CN117559124A

CN117559124A - Electronic equipment

Info

Publication number: CN117559124A
Application number: CN202311620699.7A
Authority: CN
Inventors: 任道羽; 唐海军
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2023-11-28
Filing date: 2023-11-28
Publication date: 2024-02-13

Abstract

The application provides electronic equipment, wherein a first radiator comprises a first end, a grounding part, a second end and a first feed part which are sequentially arranged; one end of the inductive load is electrically connected to the grounding part, and the other end of the inductive load is grounded; the first feed source is electrically connected to the first feed portion, and the first feed source is used for exciting the first antenna to form a first resonance mode and a second resonance mode to jointly support the first wireless signal, wherein the center frequency of the second resonance mode is larger than that of the first resonance mode. Based on the above, the electronic equipment has better anti-hand holding performance.

Description

Electronic equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to an electronic device.

Background

With the development of communication technology, electronic devices such as smartphones are capable of realizing more and more functions, and communication modes of the electronic devices are also more diversified. Each communication mode requires a corresponding antenna to support.

However, depending on the usage scenario, the performance of the antenna tends to vary. For example, when a user holds or shields the antenna with his or her hand, the performance of the antenna tends to be degraded. Therefore, it is desirable to provide an antenna design that still maintains superior antenna performance in a hand-held state.

Disclosure of Invention

The application provides electronic equipment, which still has better antenna performance under the handheld state.

The application provides an electronic device, including a first antenna, the first antenna includes:

the first radiator comprises a first end, a grounding part and a second end which are sequentially arranged, and further comprises a first feed part, wherein the first feed part is arranged at the first end or between the first end and the grounding part;

one end of the inductive load is electrically connected to the grounding part, and the other end of the inductive load is grounded;

the first feed source is electrically connected to the first feed portion and is used for exciting the first antenna to form a first resonance mode and a second resonance mode to jointly support a first wireless signal, and the center frequency of the second resonance mode is larger than that of the first resonance mode.

According to the electronic equipment, the first radiator of the first antenna is grounded through the inductive load, the first feed source can excite the first antenna to form the first resonant mode and the second resonant mode, and under the action of the two resonant modes, on one hand, the bandwidth of a wireless signal supported by the first antenna is wider, and the bandwidth of the first antenna can be widened; on the other hand, under the action of the two resonance modes, the overall antenna efficiency of the first antenna between the whole bands can be improved, meanwhile, the center frequency of the second resonance mode is larger than that of the first resonance mode, and the second resonance mode can improve the antenna efficiency of wireless signals supported by the first resonance mode; in addition, due to the lifting effect of the second resonance mode, the antenna of the first antenna has lower amplitude reduction even in the hand holding state, and the first antenna has better hand holding resistance.

Drawings

In order to more clearly illustrate the technical solutions in 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 obvious that the drawings in the following description are only some embodiments of the present 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 structural diagram of an electronic device according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a second structure of an electronic device according to an embodiment of the present application.

Fig. 3 is a schematic diagram showing comparison of antenna efficiency of the first antenna of the electronic device shown in fig. 1 and the first antenna of the electronic device shown in fig. 2 in a free space state.

Fig. 4 is a schematic diagram showing comparison of antenna efficiency between the first antenna of the electronic device shown in fig. 1 and the first antenna of the electronic device shown in fig. 2 in a handheld state.

Fig. 5 is a schematic diagram of a first current distribution of the electronic device shown in fig. 1.

Fig. 6 is a schematic diagram of a second current distribution of the electronic device shown in fig. 1.

Fig. 7 is a schematic diagram of a current distribution of the electronic device shown in fig. 2.

Fig. 8 is a schematic diagram of a third structure of an electronic device according to an embodiment of the present application.

Fig. 9 is a schematic diagram of a fourth structure of an electronic device according to an embodiment of the present application.

Fig. 10 is a schematic diagram of a fifth structure of an electronic device according to an embodiment of the present application.

Fig. 11 is a schematic diagram of a sixth structure of an electronic device according to an embodiment of the present application.

Fig. 12 is a schematic diagram of S parameters when the first antenna of the electronic device shown in fig. 11 supports wireless signals in different frequency bands.

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

Fig. 14 is an eighth structural schematic diagram of an electronic device according to an embodiment of the present application.

Fig. 15 is a ninth structural schematic diagram of an electronic device according to an embodiment of the present application.

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

Fig. 17 is an eleventh structural schematic diagram of an electronic device according to an embodiment of the present application.

Fig. 18 is a twelfth structural schematic diagram of an electronic device according to an embodiment of the present application.

Fig. 19 is a schematic view of a thirteenth structure of an electronic device 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 19 in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The embodiment of the application provides an electronic device 10, where the electronic device 10 may be a smart phone, a tablet computer, or other devices, 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, fig. 1 is a schematic diagram of a first structure of an electronic device 10 according to an embodiment of the disclosure. The electronic device 10 includes a first antenna 100, the first antenna 100 including a first radiator 110, an inductive load 120, and a first feed 130.

The first radiator 110 includes a first end 111, a grounding portion 112, and a second end 113 sequentially arranged, the second end 113 may be a free end or a terminal of the first radiator 110, one end of the inductive load 120 is electrically connected to the grounding portion 112, and the other end of the inductive load 120 is electrically connected to the ground plane 300 and grounded. The first radiator 110 may further include a first power feeding portion 114, and the first power feeding portion 114 may be disposed between the first end 111 and the ground portion 112, or the first power feeding portion 114 may be disposed at the first end 111 such that the first end 111 coincides with the first power feeding portion 114 and the first end 111 is a power feeding end of the first radiator 110. The first feed 130 is electrically connected to the first feeding portion 114, and the first feed 130 can provide a first excitation signal to excite the first antenna 100 to form a first resonant mode and a second resonant mode, and the first antenna 100 can support the first wireless signal under the action of the first resonant mode and the second resonant mode. The first resonant mode may be a main resonant mode when the first antenna 100 supports the first wireless signal, and the second resonant mode may be an auxiliary resonant mode when the first antenna 100 supports the first wireless signal, where a center frequency of the second resonant mode is greater than a center frequency of the first resonant mode.

It is understood that the first feed 130 may be a signal source for the electronic device 10. The first feed 130 may convert the excitation signal or bound electromagnetic wave into radiated electromagnetic energy to excite the first radiator 110 to support the transmission of wireless signals. Meanwhile, the first radiator 110 may capture and bind electromagnetic waves in the free space and transmit the electromagnetic waves to the first feed 130 to form a current signal, so that the first radiator 110 may support the reception of wireless signals.

It is understood that the first radiator 110 may be, but is not limited to, a straight strip, a bent shape, or other shapes. The setting position of the grounding portion 112 of the first radiator 110 may be set according to the frequency of the first resonant mode, so that the electrical length of the radiating section between the first end 111 and the grounding portion 112 may support the wireless signal corresponding to the first resonant mode. Wherein, the electric length refers to the equivalent length when the radiator radiates a signal. The electrical length L0 of the radiator satisfies the following formula: l0=l1× (a/b). Where L1 is the physical length of the radiator, a is the time when the wireless signal (e.g., the first wireless signal) of the target frequency band is transmitted in the radiator, and b is the time when the wireless signal (e.g., the first wireless signal) of the target frequency band is transmitted in free space. In the embodiment of the present application, when the center frequency corresponding to the first resonant mode is 780MHz, the electrical length of the radiating section between the ground portion 112 and the first end 111 may correspond to a wireless signal supporting a frequency range of 780mhz±30 MHz.

