Antenna and vehicle

Abstract

The utility model provides an antenna and a vehicle, relates to the technical field of antennas, and is used for solving the problem that a radiator of an existing antenna is large in size and needs to occupy a large space. The antenna comprises a radiation sheet, and the radiation sheet is provided with a straight line edge and a gap edge. The straight edge has a first end and a second end. One end of the gap edge is connected with the first end, the gap edge extends from the end connected with the first end to the other end in the direction from the first end to the second end, and a gap is formed between the gap edge and the linear edge. The antenna is used for receiving and transmitting signals.

Description

Technical Field

[0001] This application relates to the field of antenna technology, and particularly to antennas and vehicles. Background Art

[0002] With the continuous progress of science and technology, the automotive industry has also made significant progress, and the intelligence level of automobiles is getting higher and higher. At the same time, with the development of the Internet of Things, information transmission between automobiles and various terminal devices needs to be carried out through antennas, and antennas are used for information exchange.

[0003] An antenna generally includes a radiator, and a gap is provided on the radiator to control the radiation effect of the antenna. However, the size of the gap on the radiator of the existing antenna is relatively large, resulting in a relatively large size of the radiator and requiring a relatively large space to be occupied. Summary of the Utility Model

[0004] Embodiments of this application provide an antenna and a vehicle, which are used to solve the problem that the size of the radiator of the existing antenna is relatively large and requires a relatively large space to be occupied.

[0005] To achieve the above object, this application adopts the following technical solutions:

[0006] On the one hand, embodiments of this application provide an antenna, including a radiation patch, and the radiation patch has a straight edge and a gap edge. The straight edge has a first end and a second end. One end of the gap edge is connected to the first end, and along the direction from the first end to the second end, the gap edge extends from the end connected to the first end to the other end, and there is a gap between the gap edge and the straight edge.

[0007] For the antenna provided by the embodiments of this application, the gap between the straight edge and the gap edge can form the gap of the radiation patch. At the same time, since along the direction from the first end to the second end, the gap edge extends from the end connected to the first end to the other end, according to the mirror principle of the antenna, taking the straight edge of the radiation patch as the symmetry axis, the area on the side of the straight edge far from the gap edge can be equivalent to the gap of the straight edge and the gap edge. In this way, for the antenna provided by the embodiments of this application, the radiation patch can be provided with a gap of a relatively small size, which is equivalent to a gap of a relatively large size through the mirror principle of the antenna, and further the overall volume of the radiation patch can be reduced, realizing the miniaturization of the antenna.

[0008] In some embodiments, the gap edge includes an arc edge and a curved edge. The arc edge has a third end and a fourth end. The first end and the third end are connected, and along the direction from the first end to the second end, the arc edge extends from the third end to the fourth end, and there is a distance between the fourth end and the straight edge, and the straight edge passes through the center of the arc of the arc edge. The curved edge has a fifth end and a sixth end. The fifth end and the fourth end are connected, and along the direction from the first end to the second end, the curved edge extends from the fifth end to the sixth end. Along the fifth end to the sixth end, the perpendicular distance between the curved edge and the straight edge gradually increases.

[0009] In some embodiments, the radiation sheet further has a connecting edge. The connecting edge has a seventh end and an eighth end. The seventh end is connected to the sixth end, and the eighth end is connected to the second end. The connecting edge extends from the seventh end in sequence around the outer periphery of the arc edge, the circular arc edge, and the straight edge to the eighth end.

[0010] In some embodiments, the connecting edge includes a first connecting edge, a second connecting edge, a third connecting edge, and a fourth connecting edge. One end of the first connecting edge is the seventh end, and the first connecting edge is parallel to the straight edge.

[0011] One end of the second connecting edge is connected to the other end of the first connecting edge and is perpendicular to the first connecting edge.

[0012] One end of the third connecting edge is connected to the other end of the second connecting edge and is perpendicular to the second connecting edge. One end of the fourth connecting edge is connected to the other end of the third connecting edge, and the other end is the eighth end, and the fourth connecting edge is perpendicular to the third connecting edge.

[0013] In some embodiments, the length of the first connecting edge is 42 mm to 45 mm.

[0014] In some embodiments, the perpendicular distance between the seventh end and the straight edge is 29 mm to 31 mm.

[0015] In some embodiments, the antenna further includes a feeder line. The feeder line is disposed on one side of the radiation sheet. Among them, the feeder line includes a first feeding sheet. The first feeding sheet is fan-shaped.

