CN117728172A

CN117728172A - Antenna device and electronic equipment

Info

Publication number: CN117728172A
Application number: CN202311750894.1A
Authority: CN
Inventors: 郑超
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2023-12-18
Filing date: 2023-12-18
Publication date: 2024-03-19

Abstract

The embodiment of the application provides an antenna device and electronic equipment. The antenna device comprises a first radiator, a feed source, a second radiator, a first switch and a second switch. The feed source feeds an excitation signal to the first radiator through the feed point so as to excite the first radiator to support the first resonant frequency band; the second radiator is electromagnetically coupled with the first radiator through the gap; the first matching module is electrically connected with the second radiator; the first switch is electrically connected with the first radiator and the first matching module; the second switch is connected with the first matching module and the ground; when the first switch is closed and the second switch is opened, the first radiator, the first matching module and the second radiator are electrically connected so as to increase the radiation length of the first radiator; when the first switch is opened and the second switch is closed, the second radiator is grounded through the second switch, so that the excitation signal excites the second radiator to support the second resonant frequency band. Thus, the communication performance of the antenna is improved by adjusting the first radiator or the second radiator.

Description

Antenna device and electronic equipment

Technical Field

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

Background

Antennas are provided in electronic devices such as smartphones to implement wireless communication functions. Such as a 4G antenna, a 5G antenna, a WiFi antenna, etc. The antenna is a main electronic component for realizing a communication function of the electronic device, and is also one of indispensable electronic components, and the provision of a plurality of antennas at the same time has been a trend of ensuring good communication of the electronic device. In different communication environments, communication of the electronic device needs to be kept smooth, so that improvement of communication performance of the antenna is very important.

Disclosure of Invention

The embodiment of the application provides an antenna device and electronic equipment, which can improve the communication performance of the antenna device.

An embodiment of the present application provides an antenna apparatus, including:

a first radiator including a feeding point;

the feed source is electrically connected with the feed point and is used for feeding an excitation signal to the first radiator through the feed point so as to excite the first radiator to support a first resonant frequency band;

a gap is formed between the second radiator and the first radiator, and the second radiator is electromagnetically coupled with the first radiator through the gap;

the first matching module is electrically connected with the second radiator;

one end of the first switch is electrically connected with the first radiator, and the other end of the first switch is electrically connected with the first matching module; and

one end of the second switch is electrically connected with the first matching module, and the other end of the second switch is grounded;

when the first switch is closed and the second switch is opened, the first radiator, the first matching module and the second radiator are electrically connected to increase the radiation length of the first radiator;

when the first switch is opened and the second switch is closed, the second radiator is grounded through the second switch, so that the excitation signal excites the second radiator to support a second resonance frequency band.

The embodiment of the application also provides electronic equipment, which comprises:

a housing;

the antenna device is arranged on the shell, and the antenna device is any embodiment of the antenna device.

According to the antenna device, the radiation length of the first radiator can be increased to improve the radiation efficiency of the antenna device through switching of the opening and closing states of the first switch and the second switch, or the equivalent electric length of the second radiator can be changed to adjust the resonance frequency band of the second radiator, so that the second radiator can form rich CA or ENDC states with the first radiator, various frequency bands can be better covered to improve the communication bandwidth covered by the antenna device, and the communication performance of the antenna device is improved.

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 diagram of a first structure of an antenna device according to an embodiment of the present application.

Fig. 2 is a schematic diagram of radiation efficiency of an antenna device according to an embodiment of the present application.

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

Fig. 4 is a schematic diagram of another radiation efficiency of the antenna device according to the embodiment of the present application.

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

Fig. 6 is a schematic diagram of a fourth structure of an antenna device according to an embodiment of the present application.

Fig. 7 is a schematic diagram of a fifth structure of an antenna device according to an embodiment of the present application.

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

Fig. 9 is a schematic diagram of an internal circuit structure of an antenna switch according to an embodiment of the present application.

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

Fig. 11 is a schematic view of an eighth structure of an antenna device according to an embodiment of the present application.

Fig. 12 is a ninth structural schematic diagram of an antenna device according to an embodiment of the present application.

Fig. 13 is a schematic structural diagram 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 the drawings 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, based on the embodiments herein, which are obtained by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.

The embodiment of the application provides an antenna device 100, and the antenna device 100 can be applied to electronic equipment. The electronic device may be, for example, a smart phone, a tablet computer, a game device, an AR (Augmented Reality ) device, a notebook computer, a desktop computing device, or the like having a wireless communication function.

Referring to fig. 1, an antenna apparatus 100 provided in the embodiment of the present application includes a first radiator 10, a feed source 20, a second radiator 30, a first matching module 40, a first switch 51, and a second switch 52. The first radiator 10 comprises a feed point 11. The feed source 20 is electrically connected to the feeding point 11, and the feed source 20 is configured to feed an excitation signal to the first radiator 10 through the feeding point 11 to excite the first radiator 10 to support the first resonant frequency band. The second radiator 30 has a slit 10a between the first radiator 10 and the second radiator 30 is electromagnetically coupled to the first radiator 10 through the slit 10 a.

