CN112054288B

CN112054288B - Electronic device

Info

Publication number: CN112054288B
Application number: CN202010922950.5A
Authority: CN
Inventors: 王虎
Original assignee: Hisense Mobile Communications Technology Co Ltd
Current assignee: Hisense Mobile Communications Technology Co Ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2022-11-08
Anticipated expiration: 2040-09-04
Also published as: CN112054288A

Abstract

The application provides an electronic device, belongs to the technical field of communication, and the electronic device comprises an antenna. Because a plurality of first slots are formed on the radiating metal patch included by the antenna, and each first slot comprises two slot branches which are intersected and communicated in the length direction, the flowing path of current generated when the antenna works is optimized, and the working bandwidth of the antenna is larger. Therefore, the antenna has better working performance.

Description

Electronic device

Technical Field

The application relates to the technical field of communication, in particular to an electronic device.

Background

An antenna for implementing a signal transceiving function is generally disposed in an electronic device (e.g., a mobile terminal). Such as an antenna capable of outputting signals in the millimeter wave band.

In the related art, a microstrip patch antenna is provided to output signals in a millimeter wave band. However, limited by the working mechanism of the microstrip patch antenna, the working bandwidth of the antenna can only reach about 2% to 3%, that is, the working bandwidth of the antenna is small, and the working performance is poor.

Disclosure of Invention

The application provides an electronic device, which can solve the problems of small bandwidth and poor working performance of an antenna in the related art. The technical scheme is as follows:

in one aspect, an electronic device is provided, and the electronic device includes: an antenna, the antenna comprising: the antenna comprises a Printed Circuit Board (PCB), a radiating metal patch and at least one feed point;

the radiating metal patch is arranged on the PCB, and the at least one feeding point is arranged on the radiating metal patch;

be formed with a plurality of first gaps on the radiation metal paster, every the lateral wall of first gap is discontinuous lateral wall, and every first gap is including the first gap branch and the second gap branch of intercommunication, the length direction of first gap branch with the length direction that the second gap was branched intersects.

Optionally, the length of the first slit branch is smaller than the length of the second slit branch, and the length direction of the first slit branch is perpendicular to the length direction of the second slit branch.

Optionally, the radiating metal patch is rectangular; two first gaps are formed on the radiating metal patch;

and one of the two first gaps and the other first gap are symmetrically arranged at two sides of a diagonal line of the radiation metal patch.

Optionally, the length and the width of the rectangular radiating metal patch are both greater than or equal to 3.1mm and less than or equal to 3.6mm;

the width of each first slit branch and the width of each second slit branch are both greater than or equal to 0.15mm and less than or equal to 0.2mm;

the length of each first gap branch is more than or equal to 0.7mm and less than or equal to 1.1mm, and the length of each second gap branch is more than or equal to 1.1mm and less than or equal to 1.5mm.

Optionally, a second gap is further formed on the radiation metal patch;

the side wall of the second gap is a non-continuous side wall, and the second gap is a strip-shaped gap.

Optionally, the width of the second gap is greater than or equal to 0.15mm and less than or equal to 0.2mm;

the length of the second gap is 1/4 of the equivalent wavelength of the electromagnetic wave in the PCB.

Optionally, the length direction of the second slit is parallel to the extending direction of a diagonal line of the rectangular radiating metal patch.

Optionally, the antenna includes: the two feeding points are symmetrically arranged on the diagonal line;

one of the two feeding points is located on the first symmetry axis of the radiating metal patch and close to the first side edge of the radiating metal patch, and the other feeding point is located on the second symmetry axis of the radiating metal patch and close to the second side edge of the radiating metal patch;

wherein, the first side with the second side is perpendicular, just the first side with the second side is the side that is formed with first gap.

Optionally, a distance between each feeding point and the side of the radiation metal patch close to the feeding point is greater than or equal to 0.1mm and less than or equal to 0.5mm.

Optionally, the electronic device includes: a plurality of antenna modules;

wherein, every antenna module includes: a plurality of the antennas are linearly arranged.

The beneficial effect that technical scheme that this application provided brought includes at least:

the application provides an electronic device. The electronic equipment comprises the antenna, wherein a plurality of first slots are formed in a radiating metal patch of the antenna, and each first slot comprises two slot branches which are intersected and communicated in the length direction, so that the flowing path of current generated when the antenna works is optimized, and the working bandwidth of the antenna is larger. Therefore, the antenna has better working performance.

Drawings

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

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a radiating metal patch provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of another radiation metal patch provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of another electronic device provided in an embodiment of the present application;

fig. 5 is a schematic view of a +45 ° polarization direction of an antenna provided in an embodiment of the present application;

fig. 6 is a schematic view of an antenna with-45 ° polarization direction according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another radiation metal patch provided in an embodiment of the present application;

fig. 8 is a schematic structural diagram of another electronic device provided in the embodiment of the present application;

fig. 9 is a schematic current flow diagram of an antenna according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another electronic device provided in an embodiment of the present application;

fig. 11 is a return loss curve of an antenna provided in an embodiment of the present application;

fig. 12 is a voltage standing wave ratio graph of an antenna according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, the following detailed description of the embodiments of the present application will be made with reference to the accompanying drawings.

With the development of communication technology, the fifth generation mobile communication technology (5G) has come, and accordingly, 5G antennas have appeared. The 5G antenna is capable of operating in two Frequency Ranges (FR), including FR1 and FR2.

The frequency range indicated by FR1 is between 50 megahertz (MHz) and 6 gigahertz (GHz), so the frequency band in the FR1 frequency range can also be referred to as Sub6G (i.e., below 6 GHz) frequency band. Moreover, the frequency bands mainly covered by FR1 are n41 (2496 MHz-2690 MHz), n77 (3.3 GHz-4.2 GHz), n78 (3.3 GHz-3.8 GHz) and n79 (4.4 GHz-5 GHz), respectively. The frequency range indicated by FR2 lies between 24GHz and 52GHz, and the frequency bands mainly covered by FR2 are n257 (26.5 GHz-29.5 GHz), n258 (24.25 GHz-27.5 GHz), n260 (37 GHz-40 GHz) and n261 (27.5 GHz-28.35 GHz). Wherein n41, n77, n78, n79, n257, n258, n260, and n261 are all frequency segment numbers. Because of the large frequency range indicated by FR2, the wavelength of the electromagnetic waves in FR2 is typically on the order of millimeters, e.g., the wavelength is typically between 1 millimeter (mm) and 10 mm. Accordingly, an antenna capable of emitting an electromagnetic wave having a frequency within FR2 may also be referred to as a millimeter wave antenna. Compared with the Sub6G band, the millimeter wave band has many advantages, such as high data transmission rate. Therefore, the 5G millimeter wave antenna has a wide application prospect in various fields. Such as the remote medical field, the intelligent industrial field, the virtual reality field, etc. The following embodiments of the present application all use a 5G millimeter wave antenna as an example to illustrate an antenna structure.

A microstrip patch antenna is provided in the related art, but the operating bandwidth of the antenna is small. In order to increase the working bandwidth of the antenna, the antenna may be implemented by increasing the thickness of a Printed Circuit Board (PCB), feeding by using a capacitive coupling side feeding manner or by providing an auxiliary radiation source, or by providing a rectangular slot or a T-shaped slot on a radiation surface. However, the above measures not only increase the thickness of the antenna itself, which is not favorable for low-cost and small-sized design, but also can only expand the bandwidth by about 5-10%, i.e., the expanded bandwidth is still small, and the microstrip patch antenna cannot be applied to dual-polarized scenes.

The embodiment of the application provides a new antenna structure, and under the antenna structure, the flow direction path of the current generated by the antenna is richer and more complex, correspondingly, the working bandwidth of the antenna formed by the antenna structure can reach about 22 percent and is relatively large. The antenna structure does not increase the whole thickness of the antenna, namely, the design of integration, lightness, thinness, miniaturization and the like is facilitated on the premise of not increasing the cost. In addition, the antenna can also be applied to dual-polarization scenes, and the working scenes are richer.

Fig. 1 is an electronic device provided in an embodiment of the present application. As shown in fig. 1, the electronic device may include: an antenna. The antenna may include: a printed circuit board PCB (also referred to as dielectric substrate) 01, a radiating metal patch 02 and at least one feeding point (also referred to as feeding port) 03.

Wherein, the radiating metal patch 02 may be disposed on the PCB 01, and the at least one feeding point 03 may be disposed on the radiating metal patch 02. And a plurality of first slits 021 may be formed on the radiation metal patch 02, and a sidewall of each first slit 021 may be a discontinuous sidewall, that is, an opening may be opened at a side of the radiation metal patch 02. Each of the first slots 021 includes a first slot branch 0211 and a second slot branch 0212 which are communicated with each other, and a length direction of the first slot branch 0211 intersects a length direction of the second slot branch 0212. I.e. the length directions of the first and

second slit branches

0211 and 0212 are not parallel. Alternatively, the length direction may refer to an extending direction of the length of the slit branches, as shown by x in fig. 1.

For example, the antenna shown in fig. 1 includes one feed point 03 disposed on the radiating metal patch 02. Also, it shows the radiation metal patch 02 on which two first slits 021 are formed. Wherein, one first slit 021 is an opening located at the right side edge of the radiating metal patch 02, and the other first slit 021 is an opening located at the lower side edge of the radiating metal patch 02.

In summary, the present application provides an electronic device comprising an antenna. Because a plurality of first slots are formed on the radiating metal patch included by the antenna, and each first slot comprises two slot branches which are intersected and communicated in the length direction, the flowing path of current generated when the antenna works is optimized, and the working bandwidth of the antenna is larger. Therefore, the antenna has better working performance.

Optionally, with the electronic device shown in fig. 1, in each first slot 021, the length of each first slot branch 0211 may be smaller than the length of each second slot branch 0212, and the length direction of each first slot branch 0211 may be perpendicular to the length direction of each second slot branch 0212. That is, the first slit 021 described in the embodiment of the present application may be an L-shaped slit shown in fig. 1. By arranging the L-shaped gap, the current flow path can be further optimized, and the working bandwidth is expanded.

Note that, the slits described in the embodiments of the present application may also be referred to as grooves, and accordingly, if each of the first slits 021 is an L-shaped slit, each of the first slits 02 may also be referred to as an L-shaped groove. Furthermore, one slot branch (e.g., a first slot branch 0211) in each first slot 021 can be referred to as an L-shaped slot vertical segment, and the other slot branch (e.g., a second slot branch 0212) can be referred to as an L-shaped slot horizontal segment.

Optionally, in combination with the electronic device shown in fig. 1 and the radiating metal patch 02 shown in fig. 2, the radiating metal patch 02 may be rectangular, and two first slots 021 may be formed in the radiating metal patch 02.

Among the two first slits 021, one first slit 021 and the other first slit 021 may be symmetrically arranged at both sides of a diagonal line X1 of the rectangular radiation metal patch 02. That is, in conjunction with fig. 1 and 2, one first slit 021 may be formed in an upper right region (right side edge as viewed in the drawing) of the radiating metal patch 02, and the other first slit 021 may be formed in a lower left region (lower side edge as viewed in the drawing) of the radiating metal patch 02. In the first slit 021 located in the upper right region, the length direction x of the first slit branch 0211 is perpendicular to the extending direction y1 of the right side edge, and the length direction x of the second slit branch 0212 is parallel to the extending direction y1 of the right side edge. In the first slot 021 located in the lower left region, the length direction x of the first slot branch 0211 is perpendicular to the extending direction y2 of the lower side edge, and the length direction x of the second slot branch 0212 is parallel to the extending direction y2 of the lower side edge.

It should be noted that the rectangular radiating metal patch 02 generally includes two diagonal lines, and the diagonal line X1 described herein may be any one of the two diagonal lines. In addition, the radiating metal patch 02 may also have other shapes, such as a circle or a trapezoid, which is not limited in this embodiment of the present application.

Optionally, fig. 3 is a schematic structural diagram of another electronic device provided in the embodiment of the present application. As shown in fig. 3, a second slit 022 may be further formed on the radiation metal patch 02.

The side wall of the second gap 022 may also be a discontinuous side wall, and the second gap 022 may be a stripe-shaped gap. That is, the second slit 022 may be an opening formed at one side or one vertex of the rectangular radiation metal patch 02, and the length direction of the second slit 022 may be parallel to any side of the rectangular radiation metal patch 02, or any axis of symmetry, or any diagonal.

For example, the second slit 022 shown in fig. 3 may be an opening opened at an upper left vertex of the rectangular radiation metal patch 02, i.e., the second slit 022 starts at a vertex of the rectangular radiation metal patch 02. Also, referring to fig. 2, a longitudinal direction X of the second slit 022 may be parallel to an extending direction of a diagonal line X1 of the rectangular radiation metal patch 02. Thus, the second slit 022 has an angle of 45 ° (°) with any adjacent side (e.g., the upper side and the left side as shown in fig. 3). Accordingly, the second gap 022 may also be referred to as a 45 ° slot.

It should be noted that, as can be seen by continuing with fig. 2 and 3, the first slit 021 and the second slit 022 are not overlapped. Moreover, the diagonal lines of the two first slits 021 which are symmetrically arranged and the diagonal line of the second slit 022 which is parallel to the length direction can be the same diagonal line X1. Therefore, the two first slits 021 formed in the radiation metal patch 02 are symmetrically arranged on both sides of the diagonal line X1, and may also be referred to as being symmetrically arranged on both sides of the second slit 022 in the length direction, that is, the two first slits 021 are symmetrical with respect to the second slit 022. In other words, the second slit 022 is located on the central symmetry line of the two first slits 021. By the structure shown in fig. 3, the optimization of the current flow direction path can be further realized, the working bandwidth can be further expanded, and a foundation is laid for realizing dual polarization.

Optionally, the first slit branch 0211, the second slit branch 0212 and the second slit 022 described in the embodiment of the present application may be circular slits, curved slits or polygonal slits. For example, referring to fig. 1 to 3, it can be seen that two first slot branches 0211, two second slot branches 0212 and one second slot 022 are all rectangular slots with the same structure.

Optionally, fig. 4 is a schematic structural diagram of another electronic device provided in the embodiment of the present application. As can be seen from fig. 2 and 4, the antenna 00 may further include two feeding points 03 symmetrically arranged on the diagonal line X1.

Of the two feeding points 03, one feeding point 03 may be located on the first symmetry axis Y1 of the rectangular radiating metal patch 02 and close to the first side 02a of the radiating metal patch 02, and the other feeding point 03 may be located on the second symmetry axis Y2 of the rectangular radiating metal patch 02 and close to the second side 02b of the radiating metal patch 02. That is, the two feeding points 03 are respectively located on two symmetry axes Y1 and Y2 of the rectangular radiating metal patch 02 and are close to the edge of the rectangular radiating metal patch 02.

The first side 02a and the second side 02b may be perpendicular, and both the first side 02a and the second side 02b may be sides formed with the first slit 021. With the structure, the +/-45-degree dual polarization can be realized. That is, the antenna can be used as a +/-45-degree dual-polarized antenna and applied to a dual-polarized scene, and the function of the antenna is rich. Polarization refers to the direction of the electric field intensity that is formed when the antenna radiates.

Illustratively, FIG. 5 shows an antenna +45 polarization pattern in the electronic device, and FIG. 6 shows an antenna-45 polarization pattern in the electronic device. Wherein the coordinate systems shown in fig. 5 and 6 are both two-dimensional coordinate systems, 0 to 180 represent angles, phi represents the horizontal component of the electric field strength.

Optionally, the length and the width of the rectangular radiating metal patch 02 may be both greater than or equal to 3.1mm and less than or equal to 3.6mm. Then, based on the length and width of the radiating metal patch 02, in order to maximize the bandwidth expansion, the distance between each feeding point 03 and the side of the adjacent radiating metal patch 02 may be greater than or equal to 0.1mm and less than or equal to 0.5mm. That is, with reference to the another electronic device shown in fig. 7, a distance D1 between the feeding point 03 close to the first side 02a and the first side 02a may be greater than or equal to 0.1mm and less than or equal to 0.5mm, and a distance D2 between the feeding point 03 close to the second side 02b and the second side 02b may be greater than or equal to 0.1mm and less than or equal to 0.5mm.

Alternatively, also in order to maximally expand the bandwidth, based on the length and the width of the radiating metal patch 02, the width of each of the first slot branch 0211, the width of each of the second slot branch 0212, and the width of the second slot 022 described in the embodiments of the present application may be greater than or equal to 0.15mm and less than or equal to 0.2mm. The length of each first slot branch 0211 may be greater than or equal to 0.7mm and less than or equal to 1.1mm, and the length of each second slot branch 0212 may be greater than or equal to 1.1mm and less than or equal to 1.5mm, which is 1.35mm. The length of the second slot 022 may be 1/4 of the equivalent wavelength of the electromagnetic wave within the PCB 01 (i.e., the medium).

For example, referring to the electronic device shown in fig. 7, the size of the rectangular radiating metal patch 02 shown therein may be 3.4mm by 3.4mm, i.e., the length L01 and the width L02 thereof are both 3.4mm. The distance D1 between the feeding point 03 near the first side 02a and the first side 02a, and the distance D2 between the feeding point 03 near the second side 02b and the second side 02b are both 0.3mm. The width W1 of each first slot branch 0211 and the width W2 of each second slot branch 0211 are both 0.2mm, and the width W3 of the second slot 022 is 0.15mm. The length L1 of each first slot branch 0211 is 0.9mm, the length L2 of each second slot branch 0212 is 1.35mm, and the length L3 of the second slot 022 is 1.8mm.

It should be noted that the first and

second slot branches

0211 and 0212 which are connected to each other can be equivalent to two cascaded LC filters. Furthermore, the lengths of the first and

second slot branches

0211 and 0212 can affect the equivalent inductance of the LC filter, and the widths of the first and

second slot branches

0211 and 0212 can affect the equivalent capacitance of the LC filter. The equivalent inductance and the equivalent capacitance in turn affect the resonant frequency of the antenna. Therefore, the length and the width of the gap branch meet certain conditions, the effect of optimizing the resonant frequency can be achieved, and the effect of expanding the bandwidth to the maximum extent is further achieved.

Optionally, in combination with the electronic device shown in fig. 7, the PCB 01 substrate may also be square, and the PCB 01 substrate may be made of Rogers (Rogers) 5880 board, and may have a relative dielectric constant of 2.2, a loss of 0.0009, and a thickness of 0.787mm. Furthermore, the overall shape of the antenna shown may be square and may have dimensions of 6mm, i.e. 6mm in both length and width, not shown in the figures.

In order to form a complete current loop, the antenna described in the embodiment of the present application may further include a feeding structure corresponding to at least one feeding point 03. Also, when a plurality of feed structures are included, the shape and size of each feed structure may be the same. Wherein each feed structure may comprise a coaxial structure consisting of an inner conductor and an outer conductor, the inner conductor may be connected to the radiating metal patch 02 via the feed point 03 and the outer conductor may be grounded.

For example, in connection with the electronic devices shown in fig. 4 and 8, the antenna may further include a metal floor 04, the metal floor 04 being located below the PCB 01, i.e. the PCB 01 being located between the metal floor 04 and the radiating metal patch 02. Accordingly, the outer conductor of each feed structure may be grounded by connection to the metal floor 04. As shown in fig. 8, points P1 and P2 on the metal floor 04 are grounding points corresponding to the two feeding points 03.

It should be noted that, in consideration of the transmission efficiency of the electromagnetic wave and the loss in the transmission path, the inner and outer conductors of each feed structure may satisfy the impedance characteristic of 50 ohms, and the size of the feed structure is not limited in the embodiments of the present application. In addition, in order to further realize a miniaturized design and reduce the path loss of signal transmission, the antenna may be integrated with a radio frequency circuit in the electronic device, for example, the antenna and the radio frequency circuit may be packaged together by an Antenna In Package (AIP) process. Correspondingly, when the antenna and the radio frequency circuit are designed in an integrated mode, the PCB 01 can serve as the uppermost dielectric layer, the feed mode of the antenna can be changed into feed through metalized holes, and the feed structure is grounded through the through holes. Optionally, the radio frequency circuit may include: power amplifiers, filters, or low noise amplifiers.

In conjunction with the electronic device shown in fig. 4 and 8, fig. 9 shows a current distribution diagram when the antenna is operated, and arrows in fig. 9 indicate the flow of current on the surface of the PCB 01.

As can be seen from fig. 9, by providing the radiating metal patch 02 with the double L-shaped grooves (i.e., the two first slots 01) and the 45 ° grooves (i.e., the second slot 02), the current flow path on the surface of the radiating metal patch 02 is effectively changed, and the intricate flow path enables the antenna to cover the frequency band of the whole frequency range of FR2, so that the operating bandwidth of the antenna can reach about 22%. The operating bandwidth far exceeds that of the microstrip patch antenna provided by the related art.

In addition, on one hand, due to the opening of the 45-degree slot and the flexible arrangement of the position of the feed point 03, the antenna can be applied to a +/-45-degree dual-polarization scene. On the other hand, since only the slot is formed on the radiating metal patch 02, compared with the related art, the antenna has obvious advantages in the aspects of the whole thickness, the manufacturing cost, the adjustment and the measurement of the antenna through the spread spectrum measures such as the lamination design and the like. The problem of increasing the thickness of the antenna is effectively avoided, the miniaturization design is facilitated, and the antenna belongs to a low-profile structure. The small-sized design also enables the antenna to be flexibly arrayed to form array antennas in various forms such as an area array or a linear array. The linear array means that a plurality of antennas can be linearly arranged; the area array means that a plurality of antennas can be arranged in an array.

By way of example, taking an array antenna forming a linear array as an example, the embodiment of the present application provides yet another electronic device. The electronic device may include a plurality of antenna modules. Each antenna module may include: a plurality of antennas 00 arranged linearly. The antenna 00 may be the antenna shown in any of fig. 1, 4 and 8.

For example, in consideration of the factors of high frequency of millimeter waves, narrow beam, and limited spatial coverage, fig. 10 illustrates a left view, a right view, and a rear view of an electronic device, taking as an example that includes three antenna modules M1, M2, and M3, each of which includes four antennas 00 arranged linearly, that is, each of which includes 1 × 4 array antennas. As can be seen with reference to fig. 10, the electronic device may further include a metal middle frame 10 and a rear cover 20. The antenna module M1 may be located in a middle upper region of the left side frame 101 of the metal middle frame 10, the antenna module M2 may be located in a middle lower region of the right side frame 102 of the metal middle frame 10, and the antenna module M3 may be located in a right upper region of the rear cover 20. Certainly, the position of the antenna module on the electronic device is not limited in the embodiment of the present application.

It should be noted that the Return Loss (RL) of the antenna and the Voltage Standing Wave Ratio (VSWR) of the antenna can reflect the operating performance of the antenna.

Wherein, return loss refers to: refers to the ratio of the power reflected from the rf input signal to the power of the input signal, and is expressed in decibels (db). The return loss is a negative value, and the smaller the return loss is, that is, the larger the absolute value of the return loss is, the better the impedance matching of the antenna is, and further, the smaller the isolation of the antenna is, the better the working performance of the antenna is. The voltage standing wave ratio is as follows: the ratio of the amplitude of the reflected wave to the amplitude of the incident wave is, ideally, 1 when the impedances are perfectly matched. However, in application, there is generally a reflection phenomenon, and the larger the reflection is, the larger the voltage standing wave ratio is, so it is known that the closer the voltage standing wave ratio is to 1, the smaller the reflection is, the better the operating performance of the antenna is. And, the voltage standing wave ratio and the return loss can satisfy the following relation: RL =20 log10[ (VSWR + 1)/(VSWR-1) ].

