounding environment of the antenna radiator may be adversely changed compared to the unfolded configuration, resulting in a reduced radiation performance of the antenna radiator.

Disclosure of Invention

The application provides an electronic device and a control method thereof, which can improve the radiation performance of an antenna radiator of the electronic device in a folding or sliding mode.

In a first aspect, the present application provides an electronic device, comprising:

a first body;

the second body can be folded or slid relative to the first body, so that the second body and the first body can be in an unfolding state far away from each other or can be in an overlapping state at least partially overlapped;

A feed source for providing an excitation current;

The main radiator is arranged on the first body and grounded, is electrically connected with the feed source, and works under the action of the excitation current and supports the transmission of wireless signals of a first frequency band when in the unfolded state; and

The auxiliary radiator is arranged on the second body, when the auxiliary radiator is in the overlapping state, the auxiliary radiator and the main radiator are coupled and work together in second resonance, and the electric length of the auxiliary radiator is equal to or slightly smaller than one half of the corresponding wavelength of the first frequency band.

In a second aspect, the present application also provides an electronic device, including:

a first body;

A feed source for providing an excitation current;

The main radiator is arranged on the first body and grounded, is electrically connected with the feed source, and works at first resonance under the action of the excitation current when in the unfolding state;

the grounding system is electrically connected with the main radiator and realizes the grounding of the main radiator; when the main radiator supports the first resonance, the current distribution of the excitation current on the ground system comprises a first longitudinal mode current along the extending direction of the main radiator and a first transverse mode current perpendicular to the extending direction of the main radiator; and

The auxiliary radiator is arranged on the second body, when the auxiliary radiator and the main radiator are in an overlapped state, the auxiliary radiator and the main radiator are coupled and work together in second resonance, and the current distribution of the exciting current on the ground system comprises second longitudinal mode current along the extending direction of the auxiliary radiator, third longitudinal mode current along the extending direction of the main radiator and second transverse mode current perpendicular to the extending direction of the main radiator.

In a third aspect, the present application also provides an electronic device, including:

a first body;

A feed source for providing an excitation current;

the main radiator is arranged on the first body and grounded, and is electrically connected with the feed source; when in the unfolded state, the main radiator is used for working at a first resonance under the action of the excitation current;

The first switch circuit is electrically connected with the main radiator, and has a first voltage value when the main radiator is in the unfolding state and works at first resonance; and

The auxiliary radiator is arranged on the second body, when the auxiliary radiator is in an overlapped state, the auxiliary radiator is coupled with the main radiator, the first switch circuit has a second voltage value, and the second voltage value is smaller than the first voltage value.

In a fourth aspect, the present application further provides a control method, which is applied to an electronic device, where the electronic device includes a first body, a second body, a feed source, a main radiator, a first switch circuit, and an auxiliary radiator; the auxiliary radiator is arranged on the second body, the main radiator is arranged on the first body and grounded, the first switch circuit is electrically connected with the main radiator, and the feed source is electrically connected with the main radiator and is used for providing excitation current; the control method comprises the following steps:

the second body and the first body are controlled to be far away from each other and in an unfolding state, the main radiator is controlled to work at first resonance under the action of the excitation current, and the first switch circuit is enabled to have a first voltage value;

The second body is controlled to fold or slide relative to the first body so that the second body at least partially overlaps with the first body and is in an overlapping state, the auxiliary radiator is controlled to be coupled with the main radiator, and the first switch has a second voltage value, and the second voltage value is smaller than the first voltage value.

According to the electronic equipment and the control method, the main radiator of the electronic equipment is arranged on the first body, the auxiliary radiator is arranged on the second body, and when the first body and the second body are in a mutually-far unfolding state, the main radiator can form first resonance and can support wireless signals of a first frequency band; when the first body and the second body are in an overlapping state of at least partial overlapping, the auxiliary radiator can be coupled with the main radiator and work together at the second resonance, and the electric length of the auxiliary radiator can be equal to or slightly smaller than one half of the corresponding wavelength of the first frequency band. Based on the above, the auxiliary radiator of the electronic equipment can work together with the main radiator in the second resonance mode, the second resonance can improve the radiation performance of the main radiator, and the radiation performance of the main radiator is better.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the application and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a first structure of an electronic device according to an embodiment of the present application.

Fig. 2 is a schematic structural view of the electronic device shown in fig. 1 in another form.

Fig. 3 is a schematic diagram of a second structure of an electronic device according to an embodiment of the present application.

Fig. 4 is a schematic structural view of the electronic device shown in fig. 3 in another form.

Fig. 5 is a schematic diagram of a third structure of an electronic device according to an embodiment of the present application.

Fig. 6 is a schematic structural view of the electronic device shown in fig. 5 in another form.

Fig. 7 is a schematic diagram comparing S-parameter curves of the electronic device shown in fig. 2 in an overlapped state with and without auxiliary radiator.

Fig. 8 is a schematic diagram showing comparison of antenna efficiency curves of the electronic device shown in fig. 2 in an overlapped state with and without auxiliary radiator.

Fig. 9 is a schematic diagram of a current mode of the electronic device shown in fig. 1 operating at a first resonance.

Fig. 10 is a schematic view of a current mode of the electronic device shown in fig. 2 operating at a first resonance and a second resonance.

Fig. 11 is a schematic diagram of far-field directions in which the electronic device shown in fig. 2 is provided with and without auxiliary radiators.

Fig. 12 is a schematic diagram of a fourth structure of an electronic device according to an embodiment of the present application.

Fig. 13 is a schematic diagram of a fifth structure of an electronic device according to an embodiment of the present application.

Fig. 14 is a schematic view of a sixth structure of an electronic device according to an embodiment of the present application.

Fig. 15 is a schematic view of a seventh structure of an electronic device according to an embodiment of the present application.

Fig. 16 is a schematic view of an eighth structure of an electronic device according to an embodiment of the present application.

Fig. 17 is a schematic flow chart of a control method according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to fig. 1 to 17 in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.

An embodiment of the present application provides an electronic device 10. The electronic device 10 may be a smart phone, a tablet computer, or the like, and may also be a game device, an augmented reality (Augmented Reality, abbreviated as AR) device, an automobile device, a data storage device, an audio playing device, a video playing device, a notebook computer, a desktop computing device, or the like. Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram of a first structure of an electronic device 10 according to an embodiment of the application, and fig. 2 is a schematic diagram of the electronic device 10 shown in fig. 1 in another form. The electronic device 10 includes a first body 100, a second body 200, a primary radiator 310, a secondary radiator 320, and a feed 330.

The first body 100 and the second body 200 may be folded or slid toward each other such that the second body 200 and the first body 100 may be in an unfolded state away from each other, or the second body 200 and the first body 100 may be in an overlapped state where they are at least partially overlapped. The main radiator 310 may be disposed at the first body 100, for example, but not limited to, the main radiator 310 may be connected to or formed at the first body 100, and the main radiator 310 may move with the movement of the first body 100. The main radiator 310 may be directly or indirectly electrically connected to the feed source 330, where the feed source 330 may provide an excitation current to the main radiator 310, and when the first body 100 and the second body 200 are in an extended state, the main radiator 310 may operate at a first resonance under the effect of the excitation current, where the first resonance may support wireless signal transmission in a first frequency band in free space, and the main radiator 310 may support the first frequency band. The auxiliary radiator 320 may be disposed at the second body 200, for example, but not limited to, the auxiliary radiator 320 may be connected to or formed at the second body 200, and the auxiliary radiator 320 may move with the movement of the second body 200. When the first body 100 and the second body 200 are folded or slid and the second body 200 and the first body 100 are in an overlapping state where they are at least partially overlapped, the auxiliary radiator 320 may be (electromagnetically) coupled with the main radiator 310, the auxiliary radiator 320 may work together with the main radiator 310 at a second resonance, the second resonance may support wireless signal transmission of the second frequency band in the free space, and the auxiliary radiator 320 may support the second frequency band together with the main radiator 310.

