CN117638455A - Antenna assembly and electronic equipment - Google Patents

Abstract

The invention discloses an antenna assembly and electronic equipment. The antenna assembly comprises a feed unit, a grounding unit and a radiating element. The radiating element comprises a first grounding part, a second grounding part and a feeding part, wherein the second grounding part is arranged at intervals with the first grounding part, the feeding part is arranged between the first grounding part and the second grounding part, the first grounding part and the second grounding part are respectively electrically connected with the grounding unit, the radiating element further comprises a first parasitic branch electrically connected with the first grounding part, the radiating element comprises a first radiator arranged between the first grounding part and the feeding part, a second radiator arranged between the second grounding part and the feeding part, and a third radiator arranged between the first grounding part and the second grounding part, the length of the second radiator is larger than that of the first radiator, and the feeding part is in feeding connection with the feeding unit so that the radiating element at least has a first modal current and a second modal current. The antenna assembly has a wider frequency band, is favorable for reducing antenna radiators and reduces the structural arrangement difficulty of electronic equipment.

Description

Antenna assembly and electronic equipment

Technical Field

The disclosure relates to the field of electronic technology, and in particular, to an antenna assembly 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 antennas are integrated on electronic devices to meet different communication requirements and improve the communication capability of the electronic devices.

However, in the related art, the structure of the electronic device is more and more compact, and part of the antennas are easily adversely affected by other antennas or other electronic devices, so that the difficulty in arranging the structure of the electronic device is increased.

Disclosure of Invention

The present disclosure provides an antenna assembly and an electronic device. The antenna assembly has a wider frequency band, is favorable for reducing antenna radiators and reduces the structural arrangement difficulty of electronic equipment.

The technical scheme is as follows:

according to a first aspect of embodiments of the present disclosure, there is provided an antenna assembly including a feeding unit, a grounding unit, and a radiating element. The radiating element comprises a first grounding part, a second grounding part and a feeding part, wherein the second grounding part is arranged at intervals with the first grounding part, the feeding part is arranged between the first grounding part and the second grounding part, the first grounding part and the second grounding part are respectively electrically connected with the grounding unit, the radiating element further comprises a first parasitic branch electrically connected with the first grounding part, the radiating element comprises a first radiator arranged between the first grounding part and the feeding part, a second radiator arranged between the second grounding part and the feeding part, and a third radiator arranged between the first grounding part and the second grounding part, the length of the second radiator is larger than that of the first radiator, and the feeding part is in feeding connection with the feeding unit so that the radiating element at least has a first modal current and a second modal current. Under the first mode current, the working frequency band of the third radiator at the 1/2 lambda wavelength is a first frequency band. Under the second mode current, the working frequency band of the second radiator at the 1/2 lambda wavelength is a second frequency band, and the working frequency band of the first parasitic branch at the 1/4 lambda wavelength is a third frequency band. The second frequency band has a frequency greater than the frequency of the first frequency band, and the third frequency band has a frequency at least partially greater than the frequency of the second frequency band.

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

the antenna assembly is provided with the parasitic branches and combines with a current distribution mode, so that the working frequency band of the third radiator at the 1/2 lambda wavelength is a first frequency band under the current of the first mode. And under the second mode current, the working frequency band of the second radiator at the 1/2 lambda wavelength is a second frequency band, and the working frequency band of the first parasitic branch at the 1/4 lambda wavelength is a third frequency band. And then the radiation piece can obtain different first frequency bands, second frequency bands and third frequency bands simultaneously in the working process, so that the radiation piece has the characteristic of a wide frequency band. The antenna assembly is applied to electronic equipment, is favorable for reducing antenna radiators, saves internal space and reduces the difficulty of structural arrangement of the electronic equipment.

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

in one embodiment, the radiating element further has a third mode current, and under the third mode current, an operating frequency band of the radiating element at the λ wavelength is a fourth frequency band, and a frequency of the fourth frequency band is greater than a frequency of the third frequency band.

