CN117374591A

CN117374591A - Antenna device and electronic device

Info

Publication number: CN117374591A
Application number: CN202210772938.XA
Authority: CN
Inventors: 梁俊杰
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2024-01-09

Abstract

The invention discloses an antenna device and electronic equipment. The antenna device comprises an antenna assembly, a feed assembly and an adjusting assembly. The antenna assembly comprises a first antenna, a second antenna and a third antenna which is arranged in an insulating manner with the first antenna and the second antenna, wherein an insulating interval is arranged between the first antenna and the second antenna, the working frequency band of the second antenna is larger than that of the first antenna, and the working frequency band of the third antenna is different from that of the second antenna and that of the first antenna. The feed assembly is respectively matched with the first antenna, the second antenna and the third antenna in feed. The adjusting component is connected with the first antenna. The adjusting component is used for enabling the first antenna to be arranged in an isolated mode from the second antenna and enabling the first antenna to gain the third antenna to be arranged when the first antenna is in a non-working state. When the antenna device is applied to electronic equipment, the communication performance of the electronic equipment can be improved.

Description

Antenna device and electronic device

Technical Field

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

Background

Electronic devices such as mobile phones, tablet computers, communication watches and the like have become indispensable scientific and technological products in the life, study and entertainment processes of people. With the development of communication technology, more and more electronic devices integrate high-frequency antennas to communicate, and further have the advantages of high transmission rate, low transmission delay and the like.

However, in the related art, the structure of the electronic device is becoming more and more compact, so that mutual interference is easy to occur between antennas with different frequency bands or different actions, which is not beneficial to improving the communication performance of the electronic device.

Disclosure of Invention

The present disclosure provides an antenna device and an electronic apparatus. The antenna device fully utilizes the antenna in the non-working state to realize decoupling gain and improves the performance of the antenna. When the antenna device is applied to electronic equipment, the communication performance of the electronic equipment can be improved.

The technical scheme is as follows:

according to a first aspect of embodiments of the present disclosure, there is provided an antenna device comprising an antenna assembly, a feed assembly, and an adjustment assembly. The antenna assembly comprises a first antenna, a second antenna and a third antenna which is arranged in an insulating manner with the first antenna and the second antenna, wherein an insulating interval is arranged between the first antenna and the second antenna, the working frequency band of the second antenna is larger than that of the first antenna, and the working frequency band of the third antenna is different from that of the second antenna and that of the first antenna. The feed assembly is respectively matched with the first antenna, the second antenna and the third antenna in feed. The adjusting component is connected with the first antenna. The adjusting component is used for enabling the first antenna to be arranged in an isolated mode from the second antenna and enabling the first antenna to gain the third antenna to be arranged when the first antenna is in a non-working state.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

when the antenna device is used, the feed assembly is respectively fed with the first antenna, the second antenna and the third antenna, and is connected with the first antenna through the adjusting assembly, so that when the first antenna is in a non-working state, the adjusting assembly is utilized to enable the first antenna to be isolated from the second antenna, and the first antenna is enabled to gain the third antenna. Therefore, the decoupling gain can be realized by matching the adjusting component with the first antenna, the influence of the first antenna on the performance of the second antenna is reduced or avoided, and the performance of the third antenna is improved by using the first antenna.

The technical scheme of the present disclosure is further described below:

in one embodiment, the adjusting assembly includes a switch module and an adjusting circuit connectable to ground, the switch module being connected in series with the first antenna and the adjusting circuit. When the first antenna is in a working state, the switch module is disconnected, and the first antenna is disconnected from the regulating circuit. When the first antenna is in a non-working state, the switch module is closed, the first antenna is grounded through the adjusting circuit, so that the first antenna is isolated from the second antenna, and the first antenna is increased to be arranged in a third antenna.

In one embodiment, when the first antenna is in a non-operating state and the third antenna is in an operating state, the switch module is closed, and the first antenna is grounded through the adjusting circuit, so that the first antenna forms a parasitic branch of the third antenna.

In one embodiment, the regulating circuit includes a first ground terminal and a capacitive unit connected in series with the first ground terminal. When the first antenna is in a working state, the switch module is disconnected, and the first antenna and the capacitor unit are disconnected. When the first antenna is in a non-working state, the switch module is closed, and the first antenna is grounded through the capacitor unit.

