Glass antenna with vehicle

Abstract

This application relates to a glass antenna and a vehicle. The glass antenna includes a glass carrier, a radiating section, and a grounding section. Both the radiating section and the grounding section are disposed on the surface of the glass carrier. The radiating section includes interconnected low-frequency radiating stubs, intermediate-frequency radiating stubs, and high-frequency radiating stubs. The low-frequency radiating stub has a low-frequency radiating edge, a first impedance matching edge, and a second impedance matching edge. The opposite ends of the low-frequency radiating edge are connected to the first impedance matching edge and the second impedance matching edge, respectively. The intermediate-frequency radiating stub has an intermediate-frequency radiating edge, a third impedance matching edge, and a fourth impedance matching edge. The opposite ends of the intermediate-frequency radiating edge are connected to the third impedance matching edge and the fourth impedance matching edge, respectively. Through extensive simulation data research, it has been found that the antenna is less affected by sheet metal interference, and the antenna performance can be guaranteed. The antenna can be placed on the glass carrier at a position far away from the vehicle body or at a position close to the vehicle body sheet metal, which can effectively expand the antenna placement space.

Description

Technical Field

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

[0002] With the rapid development of wireless communication, people have increasingly higher requirements for communication quality. Vehicles, as a daily means of transportation, place higher demands on antennas to achieve better transmission efficiency and signal quality. In related technologies, antennas are fabricated on ordinary dielectric substrates, such as the commonly used FR4 substrate. Several antennas are typically housed in a plastic box, which is then externally mounted in areas such as the vehicle's center console for external communication. However, this placement inside the vehicle means that external communication needs to overcome interference from the in-vehicle environment and glass loss, resulting in poor communication performance. Therefore, some manufacturers print antennas directly on the vehicle window glass to reduce interference from the in-vehicle environment and bring them closer to external communication facilities such as base stations, which is more conducive to communication. However, in actual production applications, to achieve concealment, antennas are generally printed in the black edge area of ​​the window glass. This black edge area is usually close to the vehicle's sheet metal. When the antenna printing position is close to the sheet metal, it will be subject to interference from the sheet metal, leading to a decrease in antenna performance and limiting antenna placement. Summary of the Invention

[0003] Therefore, it is necessary to overcome the shortcomings of existing technologies and provide a glass antenna for vehicles that can reduce sheet metal interference, ensure antenna performance, and expand the antenna layout space.

[0004] A glass antenna includes: a glass carrier, a radiating part, and a grounding part. The radiating part and the grounding part are both disposed on the surface of the glass carrier. The radiating part is electrically connected to the inner conductor of a feed interface, and the grounding part is electrically connected to the outer conductor of the feed interface. The radiating part includes interconnected low-frequency radiating branches, intermediate-frequency radiating branches, and high-frequency radiating branches. The low-frequency radiating branches have low-frequency radiating edges, the intermediate-frequency radiating branches have intermediate-frequency radiating edges, and the high-frequency radiating branches have high-frequency radiating edges. The low-frequency radiating edges, the intermediate-frequency radiating edges, and the high-frequency radiating edges are located on the edge contour of the radiating part. Impedance matching edges are provided between the low-frequency radiating edges and the intermediate-frequency radiating edges, between the intermediate-frequency radiating edges and the high-frequency radiating edges, and between the high-frequency radiating edges and the low-frequency radiating edges.

[0005] In one embodiment, the impedance matching edge includes a first impedance matching edge and a second impedance matching edge disposed on the low-frequency radiation stub, with the opposite ends of the low-frequency radiation edge connected to the first impedance matching edge and the second impedance matching edge, respectively; the impedance matching edge also includes a third impedance matching edge and a fourth impedance matching edge disposed on the mid-frequency radiation stub, with the opposite ends of the mid-frequency radiation edge connected to the third impedance matching edge and the fourth impedance matching edge, respectively, and the first impedance matching edge is also connected to the third impedance matching edge; the impedance matching edge also includes a fifth impedance matching edge disposed on the high-frequency radiation stub, with one end of the high-frequency radiation edge connected to the second impedance matching edge, the other end of the high-frequency radiation edge connected to the fifth impedance matching edge, and the fifth impedance matching edge connected to the fourth impedance matching edge.

