Glass antenna and vehicle

Abstract

The present application relates to a glass antenna and a vehicle. The glass antenna comprises a glass body (10), a first feed portion (20), and a first antenna structure (30). The first antenna structure (30) comprises 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 portion (20), and the first conductive line (31), the second conductive line (32), and the third conductive line (33) are sequentially arranged at intervals with successively increasing lengths. One end of the fourth conductive line (34) is electrically connected to a middle part of the second conductive line (32). One end of the fifth conductive line (35) is electrically connected to the middle of the third conductive line (33), and the fifth conductive line (35) is further electrically connected to the other end of the second conductive line (32).

Description

CROSS REFERENCES TO RELATED APPLICATION

[0001] This application claims priority of China Patent Application No.2022113991469, filed on November 9, 2022, entitled "Glass Antenna and Vehicle", the content of which is hereby incorporated by reference in its entirety.TECHNICAL FIELD

[0002] This application relates to the field of vehicle antenna technologies, and in particular, to a glass antenna and a vehicle.BACKGROUND

[0003] With rapid development of the automotive industry, a requirement for the communications system is becoming higher and higher. As an indispensable component in the communication system, the performance, the size and the placement of the glass antenna greatly affect the quality of the communication system.

[0004] The glass antenna generally includes a broadcast antenna such as a glass antenna, a shark-fin antenna, and a whip antenna. Compared with other broadcast antennas such as the shark-fin antenna and the whip antenna, the glass antenna has advantages in mechanics, aesthetics, electromagnetism, and aerodynamics, and has become a broadcast antenna preferred by major automotive manufacturers.

[0005] However, a reception performance of the glass antenna is slightly lower than that of the whip antenna.SUMMARY

[0006] According to various embodiments of the present disclosure, a glass antenna and a vehicle is provided.

[0007] A glass antenna is provided, which includes: a glass body, a first feeding portion and a first antenna structure.

[0008] The first feeding portion is provided on the glass body.

[0009] The first antenna structure is provided on the glass body. The first antenna structure includes a first conductive wire, a second conductive wire, a third conductive wire, a fourth conductive wire, and a fifth conductive wire. An end of the first conductive wire, an end of the second conductive wire, and an end of the third conductive wire are electrically connected to the first feeding portion. The first conductive wire, the second conductive wire, and the third conductive wire are spaced apart from each other in sequence with increasing lengths thereof. An end of the fourth conductive wire is electrically connected to a middle portion of the second conductive wire, and another end of the fourth conductive wire extends in a direction towards the first feeding portion. An end of the fifth conductive wire is electrically connected to a middle portion of the third conductive wire. The fifth conductive wire is further electrically connected to another end of the second conductive wire, and another end of the fifth conductive wire extends in a direction towards the first feeding portion.

[0010] In one of the embodiments, the length of the first conductive wire is in a range from 110mm to 300mm. The length of the second conductive wire is in a range from 300mm to 360mm. The length of the third conductive wire is in a range from 350mm to 650mm. A length of the fourth conductive wire is in a range from 350mm to 650mm. A length of the fifth conductive wire is in a range from 350mm to 650mm.

[0011] In one of the embodiments, the glass antenna further includes a coupling antenna unit provided on the glass body and coupled and connected to the third conductive wire. The coupling antenna unit includes a first coupling element and a first grid wire electrically connected to the first coupling element. The first coupling element and the third conductive wire are spaced apart from each other.

[0012] In one of the embodiments, the first grid wire includes at least two first lateral strips spaced apart from each other in sequence and at least two first longitudinal strips spaced apart from each other in sequence, and the first lateral strips are crossed and electrically connected to the first longitudinal strips.

[0013] In one of the embodiments, the coupling antenna unit further includes a second coupling element arranged along an extension direction of the first coupling element, and the second coupling element is spaced apart from the first coupling element, the third conductive wire, and the first feeding portion, respectively.

[0014] In one of the embodiments, the glass antenna further includes a fog removal heating unit. The fog removal heating unit includes two buses spaced apart from each other, a plurality of second lateral strips spaced apart from each other in sequence and electrically connected between the two buses and a third coupling element, an end of which being electrically connected to the first feeding portion, the third coupling element is coupled and connected to one of the buses.