In one embodiment, the capacitance of the capacitor unit is adjustable.

In one embodiment, the capacitor unit comprises a first switch and at least two first capacitors connected in parallel with the switch module and the first ground terminal, at least one first capacitor being connected in series with the ground first ground terminal through the first switch.

In one embodiment, the second antenna is a 2.4G wifi antenna, the third antenna is a 5G wifi antenna, and the capacitance value of the capacitor unit is 0.3pF to 0.7pF.

In one embodiment, the conditioning circuit further includes a second ground terminal and a filter connected in series with the second ground terminal. When the first antenna is in a working state, the switch module is disconnected, and the first antenna is disconnected from the filter. When the first antenna is in a non-working state and the second antenna is in a working state, the switch module is closed, and the first antenna is connected with the second grounding terminal in series through the filter.

In one embodiment, the filter includes a second capacitor and a first inductor in series with the second capacitor; alternatively, the filter includes a third capacitor and a second inductor connected in parallel with the third capacitor.

In one embodiment, the first antenna and the second antenna are metal frame antennas, the third antenna is an LDS antenna, and the working frequency band of the third antenna is greater than that of the second antenna; wherein a first distance between the third antenna and the first antenna is greater than a second distance between the third antenna and the second antenna.

In one embodiment, the antenna device includes a metal middle frame, the metal middle frame includes a middle frame body and a metal frame, the metal frame includes a first antenna and a second antenna, the second antenna and the middle frame body are arranged at intervals to form a first gap, the first antenna and the middle frame body are arranged at intervals to form a second gap, the second antenna and the first antenna are arranged at intervals to form a third gap, and the radiation length of the second antenna is smaller than that of the first antenna.

According to a second aspect of the embodiments of the present disclosure, there is further provided an electronic device, including a housing assembly and the antenna device in any of the above embodiments, where the antenna assembly is disposed on the housing assembly.

the electronic equipment is provided with the antenna device, the decoupling gain can be realized by matching the adjusting component with the first antenna, the influence of the first antenna on the performance of the second antenna is reduced or avoided, and the performance of the third antenna is improved by using the first antenna. And further, the communication performance of the electronic equipment can be improved.

The technical scheme of the present disclosure is further described below:

in one embodiment, the electronic device further includes a circuit board electrically connected to the antenna device, the circuit board is provided with a ground network, the feeding component and the adjusting component are disposed on the circuit board, and the adjusting component is connected in series with the ground network.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate and explain the exemplary embodiments of the disclosure and their description are given by way of illustration and not of limitation.

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural diagram of an electronic device in an embodiment.

Fig. 2 is a schematic structural diagram of a metal middle frame in an embodiment.

Fig. 3 is a schematic diagram of the connection of the antenna device shown in some embodiments.

Fig. 4 is a schematic diagram illustrating connection between the first antenna and the capacitor unit in some embodiments.

Fig. 5 is a schematic diagram of connection of an antenna device shown in some embodiments.

Fig. 6 is a schematic diagram of the connection of the antenna device shown in some embodiments.

Fig. 7 is a graph showing frequency and efficiency variation of the decoupling gain of the second antenna and the third antenna without using the first antenna according to an embodiment.

Fig. 8 is a graph of frequency and efficiency variation of the decoupling gain of the second antenna and the third antenna using the first antenna according to an embodiment.

Fig. 9 is a frequency variation trend chart of the first antenna with different capacitance values in an embodiment.

Fig. 10 shows the variation of efficiency, frequency and isolation of the third antenna under the adjusting circuits of fig. 3, 5 and 6 according to an embodiment.

Fig. 11 is a schematic diagram of an internal hardware structure of an electronic device in an embodiment.

