CN219286662U - Antenna and communication equipment - Google Patents

Abstract

The application discloses an antenna and communication equipment, including feed subassembly and feed ground subassembly. The feed assembly comprises a first high-frequency branch, a second high-frequency branch and a feed point, wherein the first high-frequency branch and the second high-frequency branch are both connected to the feed point. The ground feeding assembly comprises a first low-frequency branch, a second low-frequency branch, a third low-frequency branch and a ground feeding point which are connected, wherein the first low-frequency branch, the second low-frequency branch and the third low-frequency branch are all electrically connected with the ground feeding point, and the first low-frequency branch, the second low-frequency branch and the third low-frequency branch jointly enclose a first space. The antenna low frequency is tuned through the three low frequency branches together, and the intermediate frequency and the high frequency are tuned through the two high frequency branches, so that the bandwidth of the antenna is expanded, and the signal intensity of the antenna is improved; and, enclose the high frequency branch through three low frequency branch to guarantee that antenna structure is compact, reduce the space that the antenna occupy.

Description

Antenna and communication equipment

[ field of technology ]

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

[ background Art ]

With the rapid development of the wireless communication industry, especially the research and development of the 5G project of mobile phones, the requirements on antennas are higher and higher. The household appliances, wearing equipment, children toys and the like used by people in daily life can be directly controlled by adopting communication equipment such as mobile phones and the like, so that a new communication module, such as an antenna, is needed to be added for controlling the equipment. However, to meet the miniaturization design requirements of communication devices such as mobile phones, the size of the antenna is generally not too large, and the ultra-low frequency (700 MHZ-900 MHZ) bandwidth of the antenna is narrow, so that the antenna performance is poor.

[ utility model ]

The embodiment of the application aims to provide an antenna and communication equipment so as to solve the problems of larger antenna size and narrower ultralow frequency bandwidth.

In order to solve the technical problems, the embodiment of the application adopts the following technical scheme:

the application provides an antenna, which comprises a feed component and a ground feed component. The feed assembly comprises a first high-frequency branch, a second high-frequency branch and a feed point, wherein the first high-frequency branch and the second high-frequency branch are both connected to the feed point. The ground feeding assembly comprises a first low-frequency branch, a second low-frequency branch, a third low-frequency branch and a ground feeding point which are connected, wherein the first low-frequency branch, the second low-frequency branch and the third low-frequency branch are all connected with the ground feeding point in an electric mode, a first space is enclosed by the first low-frequency branch, the second low-frequency branch and the third low-frequency branch together, and the ground feeding assembly is arranged in the first space.

In some embodiments, a first gap is provided between the first high frequency branch and the first low frequency branch, a second gap is provided between the second high frequency branch and the second low frequency branch, and a third gap is provided between the second high frequency branch and the third low frequency branch.

In some embodiments, the width of the first gap is L1 along the direction from the first high frequency branch to the first low frequency branch, satisfying 0.2 mm+.l1+.0.4 mm. And the width of the second gap is L2 along the direction from the second high-frequency branch to the second low-frequency branch, and the L2 is more than or equal to 0.2mm and less than or equal to 0.4mm. And the width of the third gap is L3 along the direction from the second high-frequency branch to the third low-frequency branch, and the L3 is more than or equal to 0.2mm and less than or equal to 0.5mm.

In some embodiments, the second low frequency branch is provided with a receiving groove, and the receiving groove is communicated with the first space. The first high-frequency branch comprises a first free end and a first connecting end which are connected, the first connecting end is arranged in the accommodating groove, and the first free end extends out of the accommodating groove. The second high-frequency branch comprises a second free end and a second connecting end which are connected, the second connecting end is partially arranged in the accommodating groove, the second connecting end is connected with the first connecting end in the accommodating groove, and the second free end extends out of the accommodating groove.

