CN220172368U - Antenna and electronic equipment - Google Patents

Abstract

The utility model provides an antenna and electronic equipment, wherein the antenna comprises a dielectric substrate and an antenna body, and the antenna body comprises an antenna radiator and a coupling branch; the antenna body is arranged in a form of a circle around the edge of the dielectric substrate; the antenna radiator comprises a high-frequency radiator and a low-frequency radiator, one end of the high-frequency radiator is positioned at the edge of the dielectric substrate, and the other end of the high-frequency radiator extends towards the center of a side plate surface of the dielectric substrate, which is provided with a feed point; at least part of the low-frequency radiator protrudes towards the center of the dielectric substrate; one end of the coupling branch is positioned at the edge of the medium substrate, and the other end extends towards the center of the medium substrate; the coupling branches are used for electric field coupling with the antenna radiator to excite resonance with a set frequency when the feed point feeds excitation. The utility model realizes the miniaturization design of the antenna, the structural forms of the antenna radiator and the coupling branches fully utilize the space, the integral structural size of the antenna is reduced, the design of the light and thin electronic equipment is further adapted, and the performance of the antenna is ensured.

Description

An antenna and electronic equipment

Technical field

The utility model relates to the field of antenna technology, and in particular to an antenna and electronic equipment.

Background technique

With the development of notebook computer communication technology, product design is more pursuing the appearance design of all-metal & thin and light chassis. As a result, the design space reserved for notebook computer WLAN antennas is shrinking, resulting in the deterioration of the working clearance environment of notebook computer WLAN antennas. , which in turn causes the antenna's throughput (T-PUT) and radiation efficiency performance to decrease.

The antenna of a traditional laptop computer generally adopts a PCB process antenna design with a length of 25mm, a width of 10mm, and a thickness of 0.8mm, which is large in size and high in cost.

Utility model content

The purpose of the embodiments of the present invention is to provide an antenna and an electronic device to solve the problem in the prior art that the performance of traditional antennas is reduced due to the thin and light design of the product.

Embodiments of the present utility model adopt the following technical solutions: an antenna, applied to electronic equipment, is characterized in that it includes a dielectric substrate and an antenna body, and the antenna body includes an antenna radiator and a coupling branch;

A feed point is provided on one side of the dielectric substrate;

The antenna body is disposed on one side of the dielectric substrate having the feed point. The antenna body is arranged in a structural form around the edge of the dielectric substrate and is disposed corresponding to the feed point. There is a gap;

The antenna radiator includes a high-frequency radiator and a low-frequency radiator. One end of the high-frequency radiator is located at the edge of the dielectric substrate, and the other end is toward the side of the dielectric substrate having the feed point. The center extends; at least part of the low-frequency radiator protrudes toward the center of the side plate of the dielectric substrate having the feed point;

One end of the coupling branch is located at the edge of the dielectric substrate, and the other end extends toward the center of the side plate of the dielectric substrate having the feed point; the coupling branch is used for electric field coupling with the antenna radiator , so as to excite the resonance of the set frequency when the excitation is fed into the feed point.

In some embodiments, the width of the high-frequency radiator is greater than the width of the low-frequency radiator, and the high-frequency radiator is coupled with the coupling branch electric field to excite when the feed point feeds excitation. Out the resonance of the first set frequency.

In some embodiments, the antenna body includes a first low-frequency radiator, a second low-frequency radiator, and a third low-frequency radiator;

The first low-frequency radiator is located between the high-frequency radiator and the coupling branch, and both ends of the first low-frequency radiator are connected to the high-frequency radiator and the coupling branch respectively;

The second low-frequency radiator is located between the coupling branch and the third low-frequency radiator. Both ends of the second low-frequency radiator are respectively connected to the coupling branch and one end of the third low-frequency radiator. ;

The other end of the third low-frequency radiator serves as the free end.

In some embodiments, the dielectric substrate is rectangular;

The high-frequency radiator and at least part of the first low-frequency radiator are arranged along the first side of the dielectric substrate;

The coupling branches are arranged along the second side of the dielectric substrate;

The second low-frequency radiator is arranged along the third side of the dielectric substrate, and at least part of the second low-frequency radiator is along a side surface of the dielectric substrate facing the dielectric substrate having the feed point. convex center;

The third low-frequency radiator is arranged along the fourth side of the dielectric substrate.