[0015] In one of the embodiments, the fog removal heating unit further includes at least one second longitudinal strip crossed and electrically connected to the second horizontal strip.

[0016] In one of the embodiments, the glass antenna further includes a second feeding portion and a second antenna structure that are provided on the glass body. The second antenna structure includes a third grid wire. The second feeding portion is electrically connected to the third grid wire and edge lines of the third grid wire is configured to be spaced apart from the vehicle body sheet metal.

[0017] In one of the embodiments, the third grid wire includes at least four third lateral strips spaced apart from each other and at least three third longitudinal strips spaced apart from each other. The third horizontal strip is crossed and electrically connected to the third longitudinal strip. A length of the third horizontal strip is in a range from 900mm to 1300mm and a space between two adjacent third lateral strips is in a range from 15mm to 21mm.

[0018] In one of the embodiments, the glass antenna further includes a low-noise amplifier module, a first feeder, and a second feeder. Two ends of the first feeder are electrically connected to the low-noise amplifier module and the first feeding portion. Two ends of the second feeder are electrically connected to the low-noise amplifier module and the second feeding portion. A length of the first feeder is in a range from 80mm to 110mm.

[0019] A vehicle is provided, which includes a vehicle body and at least one of the glass antennas. Each of the glass antennas is correspondingly mounted on the vehicle body.

[0020] The details of one or more embodiments of the present disclosure are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the present disclosure will become apparent from the description, drawings and claims.BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings that constitute a part of the present disclosure are used to provide a further understanding of the present disclosure. Schematic embodiments of the present disclosure and descriptions thereof are used to explain the present disclosure, and do not constitute improper limitations of the present disclosure.

[0022] To describe the technical solutions in the embodiments of the present disclosure more clearly, the following briefly describes the accompanying drawings required for describing the embodiments. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and those who skill in the art may still derive other drawings from these accompanying drawings without creative efforts. FIG. 1 is a schematic view of a glass antenna according to an embodiment of the present disclosure; FIG. 2 is a schematic view of a first antenna structure of the glass antenna according to an embodiment of the present disclosure; FIG. 3 is a schematic view of a coupling antenna unit of the glass antenna according to an embodiment of the present disclosure; FIG. 4 is a schematic view of the first antenna structure and the coupling antenna unit of the glass antenna combined to each other according to an embodiment of the present disclosure; FIG. 5 is a schematic view of the third coupling element and the bus of the glass antenna coupled to each other according to an embodiment of the present disclosure; FIG. 6 is a schematic view of a second antenna structure of the glass antenna according to an embodiment of the present disclosure; FIG. 7 is a schematic view of a low-noise amplifier module of the glass antenna according to an embodiment of the present disclosure. Description of the Reference Numerals:

[0023] 10: a glass body, a first feeding portion and a first antenna structure. first feeding portion; 30: first antenna structure; 31: first conductive wire; 32: second conductive wire; 33: third conductive wire; 34: fourth conductive wire; 35: fifth conductive wire; 36: suspension printing wire; 40: coupling antenna unit; 41: first coupling element; 42: first grid wire; 421: first horizontal strip; 422: first longitudinal strip; 43: second coupling element; 50: fog removal heating unit; 51: bus; 52: second horizontal strip; 53: third coupling element; 54: second longitudinal strip; 60: second feeding portion; 70: second antenna structure; 71: third grid wire; 711: third horizontal strip; 712: third longitudinal strip; 80: vehicle body sheet metal; 90: low-noise amplifier module; 91: first feeder; 92: second feeder.DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the aforementioned objects, features and advantages of the present disclosure more clearly understood, the specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. However, the present disclosure can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present disclosure. Therefore, the present disclosure is not limited by the specific embodiments disclosed below.

[0025] 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 frequency band when transmitted in glass is defined as λ 1 , and λ 1 is provided in a range from 50m to 200m. The wavelength corresponding to the FM frequency band when transmitted in glass is defined as λ 2 , and λ 2 is provided in a range from 1000mm to 1500mm. The wavelength corresponding to the DAB frequency band when transmitted in glass is defined as λ 3 , and λ 3 is provided in a range from 450mm to 700mm.