[0006] In one embodiment, the intermediate frequency radiation side includes a first intermediate frequency radiation segment and a second intermediate frequency radiation segment connected in series and arranged at an angle; the other end of the first intermediate frequency radiation segment is connected to the third impedance matching side, and the other end of the second intermediate frequency radiation segment is connected to the fourth impedance matching side.

[0007] In one embodiment, the grounding portion includes a first coupling edge that is coupled to the intermediate frequency radiation edge. The first coupling edge includes a first coupling segment and a second coupling segment connected in series and arranged at an angle. The first coupling segment and the first intermediate frequency radiation segment are spaced apart to form capacitive coupling, and the second coupling segment and the second intermediate frequency radiation segment are spaced apart to form capacitive coupling.

[0008] In one embodiment, the first impedance matching side includes a first matching segment and a second matching segment connected in series and arranged at an angle, the other end of the first matching segment is connected to the low-frequency radiation side, and the other end of the second matching segment is connected to the third impedance matching side.

[0009] In one embodiment, the third impedance matching side includes a third matching segment and a fourth matching segment connected in series and arranged at an angle; the other end of the third matching segment is connected to the first impedance matching side, and the other end of the fourth matching segment is connected to the intermediate frequency radiation side; the fourth impedance matching side includes a fifth matching segment, a sixth matching segment, a seventh matching segment, and an eighth matching segment connected in series; the other end of the fifth matching segment is connected to the intermediate frequency radiation side, and the eighth radiation side is connected to the fifth impedance matching side.

[0010] In one embodiment, the fifth impedance matching side includes a ninth matching segment, a tenth matching segment, and an eleventh matching segment connected in series; the other end of the ninth matching segment is connected to the fourth impedance matching side, and the other end of the eleventh matching segment is connected to the high-frequency radiation side.

[0011] In one embodiment, the grounding portion includes a second coupling side that is coupled to the high-frequency radiation stub. The second coupling side includes a third coupling segment and a fourth coupling segment connected in series and arranged at an angle. The third coupling segment and the fifth impedance matching side are spaced apart to form capacitive coupling, and the fourth coupling segment and the high-frequency radiation side are spaced apart to form capacitive coupling.

[0012] In one embodiment, the low-frequency radiating stub is used to receive and / or transmit electromagnetic wave signals in the 700MHz-960MHz frequency band; the mid-frequency radiating stub is used to receive and / or transmit electromagnetic wave signals in the 1710MHz-2690MHz frequency band; and the high-frequency radiating stub is used to receive and / or transmit electromagnetic wave signals in the 3300MHz-4200MHz and 4400MHz-5000MHz frequency bands.

[0013] A vehicle includes the glass antenna and a vehicle body, wherein the glass antenna is disposed on the vehicle body.

[0014] In one embodiment, the vehicle body is provided with sheet metal, and the radiating part is spaced apart from the sheet metal; the distance between the radiating part and the sheet metal is set as S1, S1≥10mm; the sheet metal forms a projection on the glass carrier along a direction perpendicular to the surface of the glass carrier, the low-frequency radiating branch is located outside the area of ​​the projection, and the minimum distance between the low-frequency radiating edge of the low-frequency radiating branch and the projection outline is set as S2, S2≥20mm.

[0015] In the aforementioned glass antenna and vehicle, when the radiating part and the grounding part are located close to the sheet metal on the glass carrier, due to the specific structural shape of the radiating part, it has been found through a large amount of simulation data research that it is less affected by the sheet metal, thus effectively ensuring the performance of the antenna. In this way, the antenna can be placed on the glass carrier at a position far away from the vehicle body, or it can be placed on the glass carrier at a position closer to the sheet metal of the vehicle body, which can effectively expand the antenna layout space. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a glass antenna according to an embodiment of this application.