It should be noted that fig. 1 to 16 of the embodiment of the present application are only for illustrating the structure of the electronic device 10, and are not intended to limit the specific structure of the electronic device 10. For example, fig. 1 illustrates that the auxiliary radiator 320 is spaced apart from the second body 200, and both may be integrally connected using a non-conductive material in actual production, or the auxiliary radiator 320 may be formed using a conductive material of the second body 200. The drawings of the embodiment of the present application are not used for limiting the relative positional relationship between the auxiliary radiator 320 and the second body 200, and any structure of the electronic device 10 that can make the second body 200 drive the auxiliary radiator 320 to move can be within the protection scope of the embodiment of the present application.

It is understood that the first body 100 and the second body 200 may have a thin plate-like or sheet-like structure, or may have a hollow frame structure. The first body 100, the second body 200 may provide support for the electronics in the electronic device 10 to mount the electronics in the electronic device 10 together. For example, in the electronic apparatus 10, a camera, a receiver, a circuit board provided with a radio frequency circuit such as a feed source, and electronic devices such as a power source may be mounted on the first body 100 and the second body 200 for fixing. The specific structure of the first body 100 and the second body 200 is not limited in the embodiment of the present application.

Wherein the first body 100 and the second body 200 can be switched between an overlapped state and an unfolded state during the folding or sliding operation.

For example, when the first body 100 and the second body 200 perform a folding operation, as shown in fig. 1, the first body 100 and the second body 200 may move left and right and relatively expand to an expanded state; as shown in fig. 2, the first body 100 and the second body 200 may also be moved left and right and folded over each other to an overlapped state. It should be understood that the folding direction of the first body 100 and the second body 200 when performing the folding operation is not limited to the left-right folding direction shown in fig. 1 and 2, for example, please refer to fig. 3 and 4, fig. 3 is a second schematic structural diagram of the electronic device 10 provided in the embodiment of the present application, fig. 4 is a schematic structural diagram of the electronic device 10 shown in fig. 3 in another form, and in the embodiment shown in fig. 3, the first body 100 and the second body 200 can move up and down and relatively expand to the expanded state when performing the folding operation; in the embodiment of fig. 4, the first body 100 and the second body 200 may move up and down and be folded to each other in an overlapped state when performing the folding operation. Based on this, the embodiment of the present application is not limited to the specific folding manner of the first body 100 and the second body 200.

For another example, when the first body 100 and the second body 200 perform the sliding operation, please refer to fig. 5 and fig. 6, fig. 5 is a third structural schematic diagram of the electronic device 10 according to the embodiment of the present application, and fig. 6 is a structural schematic diagram of the electronic device 10 shown in fig. 5 in another state. As shown in fig. 5, the first body 100 and the second body 200 may slide relatively far apart to a deployed state; as shown in fig. 6, the first body 100 and the second body 200 may also slide close to each other to an overlapped state.

It is to be appreciated that as shown in fig. 1 to 6, the electronic device 10 may further include, but is not limited to, a connection structure 400 including a hinge structure, a slide rail structure, etc., so that the first body 100 and the second body 200 may be folded and slid with each other. For the specific structure of the connection structure 400 such as the rotating shaft structure, the slide rail structure, etc., reference is made to the description in the related art, and detailed description thereof will not be given here.

It can be understood that since the first body 100 and the second body 200 each have a certain thickness, the first body 100 and the second body 200 can be stacked in the thickness direction when the first body 100 and the second body 200 are in an overlapped state by performing a folding or sliding operation. Also, since the first body 100 and the second body 200 may be the same or different in size, in the overlapped state, all of the first body 100 may overlap all or part of the second body 200, or part of the first body 100 may overlap all or part of the second body 200. The embodiment of the present application is not limited to a specific structure in which the first body 100 and the second body 200 are in an overlapped state.

The main radiator 310 and the auxiliary radiator 320 may be made of a conductive material and may support transmission of wireless signals. For example, the primary radiator 310, the secondary radiator 320 may support transmission of wireless signals such as, but not limited to, wireless fidelity (WIRELESS FIDELITY, wi-Fi) signals, global positioning system (Global Positioning System, GPS) signals, third generation mobile communication technology (3 rd-generation, 3G), fourth generation mobile communication technology (4 th-generation, 4G), and fifth generation mobile communication technology (5 th-generation, 5G). When the auxiliary radiator 320 is electromagnetically coupled to the main radiator 310, the auxiliary radiator 320 and the main radiator 310 can support the wireless signal of the second frequency band, at this time, the auxiliary radiator 320 can be used as an auxiliary branch of the main radiator 310, and the auxiliary radiator 320 can improve the radiation performance of the main radiator 310.

As shown in fig. 1, 3 and 5, when the first body 100 and the second body 200 are in the unfolded state, the main radiator 310 and the auxiliary radiator 320 are far away from each other and do not overlap, and do not generate electromagnetic coupling, and at this time, the main radiator 310 may generate the first resonance alone and support the first frequency band under the excitation of the excitation current provided by the feed source 330.

As shown in fig. 2, fig. 4, and fig. 6, when the first body 100 and the second body 200 are in an overlapped state, the exciting current provided by the feed source 330 may be electromagnetically coupled to the auxiliary radiator 320 via the main radiator 310, so that the main radiator 310 and the auxiliary radiator 320 may be mutually coupled and jointly operate at a second resonance different from the first resonance, and the second resonance may support transmission of a wireless signal in the second frequency band, so that the auxiliary radiator 320 and the main radiator 310 may jointly support a wireless signal in the second frequency band, and at this time, the auxiliary radiator 320 may serve as an auxiliary branch and a parasitic branch of the main radiator 310.

It will be appreciated that when the second body 200 at least partially overlaps the first body 100 and is in an overlapping state, the main radiator 310 may be electromagnetically coupled to the auxiliary radiator 320 and jointly support the second resonance, and the main radiator 310 may also support a resonance such as a third resonance as a main radiating branch and support transmission of wireless signals. That is, when the first body 100 and the second body 200 are in the overlapped state, the main radiator 310 may operate at the third resonance or may operate at the second resonance together with the auxiliary radiator 320.

It will be appreciated that, since the third resonance and the first resonance are supported by the main radiator 310, the third resonance is the same as or similar to the excitation mode of the first resonance, but since the first resonance is supported by the main radiator 310 in the unfolded state and the third resonance is supported by the main radiator 310 in the overlapped state, there may be a difference between the third resonance and the first resonance, for example, there may be a certain frequency offset between the frequency band of the wireless signal supported by the third resonance and the frequency band of the wireless signal supported by the first resonance. It can be appreciated that the third resonance may be a resonance mode in which the first resonance is optimized by the auxiliary radiator 320 in the overlapping state, and a frequency band of the wireless signal supported by the third resonance may at least partially overlap with a frequency band of the wireless signal supported by the first resonance, and the third resonance may also support transmission of the wireless signal in the first frequency band. It should be noted that, in the embodiment of the present application, the third resonance may be different from the excitation mode of the first resonance, and the frequency band of the wireless signal supported by the third resonance and the first resonance may also be different.