The first matching module 40 is electrically connected with the second radiator 30. One end of the first switch 51 is electrically connected to the first radiator 10, and the other end of the first switch 51 is electrically connected to the first matching module 40. One end of the second switch 52 is electrically connected to the first matching module 40, and the other end of the second switch 52 is grounded.

When the first switch 51 is closed and the second switch 52 is opened, the first radiator 10, the first matching module 40, and the second radiator 30 are electrically connected to increase the radiating length of the first radiator 10.

When the first switch 51 is opened and the second switch 52 is closed, the second radiator 30 is grounded through the second switch 52, so that the excitation signal excites the second radiator 30 to support the second resonant frequency band.

In this way, in the antenna apparatus 100 of the embodiment of the present application, through the switching of the open and close states of the first switch 51 and the second switch 52, the radiation length of the first radiator 10 is increased to improve the radiation efficiency of the antenna apparatus 100, or the equivalent electrical length of the second radiator 30 is changed to adjust the resonant frequency band of the second radiator 30, so that the second radiator 30 and the first radiator 10 can form a rich CA or ENDC state, and each frequency band can be better covered to improve the communication bandwidth covered by the antenna apparatus 100, thereby improving the communication performance of the antenna apparatus.

The second radiator 30 is electromagnetically coupled to the first radiator 10 through the slit 10a, the first radiator 10 may be understood as a main radiator, and the second radiator 30 may be understood as a parasitic radiator.

Specifically, the first radiator 10 may be an antenna radiator in a form such as FPC (Flexible Printed Circuit, flexible circuit board), LDS (Laser Direct Structure, laser direct structuring), PDS (Printing Direct Structure, print direct structuring), or an antenna radiator in a form of MDA (in-mold injection), or an antenna radiator formed by a conductor structure of an electronic device, a metal trace on a circuit board, or the like. The shape, size, etc. of the first radiator 10 may be set according to actual requirements. For example, in one practical example, the first radiator 10 may have an "L" shape.

Similarly, the second radiator 30 may be an antenna radiator in the form of FPC, LDS, PDS, MDA or the like, or may be an antenna radiator formed by a conductor structure of an electronic device, a metal wiring on a circuit board, or the like.

In an embodiment, the type of the first radiator 10 is the same as the type of the second radiator 30; in other embodiments, the type of the first radiator 10 may be different from the type of the second radiator 30, which is not limited.

The feed 20 may be disposed on a circuit board of the electronic device, such as a motherboard, or may be disposed on a separate circuit board. The feed 20 is for providing a first excitation signal. In practical applications, the excitation signal may be a type of excitation signal such as a 4G (4 th Generation Mobile Communication Technology, fourth generation mobile communication technology) excitation signal, a 5G (5 th Generation Mobile Communication Technology, fifth generation mobile communication technology) excitation signal, a WiFi (Wireless-Fidelity) excitation signal, and the like. The feeding point 11 is used for feeding an excitation signal to excite the first radiator 10 and the second radiator 30 to radiate wireless signals to the outside, thereby realizing a wireless communication function.

The changeover switch may be a switch having a single pole single throw function formed by electronic components such as a transistor, a switching transistor, or the like.

The excitation signal is fed into the feeding point 11 to excite the first radiator 10 and the second radiator 30 to resonate, and radiate a wireless signal to the outside to realize a wireless communication function. For example, the first radiator 10 and the second radiator 30 may radiate WiFi signals in the 2.4GHz band, wiFi5G signals in the 5.5GHz band, and the like, which is not limited herein.

When the first switch 51 and the second switch 52 are turned off, the feed source 20 feeds an excitation signal to the first radiator 10 through the feed point 11 to excite the first radiator 10 to support the first resonant frequency band, and under the coupling action, the excitation signal excites the second radiator 30 to support the fourth resonant frequency band. At this time, the first radiator 10 and the second radiator 30 form a CA (Carrier Aggregation ) or ENDC (EUTRA-NR Dual Connection, dual connection of the 4G radio access network and the 5G-NR) combined state of the first resonance frequency band and the fourth resonance frequency band.

The first matching module 40 may be an impedance circuit, and may specifically be one or more of impedance elements such as a capacitor, an inductor, or a resistor, which may be specifically set according to actual needs, and is not limited herein.

In one embodiment, the first matching module 40 is an inductor, when the second switch 52 is closed and the first switch 51 is opened, the second radiator 30 is grounded through the second switch 52, the equivalent electrical length of the second radiator 30 is shortened through the inductor of the first matching module 40, and the working frequency is increased, that is, the excitation signal excites the second radiator 30 to support the second resonant frequency band. At this time, the average frequency of the second resonance frequency band is greater than the average frequency of the fourth resonance frequency band. The first radiator 10 and the second radiator 30 form a CA or ENDC combined state of the first resonance frequency band and the second resonance frequency band.

In another embodiment, the first matching module 40 is a capacitor, when the second switch 52 is closed and the first switch 51 is opened, the second radiator 30 is grounded through the second switch 52, and the equivalent electrical length of the second radiator 30 is lengthened through the capacitor of the first matching module 40, so that the operating frequency is reduced, that is, the excitation signal excites the second radiator 30 to support the second resonant frequency band. At this time, the average frequency of the second resonance frequency band is smaller than the average frequency of the fourth resonance frequency band. The first radiator 10 and the second radiator 30 form a CA or ENDC combined state of the first resonance frequency band and the second resonance frequency band.

