Glass antenna with vehicle

Abstract

This application relates to a glass antenna and a vehicle. The glass antenna includes a glass body, a first feed section, and a first antenna structure. The first antenna structure includes a first conductive line, a second conductive line, a third conductive line, a fourth conductive line, and a fifth conductive line. The first, second, and third conductive lines are all electrically connected to the first feed section. The first, second, and third conductive lines are arranged alternately with increasing lengths. The fourth conductive line is electrically connected to the middle portion of the second conductive line and extends towards the first feed section. The fifth conductive line is electrically connected to the middle portion of the third conductive line and is also electrically connected to the other end of the second conductive line, extending towards the first feed section. The first antenna structure can simultaneously cover the DAB and FM frequency bands, thereby improving the performance of the glass antenna. Furthermore, the arrangement allows for a compact structure and reduced volume.

Description

Technical Field

[0001] This application relates to the field of automotive antenna technology, and in particular to a glass antenna and a vehicle. Background Technology

[0002] With the rapid development of the automotive industry, people have increasingly higher requirements for communication systems. As an indispensable component in communication systems, the performance, size, and placement of glass antennas greatly affect the quality of communication systems.

[0003] Among them, glass antennas typically include broadcast antenna structures such as glass antennas, shark fin antennas, and whip antennas. Compared with other broadcast antennas such as shark fin antennas and whip antennas, glass antennas have become the preferred broadcast antennas for major automobile manufacturers due to their advantages in mechanics, aesthetics, electromagnetics, and aerodynamics.

[0004] However, the receiving performance of glass antennas is slightly lower than that of whip antennas. Summary of the Invention

[0005] Therefore, it is necessary to overcome the shortcomings of existing technologies and provide a glass antenna and vehicle that can improve antenna performance.

[0006] Its technical solution includes the following: a glass antenna, the glass antenna comprising:

[0007] Glass body;

[0008] A first power supply unit is disposed on the glass body;

[0009] A first antenna structure disposed on the glass body includes a first conductive line, a second conductive line, a third conductive line, a fourth conductive line, and a fifth conductive line. One end of the first conductive line, one end of the second conductive line, and one end of the third conductive line are all electrically connected to the first feed section. The first conductive line, the second conductive line, and the third conductive line are arranged at intervals and their lengths increase in an increasing trend. One end of the fourth conductive line is electrically connected to the middle portion of the second conductive line, and the other end of the fourth conductive line extends toward the first feed section. One end of the fifth conductive line is electrically connected to the middle portion of the third conductive line, and the fifth conductive line is also electrically connected to the other end of the second conductive line. The other end of the fifth conductive line extends toward the first feed section.

[0010] In one embodiment, the length of the first conductive wire is 110mm-300mm, the length of the second conductive wire is 300mm-360mm, and the length of the third conductive wire is 350mm-650mm.

[0011] In one embodiment, the glass antenna further includes a coupling antenna unit disposed on the glass body and coupled to the third conductive line; the coupling antenna unit includes a first coupling element and a first grid line electrically connected to the first coupling element, wherein the first coupling element and the third conductive line are spaced apart.

[0012] In one embodiment, the first grid line includes at least two first horizontal strips and at least two first vertical strips arranged at intervals, wherein the first horizontal strips and the first vertical strips intersect each other and are electrically connected.

[0013] In one embodiment, the coupled antenna unit further includes a second coupled element arranged along the extension direction of the first coupled element, the second coupled element being spaced apart from the first coupled element, the third conductive line, and the first feed section.

[0014] In one embodiment, the glass antenna further includes a defogging heating unit, which includes two spaced-apart busbars, a plurality of second transverse strips electrically connected between the two busbars and spaced-apart in sequence, and a third coupling element; one end of the third coupling element is electrically connected to the first feed section, and the third coupling element is coupled to one of the busbars.

[0015] In one embodiment, the defogging heating unit further includes at least one second longitudinal strip; the second longitudinal strip is intersected with the second transverse strip and electrically connected to each other.

[0016] In one embodiment, the glass antenna further includes a second feed section disposed on the glass body and a second antenna structure. The second antenna structure includes a third grid line, and the second feed section is electrically connected to the third grid line. The edge lines of the third grid line are used to be spaced apart from the body sheet metal.

