CN112821064A

CN112821064A - Antenna assembly and electronic equipment

Info

Publication number: CN112821064A
Application number: CN202011626164.7A
Authority: CN
Inventors: 雍征东
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-18
Also published as: WO2022142785A1

Abstract

The embodiment of the application discloses an antenna assembly and electronic equipment. The antenna assembly comprises a first antenna, a second antenna and a feeding structure, wherein the first antenna comprises a first side edge and a second side edge which are adjacent, the first side edge of the first antenna is grounded, a first feeding point is arranged on the second side edge of the first antenna, and at least one first gap parallel to the first side edge is arranged on the first antenna; the second antenna comprises a fourth side and a fifth side which are adjacent, the fourth side of the second antenna is parallel to the first side of the first antenna and is grounded, the fifth side of the second antenna is provided with a second feeding point, and the second antenna is provided with at least one second gap parallel to the fourth side; the feed structure is connected with the first feed point and the second feed point and used for feeding excitation signals into the first antenna and the second antenna so as to excite the first antenna to generate resonance of a first frequency band and excite the second antenna to generate resonance of a second frequency band. The antenna assembly has a small volume.

Description

Antenna assembly and electronic equipment

Technical Field

The application relates to the technical field of communication, in particular to an antenna assembly and electronic equipment.

Background

In the related art, an electronic device may adopt UWB (ultra Wide band) positioning technology to achieve indoor positioning, but with the development of communication technology, the electronic device needs to support more and more types of radio frequency signals, for example, radio frequency signals such as 4G, 5G, WiFi, etc., so that more antennas are arranged inside the electronic device, and further, the space inside the electronic device is smaller and smaller, which is not enough to arrange a UWB antenna to achieve positioning. Therefore, positioning is realized by arranging the UWB antenna on the electronic device with a small size, which is a problem to be solved urgently.

Disclosure of Invention

The embodiment of the application provides an antenna assembly and electronic equipment. The antenna assembly is small in size, can be arranged in electronic equipment with small internal space, and achieves positioning of communication objects by the electronic equipment.

In a first aspect, an embodiment of the present application provides an antenna assembly, including:

the antenna comprises a first antenna and a second antenna, wherein the first antenna comprises a first side edge and a second side edge which are adjacent to each other, the first side edge of the first antenna is grounded, a first feeding point is arranged on the second side edge of the first antenna, and at least one first gap parallel to the first side edge is arranged on the first antenna;

the second antenna comprises a fourth side and a fifth side which are adjacent, the fourth side of the second antenna is parallel to the first side of the first antenna and is grounded, the fifth side of the second antenna is provided with a second feeding point, and the second antenna is provided with at least one second gap parallel to the fourth side;

and the feed structure is connected with the first feed point and the second feed point and is used for feeding excitation signals into the first antenna and the second antenna so as to excite the first antenna to generate resonance of a first frequency band and excite the second antenna to generate resonance of a second frequency band.

In a second aspect, an embodiment of the present application further provides an electronic device, where the electronic device includes the antenna assembly provided in the embodiment of the present application, and the antenna assembly is configured to receive an ultra-wideband radio frequency signal transmitted by a communication object, and the electronic device further includes:

a processor electrically connected to the antenna assembly, the processor configured to process the ultra-wideband radio frequency signal received by the antenna assembly to determine a location of the communicating object.

In an embodiment of the present application, an antenna assembly includes a first antenna, a second antenna, and a feeding structure, where the first antenna includes a first side and a second side that are adjacent to each other, the first side of the first antenna is grounded, the second side of the first antenna is provided with a first feeding point, and the first antenna is provided with at least one first slot parallel to the first side; the second antenna comprises a fourth side and a fifth side which are adjacent, the fourth side of the second antenna is parallel to the first side of the first antenna and is grounded, the fifth side of the second antenna is provided with a second feeding point, and the second antenna is provided with at least one second gap parallel to the fourth side; the feed structure is connected with the first feed point and the second feed point and used for feeding excitation signals into the first antenna and the second antenna so as to excite the first antenna to generate resonance of a first frequency band and excite the second antenna to generate resonance of a second frequency band. The antenna assembly has a small volume.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application.