In one embodiment, the radiating element further comprises a second parasitic branch electrically connected to the second ground, and the radiating element further has a fourth modal current. Under the fourth mode current, the working frequency band of the third radiator at the lambda wavelength is a fifth frequency band, and the working frequency band of the second parasitic branch at the 1/4 lambda wavelength is a sixth frequency band. The frequency of the fifth frequency band is greater than the frequency of the fourth frequency band, and the frequency of the sixth frequency band is at least partially greater than the frequency of the fifth frequency band.

In one embodiment, the radiating element further has a fifth mode current, and the operating frequency band of the radiating element at the 3/2λ wavelength is a seventh frequency band, and the frequency of the seventh frequency band is greater than the frequency of the sixth frequency band.

In one embodiment, the radiator further has a sixth mode current, and at the sixth mode current, the operating frequency band of the third radiator at the 3/2λ wavelength is an eighth frequency band, and the frequency of the eighth frequency band is greater than the frequency of the seventh frequency band.

In one embodiment, some of the first frequency band, the second frequency band, the third frequency band, the fourth frequency band, the fifth frequency band, the sixth frequency band, the seventh frequency band, and the eighth frequency band belong to the middle-high frequency band, and the rest belong to the ultra-high frequency band.

In one embodiment, the radiating element has a length L; the length of the first radiator is L1, the length of the second radiator is L2, the length of the first parasitic branch is L3, and the length of the first parasitic branch is L4; l: l1: l2: l3: l4=600: 90:291:124:95.

in one embodiment, part of the first frequency band, the second frequency band, the third frequency band, the fourth frequency band, the fifth frequency band and the sixth frequency band belongs to the MBH frequency band, and the rest belongs to any one or a combination of more than two of the N77 frequency band, the N78 frequency band and the N79 frequency band.

In one embodiment, the working frequency band of the radiation piece is 1.77GHz-3.7 GHz; and/or, when l=60 mm, l1=9mm, l2=29.1 mm, l3=12.4 mm, l4=9.5 mm; the first frequency band is 1.64GHz, the second frequency band is 2.07GHz, the third frequency band is 2.07 GHz-2.94 GHz, the fourth frequency band is 2.95GHz, the fifth frequency band is 3.12GHz, and the sixth frequency band is 3.12 GHz-4.02 GHz.

In one embodiment, the antenna assembly further includes a first switch disposed between the first ground and the ground unit; when the first change-over switch is turned off, the first radiator and the first parasitic branch form a fourth radiator; when the first change-over switch is communicated, the first grounding part is in grounding fit with the grounding unit.

And/or, the antenna assembly further comprises a second change-over switch arranged between the first grounding part and the grounding unit; when the second change-over switch is turned off, the second radiator and the second parasitic branch form a fifth radiator; when the second change-over switch is communicated, the second grounding part is in grounding fit with the grounding unit.

In one embodiment, the antenna assembly further includes a first switch disposed between the first ground and the ground unit; when the first change-over switch is turned off, the first radiator and the first parasitic branch form a fourth radiator; when the first change-over switch is communicated, the first grounding part is in grounding fit with the grounding unit.

According to a second aspect of embodiments of the present disclosure, there is also provided an electronic device comprising an antenna assembly according to any of the embodiments described above.

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

compared with the prior art, the antenna assembly in any embodiment of the electronic equipment can reduce the antenna radiator, save the internal space and reduce the structural arrangement difficulty of the electronic equipment.

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

in one embodiment, the electronic device includes a metal center, the metal center includes at least one frame antenna, and the at least one frame antenna is a radiating element.

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 illustrate schematically the embodiments of the present invention and their description to explain the technical solution of the present invention and do not constitute an undue limitation on the scope of the present invention.

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from 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 the antenna assembly shown in fig. 1.

Fig. 3 is a schematic structural view of the metal middle frame shown in fig. 1.

Fig. 4 is a schematic diagram of a current distribution of the radiator shown in fig. 2 under a first mode current.

Fig. 5 is a schematic diagram of a current distribution of the radiator shown in fig. 2 under a second mode current.

Fig. 6 is a schematic diagram of a current distribution of the radiator shown in fig. 2 under a third mode current.

Fig. 7 is a schematic diagram of a current distribution of the radiator shown in fig. 2 under a fourth mode current.