[0017] In one embodiment, the third grid line includes at least four third horizontal strips and at least three third vertical strips arranged at intervals in sequence, the third horizontal strips and the third vertical strips intersecting each other and electrically connected; the length of the third horizontal strip is 900mm-1300mm; the interval between two adjacent third horizontal strips is 15mm-21mm.

[0018] In one embodiment, the glass antenna further includes a low-noise amplifier module, a first feed line, and a second feed line. The two ends of the first feed line are electrically connected to the low-noise amplifier module and the first feed section, respectively. The two ends of the second feed line are electrically connected to the low-noise amplifier module and the second feed section, respectively. The length of the first feed line is 80mm-110mm.

[0019] A vehicle includes a body; the vehicle also includes at least one of the glass antennas; each of the glass antennas is correspondingly mounted on the body.

[0020] The aforementioned glass antenna and vehicle have a first antenna structure with five signal transmission paths. The first signal transmission path is the first conductive line; the second signal transmission path extends from the middle of the second conductive line to the fourth conductive line; the third signal transmission path is the third conductive line; the fourth signal transmission path extends from the second conductive line to the fifth conductive line; and the fifth signal transmission path extends from the middle of the third conductive line to the fifth conductive line. Thus, the first antenna structure can simultaneously cover both the DAB and FM frequency bands, improving the performance of the glass antenna. Furthermore, the arrangement allows for a compact structure and reduced size. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a glass antenna according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the first antenna in a glass antenna according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of a coupled antenna element in a glass antenna according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of a glass antenna in an embodiment of the present invention, showing the combination of the first antenna structure and the coupled antenna element.

[0027] Figure 5 This is a schematic diagram of the structure in a glass antenna according to an embodiment of the present invention, showing the mutual coupling between the third coupling element and the busbar.

[0028] Figure 6 This is a schematic diagram of the second antenna structure in a glass antenna according to an embodiment of the present invention;

[0029] Figure 7This is a schematic diagram of the low-noise amplifier module in a glass antenna according to an embodiment of the present invention.

[0030] 10. Glass body; 20. First feed section; 30. First antenna structure; 31. First conductive line; 32. Second conductive line; 33. Third conductive line; 34. Fourth conductive line; 35. Fifth conductive line; 36. Floating printed line; 40. Coupled antenna unit; 41. First coupling element; 42. First grid line; 421. First horizontal strip; 422. First vertical strip; 43. Second coupling element; 50. Defogging heating unit; 51. Busbar; 52. Second horizontal strip; 53. Third coupling element; 54. Second vertical strip; 60. Second feed section; 70. Second antenna structure; 71. Third grid line; 711. Third horizontal strip; 712. Third vertical strip; 80. Body sheet metal; 90. Low noise amplifier module; 91. First feed line; 92. Second feed line. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] It should be noted that the frequency bands involved in the glass antenna in this embodiment mainly include AM: 531KHz-1710KHz, FM: 76MHz-108MHz, and DAB: 170MHz-240MHz. The wavelength corresponding to the AM band transmission in the glass is defined as λ1, which is set to 50m-200m; the wavelength corresponding to the FM band transmission in the glass is defined as λ2, which is set to 1000mm-1500mm; and the wavelength corresponding to the DAB band transmission in the glass is defined as λ3, which is set to 450mm-700mm.

[0033] It should be noted that the wavelength of the antenna signal transmitted through the glass is calculated using the following formula:

[0034] ,

[0035] in, For wavelength, The speed at which the antenna signal travels through the glass. Where C is the frequency and C is the speed of light. Let be the relative permittivity of the glass, specifically 7.3 (approximately 2.7 under the square root). ρ is the relative permeability of the glass, typically 1.

[0036] It should be noted that the relative permittivity of the glass in this application is not limited to 7.3; "coupled connection" means that two conductive elements are not directly electrically connected, but are spaced apart, so that signals can be transmitted between the two conductive elements through coupling.