Fig. 2 is a first structural schematic diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 3 is a second structural schematic diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 4 is a third structural schematic diagram of an antenna assembly provided by an embodiment of the present application.

Fig. 5 is a fourth structural schematic diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 6 is a fifth structural schematic diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 7 is a sixth structural schematic diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 8 is a seventh structural schematic diagram of an antenna assembly provided in an embodiment of the present application.

Fig. 9 is a circuit schematic diagram of an antenna assembly provided by an embodiment of the present application.

Fig. 10 is a first operating current diagram of an antenna assembly provided by an embodiment of the present application.

Fig. 11 is a second operating current diagram of an antenna assembly provided by an embodiment of the present application

Fig. 12 is a reflection parameter diagram of an antenna assembly provided by an embodiment of the present application.

Fig. 13 is a system efficiency graph of an antenna assembly provided by an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, terms such as "first", "second", are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined by terms such as "first," "second," etc., may explicitly or implicitly include one or more of the recited features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The embodiment of the application provides electronic equipment. The electronic device may be a smart phone, a tablet computer, or other devices, and may also be a game device, an AR (Augmented Reality) device, an automobile, a data storage device, an audio playing device, a video playing device, a notebook, a desktop computing device, or other devices.

Referring to fig. 1, fig. 1 is a schematic view of a first structure of an electronic device according to an embodiment of the present disclosure.

The electronic device 100 includes a display screen 10, a housing 20, a circuit board 30, and a battery 40.

The display screen 10 is disposed on the casing 20 to form a display surface of the electronic device 100 for displaying images, texts, and other information. The Display screen 10 may include a Liquid Crystal Display (LCD) or an Organic Light-Emitting Diode (OLED) Display screen.

It will be appreciated that the display screen 10 may include a display surface and a non-display surface opposite the display surface. The display surface is a surface of the display screen 10 facing a user, i.e. a surface of the display screen 10 visible to a user on the electronic device 100. The non-display surface is a surface of the display screen 10 facing the inside of the electronic device 100. The display surface is used for displaying information, and the non-display surface does not display information.

It will be appreciated that a cover plate may also be provided over the display screen 10 to protect the display screen 10 from scratching or water damage. The cover plate may be a transparent glass cover plate, so that a user can observe contents displayed on the display screen 10 through the cover plate. It will be appreciated that the cover plate may be a glass cover plate of sapphire material.

The housing 20 is used to form an outer contour of the electronic apparatus 100 so as to accommodate electronic devices, functional components, and the like of the electronic apparatus 100, while forming a sealing and protecting function for the electronic devices and functional components inside the electronic apparatus. For example, functional components such as a camera, a circuit board, a vibration motor, etc. of the electronic apparatus 100 may be disposed inside the housing 20. It will be appreciated that the housing 20 may include a center frame and a rear cover.

The middle frame may have a thin plate-like or sheet-like structure, or may have a hollow frame structure. The middle frame is used for providing a supporting function for the electronic devices or functional components in the electronic device 100 so as to mount the electronic devices or functional components of the electronic device 100 together. For example, the middle frame may be provided with a groove, a protrusion, or the like, so as to facilitate installation of the electronic device or the functional component of the electronic apparatus 100. It is understood that the material of the middle frame may include metal or plastic.

The rear cover is connected with the middle frame. For example, the rear cover may be attached to the middle frame by an adhesive such as a double-sided tape to achieve connection with the middle frame. The rear cover is used for sealing the electronic devices and functional components of the electronic device 100 inside the electronic device 100 together with the middle frame and the display screen 10, so as to protect the electronic devices and functional components of the electronic device 100. It will be appreciated that the rear cover may be integrally formed. In the forming process of the rear cover, structures such as a rear camera mounting hole can be formed on the rear cover. It is understood that the material of the rear cover may also include metal or plastic.

A circuit board 30 is disposed inside the housing 20. For example, the circuit board 30 may be mounted on a middle frame of the case 20 to be fixed, and the circuit board 30 is sealed inside the electronic device by a rear cover. Specifically, the circuit board may be installed at one side of the loading plate, and the display screen is installed at the other side of the loading plate. The circuit board 30 may be a main board of the electronic device 100. One or more of functional components such as a processor, a camera, an earphone interface, an acceleration sensor, a gyroscope, and a motor may also be integrated on the circuit board 30. Meanwhile, the display screen 10 may be electrically connected to the circuit board 30 to control the display of the display screen 10 by a processor on the circuit board 30.