[0017] Figure 2 for Figure 1 The diagram shown is of a glass antenna structure excluding the feed interface.

[0018] Figure 3 for Figure 2 A magnified view of a portion of the structure shown.

[0019] Figure 4 This is a diagram showing the positional relationship between the glass antenna and the sheet metal according to an embodiment of this application.

[0020] Figure 5 for Figure 4 Another perspective view of the structure shown.

[0021] Figure 6 This is an S11 curve diagram of a glass antenna without sheet metal reinforcement according to an embodiment of this application.

[0022] Figure 7 This is an S11 curve diagram of a glass antenna with sheet metal added according to an embodiment of this application.

[0023] Figure 8 This is a graph comparing the efficiency of a glass antenna with and without sheet metal in one embodiment of this application.

[0024] 10. Glass carrier; 11. First glass plate; 12. Thermoplastic intermediate layer; 13. Second glass plate; 20. Radiating section; 21. Low-frequency radiation branch; 211. Low-frequency radiation edge; 212. First impedance matching edge; 2121. First matching segment; 2122. Second matching segment; 213. Second impedance matching edge; 22. Mid-frequency radiation branch; 221. Mid-frequency radiation edge; 2211. First mid-frequency radiation segment; 2212. Second mid-frequency radiation segment; 222. Third impedance matching edge; 2221. Third matching segment; 2222. Fourth matching segment; 223. Fourth impedance matching edge; 2231. Fifth matching segment ; 2232, Sixth Matching Segment; 2233, Seventh Matching Segment; 2234, Eighth Matching Segment; 23, High-Frequency Radiation Stub; 231, High-Frequency Radiation Edge; 232, Fifth Impedance Matching Edge; 2321, Ninth Matching Segment; 2322, Tenth Matching Segment; 2323, Eleventh Matching Segment; 30, Grounding Part; 31, First Coupling Edge; 311, First Coupling Segment; 312, Second Coupling Segment; 32, Second Coupling Edge; 321, Third Coupling Segment; 322, Fourth Coupling Segment; 33, Sixth Impedance Matching Edge; 331, Twelfth Matching Segment; 332, Thirteenth Matching Segment; 40, Power Supply Interface; 50, Sheet Metal. Detailed Implementation

[0025] 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.

[0026] As described in the background section, in related technologies, when the antenna printing position is close to the vehicle body sheet metal, it will be subject to interference from the sheet metal, resulting in reduced antenna performance and limiting antenna layout. Therefore, this application provides a glass antenna for a vehicle that can reduce sheet metal interference, ensure antenna performance, and expand antenna layout space.

[0027] See Figures 1 to 3 , Figure 1 A structural diagram of a glass antenna according to an embodiment of this application is shown. Figure 2 It shows Figure 1 The diagram shown does not include the structure of the glass antenna with the feed interface 40. Figure 3 It shows Figure 2 A partially enlarged view of the structure shown. One embodiment of this application provides a glass antenna, which includes a glass carrier 10, a radiating part 20, and a grounding part 30. Both the radiating part 20 and the grounding part 30 are disposed on the surface of the glass carrier 10. The radiating part 20 is electrically connected to the inner conductor of the feed interface 40, and the grounding part 30 is electrically connected to the outer conductor of the feed interface 40. The radiating part 20 includes a low-frequency radiating branch 21, a mid-frequency radiating branch 22, and a high-frequency radiating branch 23 that are interconnected. The low-frequency radiating branch 21 has a low-frequency radiating edge 211, the mid-frequency radiating branch 22 has a mid-frequency radiating edge 221, and the high-frequency radiating branch 23 has a high-frequency radiating edge 231. The low-frequency radiation edge 211, the intermediate-frequency radiation edge 221 and the high-frequency radiation edge 231 are located on the edge contour of the radiating part 20. Each of the following is provided with an impedance matching edge: between the low-frequency radiation edge 211 and the intermediate-frequency radiation edge 221, between the intermediate-frequency radiation edge 221 and the high-frequency radiation edge 231 and between the high-frequency radiation edge 231 and the low-frequency radiation edge 211.