Reference numerals illustrate:

10. an electronic device; 11. a processing assembly; 12. a memory; 13. a power supply assembly; 14. a multimedia component; 15. an audio component; 16. an input/output interface; 17. a sensor assembly; 18. a communication component; 100. a housing assembly; 110. a metal middle frame; 111. a middle frame body; 112. a metal frame; 101. a first slit; 102. a second slit; 103. a third slit; 200. an antenna device; 210. a first antenna; 220. a second antenna; 230. a third antenna; 240. a feed assembly; 241. a first feeding unit; 242. a second feeding unit; 243. a third feeding unit; 250. an adjustment assembly; 251. a switch module; 252. an adjusting circuit; 201. a first ground terminal; 202. a capacitor unit; 2021. a first switch; 2022. a first capacitor; 203. a second ground terminal; 204. a filter; 2041. a second capacitor; 2042. a first inductance; 2043. a third capacitor; 2044. a second inductor; 300. a circuit board.

Detailed Description

For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the drawings and specific language will be used to describe the same. It should be understood that the detailed description is presented herein only to illustrate the present disclosure and not to limit the scope of the disclosure.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

Electronic devices such as mobile phones, tablet computers, communication watches and the like have become indispensable scientific and technological products in the life, study and entertainment processes of people. With the development of diversification of functions of electronic devices, electronic devices are various and brands are various, so that consumers can select the electronic devices, and how to obtain the consumer's favor is a problem that electronic device manufacturers attach more and more importance to.

At present, with the development of electronic devices, the integration of the electronic devices is higher and higher, and meanwhile, in order to adapt to miniaturization, gaps among electronic components in the electronic devices are smaller and smaller, and the layout is more and more compact.

However, in the related art, the structure of the electronic device is becoming more and more compact, so that mutual interference is easy to occur between antennas with different frequency bands or different actions, which is not beneficial to improving the communication performance of the electronic device. For example, in the design of a metal frame mobile phone antenna, a metal frame antenna is generally designed on two sides of a break seam on the metal frame, and because the break seam is generally about 1mm, the open end of one antenna faces the open end of the other antenna to generate mutual interference, which results in the deterioration of the antenna performance. But also this interference affects other antennas.

Based on this, it is necessary to provide an antenna device, which can reduce or avoid the antenna in the inactive state from interfering with the antenna performance of normal operation, and also utilize the inactive antenna to gain other antennas, so as to improve the antenna performance, thereby being beneficial to improving the communication performance of the electronic equipment.

For a better understanding of the antenna device of the present disclosure, an explanation will be made below in connection with an electronic apparatus to which the antenna device is applied.

As shown in fig. 1 to 3, in an embodiment of the present disclosure, an electronic device 10 is provided, including a housing assembly 100 and the antenna device 200 described above, where the antenna device 200 is disposed on the housing assembly 100.

The antenna device 200 includes an antenna assembly, a feeding assembly 240, and an adjusting assembly 250. The antenna assembly includes a first antenna 210, a second antenna 220, and a third antenna 230 insulated from the first antenna 210 and the second antenna 220, where an insulation interval is set between the first antenna 210 and the second antenna 220, an operating frequency band of the second antenna 220 is greater than an operating frequency band of the first antenna 210, and the operating frequency band of the third antenna 230 is different from the operating frequency band of the second antenna 220 and the operating frequency band of the first antenna 210. The feeding assembly 240 is respectively feed-coupled with the first antenna 210, the second antenna 220, and the third antenna 230. The adjustment assembly 250 is coupled to the first antenna 210. The adjusting component 250 is configured to isolate the first antenna 210 from the second antenna 220 and gain the first antenna 210 from the third antenna 230 when the first antenna 210 is in the inactive state.

When the antenna device 200 is used with reference to fig. 7 and 8, the feeding component 240 is respectively fed with the first antenna 210, the second antenna 220 and the third antenna 230, and is connected with the first antenna 210 through the adjusting component 250, so that when the first antenna 210 is in a non-working state, the adjusting component 250 is utilized to separate the first antenna 210 from the second antenna 220, and the first antenna 210 is increased to the third antenna 230. In this way, the decoupling gain can be achieved by using the adjusting component 250 in cooperation with the first antenna 210, which can reduce or avoid the interference of the first antenna 210 in the inactive state with the antenna performance of the second antenna 220 that normally works, and further increase the third antenna 230 by using the first antenna 210 in the inactive state, so as to improve the antenna performance of the third antenna 230. The antenna device 200 is applied to the electronic apparatus 10, and can improve the communication performance of the electronic apparatus 10.