[0037] See Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of a glass antenna according to an embodiment of the present invention is shown. Figure 2 A schematic diagram of the first antenna structure 30 in a glass antenna according to an embodiment of the present invention is shown. An embodiment of this application provides a glass antenna comprising: a glass body 10, a first feed section 20 disposed on the glass body 10, and a first antenna structure 30 disposed on the glass body 10. The first antenna structure 30 includes a first conductive line 31, a second conductive line 32, a third conductive line 33, a fourth conductive line 34, and a fifth conductive line 35. One end of the first conductive line 31, one end of the second conductive line 32, and one end of the third conductive line 33 are electrically connected to the first feed section 20. The first conductive line 31, the second conductive line 32, and the third conductive line 33 are arranged sequentially at intervals and their lengths increase in an increasing trend. One end of the fourth conductive line 34 is electrically connected to the middle portion of the second conductive line 32, and the other end of the fourth conductive line 34 extends toward the first feed section 20. One end of the fifth conductive wire 35 is electrically connected to the middle of the third conductive wire 33, and the fifth conductive wire 35 is also electrically connected to the other end of the second conductive wire 32. The other end of the fifth conductive wire 35 extends toward the first power supply section 20.

[0038] Specifically, the length of the first conductive wire 31 is 110mm-300mm, the length of the second conductive wire 32 is 300mm-360mm, and the length of the third conductive wire 33 is 350mm-650mm.

[0039] It should be noted that, in order to facilitate the differentiation of signal transmission paths in the following text, the appendix... Figure 1 Solid dots are added to the ends of the intermediate conductive wires and at the joints of the two conductive wires to indicate their positions. These solid dots should not be interpreted as specific structural components on the glass body 10.

[0040] The aforementioned glass antenna, the first antenna structure 30, has five signal transmission paths, the first signal transmission path being the first conductive line 31 (e.g., Figure 2 The Q1-Q2-Q3-Q4 in the diagram have a length of 110mm-300mm, ranging from 1 / 4λ3 to 1 / 2λ3; the second signal transmission path is from the middle of the second conductive line 32 to the fourth conductive line 34 (e.g., ...). Figure 2The Q1-Q2-Q3-Q6-Q5 lines have lengths ranging from 220mm to 600mm, falling between 1 / 4λ3 and 1 / 2λ3; the third signal transmission path is the third conductive line 33 (e.g., ...). Figure 2 The Q1-Q9-Q10 lines are 350mm-650mm in length, falling between 1 / 4λ2 and 1 / 2λ2; the fourth signal transmission path is from the second conductive line 32 to the fifth conductive line 35 (e.g., ...). Figure 2 The Q1-Q2-Q3-Q6-Q7-Q8 lines have lengths ranging from 350mm to 650mm, falling between 1 / 4λ2 and 1 / 2λ2; the fifth signal transmission path extends from the middle of the third conductive line 33 to the fifth conductive line 35 (e.g., ...). Figure 2 The lengths of the Q1-Q2-Q9-Q7-Q8 components range from 350mm to 650mm, falling between 1 / 4λ² and 1 / 2λ². Thus, the first antenna structure 30 can simultaneously cover both the DAB and FM bands, improving the performance of the glass antenna. Furthermore, the arrangement allows for a compact structure and reduced volume.

[0041] In one embodiment, the length of the first signal transmission path is, for example, 110mm, 170mm, 200mm, or 300mm; the length of the second signal transmission path is, for example, 220mm, 315mm, 400mm, or 600mm; the length of the third signal transmission path is, for example, 350mm, 450mm, 475mm, 500mm, or 650mm; the length of the fourth signal transmission path is, for example, 350mm, 400mm, 445mm, 500mm, or 650mm; and the length of the fifth signal transmission path is, for example, 350mm, 400mm, 450mm, 500mm, or 650mm.

[0042] Please see Figure 2 In one embodiment, the fourth conductive wire 34 is specifically designed in an L-shape, for example. One segment of the fourth conductive wire 34 is perpendicularly connected to the middle portion of the second conductive wire 32, and the other segment of the fourth conductive wire 34 is parallel to the second conductive wire 32 and extends toward the first feed portion 20. Furthermore, the fifth conductive wire 35 is specifically designed in an L-shape, for example. One segment of the fifth conductive wire 35 is perpendicularly connected to the middle portion of the third conductive wire 33, and the other segment of the fifth conductive wire 35 is parallel to the third conductive wire 33 and extends toward the first feed portion 20.