In some embodiments, the first low frequency branch and the second low frequency branch are each disposed along a first direction. The third low-frequency branch is arranged along the second direction; along the first direction, the second low frequency branch includes relative first tip and the second tip that sets up, first low frequency branch connect in the first tip of second low frequency branch, the third low frequency branch connect in the second tip of second low frequency branch. Wherein the first direction is perpendicular to the second direction.

In some embodiments, the first high-frequency branch and the second high-frequency branch are both disposed along a first direction, and the receiving groove is opened at the first end. The first free end of the first high-frequency branch and the second free end of the second high-frequency branch are both arranged close to the second end.

In some embodiments, the length of the second high frequency branch is greater than the length of the first high frequency branch in the first direction.

In some embodiments, the feed point is disposed at an end face of the first low frequency branch facing the first high frequency branch, and the feed point is disposed at an end face of the first high frequency branch facing the first low frequency branch.

In some embodiments, the first low frequency branch, the second low frequency branch, and the third low frequency branch are collectively tuned to a 700MHZ to 960MHZ frequency band. The first high frequency branch and the second high frequency branch are jointly tuned to a frequency band of 1710MHZ to 2690 MHZ.

In a second aspect, the present application further proposes a communication device, including an antenna according to any one of the embodiments of the first aspect.

The beneficial effect of this application antenna is different from prior art:

in the embodiment of the application, the antenna low frequency is tuned through three low frequency branches together, and the intermediate frequency and the high frequency are tuned through two high frequency branches, so that the bandwidth of the antenna is expanded, and the signal strength of the antenna is improved; and, the first space is enclosed jointly to three low frequency knots, and the high frequency knots set up in first space, enclose the high frequency knots through three low frequency knots to guarantee that antenna structure is compact, reduce the shared space of antenna.

The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.

[ description of the drawings ]

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to scale, unless expressly stated otherwise.

Fig. 1 is a schematic structural diagram of an antenna according to some embodiments of the present application;

fig. 2 is a schematic structural diagram of an antenna according to some embodiments of the present application;

FIG. 3 is a schematic structural view of a feed assembly according to some embodiments of the present application;

FIG. 4 is a schematic diagram of a ground feed assembly according to some embodiments of the present application;

fig. 5 is a data diagram of passive impedance characteristics S11 of an antenna according to some embodiments of the present application;

fig. 6 is a table of efficiency of antennas according to some embodiments of the present application;

fig. 7 is an efficiency intent of an antenna of some embodiments of the present application.

Reference numerals illustrate:

100. an antenna;

10. a feed assembly; 11. a first high frequency branch; 111. a first connection end; 112. a first free end; 12. a second high frequency stub; 121. a second connection end; 122. a second free end; 13. a feeding point;

20. a ground feed assembly; 21. a first low frequency stub; 22. a second low frequency stub; 221. a first end; 222. a second end; 223. a receiving groove; 23. third low frequency branches; 24. a feed point; 25. a first space;

x, a first direction; y, second direction.

[ detailed description ] of the utility model

Embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical solutions of the present application, and thus are only examples, and are not intended to limit the scope of protection of the present application.

In the description of the embodiments of the present application, the technical terms "first," "second," etc. are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not collide with each other.

In a first aspect, the present application proposes an antenna 100, referring to fig. 1, the antenna 100 includes a feeding assembly 10 and a ground feeding assembly 20.

For the above-mentioned power feeding assembly 10, referring to fig. 1 and 2, the power feeding assembly 10 includes a first high-frequency branch 11, a second high-frequency branch 12, and a power feeding point 13. The first high-frequency branch 11 and the second high-frequency branch 12 are both connected to the feeding point 13, for example, the feeding point 13 is disposed on the first high-frequency branch 11, and the second high-frequency branch 12 is connected to the first high-frequency branch 11 and then directly connected to the feeding point 13.