Fig. 8 is a schematic diagram of a current distribution of the radiator shown in fig. 2 under a fifth mode current.

Fig. 9 is a schematic diagram of a current distribution of the radiator shown in fig. 2 under a sixth mode current.

Fig. 10 is a smith chart of the radiator shown in fig. 2.

Fig. 11 is a schematic diagram of the antenna performance of the radiator shown in fig. 2.

Fig. 12 is a schematic diagram of radiation efficiency of the radiation member shown in fig. 2.

Fig. 13 is a schematic structural diagram of an antenna assembly according to an embodiment.

Fig. 14 is a schematic diagram of an internal hardware structure of the electronic device shown in fig. 1.

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. an antenna assembly; 110. A radiating member; 111. a first grounding part; 112. a second grounding part; 113. a power feeding section; 114. a first radiator; 115. A second radiator; 116. a first parasitic branch; 117. a third radiator; 118. a second parasitic branch; 120. a power feeding unit; 130. a grounding unit; 140. a first changeover switch; 150. a third change-over switch; 200. a metal middle frame; 210. A bezel antenna.

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.

In the related art, however, the structure of the electronic device is more and more compact, the radiation performance of the frame antenna is easily affected by other metal devices, and the arrangement space is limited, which increases the difficulty of the structural arrangement 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 on the metal frame, and when the metal trim of the mobile phone camera is too large, the antenna performance of the frame antenna disposed close to the metal trim is seriously deteriorated. If the area cannot be used without an antenna, the communication frequency band of the electronic device is different. And the area continues to design the frame antenna or designs the antenna of the communication frequency band in other places, the internal structure arrangement of the electronic equipment is certainly required to be adjusted, and the arrangement difficulty is increased.

Based on this, it is necessary to provide an antenna assembly, which can switch between at least two different operating frequency bands by using a limited frame antenna, so as to reduce difficulty in structural arrangement of electronic devices.

For a better understanding of the antenna assembly of the present disclosure, the following description will be made in connection with an electronic device in which the antenna assembly is applied.

As shown in fig. 1-2, in an embodiment of the present disclosure, an electronic device 10 is provided that includes an antenna assembly 100 as described above.

As shown in fig. 2 in combination with fig. 4 and fig. 5, the antenna assembly 100 includes a radiator 110, a feeding unit 120, and a grounding unit 130. The radiator 110 includes a first grounding portion 111, a second grounding portion 112 disposed at a distance from the first grounding portion 111, and a feeding portion 113 disposed between the first grounding portion 111 and the second grounding portion 112, the first grounding portion 111 and the second grounding portion 112 are electrically connected to the grounding unit 130, respectively, the radiator 110 further includes a first parasitic branch 116 electrically connected to the first grounding portion 111, the radiator 110 includes a first radiator 114 disposed between the first grounding portion 111 and the feeding portion 113, a second radiator 115 disposed between the second grounding portion 112 and the feeding portion 113, and a third radiator 117 disposed between the first grounding portion 111 and the second grounding portion 112, the length of the second radiator 115 is greater than the length of the first radiator 114, and the feeding portion 113 is electrically connected to the feeding unit 120, so that the radiator 110 has at least a first modal current and a second modal current. Wherein, under the first mode current, the operating frequency band of the third radiator 117 at the 1/2λ wavelength is the first frequency band. Under the second mode current, the operating frequency band of the second radiator 115 at the 1/2λ wavelength is a second frequency band, and the operating frequency band of the first parasitic branch 116/4λ wavelength is a third frequency band. The second frequency band has a frequency greater than the frequency of the first frequency band, and the third frequency band has a frequency at least partially greater than the frequency of the second frequency band.

In addition, since the antenna assembly 100 has a wide frequency band, it can cover more frequency bands. Compared with the traditional IFA antenna with single feed and single radiator, the IFA antenna can reduce the radiation requirements of relevant frequency bands under the conditions of a switch circuit and a matching circuit, thereby being beneficial to reducing the cost and the feeding difficulty of the antenna.

It will be appreciated that the third radiator 117 is equal to the first radiator 114+ the second radiator 115.