[0028] Specifically, the impedance matching edges include a first impedance matching edge 212 and a second impedance matching edge 213 disposed on the low-frequency radiation stub 21. The opposite ends of the low-frequency radiation edge 211 are connected to the first impedance matching edge 212 and the second impedance matching edge 213, respectively. The impedance matching edges also include a third impedance matching edge 222 and a fourth impedance matching edge 223 disposed on the intermediate-frequency radiation stub 22. The opposite ends of the intermediate-frequency radiation edge 221 are connected to the third impedance matching edge 222 and the fourth impedance matching edge 223, respectively. The first impedance matching edge 212 is also connected to the third impedance matching edge 222. The impedance matching edges also include a fifth impedance matching edge 232 disposed on the high-frequency radiation stub 23. One end of the high-frequency radiation edge 231 is connected to the second impedance matching edge 213, and the other end of the high-frequency radiation edge 231 is connected to the fifth impedance matching edge 232. The fifth impedance matching edge 232 is connected to the fourth impedance matching edge 223.

[0029] Please see Figure 4 , Figure 4A diagram showing the positional relationship between the glass antenna and the sheet metal 50 according to an embodiment of this application is provided. Specifically, the glass carrier 10 includes a first glass plate 11, a thermoplastic interlayer 12, and a second glass plate 13, with the thermoplastic interlayer 12 sandwiched between the first glass plate 11 and the second glass plate 13. The first glass plate 11 faces the exterior of the vehicle body, and the second glass plate 13 faces the interior of the vehicle. A radiating portion 20 and a grounding portion 30 are disposed on the side of the second glass plate 13 opposite to the first glass plate 11.

[0030] When the radiating part 20 and the grounding part 30 of the glass antenna are close to the sheet metal 50 on the glass carrier 10, the specific structural shape of the radiating part 20 is found through a large number of simulation data studies to be less affected by the interference of the sheet metal 50, thus effectively ensuring the performance of the antenna. In this way, the antenna can be arranged on the glass carrier 10 at a position far away from the vehicle body, or it can be arranged on the glass carrier 10 at a position closer to the vehicle body sheet metal 50, which can effectively expand the antenna layout space.

[0031] Please see Figures 1 to 3 In one embodiment, the length of the low-frequency radiation edge 211 is set to L1, which is 117mm-123mm. Specifically, the low-frequency radiation edge 211 is, for example, a straight edge. Thus, when the low-frequency radiation edge 211 is in operation, it can receive and / or transmit electromagnetic wave signals in the 700MHz-960MHz frequency band.

[0032] Please see Figures 1 to 3 In one embodiment, the intermediate frequency (IF) radiation edge 221 includes a first IF radiation segment 2211 and a second IF radiation segment 2212 connected in series and arranged at an angle. The other end of the first IF radiation segment 2211 is connected to a third impedance matching edge 222, and the other end of the second IF radiation segment 2212 is connected to a fourth impedance matching edge 223.

[0033] Please see Figures 1 to 3 In one embodiment, the length of the first intermediate frequency (IF) radiation segment 2211 is set to L21, and the length of the second IF radiation segment 2212 is set to L22, where L21 is 19mm-21mm and L22 is 28mm-30mm. Specifically, the first IF radiation segment 2211 and the second IF radiation segment 2212 are each, for example, set as straight edges. Thus, when the IF radiation edge 221 is in operation, it can receive and / or transmit electromagnetic wave signals in the 1710MHz-2690MHz frequency band.

[0034] Please see Figures 1 to 3In one embodiment, the grounding portion 30 includes a first coupling edge 31 coupled to the intermediate frequency (IF) radiating edge 221. The first coupling edge 31 includes a first coupling segment 311 and a second coupling segment 312 connected in series and arranged at an angle. The first coupling segment 311 and the first IF radiating segment 2211 are spaced apart to form capacitive coupling, and the second coupling segment 312 and the second IF radiating segment 2212 are spaced apart to form capacitive coupling. Thus, the coupling effect between the first coupling edge 31 and the IF radiating edge 221 extends the IF bandwidth of the antenna, so the antenna can achieve a bandwidth of nearly 1 GHz between the IF frequencies of 1710 MHz and 2690 MHz.