It is understood that the ground plane 300 may form a common ground for the electronic device 10. The ground plane 300 may be a plane or structure with zero potential. Wherein the ground plane 300 may be formed by conductors, printed wiring, or metallic printed layers, etc. in the electronic device 10; the ground plane 300 may be formed on a motherboard, platelet, or other carrier board of the electronic device 10; alternatively, the ground plane 300 may be formed on the housing of the electronic device 10. The specific placement of the ground plane 300 in the embodiments of the present application is not limited.

It is understood that the inductive load 120 is a circuit or structure electrically connected between the ground 112 and the ground plane 300, which allows the excitation current to pass through, and is equivalent to an inductive characteristic with respect to the first excitation signal provided by the first feed 130. When the grounding portion 112 is electrically connected to the ground plane 300 through the inductive load 120 to achieve grounding, the first antenna 100 can excite the first resonant mode generating the main resonant mode and the second resonant mode generating the auxiliary resonant mode, and the first antenna 100 has better antenna performance under the action of the two resonant modes.

Specifically, please refer to fig. 1 in combination with fig. 2, fig. 2 is a schematic diagram of a second structure of the electronic device 10 according to an embodiment of the present application. The difference between the first antenna 100 shown in fig. 2 and the first antenna 100 shown in fig. 1 is that the ground portion 112 of the first antenna 100 shown in fig. 2 is not grounded by the inductive load 120, the ground portion 112 of the first antenna 100 shown in fig. 2 corresponds to direct ground return, and the inductance value of the ground return path formed between the ground portion 112 of the first antenna 100 and the ground plane 300 shown in fig. 2 is much smaller than the inductance value of the ground return path formed between the ground portion 112 of the first antenna 100, the inductive load 120 and the ground plane 300 shown in fig. 1. At this time, referring to fig. 3, fig. 3 is a schematic diagram showing a comparison of antenna efficiency of the first antenna 100 of the electronic device 10 shown in fig. 1 and the first antenna 100 of the electronic device 10 shown in fig. 2 in a free space state, and a curve S1 in fig. 3 is an antenna efficiency curve of the first antenna 100 shown in fig. 1 in a free space state, and a curve S2 is an antenna efficiency curve of the first antenna 100 shown in fig. 2 in a free space state. The free space state refers to a state in which the electronic device 10 or the first antenna 100 is not shielded by the user's hand or other obstacle. As can be seen from the region a of the curve S2, the first antenna 100 shown in fig. 2 can form only one resonant mode. As can be seen from the region B and the region C of the curve S1, the first antenna 100 shown in fig. 1 can form two resonant modes, wherein the region B can correspond to a first resonant mode and the region C can correspond to a second resonant mode. Comparing the curve S1 and the curve S2, the second resonance mode corresponding to the C region is mainly formed by the excitation of the inductive load 120 in the ground, and under the action of the second resonance mode, the antenna efficiency of the first antenna 100 grounded through the inductive load 120 shown in fig. 1 of the present application is improved by about 1.5dB compared with the antenna efficiency of the first antenna 100 directly grounded in fig. 2.

Referring to fig. 4, fig. 4 is a schematic diagram showing comparison of antenna efficiency between the first antenna 100 of the electronic device 10 shown in fig. 1 and the first antenna 100 of the electronic device 10 shown in fig. 2 in a hand-held state. In fig. 4, a curve S3 is an antenna efficiency curve of the first antenna 100 shown in fig. 1 in a hand-held state, and a curve S4 is an antenna efficiency curve of the first antenna 100 shown in fig. 2 in a hand-held state. The hand-held state refers to a state in which the electronic device 10 or the first antenna 100 is held or blocked by the hand of the user. As can be seen by combining fig. 3 and comparing the curves S1 and S3 and comparing the curves S2 and S4, the antenna efficiency of the first antenna 100 grounded through the inductive load 120 shown in fig. 1 in the hand-held state is significantly reduced compared with the antenna efficiency of the first antenna 100 directly grounded in the hand-held state shown in fig. 2, and the more closely to the frequency range corresponding to the second resonance mode, the reduced amplitude of the first antenna 100 shown in fig. 1 is further reduced compared with the reduced amplitude of the second antenna 200 shown in fig. 2, so that the reduced amplitude of the antenna efficiency of the first antenna 100 grounded through the inductive load 120 shown in fig. 1 in the present application is smaller, and the anti-hand-holding performance of the first antenna 100 shown in fig. 1 is better.

It will be appreciated that the center frequency of the first resonant mode and the center frequency of the second resonant mode may be designed to further enhance the efficiency enhancing effect of the second resonant mode on the first resonant mode antenna. For example, when the first resonant mode supports a low frequency signal, the difference between the center frequency of the second resonant mode and the center frequency of the first resonant mode is in the range of 100MHz to 500MHz (including 100MHz and 500 MHz). At this time, on the antenna efficiency curve, the resonance peak value of the second resonance mode is not far to the right of the resonance peak value of the first resonance mode, so that the resonance peak value of the second resonance mode can play a role in lifting the resonance peak value of the first resonance mode and enable the second resonance mode to lift the antenna efficiency of the first resonance mode, and meanwhile, other clutter signals are not easy to be introduced into the second resonance mode. It should be noted that, when the first resonant mode supports signals in other frequency bands, the difference between the center frequency of the second resonant mode and the center frequency of the first resonant mode may be in other frequency ranges. The difference in center frequencies of the first two resonance modes of the present application is not particularly limited.

It is understood that the first wireless signal supported by the first antenna 100 under the combined action of the first resonant mode and the second resonant mode may be, but not limited to, a signal such as a wireless fidelity (Wireless Fidelity, abbreviated as Wi-Fi) signal, a global positioning system (Global Positioning System, abbreviated as GPS) signal, a third Generation mobile communication technology (3 rd-Generation, abbreviated as 3G), a fourth Generation mobile communication technology (4 th-Generation, abbreviated as 4G), a fifth Generation mobile communication technology (5 th-Generation, abbreviated as 5G), a near field communication (Near field communication, abbreviated as NFC) signal, a Bluetooth (BT) signal, an Ultra WideBand (UWB) signal, and the like. The wireless signals supported by the first antenna 100 are not specifically limited in the embodiments of the present application.

Based on this, the first radiator 110 of the first antenna 100 of the electronic device 10 according to the embodiment of the present application is grounded through the inductive load 120, and the first feed source 130 may excite the first antenna 100 to form a first resonant mode and a second resonant mode, and under the action of the two resonant modes, on one hand, the bandwidth of the wireless signal supported by the first antenna 100 is wider, and the bandwidth of the first antenna 100 may be widened; on the other hand, under the action of the two resonance modes, the overall antenna efficiency of the first antenna 100 between the whole bands can be improved, meanwhile, the center frequency of the second resonance mode is larger than that of the first resonance mode, and the second resonance mode can improve the antenna efficiency of the wireless signals supported by the first resonance mode; also, since the first antenna can form two resonance modes, this makes the antenna efficiency of the first antenna 100 reduced even in a hand-held state, and the first antenna 100 has superior hand-holding resistance.