[0016] In some embodiments, the feeder line further includes a plurality of second feeding sheets. The ends of the plurality of second feeding sheets are connected in sequence. The sizes of the plurality of second feeding sheets gradually decrease along the dimension perpendicular to the extending direction of the second feeding sheet. The first feeding sheet is connected to one end of the second feeding sheet with the smallest dimension along the dimension perpendicular to the extending direction of the second feeding sheet and away from the remaining second feeding sheets.

[0017] In some embodiments, the plurality of second feeding sheets form a first feeding section and a second feeding section that are connected to each other. The first feeding section and the second feeding section are perpendicular to each other, and the first feeding sheet is connected to one end of the first feeding section away from the second feeding section.

[0018] In some embodiments, the center line of the first feeding sheet is parallel to the length direction of the first feeding section. The first feeding sheet has two side edges and an arc. One ends of the two side edges are respectively connected to one end of the first feeding section away from the second feeding section, and the other ends are respectively connected to the two ends of the arc.

[0019] In some embodiments, along the length direction of the first feeding section, the distance between one end of the side away from the first feeding section and the side of the second feeding section away from the first feeding section is 26 mm to 28 mm. Along the length direction of the second feeding section, the length of the feeding wire is 20 mm to 22 mm.

[0020] In some embodiments, the antenna further includes a connector. The connector is connected to one end of the plurality of second feeding pieces away from the first feeding piece.

[0021] In some embodiments, the antenna further includes an auxiliary antenna. The auxiliary antenna includes an auxiliary radiator, and the auxiliary radiator is disposed on the radiation sheet and on the side of the straight edge away from the arc edge.

[0022] In some embodiments, the auxiliary antenna further includes an auxiliary ground plane. The auxiliary ground plane is disposed on the side of the radiation sheet away from the auxiliary radiator.

[0023] In some embodiments, the auxiliary antenna includes at least one of a global navigation satellite system antenna and a V2X antenna.

[0024] In some embodiments, the antenna further includes a substrate. The radiation sheet is disposed on the substrate.

[0025] In some embodiments, the antenna further includes a feeding wire. The feeding wire is disposed on the substrate and on the side of the substrate away from the radiation sheet.

[0026] In some embodiments, the substrate is made of FR-4 material.

[0027] On the other hand, an embodiment of the present application provides a vehicle, including any one of the antennas in the above aspect.

[0028] Since the vehicle provided by the embodiment of the present application includes any one of the above antennas, it can solve the same technical problems as the above antennas and achieve the same technical effects, which will not be elaborated here. Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0030] Figure 1 It is a schematic structural diagram of a Vivaldi antenna in the related art;

[0031] Figure 2 It is a schematic overall structure diagram of a vehicle provided by an embodiment of the present application;

[0032] Figure 3 Schematic structural diagram of an antenna provided by an embodiment of the present application;

[0033] Figure 4 is Figure 3 Schematic structural diagram of the antenna shown on the other side;

[0034] Figure 5 Curve graph of the echo loss of the antenna measured based on the above data at each frequency;

[0035] Figure 6 is Figure 3 Schematic structural diagram of the antenna shown on the side;

[0036] Figure 7 Schematic structural diagram of another antenna provided by an embodiment of the present application;

[0037] Figure 8 is Figure 7 Schematic structural diagram of the antenna shown on the other side;

[0038] Figure 9 is Figure 7 Schematic structural diagram of the antenna shown on the side.

[0039] Reference numerals:

[0040] 010 - Vivaldi antenna; 011 - substrate; 012 - radiator; 100 - vehicle; 10 - vehicle body; 101 - passenger compartment; 20 - antenna; 21 - radiator; 211 - straight edge; 212 - arc edge; 213 - curved edge; 214 - connecting edge; 2141 - first connecting edge; 2142 - second connecting edge; 2143 - third connecting edge; 2144 - fourth connecting edge; 215 - slit edge; 22 - substrate; 23 - feeder; 231 - first feeding piece; 2311 - side edge; 2312 - arc; 232 - second feeding piece; 24 - connector; 25 - auxiliary antenna; 251 - auxiliary radiator; 252 - auxiliary floor. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0042] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. is based on the orientation or relative positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. Without special instructions, under the condition of satisfying the relative positional relationship shown in the drawings, the above-mentioned directional descriptions can be flexibly set during the actual application process.