[0026] It should be noted that the wavelength of the antenna signal when transmitted in glass is calculated according to the following formula: λ = C glass / f , C glass = C / ε r μ r where λ is the wavelength, C glass is the speed at which the antenna signal is transmitted in the glass, f is the frequency, C is the speed of light, ε r is the relative dielectric constant of the glass, specifically taking 7.3 as an example (about 2.7 under the square root), µ r is the relative magnetic permeability of the glass, generally is 1.

[0027] It should be noted that the relative dielectric constant of the glass in the present disclosure is not limited to 7.3; "coupled and connected" means that the two conductive elements are not directly electrically connected, but are spaced apart so that the signal is transmitted between the two conductive elements by means of coupling.

[0028] Referring to FIG. 1 and FIG. 2, FIG. 1 shows a schematic view of a glass antenna according to an embodiment of the present disclosure, and FIG. 2 shows a schematic view of a first antenna structure 30 of the glass antenna according to an embodiment of the present disclosure. A glass antenna is provided according to an embodiment of the present disclosure, which includes a glass body 10, a first feeding portion 20 provided on the glass body 10, and a first antenna structure 30 provided on the glass body 10. The first antenna structure 30 includes a first conductive wire 31, a second conductive wire 32, a third conductive wire 33, a fourth conductive wire 34, and a fifth conductive wire 35. An end of the first conductive wire 31, an end of the second conductive wire 32, and an end of the third conductive wire 33 are electrically connected to the first feeding portion 20, the first conductive wire 31, the second conductive wire 32, and the third conductive wire 33 are spaced apart from each other in sequence and lengths thereof gradually increase. An end of the fourth conductive wire 34 is electrically connected to a middle portion of the second conductive wire 32, and the other end of the fourth conductive wire 34 extends in a direction towards the first feeding portion 20. An end of the fifth conductive wire 35 is electrically connected to a middle portion of the third conductive wire 33. The fifth conductive wire 35 is further electrically connected to another end of the second conductive wire 32, and the other end of the fifth conductive wire 35 extends in a direction towards the first feeding portion 20.

[0029] Specifically, the length of the first conductive wire is in a range from 110mm to 300mm. The length of the second conductive wire is in a range from 300mm to 360mm. The length of the third conductive wire is in a range from 350mm to 650mm. The length of the fourth conductive wire is in a range from 350mm to 650mm. The length of the fifth conductive wire in a range from 350mm to 650mm.

[0030] It should be noted that, in order to facilitate the description and distinction of signal transmission paths below, solid dot signs are added to end portions of the conductive wires and joints of the two conductive wires in FIG. 1 to indicate locations, and the solid dots cannot be understood as specific structural parts provided on the glass body 10.

[0031] In the aforementioned glass antenna, the first antenna structure 30 is provided with five signal transmission paths. The first signal transmission path is the first conductive wire 31 (such as Q1-Q2-Q3-Q4 in FIG. 2), with a length in a range from 110 mm to 300 mm and between 1 / 4λ 3 and 1 / 2λ 3 . The second signal transmission path is from the middle portion of the second conductive wire 32 to the fourth conductive wire 34 (such as Q1-Q2-Q3-Q6-Q5 in FIG. 2), with a length in a range from 220 mm to 600 mm and between 1 / 4λ 3 and 1 / 2λ 3 . The third signal transmission path is the third conductive wire 33 (such as Q1-Q9-Q10 in FIG. 2), with a length in a range from 350 mm to 650 mm and between 1 / 4λ 2 and 1 / 2λ 2 . The fourth signal transmission path is from the second conductive wire 32 to the fifth conductive wire 35 (such as Q1-Q2-Q3-Q6-Q7-Q8 in FIG. 2), with a length in a range from 350mm to 650mm and between 1 / 4λ2 and 1 / 2λ2. The fifth signal transmission path is from a middle portion of the third conductive wire 33 to the fifth conductive wire 35 (such as Q1-Q2-Q9-Q7-Q8 in FIG. 2), with a length in a range from 350mm to 650mm and between 1 / 4λ 2 and 1 / 2λ 2 . It can be seen that the first antenna structure 30 can cover the DAB frequency band and the FM frequency band at the same time, so that the performance of the glass antenna can be improved. In addition, the arrangement form can achieve a compact structure and reduce the volume.