In some embodiments, there are multiple coupling branches, and the plurality of coupling branches are arranged at intervals along the second side of the dielectric substrate.

In some embodiments, the coupling branches have different lengths, and the coupling branches of different lengths are used for electric field coupling with the high-frequency radiator and the low-frequency radiator respectively.

In some embodiments, the antenna is configured to cover at least the working frequency bands of WIFI2.4G, WIFI5G and WIFI6E.

In some embodiments, the antenna is configured as a rectangular plate structure with a length of 5.5 mm to 5.8 mm, a width of 5.5 mm to 5.8 mm, and a thickness of 0.8 mm.

In some embodiments, the antenna further includes a grounded copper foil, one end of the grounded copper foil is connected to the dielectric substrate, and the other end of the grounded copper foil is connected to the ground.

The utility model also discloses an electronic device, which includes a display end and a system end. The housing of the display end has a clear area. The electronic device also includes a device as described in any one of the above embodiments and is disposed in the clear area. antenna.

The beneficial effects of the embodiments of the present utility model are:

The antenna body is designed to be arranged in a structural form around the edge of the dielectric substrate. The antenna radiator includes a high-frequency radiator and a low-frequency radiator. One end of the high-frequency radiator is located at the edge of the dielectric substrate, and the other end has a feed to the dielectric substrate. The point extends from the center of one side of the plate; at least part of the low-frequency radiator protrudes toward the center of the side of the dielectric substrate with the feed point; one end of the coupling branch is located at the edge of the dielectric substrate, and its other end is toward the dielectric substrate. The center of the plate on one side of the feed point extends; the coupling branches are used to couple with the electric field of the antenna radiator to excite resonance at a set frequency when the feed point is fed with excitation. The utility model realizes the miniaturization design of the antenna. The structural form of the antenna radiator and coupling branches makes full use of the space, reduces the overall structural size of the antenna, adapts to the design of thin and light electronic equipment, and ensures the performance of the antenna.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings needed to be used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings in the following description are only For some embodiments recorded in the present utility model, those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative labor.

Figure 1 is a schematic structural diagram of the antenna of the present invention.

Figure 2 is a return loss characteristic diagram of the antenna of the present utility model.

Figure 3 is a radiation efficiency diagram of the antenna of the present utility model.

Reference signs: 1 dielectric substrate, 2 coupling branches, 3 feed point, 4 high frequency radiator, 5 first low frequency radiator, 6 second low frequency radiator, 7 third low frequency radiator, 8 ground copper foil.

Detailed ways

Various aspects and features of the present invention are described here with reference to the accompanying drawings.

It will be understood that various modifications may be made to the embodiments claimed herein. Therefore, the above description should not be viewed as limiting, but merely as examples of embodiments. Other modifications within the scope and spirit of the invention will occur to those skilled in the art.

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the general description of the invention given above and the detailed description of the embodiments given below, serve to explain the invention. The principle of utility model.

These and other features of the invention will become apparent from the following description of preferred forms of embodiments given as non-limiting examples with reference to the accompanying drawings.

It should also be understood that, although the present invention has been described with reference to a few specific examples, those skilled in the art will be able to certainly implement many other equivalent forms of the invention which have the characteristics of the above "Utility Model Contents" and therefore all within the scope of protection thus defined.

The above and other aspects, features and advantages of the present invention will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings; however, it should be understood that the applied embodiments are merely examples of the present invention, which can be implemented in various ways. Well-known and/or repeated functions and structures have not been described in detail to avoid obscuring the invention in unnecessary or redundant detail. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but merely serve as the basis and representative basis for the above-mentioned "utility model content" to teach those skilled in the art to adopt substantially any suitable detailed structure. Use this utility model in various ways.

This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may refer to a method in accordance with the invention. One or more of the same or different embodiments.

In order to solve the problems in the background technology, the present utility model discloses an antenna, which is applied to electronic equipment.

As shown in FIG. 1 , the antenna includes a dielectric substrate 1 and an antenna body disposed on the dielectric substrate 1 , where the antenna body includes an antenna radiator and a coupling branch 2 .