The electrical length of the auxiliary radiator 320 may be equal to or slightly less than one half of the corresponding wavelength of the first frequency band, so that the auxiliary radiator 320 may couple with the main radiator 310 in a dipole mode and work together at the second resonance.

For example, please refer to fig. 1 and fig. 2 in combination with fig. 7 and fig. 8, fig. 7 is a diagram showing a comparison of S-parameter curves of the electronic device 10 shown in fig. 2 with the auxiliary radiator 320 being disposed and without the auxiliary radiator 320 being disposed, and fig. 8 is a diagram showing a comparison of antenna efficiency curves of the electronic device 10 shown in fig. 2 with the auxiliary radiator 320 being disposed and without the auxiliary radiator 320 being disposed.

In fig. 7, a curve S1 is an S parameter curve in which the auxiliary radiator 320 is not disposed (or the electric length of the auxiliary radiator 320 is 0) in the overlapped state of the electronic device 10 in fig. 2; the curve S2 is an S-parameter curve when the auxiliary radiator 320 is disposed in the overlapped state of the electronic device 10 of fig. 2 (the electric length of the auxiliary radiator 320 is slightly less than half the wavelength corresponding to the first frequency band). Curves S3 and S4 in fig. 8 are radiation efficiency curves and system efficiency curves of the electronic device 10 of fig. 2 in the overlapped state without the auxiliary radiator 320 (or the auxiliary radiator 320 has an electrical length of 0); curves S5 and S6 are a radiation efficiency curve and a system efficiency curve of the auxiliary radiator 320 (the electric length of the auxiliary radiator 320 is slightly smaller than one half of the corresponding wavelength of the first frequency band) set in the overlapping state of the electronic device 10 of fig. 2.

Comparing the curves S1 and S2, it is known that the main radiator 310 can operate alone at the first resonance (e.g., the resonance point A1 in fig. 7) when the electronic device 10 is in the unfolded state; when the electronic device 10 is in the overlapped state, the main radiator 310 may operate at the third resonance (e.g., the resonance point A2 in fig. 7), and the main radiator 310 may also operate at the second resonance together with the auxiliary radiator 320 (e.g., the resonance point B1 in fig. 7). And, the center frequency of the second resonance in which the auxiliary radiator 320 and the main radiator 310 work together may be greater than the center frequency of the first resonance and the third resonance (the frequency of the right resonance point B1 is greater than the frequency of the left resonance point A1 and the frequency of the resonance point A2 in the curve S2); comparing the curves S3 to S6, the radiation efficiency and the system efficiency of the electronic device 10 with the auxiliary radiator 320 can be improved by more than 2.1dB compared with the system efficiency of the electronic device 10 without the auxiliary radiator 320, the auxiliary radiator 320 is used as an auxiliary branch of the main radiator 310, the second resonance formed by the auxiliary radiator 320 and the main radiator 310 can improve the radiation performance of the first resonance and the third resonance formed by the main radiator 310, and the radiation performance improving effect of the electronic device 10 is very obvious.

It can be understood that, as shown in curves S5 and S6 in fig. 8, after the auxiliary radiator 320 is disposed, the second resonance has a radiation efficiency and a system efficiency pit near the 0.9GHz band, in order to avoid the efficiency pit affecting the first resonance of the operation of the main radiator 310, the electrical length of the auxiliary radiator 320 in the embodiment of the present application may be slightly smaller than one half of the first frequency band, so that the frequency of the resonance point B1 of the second resonance where the auxiliary radiator 320 and the main radiator 310 work together may avoid 0.9GHz and be about 0.86GHz, and at this time, the second resonance may have a wider bandwidth, and the radiation performance of the third resonance and the second resonance may be better. Of course, it should be noted that when the electrical length of the auxiliary radiator 320 is equal to one half of the first frequency band, as shown in the curves S5 and S6, after the auxiliary radiator 320 is disposed, the antenna efficiency of the frequency band covered by the third resonance and the second resonance is still improved, but the antenna efficiency is weaker in the partial frequency band adjacent to the second resonance frequency band, for example, the 0.9GHz antenna efficiency is weaker, so that the bandwidth of the second resonance is narrower.

It is understood that the electrical length may refer to the effective electrical length. In general, the electrical length or effective electrical length of a radiator is often distinguished from the actual physical length of the radiating branches by the shape of the radiator, the capacitance, resistance, inductance, etc. of the electrical connection of the radiator. For example, as shown in fig. 1, when a tuning circuit or a matching circuit that can change the effective electrical length is not provided on the auxiliary radiator 320, the electrical length of the auxiliary radiator 320 may be equal to the physical length between both ends of the auxiliary radiator 320. When the tuning circuit and the matching circuit, which can change the effective electrical length, are further provided on the auxiliary radiator 320, the electrical length of the auxiliary radiator 320 may be greater or less than the physical length between the two ends of the auxiliary radiator 320. In actual debugging, the shape of the auxiliary radiator 320, and the capacitance, inductance, resistance, and other devices of the electrical connection can be adjusted, so that the electrical length of the auxiliary radiator 320 is equal to or slightly less than one half of the corresponding wavelength of the first frequency band. The specific debugging method is not described here in detail.

It is understood that the first frequency band may correspond to a frequency band range, for example, the first frequency band may be an N28 frequency band, and the corresponding frequency band range may be 703MHz to 803MHz, and the center frequency band is about 750MHz. At this time, the electrical length of the auxiliary radiator 320 is equal to or slightly less than one-half of the corresponding wavelength of the first frequency band, which may mean that the electrical length of the auxiliary radiator 320 is equal to or slightly less than one-fourth of the corresponding wavelength of the center frequency band (e.g., 750 MHz) of the first frequency band (e.g., N28 frequency band).

It is understood that when the main radiator 310 and the auxiliary radiator 320 are electromagnetically coupled as the first body 100 and the second body 200 are folded or slid, the second frequency band supported by the main radiator 310 and the auxiliary radiator 320 together may at least partially overlap with the first frequency band supported by the main radiator 310. For example, the first frequency band may be 703MHz to 788MHz and the second frequency band may be 703MHz to 870MHz, which may overlap within the range of 703MHz to 788 MHz.

It is understood that the first frequency band and the second frequency band may be two frequency bands having different center frequencies within the same frequency band range (e.g., each within a low frequency/medium high frequency/high frequency band range), and the first frequency band and the second frequency band may at least partially overlap, so that the main radiator 310 and the auxiliary radiator 320 may support wireless signals together, such as supporting wireless signals of N28 frequency bands. Of course, the first frequency band and the second frequency band can also be wireless signals in different frequency band ranges. The embodiment of the application does not limit the specific range of the first frequency band and the second frequency band.

In the electronic device 10 of the embodiment of the present application, the main radiator 310 is disposed on the first body 100, and when the first body 100 and the second body 200 are far away from each other and are in the unfolded state, the main radiator 310 can form a first resonance and can support the wireless signal of the first frequency band; the auxiliary radiator 320 is disposed on the second body 200, when the first body 100 and the second body 200 are folded or slid relatively so that the second body 200 is at least partially overlapped with the first body 100 and is in an overlapped state, the auxiliary radiator 320 can be coupled with the main radiator 310 and jointly work at the second resonance, and the electrical length of the auxiliary radiator 320 can be equal to or slightly less than half the corresponding wavelength of the first frequency band. Based on this, the auxiliary radiator 320 may operate in a dipole mode with the main radiator 310 at a second resonance, which may increase the radiation performance of the main radiator 310, and the radiation performance of the main radiator 310 may be better.

