CN221978191U - Antenna and vehicle - Google Patents

Abstract

The application provides an antenna and a vehicle. The antenna comprises a substrate, a feed assembly and a radiation assembly; the feed assembly is positioned on one side of the substrate; the radiation assembly is positioned at the other side of the substrate and comprises a first annular radiation piece, a connecting piece and a second annular radiation piece, and the second annular radiation piece is positioned outside an outer ring of the first annular radiation piece and is arranged at intervals with the first annular radiation piece; the two ends of the connecting piece are respectively connected with the first annular radiating piece and the second annular radiating piece; the substrate is provided with a feed through hole, the feed through hole is positioned in the inner ring of the first annular radiating piece, and the wire of the antenna is respectively connected with the feed assembly and the first annular radiating piece through the feed through hole. The antenna provided by the application can solve the problem that the antenna is difficult to install in a narrow application space.

Description

Antenna and vehicle

Technical Field

The present application relates to the field of antenna technology, and in particular to an antenna and a vehicle.

Background Art

At present, the method of realizing dual-frequency radiation of antennas includes digging grooves on the radiation patch of the antenna or the antenna ground to generate two different current paths, thereby realizing dual-frequency radiation. However, digging grooves on the radiation patch of the antenna usually requires the antenna to have a larger size, which makes it difficult to install the antenna in a narrow application space.

Utility Model Content

The present application provides an antenna and a vehicle to improve the problem that the antenna is difficult to install in a narrow space.

In order to solve the above technical problems, a technical solution adopted in the present application is: to provide an antenna, which includes a substrate, a feeding component and a radiating component; the feeding component is located on one side of the substrate; the radiating component is located on the other side of the substrate, and the radiating component includes a first annular radiating element, a connecting member and a second annular radiating element, the second annular radiating element is located outside the outer ring of the first annular radiating element, and is spaced apart from the first annular radiating element; the two ends of the connecting member are respectively connected to the first annular radiating element and the second annular radiating element; wherein the substrate is provided with a feeding through hole, the feeding through hole is located in the inner ring of the first annular radiating element, and the antenna's wires are respectively connected to the feeding component and the first annular radiating element through the feeding through hole.

The feeding component includes a first microstrip line, a second microstrip line and a third microstrip line connected in sequence along a first direction, the first microstrip line is connected to the conductive wire, and a dimension of the first microstrip line in a vertical direction along the first direction is greater than a dimension of the second microstrip line in a vertical direction along the first direction, and is smaller than a dimension of the third microstrip line in a vertical direction along the first direction.

Wherein, the third microstrip line includes a fan-shaped microstrip line.

Wherein, the radiation area of the first annular radiation element is smaller than the radiation area of the second annular radiation element.

The inner ring of the second annular radiation element includes a first arc segment and a second arc segment which are connected, wherein a radial dimension of the first arc segment along the second annular radiation element is different from a radial dimension of the second arc segment.

The antenna further includes a coaxial wire, the inner conductor of the coaxial wire is connected to the feeding assembly, the outer conductor of the coaxial wire is connected to the inner ring of the first annular radiation element, and the coaxial wire is located on the other side of the substrate.

Among them, the feeding component, the radiation component and the substrate are integrally formed.

In order to solve the above technical problem, another technical solution adopted in the present application is: providing a vehicle, which includes the above antenna.