[0032] In an embodiment, the length of the first signal transmission path is, for example, 110mm, 170mm, 200 mm, and 300 mm. The length of the second signal transmission path is, for example, 220mm, 315mm, 400mm, and 600mm. The length of the third signal transmission path is, for example, 350mm, 450mm, 475mm, 500 mm, and 650mm. The length of the fourth signal transmission path is, for example, 350mm, 400mm, 445mm, 500 mm, and 650mm. The length of the fifth signal transmission path is, for example, 350mm, 400mm, 450mm, 500 mm, and 650mm.

[0033] Referring to FIG. 2, in an embodiment, the fourth conductive wire 34 is specifically designed to be L-shaped, a segment of the fourth conductive wire 34 is vertically connected to the middle portion of the second conductive wire 32, and another segment of the fourth conductive wire 34 is parallel to the second conductive wire 32 and extends in a direction towards the first feeding portion 20. In addition, for example, the fifth conductive wire 35 is specifically designed to be L-shaped, a segment of the fifth conductive wire 35 is vertically connected to the middle portion of the third conductive wire 33, and another segment of the fifth conductive wire 35 is parallel to the third conductive wire 33 and extends in a direction of the first feeding portion 20.

[0034] Referring to FIG. 2 to FIG. 4, FIG. 3 shows a schematic view of a coupling antenna unit 40 of the glass antenna according to an embodiment of the present disclosure. FIG. 4 shows a schematic view of a combination of a first antenna structure 30 and a coupling antenna unit 40 of the glass antenna according to an embodiment of the present disclosure. In an embodiment, the glass antenna further includes a coupling antenna unit 40 provided on the glass body 10 and coupled and connected to the third conductive wire 33. The coupling antenna unit 40 includes a first coupling element 41 and a first grid wire 42 electrically connected to the first coupling element 41. The first coupling element 41 and the third conductive wire 33 are spaced apart from each other, so that coupling and connecting is achieved. As such, the antenna signal may be transmitted through the first feeding portion 20, the third conductive wire 33, the first coupling element 41, and the first grid wire 42. In addition, the first grid wire 42 is configured to form a multi-circuit printing line structure such as 1 / 4λ 2 , 1 / 2λ 2 , 3 / 4λ 2 , λ 2 , 5 / 4λ 2 , 3 / 2λ 2 , and the like, so as to optimize the performance of the FM frequency band antenna.

[0035] Referring to FIG. 3 and FIG. 4, in an embodiment, a spacing distance between the first coupling element 41 and the third conductive wire 33 is set to include but is not limited to a range from 14mm to 34mm, for example, 14mm, 20 mm, 24mm, 28mm, and 34mm. By adjusting the distance between the first coupling element 41 and the third conductive wire 33, the coupling degree between the first coupling element 41 and the third conductive wire 33 can be adjusted, thereby improving antenna performance.

[0036] Referring to FIG. 3 and FIG. 4, in an embodiment, the first grid wire 42 includes at least two first lateral strips 421 spaced apart from each other in sequence and at least two first longitudinal strips 422 spaced apart from each other in sequence. The first lateral strips 421 and first longitudinal strips 422 intersect and are electrically connected.

[0037] Optionally, when the quantity of the first horizontal strip 421 and / or the first longitudinal strip 422 increases, a corresponding quantity of grids of the first grid wire 42 increases, and an effect of improving antenna performance is increased.

[0038] In addition, it is found that when the placement position and / or the spacing distance of the first longitudinal strips 422 are adjusted, the antenna performance of the FM frequency band can be optimized.

[0039] Referring to FIG. 3 and FIG. 4, in an embodiment, the coupling antenna unit 40 further includes a second coupling element 43 arranged in an 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 wire 33, and the first feeding portion 20, respectively. As such, the first feeding portion 20 and the third conductive wire 33 can transmit the antenna signal to the second coupling element 43 in a coupling manner, and the second coupling element 43 can transmit the antenna signal to the first coupling element 41 in a coupling manner. Therefore, the first coupling element 41 is not only coupled and connected to the third conductive wire 33, but also is coupled and connected to the first coupling element 41, such that the antenna performance is optimized.