[0035] Please see Figures 1 to 3 Specifically, the first intermediate frequency radiation segment 2211 and the second intermediate frequency radiation segment 2212 are arranged perpendicularly to each other. The first coupling segment 311 and the second coupling segment 312 are arranged perpendicularly to each other.

[0036] Please see Figures 1 to 3 In one embodiment, the length of the first coupling segment 311 is set to L31, and the length of the second coupling segment 312 is set to L32, where L31 is 11mm-15mm and L32 is 34.5mm-36.5mm. Specifically, the first coupling segment 311 and the second coupling segment 312 are each, for example, set as straight edges.

[0037] Please see Figures 1 to 3 In one embodiment, the length of the high-frequency radiating edge 231 is set to L4, which is 16.5mm-18.5mm. Specifically, the high-frequency radiating edge 231 is, for example, a straight edge. Thus, when the high-frequency radiating edge 231 is in operation, it can receive and / or transmit electromagnetic wave signals in the 3300MHz-4200MHz and 4400MHz-5000MHz frequency bands.

[0038] Please see Figures 1 to 3 In one embodiment, the first impedance matching side 212 includes a first matching segment 2121 and a second matching segment 2122 connected in series and arranged at an angle. The other end of the first matching segment 2121 is connected to the low-frequency radiation side 211, and the other end of the second matching segment 2122 is connected to the third impedance matching side 222.

[0039] Please see Figures 1 to 3 Specifically, the first matching segment 2121 and the second matching segment 2122 are arranged perpendicularly to each other. The first matching segment 2121 is also perpendicular to the low-frequency radiation edge 211. The low-frequency radiation edge 211 is also perpendicular to the second impedance matching edge 213.

[0040] Please see Figures 1 to 3In one embodiment, the length of the first matching segment 2121 is set to L11, the length of the second matching segment 2122 is set to L12, and the length of the second impedance matching side 213 is set to L13. L11 is 18mm-22mm, L12 is 34mm-36mm, and L13 is 7mm-9mm.

[0041] Please see Figures 1 to 3 In one embodiment, the third impedance matching edge 222 includes a third matching segment 2221 and a fourth matching segment 2222 connected in series and arranged at an angle. The other end of the third matching segment 2221 is connected to the first impedance matching edge 212, and the other end of the fourth matching segment 2222 is connected to the intermediate frequency radiation edge 221. The fourth impedance matching edge 223 includes a fifth matching segment 2231, a sixth matching segment 2232, a seventh matching segment 2233, and an eighth matching segment 2234 connected in series. The other end of the fifth matching segment 2231 is connected to the intermediate frequency radiation edge 221, and the eighth radiation edge is connected to the fifth impedance matching edge 222.

[0042] Please see Figures 1 to 3 Specifically, the third matching segment 2221 is perpendicular to the fourth matching segment 2222, and the fourth matching segment 2222 is perpendicular to the first intermediate frequency radiation segment 2211. Furthermore, the fifth matching segment 2231 is perpendicular to the second intermediate frequency radiation segment 2212, and also perpendicular to the sixth matching segment 2232. The sixth matching segment 2232 is perpendicular to the seventh matching segment 2233, the seventh matching segment 2233 is perpendicular to the eighth matching segment 2234, and the eighth matching segment 2234 is perpendicular to the fifth impedance matching side 232.

[0043] Please see Figures 1 to 3 In one embodiment, the length of the third matching segment 2221 is set to L23, the length of the fourth matching segment 2222 is set to L24, the length of the fifth matching segment 2231 is set to L25, the length of the sixth matching segment 2232 is set to L26, the length of the seventh matching segment 2233 is set to L27, and the length of the eighth matching segment 2234 is set to L28; L23 is 18mm-22mm, L24 is 51mm-53mm, L25 is 7mm-9mm, L26 is 5mm-7mm, L27 is 1.5mm-2.5mm, and L28 is 3.5mm-5.5mm.

