CN211350948U

CN211350948U - Antenna assembly and electronic equipment

Info

Publication number: CN211350948U
Application number: CN202020298178.XU
Authority: CN
Inventors: 雍征东
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-08-25
Anticipated expiration: 2030-03-12

Abstract

The present application relates to an antenna assembly and an electronic device, the antenna assembly comprising: a support; the radiator is arranged on the support and comprises a feed point and a plurality of grounding points, and the grounding points are arranged at least one end part of the radiator so as to enable at least one end part of the radiator to be grounded; the signal source is connected with the feed points in a one-to-one correspondence mode and used for correspondingly feeding current signals to the radiating bodies so that the radiating bodies form equivalent magnetic current antennas to radiate radio frequency signals of a preset frequency band, antenna efficiency can be improved, the bandwidth of the antenna can be improved, meanwhile, the radiating bodies are effectively distributed by utilizing the internal space of the electronic equipment, the thickness of the electronic equipment cannot be additionally increased, and the portable and light and thin design of the electronic equipment is facilitated.

Description

Antenna assembly and electronic equipment

Technical Field

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

Background

With the development of wireless communication technology, users have increasingly high requirements on the portability and appearance of electronic devices. With the trend of pursuing the appearance of the mobile phone, the clearance of the stand antenna (the height from the antenna to the floor) is smaller and smaller, which results in lower radiation efficiency and narrower impedance bandwidth.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an antenna module and an electronic device, which can improve the antenna efficiency and the bandwidth of an antenna.

An antenna assembly, comprising:

a support;

the radiator is arranged on the support and comprises a feed point and a plurality of grounding points, and the grounding points are arranged at least one end part of the radiator so as to enable at least one end part of the radiator to be grounded;

and the signal sources are connected with the feed points in a one-to-one correspondence manner and are used for correspondingly feeding current signals to the radiating bodies so that the radiating bodies form equivalent magnetic current antennas to radiate radio frequency signals in a preset frequency band.

An electronic device, comprising: a substrate; and an antenna assembly as described above; the signal source is arranged on the substrate, and the support is located on the substrate and used for supporting the substrate.

According to the antenna assembly and the electronic device, the support, the at least one radiator and the at least one signal source are arranged, the radiator is arranged on the support, and the plurality of grounding points are arranged on the radiator, so that at least one end part of the radiator is grounded, the radiator is equivalent to a magnetic current antenna, the antenna efficiency can be improved, the bandwidth of the antenna is improved, meanwhile, the radiator is effectively distributed by utilizing the internal space of the electronic device, the thickness of the electronic device cannot be additionally increased, and the portability and the light and thin design of the electronic device are facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of an electronic device according to an embodiment;

FIG. 2 is a schematic diagram of an antenna assembly according to an embodiment;

fig. 3a is a schematic diagram of a radiator of an antenna assembly according to an embodiment;

fig. 3b is a schematic diagram of a radiator of an antenna assembly according to another embodiment;

fig. 3c is a schematic diagram of a radiator of an antenna assembly according to yet another embodiment;

FIG. 4a is a simulation diagram of current distribution of an antenna element according to an embodiment;

FIG. 4b is a magnetic field distribution simulation diagram of an antenna assembly according to an embodiment;

FIG. 5 is a system efficiency simulation diagram of an antenna assembly of an embodiment;

FIG. 6a is a simulation diagram of current distribution of an antenna element according to an embodiment;

FIG. 6b is a magnetic field distribution simulation diagram of an antenna assembly according to an embodiment;

FIG. 7 is a simulation plot of the S11 coefficients for an antenna element of an embodiment;

FIG. 8 is a schematic diagram of system efficiency of an antenna assembly according to an embodiment;

fig. 9 is a schematic diagram of an antenna element according to an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element, and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood that when an element is referred to as being "attached" to 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 antenna assembly of an embodiment of the present application is applied to an electronic Device, and in an embodiment, the electronic Device may be a communication module including a Mobile phone, a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID), a wearable Device (e.g., a smart watch, a smart bracelet, a pedometer, etc.), or other configurable array antenna assemblies.