[0040] In an embodiment, a specific design of the first coupling element 41 and the second coupling element 43 includes but is not limited to a printing line. A shape of the printing line may be a straight line, may be a curve line, or may be other shapes set according to an actual requirement.

[0041] Optionally, a length of the second coupling element 43 includes but is not limited to a range from 40mm to 60mm, and is specifically set to, for example, 40 mm, 45mm, 50 mm, 55mm, and 60 mm. The length of the first coupling element 41 may be flexibly adjusted according to different vehicle models, so as to adjust a coupling degree between the first coupling element 41 and the third conductive wire 33, thereby achieving an objective of adjusting antenna performance.

[0042] Optionally, the second coupling element 43 is arranged according to an extending direction of the first coupling element 41. Therefore, a spacing distance between the second coupling element 43 and the third conductive wire 33 is consistent with a spacing distance between the first coupling element 41 and the third conductive wire 33. That is, the spacing distance between the second coupling element 43 and the third conductive wire 33 includes but is not limited to a range from 14mm to 34mm, for example, 14mm, 20 mm, 24mm, 28mm, and 34mm.

[0043] In an embodiment, when the first grid wire 42 is specifically designed, a quantity, an arrangement position, a length, a line width, a specific shape, and the like of the first horizontal strip 421 and the first longitudinal strip 422 are respectively referred to the specific design form of each guide wire of the first antenna structure 30, the first coupling element 41 and the second coupling element 43, such that an entirety formed by the first antenna structure 30 and the coupling antenna unit 40 has a symmetrical shape, thereby obtaining a good appearance, ensuring a compact arrangement, reducing a product volume, and improving product performance.

[0044] Referring to FIG. 4, in addition, in order to ensure that the entirety has a symmetrical shape, a suspension printing wire 36 may be additionally provided at a related arrangement region of the first antenna structure 30 according to an actual requirement. "Suspension" in the suspension printing wire 36 means that the suspension printing wire 36 is neither electrically connected to the first antenna structure 30 nor the coupling antenna unit 40, and has no actual effect on the antenna performance. The main purpose is to make the structure more beautiful and ensure the symmetry of the whole structure.

[0045] In addition, it is found that when the first antenna structure 30 and the coupling antenna unit 40 coupled with the first antenna structure 30 are combined, the DAB frequency band and the FM frequency band can be simultaneously covered, and a broadcast signal receiving function is better than a separately disposed first antenna structure 30.

[0046] Referring to FIG. 1, FIG. 4, and FIG. 5, FIG. 5 is a schematic view of the third coupling element and the bus of the glass antenna coupled to each other according to an embodiment of the present disclosure. In an embodiment, the glass antenna further includes a fog removal heating unit 50. The fog removal heating unit 50 includes two buses 51 spaced apart from each other, a plurality of second lateral strips 52 spaced apart from each other in sequence and electrically connected between the two buses 51, and the third coupling element 53. An end of the third coupling element 53 is electrically connected to the first feeding portion 20, and the third coupling element 53 is coupled and connected to one of the buses 51. As such, on the one hand, after the two buses 51 are connected to the positive electrode and the negative electrode of the power supply, respectively, the second horizontal strip 52 generates heat to play a demisting role; on the other hand, because the first feeding portion 20 is coupled and connected to one of the buses 51 through the third coupling element 53, the antenna performance can be further improved, such that the second horizontal strip 52 can further transmit signals of the DAB frequency band and the FM frequency band.

[0047] Referring to FIG. 1, FIG. 4, and FIG. 5, in an embodiment, the defog heater is further disposed adjacent to the coupling antenna unit 40 to implement coupling and connecting, such that the antenna performance can be further improved, thus the second horizontal strip 52 can further transmit signals of the DAB frequency band and the FM frequency band. Specifically, the second horizontal strip 52 adjacent to the first coupling element 41 and the first coupling element 41 are spaced apart from each other, such that the two are coupled and connected.