The battery 40 is disposed inside the case 20. For example, the battery 40 may be mounted on a middle frame of the case 20 to be fixed, and the battery 40 is sealed inside the electronic device by a rear cover. Meanwhile, the battery 40 is electrically connected to the circuit board 30 to enable the battery 40 to supply power to the electronic device 100. The circuit board 30 may be provided thereon with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 40 to the various electronic devices in the electronic apparatus 100.

The electronic device 100 is further provided with an antenna assembly, and the antenna assembly is configured to radiate a radio frequency signal to the outside and receive a radio frequency signal from the outside, so as to implement a wireless communication function of the electronic device 100. The radio frequency signal may include one of a cellular network signal, a Wireless Fidelity (Wi-Fi) signal, a positioning signal, and the like.

Referring to fig. 2, fig. 2 is a schematic view of a first structure of an antenna assembly according to an embodiment of the present application.

The antenna assembly may be a uwb (ultra wide) antenna. The UWB antenna can be accurately positioned indoors, for example, an electronic device equipped with the UWB antenna can recognize other nearby UWB tag antennas through the UWB antenna, so that the positions of other electronic devices can be determined according to the UWB tag antennas of other electronic devices.

UWB wireless communication is a communication method using pulses with extremely short time intervals (less than 1ns) without using a carrier, and is a carrier-free communication technique that transmits data using narrow non-sinusoidal pulses on the order of nanoseconds to microseconds. By transmitting very low power signals over a wide frequency spectrum, UWB can achieve data transmission rates of hundreds of Mbit/s to Gbit/s over a range of about 10 meters. The anti-interference performance is strong, the transmission rate is high, the system capacity is large, and the transmission power is very small. UWB antenna transmission power is very small and communication devices can communicate with less than 1mW of transmission power. The low transmitting power greatly prolongs the working time of the system power supply. Moreover, the emission power is low, and the influence of electromagnetic wave radiation on a human body is small.

However, when the internal space of the electronic device is very narrow, the conventional antenna design method cannot arrange the UWB antenna inside the electronic device, and the size of the antenna assembly needs to be reduced, so that the length, the width and the height of the antenna assembly are reduced. However, in the case of the antenna assembly being reduced in size, the frequency of the radio frequency signal that can be transmitted by the UWB antenna may be changed, thereby affecting the radiation performance of the antenna assembly and the positioning effect of the electronic device.

In the embodiment of the present application, an antenna assembly is provided, which includes an antenna 50, a dielectric substrate 60, and a metal floor 70, wherein the antenna 50 is disposed on the dielectric substrate 60, and the metal floor 70 is disposed on the other side of the dielectric substrate 60 facing away from the antenna 50. I.e. the dielectric substrate 60 is arranged between the metal floor 70 and the antenna 50.

The antenna component has a thin thickness. For example, the thickness from the antenna 50 to the metal floor 70 may reach the millimeter level, and the antenna assembly may be very thin and light and may be disposed in an electronic device with a small internal space.

Meanwhile, the antenna 50 is connected with a corresponding feeder line, and the feeder line may also be disposed on the dielectric substrate 60. The dielectric substrate 60 is provided with a through hole through which a feed line can pass, and the feed line can be connected to a corresponding feed source of the antenna assembly through the through hole.

In some embodiments, corresponding through holes are provided in the metal floor 70, the through holes in the dielectric substrate 60 and the through holes in the metal floor 70 are aligned, and the feed line of the antenna 50 can be connected to the corresponding feed of the antenna assembly through the two aligned through holes. Therefore, the antenna assembly is fed and can radiate ultra-wideband radio frequency signals.

Referring to fig. 3, fig. 3 is a second structural schematic diagram of an antenna assembly according to an embodiment of the present application.

As shown in fig. 3, the antenna assembly includes a first antenna 510 and a second antenna 520. The first antenna 510 includes at least one first slot 514, and the second antenna 520 includes at least one second slot 524.