It should be noted that, when the object acts as a radiator, the modal currents are understood to be such that when the current distribution on the object is broken down into innumerable ones, each modal current radiates a modal pattern independent of the other modal currents, the radiation pattern of the object is a linear combination of each modal pattern, and the characteristics thereof depend on the shape of the object itself.

And in connection with Characteristic mode analysis of PEC bodies using combined field integral equation, an electric field integral equation over an ideal conductor is presented, which can be represented by RWG basis functions in the moment method, where a generalized eigenvalue equation is to be derived from the impedance matrix Z. The generalized eigenvalue equation is independent of any particular excitation, and finally, the generalized eigenvalue equation can be derived: XJ _n ＝λ _n RJ _n . Wherein J is _n Representing modal current; n represents the amount of modal current present; r impedance; x is a calibration value. And based thereon, performance analysis of the radiator 110 at different modal currents may be performed.

The specific implementation of the feeding unit 120 may be various, and the feeding of the radiating element 110 may be achieved. For example, the feeding unit 120 is a feeding network and is disposed on a circuit board.

The grounding unit 130 may be implemented in various ways, and may be capable of grounding the radiation member 110. For example, the grounding unit 130 is a grounding network and is disposed on a circuit board. For example, the electronic device 10 includes a metal housing provided with a grounding unit 130.

It should be noted that the electronic device 10 of the present disclosure may include an electronic product having a communication function, such as a distance measuring device, a scanning device, a photographing device, a handheld device, a vehicle-mounted device, a wearable device, a monitoring device, a cellular phone (cellular phone), a smart phone (smart phone), a personal digital assistant (personal digital assistant) computer, a tablet computer, a laptop computer, a video camera, a video recorder, a camera, a smart watch (smart watch), a smart bracelet (smart wstband), a vehicle-mounted computer, and the like.

As shown in fig. 3, in some embodiments, the electronic device 10 includes a metal middle frame 200, the metal middle frame 200 includes at least one frame antenna 210, and the at least one frame antenna 210 is a radiator 110. In this way, the radiating element 110 is formed by using the metal middle frame 200 of the electronic device 10, which is beneficial to reducing the difficulty of arranging the antenna, so that the structural arrangement of the electronic device 10 is easier.

On the basis of any of the above embodiments, as shown in fig. 2 and in conjunction with fig. 6, in some embodiments, the radiation element 110 further has a third mode current, and under the third mode current, an operating frequency band of the radiation element 110 at λ wavelength is a fourth frequency band, and the frequency of the fourth frequency band is greater than the frequency of the third frequency band. In this way, the operating frequency band of the radiator 110 at λ wavelength can be used as the fourth frequency band under the third mode current, so as to further widen the frequency band width of the antenna assembly 100 of the present disclosure.

Based on any of the above embodiments, as shown in fig. 2 and in conjunction with fig. 7, in some embodiments, the radiator 110 further includes a second parasitic branch 118 electrically connected to the second grounding portion 112, and the radiator 110 further has a fourth modal current. In the fourth mode current, the operating frequency band of the third radiator 117 at λ is the fifth frequency band, and the operating frequency band of the second parasitic branch 118 at 1/4 λ is the sixth frequency band. The frequency of the fifth frequency band is greater than the frequency of the fourth frequency band, and the frequency of the sixth frequency band is at least partially greater than the frequency of the fifth frequency band. In this way, by setting the second parasitic branch 118, and under the fourth mode current, the operating frequency band of the third radiator 117 at the λ wavelength is utilized as the fifth frequency band, the operating frequency band of the second parasitic branch 118 at the 1/4λ wavelength is the sixth frequency band, and the frequency band width of the antenna assembly 100 of the present disclosure is widened again.

On the basis of any of the above embodiments of the second parasitic branch 118, as shown in fig. 2 and in conjunction with fig. 8, in some embodiments, the radiator 110 further has a fifth mode current, and the operating frequency band of the radiator 110 at the 3/2λ wavelength is a seventh frequency band, where the frequency of the seventh frequency band is greater than the frequency of the sixth frequency band. In this way, the operating frequency band of the radiating element 110 at the 3/2λ (higher order mode) wavelength can be used as the seventh frequency band under the fifth mode current, so that the frequency band width of the antenna assembly 100 of the present disclosure is further widened, and the radiating element 110 has a combination mode of multiple frequency bands, which can be selected according to time requirements.