The first high frequency branch 11 and the second high frequency branch 12 are jointly tuned to the 1710MHZ to 2690MHZ frequency band. Along the first direction X, the length of the second high-frequency branch 12 is greater than the length of the first high-frequency branch 11, the length of the antenna 100 wiring is inversely proportional to the operating frequency of the antenna 100, and in the same medium, the propagation speed of the electromagnetic wave is constant, and the lower the operating frequency of the antenna 100, the longer the length of the antenna 100 is required. For example, in some embodiments, the second high frequency branch 12, which is larger in length, may be tuned to a frequency band of 1710MHZ to 2180MHZ (intermediate frequency); the first high frequency branch 11 of smaller length tunes the 2180MHZ to 2690MHZ (high frequency) band to meet intermediate frequency as well as high frequency tuning requirements.

With continued reference to fig. 3, the first high-frequency branch 11 is disposed along a first direction X, the first high-frequency branch 11 includes a first connection end 111 and a first free end 112 connected to each other, and the first connection end 111 and the first free end 112 are sequentially disposed along the first direction X. In the second direction Y, the width of the first connection end 111 is smaller than the width of the first free end 112 in order to tune the frequency band. Wherein the first direction X is perpendicular to the second direction Y.

Similar to the first high-frequency branch 11, the second high-frequency branch 12 is also arranged in the first direction X, wherein the second high-frequency branch 12 is arranged in sequence with the first high-frequency branch 11 in the second direction Y. The second high-frequency branch 12 includes a second connection end 121 and a second free end 122 connected, and the second connection end 121 and the second free end 122 are sequentially disposed along the first direction X. The second connecting end 121 is connected to the first connecting end 111, and the width of the second connecting end 121 is smaller than the width of the second free end 122.

For the above-mentioned ground feeding assembly 20, referring to fig. 1 and 2, the ground feeding assembly 20 includes a first low frequency branch 21, a second low frequency branch 22, and a ground feeding point 24 connected to each other. The first low frequency branch 21, the second low frequency branch 22 and the third low frequency branch 23 are all connected to a feed point 24. The first low-frequency branch 21, the second low-frequency branch 22 and the third low-frequency branch 23 are tuned together to 700-960 MHz (low frequency) frequency band so as to meet the ultra-low frequency tuning requirement, and the frequency of the antenna 100 can be simply and effectively tuned through the common tuning of the three connected low-frequency branches, the ultra-low frequency bandwidth is ensured, and the signal intensity of the antenna 100 is improved.

The first low-frequency branch 21 and the second low-frequency branch 22 are both arranged along the first direction X, the third low-frequency branch 23 is arranged along the second direction Y, and the first space 25 is enclosed by the first low-frequency branch 21, the second low-frequency branch 22 and the third low-frequency branch 23. For example, referring to fig. 4, the second low-frequency branch 22 includes a first end 221 and a second end 222 opposite to each other along the first direction X, the first low-frequency branch 21 is connected to the first end 221 of the second low-frequency branch 22, and the third low-frequency branch 23 is connected to the second end 222 of the second low-frequency branch 22, so that the three low-frequency branches are disposed around each other to form the first space 25.