[0043] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0044] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", and "communicated with" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. It may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0045] In the embodiments of the present utility model, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, article or device including that element.

[0046] In the embodiments of the present utility model, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present utility model should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0047] The limitations such as mirror symmetry, parallelism, perpendicularity, equality, and sameness (e.g., the same length, the same width, etc.) mentioned in the embodiments of the present application are all in view of the current technological level, rather than the absolutely strict definitions in the mathematical sense.

[0048] With the continuous development of 5G technology, various devices (such as automobiles or communication terminal devices, etc.) need to widely apply 5G technology. Among them, the requirements for antennas in 5G communication are also getting higher and higher. An antenna generally includes a radiator, and slits are generally provided on the radiator to control the radiation effect of the antenna. However, if the size of the slits on the radiator is large, it will cause the overall size of the radiator to be large, and a large space needs to be occupied.

[0049] Exemplarily, the Vivaldi antenna is an antenna that can efficiently transmit or receive ultra-wideband electromagnetic waves and is widely used in fields such as communication or radar measurement.

[0050] As Figure 1 shown, Figure 1 FIG. 13 is a schematic structural diagram of a Vivaldi antenna 010 in the related art. The Vivaldi antenna mainly includes a substrate 011 and a radiator 012 provided on the substrate. Among them, the radiator 012 is provided with an arc-shaped slit as shown in FIG. 1, and the shape of the arc-shaped slit can determine the radiation performance of the antenna 010.

[0051] However, as Figure 1 shown, the shape of the arc-shaped slit is large. To achieve a working frequency of about 700 MHz, a relatively large size of the radiator 012 is required, which needs to occupy a large space and cannot realize the miniaturized application of the antenna 010. Or, the substrate needs to have a relatively high relative dielectric constant, and the cost of the substrate with a high dielectric constant is relatively large.

[0052] Based on this, the embodiments of the present application provide a vehicle, and the type of the vehicle is not specifically limited. Exemplarily, the vehicle can be a new energy vehicle or a fuel vehicle.

[0053] As Figure 2 shown, Figure 2 FIG. 28 is a schematic overall structure diagram of a vehicle 100 provided by the embodiments of the present application. The vehicle 100 may include a vehicle body 10, and an occupant compartment 101 may be formed inside the vehicle body 10. The occupant compartment 101 can provide a seating space for users, and the driver and passengers can sit in the occupant compartment 101.

[0054] In order to improve the intelligence and interconnection communication ability of the vehicle, the vehicle provided by the embodiments of the present application may further include an antenna. Among them, the antenna can be used to realize the communication interconnection between the vehicle and external devices (such as terminal devices), and the antenna can realize the communication interconnection by receiving and transmitting signals.

[0055] As shown Figure 3 in Figure 3 Fig. 1, this is a schematic structural diagram of an antenna 20 provided by an embodiment of the present application. The antenna 20 may include a radiation patch 21. Among them, the radiation patch 21 can transmit or receive electromagnetic waves to realize signal transmission and reception of the antenna 20.

[0056] Continuing to refer to Figure 3 Fig. 1, the radiation patch 21 may have a straight edge 211 and a slotted edge 215. Among them, the straight edge 211 has a first end (i.e., Figure 3 the lower end of the straight edge 211 in Figure 3 Fig. 1) and a second end (i.e.,

[0057] the upper end of the straight edge 211 in

[0058] One end of the slotted edge 215 is connected to the first end. Along the direction from the first end to the second end, the slotted edge extends from the end connected to the first end to the other end and has a gap with the straight edge.

[0059] Thus, for the antenna provided by the embodiment of the present application, the gap between the straight edge 211 and the slotted edge 215 can form a slot of the radiation patch 21. At the same time, since along the direction from the first end to the second end, the slotted edge extends from the end connected to the first end to the other end, according to the mirror principle of the antenna 20, with the straight edge 211 of the radiation patch 21 as the symmetry axis, the region on the side of the straight edge 211 far from the slotted edge 215 can be equivalent to the slot of the straight edge 211 and the slotted edge 215. In this way, for the antenna 20 provided by the embodiment of the present application, the radiation patch 21 can be provided with a slot of a smaller size, which is equivalent to a slot of a larger size through the mirror principle of the antenna 20, and thus the overall volume of the radiation patch 21 can be reduced to realize miniaturization of the antenna. Figure 3 Figure 3

[0060]

[0060] In some embodiments, the slotted edge 215 may include an arc edge 212 and an arcuate edge 213. The arc edge 212 has a third end (i.e., Figure 3 the lower end of the arc edge 212 in Figure 3The left end of the middle arc edge 213). The fifth end is connected to the fourth end. Along the direction from the first end to the second end, the arc edge 213 extends from the fifth end to the sixth end, and there is a gap between the sixth end and the second end. Along the fifth end to the sixth end, the vertical distance between the arc edge 213 and the straight edge gradually increases.