The first antenna 510 includes a first side 511, a second side 512, and a third side 513, wherein the first side 511 and the second side 512 are adjacent. The second antenna 520 includes a fourth side 521, a fifth side 522 and a sixth side 523, the fourth side 521 and the fifth side 522 being adjacent. The fourth side 521 is parallel to the first side 511.

In some embodiments, in order to improve the radiation performance of the first antenna 510, a plurality of first ground points 515 are disposed on the first side 511 of the first antenna 510, and the plurality of first ground points 515 are connected to the system ground of the antenna assembly, and the radiation performance of the first antenna 510 can be improved by disposing the first ground points 515 on the first side 511 to realize the ground.

In order to improve the radiation performance of the second antenna 520, a plurality of second grounding points 524 are disposed on the fourth side 521 of the second antenna 520, and the plurality of second grounding points 524 are connected to the system ground of the antenna assembly, and the second grounding point 524 is disposed on the fourth side 521 to realize grounding, so that the radiation performance of the second antenna 520 can be improved. Wherein the system ground of the antenna assembly may be a metal floor 70.

In some embodiments, the radiator shape of the first antenna 510 is rectangular, and the first ground point 515 may be located at a first side 511 of the first antenna 510. The first antenna 510 includes a first slot 514, and the first slot 514 is disposed on either side except for a first ground point 515, and has a first opening formed on the side. That is, the first slit 514 communicates with the external space through the first opening. For example, the first slot 514 may be disposed on the third side 513 of the first antenna 510, and a first opening may be formed.

The radiator of the second antenna 520 has a rectangular shape, and the second ground point 524 may be located at the fourth side 521 of the second antenna 520. The second antenna 520 includes a second slot 524, and the second slot 524 is disposed on any side except the second ground point 524, and has a second opening formed on the side. That is, the second slit 524 communicates with the external space through the second opening. For example, the second slot 524 forms a second opening on the sixth side 523 of the second antenna 520.

In some embodiments, the first antenna 510 and the second antenna 520 are separate entities, and the first antenna 510 and the second antenna 520 are not connected. The first side 511 of the first antenna 510 may face away from the second antenna 520 or the second side 511 may face toward the second antenna 520. The fourth side 521 of the second antenna 520 may face toward the first antenna 510 or away from the first antenna 510.

In some embodiments, the first feeding point of the first antenna 510 may be disposed at the second side 512, and the second feeding point of the second antenna 520 may be disposed at the fifth side 522. The first feeding point and the second feeding point may connect the feeding structure. The feed structure is configured to output an excitation signal that excites the first antenna 510 to produce resonance in a first frequency band and excites the second antenna 520 to produce resonance in a second frequency band.

For example, the first antenna 510 and the second antenna 520 may share a signal source, which may provide ultra-wideband radio frequency signals of at least two frequency bands. The first antenna 510 is for transmitting a first ultra-wideband radio frequency signal and the second antenna 520 is for transmitting a second ultra-wideband radio frequency signal. The first ultra-wideband radio frequency signal may be an ultra-wideband radio frequency signal in a 6.5GHz frequency band range, and the second ultra-wideband radio frequency signal may be an ultra-wideband radio frequency signal in an 8GHz frequency band range.

With continued reference to fig. 4, fig. 4 is a schematic diagram illustrating a third structure of an antenna element according to an embodiment of the present application.

The size of the first gap 514 is different from that of the second gap 524, the gap length of the first gap 514 is D1, and the gap length of the second gap 524 is D2.

In some embodiments, the slot length D1 of the first slot 514 is greater than the slot length D2 of the second slot 524, and the first antenna 510 may be configured to generate resonance in a first frequency band to transmit a first ultra-wideband radio frequency signal and the second antenna 520 may be configured to generate resonance in a second frequency band to transmit a second ultra-wideband radio frequency signal. Wherein the highest frequency of the first frequency band is lower than the lowest frequency of the second frequency band.