In other embodiments, the first matching module 40 may further include at least two of impedance elements such as a capacitor, an inductor, or a resistor, where when the second switch 52 is closed and the first switch 51 is opened, the second radiator 30 is grounded through the second switch 52, and an equivalent electrical length of the second radiator 30 is adjusted by the first matching module 40, so that the excitation signal excites the second radiator 30 to support a resonant frequency band different from the second resonant frequency band. The first matching module 40 may be specifically set according to actual needs, which is not limited herein.

When the first switch 51 is closed and the second switch 52 is opened, the first radiator 10, the first matching module 40 and the second radiator 30 are electrically connected, that is, the first radiator 10 is connected with the second radiator 30 through the first switch 51 and the first matching module 40, so as to increase the radiation length of the first radiator 10, and further improve the radiation performance of the antenna device 100, and in particular, referring to fig. 2, fig. 2 is a schematic diagram of the radiation efficiency of the antenna device 100 in the embodiment of the application. In fig. 2, a curve S1 represents the theoretical radiation efficiency of the signal radiated by the antenna device 100 when the first switch 51 is closed and the second switch 52 is opened; curve S2 represents the theoretical radiation efficiency of the signal radiated by the antenna device 100 when the first switch 51 and the second switch 52 are turned off; curve S3 represents the total radiation efficiency of the signal radiated by the antenna device 100 when the first switch 51 is closed and the second switch 52 is opened; curve S4 represents the theoretical radiation efficiency of the signal radiated by the antenna device 100 when the first switch 51 and the second switch 52 are opened.

As can be seen from fig. 2, when the first switch 51 is closed and the second switch 52 is opened, the first radiator 10, the first matching module 40 and the second radiator 30 are electrically connected to increase the radiating length of the first radiator 10, thereby improving the radiating efficiency of the antenna device 100 by about 1.5 dB.

Referring to fig. 3, in some embodiments, the antenna apparatus 100 includes a second matching module 60, a third switch 53, and a fourth switch 54.

The second matching module 60 is electrically connected to the second radiator 30, and one end of the third switch 53 is electrically connected to the first radiator 10, and the other end is electrically connected to the second matching module 60. One end of the fourth switch 54 is electrically connected to the second matching module 60, and the other end is grounded.

When the third switch 53 is closed and the fourth switch 54 is opened, the first radiator 10, the second matching module 60, and the second radiator 30 are electrically connected to increase the radiating length of the first radiator 10.

When the third switch 53 is opened and the fourth switch 54 is closed, the second radiator 30 is grounded through the fourth switch 54, so that the excitation signal excites the second radiator 30 to support the third resonant frequency band.

In this way, by switching the open and close states of the third switch 53 and the fourth switch 54, the radiating length of the first radiator 10 may be increased to improve the radiating efficiency of the antenna device 100, or the equivalent electrical length of the second radiator 30 may be changed to adjust the resonant frequency band of the second radiator 30, so that the second radiator 30 may form a rich CA or ENDC state with the first radiator 10, and may better cover each frequency band to improve the communication bandwidth covered by the antenna device 100, thereby improving the communication performance of the antenna device.

When the first switch 51, the second switch 52, the third switch 53 and the fourth switch 54 are all opened, the feed source 20 feeds an excitation signal to the first radiator 10 through the feed point 11 to excite the first radiator 10 to support the first resonant frequency band, and under the coupling action, the excitation signal excites the second radiator 30 to support the fourth resonant frequency band.

The second matching module 60 may be an impedance circuit, and may specifically be one or more of impedance elements such as a capacitor, an inductor, or a resistor, which may be specifically set according to actual needs, and is not limited herein.

In one embodiment, the second matching module 60 is an inductor, when the fourth switch 54 is closed, the first switch 51, the second switch 52 and the third switch 53 are all opened, the second radiator 30 is grounded through the fourth switch 54, the equivalent electrical length of the second radiator 30 is shortened through the inductor of the second matching module 60, and the working frequency is increased, that is, the excitation signal excites the second radiator 30 to support the third resonant frequency. At this time, the average frequency of the third resonance frequency band is greater than the average frequency of the fourth resonance frequency band.

In another embodiment, the second matching module 60 is a capacitor, when the fourth switch 54 is closed, the first switch 51, the second switch 52 and the third switch 53 are all opened, the second radiator 30 is grounded through the fourth switch 54, and the equivalent electrical length of the second radiator 30 is lengthened through the capacitor of the second matching module 60, so that the operating frequency is reduced, that is, the excitation signal excites the second radiator 30 to support the third resonant frequency band. At this time, the average frequency of the third resonance frequency band is smaller than the average frequency of the fourth resonance frequency band.

In other embodiments, the second matching module 60 may further include at least two of impedance elements such as capacitance, inductance, or resistance, when the fourth switch 54 is closed, the first switch 51, the second switch 52, and the third switch 53 are all opened, the second radiator 30 is grounded through the second switch 52, and the equivalent electrical length of the second radiator 30 is adjusted by the second matching module 60, so that the excitation signal excites the second radiator 30 to support a resonant frequency band different from the third resonant frequency band. The second matching module 60 may be specifically set according to actual needs, which is not limited herein.