When the ground portion 112 is located in a middle area of the first radiator 110, the first antenna 100 may be a structure similar to a T-shaped antenna (T-shape antenna), and the middle area refers to a ratio of a length of the first radiating section 101 between the ground portion 112 and the first end 111 to a length of the second radiating section 102 between the ground portion 112 and the second end 113 being between one third and three, that is, a ratio of the length of the first radiating section 101 to the length of the second radiating section 102 being greater than or equal to one third and less than or equal to three. At this time, the first resonant current generated by the excitation of the first resonant Mode is opposite in flow direction on the first Radiating section 101 between the first end 111 of the first radiator 110 and the ground 112 and the second Radiating section 102 between the second end 113 of the first radiator 110 and the ground 112, and the first resonant Mode may be a Radiating Mode (RM) of the T-shape antenna structure. The second resonant current generated by the excitation of the second resonant Mode flows in the same direction on the first radiating section 101 and the second radiating section 102, and the second resonant Mode may be a Balanced Mode (BM) of the T-shape antenna structure.

Referring to fig. 5, fig. 5 is a schematic diagram illustrating a first current distribution of the electronic device 10 shown in fig. 1, in which, in an alternating current half-wave period, a first resonant mode may form a first resonant current I1 flowing from the first end 111 toward the ground 112 and flowing from the second end 113 toward the ground 112 on the first radiator 110, the first resonant current I1 may be in a current reverse flow distribution pattern on the first radiating section 101 and the second radiating section 102 of the first radiator 110, and the first resonant mode may be a main radiating mode of the first antenna 100. Of course, since the resonant current is an ac signal, the first resonant current I1 may exhibit a current distribution opposite to that of fig. 5 in another ac half-wave period, for example, in another ac half-wave period, the first resonant current I1 may flow from the grounding portion 112 on the first radiator 110 toward the first end 111 and the second end 113, respectively, and then the current flow directions of the first resonant current I1 on the first radiating section 101 and the second radiating section 102 of the first radiator 110 are also opposite. The first resonant current I1 is similar to the current distribution of the radiating mode of the T-shaped antenna, so that the first resonant mode may be the radiating mode of the T-shaped antenna.

Referring to fig. 6, fig. 6 is a schematic diagram illustrating a second current distribution of the electronic device 10 shown in fig. 1, in an ac half-wave period, the second resonant mode may form a second resonant current I2 flowing from the first end 111 toward the second end 113 on the first radiator 110, and the second resonant current I2 may be in a current homodromous distribution form on the first radiating section 101 and the second radiating section 102 of the first radiator 110, so that the second resonant mode may improve the antenna performance of the first resonant mode. Of course, during another alternating half-wave period, the second resonant current I2 may flow from the second end 113 towards the first end 111 on the first radiator 110, where the second resonant current also flows in the same direction in the first radiating section 101 and the second radiating section 102. The second resonant current I2 is similar to the current distribution of the balanced mode of the T-antenna such that the second resonant mode may be the balanced mode of the T-antenna. It should be noted that, when the first resonant current I1 exhibits the current distribution shown in fig. 5, the second resonant current I2 may exhibit the current distribution shown in fig. 6 or the current distribution of another ac half-wave period opposite to fig. 6. Similarly, when the first resonant current I1 exhibits a current distribution of another ac half-wave period as shown in fig. 5, the second resonant current I2 may also exhibit a current distribution as shown in fig. 6 or a current distribution of another ac half-wave period opposite to that of fig. 6.

In contrast, referring to fig. 7, fig. 7 is a schematic current distribution diagram of the electronic device 10 shown in fig. 2, when the first antenna 100 is directly grounded without passing through the inductive load 120, the electronic device 10 can only excite the third resonant mode shown in the region a of fig. 3, and the third resonant mode can excite the third resonant current I3 flowing from the first end 111 to the ground portion 112 in one ac half-wave period, and the third resonant current I3 can excite the current distribution flowing from the ground portion 112 to the first end 111 opposite to fig. 7 in another ac half-wave period. Obviously, the distribution state of the third resonant current I3 is different from the distribution states of the first resonant current I1 and the second resonant current I2, so that the antenna efficiency when the first antenna 100 directly returns to the ground without passing through the inductive load 120 is significantly weaker than the antenna efficiency when the first antenna 100 returns to the ground with passing through the inductive load 120.

The above is only an exemplary description of the currents in the first, second, and third resonance modes, and the resonance modes may have other current distributions. In the present application, all schemes of resonant modes and current distribution that can excite the first radiator 110 and the inductive load 120 to form two resonant modes, and the center frequency of the auxiliary resonant mode is greater than that of the main resonant mode are within the protection scope of the present application.

Referring to fig. 8, fig. 8 is a schematic diagram of a third structure of the electronic device 10 according to the embodiment of the present application. Inductive load 120 may include a first ground 121, a conductive metal 122, and a second ground 123.

One end of the first grounding member 121 is connected to the grounding portion 112 and electrically connected thereto, one end of the conductive metal member 122 is connected to the other end of the first grounding member 121 and electrically connected thereto, one end of the second grounding member 123 is connected to the other end of the conductive metal member 122 and electrically connected thereto, and the other end of the second grounding member 123 is connected to the ground plane 300 and electrically connected thereto. Thus, a ground return path having a certain impedance may be formed between the ground portion 112, the first ground member 121, the conductive metal member 122, the second ground member 123, and the ground plane 300.

As shown in fig. 8, the first and second ground members 121 and 123 may each be a ground screw. The grounding screw may be a screw structure that serves a fixing function in the overall layout of the electronic device 10. For example, the functional module of the electronic device 10 may be fixedly connected to the housing (for example, a middle frame 600 later) of the electronic device 10 through the grounding screw, where the first grounding member 121 and the second grounding member 123 in the embodiment of the present application implement grounding through the grounding screw, and the grounding screw may perform a grounding function and a fixing function, and the grounding screw may perform functional multiplexing. At this time, the conductive metal piece 122 may be a conductive steel piece, the conductive steel piece may be equivalent to an inductance characteristic for the excitation signal provided by the first feed source 130, and the ground return path may have an inductance characteristic under the action of the conductive steel piece.

It will be appreciated that the distance between the first grounding member 121 and the second grounding member 123 may be adjusted to adjust the length of the conductive metal sheet, so as to adjust the inductance value of the inductive load 120 formed by the first grounding member 121, the conductive metal member 122 and the second grounding member 123. When the inductance value of the inductive load 120 changes, the center frequencies of the first and second resonance modes also change, and particularly the center frequency of the second resonance mode changes. For example, the distance between the first grounding element 121 and the second grounding element 123 may be adjusted, and the length of the conductive metal sheet may be adjusted so that the equivalent inductance value of the conductive metal sheet is about 1 nanohenry to 2 nanohenry, where if the first resonant mode supports the low-frequency signal, the difference between the center frequency of the second resonant mode and the center frequency of the first resonant mode may be in the range of 100MHz to 500 MHz.

It can be understood that the first grounding element 121 and the second grounding element 123 may be grounding spring plates, the conductive metal element 122 or the conductive steel sheet may be connected to the grounding portion 112 through one grounding spring plate and electrically connected to the grounding portion 112 through another grounding spring plate, and the conductive metal element 122 or the conductive steel sheet may be connected to the grounding portion 112 and electrically connected to the grounding portion through another grounding spring plate. Of course, the first grounding member 121 and the second grounding member 123 may have other structures, for example, one of the grounding members may be a grounding screw and the other grounding member may be a grounding spring. The conductive metal piece 122 may also be other structures, such as, but not limited to, a conductive copper sheet.

Referring to fig. 8 in combination with fig. 9, fig. 9 is a schematic diagram of a fourth structure of the electronic device 10 according to the embodiment of the present application. Inductive load 120 may also multiplex other structures of electronic device 10. The electronic device 10 further includes an acoustic output device including a support pad 124, where the conductive metal member 122 may be the support pad 124, and the support pad 124 may be used as a carrier for internal devices of the acoustic output device, or may be used as a ground for the first radiator 110, where the support pad 124 may be reused.