Referring to fig. 2 again, when the second body 200 at least partially overlaps the first body 100 and is in an overlapping state, all of the main radiators 310 may overlap with part of the auxiliary radiators 320, the projections of the main radiators 310 on the second body 200 may be all located on the auxiliary radiators 320, and the branch lengths of the auxiliary radiators 320 may be longer than the branch lengths of the main radiators 310. At this time, the main radiator 310 is more easily electromagnetically coupled with the auxiliary radiator 320.

Of course, the auxiliary radiator 320 may have other positional relationships with the main radiator 310, for example, but not limited to, a part of the auxiliary radiator 320 may overlap with the main radiator 310 in an overlapping state, and another part of the auxiliary radiator 320 may not overlap with the main radiator 310; or all of the auxiliary radiators 320 are not overlapped with the main radiator 310 in the overlapped state, but the end portions of the two are closely spaced so that the two can be electromagnetically coupled. The specific positional relationship between the auxiliary radiator 320 and the main radiator 310 in the overlapped state is not limited, and any positional relationship that can enable electromagnetic coupling between the two in the overlapped state is within the protection scope of the embodiment of the present application.

Referring again to fig. 1, the electronic device 10 may further include a ground system 340, where the ground system 340 may be a zero potential area or structure. The primary radiator 310 may be electrically connected to the ground system 340 and grounded. For example, the main radiator 310 may include a first end 311 and a second end 312, the first end 311 may be directly or indirectly electrically connected to the ground system 340 to achieve grounding, the second end 312 may extend in a direction away from the first end 311, and the second end 312 may be a free end of the main radiator 310.

It can be appreciated that the main radiator 310 may operate in a quarter mode at the first resonance, and the electrical length of the main radiator 310 may be equal to a quarter of the wavelength corresponding to the first frequency band, where the input impedance of the main radiator 310 presents a pure resistance, which is more beneficial for the main radiator 310 to form the first resonance. Of course, the main radiator 310 may also operate at the first resonance in other modes, and the main radiator 310 may also have an electrical length with other dimensions, which is not limited by the embodiment of the present application.

It will be appreciated that the auxiliary radiator 320 may also include opposite ends, and that both ends of the auxiliary radiator 320 may be free ends of the auxiliary radiator 320, and that the auxiliary radiator 320 may be in a "floating" state without being grounded. When the auxiliary radiator 320 is in dipole mode, an excitation current coupled to the auxiliary radiator 320 may flow between both ends of the auxiliary radiator 320 and may excite the auxiliary radiator 320 to co-operate with the main radiator 310 at the second resonance.

Referring to fig. 1 and fig. 2 in combination with fig. 9 and fig. 10, fig. 9 is a schematic diagram of a current mode in which the electronic device 10 shown in fig. 1 operates at a first resonance, and fig. 10 is a schematic diagram of a current mode in which the electronic device 10 shown in fig. 2 operates at a first resonance and a second resonance.

As shown in fig. 9, when the first body 100 and the second body 200 are in the unfolded state, the main radiator 310 may operate at a first resonance, and the current distribution of the excitation current on the ground system 340 includes a first transverse mode current I1 perpendicular to the extension direction of the main radiator 310 and a first longitudinal mode current I2 along the extension direction of the main radiator 310.

When the second body 200 is at least partially overlapped with the first body 100 in an overlapped state as shown in fig. 10, the main radiator 310 and the radiator 320 may be electromagnetically coupled to operate at a second resonance, and at this time, as shown in the left graph (a) of fig. 10, the current distribution of the excitation current on the ground system 340 includes a second transverse mode current I4 perpendicular to the extension direction of the main radiator 310 and a third longitudinal mode current I5 along the extension direction of the main radiator 310. As can be seen from the right hand graph (b) of fig. 10, the current distribution of the excitation current over the ground system 340 may further comprise a second longitudinal mode current I3 along the extension of the auxiliary radiator. Since the first longitudinal mode current I2, the second longitudinal mode current I3, and the third longitudinal mode current I5 all flow along the propagation direction of the electromagnetic wave in the ground system 340, the second longitudinal mode current I3 may further weight the resonant mode component of the longitudinal mode current along the extension direction of the main radiator 310 in the entire resonant mode, so that the radiation efficiency of the main radiator 310 is higher.

Referring to fig. 11, fig. 11 is a schematic diagram of far-field directions of the electronic device 10 shown in fig. 2 in which the auxiliary radiator 320 is disposed and the auxiliary radiator 320 is not disposed, wherein a curve S7 is a schematic diagram of far-field directions of the electronic device 10 in which the auxiliary radiator 320 is not disposed when the second body 200 at least partially overlaps the first body 100, and a curve S8 is a schematic diagram of far-field directions of the electronic device 10 in which the auxiliary radiator 320 is disposed when the second body 200 at least partially overlaps the first body 100. As can be seen from the curves S7 and S8, when the auxiliary radiator 320 is disposed, the zero direction of the second resonance is more horizontal, so that it can be further proved that the auxiliary radiator 320 can weight the resonant mode component of the longitudinal mode current along the radiator extension direction in the whole resonant mode, and the second resonance can improve the radiation efficiency of the main radiator 310.

It will be appreciated that when the main radiator 310 is electrically connected to the ground system 340 and grounded, the main radiator 310 may have a ground stub perpendicular to its direction of extension, through which the main radiator 310 may be grounded, the main radiator 310 may be in the form of an inverted-F antenna and operate in a first resonance of a quarter mode, and the excitation current may form a transverse mode current perpendicular to its direction of extension and a longitudinal mode current along its direction of extension on the ground system 340. Of course, when the main radiator 310 is in other antenna forms, the main radiator 310 may generate only the longitudinal mode current or the transverse mode current I1 on the ground system 340, and the specific structure of the main radiator 310 is not limited in the embodiment of the present application.

It will be appreciated that when the auxiliary radiator 320 is not grounded in a suspended state, the auxiliary radiator 320 is more likely to co-operate with the main radiator 310 in a dipole mode at a second resonance, and that the excitation current is more likely to form a second longitudinal mode current I3 in the ground system 340 along the extension of the auxiliary radiator 320.

It is understood that the main radiator 310 may be disposed along a first direction H1, the auxiliary radiator 320 may also extend along the first direction H1, the first direction H1 may be a flow direction of a first longitudinal mode current I2, a second longitudinal mode current I3, and a third longitudinal mode current I5, and the second direction H2 perpendicular to the first direction H1 may be a flow direction of a transverse mode current, for example, a first transverse mode current I1 and a second transverse mode current I4. Thus, the extension directions of the main radiator 310 and the auxiliary radiator 320 are the same, the auxiliary radiator 320 may be the same as the direction of the main resonance mode of the main radiator 310, and the auxiliary radiator 320 may further improve the antenna performance of the main radiator 310.