When the third switch 53 is closed and the first switch 51, the second switch 52 and the fourth switch 54 are all opened, the first radiator 10, the second matching module 60 and the second radiator 30 are electrically connected, that is, the first radiator 10 is electrically connected with the second radiator 30 through the third switch 53 and the second matching module 60, so as to increase the radiation length of the first radiator 10, and further improve the radiation performance of the antenna device 100.

When the first switch 51 and the third switch 53 are closed and the second switch 52 and the fourth switch 54 are opened, the first radiator 10, the first matching module 40, the second matching module 60 and the second radiator 30 are electrically connected, that is, the first radiator 10 is electrically connected with the second radiator 30 through the third switch 53, the first matching module 40 and the second matching module 60, so as to increase the radiation length of the first radiator 10, and further improve the radiation performance of the antenna device 100. It should be noted that in this case, the first matching module 40 and the second matching module 60 are both capacitive or both inductive.

In some embodiments, the first matching module 40 includes one of a capacitance, an inductance;

the second matching module 60 includes the other of capacitance, inductance.

In this way, when the second switch 52 or the fourth switch 54 is closed and the first switch 51 and the third switch 53 are both opened, the equivalent electrical length of the second radiator 30 may be increased or decreased by the first matching module 40 and the second matching module 60 of different types, so that the operating frequency of the second radiator 30 is reduced or increased, so that the second radiator 30 and the first radiator 10 can form CA combined states of different frequency bands, and further multi-band coverage of the antenna apparatus 100 is achieved.

When the first switch 51, the second switch 52, the third switch 53 and the fourth switch 54 are all opened, the feed source 20 feeds an excitation signal to the first radiator 10 through the feed point 11 to excite the first radiator 10 to support the first resonant frequency band, and under the coupling action, the excitation signal excites the second radiator 30 to support the fourth resonant frequency band. At this time, the first radiator 10 and the second radiator 30 form a CA or ENDC combined state of the first resonance frequency band and the fourth resonance frequency band.

In one embodiment, the first matching module 40 includes only a capacitor and the second matching module 60 includes only an inductor.

When the second switch 52 is closed and the first switch 51, the third switch 53 and the fourth switch 54 are all opened, the second radiator 30 is grounded through the second switch 52, so that the excitation signal excites the second radiator 30 to support the second resonant frequency band. Wherein the average frequency in the second resonant frequency band is less than the average frequency in the fourth resonant frequency band. Specifically, the equivalent electrical length of the second radiator 30 may be increased by the first matching module 40, that is, the capacitor, so as to reduce the operating frequency of the second radiator 30, for example, to switch the operating frequency of the second radiator 30 to the state of the second resonant frequency band, so that the first radiator 10 and the second radiator 30 form a CA or ENDC combined state of the first resonant frequency band and the second resonant frequency band.

When the fourth switch 54 is closed and the first, second and third switches 51, 52 and 53 are all open, the second radiator 30 is grounded through the fourth switch 54, so that the excitation signal excites the second radiator 30 to support the third resonant frequency band. Wherein the average frequency in the third resonant frequency band is greater than the average frequency in the fourth resonant frequency band. Specifically, the equivalent electrical length of the second radiator 30 may be reduced by the second matching module 60, that is, the inductance, so as to increase the operating frequency of the second radiator 30, for example, to switch the operating frequency of the second radiator 30 to the state of the third resonant frequency band, so that the first radiator 10 and the second radiator 30 form a CA or ENDC combined state of the first resonant frequency band and the third resonant frequency band.

Similarly, in another embodiment, the first matching module 40 includes an inductor and the second matching module 60 includes a capacitor.

When the second switch 52 is closed and the first switch 51, the third switch 53 and the fourth switch 54 are all opened, the second radiator 30 is grounded through the second switch 52, so that the excitation signal excites the second radiator 30 to support the second resonant frequency band. At this time, the average frequency of the second resonance frequency band is greater than the average frequency of the fourth resonance frequency band.

When the fourth switch 54 is closed and the first, second and third switches 51, 52 and 53 are all open, the second radiator 30 is grounded through the fourth switch 54, so that the excitation signal excites the second radiator 30 to support the third resonant frequency band. At this time, the average frequency of the third resonance frequency band is smaller than the average frequency of the fourth resonance frequency band.

In some embodiments, the first matching module 40 and the second matching module 60 each include only an inductance, and when the second switch 52 and the fourth switch 54 are closed and the first switch 51 and the third switch 53 are open, the second radiator 30 is grounded through the second switch 52 and the fourth switch 54, so that the excitation signal excites the second radiator 30 to support the fifth resonant frequency band. The average frequency of the fifth resonant frequency band is greater than the average frequency of the fourth resonant frequency band. The inductance values of the first matching module 40 and the second matching module 60 may be the same or different, which is not limited herein.