When the slot size on the first antenna 510 or the second antenna 520 is smaller, the frequency of the ultra-wideband radio frequency signal transmitted by the first antenna 510 or the second antenna 520 is higher. When the size of the slot on the first antenna 510 or the second antenna 520 is larger, the frequency of the ultra-wideband radio frequency signal transmitted by the first antenna 510 or the second antenna 520 is lower. Accordingly, the frequency of the ultra-wideband radio frequency signal transmitted by the first antenna 510 or the second antenna 520 may be adjusted by adjusting the slot size on the first antenna 510 or the second antenna 520.

In some embodiments, the radiation frequency of the antenna may also be adjusted by adjusting the size of the radiator of the antenna. For example, the size of the first antenna 510 in the direction perpendicular to the first slot 511 is larger than the size of the second antenna 520 in the direction perpendicular to the second slot 521. That is, the length of the first slot 514 may be greater than the length of the second slot 524, and the width of the first slot 514 may be greater than the width of the second slot 524. The length and/or width of the first and

second slots

514, 524 may be the same.

The size of the first antenna 510 is larger than that of the second antenna 520, the first antenna 510 is used for transmitting the ultra-wideband radio frequency signal with lower frequency, and the second antenna 520 is used for transmitting the ultra-wideband radio frequency signal with higher frequency.

In some embodiments, the first antenna 510 and the second antenna 520 may share the same radiator, as shown in fig. 4, the first antenna 510 and the second antenna 520 share the same metal patch, the first side 511 and the fourth side 521 are connected, a plurality of radiator ground points 530 are disposed on the metal patch, the plurality of radiator ground points 530 are disposed on the first side 511 and the fourth side 521, and the metal patch is divided into a first portion and a second portion by the radiator ground points 530, the first portion is the first antenna 510, and the second portion is the second antenna 520. By sharing the same metal patch with the first antenna 510 and the second antenna 520, the size of the antenna assembly is reduced, and the antenna assembly is more convenient to arrange in electronic equipment with smaller space.

With reference to fig. 5, fig. 5 is a schematic diagram illustrating a fourth structure of an antenna element according to an embodiment of the present application.

In some embodiments, the first slot 514 may be disposed in the middle of the first antenna 510, that is, either side of the first slot 514 away from the first antenna 510, and the first slot 514 does not form an opening on the side of the first antenna 510. The second slot 524 may be disposed in the middle of the second antenna 520, that is, the second slot 524 is away from either side of the second antenna 520, and the second slot 524 does not form an opening on the side of the second antenna 520.

An insulating material may be filled in the first gap 514 and the second gap 524, and the antenna assembly may have greater stability due to the insulating material. The connection to other parts of the electronic device may also be realized by means of an insulating material, for example, glue may be provided in the first gap 514 and the second gap 524, by means of which the connection to the housing of the electronic device is realized.

With continued reference to fig. 6, fig. 6 is a fifth structural schematic diagram of an antenna element provided in the present embodiment.

In some embodiments, the first antenna 510 includes two first slots 514, one first slot 514 having a third opening formed on the second side 512 of the first antenna 510 and the other first slot 514 having a first opening formed on the third side 513, the first and third openings being opposite, the second and

third sides

512, 513 also being opposite. Since a plurality of first grounding points 515 are disposed on the first side 511 of the first antenna 510, the first slot 514 is far from the first side 511.

The second antenna 520 includes two second slots 524, one second slot 524 has a fourth opening formed on a fifth side 522 of the second antenna 520, the other second slot 524 has a second opening formed on a sixth side 523, and the fifth side 522 and the sixth side 523 are opposite sides. Since the plurality of second ground points 524 are disposed on the fourth side 521 of the second antenna 520, the second slot 524 and the second slot 524 are far from the fourth side 521.

In some embodiments, the specific locations of the first grounding point 515 and the second grounding point 524 may be specifically set according to the arrangement of the first antenna 510 and the second antenna 520. For example, the first side 511 and the fourth side 521 face in opposite directions.

In some embodiments, the first slot 514 and the first side 511 are parallel and the second slot 524 and the fourth side 521 are parallel.

Referring to fig. 7, fig. 7 is a sixth structural schematic diagram of an antenna assembly according to an embodiment of the present application.

In some embodiments, the first antenna 510 and the second antenna 520 may share the same metal patch, thereby reducing the volume of the antenna assembly. The first opening and the second opening may be on the same side of the metal patch, and the third opening and the fourth opening may be on the same side of the metal patch.