The beneficial effects of the present application are as follows: the antenna of the present application includes a substrate, a feeding assembly and a radiating assembly; the feeding assembly is located on one side of the substrate; the radiating assembly is located on the other side of the substrate, the radiating assembly includes a first annular radiator, a connecting member and a second annular radiator, the second annular radiator is located outside the outer ring of the first annular radiator, and is spaced apart from the first annular radiator; the two ends of the connecting member are respectively connected to the first annular radiator and the second annular radiator; wherein the substrate is provided with a feeding through hole, the feeding through hole is located in the inner ring of the first annular radiator, and the wire of the antenna is respectively connected to the feeding assembly and the first annular radiator through the feeding through hole. In the above manner, the first annular radiator, the second annular radiator and the connecting member of the radiating assembly can achieve dual-frequency performance and good impedance matching of the antenna, and at the same time, the nested design of the first annular radiator and the second annular radiator makes the antenna miniaturized, so that the antenna can be installed in a narrow application space, thereby improving the problem that the antenna is difficult to install in a narrow space.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

FIG1 is a schematic structural diagram of an antenna according to an embodiment of the present application;

FIG2 is a schematic structural diagram of an embodiment of a radiation component provided by the present application;

FIG3 is a schematic structural diagram of an embodiment of a feeding assembly provided by the present application;

FIG4 is a directional diagram of an antenna according to an embodiment of the present application;

FIG5 is a schematic structural diagram of an embodiment of a vehicle provided in the present application.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

Refer to Figure 1, which is a structural schematic diagram of an antenna embodiment provided in the present application. As shown in Figure 1, the antenna 10 includes a substrate 110, a feeding component 130 and a radiating component 120, wherein the feeding component 130 is located on one side of the substrate 110, and the radiating component 120 is located on the other side of the substrate 110.

Specifically, refer to FIG. 2, which is a schematic diagram of the structure of an embodiment of a radiation component provided by the present application. As shown in FIG. 2, the radiation component 120 includes a first annular radiation element 121, a connecting element 122, and a second annular radiation element 123. The first annular radiation element 121, the connecting element 122, and the second annular radiation element 123 are connected in sequence, that is, the second annular radiation element 123 is located outside the outer ring of the first annular radiation element 121, and is spaced apart from the first annular radiation element 121, and the two ends of the connecting element 122 are respectively connected to the first annular radiation element 121 and the second annular radiation element 123.

The substrate 110 is provided with a feeding through hole 111, which is disposed in the inner ring of the first annular radiator 121, and the wire 140 of the antenna 10 is connected to the feeding assembly 130 and the first annular radiator 121 through the feeding through hole 111. It can be understood that when the wire of the antenna 10 is connected to the first annular radiator 121, the wire can pass through the feeding through hole 111 and be connected to the feeding assembly 130 located on the other side of the substrate;

The radiation component 120 is an antenna ground. The feeding component 130 and the radiation component 120 can be arranged on both sides of the substrate 110 by printing technology. The radiation component 120, the feeding component 130 and the substrate 110 can be integrally formed.

Among them, the radiation component 120 can radiate signals of different frequency bands through the first annular radiation element 121 and the second annular radiation element 123, that is, the antenna 10 of the present application is a dual-frequency antenna.

The antenna 10 of the present application includes a substrate 110, a feeding component 130 and a radiation component 120; the feeding component 130 is located on one side of the substrate 110; the radiation component 120 is located on the other side of the substrate 110, and the radiation component 120 includes a first annular radiation element 121, a connecting member 122 and a second annular radiation element 123, the second annular radiation element 123 is located outside the outer ring of the first annular radiation element 121, and is spaced apart from the first annular radiation element 121; the two ends of the connecting member 122 are respectively connected to the first annular radiation element 121 and the second annular radiation element 123; wherein, the substrate 110 is provided with a feeding through hole 111, and the feeding through hole is located in the inner ring of the first annular radiation element 121, and the conducting wire of the antenna 10 is connected to the feeding component 130 and the first annular radiation element 121 through the feeding through hole 111. Through the above method, the first annular radiator 121, the second annular radiator 123 and the connecting member 122 of the radiating component 120 can achieve dual-frequency performance and good impedance matching of the antenna 10. At the same time, the nested design of the first annular radiator 121 and the second annular radiator 123 miniaturizes the antenna 10, so that the antenna 10 can be installed in a narrow application space, thereby improving the problem that the antenna 10 is difficult to install in a narrow space.