A feed point 3 is provided on one side of the dielectric substrate 1. The dielectric substrate 1 can be a rectangular plate, and the feed point 3 can be arranged at one of the corners of the rectangular plate. Feeding point 3 serves as the connection point between the antenna body and the cable line, and is used for signal transmission between the antenna body and the cable line.

The antenna body is disposed on the side plate of the dielectric substrate 1 with the feed point 3 . The antenna body is arranged in a structural form around the edge of the dielectric substrate 1 to fully utilize the structural space of the dielectric substrate 1 . The antenna body is provided with a notch corresponding to the feed point 3, that is, one end of the antenna body can be arranged from the corner position of the rectangular dielectric substrate 1 where the feed point 3 is set, along the edges of each side of the dielectric substrate 1, to the edge of the antenna body. The other end is arranged to one end of the antenna body at a position corresponding to the feed point 3 on the dielectric substrate 1, but the two ends of the antenna body are not in contact and there is a gap between them.

The antenna radiator includes a high-frequency radiator 4 and a low-frequency radiator. The high-frequency radiator 4 corresponds to the high-frequency operating frequency band covering the electronic equipment, and the low-frequency radiator corresponds to the low-frequency operating frequency band covering the electronic equipment. Specifically, one end of the high-frequency radiator 4 is located at the edge of the dielectric substrate 1, and its other end extends toward the center of one side of the dielectric substrate 1 with the feed point 3; at least part of the low-frequency radiator has a feed point toward the dielectric substrate 1. 3 protrudes from the center of one side of the plate; to make full use of the space in the middle area of the dielectric substrate 1, realize the miniaturized design of the antenna, reduce the overall structural size of the antenna, and thus adapt to the design of thin and light electronic equipment, and at the same time have the ability to Ensure antenna performance.

One end of the coupling branch 2 is located at the edge of the dielectric substrate 1, and its other end extends to the center of the side plate of the dielectric substrate 1 with the feed point 3. Similarly, this design can make full use of the space in the middle area of the dielectric substrate 1 to achieve Miniaturized design of antenna. The coupling branch 2 is used to couple with the electric field of the antenna radiator to excite a resonance of a set frequency when the feed point 3 is fed with excitation; for example, the high-frequency radiator 4 radiates high-frequency resonance, and the low-frequency radiator radiates low-frequency resonance. resonance.

In the utility model, the antenna body is designed to be arranged in a structural form around the edge of the dielectric substrate 1. The antenna radiator includes a high-frequency radiator 4 and a low-frequency radiator. One end of the high-frequency radiator 4 is located at the edge of the dielectric substrate 1, and the other end of the high-frequency radiator 4 is located at the edge of the dielectric substrate 1. One end extends to the center of the side panel of the dielectric substrate 1 with the feed point 3; at least part of the low-frequency radiator protrudes toward the center of the side panel of the dielectric substrate 1 with the feed point 3; one end of the coupling branch 2 It is located at the edge of the dielectric substrate 1, and its other end extends to the center of the side plate of the dielectric substrate 1 with the feed point 3; the coupling branch 2 is used to couple with the electric field of the antenna radiator to excite when the feed point 3 feeds excitation. Resonance at the set frequency. The utility model realizes the miniaturization design of the antenna. The structural form of the antenna radiator and the coupling branch 2 makes full use of the space, reduces the overall structural size of the antenna, adapts to the design of thin and light electronic equipment, and ensures the performance of the antenna.

In some embodiments, the width of the high-frequency radiator 4 is greater than the width of the low-frequency radiator, and the high-frequency radiator 4 is electrically coupled with the coupling branch 2 to excite the first set frequency when the feed point 3 feeds the excitation. resonance. That is, in order to excite the resonance of the first set frequency when the feed point 3 is fed with excitation, the width of the high-frequency radiator 4 is designed to be larger than the width of the low-frequency radiator. The specific width can be determined according to the first set frequency. set up. The first set frequency here is greater than the resonance of the corresponding frequency excited by the low-frequency radiator when the feed excitation is fed into the feed point 3. For example, the first set frequency is 5.15GHZ~7.2GHZ. The first set frequency can be set according to the design requirements of the electronic device.