As shown in fig. 1, in the embodiment of the present application, the electronic device 10 may include a conductive bezel 110, a rear cover, a substrate 120, a stand, a display screen assembly 130, and a radio frequency circuit. The display screen assembly 130 is fixed to the housing assembly formed by the conductive bezel 110 and the rear cover, and the display screen assembly 130 and the housing assembly together form an external structure of the electronic device 10. The display screen in the display screen assembly 130 may include a display area as well as a non-display area. The display area performs a display function of the display screen for displaying information such as images and texts. The non-display area does not display information. The non-display area can be used for arranging electronic devices such as a camera module and a display screen touch electrode.

The back cover is used to form the outer contour of the electronic device 10. The rear cover may be integrally formed. In the forming process of the rear cover, structures such as a rear camera hole, a fingerprint identification module, an antenna assembly mounting hole and the like can be formed on the rear cover. Wherein, the back lid can be behind the nonmetal lid, for example, the back lid can be behind the plastic lid, the lid behind the pottery, the lid behind the 3D glass etc..

In one embodiment, the conductive frame 110 may be a frame structure with through holes. The material of the conductive frame 110 may include a metal frame made of aluminum alloy, magnesium alloy, or the like.

The substrate 130 may be received in a receiving space formed by the conductive bezel 110 and the rear cover. The substrate 130 may be a PCB (Printed Circuit Board) or an FPC (Flexible Printed Circuit). A part of a radio frequency circuit for processing an antenna signal, a controller capable of controlling the operation of the electronic device 10, and the like may be integrated on the substrate 130. The radio frequency circuits include, but are not limited to, an antenna assembly, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the radio frequency circuitry may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE)), e-mail, Short Messaging Service (SMS), and the like.

As shown in fig. 2, the present embodiment provides an antenna assembly 20, wherein the antenna assembly 20 includes a support 210, at least one signal source 220, and at least one radiator 230.

In one embodiment, the bracket 210 is located between the substrate 130 and the conductive bezel 110, that is, the bracket 210 is located on a side of the substrate 130 away from the display screen. The support 210 covers the substrate 130, so that the substrate 130 is protected when the substrate 130 is mounted on the conductive frame 110.

In one embodiment, the support 210 may serve as a dielectric substrate for the antenna assembly 20. Specifically, the support 210 may be a dielectric material support or a magnetoelectric material support. Illustratively, when the support 210 is a dielectric support, the dielectric constant of the support 210 is in a range of 2.5 to 4; when the magneto-electric material of the support 210 is used as a support, the magnetic conductivity of the support 210 ranges from 1 to 8, and the dielectric constant ranges from 1 to 3.5.

In one embodiment, each radiator 230 is disposed on the support 210. That is, the area of each radiator 230 orthographically projected on the support 210 is smaller than the area of the support 210 and the sum of the areas of all radiators 230 orthographically projected on the support 210 is smaller than or equal to the area of the support 210. Specifically, the radiator 230 has a polygonal structure including a plurality of end portions. The end of the radiator 230 may be understood as any side of the polygonal structure.

The radiator 230 includes a feed point S and a plurality of ground points G disposed at least one end of the radiator 230 to ground at least one end of the radiator 230; that is, at least one end of the radiator 230 is provided with a plurality of ground points G for grounding.

In one embodiment, the shape of the radiator 230 may be rectangular, triangular, circular, elliptical, etc. For example, when the radiator 230 has a rectangular structure, the rectangular structure may include four ends, and at least one end of the radiator 230 is provided with a plurality of grounding points G, so as to ground at least one end of the radiator 230; when the radiator 230 is a triangular structure, the triangular structure includes three ends, and at least one end of the radiator 230 is provided with a plurality of grounding points G, so that at least one end of the radiator 230 is grounded; when the radiator 230 has a circular structure, the circular structure may include a circumferential end, and a plurality of ground points G may be densely disposed on a partial arc of the radiator 230 to ground at least one partial arc of the radiator 230.

The signal source 220 is configured to output a current signal, and one signal source 220 is correspondingly connected to the feeding point S on the radiator 230 and is configured to correspondingly feed the current signal to the radiator 230, so that the radiator 230 forms an equivalent magnetic current antenna to radiate a radio frequency signal in a preset frequency band.

When the plurality of grounding points G of the radiator 230 are grounded, at least one end of the radiator 230 may be grounded, and when the signal source 220 feeds a current signal to the feeding point S on the radiator 230, at least one grounded end of the radiator 230 excites an electromagnetic field and radiates outward through a gap between at least one grounded end of the radiator 230 and the support 210. When the signal source 220 feeds a current signal to the radiator 230, at least one grounded end of the radiator 230 may present a voltage antinode and a node of the current, and due to dual boundary conditions, a gap between the at least one grounded end of the radiator 230 and the bracket 210 may generate an equivalent surface magnetic current, so that the antenna assembly 20 may be equivalent to a magnetic current antenna, so that the radiator 230 radiates a radio frequency signal in a predetermined frequency band.