It should be noted that, the specific implementation manner of the adjusting component 250 includes, but is not limited to, one of a matching circuit and a tuning circuit, and the effective radiation length of the coupling of the first antenna 210 can be adjusted.

In addition, the operating frequency band of the third antenna 230 may be selected according to implementation requirements, and the gain of the third antenna 230 may be achieved by matching the adjusting component 250 with the first antenna 210.

In some embodiments, the first antenna is a low frequency antenna, the second antenna and the third antenna are high frequency antennas, and the operating frequency of the third antenna is greater than the operating frequency band of the second antenna. Therefore, the debugging can be completed faster by utilizing the structure, decoupling between the first antenna and the second antenna is realized, and the third antenna is increased by utilizing the first antenna.

In the normal use process of the electronic equipment, the use frequency and the use time length of the first antenna are lower than those of the second antenna and the third antenna. The decoupling of the second antenna and the gain of the third antenna can be achieved by means of the adjusting assembly in the non-operating state of the first antenna.

Optionally, the first antenna is a GPS low frequency antenna (Global Positioning System, global satellite positioning system) or an AGPS low frequency antenna (Assisted Global Positioning System, assisted global satellite positioning system), the second antenna is a 2.4G wifi antenna, and the third antenna is a 5G wifi antenna.

Based on any of the foregoing embodiments, as shown in fig. 2, in some embodiments, the housing assembly 100 includes a metal middle frame 110, the metal middle frame 110 includes a middle frame body 111 and a metal frame 112, the metal frame 112 includes a first antenna 210 and a second antenna 220, the second antenna 220 is spaced from the middle frame body 111 to form a first gap 101, the first antenna 210 is spaced from the middle frame body 111 to form a second gap 102, a third gap 103 is formed between the second antenna 220 and the first antenna 210 at a relative interval, and a radiation length of the second antenna 220 is smaller than a radiation length of the first antenna 210. In this way, the first antenna 210 and the second antenna 220 may be formed by opening the first slot 101, the second slot 102 and the third slot 103 in the metal middle frame 110, and the radiation length of the second antenna 220 is smaller than that of the first antenna 210, so that the working frequency of the second antenna 220 is lower than that of the first antenna 210.

It will be appreciated that the integration of the first antenna 210 and the second antenna 220 into the metal center 110, i.e. the partial structure of the antenna device 200 is integrated with the housing assembly 100, improves the compactness of the electronic device 10.

As shown in fig. 3, in some embodiments, the feeding assembly 240 includes a first feeding element 241 feeding the first antenna 210, a second feeding element 242 feeding the second antenna 220, and a second feeding element 242 feeding the third antenna 230. In this way, the first, second and third antennas 210, 220 and 230 are fed by the first, second and third feeding units 241, 242 and 243, respectively, without mutual influence.

As shown in fig. 1, in some embodiments, the electronic device 10 further includes a circuit board 300 electrically connected to the antenna device 200, the circuit board 300 is provided with a ground network (not shown), the feeding component 240 and the adjusting component 250 are disposed on the circuit board 300, and the adjusting component 250 is connected in series with the ground network. In this way, the feeding assembly 240 and the adjusting assembly 250 are integrated into the circuit board 300, which is beneficial to improving the integration degree of the electronic device 10 and adapting to the miniaturization development of the electronic device 10. And the grounding network in the circuit board 300 is used for grounding the adjusting component 250, so that the effect of adjusting the first antenna 210 by the adjusting component 250 is improved, at least the antenna performance of the second antenna 220 can be ensured, and the antenna performance of the third antenna 230 can be increased.

The ground network includes a ground layer.