[0061] Thus, as Figure 3 shown, for the antenna 20 provided in the embodiment of the present application, the straight edge 211, the arc edge 212, and the arc edge 213 of the radiation patch 21 can form half of the slot in a conventional Vivaldi antenna 20. At the same time, taking the straight edge 211 of the radiation patch 21 as the axis of symmetry, according to the mirror principle of the antenna 20, the other half of the slot in the Vivaldi antenna 20 can be replaced by the radiation patch 21 itself. In this way, for the antenna 20 provided in the embodiment of the present application, since the radiation patch 21 can only form half of the slot in a conventional Vivaldi antenna 20, the occupied space of the slot in the Vivaldi antenna 20 can be reduced, thereby reducing the size and volume of the overall radiation patch 21 and realizing the miniaturization of the antenna 20.

[0062] In addition, for the antenna 20 provided in the embodiment of the present application, since the radiation patch 21 can only form half of the slot of the radiation patch 21 in a conventional Vivaldi antenna 20, the size of the slot can be reduced, and thus the overall area of the radiation patch 21 can be relatively increased, increasing the radiation area and improving the radiation effect.

[0063] Of course, the slot formed by the straight edge 211 and the slot edge 215 may not be the slot of a Vivaldi antenna, as long as the radiation effect of the antenna 20 can be achieved. For example, in some other embodiments, the slot edge 215 may also have other shapes. Exemplarily, the slot edge 215 may also be an inclined straight edge.

[0064] In some embodiments, as Figure 3 shown, the radiation patch 21 further has a connecting edge 214. The connecting edge 214 has a seventh end (i.e., Figure 3 the left end of the connecting edge 214 in Figure 3 ), and an eighth end (i.e.,

[0065] the right end of the connecting edge 214 in Figure 3 ). The seventh end is connected to the sixth end, and the eighth end is connected to the second end. The connecting edge 214 extends from the seventh end around the periphery of the arc edge 213, the arc edge 212, and the straight edge 211 in sequence to the eighth end. Figure 3As shown, the straight edge 211, the arc edge 212, and the curved edge 213 can form half of the slot in the conventional Vivaldi antenna 20, and the effect of the Vivaldi antenna 20 can be achieved through the mirror principle.

[0066] In some embodiments, the connecting edge 214 includes a first connecting edge 2141, a second connecting edge 2142, a third connecting edge 2143, and a fourth connecting edge 2144. One end of the first connecting edge 2141 is the seventh end, and the first connecting edge 2141 is parallel to the straight edge 211. One end of the second connecting edge 2142 is connected to the other end of the first connecting edge 2141 and is perpendicular to the first connecting edge 2141. One end of the third connecting edge 2143 is connected to the other end of the second connecting edge 2142 and is perpendicular to the second connecting edge 2142. One end of the fourth connecting edge 2144 is connected to the other end of the third connecting edge 2143, and the other end is the eighth end, and the fourth connecting edge 2144 is perpendicular to the third connecting edge 2143.

[0067] Thus, as Figure 3 shown, the connecting edge 214 of the radiation patch 21 is composed of multiple straight edges, forming a relatively regular shape. In this way, during the processing and production of the radiation patch 21, the radiation patch 21 can be processed more simply and conveniently, and the processing and production of the radiation patch 21 are easier and more convenient.

[0068] Of course, in some other embodiments, the shape of the radiation patch 21 can also be other shapes, which can be specifically designed according to the actual situation. Exemplarily, the connecting edge 214 of the radiation patch 21 can also be a curved edge.

[0069] In some embodiments, the length of the first connecting edge 2141 can be 42 mm to 45 mm. Exemplarily, the length of the first connecting edge 2141 can be 42 mm, 43 mm, 44 mm, or 45 mm.

[0070] In some embodiments, the perpendicular distance L between the seventh end and the straight edge 211 can be 29 mm to 31 mm. Exemplarily, the perpendicular distance between the seventh end and the straight edge 211 can be 29 mm, 30 mm, or 31 mm.