On the basis of any of the above embodiments of the second parasitic branch 118, as shown in fig. 2 and in conjunction with fig. 9, in some embodiments, the radiator 110 further has a sixth mode current, and under the sixth mode current, the operating frequency band of the third radiator 117 at the 3/2λ wavelength is an eighth frequency band, and the frequency of the eighth frequency band is greater than the frequency of the seventh frequency band. In this way, the frequency band width of the antenna assembly 100 of the present disclosure may be further widened by using the operating frequency band of the third radiator 117 at the 3/2λ (higher order mode) wavelength as the eighth frequency band under the sixth mode current, so that the radiator 110 has a combination mode of multiple frequency bands, and may be selected according to time requirements.

It should be noted that, under any of the above-mentioned modal currents, the first radiator 114 also has a corresponding operating frequency band, which may be selected according to the actual situation, and further, the frequency band width of the antenna assembly 100 of the present disclosure may also be utilized by the first radiator 114. For example, in some 6G bands, excitation may be provided by the first radiator 114.

Based on any one of the embodiments of the second parasitic branch 118, as shown in fig. 10, in some embodiments, some of the first frequency band, the second frequency band, the third frequency band, the fourth frequency band, the fifth frequency band, the sixth frequency band, the seventh frequency band, and the eighth frequency band belong to the middle-high frequency band, and the rest belong to the ultra-high frequency band. Thus, the antenna assembly 100 can cover the common radiation frequency band in industry, for example, 1.77GHz-3.7GHz, and has wide application range.

Specifically, the first frequency band, the second frequency band and the third frequency band are partially medium-high frequency bands. For example, 1.5GHZ to 2.7GHZ.

The third frequency band part, the fourth frequency band, the fifth frequency band, the sixth frequency band, the seventh frequency band and the eighth frequency band are ultrahigh frequency bands. For example, 2.8GHZ to 4.5GHZ.

In other embodiments, the antenna assembly 100 can cover medium and low frequency bands commonly used in the industry. For example, 0.7GHz to 2GHz.

Based on any of the above embodiments of the second parasitic stub 118, in some embodiments, the length of the radiating element 110 is L; the length of the first radiator 114 is L1, the length of the second radiator 115 is L2, the length of the first parasitic stub 116 is L3, and the length of the first parasitic stub 116 is L4; l: l1: l2: l3: l4=600: 90:291:124:95. in this way, the radiation performance of the radiation member 110 is conveniently adjusted to adapt to a desired frequency band.

Further, in some embodiments, some of the first frequency band, the second frequency band, the third frequency band, the fourth frequency band, the fifth frequency band, and the sixth frequency band belong to MBH frequency bands, and the others belong to any one or a combination of two or more of N77 frequency bands, N78 frequency bands, and N79 frequency bands. Thus, the radiating element 110 can have a radiation frequency band of a mid-high frequency antenna and an ultra-high frequency antenna, and can cover the common 3G, 4G and 5G frequency bands in the industry.

It should be noted that the MHB band ranges from 1700MHz to 2700MHz, and includes 3G and 4G bands. In addition, the 5G frequency band of China mobile is 4800 MHz-4900 MHz, which is 100MHz altogether, and the frequency band number is N79. The 5G frequency band of China telecom is 3400 MHz-3500 MHz and 100MHz total, and the frequency band number is N78. The 5G frequency band of China Unicom is 3500 MHz-3600 MHz and 100MHz altogether, and the frequency band number is N7.