[0048] Referring to FIG. 1, in an embodiment, the fog removal heating unit 50 further includes at least one second longitudinal strip 54. The second longitudinal strip 54 intersects and is electrically connected to the second horizontal strip 52. As such, the second longitudinal strip 54 and the second horizontal strip 52 are combined to form a second grid line, so as to correspond to different wavelengths and frequency bands, thereby further improving the antenna performance.

[0049] Referring to FIG. 1 and FIG. 6, in an embodiment, the glass antenna further includes a second feeding portion 60 and a second antenna structure 70 that are provided on the glass body 10. The second antenna structure 70 includes a third grid wire 71. The second feeding portion 60 is electrically connected to the third grid wire 71. Edge lines of the third grid wire 71 (specifically, the third horizontal strip 711 and the third longitudinal strip 712 described below) are configured to be spaced apart from a vehicle body sheet metal 80, and the distance between the edge lines of the third grid wire 71 and the vehicle body sheet metal 80 (as shown by the double arrow S in FIG. 6) is no less than 12 mm. Thus, it is found through research that when the edge lines of the second grid lines are spaced apart from each other at this distance, whether the third grid wire 71 covers the signals of the DAB frequency band and the FM frequency band, or the AM frequency band, the influence of the vehicle body sheet metal 80 on the antenna performance can be reduced.

[0050] Referring to FIG. 1 and FIG. 6, in an embodiment, the third grid wire 71 includes at least four third lateral strips 711 spaced apart from each other in sequence and at least three first longitudinal strips 712 spaced apart from each other in sequence. The third lateral strips 711 and the third longitudinal strips 712 intersect and are electrically connected. A length of the third horizontal strip 711 is in a range from 900mm to 1300mm. A distance between two adjacent third lateral strips 711 is in a range from 15mm to 21mm. Thus, the second antenna structure 70 is mainly configured to cover the signal of the AM frequency band.

[0051] It should be noted that the number of third lateral strips 711 includes but is not limited to 4, 5, 6, 7 and the like. The number of the third longitudinal strips 712 set includes but is not limited to 3, 4, 5, 6, 7, 8, etc. In addition, a length of each strip segment formed by the third horizontal strip 711 separated by the third longitudinal strip 712 is no less than 50mm. Thus, the antenna performance of the second antenna structure 70 can be guaranteed.

[0052] In a specific embodiment, there is, for example, six third lateral strips 711 are provided, a length thereof is, for example, 1100 mm, and a spacing distance therebetween is, for example, 18 mm. Then the six third lateral strips 711 are evenly divided into six parts by seven third longitudinal strips 712. Two of the third longitudinal strips 712 are connected to two ends of the third lateral strips 711, respectively.

[0053] Referring to FIG. 1 and FIG. 7, FIG. 7 shows a schematic view of a low-noise amplifier module of the glass antenna according to an embodiment of the present disclosure. In an embodiment, the glass antenna further includes a low-noise amplifier module 90 (LNA), a first feeder 91, and a second feeder 92. Two ends of the first feeder 91 are electrically connected to the low-noise amplifier module 90 and the first feeding portion 20, respectively, and two ends of the second feeder 92 are electrically connected to the low-noise amplifier module 90 and the second feeding portion 60, respectively. Specifically, a length of the first feeder 91 is in a range from 80 mm to 110 mm. 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 feeder 91 and the second feeder 92; on the other hand, since the wavelength size of the FM / DAB frequency band is smaller (λ / 4 is about in a range from 0.3m to 1m), the feeder length has a greater impact on the antenna performance. In order to reduce its impact, the length of the first feeder 91 is limited and specifically provided in a range from 80mm to 110mm, such that the length and the placement of the first feeder 91 have a smaller impact on the antenna performance of the first antenna structure 30. In addition, since the AM frequency band is a medium wave signal and its wavelength λ1 is about in a range from 300m to 3000m, the length of the second feeder 92 does not take a large proportion relative to the length of the wavelength λ1, and has a smaller impact on the antenna performance of the second antenna structure 70, such that the length of the second feeder 92 can be designed to be relatively long, for example, within 10 meters to meet actual needs.