In some embodiments, the first matching module 40 and the second matching module 60 each include only a capacitor, and when the second switch 52 and the fourth switch 54 are closed and the first switch 51 and the third switch 53 are open, the second radiator 30 is grounded through the second switch 52 and the fourth switch 54, so that the excitation signal excites the second radiator 30 to support the sixth resonant frequency band. The average frequency of the sixth resonant frequency band is less than the average frequency of the fourth resonant frequency band. The capacitance values of the first matching module 40 and the second matching module 60 may be the same or different, which is not limited herein.

In some embodiments, the first matching module 40 and the second matching module 60 may also be a hybrid circuit formed by impedance elements such as a capacitor, an inductor, or a resistor, and when the second switch 52 and the fourth switch 54 are closed and the first switch 51 and the third switch 53 are opened, the second radiator 30 is grounded through the second switch 52 and the fourth switch 54, so that the excitation signal excites the second radiator 30 to support the seventh resonant frequency band. The frequency range of the seventh resonant frequency range is related to the specific parameter settings of the first matching module 40 and the second matching module 60, and may be specifically set according to actual needs, which is not limited herein. The circuit designs of the first matching module 40 and the second matching module 60 may be the same or different, and are not limited herein.

In some embodiments, when the first switch 51 and the third switch 53 are closed and the second switch 52 and the fourth switch 54 are turned on, the first radiator 10, the first matching module 40, the second matching module 60 and the second radiator 30 are electrically connected to increase the radiating length of the first radiator 10, so that the radiating antenna aperture of the antenna device 100 can be increased, and the communication efficiency of the antenna device 100 is improved. It should be noted that in such a case, the first matching module 40 and the second matching module 60 include only capacitance or only inductance.

In some embodiments, the first resonant frequency band covers one of the B3 frequency band or the B1 frequency band.

The second resonant frequency band covers one of the N1 frequency band, the N40 frequency band, or the N78 frequency band.

The third resonant frequency band covers one of the N1 frequency band, the N40 frequency band, or the N78 frequency band.

In this way, the multiple frequency bands can make the radiation modes of the antenna device 100 more diversified, and improve the communication bandwidth covered by the antenna device 100.

Referring to fig. 4, fig. 4 is a schematic diagram illustrating another radiation efficiency of the antenna device 100 according to the embodiment of the present application.

In one embodiment, when the first matching module 40 is an inductor, the second matching module 60 is a capacitor, and the first switch 51, the second switch 52, the third switch 53, and the fourth switch 54 are all in an off state, the feed source 20 feeds an excitation signal to the first radiator 10 through the feeding point 11 to excite the first radiator 10 to support the B3 band (the frequency range is 1.71-1.88 GHz), and simultaneously excite the second radiator 30 to support the N41 band (the frequency range is 2.496-2.69 GHz), and the first radiator 10 and the second radiator 30 form a CA state operation, such as a combination of B3N41, as shown in fig. 4. The curve S5 (System to. Efficiency-B3N 41) of fig. 4 shows the total radiation efficiency of the signal radiated by the antenna device 100 when the first radiator 10 and the second radiator 30 form the CA state of B3N41 to operate in combination.

When the second switch 52 is closed, the first switch 51, the third switch 53 and the fourth switch 54 are opened, the second radiator 30 is grounded through the second switch 52, and the equivalent electrical length of the second radiator 30 can be reduced through the first matching module 40, that is, the inductance, so as to raise the working frequency of the second radiator 30, that is, the excitation signal excites the second radiator 30 to support the N78 frequency band (the frequency range is 3.4-3.6 GHz). The first radiator 10 and the second radiator 30 may now operate in a CA or ENDC combination that forms B3N78, as shown in fig. 4. The curve S6 (System to. Efficiency-B3N 78) of fig. 4 shows the total radiation efficiency of the signal radiated by the antenna device 100 when the first radiator 10 and the second radiator 30 form the CA state of B3N78 to operate in combination.

When the fourth switch 54 is closed, the first switch 51, the third switch 53 and the second switch 52 are opened, the second radiator 30 is grounded through the fourth switch 54, and the equivalent electrical length of the second radiator 30 can be increased through the second matching module 60, that is, the capacitor, so as to reduce the working frequency of the second radiator 30, that is, the excitation signal excites the second radiator 30 to support the N1 frequency band (the frequency range is 1.92-1.98 GHz). The first radiator 10 and the second radiator 30 may now operate in a CA or ENDC combination that forms B3N1, as shown in fig. 4. The curve S7 (System to. Efficiency-B3N 1) of fig. 4 shows the total radiation efficiency of the signal radiated by the antenna device 100 when the first radiator 10 and the second radiator 30 form the CA state of B3N1 to operate in combination.

It will be appreciated that in other embodiments, the excitation signal may also excite the first radiator 10 and the second radiator 30 to support other resonant frequency bands, which is not limited herein.

It should be noted that, in the antenna apparatus 100 of the embodiment of the present application, the states of the first switch 51, the second switch 52, the third switch 53 and the fourth switch 54 may be changed to realize the switching of the second radiator 30 in different operating frequency bands, and the second radiator 30 may form a rich CA or ENDC state with the first radiator 10, so that each frequency band may be better covered, and thus the communication capability of the antenna apparatus 100 may be improved.