[0044] Please see Figures 1 to 3 In one embodiment, the fifth impedance matching edge 232 includes a ninth matching segment 2321, a tenth matching segment 2322, and an eleventh matching segment 2323 connected in series. The other end of the ninth matching segment 2321 is connected to the fourth impedance matching edge 223, and the other end of the eleventh matching segment 2323 is connected to the high-frequency radiation edge 231.

[0045] Specifically, the ninth matching segment 2321 is perpendicular to the eighth matching segment 2234 and the tenth matching segment 2322, respectively, and the eleventh matching segment 2323 is perpendicular to the tenth matching segment 2322 and the high-frequency radiation edge 231, respectively.

[0046] Please see Figures 1 to 3 In one embodiment, the length of the ninth matching segment 2321 is set to L41, the length of the tenth matching segment 2322 is set to L42, and the length of the eleventh matching segment 2323 is set to L43; L41 is 13.5mm-15.5mm, L42 is 10mm-12mm, and L43 is 2.5mm-4.5mm.

[0047] Please see Figures 1 to 3 In one embodiment, the grounding portion 30 includes a second coupling edge 32 coupled to the high-frequency radiation stub 23. The second coupling edge 32 includes a third coupling segment 321 and a fourth coupling segment 322 connected in series and arranged at an angle. The third coupling segment 321 and the fifth impedance matching edge 232 are spaced apart to form capacitive coupling, and the fourth coupling segment 322 and the high-frequency radiation edge 231 are spaced apart to form capacitive coupling.

[0048] Specifically, the third coupling segment 321 and the fourth coupling segment 322 are arranged perpendicularly to each other. In addition, the third coupling segment 321 is connected to the second coupling segment 312 and is arranged perpendicularly to each other.

[0049] In addition, the grounding portion 30 also includes a sixth impedance matching edge 33. The sixth impedance matching edge 33 is connected to the first coupling segment 311 and the fourth coupling segment 322 respectively. Specifically, the sixth impedance matching edge 33 includes a twelfth matching segment 331 and a thirteenth matching segment 332 connected in series and arranged at an angle. The other end of the twelfth matching segment 331 is connected to the first coupling segment 311 and is arranged perpendicular to each other, and the other end of the thirteenth matching segment 332 is connected to the fourth coupling segment 322 and is arranged perpendicular to each other.

[0050] In one embodiment, the length of the third coupling segment 321 is set to L33, and the length of the fourth coupling segment 322 is set to L34, where L33 is 13mm-17mm and L34 is 5mm-7mm. Specifically, the third coupling segment 321 and the fourth coupling segment 322 are each, for example, set as straight edges.

[0051] In one embodiment, the length of the twelfth matching segment 331 is set to L35, and the length of the thirteenth matching segment 332 is set to L36. L35 is 39.5mm-43.5mm, and L36 is 27mm-29mm. Specifically, the twelfth matching segment 331 and the thirteenth matching segment 332 are each, for example, set as straight edges.

[0052] In one embodiment, the low-frequency radiating stub 21 is used to receive and / or transmit electromagnetic wave signals in the 700MHz-960MHz frequency band. The intermediate-frequency radiating stub 22 is used to receive and / or transmit electromagnetic wave signals in the 1710MHz-2690MHz frequency band. The high-frequency radiating stub 23 is used to receive and / or transmit electromagnetic wave signals in the 3300MHz-4200MHz and 4400MHz-5000MHz frequency bands.

[0053] Please see Figures 1 to 3 In one embodiment, a vehicle includes a glass antenna of any of the above embodiments, and also includes a vehicle body, wherein the glass antenna is disposed on the vehicle body.