It should be noted that the number of the signal sources 220 is equal to the number of the feeding points S, that is, the signal sources 220 are connected to the feeding points S in a one-to-one correspondence, so as to feed corresponding current signals to each of the radiators 230.

In the antenna assembly 20 of this embodiment, by providing the support 210, the at least one radiator 230, and the at least one signal source 220, the radiator 230 is disposed on the support 210, and the plurality of grounding points G are disposed on the radiator 230, so that at least one end of the radiator 230 is grounded, and the radiator is equivalent to a magnetic current antenna, which can improve antenna efficiency and improve antenna bandwidth, and meanwhile, the radiator 230 is effectively disposed by using an internal space of an electronic device, which does not increase the thickness of the electronic device additionally, and is beneficial to implementing portability and light and thin design of the electronic device.

In one embodiment, the signal source 220 may be disposed on the substrate 130, and the signal source 220 may be coupled to the radiator 230 through a first connection portion 251, wherein a coupling point of the first connection portion and the radiator 230 may serve as the feeding point SS 1. The first connection portion 251 may be a conductive elastic piece or a screw coupling, and specifically, the feed point SS1 may be connected to the signal source 220 through the conductive elastic piece or the screw. The current signal output by the signal source 220 can be fed to the radiator 230 through the feeding point SS1 by a feeding method of a spring or a screw, so as to generate radiation. A plurality of ground points G may be connected to the ground layer 131 (ground return point) of the substrate 130 through the second connection portion 252 to achieve conduction to ground. The second connection portion 252 may be a conductive body such as a spring, a screw, or a flexible circuit board. Each grounding point G can be connected to the ground layer of the substrate 130 through the second connection portion 252 to achieve conduction with the ground. Specifically, the grounding point G and the feeding point S may be located on a surface of the radiator 230 facing the substrate 120, and the signal source 220 on the substrate 120 may pass through a through hole formed in the support 210 to be electrically connected to the feeding point S.

In one embodiment, the grounding point G and/or the feeding point S connect the radiator 230 and the substrate 120 by using a conductive elastic sheet, and the radiator 230 and the substrate 120 are not easily separated by using the elastic deformation performance of the conductive elastic sheet, so that the reliability of the electrical connection between the two is ensured.

In one embodiment, the shape of the radiator 230 may include a rectangle, a triangle, a circle, an ellipse, and the like. In the embodiment of the present application, the shape of the radiator 230 is illustrated as a rectangle.

As shown in fig. 3a to 3c, the radiator 230 includes a rectangular radiation patch, and the rectangular radiation patch includes a first end 231 and a second end 232 that are opposite to each other, and a third end 233 and a fourth end 234 that are opposite to each other, wherein the third end 233 is connected to the first end 231 and the second end 232, respectively.

In one embodiment, the feed point S is disposed between the first end 231 and the second end 232. Specifically, the distance between the feed point S and the first end 231 is less than or equal to the distance between the feed point S and the second end 232.

In one embodiment, a plurality of grounding points G may be disposed along the first end 231 and/or the second end 232, that is, may be disposed at the first end 231 and/or the second end 232, such that the first end 231 and/or the second end 232 is grounded, for example, the first end 231 may be disposed with N grounding points G, where N is greater than or equal to 3, to achieve good grounding of the first end 231; the first end portion 231 may be provided with M grounding points G, M being greater than or equal to 3, to achieve good grounding of the second end portion 232.

In one embodiment, a plurality of grounding points G are disposed along the third end 233 or the fourth end 234, i.e., at the third end 233 or the fourth end 234, so that the third end 233 or the fourth end 234 is grounded. Illustratively, the third end 233 may be provided with J grounding points G, J being greater than or equal to 3, to achieve good grounding of the third end 233; the fourth end portion 234 may be provided with K grounding points G, K being greater than or equal to 3, to achieve good grounding of the fourth end portion 234.

The number of the grounding points G provided on the first end 231, the second end 232, the third end 233 and the fourth end 234 is not further limited, and the specific number thereof may be set according to the size of each end. The arrangement mode of the plurality of grounding points G arranged at the same end part can be linear arrangement or nonlinear arrangement, and in the application, the arrangement mode of the plurality of grounding points G at the same end part is not further limited.