The first slot 514 and the second slot 524 may have the same size, and the sizes of the first antenna 510 and the second antenna 520 may be changed by adjusting the grounding point 530 of the radiator on the metal patch, so as to change the resonant frequencies of the first antenna 510 and the second antenna 520.

In addition, the first antenna 510 and the second antenna 520 are both rectangular in shape and have the same side length, and the resonant frequency of the first antenna 510 can be changed by adjusting the size of the first slot 514. The resonant frequency of the second antenna 520 is changed by adjusting the size of the second slot 524. Therefore, the change of the resonant frequency of the antenna assembly is realized under the condition that the volume of the antenna assembly is not increased, and the antenna assembly transmits ultra-wideband radio frequency signals with different frequencies.

With reference to fig. 8, fig. 8 is a schematic diagram illustrating a seventh structure of an antenna element according to an embodiment of the present application.

In some embodiments, the slot sizes on the first antenna 510 and the second antenna 520 are the same, the slot depths are both L3, and the value of L3 may be 2 mm.

Since the first antenna 510 and the second antenna 520 share the same metal patch as a radiator, and the radiator ground point 530 is disposed on the rectangular metal patch, the sizes of the first antenna 510 and the second antenna 520 can be adjusted by adjusting the position of the radiator ground point 530, so that the resonant frequency of the antenna assembly can be adjusted without changing the size of the whole metal patch. The width of the metal patch may be L1, the value of L1 is 10.5mm, the width of the radiator of the first antenna 510 is L2, and the value of L2 is 4.73 mm.

Referring to fig. 9, fig. 9 is a circuit diagram of an antenna assembly according to an embodiment of the present application.

In some embodiments, the first antenna 510 and the second antenna 520 share one signal source S1, and the signal source S1 may provide ultra-wideband radio frequency signals of at least two frequency ranges. The first matching circuit M1 matches the first ultra-wideband rf signal and then radiates the first ultra-wideband rf signal through the first antenna 510. The second matching circuit M2 matches the second ultra wideband rf signal and then radiates the second ultra wideband rf signal through the second antenna 520. By providing a signal source S1, the volume of the antenna assembly can be further reduced.

It should be noted that the first antenna 510 may also receive a first ultra-wideband radio frequency signal, and the second antenna 520 may also receive a second ultra-wideband radio frequency signal. The processor in the electronic equipment can process the ultra-wideband radio frequency signal received by the antenna assembly, so that the specific position of a communication object transmitting the ultra-wideband radio frequency signal is determined, and the electronic equipment can position the communication object.

As shown in fig. 10, when the first antenna 510 is operated, there is a current distribution on the zenith component, and the first antenna 510 radiates a first ultra-wideband radio frequency signal through the current, where the first ultra-wideband radio frequency signal is a radio frequency signal with a frequency of 6.5 GHz. Wherein the current intensity is strongest at the first slot 514 and the first slot 514, the first antenna 510 can radiate a first ultra-wideband radio frequency signal to the outside through the first slot 514 and the first slot 514.

Referring to fig. 11, fig. 11 is a second operating current diagram of an antenna assembly according to an embodiment of the present application.

As shown in fig. 11, when the second antenna 520 operates, there is a current distribution on the zenith module, and the second antenna 520 radiates a second ultra-wideband radio frequency signal through the current, where the second ultra-wideband radio frequency signal is a radio frequency signal with a frequency of 8 GHz. Wherein, the current intensity at the second slot 524 and the second slot 524 is the strongest, and the second antenna 520 may radiate a second ultra-wideband radio frequency signal to the outside through the second slot 524 and the second slot 524.

In the coordinate system in fig. 12, the horizontal axis is frequency, and the vertical axis is reflection coefficient, as can be seen from fig. 12, when the first antenna 510 radiates an ultra-wideband radio frequency signal of 6.48GHz, the reflection coefficient of the antenna radiator is less than-12 dB, and the antenna assembly has good radiation performance. When the second antenna 520 radiates an ultra-wideband radio frequency signal of 7.98GHz, the reflection coefficient of the radiator of the antenna is less than-10 dB, and the antenna component has good radiation performance.