In some embodiments, the antenna body includes a first low-frequency radiator 5 , a second low-frequency radiator 6 and a third low-frequency radiator 7 . Use the long peripheral branch wiring as the WLAN low-frequency radiation unit (for example, the frequency is 2.4GHZ~2.5GHZ).

Among them, the first low-frequency radiator 5 is located between the high-frequency radiator 4 and the coupling branch 2. Both ends of the first low-frequency radiator 5 are connected to the high-frequency radiator 4 and the coupling branch 2 respectively. At least one half of the first low-frequency radiator 5 may be arranged along the first side of the rectangular dielectric substrate 1 , wherein the high-frequency radiator 4 is also arranged along the first side of the dielectric substrate 1 .

The second low-frequency radiator 6 is located between the coupling branch 2 and the third low-frequency radiator 7 . The coupling branch 2 is arranged along the second side of the dielectric substrate 1 . Both ends of the second low-frequency radiator 6 are connected to the coupling branch 2 and one end of the third low-frequency radiator 7 respectively. For the rectangular dielectric substrate 1, the second low-frequency radiator 6 is arranged along the third side of the dielectric substrate 1, and at least part of the second low-frequency radiator 6 protrudes toward the center of the side of the dielectric substrate 1 having the feed point 3. This ensures that it can excite low-frequency resonance when the feed point 3 is fed with excitation and at the same time make full use of the space in the middle part of the dielectric substrate 1 .

The third low-frequency radiator 7 is arranged along the fourth side of the rectangular dielectric substrate 1 . The other end of the third low-frequency radiator 7 serves as a free end, and the free end can extend toward the central area of the dielectric substrate 1 .

The antenna adopts the form of a monopole antenna, and clever bending can be used to achieve a miniaturized antenna design.

In some embodiments, the antenna is configured as a rectangular plate structure having a length of 5.5 mm to 5.8 mm, a width of 5.5 mm to 5.8 mm, and a thickness of 0.8 mm. That is, the dielectric substrate 1 can be a rectangular plate with a length of 5.5 mm to 5.8 mm and a width of 5.5 mm to 5.8 mm. The antenna body is disposed on one side of the rectangular plate, so that the thickness of the medium and the antenna body is basically 0.8mm. As a radiating unit, this antenna ensures a line length of 1/4 of the medium wavelength. Through the bending arrangement of the antenna body, the size of the antenna is effectively reduced, ensuring the normal radiation performance of the antenna, and is more suitable for the thin and light design of electronic equipment. requirements. In addition, compared with the traditional antenna structure with a length of 25mm, a width of 10mm, and a thickness of 0.8m, the structural size of the antenna is reduced by 80%, and the cost of the antenna plate is reduced by more than 70%. The antenna can use FR4 material, which is relatively cheap and has stable performance. The dielectric constant (relative permittivity) is 4.2 and the dielectric loss (dielectric loss tangent) is 0.02. This material is widely used in the design of laptop computer antennas and has good stability.

In some embodiments, there are multiple coupling branches 2 , and the plurality of coupling branches 2 are arranged at intervals along the second side of the dielectric substrate 1 . The lengths of the coupling branches 2 can be designed to be of different lengths. The coupling branches 2 of different lengths are used to couple the electric fields of the high-frequency radiator 4 and the low-frequency radiator respectively to enhance the electromagnetic oscillation of high frequency and low frequency, which is beneficial to the improvement of the working bandwidth. In some embodiments, the antenna is configured to cover at least the operating frequency bands of WIFI2.4G, WIFI5G and WIFI6E.

The antenna was simulated and verified using electromagnetic simulation software. The return loss characteristic results are shown in Figure 2, where the abscissa represents frequency (Frequency/GHz) and the ordinate represents return loss. As can be seen from Figure 2, the return loss (Return Loss) performance of the antenna satisfies the specification (SPEC) requirements of notebook computer WLAN. Further, Figure 3 shows the radiation efficiency of the antenna, the abscissa represents frequency (Frequency/GHz), and the ordinate represents radiation efficiency. As shown in Figure 3, the radiation efficiency of this antenna is better than -3.8dB in the working frequency band, which includes 2.4-2.5GHZ&5.15GHZ-7.2GHZ.