[0071] In some embodiments, the length of the third straight edge 211 can be 70 mm to 90 mm. Exemplarily, the length of the third straight edge 211 can be 70 mm, 80 mm, or 90 mm.

[0072] In some embodiments, the length of the fourth straight edge 211 can be 70 mm to 90 mm. Exemplarily, the length of the fourth straight edge 211 can be 70 mm, 80 mm, or 90 mm.

[0073] Exemplarily, based onFigure 3 In the solution shown, the length of the first connecting edge 2141 can be selected as 43.5 mm. The perpendicular distance L1 between the seventh end and the straight edge 211 can be selected as 30 mm. Meanwhile, the length of the third straight edge 211 can be selected as 81 mm, and the length of the fourth straight edge 211 can be selected as 82.8 mm.

[0074] In some embodiments, as Figure 3 shown, the antenna 20 further includes a substrate 22. The radiation patch 21 is disposed on the substrate 22. In this way, the substrate 22 can provide an installation position for the radiation patch 21, and the radiation patch 21 can be fixed by being disposed on the substrate 22, which is more convenient for fixing. Of course, in some other embodiments, the antenna 20 may not include the substrate 22, and can be specifically selected according to the actual situation.

[0075] In some embodiments, the substrate 22 can be made of FR-4 material. The FR-4 material has the advantages of low cost and simple production, can save the production cost of the antenna 20, and improve the production efficiency of the antenna 20. Of course, the substrate 22 can also be made of other materials, and can be specifically selected according to the actual situation. Exemplarily, the substrate 22 can also be made of materials such as polytetrafluoroethylene.

[0076] In some embodiments, the relative dielectric constant of the substrate 22 can be 4.4. At this time, the dielectric constant of the substrate 22 is relatively appropriate, and has a good effect on the resonant frequency and bandwidth of the antenna 20. Of course, the relative nodal constant of the substrate 22 can also be other values, and can be specifically designed according to the actual situation.

[0077] In some embodiments, the tangent value of the dielectric loss angle of the substrate 22 can be 0.002. At this time, when the signal passes through the substrate 22, less energy loss can be ensured, and the attenuation of the signal can be reduced.

[0078] In some embodiments, as Figure 4 shown, Figure 4 is Figure 3 a schematic structural diagram of the antenna 20 on the other side. The antenna 20 may further include a feeder line 23. The feeder line 23 is disposed on one side of the radiation patch 21. Exemplarily, as Figure 4 shown, the feeder line 23 can be disposed on the substrate 22, on the side of the substrate 22 away from the radiation patch 21 ( Figure 3 ). Of course, when the antenna 20 does not include the substrate 22, the feeder line 23 can also be directly disposed on one side of the radiation patch 21.

[0079] The feeder line 23 can be used to transmit electrical signal energy to complete the signal transmission of the antenna 20. Exemplarily, after the radiation patch 21 of the antenna 20 receives an electromagnetic wave, it is propagated to the receiving end in the form of an electrical signal through the feeder line 23. Conversely, the electrical signal emitted by the receiving end is also propagated to the radiation patch 21 through the feeder line 23 and is radiated in the form of an electromagnetic wave by the radiation patch 21.

[0080] As Figure 4 shown, the feeder line 23 may include a first feeding patch 231 and a plurality of second feeding patches 232. Among them, the first feeding patch 231 is fan-shaped. The first feeding patch 231 can be a feeding open end. By setting it as fan-shaped, the feeding efficiency can be improved. Exemplarily, the whole of the first feeding patch 231 can be a quarter-wavelength fan-shaped structure.

[0081] The plurality of second feeding patches 232 are connected in sequence, and one end of the plurality of second feeding patches 232 is connected to the above-mentioned first feeding patch. By setting the plurality of second feeding patches 232, the connection position of the feeder line 23 can be adjusted, facilitating the connection of the feeder line 32.

[0082] In some embodiments, the sizes of the plurality of second feeding patches 232 gradually decrease along the dimension perpendicular to the extending direction of the second feeding patch 232. The first feeding patch 231 is connected to one end of the second feeding patch 232 with the smallest width away from the remaining second feeding patches 232.