Optionally, the antenna 10 further includes a coaxial wire 140, the inner conductor of the coaxial wire 140 is connected to the feeding assembly 130, the outer conductor of the coaxial wire 140 is connected to the inner ring of the first annular radiator 121, and the coaxial wire 140 is located on the other side of the substrate 110. That is, the inner and outer conductors of the coaxial wire 140 are connected to the feeding assembly 130 and the radiating assembly 120 respectively through the feeding through hole 111.

Optionally, refer to FIG3, which is a schematic diagram of the structure of an embodiment of a feeding component provided by the present application. As shown in FIG3, the feeding component 130 includes a first microstrip line 131, a second microstrip line 132, and a third microstrip line 133, and the first microstrip line 131, the second microstrip line 132, and the third microstrip line 133 are sequentially connected along the first direction to form a T-type feeding structure, wherein the first microstrip line 131 is connected to the wire. Specifically, the first microstrip line 131 covers the feeding through hole 111 and is connected to the wire. The dimension of the first microstrip line 131 in the vertical direction along the first direction is greater than the dimension of the second microstrip line 132 in the vertical direction along the first direction, and is smaller than the dimension of the third microstrip line 133 in the vertical direction along the first direction.

It can be understood that the dimensions of the first microstrip line 131, the second microstrip line 132 and the third microstrip line 133 in the embodiment are different along the vertical direction of the first direction, and the first microstrip line 131 is connected to the feeding through hole 111, and the flow direction of the current in the microstrip line is parallel to the first direction. Since the dimensions of the microstrip line along the vertical direction of the first direction are different, the current carrying capacity of the microstrip line is different and the impedance of the microstrip line increases as the dimension along the vertical direction of the first direction decreases. When the impedance of the feeding component 130 is approximately the same as the impedance of the conductor 140, the current in the coaxial conductor 140 can be fed into the feeding component 130.

The feeding assembly 130 of this embodiment includes a first microstrip line 131, a second microstrip line 132, and a third microstrip line 133 connected in sequence along a first direction, the first microstrip line 131 is connected to the conductor, and the dimension of the first microstrip line 131 in the vertical direction along the first direction is greater than the dimension of the second microstrip line 132 in the vertical direction along the first direction, and is smaller than the dimension of the third microstrip line 133 in the vertical direction along the first direction. In the above manner, the dimension of the first microstrip line 131 in the vertical direction along the first direction is greater than the dimension of the second microstrip line 132 in the vertical direction along the first direction and is smaller than the dimension of the third microstrip line 133 in the vertical direction along the first direction, so that the impedance of the feeding assembly 130 matches the impedance of the conductor 140, so that the current in the coaxial conductor 140 can be fed into the feeding assembly 130. At the same time, the antenna 10 adopts a coupled feeding method, and couples energy to the radiation component 120 on the other side of the substrate 110 through a T-type feeding structure composed of the first microstrip line 131, the second microstrip line 132 and the third microstrip line 133, and controls the capacitive coupling between the two, thereby achieving good impedance matching of the antenna 10.

Specifically, the third microstrip line 133 includes a fan-shaped microstrip line.

Optionally, referring to Fig. 2, the radiation area of the first annular radiator 121 of this embodiment is smaller than the radiation area of the second annular radiator 123. It can be understood that if the radiation area of the first annular radiator 121 is smaller than the radiation area of the second annular radiator 123, the first annular radiator 121 and the second annular radiator 123 can radiate different signal frequency bands, and the signal frequency band radiated by the first annular radiator 121 is greater than the signal frequency band radiated by the second annular radiator 123.