In some embodiments, the antenna further includes a grounded copper foil 8 , one end of the grounded copper foil 8 is connected to the dielectric substrate 1 , and the other end of the grounded copper foil 8 is connected to the ground. The grounded copper foil 8 and the feed point 3 provide electromagnetic fields for antenna radiation.

The utility model also discloses an electronic device, which includes a display end and a system end, wherein the housing of the display end has a clear area, and the electronic device further includes an antenna as described in any one of the above embodiments disposed in the clear area.

Multiple embodiments of the present utility model have been described in detail above, but the present utility model is not limited to these specific embodiments. Those skilled in the art can make various variations and modified embodiments based on the concept of the present utility model. Variations and modifications should fall within the scope of protection claimed by this utility model.

Claims (10)

1. An antenna applied to electronic equipment is characterized by comprising a dielectric substrate and an antenna body, wherein the antenna body comprises an antenna radiator and a coupling branch;

a feeding point is arranged on one side plate surface of the dielectric substrate;

the antenna body is arranged on a side plate surface of the dielectric substrate, which is provided with the feed point, the antenna body is arranged in a structure form of encircling the edge of the dielectric substrate, and a notch is arranged at the position corresponding to the feed point;

the antenna radiator comprises a high-frequency radiator and a low-frequency radiator, one end of the high-frequency radiator is positioned at the edge of the dielectric substrate, and the other end of the high-frequency radiator extends towards the center of a side plate surface of the dielectric substrate, which is provided with the feed point; at least part of the low-frequency radiator protrudes towards the center of a side plate surface of the dielectric substrate with the feed point;

one end of the coupling branch is positioned at the edge of the medium substrate, and the other end of the coupling branch extends to the center of a side plate surface of the medium substrate with the feed point; the coupling branch is used for electric field coupling with the antenna radiator so as to excite resonance with set frequency when the feed point feeds in excitation.

2. The antenna of claim 1, wherein the high frequency radiator has a width that is greater than a width of the low frequency radiator, and wherein the high frequency radiator is electric field coupled to the coupling branch to excite resonance at a first set frequency when the feed point is excited.

3. The antenna of claim 1, wherein the antenna body comprises a first low frequency radiator, a second low frequency radiator, and a third low frequency radiator;

the first low-frequency radiator is positioned between the high-frequency radiator and the coupling branch, and two ends of the first low-frequency radiator are respectively connected with the high-frequency radiator and the coupling branch;

the second low-frequency radiator is positioned between the coupling branch and the third low-frequency radiator, and two ends of the second low-frequency radiator are respectively connected with one ends of the coupling branch and the third low-frequency radiator;

the other end of the third low-frequency radiator is used as a free end.

4. The antenna of claim 3, wherein the dielectric substrate is rectangular;

the high frequency radiator and at least a portion of the first low frequency radiator are disposed along a first side of the dielectric substrate;

the coupling branches are arranged along the second edge of the medium substrate;

the second low-frequency radiator is arranged along the third side of the dielectric substrate, and at least part of the second low-frequency radiator protrudes along the center of a side surface of the dielectric substrate, which is provided with the feed point, of the dielectric substrate;

the third low frequency radiator is disposed along a fourth side of the dielectric substrate.

5. The antenna of claim 3, wherein there are a plurality of said coupling stubs, a plurality of said coupling stubs being disposed in spaced relation along a second side of said dielectric substrate.

6. The antenna of claim 5, wherein the coupling stubs are different in length, the coupling stubs of different lengths being for electric field coupling with the high frequency radiator and the low frequency radiator, respectively.

7. An antenna according to claim 3, wherein the antenna is configured to cover at least the operating frequency bands of WIFI2.4G, WIFI5G and WIFI 6E.

8. An antenna according to claim 3, wherein the antenna is configured as a rectangular plate structure having a length of 5.5 mm to 5.8 mm, a width of 5.5 mm to 5.8 mm, and a thickness of 0.8 mm.

9. The antenna of claim 3, further comprising a ground copper foil, one end of the ground copper foil being connected to the dielectric substrate, the other end of the ground copper foil being grounded.

10. An electronic device comprising a display end and a system end, the housing of the display end having a clear space, characterized in that the electronic device further comprises an antenna according to any of claims 1 to 9 arranged in the clear space.