[0083] In this way, as Figure 4 shown, since the sizes of the plurality of second feeding patches 232 gradually decrease along the dimension perpendicular to the extending direction of the second feeding patch 232, from the end of the second feeding patch 232 away from the first feeding patch 231 to the first feeding patch 231, the characteristic impedance of the second feeding patch 232 is gradually reduced and transitioned in a stepped manner. Exemplarily, the characteristic impedance at one end of the second feeding patch 232 close to the first feeding patch 231 can be transitioned to 50 ohms, which can effectively improve the low-frequency characteristics of the antenna 20.

[0084] Exemplarily, the feeding point of the feeder line 23 can be set on the short-circuit end of the feeder line, that is, the feeding point can be located at the end of the second feeding patch 232 away from the first feeding patch 231.

[0085] In some embodiments, as Figure 4 shown, the plurality of second feeding patches 232 can form a first feeding section and a second feeding section that are connected to each other. The first feeding section and the second feeding section are perpendicular to each other, and the first feeding patch 231 is connected to one end of the first feeding section away from the second feeding section. Among them, it can be understood that the above-mentioned first feeding section and second feeding section are both a feeding section composed of one or more second feeding patches 232.

[0086] In this way, since the first feeding segments and the second feeding segments of the multiple second feeding pieces 232 are perpendicular to each other, the overall length of the multiple second feeding pieces 232 in the first feeding segment and the second feeding segment can be relatively short, thereby reducing the size occupation of the second feeding pieces 232 in a single direction.

[0087] Exemplarily, as Figure 4 shown, the number of the second feeding pieces 232 can be four. One of the second feeding pieces 232 has an L-shaped rectangular structure, and the remaining second feeding pieces 232 are long rectangular structures. Among them, the sizes of the multiple second feeding pieces 232 gradually decrease along the width direction.

[0088] Of course, in some other embodiments, the multiple second feeding pieces 232 may only include the first feeding segments. At this time, the extending directions of the multiple second feeding pieces 232 are the same, and they are arranged and connected in sequence along a single direction.

[0089] In some embodiments, as Figure 4 shown, the center line of the first feeding piece 231 is parallel to the length direction of the first feeding segment. The first feeding piece 231 has two side edges 2311 and an arc 2312. One ends of the two side edges 2311 are respectively connected to the end of the first feeding segment far from the second feeding segment, and the other ends are respectively connected to the two ends of the arc 2312.

[0090] In some embodiments, along the length direction of the first feeding segment, the distance L2 between the end of the side edge 2311 far from the first feeding segment and the side of the second feeding segment far from the first feeding segment can be 26 mm to 28 mm. Exemplarily, L2 can be 26 mm, 27 mm or 28 mm. Along the length direction of the second feeding segment, the length L3 of the feeding wire 23 is 20 mm to 22 mm. Exemplarily, L3 can be 20 mm, 21 mm or 22 mm.

[0091] Based on Figure 4 the shown scheme, as an example, L2 can be selected as 27.1 mm, and the length of L3 can be selected as 21.4 mm. At this time, combined with Figure 3 , the length of the first connecting edge 2141 can be selected as 43.5 mm. The perpendicular distance L1 between the seventh end and the straight edge 211 can be selected as 30 mm. At the same time, the length of the third straight edge 211 can be selected as 81 mm, and the length of the fourth straight edge 211 can be selected as 82.8 mm.

[0092] Based on the above data, referring to Figure 5 , Figure 5 is a curve graph of the echo loss of the antenna 20 measured based on the above data at each frequency. It can be seen from this that the antenna 20 provided by the embodiment of the present application covers the frequency range from 680 MHz to 5.77 GHz, and the echo loss is below -6 dB.

[0093] In some embodiments, as Figure 4 shown, the antenna 20 provided by the embodiment of the present application may further include a connector 24. The connector 24 is connected to one end of a plurality of second feeding pieces 232 away from the first feeding piece 231. The connector 24 may connect the feeding line 23 and the radiation piece 21.

[0094] Among them, the specific structure of the connector 24 may be designed according to the actual situation and will not be further limited here. Exemplarily, as Figure 4 shown, one end of a plurality of second feeding pieces 232 away from the first feeding piece 231 may extend to one side edge of the substrate 22. In this way, the connector 24 may be directly disposed at the side edge of the substrate 22, facilitating the connection of the connector 24 with the substrate 22 and the radiation piece 21 ( Figure 3 ). Exemplarily, as Figure 6 shown, Figure 6 is Figure 3 a schematic side structure diagram of the antenna 20 shown, and a part of the connector 24 is respectively located on opposite sides of the substrate 22 for the connector 24 to make connections.