[0043] Please see Figures 2 to 4 , Figure 3 A schematic diagram of the structure of the coupling antenna element 40 in a glass antenna according to an embodiment of the present invention is shown. Figure 4A schematic diagram of the structure of a glass antenna according to an embodiment of the present invention, showing the combination of a first antenna structure 30 and a coupled antenna unit 40, is shown. In one embodiment, the glass antenna further includes a coupled antenna unit 40 disposed on the glass body 10 and coupled to a third conductive line 33. The coupled antenna unit 40 includes a first coupling element 41 and a first grid line 42 electrically connected to the first coupling element 41. The first coupling element 41 and the third conductive line 33 are spaced apart to achieve coupling connection. In this way, the antenna signal can be transmitted through the first feed section 20, the third conductive line 33, the first coupling element 41, and the first grid line 42; in addition, the first grid line 42 is used to form a multi-loop printed line structure between 1 / 4λ2, 1 / 2λ2, 3 / 4λ2, λ2, 5 / 4λ2, and 3 / 2λ2, which can optimize the performance of the FM band antenna.

[0044] Please see Figure 3 and Figure 4 In one embodiment, the spacing between the first coupling element 41 and the third conductive line 33 is set to include, but is not limited to, 14mm-34mm, specifically, 14mm, 20mm, 24mm, 28mm, 34mm, etc. By adjusting the spacing between the first coupling element 41 and the third conductive line 33, the coupling degree between the first coupling element 41 and the third conductive line 33 can be adjusted, thereby improving antenna performance.

[0045] Please see Figure 3 and Figure 4 In one embodiment, the first grid line 42 includes at least two first horizontal strips 421 and at least two first vertical strips 422 arranged at intervals. The first horizontal strips 421 and the first vertical strips 422 intersect each other and are electrically connected.

[0046] Optionally, the more first horizontal stripes 421 and / or first vertical stripes 422 there are, the more grids the first grid line 42 will have, and the more obvious the effect of improving antenna performance will be.

[0047] Furthermore, research has found that adjusting the arrangement position and / or spacing of the first longitudinal strip 422 can optimize the antenna performance in the FM band.

[0048] Please see Figure 3 and Figure 4In one embodiment, the coupled antenna unit 40 further includes a second coupling element 43 arranged along the extending direction of the first coupling element 41. The second coupling element 43 is spaced apart from the first coupling element 41, the third conductive line 33, and the first feed section 20. Thus, the first feed section 20 and the third conductive line 33 transmit antenna signals to the second coupling element 43 through coupling, and the second coupling element 43 transmits antenna signals to the first coupling element 41 through coupling. Therefore, the first coupling element 41 is not only coupled to the third conductive line 33 but also coupled to the second coupling element 43, thereby optimizing antenna performance.

[0049] In one embodiment, the first coupling element 41 and the second coupling element 43 are specifically designed, but are not limited to, as printed lines. The shape of the printed lines can be straight, curved, or other shapes set according to actual needs.

[0050] Optionally, the length of the second coupling element 43 may be, but is not limited to, 40mm-60mm, specifically, 40mm, 45mm, 50mm, 55mm, 60mm, etc. The length of the first coupling element 41 can be flexibly adjusted according to different vehicle models to adjust the coupling degree between the first coupling element 41 and the third conductive line 33, thereby achieving the purpose of adjusting antenna performance.

[0051] Optionally, the second coupling element 43 is arranged along the extending direction of the first coupling element 41. Therefore, the spacing between the second coupling element 43 and the third conductive line 33 is consistent with the spacing between the first coupling element 41 and the third conductive line 33. That is, the spacing between the second coupling element 43 and the third conductive line 33 is, but is not limited to, 14mm-34mm, specifically, 14mm, 20mm, 24mm, 28mm, 34mm, etc.

[0052] In one embodiment, the number, arrangement, length, line width, and specific shape of the first horizontal strip 421 and the first vertical strip 422 are respectively referenced to the specific design of each conductive line of the first antenna structure 30, the first coupling element 41 and the second coupling element 43, so that the whole formed by the first antenna structure 30 and the coupled antenna unit 40 is symmetrical, thereby obtaining a good appearance, ensuring a compact arrangement, reducing product size, and improving product performance.