It will be appreciated that the acoustic output device may be, but is not limited to, a speaker or microphone. The acoustic output device may include a voice coil assembly, a diaphragm assembly, a magnet assembly, and a spider assembly, the spider spacer 124 being a conductive structure, the spider spacer 124 may be part of the spider assembly. The material, shape, size, etc. of the support pad 124 may be designed so that the equivalent inductance value of the ground return path formed by the support pad 124 and the first grounding element 121, the second grounding element 123 meets the requirement. For example, the embodiment of the present application multiplexes the support pad 124 as the inductive load 120 of the first radiator 110 and implements grounding, so that the equivalent inductance value of the inductive load 120 is smaller, for example, the equivalent inductance value of the inductive load 120 at this time may be 1 nanohenry.

It will be appreciated that in the present embodiment, as shown in fig. 9, the first grounding member 121 may be a grounding screw by which the acoustic output device may be fixed to the housing of the electronic apparatus 10. The second grounding member 123 may be a grounding spring, and the bracket pad 124 may be connected to and electrically connected to the ground plane 300 through the grounding spring, and at this time, the grounding screw and the bracket pad 124 are multiplexed, so that the production cost of the electronic device 10 may be reduced.

The inductive load 120 of the embodiment of the present application includes the first grounding element 121, the conductive metal element 122 and the second grounding element 123, on one hand, the first grounding element 121, the conductive metal element 122 and the second grounding element 123 may form a ground return path with a certain impedance so that the first antenna 100 may generate the first resonant mode and the second resonant mode, thereby improving the efficiency of the first antenna 100; on the other hand, the first grounding member 121, the conductive metal member 122 and the second grounding member 123 can be directly fixed inside the electronic device 10 without a small board or a carrier board, so that the electronic device 10 of the present application does not need to provide a small board or a carrier board at the grounding portion 112 of the first radiator 110, which can save the production cost of the electronic device 10, and reduce the space occupied by the small board or the carrier board, so that the electronic device 10 is easier to implement a miniaturized design.

Referring to fig. 10, fig. 10 is a schematic diagram of a fifth structure of the electronic device 10 according to the embodiment of the present application. The inductive load 120 of the first antenna 100 may also include an inductive module 125.

One end of the inductance module 125 is electrically connected to the grounding portion 112 of the first radiator 110, and the other end of the inductance module 125 is grounded. Where the inductor module 125 may include at least one or more inductor elements, when the inductor module 125 includes a plurality of inductor elements, the plurality of inductor elements may be connected in series with each other, in parallel with each other, or some of the inductor elements may be connected in series and in parallel with another portion of the inductor elements.

It is understood that, as shown in fig. 10, the electronic device 10 may further include a first carrier board 410, and the first carrier board 410 may be a PCB board. The first carrier plate 410 may carry the inductance module 125. The first carrier 410 may be, but not limited to, a small board of the electronic device 10, the first carrier 410 may have a circuit structure formed thereon, the inductance module 125 may be a circuit structure formed on the first carrier 410, and the inductance module 125 may also be a circuit module fixed on the first carrier 410. The inductance module 125 may be electrically connected to the ground 112 and the ground plane 300 through etched circuits, pads, contacts, etc. on the first carrier 410.

It can be understood that, in comparison with the electronic device 10 shown in fig. 10 and fig. 8, fig. 9, and fig. 10, the electronic device 10 shown in fig. 8 and fig. 9 uses the conductive steel sheet and the bracket pad 124 as a part of the inductive load 120, and the electronic device 10 does not need to be provided with the first carrier plate 410. That is, the electronic device 10 shown in fig. 8 and 9 reduces the carrier plate structure compared to the electronic device 10 shown in fig. 10, so that the electronic device 10 shown in fig. 8 and 9 can save the production cost of the electronic device 10.

Referring to fig. 11, fig. 11 is a schematic diagram of a sixth structure of an electronic device 10 according to an embodiment of the present application. The first antenna 100 may further include at least one of a matching circuit and a switching circuit.

The matching circuit, for example, the first matching circuit 140 is electrically connected between the first feed 130 and the first end 111, and the first matching circuit 140 is used for performing impedance matching adjustment on the excitation signal provided by the first feed 130. The impedance refers to an impedance acting as a barrier to an excitation current in a circuit, and when the internal resistance of the first feed 130 is equal to the characteristic impedance of the transmission line and the phase is the same, or the characteristic impedance of the transmission line is equal to the connected load impedance and the phase is the same, the input end or the output end of the transmission line is in an impedance matching state, which is abbreviated as impedance matching.

It is understood that the first matching circuit 140 may include an indefinite number of capacitive elements, inductive elements, switching elements. The specific structure of the matching circuit is not limited in the embodiment of the present application.

One end of the switching circuit, for example, the first switching circuit 150, is electrically connected between the matching circuit and the first end 111, the other end of the first switching circuit 150 is grounded, and the first switching circuit 150 is configured to perform a switching operation to at least adjust the frequency range of the first resonant mode. The first switching circuit 150 may include a plurality of switching branches with different impedance values, one end of each switching branch may be electrically connected between the matching circuit and the first end 111, the other end of each switching branch may be grounded, and the switching circuit may select any switching branch to change the electrical length of the first radiator 110 to at least adjust the frequency range of the first resonant mode.

For example, referring to fig. 12, fig. 12 is a schematic diagram of S parameters when the first antenna 100 of the electronic device 10 shown in fig. 11 supports wireless signals in different frequency bands, the first switching circuit 150 may include at least three switching branches, and curves S5 to S7 in fig. 12 are S parameter curves of the first antenna 100 when the switching circuit switches between the three switching branches, respectively, and as can be seen from the curves S5 and S7, the frequency band corresponding to the first resonance mode of the first antenna 100 may be switched between the B28 frequency band (703 MHz to 803 MHz), the B5 frequency band (1920 MHz to 2170 MHz) and the B8 frequency band (880 MHz to 960 MHz). At this time, there is a small deviation of the center frequency of the second resonant mode due to the influence of the switching operation of the switching circuit, and in general, the switching operation of the first switching circuit 150 can mainly adjust the frequency range corresponding to the first resonant mode.

It can be appreciated that the first antenna 100 can implement switching between different sub-frequency bands of the low frequency band under the switching action of the first switching circuit 150, so as to implement full coverage of the low frequency band; the first antenna 100 may also implement switching of different sub-bands in other bands under the switching action of the switching circuit, which is not limited in the embodiment of the present application.

It is understood that the first switching circuit 150 may include an indefinite number of capacitive elements, inductive elements, switching elements. The specific structure of the matching circuit is not limited in the embodiment of the present application.

The first antenna 100 according to the embodiment of the present invention includes the first matching circuit 140 and the first switching circuit 150, which can improve the radiation performance of the first antenna 100, and meanwhile, under the switching operation of the first switching circuit 150, the first antenna 100 can support wireless signals with different frequency bands, and the application of the first antenna 100 is wider. In addition, since one end of the first switching circuit 150 is electrically connected between the first feed source 130 and the first end 111, the switching operation of the first switching circuit 150 mainly adjusts the frequency range of the first resonant mode, and the switching operation of the first switching circuit 150 has less influence on the second resonant mode, so that the second resonant mode can still improve the antenna efficiency of the first resonant mode.

Referring to fig. 11 again, the electronic device 10 of the embodiment of the present application may further include a second carrier 420, where the second carrier 420 may be disposed near the first end 111, and the second carrier 420 may carry one, two or three of the first feed 130, the first matching circuit 140 and the first switching circuit 150.