Specifically, the second annular radiator 123 is mainly used to achieve low-frequency radiation, wherein the second annular radiator 123 of the present application can radiate a signal frequency range of 2.37GHz-2.6GHz, such as 2.37GHz, 2.45GHz, 2.5GHz, 2.6GHz, etc. The first annular radiator 121 can achieve high-frequency radiation, wherein the first annular radiator 121 of the present application can radiate a frequency range of 4.9GHz-5.9GHz, such as 4.9GHz, 5.2GHz, 5.5GHz, 5.9GHz, etc. The antenna 10 includes a dual-band WiFi antenna. Refer to Figure 4, which is a radiation pattern of an antenna embodiment provided by the present application, Figure 4(a) is the radiation pattern of the antenna 10 of the present application when Theta=90° at 2.45GHz; Figure 4(b) is the radiation pattern of the antenna 10 of the present application when Theta=90° at 5.20GHz; Figure 4(c) is the radiation pattern of the antenna 10 of the present application when Theta=90° at 5.50GHz; Figure 4(d) is the radiation pattern of the antenna 10 of the present application when Theta=90° at 5.80GHz.

Specifically, the inner ring of the second annular radiator 123 includes a first arc segment (not marked in the figure) and a second arc segment (not marked in the figure) connected, wherein the radial dimension of the first arc segment along the second annular radiator 123 is different from the radial dimension of the second arc segment. It can be understood that the groove processing is performed near the inner ring of the second annular radiator 123. The groove processing of the second annular radiator 123 can improve the problem that the radiation pattern deviates from the positive direction of the z-axis due to the asymmetry of the antenna structure, and realize the stable radiation capability of the antenna 10. At the same time, by controlling the size of the groove, the capacitive coupling between the feeding component 130 and the radiating component 120 can be flexibly controlled to achieve good impedance matching.

The present application also provides a vehicle. Refer to Figure 5, which is a structural schematic diagram of an embodiment of a vehicle provided by the present application. As shown in Figure 5, the vehicle 20 includes an antenna (not marked in the figure), wherein the antenna is any one of the antennas in the above-mentioned antenna embodiments.

In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims (9)

1. An antenna, comprising: Substrate; A feeding component, located on one side of the substrate; a radiation component, located on the other side of the substrate, the radiation component comprising a first annular radiation element, a connecting element and a second annular radiation element, the second annular radiation element being located outside the outer ring of the first annular radiation element and spaced apart from the first annular radiation element; two ends of the connecting element are respectively connected to the first annular radiation element and the second annular radiation element; The substrate is provided with a feeding through hole, the feeding through hole is located in the inner ring of the first annular radiator, and the wire of the antenna is connected to the feeding component and the first annular radiator respectively through the feeding through hole. 2. The antenna according to claim 1 is characterized in that the feeding component includes a first microstrip line, a second microstrip line and a third microstrip line connected in sequence along a first direction, the first microstrip line is connected to the conductive wire, and the dimension of the first microstrip line in a vertical direction along the first direction is larger than the dimension of the second microstrip line in a vertical direction along the first direction, and smaller than the dimension of the third microstrip line in a vertical direction along the first direction. 3 . The antenna according to claim 2 , wherein the third microstrip line comprises a fan-shaped microstrip line. 4. The antenna according to claim 1, characterized in that: A radiation area of the first annular radiation element is smaller than a radiation area of the second annular radiation element. 5. The antenna according to claim 4 is characterized in that the inner ring of the second annular radiator includes a first arc segment and a second arc segment connected to each other, wherein a radial dimension of the first arc segment along the second annular radiator is different from a radial dimension of the second arc segment along the radial direction. 6 . The antenna according to claim 1 , further comprising a coaxial wire, an inner conductor of the coaxial wire being connected to the feeding assembly, and an outer conductor of the coaxial wire being connected to an inner ring of the first annular radiator. 7 . The antenna according to claim 6 , wherein the coaxial conductor is located on the other side of the substrate. 8. The antenna according to claim 1, characterized in that: The feeding component, the radiation component and the substrate are integrally formed. 9. A vehicle, comprising: The antenna according to any one of claims 1 to 8.