[0053] Please see Figure 4In addition, to ensure the overall symmetrical shape, floating printed lines 36 can be added to the relevant arrangement areas of the first antenna structure 30 according to actual needs. The "floating" in floating printed lines 36 means that they have no electrical connection with the first antenna structure 30 or the coupled antenna unit 40, and have no actual impact on antenna performance. The main purpose is to make the structure more aesthetically pleasing and ensure the symmetry of the overall structure.

[0054] Furthermore, research has shown that when the first antenna structure 30 and the coupled antenna unit 40 coupled to the first antenna structure 30 are combined together, they can simultaneously cover the DAB band and the FM band, and have better broadcast signal reception capabilities compared to the first antenna structure 30 set alone.

[0055] Please see Figure 1 , Figure 4 and Figure 5 , Figure 5 A schematic diagram of the structure in a glass antenna according to an embodiment of the present invention, showing the mutual coupling between the third coupling element 53 and the bus 51, is shown. In one embodiment, the glass antenna further includes a defogging heating unit 50. The defogging heating unit 50 includes two buses 51 spaced apart, a plurality of second transverse strips 52 electrically connected between the two buses 51 and spaced apart sequentially, and a third coupling element 53. One end of the third coupling element 53 is electrically connected to the first feed section 20, and the third coupling element 53 is coupled to one of the buses 51. Thus, on the one hand, when the two buses 51 are respectively connected to the positive and negative terminals of the power supply, the second transverse strips 52 will heat up, playing a role in defogging; on the other hand, since the first feed section 20 is coupled to one of the buses 51 through the third coupling element 53, the antenna performance can be further improved, enabling the second transverse strips 52 to also transmit signals in the DAB band and FM band.

[0056] Please see Figure 1 , Figure 4 and Figure 5 In one embodiment, the defogging heater is also disposed adjacent to the coupled antenna unit 40, thereby achieving coupling connection and further improving antenna performance, enabling the second transverse strip 52 to also transmit signals in the DAB band and FM band. Specifically, the second transverse strip 52, which is close to the first coupling element 41, is disposed at a distance from the first coupling element 41, thereby achieving coupling connection between the two.

[0057] Please see Figure 1 In one embodiment, the defogging heating unit 50 further includes at least one second longitudinal strip 54. The second longitudinal strip 54 is intersecting and electrically connected to the second transverse strip 52. Thus, the second longitudinal strip 54 and the second transverse strip 52 combine to form a second grid line, thereby enabling it to correspond to different wavelengths and frequency bands, further improving antenna performance.

[0058] Please see Figure 1 and Figure 6 In one embodiment, the glass antenna further includes a second feed section 60 disposed on the glass body 10 and a second antenna structure 70. The second antenna structure 70 includes a third grid line 71. The second feed section 60 is electrically connected to the third grid line 71. The edge lines of the third grid line 71 (specifically, for example, the third horizontal strip 711 and the third vertical strip 712 hereinafter) are spaced apart from the body sheet metal 80, and the distance between the edge lines of the third grid line 71 and the body sheet metal 80 is (e.g., ... Figure 6 The distance between the double arrows (S) should not be less than 12mm. Thus, research has shown that when the edge lines of the second grid are spaced at this interval, regardless of whether the third grid line 71 covers signals in the DAB and FM bands or the AM band, the impact of the vehicle body sheet metal 80 on antenna performance can be reduced.

[0059] Please see Figure 1 and Figure 6 In one embodiment, the third grid line 71 includes at least four third horizontal strips 711 and at least three third vertical strips 712 arranged at intervals. The third horizontal strips 711 and the third vertical strips 712 intersect each other and are electrically connected. The length of the third horizontal strip 711 is 900mm-1300mm. The interval between two adjacent third horizontal strips 711 is 15mm-21mm. Thus, the second antenna structure 70 is mainly used to cover AM band signals.