[0054] Referring to FIG. 1 again. in an embodiment, the first antenna structure 30 and the coupling antenna unit 40 are arranged in a lower region of a surface of the glass body 10, the fog removal heating unit 50 is arranged in a middle region of the surface of the glass body 10, and the second antenna structure 70 is arranged in an upper region of the surface of the glass body 10. In addition, the low-noise amplifier module 90 is arranged on a side of the surface of the glass body 10. Specifically, in order to meet the length design of the first feeder 91, the low-noise amplifier module 90 is provided on the sheet metal on a side of the surface of the glass body 10 and adjacent to the lower position.

[0055] In an embodiment, the gains of the LNA in the AM frequency band, the FM frequency band, and the DAB frequency band are AM: 0dB, FM: 8dB, and DAB: 15dB, respectively. During the design, the LNA position is considered, the printing position of the glass antenna is planned, the conductive coal such as silver paste is baked on the glass body 10, and the antenna bandwidth, impedance, radiation direction (receiving direction) and other performances are adjusted by adjusting the length, number or space between different silver paste lines.

[0056] In an embodiment, a vehicle is provided, which includes a vehicle body and the glass antenna according to any of the aforementioned 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 front windshield, a side window glass, a rear windshield, and a sunroof glass.

[0057] In the aforementioned vehicle, the first antenna structure 30 is provided with five signal transmission paths. The first signal transmission path is the first conductive wire 31 (such as Q1-Q2-Q3-Q4 in FIG. 2). The second signal transmission path is from the middle portion of the second conductive wire 32 to the fourth conductive wire 34 (such as Q1-Q2-Q3-Q6-Q5 in FIG. 2). The third signal transmission path is the third conductive wire 33 (such as Q1-Q9-Q10 in FIG. 2). The fourth signal transmission path is from the second conductive wire 32 to the fifth conductive wire 35 (such as Q1-Q2-Q3-Q6-Q7-Q8 in FIG. 2). The fifth signal transmission path is from the middle portion of the third conductive wire 33 to the fifth conductive wire 35 (such as Q1-Q2-Q9-Q7-Q8 in FIG. 2). It can be seen that the first antenna structure 30 can cover the DAB frequency band and the FM frequency band at the same time, so that the performance of the glass antenna can be improved. In addition, the arrangement form can achieve a compact structure and reduce the volume.

[0058] The technical features of the aforementioned embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the aforementioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, it is considered to be the range described in this specification.

[0059] The above embodiments merely illustrate several embodiments of the present disclosure, and the description thereof is specific and detailed, but it shall not be constructed as limiting the scope of the disclosure. It should be noted that, for a person of ordinary skill in the art, several variations and improvements may be made without departing from the concept of the present disclosure, and these are all within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the appended claims.

[0060] In the description of the present disclosure, it is necessary to understand that the azimuth or positional relationship indicated by the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial, "circumferential," etc., is based on the azimuth or positional relationship shown on the accompanying drawings, solely for the purpose of facilitating the description of the present disclosure and simplifying the description, and not that the device or element indicated or implied must have a specific azimuth, be constructed and operated in a specific azimuth, and therefore cannot be understood as a limitation of the present disclosure.

[0061] In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first" or "second" may expressly or implicitly include at least one of those features. In the description of the present disclosure, "multiple" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

[0062] In the present disclosure, unless otherwise specified and limited, the terms "mount," "connect," "connect together," "fix" and other terms shall be understood broadly, for example, there may be a fixing connection, a detachable connection, or integrated molding; there may be a mechanical connection or an electrical connection; there may be a direct connection or an indirect connection through an intermediate medium, and there may be a connection within two elements or an interaction between two elements, unless otherwise expressly limited. For ordinary technical people in the art, the specific meaning of the aforementioned terms in the present disclosure can be understood according to the specific circumstances.

[0063] In the present disclosure, unless otherwise expressly provided and defined, the first feature "on" or "under" the second feature may mean that the first feature and the second feature are directly contacted, or the first feature and the second feature are indirectly contacted by an intermediate medium. Also, the first feature is "above", "over" and "on" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher level than the second feature. The first feature being "below", "beneath" and "under" the second feature may mean that the first feature is directly or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

[0064] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or an intervening element may also be present. When an element is considered to be "connected to" another element, it can be directly connected to another element or indirectly connected to another element with a mediating element. The terms "vertical," "horizontal," "up," "down," "left," "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only means of implementation.