In the embodiment of the present application, the plurality of grounding points G may be correspondingly disposed at the first end 231 and/or the second end 232 of the rectangular radiation patch, and may also be correspondingly disposed at the third end 233 or the fourth end 234 of the rectangular radiation patch, so as to enable at least one end of the rectangular radiation patch to be well grounded.

It should be noted that the first end 231 and the second end 232 may be understood as ends of the rectangular radiation patch in width, that is, short sides, and the third end 233 and the fourth end 234 may be understood as ends of the rectangular radiation patch in length, that is, long sides.

In one embodiment, the directions of the first end 231 and the second end 232 of the rectangular radiation patch may be understood as the width direction of the radiator 230, wherein the sizes of the first end 231 and the second end 232 may be the width dimension, and the directions of the third end 233 and the fourth end 234 of the rectangular radiation patch may be understood as the length direction of the radiator 230, wherein the sizes of the third end 233 and the fourth end 234 may be the length dimension.

In one embodiment, the support 210 is a dielectric support, wherein the dielectric support has a dielectric constant in the range of 2.5 to 4. In this example, by irradiationBody 230 is illustrated as a rectangular radiating patch. The length dimension of the rectangular radiating patch is required to satisfy 1/4 wavelength resonance, i.e.

Where c is the speed of light, f is the resonant frequency, and is the dielectric constant of the support 210. Specifically, the ratio of the sizes of the first end 231 and the third end 233 is greater than or equal to 0.5 and less than or equal to 3. Or the ratio of the width dimension to the length dimension is more than or equal to 0.5 and less than or equal to 3, namely, the width L/2 is more than or equal to W and less than or equal to 3L.

When the radiator 230 includes a rectangular radiation patch, the first end 231 of the rectangular radiation patch is provided with 5 grounding points G, and the 5 grounding points G are linearly and uniformly arranged, so that the first end 231 of the radiator 230 is well grounded. When the signal source 220 feeds a current signal to the rectangular radiating patch through the feeding point S, the current distribution formed on the radiator 230 is as shown in fig. 4a, and the magnetic field distribution of the surface magnetic current formed is as shown in fig. 4b, so that the radiator 230 can be equivalent to a magnetic current antenna to radiate a radio frequency signal in a preset frequency band.

Specifically, as shown in fig. 5, when the length dimension of the rectangular radiation patch satisfies 1/4 wavelength resonance and its length dimension L is 17.6mm, the system efficiency corresponds to different width dimensions W. Wherein, curve 1 may represent the system efficiency corresponding to the width dimension W of the rectangular radiation patch being 5.5 mm; curve 2 may represent the system efficiency for a rectangular radiation patch width dimension W of 15 mm; curve 3 may represent the system efficiency for a rectangular radiation patch width dimension W of 20 mm; curve 4 may represent the system efficiency for a rectangular radiation patch width dimension W of 30 mm; curve 5 may represent the system efficiency for a rectangular radiation patch width dimension W of 40 mm. Referring to fig. 5, it can be observed that the larger the width dimension W, the higher the radiation efficiency of the antenna, and the larger the bandwidth.

The antenna assembly 20 in this embodiment can be used to radiate 5G signals in the Sub-6G band, and has a larger bandwidth and higher radiation efficiency than a conventional pifa antenna.

In one embodiment, the support 210 is a magneto-electric material support. Book (I)In the example, the radiator 230 is illustrated as a rectangular radiation patch. The length dimension of the rectangular radiating patch is required to satisfy 1/4 wavelength resonance, i.e.

Where c is the speed of light, f is the resonant frequency, r is the dielectric constant of the support 210, and ur is the permeability of the support 210. Wherein r is more than 1 and less than or equal to 3.5, df is less than or equal to 0.01, ur is more than 1 and less than or equal to 8, and uf is less than or equal to 0.01. Where df is the dielectric loss coefficient and uf is the permeability loss coefficient. Specifically, the ratio of the sizes of the first end 231 and the third end 233 is greater than or equal to 0.5 and less than or equal to 3. Or the ratio of the width dimension to the length dimension is more than or equal to 0.5 and less than or equal to 3, namely, the width L/2 is more than or equal to W and less than or equal to 3L.