Referring to fig. 5, in some embodiments, the antenna apparatus 100 may further include a third matching module 71 and a fifth switch 55, where the third matching module 71 is grounded. One end of the fifth switch 55 is electrically connected to the first radiator 10, and the other end is electrically connected to the third matching module 71, and the fifth switch 55 can be closed or opened to electrically connect or disconnect the third matching module 71 to or from the first radiator 10.

In this way, the state of the fifth switch 55 can make the third matching module 71 electrically connected to or disconnected from the first radiator 10, so that the equivalent electrical length of the first radiator 10 can be changed, and the excitation signal can make the first radiator 10 support a resonant frequency band different from the first resonant frequency band, and the first radiator 10 and the second radiator 30 can form a rich CA or ENDC combined state, so that each frequency band can be better covered, and the communication capability of the antenna device 100 can be improved.

The third matching module 71 may be an impedance circuit, and may specifically be one or more of impedance elements such as a capacitor, an inductor, or a resistor, which may be specifically set according to actual needs, and is not limited herein.

Referring to fig. 6, in some embodiments, the antenna apparatus 100 may further include a fourth matching module 72 and a sixth switch 56, where the fourth matching module 72 is grounded. The sixth switch 56 has one end electrically connected to the first radiator 10 and the other end electrically connected to the fourth matching module 72, and the sixth switch 56 can be closed or opened to electrically connect or disconnect the fourth matching module 72 to the first radiator 10. The impedance of the third matching block 71 and the fourth matching block 72 may be different.

In this way, the state of the sixth switch 56 can enable the fourth matching module 72 to be electrically connected to or disconnected from the first radiator 10, so that the equivalent electrical length of the first radiator 10 can be changed, and the excitation signal enables the first radiator 10 to support a resonant frequency band different from the first resonant frequency band, and the first radiator 10 and the second radiator 30 can form a rich CA or ENDC combined state, so that each frequency band can be better covered, and the communication capability of the antenna device 100 can be improved.

The fourth matching module 72 may be an impedance circuit, and may specifically be one or more of impedance elements such as a capacitor, an inductor, or a resistor, which may be specifically set according to actual needs, and is not limited herein.

Referring to fig. 7, in some embodiments, the antenna apparatus 100 may further include a fifth switch 55, a sixth switch 56, a third matching module 71, and a fourth matching module 72. When the fifth and sixth switches 55 and 56 are closed, the third and fourth matching modules 71 and 72 are electrically connected to the first radiator 10, so that the equivalent electrical length of the first radiator 10 can be changed to enable the excitation signal to cause the first radiator 10 to support a resonant frequency band different from the first resonant frequency band.

Referring to fig. 8 and 9, in some embodiments, the antenna device 100 includes an antenna switch 50, the antenna switch 50 includes a first switch 51 and a second switch 52, and the first switch 51 and the second switch 52 are encapsulated inside the antenna switch 50.

The antenna switch 50 may further include a first terminal 50a and a second terminal 50b, one end of the first terminal 50a being electrically connected to the first radiator 10, and the other end being electrically connected to the first switch 51. One end of the second terminal 50b is electrically connected to the second switch 52 and the first switch 51, and the other end is electrically connected to the first matching module 40.

In this way, the first terminal 50a of the antenna switch 50 is used to electrically connect with the first radiator 10, and the first switch 51 and the second switch 52 are disposed in the same antenna switch 50 for easy operation.

Referring to fig. 8 and 9, in some embodiments, the antenna switch 50 may include a third switch 53, a fourth switch 54, a fifth switch 55, and a sixth switch 56. Wherein one end of the third switch 53 is electrically connected to the first switch 51 and the first terminal 50a, the other end is electrically connected to the second matching module 60, and the third switch 53 is electrically connected to the first radiator 10 through the first terminal 50 a. Wherein one end of the fifth switch 55 is electrically connected to the sixth switch 56 and the first terminal 50a, and the other end is electrically connected to the third matching module 71. One end of the sixth switch 56 is connected to the first terminal 50a and the other end is connected to the fourth matching module 72. Wherein the third switch 53, the fourth switch 54, the fifth switch 55 and the sixth switch 56 are packaged inside the antenna switch 50. The antenna switch 50 may be a RFC switch.

In this way, the first switch 51, the second switch 52, the third switch 53, the fourth switch 54, the fifth switch 55, and the sixth switch 56 are disposed in the same antenna switch 50 for user operation.

The antenna switch 50 may further include a third terminal 50c, a fourth terminal 50d, and a fifth terminal 50e, wherein one end of the third terminal 50c is electrically connected to the third switch 53 and the fourth switch 54, and the other end is electrically connected to the second matching module 60. One end of the fourth terminal 50d is electrically connected to the fifth switch 55, and the other end is electrically connected to the third matching block 71. One end of the fifth terminal 50e is electrically connected to the sixth switch 56, and the other end is electrically connected to the fourth matching module 72.

It will be appreciated that in some embodiments, the antenna device 100 may include the first matching module 40, the second matching module 60, the third matching module 71, and the fourth matching module 72, and the antenna switch 50 may include the first switch 51, the second switch 52, the third switch 53, the fourth switch 54, the fifth switch 55, and the sixth switch 56, as shown in fig. 8 and 9.