In the electronic device 10 according to the embodiment of the present application, the second longitudinal mode current I3 excited on the ground system 340 by the second resonance of the auxiliary radiator 320 and the main radiator 310 in cooperation can weight the resonant mode component of the longitudinal mode current along the radiator extension direction in the whole resonant mode, so that the radiation efficiency of the main radiator 310 can be improved by the second resonance, and the radiation performance of the main radiator 310 is better.

Referring to fig. 12, fig. 12 is a schematic diagram of a fourth structure of the electronic device 10 according to the embodiment of the application. The electronic device 10 may also include a first switching circuit 350.

The first switching circuit 350 may be directly or indirectly electrically connected to the main radiator 310. When the first body 100 and the second body 200 are in the unfolded state and the main radiator 310 operates at the first resonance under the excitation current, the first switching circuit 350 may have a first voltage value. When the second body 200 is in an overlapped state with the first body 100 and the auxiliary radiator 320 and the main radiator 310 are coupled and operate together at the second resonance, the first switch may have a second voltage value, which may be smaller than the first voltage value, so that the electronic device 10 may reduce the voltage of the first switch circuit 350 in the overlapped state.

It will be appreciated that the first switching circuit 350 may adjust the electrical length of the main radiator 310 such that the first resonance supports wireless signals in different frequency bands within the first frequency band. For example, the first switch circuit 350 includes one or more circuit branches therein, one end of each circuit branch may be electrically connected to the main radiator 310, the other end of each circuit branch may be grounded, each circuit branch may enable the main radiator 310 to have a corresponding electrical length, at least two circuit branches may enable the electrical lengths of the main radiator 310 to be different, and when the main radiator 310 selects to switch between different circuit branches, the main radiator 310 may support transmission of wireless signals in different frequency bands within the first frequency band.

It is to be understood that the first switch circuit 350 may include one or more electronic devices such as a capacitor, an inductor, a switch, etc. formed in series or parallel, and the specific structure of the first switch circuit 350 is not limited in the embodiments of the present application. All structures that can adjust the electrical length of the main radiator 310 are within the scope of the embodiments of the present application.

In the electronic device 10 of the embodiment of the present application, when the first body 100 and the second body 200 are in the unfolded state and the main radiator 310 is operated at the first resonance, the first switch circuit 350 has a larger first voltage value, and the radiation performance of the main radiator 310 is greatly affected by the loss of the first switch circuit 350; when the first body 100 and the second body 200 are in the overlapped state, the auxiliary radiator 320 may be electromagnetically coupled with the main radiator 310 and operate at the second resonance, the auxiliary radiator 320 may disperse a portion of energy transmitted to the main radiator 310 by the feed source 330, the first switching circuit 350 may have a second voltage value smaller than the first voltage value, and the voltage of the first switching circuit 350 may be reduced. Based on this, on the one hand, the electronic device 10 of the embodiment of the present application can reduce the voltage of the first switch circuit 350 by changing the form of the electronic device 10, and the embodiment of the present application provides an innovative way of reducing the voltage of the switch circuit; on the other hand, when the voltage of the first switching circuit 350 decreases, the loss of the first switching circuit 350 decreases and the radiation performance of the main radiator 310 increases, because the loss of the first switching circuit 350 is proportional to the square of the voltage on the switching circuit and the voltage decreases.

Referring to fig. 12 in combination with fig. 13, fig. 13 is a schematic diagram of a fifth structure of the electronic device 10 according to the embodiment of the application. The electronic device 10 may also include a second switching circuit 360.

The second switching circuit 360 may be directly or indirectly electrically connected to the auxiliary radiator 320, and the second switching circuit 360 may adjust the electrical length of the auxiliary radiator 320 so that the second resonance supports wireless signals in different frequency bands within the second frequency band.

For example, the second switch circuit 360 includes one or more circuit branches therein, one end of each circuit branch may be electrically connected to the auxiliary radiator 320, the other end of each circuit branch may be grounded, each circuit branch may enable the auxiliary radiator 320 to have a corresponding electrical length, at least two circuit branches may enable the electrical lengths of the auxiliary radiator 320 to be different, and when the auxiliary radiator 320 selects to switch between different circuit branches, the auxiliary radiator 320 may support transmission of wireless signals in different frequency bands within the second frequency band.

It will be appreciated that the second switching circuit 360 may also adjust the electrical length of the auxiliary radiator 320 so that the auxiliary radiator 320 may be electromagnetically coupled to the main radiator 310. When the main radiator 310 has different electrical lengths under the action of the first switch circuit 350, the second switch circuit 360 can correspondingly adjust the electrical length of the auxiliary radiator 320, so that the auxiliary radiator 320 is more easily electromagnetically coupled with the main radiator 310 to work together at the second resonance.

It is to be understood that the second switch circuit 360 may include one or more electronic devices such as a capacitor, an inductor, and a switch, which are formed in series or parallel, and the specific structure of the second switch circuit 360 is not limited in the embodiments of the present application. All structures that can adjust the electrical length of the auxiliary radiator 320 are within the scope of the embodiments of the present application.

The electronic device 10 according to the embodiment of the present application includes the first switch circuit 350 and the second switch circuit 360, where the first switch circuit 350 can adjust the frequency band of the wireless signal supported by the first resonance, and the second switch circuit 360 can adjust the frequency band of the wireless signal supported by the second resonance, so that the first resonance and the second resonance in the embodiment of the present application can be switched between different frequency bands, and the bandwidth covered by the electronic device 10 is wider.

Referring to fig. 14, fig. 14 is a schematic diagram of a sixth structure of the electronic device 10 according to the embodiment of the application. The electronic device 10 may further include a matching circuit 370, where the matching circuit 370 may be connected in series between the feed source 330 and the primary radiator 310, where the matching circuit 370 may match an impedance of the feed source 330 when transmitting the excitation current, so that the primary radiator 310 may form a first resonance and support transmission of wireless signals in a first frequency band.

It is appreciated that the matching circuit 370 may include one or more capacitors, inductors, switches, etc. formed in series or parallel. The specific structure of the matching circuit 370 is not limited in the embodiment of the present application. Any structure capable of adjusting the impedance matching of the exciting current is within the protection scope of the embodiment of the application.

The electronic device 10 of the embodiment of the application is provided with the matching circuit 370, so that the first resonance and the second resonance can be tuned more easily, and the tuning difficulty of the electronic device 10 can be reduced.

Based on the above-mentioned electronic device 10, it should be noted that the electronic device 10 according to the embodiment of the present application may be arbitrarily combined on the premise of no conflict, and the combined electronic device 10 is also within the protection scope of the embodiment of the present application.

For example, the electronic device 10 of the embodiment of the present application may include a first body 100, a second body 200, a primary radiator 310, a secondary radiator 320, a feed 330, and a ground system 340. The ground system 340 is electrically connected to the main radiator 310 and implements the grounding of the main radiator 310; the second body 200 may be folded or slid with respect to the first body 100 such that the second body 200 and the first body 100 may be in an unfolded state away from each other or may be in an overlapped state at least partially overlapped; feed 330 may be used to provide excitation current; the main radiator 310 is disposed on the first body 100 and grounded, the main radiator 310 is electrically connected to the feed source 330, the main radiator 310 can operate at a first resonance under the action of an excitation current, and at this time, the current distribution of the excitation current on the ground system 340 can include a transverse mode current I1 perpendicular to the extension direction of the main radiator 310 and a first longitudinal mode current I2 along the extension direction of the main radiator 310; the auxiliary radiator 320 is disposed on the second body 200, when the second body 200 and the first body 100 are in an overlapped state, the auxiliary radiator 320 can be coupled with the main radiator 310 and work together at a second resonance, and at this time, the current distribution of the excitation current on the ground system 340 includes a second longitudinal mode current I3 along the extending direction of the auxiliary radiator 320, a third longitudinal mode current I5 along the extending direction of the main radiator 310, and a second transverse mode current I4 perpendicular to the extending direction of the main radiator 310.