When the radiator 230 includes a rectangular radiation patch, the first end 231 of the rectangular radiation patch is provided with 5 grounding points G, and the 5 grounding points G are linearly and uniformly arranged, so that the first end 231 of the radiator 230 is well grounded. When the signal source 220 feeds a current signal to the rectangular radiating patch through the feeding point S, the current distribution formed on the radiator 230 is as shown in fig. 6a, and the magnetic field distribution of the surface magnetic current formed is as shown in fig. 6b, so that the radiator 230 can be equivalent to a magnetic current antenna to radiate a radio frequency signal in a preset frequency band.

The simulation is performed by taking the support 210 as a magnetoelectric material support and the radiator 230 as a rectangular radiation patch, and the S11 coefficient and the system efficiency of the antenna can be correspondingly obtained. Illustratively, the simulation is performed by using a magnetic current antenna with a dielectric constant of 3, a magnetic permeability of 2.7, a height of 1mm, a length dimension L of 11.1mm, and a width dimension of 15mm, of the magneto-electric material support, as shown by a curve 701 in fig. 7, an S11 coefficient of the magnetic current antenna, and as shown by a curve 801 in fig. 8, a system efficiency of the magnetic current antenna. The magnetic current antenna with the dielectric constant of 3, the height of 1mm, the length dimension L of 18.2mm and the width dimension of 15mm of the dielectric material support is used for simulation, for example, a curve 702 in fig. 7 is an S11 coefficient of the magnetic current antenna, and a curve 802 in fig. 8 is a system efficiency of the magnetic current antenna. Simulations were performed with a PIFA antenna based on a dielectric substrate 120 having a rectangular radiating patch with a length dimension L of 19mm and a width dimension of 5mm, curve 703 in fig. 7 being the S11 coefficient of the magneto-current antenna, and curve 803 in fig. 8 being the system efficiency of the PIFA antenna. Referring to fig. 7 and 8, it can be observed that the magneto-electric material based magneto-electric antenna has a larger bandwidth and a high radiation efficiency compared to the pifa antenna of the conventional dielectric substrate 120, and has a smaller antenna size and antenna bandwidth compared to the magneto-electric material based magneto-electric antenna of the dielectric substrate.

In one embodiment, the number of the radiators 230 is multiple, and the radiators 230 are arranged at intervals. It is understood that the distance between two adjacent radiators 230 satisfies the requirement of the isolation, that is, the two adjacent radiators 230 are spaced apart, which can provide the isolation between the radiators 230.

As shown in fig. 9, the number of radiators on the conductive support 210 may be two, three, four, or more. For example, when the number of radiators is three, each radiator may be referred to as a first radiator 230a, a second radiator 230b, and a third radiator 230 c. Accordingly, the first radiator 230a may be provided with a first feed point S1 and a plurality of first ground points G1; the second radiators 230b may each be provided with a second feed point S2 and a plurality of second ground points G2; the third radiator 230c may be provided with a third feed point S3 and a plurality of third ground points G3. Three signal sources, namely a first signal source 241, a second signal source 242, and a third signal source 243, can be included on the substrate 120. The first signal source 241 is connected to the first feed point S1, and is configured to feed a first current signal to the first radiator 230a, so that the first radiator 230a radiates a radio frequency signal in a first frequency band; the second signal source 242 is connected to the second feed point S2, and is configured to feed a second current signal to the second radiator 230b, so that the second radiator 230b radiates the radio frequency signal in the second frequency band; the third signal source 243 is connected to the third feed point S3, and is configured to feed a third current signal to the third radiator 230c, so that the third radiator 230c radiates the radio frequency signal in the third frequency band.

In one embodiment, the radio frequency signals may include radio frequency signals of different frequency bands. For example, the radio frequency signal may include at least one frequency band of a 5G signal, an LTE signal, a satellite positioning signal, a WiFi signal.

The 5G signal may include a Sub-6G band, an N78 band, and an N79 band. The working frequency of the Sub-6G frequency band is below 6G of 450MHz-6000MHz, the frequency range of the N78 frequency band can be 3.3 GHz-3.6 GHz, and the frequency range of the N79 frequency band can be 4.8 GHz-5 GHz. The N78 band and the N79 band may be high frequency bands of Sub-6G band. For example, the first radiator 230a may be used to radiate radio frequency signals of Sub-6G band or N78 band and N79 band.