[0054] In the aforementioned vehicle, when the radiating part 20 and the grounding part 30 are located close to the sheet metal 50 on the glass carrier 10, due to the specific structural shape of the radiating part 20, it has been found through a large amount of simulation data research that it is less affected by the sheet metal 50, thus effectively ensuring the performance of the antenna. In this way, the antenna can be placed on the glass carrier 10 at a position far away from the vehicle body, or it can be placed on the glass carrier 10 at a position closer to the sheet metal 50 of the vehicle body, which can effectively expand the antenna layout space.

[0055] Please see Figure 4 and Figure 5 , Figure 4 A diagram showing the positional relationship between the glass antenna and the sheet metal 50 according to an embodiment of this application is provided. Figure 5 It shows Figure 4 Another perspective view of the structure shown. In one embodiment, a sheet metal 50 is provided on the vehicle body, and a radiating part 20 is spaced apart from the sheet metal 50. The distance between the radiating part 20 and the sheet metal 50 is set as S1, where S1 ≥ 10 mm. The sheet metal 50 forms a projection on the glass carrier 10 along a direction perpendicular to the surface of the glass carrier 10. The low-frequency radiating branch 21 is located outside the projection area. The minimum distance between the low-frequency radiating edge 211 of the low-frequency radiating branch 21 and the projection outline is set as S2, where S2 ≥ 20 mm. In this way, by reasonably limiting the distance between the sheet metal 50 and the antenna, the interference of the sheet metal 50 can be reduced, thereby effectively ensuring the performance of the antenna. Thus, the antenna can be placed on the glass carrier 10 at a position far away from the vehicle body, or it can be placed on the glass carrier 10 at a position closer to the sheet metal 50 of the vehicle body, which can effectively expand the antenna layout space.

[0056] Please see Figures 6 to 8 , Figure 6 The diagram shows the S11 curve of a glass antenna without sheet metal 50 according to an embodiment of this application. Figure 7 The diagram shows the S11 curve of a glass antenna with sheet metal 50 according to an embodiment of this application, where S1 is 10mm and S2 is 20mm. Figure 8The diagram shows a comparison of the efficiency of a glass antenna with and without sheet metal 50 according to an embodiment of this application. Figure 6 and Figure 7 As can be seen from the data, S11 in each frequency band is less than -8dB.

[0057] In addition, according to Figure 8 A table comparing the average efficiency of each frequency band with and without sheet metal reinforcement can be obtained:

[0058] 700-960 65 62 1710-2690 65 61 3300-4200 61 60 4400-5000 61 60

[0059] The table shows that the difference in average antenna efficiency between the antenna with and without sheet metal reinforcement is within 4% across the four frequency bands: 700MHz-960MHz, 1710MHz-2690MHz, 3300MHz-4200MHz, and 4400MHz-5000MHz, indicating a certain degree of resistance to sheet metal interference. Furthermore, the table shows that the average efficiency of the antenna across its operating frequency bands is >60%, demonstrating high radiation efficiency.

[0060] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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.

[0061] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0062] 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 based on the specific circumstances.

[0063] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0064] It should be noted that if 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. If 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. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0065] 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.

[0066] 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.

Claims

1. A glass antenna, characterized by, The glass antenna includes: The device comprises a glass carrier, a radiating section, and a grounding section. The radiating section and the grounding section are both disposed on the surface of the glass carrier. The radiating section is used for electrical connection with the inner conductor of the power supply interface, and the grounding section is used for electrical connection with the outer conductor of the power supply interface. The radiating section includes interconnected low-frequency radiating branches, intermediate-frequency radiating branches, and high-frequency radiating branches. The low-frequency radiating branches have low-frequency radiating edges, the intermediate-frequency radiating branches have intermediate-frequency radiating edges, and the high-frequency radiating branches have high-frequency radiating edges. The low-frequency radiating edges, the intermediate-frequency radiating edges, and the high-frequency radiating edges are located on the edge contour of the radiating section. Impedance matching edges are provided between the low-frequency radiating edges and the intermediate-frequency radiating edges, between the intermediate-frequency radiating edges and the high-frequency radiating edges, and between the high-frequency radiating edges and the low-frequency radiating edges.