It is understood that the second carrier 420 may be a PCB board, the second carrier 420 may be a small board of the electronic device 10, and the second carrier 420 may be a PCB board. The first feed 130, the first matching circuit 140, and the first switching circuit 150 may be, but are not limited to, circuit structures, electronic components, or electronic modules etched on the second carrier 420. The first feed 130, the first matching circuit 140, and the first switching circuit 150 may be electrically connected through, but not limited to, etched lines on the second carrier 420.

It should be noted that, when the inductive load 120 of the first antenna 100 includes the first grounding element 121, the conductive metal element 122, and the second grounding element 123, the electronic device 10 may be provided with the second carrier board 420 to carry the first feed 130, the first matching circuit 140, and the first switching circuit 150, and the electronic device 10 may include a carrier board. When the inductive load 120 of the first antenna 100 includes the inductance module 125, the electronic device 10 may include a first carrier 410 configured to carry the inductance module 125, and a second carrier 420 configured to carry the first feed 130, the first matching circuit 140, and the first switching circuit 150, where the electronic device 10 may include two carrier boards. The specific structure of the electronic device 10 is not limited in the embodiment of the present application.

Referring to fig. 13, fig. 13 is a schematic diagram of a seventh structure of an electronic device 10 according to an embodiment of the present application. The electronic device 10 may also include a second antenna 200.

The second antenna 200 may include a second radiator 210, a third radiator 220, and a second feed 230. The second radiator 210 is located at a side of the first end 111 of the first radiator 110, the second radiator 210 may include a first free end 211 and a first grounding portion 212, one end of the second radiator 210, for example, the first grounding portion 212 is spaced apart from the first end 111 of the first radiator 110 and grounded, and the other end of the second radiator 210, for example, the first free end 211 extends in a direction away from the first radiator 110. The second radiator 210 may be located between the first radiator 110 and the third radiator 220 and spaced apart from both the first radiator 110 and the third radiator 220. The third radiator 220 includes a second free end 221, a second feeding portion 222, and a second grounding portion 223, one end of the third radiator 220, for example, the second free end 221, is spaced apart from the other end of the second radiator 210, for example, the first free end 211, and the other end of the third radiator 220, for example, the second grounding portion 223, extends in a direction away from the second radiator 210 and is grounded. The second feed source 230 is electrically connected to the second feeding portion 222 of the third radiator 220, where the second feed source 230 can independently excite the third radiator 220 to support the receiving and transmitting of the second wireless signal, and the second feed source 230 can also excite the second radiator 210 and the third radiator 220 to support the receiving and transmitting of the second wireless signal together.

It will be appreciated that the ungrounded end (the first free end 211) of the second radiator 210 may be adjacent to and spaced apart from the ungrounded end (the second free end 221) of the third radiator 220, and the grounded end (the first grounding portion 212) of the second radiator 210 and the grounded end (the second grounding portion 223) of the third radiator 220 are spaced apart from each other, so that the second radiator 210 and the third radiator 220 may form an opening-to-opening radiating structure, and the second radiator 210 and the third radiator 220 may be electromagnetically coupled and jointly support the transceiving of the second wireless signal under the action of the second excitation signal provided by the second feed 230. The second wireless signal may be the same as the first wireless signal, and the second wireless signal may be different from the first wireless signal. For example, the first wireless signal may be a low frequency signal and the second wireless signal may be a medium-high frequency signal.

It will be appreciated that the second feed 230 may excite the second antenna 200 to simultaneously produce a fourth resonant mode and a fifth resonant mode such that the second antenna 200 supports the second wireless signal. In which, during an alternating half-wave period, the fourth resonant mode may generate a fourth resonant current flowing from the second ground 223 of the third radiator 220 toward the second free end 221, and the fifth resonant mode may generate a fifth resonant current flowing from the first ground 212 of the second radiator 210 toward the first free end 211. In another alternating half-wave period, the fourth resonance current may flow from the second free end 221 toward the second ground 223, and the fifth resonance current may flow from the first free end 211 toward the first ground 212. Of course, the second feed 230 may also excite the second antenna 200 to generate other resonant modes and support the second wireless signal. This is not limiting in the embodiments of the present application.

Referring to fig. 14, fig. 14 is an eighth structural schematic diagram of the electronic device 10 according to the embodiment of the present application. The distance between the second feeding portion 222 and the second free end 221 of the third radiator 220 is smaller than the distance between the second feeding portion 222 and the second ground portion 223. The second antenna 200 may further include a second switching circuit 240, where the second switching circuit 240 includes a single-pole single-throw switch 241 and a load element 242 connected in series, one end of the single-pole single-throw switch 241 is electrically connected between the second feed 230 and the second feed 222, the other end of the single-pole single-throw switch 241 is electrically connected to one end of the load element 242, and the other end of the load element 242 is electrically connected to the ground plane 300.

The single pole single throw switch 241 is configured to disconnect the load element 242 from the second feed source 230 and the second feed portion 222, so that the second feed source 230 excites the third radiator 220 to generate a resonant mode supporting the second wireless signal transceiving of the first frequency band, and the resonant mode may be the fourth resonant mode described above. The single pole single throw switch 241 is further configured to conduct electrical connection between the load element 242 and the second feeding portion 222 and the second feed source 230, so that the second feed source 230 excites the third radiator 220 to generate a sixth resonant mode supporting the first wireless signal transceiving of the second frequency band; the sixth resonant mode may form a sixth resonant current flowing from the load element 242 and the second ground 223 toward the first free end 211 on the third radiator 220 during one ac half-wave period, and the sixth resonant current may flow from the first free end 211 toward the load element 242 and the second ground 223 during another ac half-wave period.

It will be appreciated that in the embodiment shown in fig. 14, if the first grounding portion 212 of the second radiator 210 is electrically connected to the ground plane 300, at this time, under the excitation of the first feed source 130, the second radiator 210 may be electromagnetically coupled to the third radiator 220, and the first feed source 130 may excite the second radiator 210 to generate a resonant mode supporting the second wireless signal transceiving of the third frequency band, where the resonant mode may be the fifth resonant mode described above. That is, if the single pole single throw switch 241 breaks the electrical connection between the load element 242 and the second feed 230 and the second feed 222, the third radiator 220 may generate the fourth resonant mode and the second radiator 210 may generate the fifth resonant mode under the action of the first feed 130; if the single pole single throw switch 241 conducts the electrical connection between the load element 242 and the second feeding portion 222 and the second feeding source 230, the third radiator 220 may generate a sixth resonant mode under the action of the first feeding source 130, and the second radiator 210 may generate a fifth resonant mode.

It is understood that load element 242 may be, but is not limited to being, an inductive element, and that when load element 242 is an inductive element, the inductance value of the inductive element is no greater than 10 nanohenries.

It will be appreciated that in the embodiment of fig. 13 and 14, the first grounding portion 212 of the second radiator 210 may be grounded by a switching circuit, and the frequency range of the second wireless signal supported by the second radiator 210 may be adjusted by the switching circuit. For example, as shown in fig. 13 and 14, the second radiator 210 may share the same switching circuit with the first radiator 110, such as the first switching circuit 150, where the first switching circuit 150 includes at least two switching branches, and one end of one switching branch is electrically connected to the first matching circuit 140 and the first end 111 of the first radiator 110, and the other end is grounded; one end of the other switching branch is electrically connected to the first grounding portion 212 of the second radiator 210, and the other end is grounded. At this time, the first radiator 110 and the second radiator 210 reuse the same switch 260, and the production cost of the electronic device 10 can be reduced.