As can be seen from fig. 13, when the first antenna 510 radiates an ultra-wideband radio frequency signal of 6.48GHz, the reflection coefficient of the antenna radiator is greater than-5 dB, and the antenna assembly has good radiation performance. When the second antenna 520 radiates an ultra-wideband radio frequency signal of 8GHz, the reflection coefficient of the radiator of the antenna is greater than-5 dB, and the antenna assembly has good radiation efficiency.

In the present embodiment, the antenna assembly includes a first antenna 510, a second antenna 520 and a feeding structure, the first antenna 510 includes a first side 511 and a second side 512 which are adjacent to each other, the first side 511 of the first antenna 510 is grounded, the second side 512 of the first antenna 510 is provided with a first feeding point, and the first antenna 510 is provided with at least one first slot 514 parallel to the first side 511; the second antenna 520 includes a fourth side 521 and a fifth side 522 which are adjacent to each other, the fourth side 521 of the second antenna 520 is parallel to the first side 511 of the first antenna 510 and is grounded, the fifth side 522 of the second antenna 520 is provided with a second feeding point, and the second antenna 520 is provided with at least one second slot 524 parallel to the fourth side 521; the feeding structure is connected to the first feeding point and the second feeding point, and is configured to feed an excitation signal to the first antenna 510 and the second antenna 520, so as to excite the first antenna 510 to generate a resonance in a first frequency band, and excite the second antenna 520 to generate a resonance in a second frequency band. The antenna assembly has a small volume.

The above detailed description is provided for an antenna assembly and an electronic device provided in the embodiments of the present application, and specific examples are applied herein to explain the principles and embodiments of the present application, and the description of the above embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. An antenna assembly, comprising:

2. The antenna assembly of claim 1, wherein the at least one first slot is disposed on a side of the first feed point facing away from a first side of the first antenna, and wherein the at least one second slot is disposed on a side of the second feed point facing away from a fourth side of the second antenna.

3. The antenna assembly of claim 2, wherein the first antenna and the second antenna are unitary antennas, and wherein the first side of the first antenna is connected to the fourth side of the second antenna.

4. The antenna assembly of claim 3, wherein the first antenna and the second antenna share a ground structure at a connection of the first side of the first antenna and the fourth side of the second antenna.

5. The antenna assembly of claim 2, wherein the first antenna is spaced apart from the second antenna, wherein the first side of the first antenna faces away from the second antenna, and wherein the fourth side of the second antenna faces toward or away from the first antenna.

6. The antenna assembly of any one of claims 1-5, wherein the first frequency band is lower than the second frequency band, and wherein a dimension of the first antenna in a direction perpendicular to the first slot is greater than a dimension of the second antenna in a direction perpendicular to the second slot.

7. The antenna assembly of claim 6, wherein the length of the first slot is greater than the width of the second slot and/or the width of the first slot is greater than the width of the second slot.

8. The antenna assembly of claim 7, wherein the at least one first slot and the at least one second slot are both closed slots.

9. The antenna assembly of claim 7, wherein the first antenna further comprises a third side opposite the second side of the first antenna, wherein the second antenna further comprises a sixth side opposite the fifth side of the second antenna, wherein the at least one first slot and the at least one second slot are each semi-open slots, wherein the first slot forms an opening on the second side or the third side of the first antenna, and wherein the second slot forms an opening on the fifth side or the sixth side of the second antenna.

10. The antenna assembly of claim 9, wherein the first antenna is provided with two first slots spaced apart in a direction parallel to the first side of the first antenna, one of the first slots having an opening formed on the second side of the first antenna and the other of the first slots having an opening formed on the third side of the first antenna.

11. The antenna assembly of claim 9, wherein the second antenna is provided with two second slots spaced apart in a direction parallel to the fourth side of the second antenna, wherein one second slot forms an opening on the fifth side of the second antenna and the other second slot forms an opening on the sixth side of the second antenna.

12. An electronic device, characterized in that the electronic device comprises an antenna assembly according to any one of claims 1-11 for receiving ultra-wideband radio frequency signals transmitted by communicating objects, the electronic device further comprising: