CN112736471B - Antenna and electronic equipment - Google Patents

Abstract

The present application discloses an antenna, which includes an antenna body, two first-type through slots and two second-type through-slots are arranged on the antenna body, the length of the two first-type through-slots is the same as the length of the two first-type through-slots. The lengths of the two second-type through-slots are different, and the two first-type through-slots are used to realize the resonance of the first frequency band, so that the antenna supports the sending and receiving of radio frequency signals in the first frequency band, and the two second-type through-slots The through slot is used to realize the resonance of the second frequency band, so that the antenna supports the sending and receiving of the radio frequency signal of the second frequency band. The invention also provides an electronic device with the antenna. The antenna in this application can use a small size to realize the transmission and reception of radio frequency signals in two frequency bands, which can effectively improve the performance of the antenna and meet the size and performance requirements when the space or clearance area of electronic equipment is insufficient.

Description

Antennas and Electronics

technical field

The invention relates to the field of wireless communication, in particular to an antenna for wireless communication and electronic equipment with the antenna.

Background technique

At present, with the increase of 5G communication frequency bands, such as the sub6GHz NR frequency band, the number of antennas is more than that of 4G LTE. At the same time, full screens and curved screens have become the mainstream. Due to the design requirements of full screens and curved screens, the clearance area and space are getting smaller and smaller, which has become a contradiction with the increase in the number of antennas under 5G communication. At present, in order to meet the needs of full-screen and curved screens, the size of the antenna often has to be reduced, resulting in low efficiency and narrow bandwidth of the antenna. In particular, for UWB (Ultra WideBand, ultra-wideband) antennas, since the transmission distance of UWB is usually within 10m and the bandwidth above 1GHz is used, UWB does not use carrier waves, but uses nanosecond to picosecond non-sine wave narrow pulses Therefore, it occupies a wide range of spectrum, and when the size of the UWB antenna is compressed, it has a great impact on the transmission performance of the UWB.

Contents of the invention

Embodiments of the present application provide an antenna and an electronic device having the antenna, so as to solve the above problems.

In one aspect, an antenna is provided, including an antenna body, two first-type through slots and two second-type through-slots are provided on the antenna body, the lengths of the two first-type through-slots are the same as the lengths of the two first-type through-slots. The lengths of the two second-type through-slots are different, and the two first-type through-slots are used to realize the resonance of the first frequency band, so that the antenna supports the sending and receiving of radio frequency signals in the first frequency band, and the two second-type through-slots The through slot is used to realize the resonance of the second frequency band, so that the antenna supports the sending and receiving of the radio frequency signal of the second frequency band.

On the other hand, an electronic device is also provided, the electronic device includes an antenna, and the antenna includes an antenna body, and two first-type through slots and two second-type through slots are arranged on the antenna body, the The lengths of the two first-type through-slots are different from the lengths of the two second-type through-slots, and the two first-type through-slots are used to realize the resonance of the first frequency band, so that the antenna supports the first frequency band The two second-type through slots are used to realize the resonance of the second frequency band, so that the antenna supports the transceiver of the radio frequency signal of the second frequency band.

The antenna in this application can use a small size to realize the transmission and reception of radio frequency signals in two frequency bands, which can effectively improve the performance of the antenna and meet the size and performance requirements when the space or clearance area of electronic equipment is insufficient.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic plan view of an antenna in an embodiment of the present application.

FIG. 2 is a schematic plan view of an antenna in another embodiment of the present application.

FIG. 3 is a schematic plan view of an antenna in yet another embodiment of the present application.

FIG. 4 is a current distribution diagram when the antenna works in the 6.5 GHz frequency band in an embodiment of the present application.

FIG. 5 is a current distribution diagram when the antenna works in the 8GHZ frequency band in an embodiment of the present application.

FIG. 6 is a schematic diagram of changes in the resonance center frequency of the antenna when the length of the second type of through slot is fixed and the length of the first type of through slot is changed in an embodiment of the present application.

FIG. 7 is a schematic diagram of changes in the resonance center frequency of the antenna when the length of the first type of through slot is fixed and the length of the second type of through slot is changed in an embodiment of the present application.

Fig. 8 is a schematic plan view of an antenna in another embodiment of the present application.

FIG. 9 is a structural block diagram of an electronic device in an embodiment of the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the term "thickness" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than implying Or an indication that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

Please refer to FIG. 1 , which is a schematic plan view of an antenna 1 in an embodiment of the present application. As shown in Figure 1, the antenna 1 includes an antenna body 10, and the antenna body 10 is provided with two first-type through-slots 11 and two second-type through-slots 12, the two first-type through-slots The length of 11 is different from the length of the two second-type through-slots 12, and the two first-type through-slots 11 are used to realize the resonance of the first frequency band, so that the antenna 1 supports the radio frequency signal of the first frequency band For transceiving, the two second-type through slots 12 are used to realize the resonance of the second frequency band, so that the antenna 1 supports the transceiving of radio frequency signals of the second frequency band.

Therefore, in this application, through the above-mentioned design, the antenna 1 can use a smaller size to realize the transmission and reception of radio frequency signals in two frequency bands, which can effectively improve the performance of the antenna and meet the size of the electronic equipment when the space or headroom area is insufficient. and performance requirements.

As shown in FIG. 1 , the two first-type through-slots 11 include a first through-slot 111 and a second through-slot 112 , and the first through-slot 111 and the second through-slot 112 extend from the two sides of the antenna body 10 . Edges on two opposite sides extend toward the middle of the antenna body 10 . The two second-type through-slots 12 include a third through-slot 121 and a fourth through-slot 122. Extend to the middle part of the antenna body.

That is, the openings of the first through slot 111 and the second through slot 112 are located at the edges of two opposite sides of the antenna body 10, and the first through slot 111 and the second through slot 112 extend to the non-edge position of the antenna body 10 . The openings of the third through-slot 121 and the fourth through-slot 122 are located at the edges of the other two opposite sides of the antenna body 10, and the third through-slot 121 and the fourth through-slot 122 also extend to the antenna body 10 for non-edge locations.

In some embodiments, the two opposite sides where the openings of the first through slot 111 and the second through slot 112 are located are two opposite sides of the antenna body 10 along the first direction D1, and the second through slot 112 is located on two opposite sides along the first direction D1. The other two opposite sides where openings of the three-way slot 121 and the fourth through-slot 122 are located are two opposite sides of the antenna body 10 along the second direction D2. Wherein, the first direction D1 is not parallel to the second direction D2.

Therefore, on the periphery of the antenna body 10 , the openings of the first through-slot 111 and the second through-slot 112 are arranged alternately with the openings of the third through-slot 121 and the fourth through-slot 122 . For example, as shown in FIG. 1 , along the counterclockwise direction of the antenna body 10, the opening of the first through slot 111, the opening of the third through slot 121, the opening of the second through slot 112 and the fourth The openings of the through grooves 122 are arranged sequentially.

Wherein, although the two opposite sides where the openings of the first through slot and the second through slot are located are two opposite sides of the antenna body along the first direction, the third through slot and the fourth through slot The other two opposite sides where the opening of the slot is located are the two opposite sides of the antenna body along the first direction, but the openings of the first through slot and the second through slot do not necessarily need to be in the shape of the antenna body 10 The geometric center of the antenna body 10 is symmetrical, and the openings of the third through slot and the fourth through slot do not necessarily need to be symmetrical about the geometric center of the antenna body 10, as long as they are roughly arranged on two opposite sides.

Wherein, in one embodiment, the first direction D1 and the second direction D2 are vertical directions, for example, as shown in FIG. 1, the first direction D1 is the transverse direction of the viewing angle in FIG. 1, and the The second direction D2 is the longitudinal direction of the viewing angle in FIG. 1 . Obviously, in other embodiments, the first direction D1 and the second direction D2 may also be other directions, as long as the first direction D1 and the second direction D2 are not parallel.

Wherein, as shown in FIG. 1 , the first through-slot 111 , the second through-slot 112 , the third through-slot 121 and the fourth through-slot 122 are all semi-closed through-slots opened at the edge of the antenna body 10 .

That is, the first through slot 111 , the second through slot 112 , the third through slot 121 and the fourth through slot 122 do not extend from one edge of the antenna body 10 to the other edge. In the present application, the lengths of the first through slot 111 , the second through slot 112 , the third through slot 121 and the fourth through slot 122 are significantly smaller than the lengths of the first through slot 111 and the second through slot 112 of the antenna body 10 . , the length in the extending direction of the third through-slot 121 and the fourth through-slot 122 .

Wherein, the antenna body 10 is a plate-shaped body, and the first through-slot 111, the second through-slot 112, the third through-slot 121 and the fourth through-slot 122 all pass through the antenna body 10 in the thickness direction. The antenna body 10 is described above.

That is, in the present application, the term “through slot” means a slot that runs through the antenna body 10 in the thickness direction of the antenna body 10 , and between the antenna body 10 and the antenna body 10 On a plane perpendicular to the thickness, the first through-slot 111, the second through-slot 112, the third through-slot 121 and the fourth through-slot 122 are semi-closed through-slots with only one opening at the edge of the antenna body 10 .

Wherein, the thickness direction of the antenna body 10 is a direction perpendicular to the extension directions of the first through slot 111 , the second through slot 112 , the third through slot 121 and the fourth through slot 122 .

In some embodiments, the angle difference between the extension direction of the first through slot 111 and the second through slot 112 and the first direction D1 is less than a first preset angle, and the third through slot 121 and the fourth through slot The angle difference between the extending direction of 122 and the second direction D2 is smaller than the second predetermined angle.

Wherein, the first preset angle and the second preset angle may be angles less than 45 degrees such as 10 degrees, 15 degrees, 20 degrees, etc., so that the first through groove 111 and the second through groove 112 Although the openings are provided on the edges of the antenna body on opposite sides along the first direction D1; although the openings of the third through slot 121 and the fourth through slot 122 are provided on the second side of the antenna body along the second The edges on the opposite sides in the direction D2, but the extension direction of the first through groove 111 and the second through groove 112 (the extension direction of the groove body) can be slightly deviated from the first direction D1, and the third through groove 121 And the extending direction of the fourth through groove 122 (the extending direction of the groove body) may deviate slightly from the second direction D2. Moreover, the extending directions of the first through-slot 111 and the second through-slot 112 may be the same or different, and the extending directions of the third through-slot 121 and the fourth through-slot 122 may also be the same or different. For more specific content, please refer to the following description.

As shown in FIG. 1 , in one embodiment, the extension directions of the first through groove 111 and the second through groove 112 are parallel to the first direction D1, and the first through groove 121 and the second through groove 121 The extension lines of the two slots 122 are collinear and pass through the geometric center C1 of the antenna body 10; the extension directions of the third slot 121 and the fourth slot 122 are parallel to the second direction D2, and the The extension lines of the third slot 121 and the fourth slot 122 are collinear and pass through the geometric center C1 of the antenna body 10 .

As shown in FIG. 1 , in an embodiment, the first direction D1 and the second direction D2 are perpendicular. And because the lengths of the first through slot 111, the second through slot 112, the third through slot 121 and the fourth through slot 122 are significantly smaller than the lengths of the antenna body 10 in the first through slot 111, the second through slot 112, The length of the extension direction of the third through groove 121 and the fourth through groove 122, thus, the first through groove 111, the second through groove 112, the third through groove 121 and the fourth through groove 122 form The "+" shape structure with the middle part removed.

Further, the first through slot 111 and the second through slot 112 may have the same length, and the third through slot 121 and the fourth through slot 122 may also have the same length. Therefore, the first through-slot 111 and the second through-slot 112 are symmetrically arranged on two opposite sides of the antenna body 10, and the third through-slot 121 and the fourth through-slot 122 are symmetrically arranged on the antenna body 10. The other two opposite sides of the body 10 .

Obviously, the lengths of the first through slot 111 and the second through slot 112 may also be different, and the lengths of the third through slot 121 and the fourth through slot 122 may also be different.

Please refer to FIG. 2 , which is a schematic plan view of an antenna 1 in another embodiment of the present application. As shown in FIG. 2 , in another embodiment, the extension directions of the first through groove 111 and the second through groove 112 are not parallel, and the extension directions of the third through groove 121 and the fourth through groove 122 The direction of extension is also not parallel. For example, as shown in FIG. 2 , the extending direction of the first through-slot 111 and the first direction D1 have an included angle smaller than a first preset angle, and the extending direction of the third through-slot 121 and the The second direction D2 has an included angle smaller than a second predetermined angle.

Wherein, when the extension directions of the first through groove 111 and the second through groove 112 are not parallel, the lengths of the first through groove 111 and the second through groove 112 may be the same or different, and in the When the extension directions of the third through-slot 121 and the fourth through-slot 122 are not parallel, the lengths of the third through-slot 121 and the fourth through-slot 122 may also be the same or different.

That is, the first through-slot 111 and the second through-slot 11 may be arranged asymmetrically, and the third through-slot 121 and the fourth through-slot 122 may also be arranged asymmetrically.

Apparently, the extending directions of the first through-slot 111 and the second through-slot 112 can have an included angle with the first direction D1 that is less than a first preset angle, and the third through-slot 121 and the second through-slot 121 The extending direction of the fourth through groove 122 may also have an included angle with the second direction D2 that is smaller than a second preset angle.

Wherein, as shown in FIG. 1 and FIG. 2 , in some embodiments, the antenna body 10 is separated from each other by the first through slot 111 , the second through slot 112 , the third through slot 121 and the fourth through slot 122 . A feed point F1 is provided in the target zone Z1 surrounded by the end P1 of the opening.

That is, in some embodiments, the feed point F1 for connecting with the feed source and receiving the feed signal is set on the antenna body 10 surrounded by the ends P1 of the respective through slots away from the respective openings. in the target zone Z1.

Wherein, the feeding point F1 is set at a position in the target zone Z1 deviated from the geometric center C1 of the antenna body 10 .

As shown in FIG. 1 and FIG. 2 , the target area Z1 is an area surrounding the geometric center C1 of the antenna body 10 . The feed point F1 is arranged in the target zone Z1 of the antenna body 10 , but is located at a position deviated from the geometric center C1 of the antenna body 10 .

In some embodiments, the geometric center C1 of the antenna body 10 in FIG. A Cartesian coordinate system is established with the third through-slot 121 as the positive axis of the Y-axis and the fourth through-slot 122 as the negative axis of the Y-axis. The coordinate position of the feed point F1 can be (1, 0.6), the unit For mm (millimeters). That is, in the viewing angle shown in FIG. 1 , the feeding point F1 is located at a position shifted 1 mm to the right and 0.6 mm upward from the geometric center C1 of the antenna body 10 .

Wherein, in this application, the lengths of the two first-type through-slots 11 are greater than the lengths of the two second-type through-slots 12, and the resonant center frequency of the first frequency band is lower than that of the second frequency band. resonant center frequency. That is, in the present application, the length of any one of the first through groove 111 and the second through groove 112 is greater than the length of any one of the third through groove 121 and the fourth through groove 122; The resonance center frequency of the first frequency band realized by the first through slot 111 and the second through slot 112 is lower than the resonance center frequency of the second frequency band realized by the shorter length of the third through slot 121 and the fourth through slot 122 .

In some embodiments, the first frequency band is a low frequency band, and the second frequency band is a high frequency band.

In some embodiments, the length of at least one of the two first-type through-slots 11 is 3.53 mm, and the length of at least one of the two second-type through-slots 12 is 2.53 mm. For example, when the lengths of the first through groove 111 and the second through groove 112 are the same, the lengths of the first through groove 111 and the second through groove 112 are both 3.53mm. When the lengths of the fourth through slots 122 are the same, the lengths of the third through slots 121 and the fourth through slots 122 are both 2.53 mm.

Obviously, in other embodiments, the lengths of the two first-type through-slots 11 can also be other suitable values, and the lengths of the two second-type through-slots 12 can also be other suitable values, as long as the It is sufficient that the lengths of the two first-type through-slots 11 are greater than the lengths of the two second-type through-slots 12 .

Wherein, as shown in FIG. 1 and FIG. 2 , the antenna body 10 is a circular plate-shaped body, that is, a circular pie shape.

In one embodiment, the radius of the antenna body 10 is 4.5 mm. For example, for the embodiment of FIG. 1, the radius of the antenna body 10 is 4.5 mm, the first through slot 111 and the second through slot 112 are arranged symmetrically, and both have a length of 3.53 mm, and the third through slot 121 and The fourth through grooves 122 are also arranged symmetrically, and the lengths are both 2.53 mm.

Please refer to FIG. 3 , which is a schematic plan view of the antenna 1 in another embodiment of the present application. In yet another embodiment, the antenna body 10 is a square plate.

That is, the antenna body 10 may also be square.

Wherein, in some embodiments, when the antenna body 10 is a square plate, the length or width of the antenna body is 4.5 mm. Wherein, correspondingly, the length of at least one of the two first-type through-slots 11 is 3.53 mm, and the length of at least one of the two second-type through-slots 12 is 2.53 mm.

Wherein, when the antenna body 10 is a square plate, the first direction is a direction parallel to two opposite sides of the antenna body 10, and the second direction is a direction parallel to the other two sides of the antenna body 10. opposite sides parallel to each other.

Apparently, in other embodiments, the antenna body 10 may also be a board of other shapes, for example, may also be an elliptical board, and so on.

Wherein, the shape of the antenna body 10 in this application refers to the shape of the projection of the antenna body 10 in the thickness direction of the antenna body 10 .

Wherein, in the present application, the antenna 1 is a UWB (Ultra WideBand, ultra-wideband) patch antenna, and the resonance center frequency of the first frequency band realized by the first through slot 111 and the second through slot 112 is 6.5GHZ, The resonant center frequency of the second frequency band realized by the third through slot 121 and the fourth through slot 122 is 8GHZ. Since the working frequency range of UWB is from 3.1 GHz to 10.6 GHz, the minimum working bandwidth is 500 MHz. At present, the center frequencies of mainstream UWB frequency bands are 6.5 GHz and 8 GHz respectively. Therefore, the antenna 1 of the present application can support two mainstream frequency bands of UWB.

Please refer to FIG. 4 , which is a current distribution diagram when the antenna 1 works in the 6.5 GHz frequency band in an embodiment of the present application. Wherein, the current distribution diagram is schematically illustrated by the antenna structure shown in FIG. 1 .

As can be seen from Figure 4, the 6.5 GHz current is significantly more distributed in the longer-length first through slot 111 and the second through slot 112, and the 6.5 GHz current is mainly distributed in the first through slot 111 and the second through slot 112. The two long slits of the through groove 112.

Please refer to FIG. 5 , which is a current distribution diagram when the antenna 1 works in the 8GHz frequency band in an embodiment of the present application. Wherein, the current distribution diagram is also schematically illustrated by the antenna structure shown in FIG. 1 .

It can be seen from FIG. 5 that the current at 8 GHz is distributed significantly more in the shorter length of the third through slot 121 and the fourth through slot 122 , and the current at 8 GHz is mainly distributed in the third through slot 121 with a longer length. And the two short gaps of the fourth through groove 122 .

In this application, as a whole, the current path is extended by slits on the edge of the antenna body 10 and through the above-mentioned unique unsealing method, so that the size of the antenna can be reduced, and the performance of the antenna can be maintained or improved.

Wherein, as shown in FIGS. 4-5 , in the present application, the antenna 1 may further include an antenna substrate 20 , and the antenna body 10 of the present application is carried on the antenna substrate 20 . Obviously, the antenna substrate 20 may also be a structure such as a circuit board in the electronic device where the antenna 1 is installed, and may not belong to the structure of the antenna 1 .

Among them, in order to illustrate the impact of the first through-slot 111 and the second through-slot 112 in this application, the influence of the two first-type through-slots 11 on lower frequency bands such as 6.5GHZ, and to illustrate the third through-slot 121 and The influence of the fourth through slot 122 and the two second type through slots 12 on higher frequency bands such as 8GHZ has been simulated and tested.

Please refer to FIG. 6 , which is a schematic diagram of changes in the resonance center frequency of the antenna when the length of the second type of through slot is fixed and the length of the first type of through slot is changed in an embodiment of the present application.

Wherein, assuming that the lengths of the first through groove 111 and the second through groove 112 are equal and L1, when the lengths of the two second type through grooves 12 of the third through groove 121 and the fourth through groove 122 are fixed, When changing the length L1 of the two first-type through-slots 11, the first through-slot 111 and the second through-slot 112, it can be seen from FIG. The frequency corresponding to the maximum amplitude of the return loss parameter in the parameters has changed greatly. That is to say, the resonance center frequency of the low-frequency band has obviously changed greatly, while the resonance center frequency of the high-frequency band has basically not changed.

For example, as shown in Figure 6, when the length of the second type of through slot 12 is kept constant, when the length L1 of the first type of through slot 11=3.2mm, the resonance of the corresponding resonance waveform F11 in the low frequency band The center frequency is about 7.05GHZ. When the length L1 of the first type of through-slot 11 is 3.35mm, the corresponding resonant waveform F12 has a resonance center frequency of about 6.85GHZ in the low-frequency band. In the first-type through-slot 11 When the length L1=3.53mm, the corresponding resonant waveform F13 has a resonant center frequency of about 6.55GHZ in the low frequency band. In the high frequency band, the resonant center frequency basically maintains around 8GHZ.

Therefore, it can be seen that the function of the first through slot 111 and the second through slot 112 is to resonate in a low frequency band such as 6.5 GHZ.

Please refer to FIG. 7 , which is a schematic diagram of the change of the resonant center frequency of the antenna when the length of the first type of through slot is fixed and the length of the second type of through slot is changed in an embodiment of the present application.

Wherein, the lengths of the two second-type through-slots 12, the third through-slot 121 and the fourth through-slot 122, are equal and L2, when the two first through-slots 111 and the second through-slots 112 are fixed, The length of the first type of through-slot 11, and when changing the length L2 of the two second-type through-slots 12 of the third through-slot 121 and the fourth through-slot 122, as can be seen from FIG. 7, the S parameter of the high-frequency band Great changes have taken place, especially the corresponding frequency when the amplitude of the return loss parameter in the S parameter is the largest. That is, the resonant center frequency of the high-frequency band obviously changes greatly, while the resonant center frequency of the low-frequency band basically does not change.

For example, as shown in Figure 7, when the length of the first type of through groove 11 is kept constant, when the length L2 of the second type of through groove 12=2.53mm, the resonance of the corresponding resonance waveform F21 in the high frequency band The center frequency is about 8GHZ. When the length L2 of the second type of through-slot 12=2.7mm, the corresponding resonant waveform F22 has a resonant center frequency of about 7.75GHZ in the high-frequency band. In the length L2 of the second-type through-slot 12 = 2.9mm, the corresponding resonant waveform F23 has a resonant center frequency of about 7.5GHZ in the high frequency band. In the low frequency band, the resonant center frequency is basically maintained at around 6.5GHZ.

Therefore, it can be seen that the function of the third through-slot 121 and the fourth through-slot 122 is to resonate in a high-frequency band such as 8GHZ.

Therefore, in the present application, the lengths of the first through slot 111 and the second through slot 112 can be changed according to needs before leaving the factory to realize the resonance of different low-frequency bands, and the lengths of the third through slot 121 and the second through slot 112 can be changed according to needs. The length of the fourth through slot 122 is used to realize the resonance of different high-frequency bands.

Please refer to FIG. 8 , which is a schematic plan view of the antenna 1 in other embodiments of the present application. In other embodiments, the ends P1 of the first through-slot 111 , the second through-slot 112 , the third through-slot 121 and the fourth through-slot 122 away from their respective openings also communicate with an end portion of the through-slot T1 respectively. The extending direction of the end through-slot T1 is perpendicular to the extending direction of the first through-slot 111 , the second through-slot 112 , the third through-slot 121 , and the fourth through-slot 122 .

Specifically, the ends P1 of the first through-slot 111, the second through-slot 112, the third through-slot 121, and the fourth through-slot 122 away from their respective openings communicate with the middle part of the corresponding end through-slot T1. The first through-slot 111 , the second through-slot 112 , the third through-slot 121 , and the fourth through-slot 122 form a T-shaped through-slot together with the respective end-portion through-slots T1 .

By opening the T-shaped slot on the antenna body 10, the current length of the antenna 1 can be further increased, thereby improving the performance of the antenna.

Obviously, in some embodiments, the ends P1 of the first through-slot 111 , the second through-slot 112 , the third through-slot 121 and the fourth through-slot 122 away from their respective openings can also be connected to the corresponding end of the through-slot T1 The end portions of the first through groove 111 , the second through groove 112 , the third through groove 121 and the fourth through groove 122 form an L-shaped through groove together with the respective connected end portion through grooves T1 .

Wherein, the lengths of the end portions T1 of the first through-slot 111 , the second through-slot 112 , the third through-slot 121 , and the fourth through-slot 122 away from the ends P1 of the respective openings communicated with each other may be the same or different.

In some embodiments, the lengths of the end passages T1 communicating with the ends P1 of the first through-slot 111 , the second through-slot 112 , the third through-slot 121 , and the fourth through-slot 122 away from their openings respectively can be equal to The lengths of the first through slot 111 , the second through slot 112 , the third through slot 121 and the fourth through slot 122 are in a preset proportional relationship. For example, each end slot T1 may be 60% of the length of the first slot 111 , the second slot 112 , the third slot 121 , and the fourth slot 122 communicating with it, and so on.

In some embodiments, the length of the end slot T1 connected by the first slot 111 and the second slot 112 has the same proportional relationship with the length of the first slot 111 and the second slot 112 and is The first proportional relationship, the length of the end through groove T1 of the third through groove 121 and the fourth through groove 122 has the same proportional relationship with the length of the third through groove 121 and the fourth through groove 122 and is the second. A proportional relationship, the first proportional relationship being different from the second proportional relationship. For example, the first proportional relationship is 60%, the second proportional relationship is 70%, and so on.

Therefore, in the present application, by providing the above-mentioned antenna 1 , the performance requirements of the antenna can be met with a smaller size than the existing ones, and the performance of the antenna can even be improved.

Wherein, the widths of the first through groove 111, the second through groove 112, the third through groove 121, the fourth through groove 122, and the end through groove T1 in this application can be significantly smaller than the first through groove 111, The lengths of the second through-slot 112 , the third through-slot 121 , the fourth through-slot 122 , and the extending direction of the end through-slot T1 . For example, the widths of the first through-slot 111, the second through-slot 112, the third through-slot 121, the fourth through-slot 122 and the end through-slot T1 can be respectively 112, the third through groove 121, the fourth through groove 122 and 1/10 of the length of the extension direction of the end through groove T1, etc.; , the widths of the third slot 121 , the fourth slot 122 and the end slot T1 are specifically defined. Wherein, the width of the first through groove 111, the second through groove 112, the third through groove 121, the fourth through groove 122 and the end through groove T1 refers to: the width of the first through groove 111, the second through groove The length direction (ie, the extending direction) of the slot 112 , the third slot 121 , the fourth slot 122 , and the end slot T1 is perpendicular to the thickness direction of the antenna body 10 .

Wherein, the antenna body 10 is made of metal material or conductive alloy, for example, made of copper, silver, iron and other materials, or made of copper-silver alloy, copper-iron alloy and the like.

Please refer to FIG. 9 , which is a schematic diagram of the back of the electronic device 100 in an embodiment of the present application. Wherein, the electronic device 100 includes at least one antenna 1 and a rear case 2 in any one of the foregoing embodiments.

Wherein, the antenna 1 is a patch antenna, which can be attached to the inner surface of the rear case 2 of the electronic device 100 . In some embodiments, when the rear case 2 of the electronic device 100 is a non-metallic rear case, for example, it may be a non-metallic rear case made of metal, glass or the like. In some embodiments, the rear case 2 of the electronic device 100 may also be a metal rear case, and the portion of the rear case 2 corresponding to the antenna 1 is provided with gaps such as micro-slits to form a clearance area. In other embodiments, the antenna 1 can also be attached to the inner surface of the frame of the electronic device 100 with gaps such as micro-slits, and the position can correspond to the gaps on the frame, so as to realize the transmission and reception of antenna signals, or It can be arranged on the circuit board of the electronic device 100 near the edge, and close to the rear case 2 or frame of the electronic device 100 where there are gaps such as micro-slits.

Wherein, in this embodiment, as shown in FIG. 9 , the number of antennas 1 can be multiple, for example, three, and the three antennas 1 are arranged close to each other and arranged in an "L" shape on the electronic device. The inner surface of the rear shell 2 of 100. Since FIG. 9 is a schematic view viewed from the rear side of the electronic device 100, the three antennas 1 are in an inverted "L" shape.

As shown in FIG. 9 , in some embodiments, the plurality of antennas 1 can be arranged adjacent to the camera hole 3 of the rear case 2 , for example, arranged side by side with the camera hole 3 in the rear case 2 Short edge position. In other embodiments, the plurality of antennas 1 may also be arranged in the middle of the rear case 2 .

Through the antenna 1, when the electronic device 100 of the present application is designed as a full screen or a curved screen, resulting in a reduced clearance area, since the size of the antenna 1 is also reduced and meets the antenna performance requirements, it can be well adapted to existing Electronic devices with full screens and curved screens

Wherein, the electronic device 100 also includes other components, such as a rear case, a camera, a memory, etc., which are not related to the improvement of the present invention, so details are not repeated here.

The electronic device 100 involved in the embodiment of the present invention may include various mobile phones with antennas, tablet computers and other handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, and various forms of User equipment (User Equipment, UE), mobile station (Mobile Station, MS) and so on. For convenience of description, the above-mentioned devices are collectively referred to as electronic devices.

Therefore, in this application, the antenna 1 can use a smaller size to realize the transmission and reception of radio frequency signals in two frequency bands, which can effectively improve the performance of the antenna and meet the size and performance requirements when the space or clearance area for electronic equipment is insufficient.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

The embodiments of the present invention have been described in detail above, and specific examples have been used in this paper to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only used to help understand the method of the present invention and its core idea; at the same time, for Those skilled in the art will have changes in the specific implementation and scope of application according to the idea of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (19)

1. An antenna, comprising an antenna body, characterized in that the antenna body is provided with two first-type through-slots and two second-type through-slots, the length of the two first-type through-slots is the same as the length of the two first-type through-slots The lengths of the two second-type through-slots are different, and the two first-type through-slots are used to realize the resonance of the first frequency band, so that the antenna supports the transmission and reception of radio frequency signals in the first frequency band, and the two second-type through-slots The second type of through slot is used to realize the resonance of the second frequency band, so that the antenna supports the transmission and reception of the radio frequency signal of the second frequency band; wherein, the two first type of through slots include a first through slot and a second through slot, The first through-slot and the second through-slot extend from the edges of two opposite sides of the antenna body to the middle of the antenna body; the two second-type through-slots include a third through-slot and a fourth through-slot , the third through-slot and the fourth through-slot extend from the edges of the other two opposite sides of the antenna body to the middle part of the antenna body. 2. The antenna according to claim 1, characterized in that, the first through slot, the second through slot, the third through slot and the fourth through slot are all semi-closed through openings at the edge of the antenna body. groove. 3. The antenna according to claim 2, wherein the two opposite sides where the openings of the first through slot and the second through slot are located are two opposite sides of the antenna body along the first direction. The other two opposite sides where the openings of the third through slot and the fourth through slot are located are the two opposite sides of the antenna body along the second direction, wherein the first direction and the second direction are different. parallel. 4. The antenna according to claim 3, wherein the antenna body is a plate-shaped body, and the first through slot, the second through slot, the third through slot and the fourth through slot are all in the antenna The thickness direction of the body runs through the antenna body. 5. The antenna according to claim 3, wherein the angle difference between the extending direction of the first through slot and the second through slot and the first direction is smaller than a first preset angle, and the third The angle difference between the extension direction of the slot and the fourth slot and the second direction is smaller than the second predetermined angle. 6. The antenna according to claim 5, wherein the extension directions of the first through slot and the second through slot are parallel to the first direction, and the first through slot and the second through slot The extension lines of the slots are collinear and pass through the geometric center of the antenna body; the extension directions of the third slots and the fourth slots are parallel to the second direction, and the third slots and the fourth slots are parallel to the second direction. The extension lines of the slots are collinear and pass through the geometric center of the antenna body. 7. The antenna according to claim 6, wherein the first direction is perpendicular to the second direction. 8 . The antenna according to claim 6 , wherein the first through slot and the second through slot have the same length, and the third through slot and the fourth through slot have the same length. 9. The antenna according to claim 2, wherein the antenna body is a target area surrounded by ends of the first through slot, the second through slot, the third through slot and the fourth through slot away from the respective openings There is a feed point in it. 10 . The antenna according to claim 9 , wherein the feed point is set at a position in the target area deviated from the geometric center of the antenna body. 11 . 11. The antenna according to any one of claims 1-10, wherein the lengths of the two first-type through-slots are greater than the lengths of the two second-type through-slots, and the first frequency band The resonance center frequency is lower than the resonance center frequency of the second frequency band. 12. The antenna according to claim 11, wherein the length of at least one of the two first-type through-slots is 3.53 mm, and the length of at least one of the two second-type through-slots is 2.53 mm . 13. The antenna according to any one of claims 1-10, wherein the antenna body is a circular plate-shaped body. 14. The antenna according to claim 13, wherein the radius of the antenna body is 4.5mm. 15. The antenna according to any one of claims 1-10, wherein the antenna body is a square plate. 16. The antenna according to claim 15, wherein the length or width of the antenna body is 4.5mm. 17. The antenna according to claim 2, characterized in that, the ends of the first through slot, the second through slot, the third through slot and the fourth through slot away from their respective openings are respectively communicated with an end part through slot , the extending direction of the end through groove is perpendicular to the extending direction of the first through groove, the second through groove, the third through groove and the fourth through groove correspondingly communicated with each other. 18. The antenna according to claim 17, characterized in that, the ends of the first through slot, the second through slot, the third through slot and the fourth through slot away from the respective openings and the corresponding end through slots The middle part communicates, and the first through groove, the second through groove, the third through groove and the fourth through groove form a T-shaped through groove together with the respective connected end part through grooves. 19. An electronic device, characterized in that the electronic device comprises the antenna according to any one of claims 1-18.