On the basis of any of the above embodiments, as shown in fig. 3 and 4, in some embodiments, the adjusting assembly 250 includes a switch module 251 and an adjusting circuit 252 capable of being grounded, and the switch module 251 is connected in series with the first antenna 210 and the adjusting circuit 252. When the first antenna 210 is in an operating state, the switch module 251 is disconnected, and the first antenna 210 is disconnected from the adjusting circuit 252. When the first antenna 210 is in the non-operating state, the switch module 251 is closed, and the first antenna 210 is grounded through the adjusting circuit 252, so that the first antenna 210 is isolated from the second antenna 220, and the first antenna 210 is increased to the third antenna 230. In this way, when the first antenna 210 needs to work normally, the switch module 251 is disconnected, so that the first antenna 210 is disconnected from the adjusting circuit 252, and the adjusting circuit 252 does not affect the working performance of the first antenna 210. When the first antenna 210 is not in operation, the switch is closed, the switch module 251 is closed, the first antenna 210 is grounded through the adjusting circuit 252, and the decoupling gain path is turned on. Since the operating frequency of the third antenna 230 is greater than the operating frequency of the second antenna 220, the current on the first antenna 210 cannot be coupled to the first antenna 210 through the adjusting circuit 252. The frequency of the current on the third antenna 230 is greater than the frequency of the current on the second antenna 220, and the current can be coupled to the first antenna 210 through the adjusting circuit 252, so that the radiation aperture of the third antenna 230 is increased, the efficiency of the third antenna 230 can be improved obviously, the first antenna 210 is isolated from the second antenna 220, and the first antenna 210 is increased to gain the third antenna 230.

Further, as shown in fig. 3 and fig. 4, in some embodiments, when the first antenna 210 is in the non-operating state and the third antenna 230 is in the operating state, the switch module 251 is closed and set, and the first antenna 210 is grounded through the adjusting circuit 252, so that the first antenna 210 forms a parasitic branch of the third antenna 230. In this way, the first antenna 210 in the inactive state can be used as a parasitic branch of the third antenna 230 by the adjusting circuit 252, so as to improve the radiation performance of the third antenna 230.

It can be appreciated that, the first antenna 210 acts as a parasitic branch of the third antenna 230, which can improve the radiation efficiency of the third antenna 230 and improve the radiation performance of the third antenna 230.

On the basis of any one of the embodiments of the adjusting circuit 252, as shown in fig. 3 and 4, in some embodiments, the adjusting circuit 252 includes a first ground terminal 201 electrically connected to the ground network and a capacitance unit 202, where the capacitance unit 202 is connected in series with the first ground terminal 201. When the first antenna 210 is in the operating state, the switch module 251 is disconnected, and the first antenna 210 is disconnected from the capacitor unit 202. In this way, when the first antenna 210 needs to work normally, the switch module 251 is disconnected, so that the first antenna 210 is disconnected from the adjusting circuit 252, and the adjusting circuit 252 does not affect the working performance of the first antenna 210. When the first antenna 210 is not in operation, the switch is closed, the switch module 251 is closed, the first antenna 210 is grounded through the capacitor unit 202, and the decoupling gain path is turned on. Since the operating frequency of the third antenna 230 is greater than that of the second antenna 220, the current on the first antenna 210 cannot be coupled to the first antenna 210 due to the characteristics of the capacitor unit 202. The frequency of the current on the third antenna 230 is greater than the frequency of the current on the second antenna 220, and the current can be coupled to the first antenna 210 through the capacitor unit 202, so that the radiation aperture of the third antenna 230 is increased, and the efficiency of the third antenna 230 can be improved obviously.

Based on any of the above embodiments, in some embodiments, the capacitance of the capacitor unit 202 is adjustable. In this way, the resonant frequency of the coupling mode on the first antenna 210 can be adjusted by adjusting the capacitance of the capacitance unit 202, so as to meet the requirement of the third antenna 230, and improve the adaptability of the adjusting circuit 252. Facilitating gain according to different operating frequencies of the third antenna 230.

Further, referring to fig. 9, S1 is a variation curve of the first antenna 210 in the 5G frequency band with a capacitance value of 0.4 pF. S2 is a variation curve of the first antenna 210 in the 5G band with a capacitance value of 0.5 pF. S3 is a variation curve of the first antenna 210 in the 5G band with a capacitance value of 0.7pF. As can be seen from the figure, the larger the capacitance of the capacitive element 202, the lower the frequency offset the first antenna 210.

Further, as shown in fig. 4, in some embodiments, the capacitor unit 202 includes a first switch 2021 and at least two first capacitors 2022 connected in parallel with the switch module 251 and the first ground terminal 201, and at least one first capacitor 2022 is connected in series with the grounded first ground terminal 201 through the first switch 2021. In this way, the first switch 2021 adjusts the number of the at least two first capacitors 2022 connected in parallel to the adjusting circuit 252, so as to adjust the capacitance value of the capacitor unit 202.