It will be appreciated that the first resonance is used to support transmission of wireless signals in a first frequency band and the second resonance is used to support transmission of wireless signals in a second frequency band, the second frequency band and the first frequency band at least partially overlapping.

It will be appreciated that the first resonance is used to support transmission of wireless signals in a first frequency band, and that the electrical length of the primary radiator 310 is equal to one quarter of the corresponding wavelength in the first frequency band.

It will be appreciated that the second resonance is used to support transmission of wireless signals in a second frequency band, and that the electrical length of the auxiliary radiator 320 is equal to or slightly less than one-half the corresponding wavelength in the first frequency band.

It is understood that the electronic device 10 may further include a first switch circuit 350, the first switch circuit 350 being electrically connected to the main radiator 310, the first switch circuit 350 having a first voltage value when the first body 100 and the second body 200 are in the unfolded state and the main radiator 310 is operated at the first resonance; when the second body 200 is in an overlapped state with the first body 100 and the auxiliary radiator 320 is coupled with the main radiator 310, the first switching circuit 350 has a second voltage value, which is smaller than the first voltage value.

It will be appreciated that the first switching circuit 350 is configured to adjust the electrical length of the main radiator 310 such that the first resonance supports wireless signals in different frequency bands within the first frequency band.

It will be appreciated that the electronic device 10 further includes a second switching circuit 360, the second switching circuit 360 being electrically connectable to the auxiliary radiator 320, the second switching circuit 360 being operable to adjust the electrical length of the auxiliary radiator 320 such that the second resonance is operable to support wireless signals in different frequency bands within the second frequency band.

It will be appreciated that the electronic device 10 may also include a matching circuit 370, the matching circuit 370 being connectable in series between the feed 330 and the primary radiator 310, the matching circuit 370 being configured to match an impedance of the feed 330 when transmitting the excitation current.

In the electronic device 10 according to the embodiment of the present application, when the main radiator 310 works at the first resonance, the current distribution of the excitation current on the ground system 340 includes the transverse mode current I1 and the first longitudinal mode current I2, and when the auxiliary radiator 320 works together with the main radiator 310 at the second resonance, the current distribution of the excitation current on the ground system 340 includes the second longitudinal mode current I3, the third longitudinal mode current I5 and the second transverse mode current I4, and the second longitudinal mode current I3 can weight the resonant mode component of the longitudinal mode current along the radiator extension direction in the whole resonant mode, so that the second resonance can improve the radiation efficiency of the main radiator 310, and the radiation performance of the main radiator 310 is better.

Still further exemplary, the electronic device 10 of the embodiment of the present application may include a first body 100, a second body 200, a main radiator 310, an auxiliary radiator 320, a feed source 330, and a first switching circuit 350. The second body 200 may be folded or slid with respect to the first body 100 such that the second body 200 and the first body 100 may be in an unfolded state away from each other or may be in an overlapped state at least partially overlapped; feed 330 may be used to provide excitation current; the main radiator 310 may be disposed on the first body 100 and grounded, the main radiator 310 may be electrically connected to the feed source 330, when the second body 200 and the first body 100 are in an unfolded state, the main radiator 310 may operate at a first resonance under the effect of the excitation current, the first switch circuit 350 may be electrically connected to the main radiator 310, and under the first resonance, the first switch circuit 350 has a first voltage value; the auxiliary radiator 320 is disposed on the second body 200, and when the second body 200 is in an overlapped state with the first body 100, the auxiliary radiator 320 can be coupled with the main radiator 310, and the first switch circuit 350 has a second voltage value, and the second voltage value is smaller than the first voltage value.

It will be appreciated that the first resonance may be used to support transmission of wireless signals in a first frequency band and the first switching circuit 350 may be used to adjust the electrical length of the primary radiator 310 such that the first resonance supports wireless signals in a different frequency band within the first frequency band.

It will be appreciated that when the second body 200 is in an overlapping state with the first body 100, the auxiliary radiator 320 may be coupled with the main radiator 310 and co-operate at a second resonance, which may be used to support transmission of wireless signals in a second frequency band. The first frequency band and the second frequency band may at least partially overlap.

It is understood that the main radiator 310 may overlap with a portion of the auxiliary radiator 320 when the second body 200 is in an overlapped state with the first body 100.

It is appreciated that the electrical length of the primary radiator 310 may be equal to one quarter of the corresponding wavelength of the first frequency band. The electrical length of the auxiliary radiator 320 may be equal to or slightly less than one-half of the corresponding wavelength of the first frequency band.

It will be appreciated that the electronic device 10 may further include a second switching circuit 360, the second switching circuit 360 being electrically connectable to the auxiliary radiator 320, the second switching circuit 360 being configured to adjust the electrical length of the auxiliary radiator 320 such that the second resonance supports wireless signals in different frequency bands within the second frequency band.

It will be appreciated that the electronic device 10 may also include a matching circuit 370 connected in series between the feed 330 and the primary radiator 310, the matching circuit 370 being operable to match the impedance of the feed 330 when delivering excitation current.

In the electronic device 10 of the embodiment of the present application, when the first body 100 and the second body 200 are in the unfolded state and the main radiator 310 is operated at the first resonance, the first switch circuit 350 has a larger first voltage value, and the radiation performance of the main radiator 310 is greatly affected by the loss of the first switch circuit 350; when the second body 200 and the first body 100 are in an overlapped state, the auxiliary radiator 320 may be electromagnetically coupled with the main radiator 310, and the auxiliary radiator 320 may disperse a portion of energy transferred from the feed source 330 to the main radiator 310, so that the first switch circuit 350 may have a second voltage value smaller than the first voltage value, the voltage of the first switch circuit 350 is reduced, the loss of the first switch circuit 350 is also reduced, and the radiation performance of the main radiator 310 operating at the first resonance may be greatly improved. Thus, the electronic device 10 according to the embodiment of the present application provides an innovative way to reduce the voltage of the switching circuit, and by changing the form of the electronic device 10, the voltage of the first switching circuit 350 can be reduced; meanwhile, after the voltage of the first switch circuit 350 is reduced, the loss of the first switch circuit 350 is smaller, and the radiation performance of the main radiator 310 working at the first resonance can be greatly improved.

Referring to fig. 15, fig. 15 is a schematic diagram of a seventh structure of the electronic device 10 according to the embodiment of the application, based on the structure of the electronic device 10. The first body 100 may further include a first middle frame 110, and the second body 200 may further include a second middle frame 210.

The first middle frame 110 and the second middle frame 210 may be made of a conductive material and have a certain rigidity, and the first middle frame 110 and the second middle frame 210 may provide a supporting function for an electronic device or an electronic device in the electronic device 10. The first middle frame 110 and the second middle frame 210 may be grounded and form a ground system 340. One end of the main radiator 310 may be spaced apart from the first middle frame 110, and the other end of the main radiator 310 may be connected to the first middle frame 110 and grounded. Both ends of the auxiliary radiator 320 may be spaced apart from the second middle frame 210 such that the auxiliary radiator 320 may be in a "floating state".