In order to show the good operation performance of the antenna described in the embodiment of the present application, fig. 11 shows a return loss curve of the antenna, and fig. 12 shows a voltage standing wave ratio curve of the antenna. In both fig. 11 and 12, the horizontal axis represents the operating frequency (F) of the antenna, the vertical axis of fig. 11 represents the return loss of the antenna, and the vertical axis of fig. 12 represents the voltage standing wave ratio.

Referring to fig. 11, it can be seen that the return loss of the antenna is less than-10 db at the operating frequency between 24.168GHz and 29.916 GHz. Furthermore, the isolation of the antenna is determined to be small in a wide working frequency range, and the working performance of the antenna is good. Similarly, referring to fig. 12, it can be seen that the voltage standing wave ratios of the antenna are both less than 2, i.e. close to the ideal value of 1, at the operating frequencies between 24.168GHz and 29.916 GHz. Therefore, the antenna can be determined to have good working performance.

In conjunction with the above embodiments, the antenna described in the embodiments of the present application may be referred to as a low-profile dual-polarized broadband antenna. Moreover, the antenna not only can be suitable for millimeter wave frequency bands, but also can be suitable for other frequency bands (such as Sub6G frequency bands), and particularly can be used as a +/-45-degree dual-polarized antenna in a dual-polarized scene, so that the antenna receiving efficiency is improved. In addition, the antenna described in the embodiment of the present application may be applied to various electronic devices, such as a mobile phone terminal shown in fig. 10, or may also be applied to a wireless electronic communication device, such as a wireless router or a Customer Premise Equipment (CPE).

The above description is only exemplary of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electronic device, characterized in that the electronic device comprises: an antenna, the antenna comprising: the antenna comprises a Printed Circuit Board (PCB), a radiating metal patch and at least one feed point;

the radiating metal patch is arranged on the PCB, and the at least one feed point is arranged on the radiating metal patch;

two first gaps are formed in the radiating metal patch, the side wall of each first gap is a discontinuous side wall, each first gap comprises a first gap branch and a second gap branch which are communicated, and the length direction of each first gap branch is intersected with the length direction of each second gap branch;

the radiation metal patch is rectangular, and one first gap and the other first gap in the two first gaps are symmetrically arranged on two sides of a diagonal line of the radiation metal patch;

a second gap is further formed in the radiation metal patch, the side wall of the second gap is a discontinuous side wall, the second gap is a strip-shaped gap, the second gap starts from one vertex of the radiation metal patch, and the length direction of the second gap is parallel to the extension direction of the diagonal line of the radiation metal patch; the diagonal lines parallel to the length direction of the second gaps are the same as the diagonal lines at the diagonal positions where the two first gaps are symmetrically arranged.

2. The electronic device of claim 1, wherein a length of the first slot branch is less than a length of the second slot branch, and a length direction of the first slot branch is perpendicular to a length direction of the second slot branch.

3. The electronic device according to claim 1 or 2, wherein the radiating metal patch in a rectangular shape has a length and a width both equal to or greater than 3.1mm and equal to or less than 3.6mm;

4. The electronic device according to claim 1 or 2, wherein a width of the second slit is greater than or equal to 0.15mm and less than or equal to 0.2mm;

5. The electronic device of claim 1 or 2, wherein the antenna comprises: the two feeding points are symmetrically arranged on the diagonal line;

the first side edge is perpendicular to the second side edge, and the first side edge is the side edge formed with the first gap.

6. The electronic device of claim 5, wherein each of the feeding points is spaced from the side of the adjacent radiating metal patch by a distance greater than or equal to 0.1mm and less than or equal to 0.5mm.

7. The electronic device according to claim 1 or 2, characterized in that the electronic device comprises: a plurality of antenna modules;