[0060] It should be noted that the number of third horizontal strips 711 may include, but is not limited to, 4, 5, 6, 7, etc. The number of third vertical strips 712 may include, but is not limited to, 3, 4, 5, 6, 7, 8, etc. Furthermore, the length of each segment formed by the division of the third horizontal strips 711 and the third vertical strips 712 is not less than 50mm. This ensures the antenna performance of the second antenna structure 70.

[0061] In one specific embodiment, there are, for example, six third transverse strips 711, each with a length of, for example, 1100 mm and a spacing of, for example, 18 mm between them. These strips are then evenly divided into six parts by seven third longitudinal strips 712, with two of the third longitudinal strips 712 connected to the two ends of the third transverse strips 711 respectively.

[0062] Please see Figure 1 and Figure 7 , Figure 7A schematic diagram of a low-noise amplifier module 90 in a glass antenna according to an embodiment of the present invention is shown. In one embodiment, the glass antenna further includes a low-noise amplifier module 90 (LNA), a first feed line 91, and a second feed line 92. The two ends of the first feed line 91 are electrically connected to the low-noise amplifier module 90 and the first feed section 20, respectively, and the two ends of the second feed line 92 are electrically connected to the low-noise amplifier module 90 and the second feed section 60, respectively. Specifically, the length of the first feed line 91 is 80mm-110mm. Thus, on the one hand, the first antenna structure 30, the second antenna structure 70, and the low-noise amplifier module 90 are combined and used together through the first feed line 91 and the second feed line 92; on the other hand, since the wavelength size of the FM / DAB band is relatively small (λ / 4 is about 0.3m-1m), the feed line length has a greater impact on antenna performance. To reduce this impact, the length of the first feed line 91 is limited and specifically set to 80mm-110mm. In this way, the length and placement of the first feed line 91 have a smaller impact on the antenna performance of the first antenna structure 30. In addition, since the AM band is a medium wave signal with a wavelength λ1 of about 300m-3000m, the length of the second feed line 92 is not a large proportion of the wavelength λ1, and has a small impact on the antenna performance of the second antenna structure 70. Therefore, the length of the second feed line 92 can be designed to be relatively long, for example, within 10 meters to meet the actual needs.

[0063] Please refer to the following: Figure 1 In one embodiment, the first antenna structure 30 and the coupled antenna unit 40 are both arranged in the lower region of the surface of the glass body 10, the defogging heating unit 50 is arranged in the middle region of the surface of the glass body 10, and the second antenna structure 70 is arranged in the upper region of the surface of the glass body 10. Furthermore, the low-noise amplifier module 90 is arranged on one side of the surface of the glass body 10. Specifically, to meet the length design of the first feed line 91, the low-noise amplifier module 90 is mounted on one side of the sheet metal of the surface of the glass body 10 and positioned close to the lower part.

[0064] In one embodiment, the gains of the LNA in the AM, FM, and DAB bands are 0dB, 8dB, and 15dB, respectively. The LNA location is considered during the design process, and the printing positions of the glass antenna are planned. Conductive materials such as silver paste are baked onto the glass body 10. The antenna bandwidth, impedance, and radiation direction (receiving direction) are adjusted by varying the length, number, or spacing of different silver paste lines.

[0065] In one embodiment, a vehicle includes a body; the vehicle also includes a glass antenna according to any of the above embodiments. Each glass antenna is correspondingly mounted on the vehicle body. The glass body 10 includes, but is not limited to, one or more of a windshield, side window, rear windshield, and sunroof.

[0066] The aforementioned vehicle has a first antenna structure 30 with five signal transmission paths, the first signal transmission path being the first conductive line 31 (e.g., Figure 2 The second signal transmission path is from the middle of the second conductive line 32 to the fourth conductive line 34 (e.g., Q1-Q2-Q3-Q4). Figure 2 The third signal transmission path is the third conductive line 33 (e.g., Q1-Q2-Q3-Q6-Q5). Figure 2 The fourth signal transmission path is from the second conductive line 32 to the fifth conductive line 35 (e.g., Q1-Q9-Q10 in the original text). Figure 2 The fifth signal transmission path is from the middle of the third conductive line 33 to the fifth conductive line 35 (e.g., Q1-Q2-Q3-Q6-Q7-Q8). Figure 2 (Q1-Q2-Q9-Q7-Q8 in the diagram). As can be seen, the first antenna structure 30 can simultaneously cover the DAB band and the FM band, thereby improving the performance of the glass antenna. In addition, the arrangement can achieve a compact structure and reduce the size.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