The feeding assembly 10 is disposed in the first space 25, and the first high-frequency branch 11 is disposed near the first low-frequency branch 21, and the second high-frequency branch 12 is disposed near the second low-frequency branch 22. The first gap is formed between the first high-frequency branch 11 and the first low-frequency branch 21, in a specific application process, corresponding bandwidth and radiation performance can be adjusted by adjusting the size of each branch, the gap between each branch and the like, corresponding tuning is performed according to different requirements, for example, the width of the first gap is L1 along the direction from the first high-frequency branch 11 to the first low-frequency branch 21, L1 which is smaller than or equal to 0.2mm and smaller than or equal to 0.4mm is satisfied, the S parameter of the high frequency of the antenna 100 can be effectively adjusted by adjusting the first gap between the first high-frequency branch 11 and the first low-frequency branch 21, and the radiation efficiency of the antenna 100 can be effectively ensured in the range. A second gap is formed between the second high-frequency branch 12 and the second low-frequency branch 22, and the width of the second gap is L2 along the direction from the second high-frequency branch 12 to the second low-frequency branch 22, so that L2 is more than or equal to 0.2mm and less than or equal to 0.4mm. A third gap is formed between the second high-frequency branch 12 and the third low-frequency branch 23, and the width of the third gap is L3 along the direction from the second high-frequency branch 12 to the third low-frequency branch 23, so that L2 which is more than or equal to 0.2mm is more than or equal to 0.5mm; the gap between the second high-frequency branch 12 and the third low-frequency branch 23 is adjusted, so that the S parameters of low frequency and intermediate frequency can be effectively adjusted, the radiation efficiency of the antenna 100 is further improved, and meanwhile, gap spaces are formed between each high-frequency branch and each low-frequency branch, so that signal interference between each branch is reduced, and the performance of the antenna 100 is improved.

In some embodiments, referring to fig. 2 to 4, the second low-frequency branch 22 is provided with a receiving groove 223, and the receiving groove 223 is in communication with the first space 25. The first connection end 111 of the first high-frequency branch 11 is connected with the second connection end 121 of the second high-frequency branch 12 in the accommodating groove 223, and the first free end 112 of the first high-frequency branch 11 and the free end of the second high-frequency branch 12 extend out of the accommodating groove 223. The second low frequency stub 22 wraps portions of the first high frequency stub 11 and the second high frequency stub 12 to form a coupling region. Alternatively, the first high-frequency branch 11 and the second high-frequency branch 12 are both disposed along the first direction X, and the accommodating groove 223 is opened at the first end 221. The first free end 112 of the first high frequency branch 11 and the second free end 122 of the second high frequency branch 12 are both disposed proximate to the second end 222.

Referring to fig. 1, in some embodiments, the feeding point 24 is disposed on an end face of the first low-frequency branch 21 facing the first high-frequency branch 11, and the feeding point 13 is disposed on an end face of the first high-frequency branch 11 facing the first low-frequency branch 21. The feeding point 24 is disposed opposite to the feeding point 13, and the current of the feeding point 13 needs to be able to flow back to the feeding point 24 behind the coupling area, so as to improve the coupling efficiency of the antenna 100.

In other embodiments, the antenna 100 in the present application may take the form of Cable wire (Cable television Cable) plus FPC flexible board (flexible board), and may be effectively used in the internal space of different machines (such as mobile phone, charging pile, etc.) by using the characteristic that the FPC can be bent, so that the applicability is wide, and the frequency band required by the user can be effectively achieved; in addition, the FPC antenna 100 can be combined with the antenna 100 to form a pressing mold, and the mold does not need to be opened again, so that the cost can be effectively saved.

Referring to fig. 5, fig. 5 shows passive impedance characteristics S11 of the antenna 100 according to the embodiment of the present application, including Return Loss, smith Chart, VSWR, and the Return Loss of the antenna 100 in order from left to right, according to fig. 5, the actual tuning antenna 100 meets the design requirement of less than-5 dB. Meanwhile, fig. 6 and 7 are data graphs (taking a 4G antenna as an example) for verifying the efficiency uniformity of the antenna 100, and as can be seen from fig. 6 and 7, the data of three verifications are nearly uniform.

In the embodiment of the application, the antenna 100 is tuned at a low frequency through three low-frequency branches together, and the antenna 100 is tuned at an intermediate frequency and a high frequency through two high-frequency branches, so that the bandwidth of the antenna 100 is expanded, and the signal strength of the antenna 100 is improved; and, the first space 25 is enclosed jointly to three low frequency branches, and the high frequency branch sets up in first space 25, encloses the high frequency branch through three low frequency branches to guarantee antenna 100 compact structure, reduce the space that antenna 100 occupy. Meanwhile, the antenna 100 of the present application is simple in structure, convenient in assembly, and suitable for most electric appliances.