Further, as can be seen from fig. 7 and fig. 8, in some embodiments, the second antenna is a 2.4G wifi antenna, the third antenna is a 5G wifi antenna, and the capacitance value of the capacitor unit is 0.3pF to 0.7pF. And the first antenna is matched with the regulating circuit, the efficiency of the second antenna is improved by 0.7dB, the peak value of the third antenna is improved by 0.8dB, and the sideband efficiency is improved by 1.5dB.

Further, the capacitance value of the capacitance unit is one of 0.3pF, 0.4pF, 0.5pF, 0.7pF.

In addition to the adjustment of the first antenna 210 by the adjustment circuit 252 formed of at least one capacitor, in other embodiments, as shown in fig. 5 and 6, the adjustment circuit 252 further includes a second ground terminal 203 electrically connected to the ground network and a filter 204, the filter 204 being connected in series with the second ground terminal 203. When the first antenna 210 is in the operating state, the switch module 251 is disconnected, and the first antenna 210 is disconnected from the filter 204. When the first antenna 210 is in the non-operating state and the second antenna 220 is in the operating state, the switch module 251 is closed, and the first antenna 210 is connected in series with the second ground terminal 203 through the filter 204. Thus, the second ground terminal 203 and the filter 204 are matched, and the filter 204 can be adjusted by the filter characteristics.

Specifically, when the first antenna 210 needs to work normally, the switch module 251 is turned off, so that the first antenna 210 is turned off from the adjusting circuit 252, and the adjusting circuit 252 does not affect the working performance of the first antenna 210. When the first antenna 210 is not in operation, the switch is closed, the switch module 251 is closed, the first antenna 210 is grounded through the filter 204, and the decoupling gain path is turned on. Since the operating frequency of the third antenna 230 is greater than that of the second antenna 220, the current on the first antenna 210 cannot be coupled to the first antenna 210 due to the characteristics of the capacitor unit 202. And the frequency of the current on the third antenna 230 is greater than the frequency of the current on the second antenna 220, and the current can be coupled to the first antenna 210 through the capacitor unit 202, so that the radiation caliber of the third antenna 230 is increased, and the efficiency of the third antenna 230 can be improved.

Based on any of the above embodiments, as shown in fig. 5 and 6, in some embodiments, the filter 204 includes a second capacitor 2041 and a first inductor 2042 connected in series with the second capacitor 2041. Alternatively, the filter 204 includes a third capacitor 2043 and a second inductor 2044 in parallel with the third capacitor 2043. In this way, the filter 204 is obtained by the second capacitor 2041 and the first inductor 2042 connected in parallel, and the filter 204 is obtained by the third capacitor 2043 and the second inductor 2044 connected in series, so that the performance of the second antenna 220 and the third antenna 230, which are normally operated, can be reduced or avoided from being interfered by the first antenna 210 in the inactive state, and the performance of the antenna of the electronic device 10 is improved by using the inactive first antenna 210 to gain the third antenna 230.

Further, as shown in fig. 10, S4 is the change of the efficiency curve of the third antenna 230 under the three different adjusting circuits 252 of fig. 3, 5 and 6. S5 is the frequency curve variation of the third antenna 230 under the three different adjusting circuits 252 of fig. 3, 5 and 6. S6 is the isolation curve variation of the third antenna 230 under the three different adjusting circuits 252 of fig. 3, 5 and 6. As can be seen from the figure, the isolation between the left and right sidebands of the third antenna 230 is further improved by using the first antenna 210 for gain, the highest efficiency is improved by 7dB, and the radiation performance of the third antenna 230 is better than that of the third antenna without a decoupling gain path.

In some embodiments, the capacitance of the second capacitor 2041 is 0.3pF, and the inductance of the first inductor 2042 is 1nH.

In some embodiments, the capacitance of the third capacitor 2043 is 0.5pF, and the inductance of the second inductor 2044 is 6.2nH.

It should be noted that, the specific implementation of the "capacitor unit 202" may be various, including at least one capacitor or at least two capacitors connected in series or in series, and the first antenna 210 can be adjusted to achieve the decoupling gain.