[0069] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0071] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0072] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0073] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. A glass antenna, characterized in that, The glass antenna includes: Glass body; A first power supply unit is disposed on the glass body; A first antenna structure disposed on the glass body includes a first conductive line, a second conductive line, a third conductive line, a fourth conductive line, and a fifth conductive line. One end of the first conductive line, one end of the second conductive line, and one end of the third conductive line are electrically connected to the first feed section. The first, second, and third conductive lines are arranged alternately with increasing length. One end of the fourth conductive line is electrically connected to the middle portion of the second conductive line, and the other end of the fourth conductive line extends towards the first feed section. One end of the fifth conductive line is electrically connected to the middle portion of the third conductive line. It is also electrically connected to the other end of the second conductive line, and the other end of the fifth conductive line extends toward the first feed section; wherein, the first antenna structure has five signal transmission paths; the first signal transmission path is from the first feed section to the first conductive line; the second signal transmission path is from the first feed section, the middle part of the second conductive line to the fourth conductive line; the third signal transmission path is from the first feed section to the third conductive line; the fourth signal transmission path is from the first feed section, the second conductive line and the fifth conductive line; the fifth signal transmission path is from the first feed section, the middle part of the third conductive line to the fifth conductive line.

2. The glass antenna according to claim 1, characterized in that, The length of the first conductive wire is 110mm-300mm, the length of the second conductive wire is 300mm-360mm, and the length of the third conductive wire is 350mm-650mm.

3. The glass antenna according to claim 1, characterized in that, The glass antenna further includes a coupling antenna unit disposed on the glass body and coupled to the third conductive line; the coupling antenna unit includes a first coupling element and a first grid line electrically connected to the first coupling element, wherein the first coupling element and the third conductive line are spaced apart.

4. The glass antenna according to claim 3, characterized in that, The first grid line includes at least two first horizontal strips and at least two first vertical strips arranged at intervals. The first horizontal strips and the first vertical strips intersect each other and are electrically connected.

5. The glass antenna according to claim 3, characterized in that, The coupled antenna unit further includes a second coupled element arranged along the extension direction of the first coupled element, and the second coupled element is spaced apart from the first coupled element, the third conductive line, and the first feed section.

6. The glass antenna according to claim 3, characterized in that, The glass antenna further includes a defogging heating unit, which includes two spaced-apart busbars, a plurality of second transverse strips electrically connected between the two busbars and spaced-apart in sequence, and a third coupling element; one end of the third coupling element is electrically connected to the first feed section, and the third coupling element is coupled to one of the busbars.

7. The glass antenna according to claim 6, characterized in that, The defogging heating unit further includes at least one second longitudinal strip; the second longitudinal strip and the second transverse strip are arranged intersectingly and electrically connected to each other.

8. The glass antenna according to claim 1, characterized in that, The glass antenna also includes a second feed section disposed on the glass body and a second antenna structure. The second antenna structure includes a third grid line, and the second feed section is electrically connected to the third grid line. The edge lines of the third grid line are used to be spaced apart from the body sheet metal.

9. The glass antenna according to claim 8, characterized in that, The third grid line includes at least four third horizontal strips and at least three third vertical strips arranged at intervals. The third horizontal strips and the third vertical strips intersect each other and are electrically connected. The length of the third horizontal strip is 900mm-1300mm. The interval between two adjacent third horizontal strips is 15mm-21mm.

10. The glass antenna according to claim 8, characterized in that, The glass antenna further includes a low-noise amplifier module, a first feed line, and a second feed line. The two ends of the first feed line are electrically connected to the low-noise amplifier module and the first feed section, respectively. The two ends of the second feed line are electrically connected to the low-noise amplifier module and the second feed section, respectively. The length of the first feed line is 80mm-110mm.

11. A vehicle, characterized in that, The vehicle includes a body; the vehicle also includes at least one glass antenna as described in any one of claims 1 to 10; each of the glass antennas is correspondingly mounted on the vehicle body.

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