Further, as shown in fig. 2, in some embodiments, l1=9mm, l2=29.1 mm, l3=12.4 mm, l4=9.5 mm when l=60 mm; the first frequency band is 1.64GHz, the second frequency band is 2.07GHz, the third frequency band is 2.07 GHz-2.94 GHz, the fourth frequency band is 2.95GHz, the fifth frequency band is 3.12GHz, the sixth frequency band is 3.12 GHz-4.02 GHz, the seventh frequency band is 4.03GHz, and the eighth frequency band is 4.77GHz. Thus, the radiation element 110 can obtain the first frequency band of 1.64GHz, the second frequency band of 2.07GHz, the third frequency band of 2.07 GHz-2.94 GHz, the fourth frequency band of 2.95GHz, the fifth frequency band of 3.12GHz and the sixth frequency band of 3.12 GHz-4.02 GHz, and the third frequency band works in the MHB frequency band and the N78 frequency band. That is, the operating band of the radiator 110 is 1.77GHz-3.7GHz, with a relative bandwidth of 74.1%. Further referring to fig. 10-12, fig. 10 is a smith chart of the radiator 110 shown in fig. 2. Fig. 11 is a schematic diagram illustrating the antenna performance of the radiator 110 shown in fig. 2. Fig. 12 is a schematic view of radiation efficiency of the radiation member 110 shown in fig. 3. The peak efficiency of the radiation element 110 of the antenna assembly 100 in the frequency band is-2.9 dB, the average bandwidth is-4.75 dB, the radiation performance requirements of the MHB frequency band and the N78 frequency band can be well met, the communication requirements of the electronic device 10 can be met, and the difficulty of arranging the antenna positions of the electronic device 10 can be reduced.

On the basis of any of the above embodiments, as shown in fig. 13, in some embodiments, the antenna assembly 100 further includes a first switch 140 disposed between the first grounding portion 111 and the grounding unit 130; when the first switch 140 is turned off, the first radiator 114 and the first parasitic branch 116 form a fourth radiator; when the first switch 140 is connected, the first grounding portion 111 is grounded to the grounding unit 130. In this way, the first switch 140 is utilized to adjust the radiation length of the radiation element 110 in combination with the relationship between the first radiator 114 and the first parasitic branch 116, so that the radiation element 110 can be switched out of other frequency bands, and the radiation element 110 not only has a wide frequency band characteristic, but also has multiple radiation modes.

It will be appreciated that the fourth radiator is equal to the first radiator 114+ the first parasitic stub 116.

On the basis of any of the above embodiments, as shown in fig. 13, in some embodiments, the antenna assembly 100 further includes a second switch disposed between the first grounding portion 111 and the grounding unit 130; when the second change-over switch is turned off, the second radiator 115 and the second parasitic branch 118 constitute a fifth radiator; when the second switch is connected, the second grounding portion 112 is grounded to the grounding unit 130. In this way, the second switch is utilized to combine the relationship between the second radiator 115 and the second parasitic branch 118 to adjust the radiation length of the radiation element 110, so that the radiation element 110 can be switched out of other frequency bands.

It will be appreciated that the fifth radiator is equal to the second radiator 115+ the second parasitic stub 118.

It should be noted that, after the effective radiation length of the radiation element is changed by using the change-over switch, the adjustment can be performed by combining with the matching circuit, so as to obtain the required frequency band and radiation performance. The specific implementation modes of the matching circuit can be various, and any matching circuit meeting the use requirement can be adopted. For example, CN112928445a discloses a matching circuit implementation.

Referring to fig. 14, 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.

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 (13)

1. An antenna assembly, comprising:

a power feeding unit;

a grounding unit;

a radiating element including a first grounding portion, a second grounding portion disposed at a distance from the first grounding portion, and a feeding portion disposed between the first grounding portion and the second grounding portion, the first grounding portion and the second grounding portion being electrically connected to the ground unit, respectively, the radiating element further including a first parasitic branch electrically connected to the first grounding portion, the radiating element including a first radiator disposed between the first grounding portion and the feeding portion, a second radiator disposed between the second grounding portion and the feeding portion, and a third radiator disposed between the first grounding portion and the second grounding portion, the second radiator having a length greater than a length of the first radiator, the feeding portion being connected to the feeding unit such that the radiating element has at least a first modal current and a second modal current;

under the first modal current, the working frequency band of the third radiator at the 1/2 lambda wavelength is a first frequency band; under the second modal current, the working frequency band of the second radiator at the 1/2 lambda wavelength is a second frequency band, and the working frequency band of the first parasitic branch at the 1/4 lambda wavelength is a third frequency band; the frequency of the second frequency band is larger than the frequency of the first frequency band, and the frequency of the third frequency band is at least partially larger than the frequency of the second frequency band.