It can be understood that the second carrier board 420 of the electronic device 10 may also carry the second feed source 230 and the second switching circuit 240, and the first antenna 100 and the second antenna 200 may share the second carrier board 420 at this time, so that the electronic device 10 may save the production cost and the design space of one carrier board.

In the electronic device 10 of the present application, a distance between the second feeding portion 222 and the second free end 221 of the third radiator 220 is smaller than a distance between the second feeding portion 222 and the second grounding portion 223; one end of the single pole single throw switch 241 is electrically connected between the second feed 230 and the second feed 222, the other end is electrically connected to one end of the load element 242, and the other end of the load element 242 is electrically connected to the ground plane 300. When the single pole single throw switch 241 of the second switching circuit 240 breaks the electrical connection between the load element 242 and the second feed 230 and the second feed 222, the resonant current generated by the second feed 230 exciting the third radiator 220 has a stronger current distribution in the area near the second grounding portion 223 and the area near the second free end 221, the resonant current is distributed more uniformly on the whole third radiator 220, and the second feed 230 exciting the second radiator 210 can have better radiation performance and lower SAR value when supporting the transceiving of the second wireless signal of the first frequency band. When the single pole single throw switch 241 conducts the electrical connection between the load element 242 and the second feeding portion 222 and the second feed source 230, the load element 242 may be grounded, and the grounded load element 242 may further disperse the resonant current, so that the second feed source 230 may have better radiation performance and lower SAR value when exciting the third radiator 220 to support the transceiving of the second wireless signal in the second frequency band. Based on this, the electronic device 10 in the embodiment of the present application may still maintain a better radiation performance and a lower SAR value in the switching process of the signals in different frequency bands through the single pole single throw switch 241 with a simple structure, and the present application may ensure that the antenna radiation performance and the low SAR value when the electronic device 10 supports the signals in different frequency bands; meanwhile, the cost of the single pole single throw switch 241 is far lower than that of other switching circuits with complex structures on the market, so that the electronic device 10 of the present application can achieve both low cost and low SAR value.

Referring to fig. 15, fig. 15 is a schematic diagram of a ninth structure of the electronic device 10 according to the embodiment of the present application. The second radiator 210 may further be provided with an electrical connection end 213, and the electrical connection end 213 may be located between the first free end 211 and the first grounding portion 212 of the second radiator 210, or the electrical connection end 213 may be disposed at the first free end 211 such that the electrical connection end 213 coincides with the first free end 211. The second feed 230 of the second antenna 200 may be electrically connected to both the second feed 222 and the electrical connection terminal 213.

It will be appreciated that the second antenna 200 may further include a matching circuit, such as a second matching circuit 250, where the second matching circuit 250 is electrically connected between the second feed 230 and the electrical connection terminal 213, and the second matching circuit 250 may be used to perform impedance matching adjustment on the excitation signal fed by the second feed 230 to the electrical connection terminal 213.

It will be appreciated that the second feed 230 may excite the second radiator 210 and the third radiator 220 to form a seventh resonant mode and an eighth resonant mode together to support the transceiving of the second wireless signal in the fourth frequency band. Wherein, during an alternating half-wave period, the seventh resonant mode may form a seventh resonant current flowing from the first free end 211 toward the first ground 212 on the second radiator 210, and the eighth resonant mode may form an eighth resonant current flowing from the second free end 221 toward the second ground 223 on the third radiator 220. In another alternating half-wave period, the seventh resonance current may flow from the first ground 212 toward the first free end 211, and the eighth resonance current may flow from the second ground 223 toward the second free end 221.

It is understood that the second antenna 200 may further include a switch 260, where the switch 260 may be electrically connected between the second feed 230 and the electrical connection terminal 213, and when the switch 260 disconnects the electrical connection between the second feed 230 and the electrical connection terminal 213, the second antenna 200 may be the antenna architecture shown in fig. 13 and 14; when the switch 260 turns on the electrical connection between the second feed 230 and the electrical connection terminal 213, the second antenna 200 may be the antenna architecture scheme shown in fig. 15.

It will be appreciated that in the antenna architecture shown in fig. 15, the second antenna 200 may also include a second switching circuit 240.

It is understood that the second carrier board 420 of the electronic device 10 may also carry the second matching circuit 250, and a minimum distance between the second carrier board 420 and a frame of the electronic device 10, such as a first frame 611, is greater than a maximum distance between the second radiator 210, the third radiator 220 and the first frame 611, so that the second carrier board 420 is further away from the frame 610.

In the electronic device 10 of the present application, when the second feed 230 is disposed on the second carrier 420, compared to the second radiator 210 and the third radiator 220, the second feed 230 is further away from the second frame 612, and the excitation signal provided by the second feed 230 may be coupled to the third radiator 220 through the first path between the second feed 230 and the second feed 222, or may be coupled to the second radiator 210 through the second path between the second feed 230 and the electrical connection end 213. At this time, a portion of the resonant current may be formed on the second path, which may divide the portion of the resonant current, and since the second loading plate 420 and the second feed 230 are farther from the second bezel 612, the second path is farther from the user when the user uses the electronic device 10, so that the second path, which disperses the resonant current and is farther from the user, may reduce the SAR value of the electronic device 10. Meanwhile, the resonant current generated by the excitation signal provided by the second feed source 230 and the resonant current generated by electromagnetic coupling with the third radiator 220 exist on the second radiator 210 at the same time, and compared with the excitation current with electromagnetic coupling, the resonant current on the second radiator 210 is more balanced in distribution, and the contribution rate of the second radiator 210 to the SAR value of the electronic device 10 is lower. Therefore, under the combined action of the second feed source 230, the second radiator 210 and the third radiator 220, the second antenna 200 of the present application may have a lower SAR value, and compared with the scheme in the related art that the second feed source 230 is only electrically connected to the third radiator 220, the SAR value of the second antenna 200 of the present application may be reduced by 25%, and the SAR reduction effect is obvious.

Referring to fig. 16, fig. 16 is a schematic view of a tenth structure of the electronic device 10 according to the embodiment of the present application. The second antenna 200 may further include a fourth radiator 270.

The fourth radiator 270 is disposed at an end of the third radiator 220 remote from the second radiator 210. The fourth radiator 270 includes a third free end 271 and a third grounding portion 272, the third free end 271 is disposed at a distance from the second grounding portion 223 of the third radiator 220, and the third grounding portion 272 extends in a direction away from the third radiator 220 and the second grounding portion 223 and is grounded. The fourth radiator 270 may be electromagnetically coupled to the third radiator 220 under the influence of the second feed 230. For example, the second feed 230 may excite the third radiator 220 to electromagnetically couple with the second radiator 210 and the fourth radiator 270, respectively, such that the third radiator 220 forms at least a ninth resonant mode, the second radiator 210 forms at least a tenth resonant mode, and the fourth radiator 270 forms at least an eleventh resonant mode. The ninth resonance mode, the tenth resonance mode and the eleventh resonance mode support the transmission and reception of the second wireless signal, and the center frequency corresponding to the eleventh resonance mode, the center frequency corresponding to the ninth resonance mode and the center frequency corresponding to the tenth resonance mode are sequentially increased.