In addition, the specific implementation of the "filter 204" may be implemented in various ways, including at least one capacitor and at least one inductor, in series or in parallel, and the first antenna 210 can be adjusted to achieve the decoupling gain.

Based on any one of the above embodiments, in some embodiments, the first antenna and the second antenna are metal frame antennas, the third antenna is an LDS antenna, and the working frequency band of the third antenna is greater than that of the second antenna; wherein a first distance between the third antenna and the first antenna is greater than a second distance between the third antenna and the second antenna. Therefore, the third antenna and the second antenna form a compact antenna structure, and the space utilization rate of the electronic equipment is improved. The first antenna and the second antenna are metal frame antennas, and mutual interference can be avoided by utilizing the adjusting component, so that the antenna performance of the second antenna is deteriorated.

Referring to fig. 11, in some embodiments, the electronic device 10 may further include one or more of the following components: a processing component 11, a memory 12, a power supply component 13, a multimedia component 14, an audio component 15, an input/output interface 16, a sensor component 17, and a communication component 18.

The processing component generally controls overall operation of the electronic device, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component may include one or more processors to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component may include one or more modules that facilitate interactions between the processing component and other components. For example, the processing component may include a multimedia module to facilitate interaction between the multimedia component and the processing component.

The memory is configured to store various types of data to support operations at the electronic device. Examples of such data include instructions of any application or method configured to operate on the electronic device, contact data, phonebook data, messages, pictures, video, and the like. The memory may be implemented by any type of volatile or nonvolatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The control main board comprises a processing component and a memory.

The power supply assembly provides power to the various components of the electronic device. Power components may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for electronic devices.

The multimedia component comprises the display module disclosed by the disclosure, and human-computer interaction is facilitated. If the display module includes a touch panel, the display module may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or sliding action, but also the duration and pressure associated with the touch or sliding operation. In some embodiments, the multimedia assembly includes a front camera and/or a rear camera. When the electronic device is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component is configured to output and/or input an audio signal. For example, the audio component includes a Microphone (MIC) configured to receive external audio signals when the electronic device is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may be further stored in a memory or transmitted via a communication component. In some embodiments, the audio assembly further comprises a speaker configured to output an audio signal.

The input/output interface provides an interface between the processing assembly and a peripheral interface module, which may be a keyboard, click wheel, button, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly includes one or more sensors configured to provide status assessment of various aspects of the electronic device. For example, the sensor assembly may detect an on/off state of the electronic device, a relative positioning of the assemblies, such as a display and keypad of the electronic device, a change in position of the electronic device or one of the assemblies of the electronic device, the presence or absence of user contact with the electronic device, an orientation or acceleration/deceleration of the electronic device, and a change in temperature of the electronic device. The sensor assembly may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly may also include a photosensitive element, such as a CMOS or CCD image sensor, configured for use in imaging applications. In some embodiments, the sensor assembly may further include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component is configured to facilitate communication between the electronic device and other devices in a wired or wireless manner. The electronic device may access a wireless network based on a communication standard, such as WiFi,2G, 3G, 4G, 6G, or the like, or a combination thereof. In one exemplary embodiment, the communication component receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present disclosure.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first," "second," etc. can include at least one such feature, either explicitly or implicitly. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless explicitly specified otherwise.

In the present disclosure, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.

In this disclosure, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "mounted," "positioned," "secured" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is considered as "fixed transmission connection" and the other element, the two elements may be fixed in a detachable connection manner, or may be fixed in a non-detachable connection manner, so that power transmission can be achieved, for example, sleeving, clamping, integrally forming and fixing, welding, etc., which may be achieved in the conventional technology, and no more details are needed. When an element is perpendicular or nearly perpendicular to another element, it is meant that the ideal conditions for both are perpendicular, but certain vertical errors may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples merely represent several embodiments of the present disclosure, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that variations and modifications can be made by those skilled in the art without departing from the inventive concepts of the present disclosure, which are within the scope of the present disclosure.