In fig. 9, the USID pin is used to identify the identity of the mobile industry processor interface (mobile industry processorinterface, MIPI) controlled device; the GND pin is used for grounding the antenna switch 50; the SDATA pin is a data interface and is used for inputting control data; the VIO pin is connected with a power supply and is used for inputting a power supply signal; the SCLK pin is used to input a clock control signal.

The first matching module 40 and the second matching module 60 can be used to change the equivalent electrical length of the second radiator 30 and further change the excitation signal to excite the first radiator 10 and/or the second radiator 30 to generate different resonant frequency bands under the cooperation of the first switch 51, the second switch 52, the third switch 53 and the fourth switch 54, so that the first radiator 10 and the second radiator 30 can form rich CA or ENDC combined states, and can better cover each frequency band and further improve the communication capability of the antenna device 100.

The third matching module 71 and the third matching module 71 can be used to change the equivalent electrical length of the first radiator 10 with the cooperation of the fifth switch 55 and the sixth switch 56, respectively. The first matching module 40 and the second matching module 60 can also increase the radiation length of the first radiator 10 in cooperation with the first switch 51, the second switch 52, the third switch 53 and the fourth switch 54, thereby improving the radiation aperture of the antenna device 100 and the radiation efficiency of the antenna device 100.

Referring to fig. 10, in some embodiments, the antenna apparatus 100 further includes a fifth matching module 80, and the feed 20 is electrically connected to the feeding point 11 through the fifth matching module 80. The fifth matching module 80 is used for impedance matching the first radiator 10, thereby adjusting the resonance efficiency and the radiation efficiency of the first radiator 10. The fifth matching module 80 may be an impedance circuit, and may specifically be one or more of impedance elements such as a capacitor, an inductor, or a resistor, which may be specifically set according to actual needs, and is not limited herein.

Referring to fig. 11, in some embodiments, the antenna apparatus 100 further includes a sixth matching module 90, where one end of the sixth matching module 90 is electrically connected between the first radiator 10 and the first switch 51, and the other end is grounded.

In this way, under the excitation of the excitation signal, the arrangement of the sixth matching module 90 can change the resonance efficiency and the radiation efficiency, so that the excitation signal enables the first radiator 10 to support a resonance frequency band different from the first resonance frequency band, and the first radiator 10 and the second radiator 30 can form a rich CA state or an ENDC combined state, so that each frequency band can be better covered, and the communication capability of the antenna device 100 can be further improved.

The sixth matching module 90 may be an impedance circuit, and may specifically be one or more of impedance elements such as a capacitor, an inductor, or a resistor, which may be specifically set according to actual needs, and is not limited herein.

Referring to fig. 12, it can be appreciated that in some embodiments, the antenna apparatus 100 may include the first matching module 40, the second matching module 60, the third matching module 71, the fourth matching module 72, the fifth matching module 80, and the sixth matching module 90, and the antenna switch 50 includes the first switch 51, the second switch 52, the third switch 53, the fourth switch 54, the fifth switch 55, and the sixth switch 56.

Wherein, the third matching module 71 is matched with the fifth switch 55, and the fourth matching module 72 is matched with the sixth switch 56, both can be used for changing the equivalent electrical length of the first radiator 10. The fifth matching module 80 and the sixth matching module 90 can change the resonance efficiency and the radiation efficiency of the first radiator 10.

The first matching module 40 and the second matching module 60 can be used for changing the equivalent electrical length of the second radiator 30 and further changing the excitation signal to excite the first radiator 10 and/or the second radiator 30 to generate different resonant frequency bands under the cooperation of the first switch 51, the second switch 52, the third switch 53 and the fourth switch 54, so that the first radiator 10 and the second radiator 30 can form rich CA states, and each frequency band can be better covered and the communication capability of the antenna device 100 can be further improved.

The first matching module 40 and the second matching module 60 can also increase the radiation length of the first radiator 10 in cooperation with the first switch 51, the second switch 52, the third switch 53 and the fourth switch 54, thereby improving the radiation aperture of the antenna device 100 and the radiation efficiency of the antenna device 100.

To sum up, the adjustment of the radiation equivalent electrical length, resonance efficiency, and the like of the first radiator 10, and the adjustment of the equivalent electrical length of the second radiator 30; the first radiator 10 and the second radiator 30 can form rich CA states, so that the radiation modes of the antenna device 100 are more diversified, the communication bandwidth covered by the antenna device 100 is improved, and the communication capability of the antenna device 100 is improved from two aspects.

Referring to fig. 13, fig. 13 is a schematic structural diagram of an electronic device 1000 according to an embodiment of the present application. The electronic device 1000 includes a housing 200 and the antenna device 100, and the antenna device 100 is provided in the housing 200. For example, the respective radiators of the antenna device 100 may be disposed on the housing 200, and other electronic components or modules of the antenna device 100, etc. may be disposed inside the housing 200.

In some embodiments, the housing 200 may include a metal middle frame 201 and a metal rim 202, the metal rim 202 being disposed at a periphery of the metal middle frame 201. The metal middle frame 201 and the metal frame 202 may be made of metal or alloy materials such as aluminum alloy and magnesium alloy. The metal center 201 may form a main structure of the electronic device 1000 for carrying functional modules such as a motherboard, a camera module, a battery, and the like. The metal bezel 202 may form a side bezel of the electronic device 1000.