[0095] Exemplarily, the connector 24 may be an SMA connector. The outer conductor of the SMA connector may be welded to the radiation piece 21, and the inner core of the SMA connector may be connected to the feeding line 23.

[0096] In some embodiments, as Figure 7 shown, Figure 7 is a schematic structure diagram of another antenna 20 provided by the embodiment of the present application. The antenna 20 provided by the embodiment of the present application further includes an auxiliary antenna 25. The auxiliary antenna 25 may include an auxiliary radiator 251, and the auxiliary radiator 251 is disposed on the radiation piece 21 and on the side of the straight edge 211 away from the arc edge 212.

[0097] As can be seen from the above, the radiation piece 21 of the antenna 20 provided by the embodiment of the present application only needs to form half of the slot in the Vivaldi antenna. In this way, the side of the straight edge 211 of the radiation piece 21 away from the arc edge 212 can provide an installation position for the auxiliary antenna 25, and the auxiliary radiator 251 of the auxiliary antenna 25 can be disposed on the side of the straight edge 211 away from the arc edge 212.

[0098] Therefore, the antenna 20 provided by the embodiment of the present application can expand the use of an additional auxiliary antenna 25 on the basis of the radiation piece 21 to expand the functions of the antenna 20.

[0099] In some embodiments, as Figure 8 shown, the auxiliary antenna 25 may further include an auxiliary ground plane 252, and the auxiliary ground plane 252 is disposed on the radiation piece 21 ( Figure 7)On the side away from the auxiliary radiator 251. Exemplarily, as Figure 8 shown, the auxiliary floor 252 can be disposed on the side of the substrate 22 away from the radiation sheet 21 ( Figure 7 ).

[0100] At this time, the auxiliary antenna 25 can be a microstrip patch antenna. The microstrip patch antenna can be installed more conveniently. Of course, the auxiliary antenna 25 can also be other types of antennas 20, as long as it can be installed on the radiation sheet 21, and this is only an example for illustration here. In some embodiments, the number of the auxiliary antennas 25 can be multiple. It can be understood that when the area of the radiation sheet 21 is large enough, multiple different types of radiation sheets 21 can be provided on the radiation sheet 21 to further expand the functions of the antenna 20 provided by the embodiments of the present application.

[0101] In some embodiments, the auxiliary antenna 25 can include at least one of a Global Navigation Satellite System (GNSS) antenna and a V2X antenna. Among them, the GNSS antenna 20 can receive signal devices from various satellite navigation systems and can be used for vehicle navigation.

[0102] The V2X antenna 20 can implement the vehicle Internet of Vehicles function, enabling the vehicle to interact with other surrounding vehicles (i.e., implementing the V2V function), infrastructure (i.e., implementing the V2I function), pedestrians (i.e., implementing the V2P function), and roadside traffic lights and roadside units.

[0103] Based on this, through the above-mentioned auxiliary antenna 25, the antenna 20 provided by the embodiments of the present application is used as a vehicle-mounted antenna 20. Of course, the auxiliary antenna 25 can also include other antennas 20, which can be specifically set according to actual needs and will not be further described here.

[0104] In addition, based on Figure 7 the shown antenna 20, the structural characteristics of its radiation sheet 21 can be the same as those of the antenna 20 shown in Figure 3 . For specific introduction, reference can be made to the introduction of the radiation sheet 21 in the antenna 20 shown in Figure 3 above, and no further introduction will be made here.

[0105] As Figure 8 and Figure 9 shown, Figure 8 is Figure 7 the schematic structural diagram of the shown antenna 20 on the other side, Figure 9 is Figure 7 the schematic structural diagram of the shown antenna 20 on the side. This antenna 20 can also include a feeder line 23 and a connector 24, and its specific structure can be the same as that ofFigure 3 The structure of the antenna 20 shown is the same. For a specific introduction, refer to the description of the feeder line 23 and the connector 24 in the antenna 20 shown Figure 3 and there will be no further introduction here.

[0106] In the description of this specification, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0107] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. An antenna, characterized in that: include: A radiation sheet, wherein the radiation sheet has a straight edge and a slit edge; The straight edge has a first end and a second end; one end of the slit edge is connected to the first end, and along the direction from the first end to the second end, the slit edge extends from one end connected to the first end to the other end, and there is a gap with the straight edge.