Claims

1. An antenna device, comprising:

the antenna assembly comprises a first antenna, a second antenna and a third antenna which is arranged in an insulating way with the first antenna and the second antenna, wherein an insulating space is arranged between the first antenna and the second antenna, the working frequency band of the second antenna is larger than that of the first antenna, and the working frequency band of the third antenna is different from that of the second antenna and that of the first antenna;

a feed assembly respectively matched with the first antenna, the second antenna and the third antenna; and

an adjustment assembly connected to the first antenna; the adjustment assembly is configured to isolate the first antenna from the second antenna and to gain the first antenna from the third antenna when the first antenna is in a non-operational state.

2. The antenna device according to claim 1, wherein the third antenna has a larger operating frequency band than the second antenna; the adjusting component comprises a switch module and an adjusting circuit which can be grounded, and the switch module is connected with the first antenna and the adjusting circuit in series;

when the first antenna is in a working state, the switch module is disconnected, and the first antenna and the regulating circuit are disconnected;

when the first antenna is in a non-working state, the switch module is closed, the first antenna is grounded through the adjusting circuit, so that the first antenna is isolated from the second antenna, and the first antenna is increased to be arranged with the third antenna.

3. The antenna device according to claim 2, wherein when the first antenna is in a non-operating state and the third antenna is in an operating state, the switch module is closed, and the first antenna is grounded through the adjusting circuit, so that the first antenna forms a parasitic branch of the third antenna.

4. The antenna device according to claim 2, wherein the adjusting circuit comprises a first ground terminal and a capacitive unit connected in series with the first ground terminal;

when the first antenna is in a working state, the switch module is disconnected, and the first antenna and the capacitor unit are disconnected;

when the first antenna is in a non-working state, the switch module is closed, and the first antenna is grounded through the capacitor unit.

5. The antenna device according to claim 4, wherein the capacitance value of the capacitance unit is adjustable.

6. The antenna device according to claim 4, wherein the capacitance unit comprises a first switch and at least two first capacitances connected in parallel with the switch module and the first ground terminal, at least one of the first capacitances being connected in series with the grounded first ground terminal through the first switch.

7. The antenna device according to claim 4, wherein the second antenna is a 2.4G wifi antenna, the third antenna is a 5G wifi antenna, and the capacitance value of the capacitance unit is 0.3pF to 0.7pF.

8. The antenna device according to claim 2, wherein the adjusting circuit further comprises a second ground terminal and a filter connected in series with the second ground terminal;

when the first antenna is in a working state, the switch module is disconnected, and the first antenna and the filter are disconnected;

when the first antenna is in a non-working state and the second antenna is in a working state, the switch module is closed, and the first antenna is connected with the second grounding terminal in series through the filter.

9. The antenna device according to claim 8, wherein the filter comprises a second capacitor and a first inductance in series with the second capacitor; alternatively, the filter includes a third capacitor and a second inductor connected in parallel with the third capacitor.

10. The antenna arrangement according to claim 9, characterized in that the second antenna is a 2.4G wifi antenna and the third antenna is a 5G wifi antenna; the capacitance value of the second capacitor is 0.3pF, and the inductance value of the first inductor is 1nH; or, the capacitance value of the third capacitor is 0.5pF, and the inductance value of the second inductor is 6nH.

11. The antenna device according to any one of claims 1 to 10, wherein the first antenna and the second antenna are metal frame antennas, the third antenna is an LDS antenna, and an operating frequency band of the third antenna is larger than that of the second antenna; wherein a first distance between the third antenna and the first antenna is greater than a second distance between the third antenna and the second antenna.

12. The antenna assembly of claim 11, wherein the antenna assembly comprises a metal center including a center body and a metal bezel including the first antenna and the second antenna, the second antenna being spaced from the center body to form a first gap, the first antenna being spaced from the center body to form a second gap, the second antenna being spaced from the first antenna to form a third gap, the second antenna having a radiation length less than the radiation length of the first antenna.

13. An electronic device comprising a housing assembly and the antenna arrangement of any one of claims 1 to 12, the antenna assembly being arranged in the housing assembly.

14. The electronic device of claim 13, further comprising a circuit board electrically connected to the antenna assembly, the circuit board having a ground network, the feed assembly and the adjustment assembly being disposed on the circuit board, the adjustment assembly being in series with the ground network.