It will be appreciated that during an ac half-wave cycle, the ninth resonant mode may form a ninth resonant current flowing from the second ground 223 toward the second free end 221 and from the first free end 211 toward the first ground 212; the tenth resonance mode may form a tenth resonance current flowing from the first free end 211 toward the first ground 212; the eleventh resonance mode forms an eleventh resonance current flowing from the third ground 272 to the third free end 271. In another alternating half-wave period, the ninth resonance current may flow from the first ground portion 212 toward the first free end 211, from the second free end 221 toward the second ground portion 223, the tenth resonance current may flow from the first ground portion 212 toward the first free end 211, and the eleventh resonance current may flow from the third free end 271 toward the third ground portion 272. Of course, the ninth to eleventh resonance modes may be other resonance modes and have other current distributions, which are not limited in the embodiment of the present application.

In the electronic device 10 of the embodiment of the present application, the second radiator 210, the third radiator 220, the fourth radiator 270 and the second feed source 230 together form the second antenna 200, the second radiator 210 and the fourth radiator 270 are respectively electromagnetically coupled with the third radiator 220, the ninth resonant mode formed by the third radiator 220 is the main resonant mode in which the second antenna 200 supports the second wireless signal, and the tenth resonant mode and the eleventh resonant mode are auxiliary resonant modes of the ninth resonant mode, on one hand, the second radiator 210 and the fourth radiator 270 can disperse the resonant current on the third radiator 220, so that the resonant current is not easy to concentrate on the third radiator 220, and the SAR value when the second antenna 200 receives and transmits the first wireless signal can be reduced; on the other hand, the center frequency corresponding to the tenth resonance mode is greater than the center frequency of the ninth resonance mode, so that the ninth resonance mode can achieve enhancement effect on the ninth resonance mode in a frequency range higher than the center frequency of the ninth resonance mode, and the center frequency corresponding to the eleventh resonance mode is smaller than the center frequency of the ninth resonance mode, so that the eleventh resonance mode can achieve enhancement effect on the ninth resonance mode in a range lower than the center frequency of the ninth resonance mode, thereby realizing three modes of the second antenna 200, widening the antenna bandwidth of the second wireless signal supported by the second antenna 200, and improving the radiation efficiency of the second antenna 200.

In the electronic device 10 shown in fig. 14 to 16, the second antenna 200 may further include other structures such as a switching circuit and a matching circuit. For example, a matching circuit electrically connected between the second feed 230 and the second feed 222 may be disposed between the two. For another example, switching circuits electrically connected to the second radiator 210, the third radiator 220, and the fourth radiator 270 may be further provided on the second radiator. The specific architecture of the second antenna 200 is not limited in the embodiments of the present application.

It should be noted that, in the electronic device 10 of the embodiment of the present application, the first antenna 100 may be a low-frequency antenna, and the second antenna 200 may be a medium-high-frequency antenna, so that the electronic device 10 of the present application may support low-frequency signals and medium-high-frequency signals. Of course, the first antenna 100 and the second antenna 200 may also support other signals, which is not limited in the embodiment of the present application.

Referring to fig. 17, fig. 17 is a schematic diagram of an eleventh structure of the electronic device 10 according to the embodiment of the present application, based on the structure of the electronic device 10. The electronic device 10 includes the first antenna 100, the second antenna 200 of any of the embodiments described above. As shown in fig. 17, the electronic device 10 may further include a display screen 500, a center 600, a circuit board 700, a battery 800, and a rear case 900.

The display screen 500 is disposed on the middle frame 600 to form a display surface of the electronic device 10 for displaying information such as images, text, and the like. The display screen 500 may include a liquid crystal display (Liquid Crystal Display, LCD) or an Organic Light-Emitting Diode (OLED) display, or the like.

The middle frame 600 may include a frame 610 and a middle plate 620, the frame 610 may be a hollow frame structure and form an outer frame of the electronic device 10, and the middle plate 620 may be a thin plate or sheet structure. The middle frame 600 is used to provide support for the electronics or functional components in the electronic device 10 to mount the electronics, functional components of the electronic device 10 together. For example, the middle frame 600 may be provided with grooves, protrusions, through holes, etc. to facilitate mounting of the electronic devices or functional components of the electronic apparatus 10. It is understood that the material of the middle frame 600 may include metal or plastic.

The circuit board 700 is disposed on the middle frame 600 to be fixed, and the circuit board 700 is sealed inside the electronic device 10 by the rear case 900. The circuit board 700 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. Meanwhile, the display screen 500 may be electrically connected to the circuit board 700 to control the display of the display screen 500 by a processor on the circuit board 700.

The battery 800 is disposed on the center 600, and the battery 800 is sealed inside the electronic device 10 by the rear case 900. Meanwhile, the battery 800 is electrically connected to the circuit board 700, so that the battery 800 supplies power to the electronic device 10. Wherein the circuit board 700 may be provided with a power management circuit. The power management circuitry is used to distribute the voltage provided by the battery 800 to the various electronic devices in the electronic device 10.

The rear case 900 is connected to the center 600. For example, the rear case 900 may be attached to the center 600 by an adhesive such as a double-sided tape to achieve connection with the center 600. The rear case 900 is used to seal the electronic devices and functional components of the electronic device 10 inside the electronic device 10 together with the middle frame 600 and the display screen 500, so as to protect the electronic devices and functional components of the electronic device 10.

It is understood that the ground plane 300 of the embodiments of the present application may be formed on the rear case 900, the circuit board 700, or the middle plate 620 of the middle frame 600, for example, a conductor region with zero potential may be disposed on the rear case 900, the circuit board 700, or the middle plate 620, and the ground plane 300 may be disposed on the conductor region.

It is understood that one or more of the first feed 130, the second feed 230, the first switching circuit 140, the second switching circuit 240, the first matching circuit 150, the second matching circuit 250 of embodiments of the present application may be, but are not limited to being, disposed on the circuit board 700; of course, one or more of the above components may also be provided on a small board of the electronic device 10, for example, on the second carrier board 420. The specific arrangement positions of the above structures are not limited in the embodiments of the present application. When the first feed source 130 and the second feed source 230 are disposed on the second carrier 420, the second carrier 420 and the circuit board 700 can realize transmission of radio frequency signals through coaxial lines, board-to-board connectors and other structures.

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 again.

Fig. 17 is combined with fig. 18 and fig. 19, fig. 18 is a twelfth structural schematic diagram of the electronic device 10 provided in the embodiment of the application, and fig. 19 is a thirteenth structural schematic diagram of the electronic device 10 provided in the embodiment of the application. The electronic device 10 may also include a first bezel 611 and a second bezel 612 that are connected to each other.

The first frame 611 and the second frame 612 may be outer frames of the middle frame 600. The first and second rims 611 and 612 may be bent and connected such that the first and second rims 611 and 612 are not collinear. The length of the first frame 611 may be smaller than that of the second frame 612, the first frame 611 may be a short frame of the electronic device 10, and the second frame 612 may be a long frame of the electronic device 10.

It is understood that the electronic device 10 may further include other frames, such as a third frame 613 and a fourth frame 614, where the third frame 613 may be disposed opposite the first frame 611 and the fourth frame 614 may be disposed opposite the second frame 612, and the first frame 611, the second frame 612, the third frame 613 and the fourth frame 614 are sequentially connected such that the middle frame 600 may be a rectangular frame. It should be noted that, the middle frame 600 may have other shapes, and the specific structure of the middle frame 600 is not limited in the embodiments of the present application.