In the embodiment of the present application, the first middle frame 110 and the second middle frame 210 form the ground system 340, and the main radiator 310 may be connected to the first middle frame 110 and grounded through the first middle frame 110, so that the design can ensure the connection stability of the main radiator 310, and also can reduce the wiring in the grounding design.

Referring to fig. 16, fig. 16 is a schematic diagram illustrating an eighth structure of the electronic device 10 according to the embodiment of the application. The first middle frame 110 may include a first side frame 111 and a first middle plate 112, the second middle frame 210 may include a second side frame 211 and a second middle plate 212, the first side frame 111 and the second side frame 211 may form an outer frame of the electronic device 10, and the first middle plate 112 and the second middle plate 212 may provide support for electronic devices or electronic devices in the electronic device 10.

It is to be appreciated that first midplane 112 and second midplane 212 can be grounded and form ground system 340. The first frame 111 may be provided with a first slit to form a first metal branch 113 on the first frame 111, and the main radiator 310 may include the first metal branch 113, and one end of the first metal branch 113 may be connected to the first middle plate 112 to implement grounding. The second frame 211 may be provided with a second gap to form a second metal branch 213 on the second frame 211, and the auxiliary radiator 320 may include the second metal branch 213, where the second metal branch 213 may be spaced from the second middle plate 212 so that the second metal branch 213 is in a "floating" state, and the second metal branch 213 may not be grounded.

It is appreciated that the electronic device 10 may be filled with a non-conductive material between the first gap and the second gap to increase the structural strength of the first middle frame 110 and the second middle frame 210.

In the electronic device 10 according to the embodiment of the present application, the first frame 111 and the second frame 211 form the main radiator 310 and the auxiliary radiator 320 through the slits, and the main radiator 310 and the auxiliary radiator 320 do not need to occupy additional space of the electronic device 10, so that the electronic device 10 can realize a miniaturized design.

Referring again to fig. 15 and 16, the electronic device 10 may further include a flexible display screen 500, a circuit board 600, and a power supply 700.

The flexible display screen 500 may form a display surface of the electronic device 10 for displaying information such as images, text, and the like. The flexible display screen 500 may include a Liquid crystal display (Liquid CRYSTAL DISPLAY, LCD) or an Organic Light-Emitting Diode (OLED) display, etc. The flexible display screen 500 may be connected to the first body 100 and the second body 200 and may be folded as the first body 100 and the second body 200 are folded.

For example, one end of the flexible display screen 500 may be connected to the first body 100, and the other end of the flexible display screen 500 may be connected to the second body 200. When the first body 100 and the second body 200 are in the unfolded state, the flexible display screen 500 may be unfolded along with the first body 100 and the second body 200 such that both ends of the flexible display screen 500 may be in the same plane, and the flexible display screen 500 is in the unfolded state. When the first body 100 and the second body 200 are in the overlapped state, the flexible display screen 500 may be folded as the first body 100 and the second body 200 are folded, so that both ends of the flexible display screen 500 may be folded close to each other or completely close to each other. It will be appreciated that in the embodiment shown in fig. 5 and 6, the electronic device 10 may be provided with a display screen on one of the first body 100 and the second body 200, which may be a flexible screen or a non-flexible screen. The display screen in this embodiment may not be morphologically changed with the sliding of the first body 100 and the second body 200.

The circuit board 600 may be mounted on the first body 100 or the second body 200, and the circuit board 600 may be a motherboard of the electronic device 10. The circuit board 600 may have a processor integrated thereon, and may further have one or more of a headset interface, an acceleration sensor, a gyroscope, a motor, and other functional components integrated thereon. The feed source 330, the first switch circuit 350, the second switch circuit 360, and the matching circuit 370 may be disposed on the circuit board 600 to be controlled by a processor on the circuit board 600.

The power supply 700 may be mounted on the first body 100 or the second body 200. Meanwhile, the power supply 700 may be electrically connected to the circuit board 600 to enable the power supply 700 to supply power to the electronic device 10. The circuit board 600 may have a power supply 700 management circuit disposed thereon. The power supply 700 management circuitry is used to distribute the voltage provided by the power supply 700 to the various electronic devices in the electronic device 10.

It should be understood that the foregoing is merely an exemplary example of the electronic device 10, and the electronic device 10 according to the embodiments of the present application may further include a camera, a sensor, an electroacoustic conversion device, etc., and these components may be referred to the description in the related art and are not described herein.

It should be understood that in the description of the present application, terms such as "first," "second," and the like are used merely to distinguish between similar objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.

Based on the above-mentioned structure of the electronic device 10, please refer to fig. 17, fig. 17 is a flow chart of a control method according to an embodiment of the present application. The control method of the embodiment of the present application may be applied to an electronic device 10, where the electronic device 10 includes a first body 100, a second body 200, a main radiator 310, an auxiliary radiator 320, a feed source 330, and a first switching circuit 350. The auxiliary radiator 320 is disposed on the second body 200, the main radiator 310 is disposed on the first body 100 and grounded, the feed source 330 is electrically connected to the main radiator 310 and can provide excitation current, and the first switch circuit 350 is electrically connected to the main radiator 310. The control method of the embodiment of the application comprises the following steps:

In 101, the second body 200 and the first body 100 are controlled to be far away from each other and in an unfolding state, the main radiator 310 is controlled to work at a first resonance under the action of exciting current, and the first switch circuit 350 has a first voltage value under the first resonance;

The first body 100 and the second body 200 may be folded or slid toward each other, and the first body 100 and the second body 200 may be switched between an overlapped state where they are at least partially overlapped and an unfolded state where they are far away from each other during the folding or sliding operation.

When the first body 100 and the second body 200 are in the unfolded state, the main radiator 310 and the auxiliary radiator 320 are far away from each other and do not overlap, and electromagnetic coupling is not generated between them, and at this time, the main radiator 310 can generate the first resonance alone and support the first frequency band under the excitation of the excitation current provided by the feed source 330. Meanwhile, the first switching circuit 350 may have a larger first voltage value, and the loss of the first switching circuit 350 may greatly affect the radiation performance of the main radiator 310.

At 102, the second body 200 is controlled to fold or slide relative to the first body 100 such that the second body 200 at least partially overlaps the first body 100 and is in an overlapping state, the auxiliary radiator 320 is controlled to be coupled with the main radiator 310, and the first switch has a second voltage value, where the second voltage value is smaller than the first voltage value.

When the first body 100 and the second body 200 are in the overlapped state, the excitation current provided by the feed source 330 may be electromagnetically coupled to the auxiliary radiator 320 through the main radiator 310, so that the auxiliary radiator 320 may disperse a portion of energy transferred to the main radiator 310 by the feed source 330, the first switching circuit 350 may have a second voltage value smaller than the first voltage value, the voltage of the first switching circuit 350 is reduced, and the loss of the first switching circuit 350 is also reduced, so that the radiation performance of the main radiator 310 operating at the first resonance may be greatly improved.

In some embodiments, the first resonance is used to support transmission of wireless signals in the first frequency band. Controlling the coupling of the auxiliary radiator 320 with the main radiator 310 includes: the auxiliary radiator 320 is controlled to be coupled with the main radiator 310 and to operate together at the second resonance, and the electric length of the auxiliary radiator 320 is equal to or slightly less than one half of the corresponding wavelength of the first frequency band.