LTE signals can be divided into Low Band (LB), Medium Band (MB), and High Band (HB). In the embodiment of the present application, the second radiator 230b may correspondingly radiate the intermediate frequency radio frequency signal and the high frequency radio frequency signal in the LTE signal under the excitation of the signal source 220. The frequency range of the intermediate frequency radio frequency signal is 1710MHz to 2170MHz, and the frequency range of the high frequency radio frequency signal is 2300MHz to 2690 MHz.

The Satellite positioning signal includes a Global Positioning System (GPS) signal having a frequency range of 1.2GHz to 1.6GHz, a BeiDou Navigation Satellite System (BDS) signal, and at least one of a GLONASS Satellite Navigation System (GLONASS) signal. Illustratively, the third radiator 230c may be configured to radiate radio frequency signals of a GPS L1 band or a GPS L5 band.

The WiFi signals may include WiFi 5G signals or WiFi 2.4G signals. For example, the third radiator 230c may be used to radiate a WiFi 5G signal or a WiFi 2.4G signal.

It should be noted that each radiator 230 may be configured to radiate a radio frequency signal of a predetermined frequency band. When the number of the radiators 230 is multiple, each radiator 230 can radiate radio frequency signals of different frequency bands, so that the design requirements of multiple frequency bands and multiple antennas can be met under the condition that the radiators 230 are limited by the support 210.

In one embodiment, the radiator 230 may be formed using a 3D-MID process technology of a three-dimensional laser. For example, the radiator 230 may be formed directly on the support 210 by laser direct structuring, first, laser-induced modification material is formed, and then, selective metal plating is performed, so that the radiator 230 may not occupy an additional space inside the electronic device, and may not increase the thickness of the electronic device, thereby realizing a light and thin design of the electronic device.

Alternatively, the radiator 230 may be disposed on the support 210 by other processes, such as: the radiator 230 may adopt a patch antenna process to connect the radiator 230 and the support 210.

An embodiment of the present application further provides an electronic device 10, where the electronic device 10 includes a substrate 130 and the antenna assembly 20 in any of the above embodiments; the signal source 220 is disposed on the substrate 120, and the support 210 is disposed on the substrate 120 and used for supporting the substrate 120.

When the antenna assembly 20 is applied to the electronic device 10, the plurality of grounding points G are disposed on the radiator 230, so that at least one end of the radiator 230 is grounded and equivalent to a magnetic current antenna, thereby improving the antenna efficiency and the antenna bandwidth, and effectively utilizing the internal space of the electronic device to arrange the radiator 230, without additionally increasing the thickness of the electronic device, which is beneficial to the implementation of the portable and light design of the electronic device.

Electronic equipment can be for intelligent wrist-watch, also can be intelligent bracelet, and the skilled person in the art can be applied to other electronic equipment with antenna module 20 according to actual need, and it is not repeated here.

Any reference to memory, storage, database, or other medium used herein may include non-volatile and/or volatile memory. Suitable non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An antenna assembly, comprising:

a support;

2. The antenna assembly of claim 1, wherein the radiator comprises a rectangular radiating patch including first and second oppositely disposed ends, wherein the ground points are disposed along the first and/or second ends, and wherein the feed point is disposed between the first and second ends.

3. The antenna assembly of claim 2, wherein the rectangular radiating patch further comprises third and fourth oppositely disposed ends, wherein the third end is connected to the first and second ends, respectively, and wherein the plurality of ground points are disposed along the third or fourth ends.

4. The antenna assembly of claim 3, wherein a ratio of the dimensions of the first end portion to the third end portion is equal to or greater than 0.5 and equal to or less than 3.

5. The antenna assembly of claim 2, wherein a distance between the feed and the first end is less than or equal to a distance between the feed and the second end.

6. The antenna assembly of claim 1, wherein the number of radiators is plural, and the plural radiators are spaced apart.

7. The antenna assembly of claim 1, wherein the support is a dielectric material support or a magneto-electric material support.

8. The antenna assembly of claim 1, further comprising a matching circuit for adjusting impedance between the feed point and the signal source.

9. The antenna assembly of claim 1, wherein the predetermined frequency band comprises at least one of a plurality of frequency bands for 5G signals, an operating frequency band for satellite positioning signals, and an operating frequency band for WiFi signals.

10. An electronic device, comprising: a substrate; and an antenna assembly of any one of claims 1-9; the signal source is arranged on the substrate, and the support is located on the substrate and used for supporting the substrate.