The metal bezel 202 includes spaced apart first and second metal branches 2021, 2022. In practical applications, the first metal branch 2021 and the second metal branch 2022 may be formed by slotting the metal frame 202. Wherein the first radiator 10 may be formed by a first metal branch 2021 and the second radiator 30 may be formed by a second metal branch 2022. Therefore, the metal bezel 202 can be multiplexed to form each radiator without providing a radiator separately, thereby simplifying the design of the antenna device 100.

In some embodiments, the metal bezel 202 includes a first side 210 and a second side 220 that are connected. The length of the first side 210 is greater than the length of the second side 220, i.e. the first side 210 may be understood as a long side and the second side 220 may be understood as a short side.

When the electronic device 100 is used by a user's transverse screen, for example, in a game playing scenario with a transverse screen, the user's hands often hold two ends of the electronic device (left and right ends of the transverse screen of the electronic device in use), in which case the WiFi antenna is easily held by the user's hands, and the performance of the WiFi antenna is affected. Thus, the antenna device 100 is typically designed on top of the electronic device 1000, i.e. at the short side of the electronic device 1000.

By top is meant the portion of the electronic device 1000 that is located above when in use in a portrait state. For example, when the electronic device 1000 is placed in a portrait orientation, the top of the electronic device 1000 is typically facing away from the ground. When the antenna device 100 is disposed on the top, the upper hemisphere of the antenna device 100 has a better radiation efficiency, thereby enabling the electronic apparatus 1000 to have a better communication effect. In this embodiment, an electronic device 1000 is illustrated in fig. 13 in a portrait state. It will be appreciated that in other embodiments, the electronic device 1000 may be in use in a portrait state, a landscape state, or even an inclined state.

In the description of the present application, it should be understood that terms such as "first," "second," and the like are used merely to distinguish between similar objects and should not be construed to indicate or imply relative importance or implying any particular order of magnitude of the technical features indicated.

It should be noted that, in the embodiments of the present application, the "electrical connection" may be a direct connection between two electrical components to implement electrical connection, or may be an indirect connection to implement electrical connection. For example, the electrical connection between a and B may be a direct connection between a and B, or an indirect connection between a and B via one or more other electrical components.

The antenna device and the electronic device provided in the embodiments of the present application are 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 antenna device, comprising:

a first radiator including a feeding point;

the first matching module is electrically connected with the second radiator;

2. The antenna device of claim 1, wherein the antenna device comprises a second matching module, a third switch, and a fourth switch;

the second matching module is electrically connected with the second radiator, one end of the third switch is electrically connected with the first radiator, and the other end of the third switch is electrically connected with the second matching module; one end of the fourth switch is electrically connected with the second matching module, and the other end of the fourth switch is grounded;

when the third switch is closed and the fourth switch is opened, the first radiator, the second matching module and the second radiator are electrically connected so as to increase the radiation length of the first radiator;

when the third switch is turned off and the fourth switch is turned on, the second radiator is grounded through the fourth switch, so that the excitation signal excites the second radiator to support a third resonance frequency band.

3. An antenna arrangement according to claim 2, characterized in that:

the first matching module comprises one of a capacitor and an inductor;

the second matching module comprises the other of capacitance and inductance.

4. An antenna arrangement according to claim 2, characterized in that:

the first resonant frequency band covers one of a B3 frequency band or a B1 frequency band;

the second resonant frequency band covers one of an N1 frequency band, an N40 frequency band or an N78 frequency band;

the third resonant frequency band covers one of an N1 frequency band, an N40 frequency band, or an N78 frequency band.

5. The antenna device according to any one of claims 1 to 4, further comprising a third matching module and a fifth switch, the third matching module being grounded;

one end of the fifth switch is electrically connected with the first radiator, the other end of the fifth switch is electrically connected with the third matching module, and the fifth switch can be closed or opened to enable the third matching module to be electrically connected with or disconnected from the first radiator.

6. The antenna device of claim 5, further comprising a fourth matching module and a sixth switch, the fourth matching module being grounded;

one end of the sixth switch is electrically connected with the first radiator, the other end of the sixth switch is electrically connected with the fourth matching module, and the sixth switch can be closed or opened to enable the fourth matching module to be electrically connected with or disconnected from the first radiator;

the third matching module and the fourth matching module have different impedances.

7. The antenna device according to any one of claims 1 to 4, characterized in that:

the antenna device comprises an antenna switch, the antenna switch comprises a first switch and a second switch, and the first switch and the second switch are packaged inside the antenna switch.

8. The antenna device according to any one of claims 1 to 4, further comprising a fifth matching module, wherein the feed is electrically connected to the feed point through the fifth matching module.

9. The antenna device according to any one of claims 1 to 4, further comprising a sixth matching module having one end electrically connected between the first radiator and the first switch and the other end grounded.

10. An electronic device, comprising:

a housing;

an antenna device provided to the housing, the antenna device being the antenna device according to any one of claims 1 to 9.