In some embodiments, the electronic device 10 further includes a ground system 340. Controlling the primary radiator 310 to operate at a first resonance under the influence of an excitation current includes: controlling the main radiator 310 to operate at the first resonance under the action of the excitation current, wherein the current distribution on the excitation current ground system 340 includes a first longitudinal mode current I2 along the extension direction of the main radiator 310 and a first transverse mode current I1 perpendicular to the extension direction of the main radiator 310; controlling the coupling of the auxiliary radiator 320 with the main radiator 310 includes: the auxiliary radiator 320 is controlled to couple with the main radiator 310 and operate together at a second resonance, where the current distribution of the excitation current over the ground system 340 includes a second longitudinal mode current I3 along the extension direction of the auxiliary radiator 320, a third longitudinal mode current I5 along the extension direction of the main radiator 310, and a second transverse mode current I4 perpendicular to the extension direction of the main radiator 310.

According to the control method of the embodiment of the application, the first body 100 and the second body 200 of the electronic device 10 are controlled to be in an overlapped state, and the auxiliary radiator 320 is electromagnetically coupled with the main radiator 310, so that the first switch circuit 350 can have a smaller second voltage value, on one hand, the embodiment of the application can reduce the voltage of the first switch circuit 350 by changing the form of the electronic device 10, and the embodiment of the application provides an innovative way for reducing the voltage of the switch circuit; on the other hand, when the voltage of the first switch circuit 350 is reduced, the loss of the first switch circuit 350 is smaller, and the radiation performance of the main radiator 310 operating at the first resonance can be greatly improved.

It should be noted that the control method of the embodiment of the present application and the electronic device 10 of the foregoing embodiment belong to different subjects under the same inventive concept. The specific implementation of each operation in the control method can be referred to the previous embodiments, and will not be repeated here. In addition, in the foregoing embodiments, the descriptions of the embodiments are focused on, and for the parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.

The electronic device and the control method provided by the embodiment of the application are described in detail. Specific examples are set forth herein to illustrate the principles and embodiments of the present application and are provided to aid in the understanding of the present application. Meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.

Claims

1. An electronic device, comprising:

a first body;

A feed source for providing an excitation current;

2. The electronic device of claim 1, wherein the second resonance is configured to support transmission of wireless signals in a second frequency band, the second frequency band at least partially overlapping the first frequency band.

3. The electronic device of claim 1, wherein the primary radiator overlaps a portion of the secondary radiator when in the overlapped state.

4. The electronic device of claim 1, wherein the electrical length of the primary radiator is equal to one quarter of the corresponding wavelength of the first frequency band.

5. The electronic device of claim 1, further comprising a ground system, wherein the primary radiator is electrically connected to the ground system and is grounded;

When the main radiator supports the first resonance, the current distribution of the excitation current on the ground system comprises a first longitudinal mode current along the extending direction of the main radiator and a first transverse mode current perpendicular to the extending direction of the main radiator;

When the main radiator and the auxiliary radiator support the second resonance together, the current distribution of the excitation current on the ground system comprises a second longitudinal mode current along the extension direction of the auxiliary radiator, a third longitudinal mode current along the extension direction of the main radiator and a second transverse mode current perpendicular to the extension direction of the main radiator.

6. The electronic device of any one of claims 1-5, further comprising:

a first switching circuit electrically connected to the main radiator; wherein,

When the main radiator is in the unfolding state and works at first resonance, the first switch circuit has a first voltage value;

the first switching circuit has a second voltage value when in the overlapping state and the auxiliary radiator is coupled with the main radiator, the second voltage value being less than the first voltage value.

7. The electronic device of claim 6, wherein the first switching circuit is configured to adjust an electrical length of the primary radiator such that the first resonance supports wireless signals in different frequency bands within the first frequency band.

8. The electronic device of claim 7, further comprising:

And the second switch circuit is electrically connected with the auxiliary radiator and is used for adjusting the electric length of the auxiliary radiator so that the second resonance supports wireless signals of different frequency bands in a second frequency band.

9. The electronic device of any one of claims 1-5, further comprising:

The matching circuit is connected in series between the feed source and the main radiator and is used for matching the impedance of the feed source when the excitation current is transmitted.

10. An electronic device, comprising:

a first body;

A feed source for providing an excitation current;

11. The electronic device of claim 10, wherein the first resonance is configured to support transmission of wireless signals in a first frequency band and the second resonance is configured to support transmission of wireless signals in a second frequency band, the second frequency band and the first frequency band at least partially overlapping.

12. The electronic device of claim 10, wherein the first resonance is configured to support transmission of wireless signals in a first frequency band, and wherein the primary radiator has an electrical length equal to one quarter of a corresponding wavelength in the first frequency band;

The second resonance is used for supporting the transmission of wireless signals in a second frequency band, and the electric length of the auxiliary radiator is equal to or slightly smaller than one half of the corresponding wavelength in the first frequency band.

13. The electronic device of any one of claims 10 to 12, further comprising:

a first switching circuit electrically connected to the main radiator; wherein,

14. An electronic device, comprising:

a first body;

A feed source for providing an excitation current;

15. The electronic device of claim 14, wherein the first resonance is configured to support transmission of wireless signals in a first frequency band, and wherein the first switching circuit is configured to adjust an electrical length of the primary radiator such that the first resonance supports wireless signals in a different frequency band within the first frequency band.

16. The electronic device of claim 14, wherein the secondary radiator is coupled to the primary radiator and cooperates with a second resonance when in an overlapping state, the second resonance being configured to support transmission of wireless signals in a second frequency band.

17. The electronic device of claim 16, wherein the first resonance is configured to support transmission of wireless signals in a first frequency band, the primary radiator has an electrical length equal to one-fourth of a corresponding wavelength in the first frequency band, and the secondary radiator has an electrical length equal to or slightly less than one-half of the corresponding wavelength in the first frequency band.

18. The control method is characterized by being applied to electronic equipment, wherein the electronic equipment comprises a first body, a second body, a feed source, a main radiator, a first switch circuit and an auxiliary radiator; the auxiliary radiator is arranged on the second body, the main radiator is arranged on the first body and grounded, the first switch circuit is electrically connected with the main radiator, and the feed source is electrically connected with the main radiator and is used for providing excitation current; the control method comprises the following steps:

19. The control method according to claim 18, wherein the first resonance is used to support transmission of wireless signals in a first frequency band; the controlling the coupling of the auxiliary radiator with the main radiator includes:

And controlling the auxiliary radiator to be coupled with the main radiator and work together at second resonance, wherein the electric length of the auxiliary radiator is equal to or slightly smaller than one half of the corresponding wavelength of the first frequency band.

20. The control method of claim 18, wherein the electronic device further comprises a ground system; the controlling the main radiator to operate at a first resonance under the action of the excitation current comprises:

controlling the main radiator to work at a first resonance under the action of the excitation current, and enabling the current distribution of the excitation current on the ground system to comprise a first longitudinal mode current along the extending direction of the main radiator and a first transverse mode current perpendicular to the extending direction of the main radiator;

the controlling the coupling of the auxiliary radiator with the main radiator includes:

And controlling the auxiliary radiator and the main radiator to be coupled and work together at a second resonance, and enabling the current distribution of the exciting current on the ground system to comprise a second longitudinal mode current along the extending direction of the auxiliary radiator, a third longitudinal mode current along the extending direction of the main radiator and a second transverse mode current perpendicular to the extending direction of the main radiator.