Claims

1. A glass antenna, comprising: a glass body; a first feeding portion provided on the glass body; and a first antenna structure provided on the glass body, wherein the first antenna structure comprises a first conductive wire, a second conductive wire, a third conductive wire, a fourth conductive wire, and a fifth conductive wire, an end of the first conductive wire, an end of the second conductive wire, and an end of the third conductive wire are electrically connected to the first feeding portion, the first conductive wire, the second conductive wire, and the third conductive wire are spaced apart from each other in sequence and lengths thereof gradually increase, one end of the fourth conductive wire is electrically connected to a middle portion of the second conductive wire, the other end of the fourth conductive wire extends in a direction towards the first feeding portion, one end of the fifth conductive wire is electrically connected to a middle portion of the third conductive wire, the fifth conductive wire is further electrically connected to the other end of the second conductive wire, and the other end of the fifth conductive wire extends in a direction towards the first feeding portion.

2. The glass antenna according to claim 1, wherein the length of the first conductive wire is in a range from 110mm to 300mm, the length of the second conductive wire is in a range from 300mm to 360mm, the length of the third conductive wire is in a range from 350mm to 650mm, a length of the fourth conductive wire is in a range from 350mm to 650mm, and a length of the fifth conductive wire in a range from 350mm to 650mm.

3. The glass antenna according to claim 1 or 2, further comprising a coupling antenna unit provided on the glass body and coupled and connected to the third conductive wire, the coupling antenna unit comprises a first coupling element and a first grid wire electrically connected to the first coupling element, and the first coupling element and the third conductive wire are spaced apart from each other.

4. The glass antenna according to claim 3, wherein the first grid wire comprises at least two first lateral strips spaced apart from each other in sequence and at least two first longitudinal strips spaced apart from each other in sequence, and the first lateral strips intersect with and are electrically connected to the first longitudinal strips.

5. The glass antenna according to claim 3 or 4, wherein the coupling antenna unit further comprises a second coupling element arranged along an extending direction of the first coupling element, and the second coupling element is spaced apart from the first coupling element, the third conductive wire, and the first feeding portion, respectively.

6. The glass antenna according to any one of claims 3 to 5, further comprising a fog removal heating unit, wherein the fog removal heating unit comprises two buses spaced apart from each other, a plurality of second lateral strips spaced apart from each other in sequence and electrically connected between the two buses, and a third coupling element, an end of the third coupling element is electrically connected to the first feeding portion, and the third coupling element is coupled and connected to one of the buses.

7. The glass antenna according to claim 6, wherein the fog removal heating unit further comprises at least one second longitudinal strip intersecting with and electrically connected to the second horizontal strip.

8. The glass antenna according to any one of claims 1 to 7, further comprising a second feeding portion and a second antenna structure that are provided on the glass body, wherein the second antenna structure comprises a third grid wire, the second feeding portion is electrically connected to the third grid wire, and an edge line of the third grid wire is configured to be spaced apart from a vehicle body sheet metal.

9. The glass antenna according to claim 8, wherein the third grid wire comprises at least four third lateral strips spaced apart from each other and at least three third longitudinal strips spaced apart from each other, the third horizontal strips intersect with and are electrically connected to the third longitudinal strips, a length of the third horizontal strip is in a range from 900mm to 1300mm, and a distance between two adjacent third lateral strips is in a range from 15mm to 21mm.

10. The glass antenna according to claim 8 or 9, further comprising a low-noise amplifier module, a first feeder, and a second feeder, wherein two ends of the first feeder are electrically connected to the low-noise amplifier module and the first feeding portion, respectively, two ends of the second feeder are electrically connected to the low-noise amplifier module and the second feeding portion, respectively, and a length of the first feeder is in a range from 80mm to 110mm.

11. A vehicle, comprising a vehicle body and at least one of the glass antennas according to any one of claims 1 to 10, wherein each glass antenna is correspondingly mounted on the vehicle body.

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