2. The antenna assembly of claim 1, wherein the radiating element further has a third modal current at which the radiating element operates in a fourth frequency band at the λ wavelength, the fourth frequency band having a frequency greater than the third frequency band.

3. The antenna assembly of claim 2, wherein the radiating element further comprises a second parasitic stub electrically connected to the second ground, the radiating element further having a fourth modal current; under the fourth mode current, the working frequency band of the third radiator at the lambda wavelength is a fifth frequency band, and the working frequency band of the second parasitic branch at the 1/4 lambda wavelength is a sixth frequency band;

the frequency of the fifth frequency band is greater than the frequency of the fourth frequency band, and the frequency of the sixth frequency band is at least partially greater than the frequency of the fifth frequency band.

4. The antenna assembly of claim 3, wherein the radiating element further has a fifth modal current at which the radiating element operates in a seventh frequency band at a 3/2λ wavelength, the seventh frequency band having a frequency that is greater than the sixth frequency band.

5. The antenna assembly of claim 4, wherein the radiator further has a sixth modal current at which the third radiator operates in an eighth frequency band at a 3/2λ wavelength, the eighth frequency band having a frequency greater than the seventh frequency band.

6. The antenna assembly of claim 5, wherein a portion of the first frequency band, the second frequency band, the third frequency band, the fourth frequency band, the fifth frequency band, the sixth frequency band, the seventh frequency band, and the eighth frequency band belong to a mid-high frequency band, and the remainder belong to an ultra-high frequency band.

7. An antenna assembly according to any one of claims 3 to 6, wherein the length of the radiating element is L; the length of the first radiator is L1, the length of the second radiator is L2, the length of the first parasitic branch is L3, and the length of the first parasitic branch is L4; l: l1: l2: l3: l4=600: 90:291:124:95.

8. the antenna assembly of claim 7, wherein a portion of the first frequency band, the second frequency band, the third frequency band, the fourth frequency band, the fifth frequency band, and the sixth frequency band belong to an MBH frequency band, and the remainder belong to any one of or a combination of two or more of an N77 frequency band, an N78 frequency band, and an N79 frequency band.

9. The antenna assembly of claim 7, wherein the radiating element has an operating frequency range of 1.77GHz to 3.7GHz; and/or, when l=60 mm, l1=9mm, l2=29.1 mm, l3=12.4 mm, l4=9.5 mm; the first frequency band is 1.64GHz, the second frequency band is 2.07GHz, the third frequency band is 2.07 GHz-2.94 GHz, the fourth frequency band is 2.95GHz, the fifth frequency band is 3.12GHz, and the sixth frequency band is 3.12 GHz-4.02 GHz.

10. The antenna assembly of any one of claims 3 to 9, further comprising a first switch disposed between the first ground and the ground element; when the first change-over switch is turned off, the first radiator and the first parasitic branch form a fourth radiator; when the first change-over switch is communicated, the first grounding part is in grounding fit with the grounding unit;

and/or, the antenna assembly further comprises a second change-over switch arranged between the first grounding part and the grounding unit; when the second change-over switch is turned off, the second radiator and the second parasitic branch form a fifth radiator; when the second change-over switch is communicated, the second grounding part is in grounding fit with the grounding unit.

11. The antenna assembly of any one of claims 1 to 9, further comprising a first switch disposed between the first ground and the ground element; when the first change-over switch is turned off, the first radiator and the first parasitic branch form a fourth radiator; when the first change-over switch is communicated, the first grounding part is in grounding fit with the grounding unit.

12. An electronic device comprising the antenna assembly of any one of claims 1 to 11.

13. The electronic device of claim 12, wherein the electronic device comprises a metal bezel, the metal bezel comprises at least one bezel antenna, and at least one of the bezel antennas is the radiating element.