2. The antenna according to claim 1, characterized in that The gap edge comprises: An arc edge, the arc edge having a third end and a fourth end; the first end is connected to the third end, and along the direction from the first end to the second end, the arc edge extends from the third end to the fourth end, and there is a gap between the fourth end and the straight edge; the straight edge passes through the center of the arc edge; and, An arcuate edge, wherein the arcuate edge has a fifth end and a sixth end; the fifth end is connected to the fourth end, and along the direction from the first end to the second end, the arcuate edge extends from the fifth end to the sixth end, and there is a distance between the sixth end and the second end; along the fifth end to the sixth end, the vertical distance between the arcuate edge and the straight edge gradually increases.

3. The antenna according to claim 2, characterized in that: The radiation sheet also has a connecting edge; the connecting edge has a seventh end and an eighth end; the seventh end is connected to the sixth end, and the eighth end is connected to the second end; the connecting edge extends from the seventh end around the arc edge, the circular arc edge and the periphery of the straight edge to the eighth end.

4. The antenna according to claim 3, characterized in that: The connecting edges include: A first connecting edge, one end of which is the seventh end; the first connecting edge is parallel to the straight edge; A second connecting edge, one end of which is connected to the other end of the first connecting edge and is perpendicular to the first connecting edge; A third connecting edge, one end of which is connected to the other end of the second connecting edge and is perpendicular to the second connecting edge; and A fourth connecting edge has one end connected to the other end of the third connecting edge, and the other end is the eighth end, and the fourth connecting edge is perpendicular to the third connecting edge.

5. The antenna according to claim 4, characterized in that: The length of the first connecting edge is 42 mm to 45 mm.

6. The antenna according to claim 5, characterized in that The vertical distance between the seventh end and the straight edge is 29 mm to 31 mm.

7. The antenna according to claim 1, characterized in that: The antenna also includes: A feeder line, arranged on one side of the radiation sheet; Wherein, the feeder includes: The first feeding plate is fan-shaped.

8. The antenna according to claim 7, characterized in that: The feeder also includes: A plurality of second feeding plates, the ends of which are connected in sequence; and the sizes of the plurality of second feeding plates are gradually reduced along a direction perpendicular to the extension direction of the second feeding plates; Wherein, the first feeding plate is connected to an end of the second feeding plate with the smallest width which is far away from the other second feeding plates.

9. The antenna according to claim 8, characterized in that A plurality of the second feeding plates form a first feeding segment and a second feeding segment connected to each other; the first feeding segment and the second feeding segment are perpendicular to each other, and the first feeding plate is connected to an end of the first feeding segment away from the second feeding segment.

10. The antenna according to claim 9, characterized in that: The center line of the first feeding plate is parallel to the length direction of the first feeding segment; the first feeding plate has two side edges and an arc; one end of the two side edges is respectively connected to one end of the first feeding segment away from the second feeding segment, and the other end is respectively connected to two ends of the arc.

11. The antenna according to claim 10, characterized in that: Along the length direction of the first feeding segment, the distance between the end of the side away from the first feeding segment and the side of the second feeding segment away from the first feeding segment is 26mm~28mm; along the length direction of the second feeding segment, the length of the feed line is 20mm~22mm.

12. The antenna according to claim 8, characterized in that The antenna also includes: A connector is connected to ends of the plurality of second feeding plates away from the first feeding plate.

13. The antenna according to claim 1, characterized in that The antenna also includes: The auxiliary antenna comprises an auxiliary radiator, and the auxiliary radiator is arranged on the radiation sheet and located on a side of the straight edge away from the slot edge.

14. The antenna according to claim 13, characterized in that The auxiliary antenna also includes: The auxiliary floor is arranged on a side of the radiation sheet away from the auxiliary radiator.

15. The antenna according to claim 13, characterized in that: The auxiliary antenna includes at least one of a global navigation satellite system antenna and a V2X antenna.

16. The antenna according to claim 1, characterized in that The antenna also includes: A substrate, wherein the radiation sheet is arranged on the substrate.

17. The antenna according to claim 16, characterized in that The antenna also includes: The feed line is arranged on the substrate and is located on a side of the substrate away from the radiation sheet.

18. The antenna according to claim 16, characterized in that The substrate is made of FR-4 material.

19. A vehicle, characterized in that: The invention comprises the antenna according to any one of claims 1 to 18.

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