In a second aspect, the present application further proposes a communication device comprising an antenna 100 according to any of the embodiments of the first aspect.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; the technical features of the above embodiments or in the different embodiments may also be combined under the idea of the present application, the steps may be implemented in any order, and there are many other variations of the different aspects of the present application as described above, which are not provided in details for the sake of brevity; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. An antenna, comprising:

the power supply assembly comprises a first high-frequency branch, a second high-frequency branch and a power supply point, wherein the first high-frequency branch and the second high-frequency branch are both connected with the power supply point;

the ground feed assembly comprises a first low-frequency branch, a second low-frequency branch, a third low-frequency branch and a ground feed point which are connected, wherein the first low-frequency branch, the second low-frequency branch and the third low-frequency branch are all connected with the ground feed point in an electric mode, a first space is enclosed by the first low-frequency branch, the second low-frequency branch and the third low-frequency branch together, and the ground feed assembly is arranged in the first space.

2. The antenna of claim 1, wherein the antenna is configured to transmit the antenna signal,

a first gap is formed between the first high-frequency branch and the first low-frequency branch;

a second gap is formed between the second high-frequency branch and the second low-frequency branch;

and a third gap is formed between the second high-frequency branch and the third low-frequency branch.

3. The antenna of claim 2, wherein the antenna is configured to transmit the antenna signal,

the width of the first gap is L1 along the direction from the first high-frequency branch to the first low-frequency branch, and L1 is more than or equal to 0.2mm and less than or equal to 0.4mm;

the width of the second gap is L2 along the direction from the second high-frequency branch to the second low-frequency branch, and the L2 is more than or equal to 0.2mm and less than or equal to 0.4mm;

and the width of the third gap is L3 along the direction from the second high-frequency branch to the third low-frequency branch, and the L3 is more than or equal to 0.2mm and less than or equal to 0.5mm.

4. The antenna of claim 1, wherein the second low frequency branch defines a receiving slot, the receiving slot being in communication with the first space;

the first high-frequency branch comprises a first free end and a first connecting end which are connected, the first connecting end is partially arranged in the accommodating groove, and the first free end extends out of the accommodating groove;

the second high-frequency branch comprises a second free end and a second connecting end which are connected, the second connecting end is partially arranged in the accommodating groove, the second connecting end is connected with the first connecting end in the accommodating groove, and the second free end extends out of the accommodating groove.

5. The antenna of claim 4, wherein the antenna is configured to transmit the antenna signal,

the first low-frequency branch and the second low-frequency branch are both arranged along a first direction;

the third low-frequency branch is arranged along the second direction;

the second low-frequency branch comprises a first end and a second end which are oppositely arranged, the first low-frequency branch is connected with the first end of the second low-frequency branch, and the third low-frequency branch is connected with the second end of the second low-frequency branch;

wherein the first direction is perpendicular to the second direction.

6. The antenna of claim 5, wherein the first high frequency stub and the second high frequency stub are each disposed along a first direction, the receiving slot being open at the first end;

the first free end of the first high-frequency branch and the second free end of the second high-frequency branch are both arranged close to the second end.

7. The antenna of claim 5, wherein the length of the second high frequency branch is greater than the length of the first high frequency branch in the first direction.

8. The antenna of claim 1, wherein the feed point is disposed at an end face of the first low frequency branch facing the first high frequency branch, and the feed point is disposed at an end face of the first high frequency branch facing the first low frequency branch.

9. The antenna of claim 1, wherein the first low frequency branch, the second low frequency branch, and the third low frequency branch are collectively tuned to a 700MHZ to 960MHZ frequency band;

the first high frequency branch and the second high frequency branch are jointly tuned to a frequency band of 1710MHZ to 2690 MHZ.

10. A communication device comprising an antenna according to any of claims 1 to 9.

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