It is appreciated that, in some embodiments, due to stacking of internal components of the electronic device 10, the area space near the second frame 612 is smaller, and at this time, the minimum distance between the second carrier plate 420 and the fourth frame 614 may be smaller than the minimum distance between the second carrier plate 420 and the second frame 612, so that the second carrier plate 420 is disposed closer to the fourth frame 614. The edge of the second loading plate 420 closest to the second bezel 612 may extend to an area near the first end 111 of the first radiator 110, so that the second loading plate 420 may simultaneously load the first feed 130 and the second feed 230 when the first feeding part 114 of the first radiator is disposed at and near the first end 111. It should be noted that the drawings in the present application are only illustrative embodiments of the present application, and are not limiting, for example, in some drawings in which the edge of the second carrying plate 420 closest to the second frame 612 is disposed near the first end 111, and in some drawings, the edge of the second carrying plate 420 closest to the second frame 612 is disposed relatively far from the first end 111. The specific placement position of the second carrier 420 may be adaptively defined according to the stacking situation inside the electronic device 10, which is not limited in this application.

It can be appreciated that the second carrier 420 may be provided with a first rf seat electrically connected to the first feed 130 and the second feed 230, the circuit board 700 may be provided with an rf chip and a second rf seat electrically connected to the rf chip, and the second rf seat may be electrically connected to the first rf seat through devices such as a coaxial line, a board-to-board connector, etc., so that the rf chip may be electrically connected to the first feed 130 and the second feed 230.

It is understood that a portion of the first radiator 110 may be disposed on the first frame 611, and another portion of the second radiator 210 may be disposed on the second frame 612. For example, the first end 111 of the first radiator 110 may be disposed on the first frame 611, and the second end 113 may be disposed on the second frame 612. Wherein the second radiator 210 and at least the third radiator 220 may be disposed on the first frame 611. For example, in the embodiment shown in fig. 14, 15 and 18, the second free end 221 of the third radiator 220 may be disposed on the first frame 611, and the second grounding portion 223 of the third radiator 220 may be disposed on the fourth frame 614. For another example, referring to the embodiment shown in fig. 16 and 19, all third radiators 220 may be disposed on the first frame 611, and the fourth radiator 270 may be disposed on the fourth frame 614. The specific arrangement mode of the four radiators is not limited in the embodiment of the application.

It can be understood that the first to fourth frames 611 to 614 are conductor structures, and the first to fourth frames 611 to 614 may be provided with slits to form metal branches, and at least one of the first, second, third and fourth radiators 110, 210, 220 and 270 may include at least one metal branch, so that the first to fourth radiators 110 to 270 may be frame antennas. Of course, the first to fourth radiators 110 to 270 may be, but not limited to, an antenna form of a flexible circuit board 700 (FPC) or an antenna form of self-embedded metal structure design (Mechanical Design Antenna, abbreviated as MDA) and connected to the frame 610. The specific arrangement of several radiators is not limited in this embodiment.

It will be appreciated that the first bezel 611 may be a bottom bezel when the user is holding the electronic device 10 in a forward direction and the second bezel 612 may be a side bezel when the user is holding the electronic device 10 in a forward direction. The area where the second radiator 210 and the third radiator 220 are spaced apart may correspond to a USB socket formed on the first frame 611, and one gap may be less formed on the first frame 611 to form the second radiator 210 and the third radiator 220. Therefore, the first radiator 110 to the third radiator 220 or the first radiator 110 to the fourth radiator 270 in the embodiments of the present application may form a low-frequency anti-human lower antenna scheme of the electronic device 10, which is compatible with low cost and low SAR value, and the first radiator 110 to the third radiator 220 or the first radiator 110 to the fourth radiator 270 may be reasonably arranged according to the appearance of the electronic device 10.

It should be noted that, the antenna scheme of the present application is not only applicable to electronic devices such as mobile phones, but also applicable to electronic devices such as tablet circuits, PC computers, large screens, etc.; meanwhile, the antenna implementation form of the present application is not limited to the metal frame form, and the embodiment of the present application is not limited thereto.

It should be understood that in the description of this 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.

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

Claims

1. An electronic device comprising a first antenna, the first antenna comprising:

2. The electronic device of claim 1, wherein the first resonant mode is a radiating mode of a T-antenna and the second resonant mode is a balanced mode of the T-antenna.

3. The electronic device of claim 1, wherein the first resonant mode forms a first resonant current that flows in opposite directions over a first radiating section between the first end and the ground and a second radiating section between the second end and the ground;

the second resonant mode forms a second resonant current flowing in the same direction over the first and second radiating segments.

4. The electronic device of claim 1, wherein the first resonant mode forms a first resonant current flowing from the first end toward the ground and from the second end toward the ground during one ac half-wave cycle and forms a first resonant current flowing from the ground toward the first end and the second end, respectively, during another ac half-wave cycle;

The second resonant mode forms a second resonant current flowing from the first end toward the second end during one ac half-wave cycle and from the second end toward the first end during another ac half-wave cycle.

5. The electronic device of claim 1, wherein the first wireless signal comprises a low frequency signal, and wherein a difference between a center frequency of the second resonant mode and a center frequency of the first resonant mode is in a range of 100MHz to 500 MHz.

6. The electronic device of claim 1, wherein the inductive load comprises:

one end of the first grounding piece is connected with the grounding part;

one end of the conductive metal piece is connected with the other end of the first grounding piece;

and one end of the second grounding piece is connected with the other end of the conductive metal piece, and the other end of the second grounding piece is connected with the ground plane.

7. The electronic device of claim 6, wherein the first grounding member and the second grounding member are grounding screws or grounding spring pieces, and the conductive metal member is a conductive steel sheet.

8. The electronic device of claim 6, further comprising an acoustic output device comprising a bracket gasket;

the first grounding piece is a grounding screw, the conductive metal piece is a support gasket, and the second grounding piece is a grounding spring piece.

9. The electronic device of claim 1, wherein the inductive load comprises:

the inductor module is electrically connected with the grounding part at one end and grounded at the other end; and

The first bearing plate is used for bearing the inductance module.

10. The electronic device of any one of claims 1-9, wherein the first antenna further comprises:

the matching circuit is electrically connected between the first feed source and the first end and is used for carrying out impedance matching adjustment on an excitation signal provided by the first feed source; and

And one end of the switching circuit is electrically connected between the matching circuit and the first end, the other end of the switching circuit is grounded, and the switching circuit is used for executing switching operation to at least adjust the frequency range of the first resonance mode.

11. The electronic device of claim 10, wherein the electronic device further comprises:

the second bearing plate is used for bearing the first feed source, the matching circuit and the switching circuit.

12. The electronic device of any one of claims 1-9, further comprising a second antenna, the second antenna comprising:

one end of the second radiator is arranged at intervals from the first end and grounded, and the other end of the second radiator extends in a direction away from the first radiator;

one end of the third radiator is arranged at intervals with the other end of the second radiator, and the other end of the third radiator extends along the direction away from the second radiator and is grounded; and

The second feed source is electrically connected with the third radiator, and is used for exciting the third radiator to support the receiving and transmitting of the second wireless signals, or the second feed source is used for exciting the second radiator and the third radiator to support the receiving and transmitting of the second wireless signals together.

13. The electronic device of claim 12, further comprising a first frame and a second frame connected in a bent manner, the second frame having a length greater than a length of the first frame; wherein,

The first end is arranged on the first frame, and the second end is arranged on the second frame; the second radiator and at least part of the third radiator are arranged on the first frame.

14. The electronic device of claim 12, further comprising a third bezel and a fourth bezel, the third bezel being disposed opposite the first bezel, the fourth bezel being disposed opposite the second bezel; the electronic device further includes:

the minimum distance between the second bearing plate and the fourth frame is smaller than the minimum distance between the second bearing plate and the second frame, and the second bearing plate is used for bearing the first feed source and the second feed source.