2. The glass antenna of claim 1, wherein, The impedance matching edge includes a first impedance matching edge and a second impedance matching edge disposed on the low-frequency radiation stub, with the opposite ends of the low-frequency radiation edge connected to the first impedance matching edge and the second impedance matching edge, respectively. The impedance matching edge also includes a third impedance matching edge and a fourth impedance matching edge disposed on the mid-frequency radiation stub, with the opposite ends of the mid-frequency radiation edge connected to the third impedance matching edge and the fourth impedance matching edge, respectively. The first impedance matching edge is also connected to the third impedance matching edge. The impedance matching edge also includes a fifth impedance matching edge disposed on the high-frequency radiation stub, with one end of the high-frequency radiation edge connected to the second impedance matching edge, the other end of the high-frequency radiation edge connected to the fifth impedance matching edge, and the fifth impedance matching edge connected to the fourth impedance matching edge.

3. The glass antenna of claim 2, wherein, The intermediate frequency radiation side includes a first intermediate frequency radiation segment and a second intermediate frequency radiation segment connected in series and arranged at an angle; the other end of the first intermediate frequency radiation segment is connected to the third impedance matching side, and the other end of the second intermediate frequency radiation segment is connected to the fourth impedance matching side.

4. The glass antenna of claim 3, wherein, The grounding portion includes a first coupling edge that is coupled to the intermediate frequency radiation edge. The first coupling edge includes a first coupling segment and a second coupling segment connected in series and arranged at an angle. The first coupling segment and the first intermediate frequency radiation segment are spaced apart to form capacitive coupling, and the second coupling segment and the second intermediate frequency radiation segment are spaced apart to form capacitive coupling.

5. The glass antenna according to claim 2, characterized in that, The first impedance matching side includes a first matching segment and a second matching segment connected in series and arranged at an angle. The other end of the first matching segment is connected to the low-frequency radiation side, and the other end of the second matching segment is connected to the third impedance matching side.

6. The glass antenna of claim 2, wherein, The third impedance matching side includes a third matching segment and a fourth matching segment connected in series and arranged at an angle; the other end of the third matching segment is connected to the first impedance matching side, and the other end of the fourth matching segment is connected to the intermediate frequency radiation side; the fourth impedance matching side includes a fifth matching segment, a sixth matching segment, a seventh matching segment, and an eighth matching segment connected in series; the other end of the fifth matching segment is connected to the intermediate frequency radiation side, and the eighth matching segment is connected to the fifth impedance matching side.

7. The glass antenna of claim 2, wherein, The fifth impedance matching side includes a ninth matching segment, a tenth matching segment, and an eleventh matching segment connected in series; the other end of the ninth matching segment is connected to the fourth impedance matching side, and the other end of the eleventh matching segment is connected to the high-frequency radiation side.

8. The glass antenna of claim 2, wherein, The grounding portion includes a second coupling side that is coupled to the high-frequency radiation stub. The second coupling side includes a third coupling segment and a fourth coupling segment connected in series and arranged at an angle. The third coupling segment and the fifth impedance matching side are spaced apart to form capacitive coupling, and the fourth coupling segment and the high-frequency radiation side are spaced apart to form capacitive coupling.

9. The glass antenna according to any one of claims 1 to 8, characterized in that, The low-frequency radiating stub is used to receive and / or transmit electromagnetic wave signals in the 700MHz-960MHz frequency band; the mid-frequency radiating stub is used to receive and / or transmit electromagnetic wave signals in the 1710MHz-2690MHz frequency band; and the high-frequency radiating stub is used to receive and / or transmit electromagnetic wave signals in the 3300MHz-4200MHz and 4400MHz-5000MHz frequency bands.

10. A vehicle characterized by comprising: The device includes a glass antenna as described in any one of claims 1 to 9, and also includes a vehicle body, wherein the glass antenna is disposed on the vehicle body.

11. The vehicle of claim 10, wherein, The vehicle body is provided with sheet metal, and the radiating part is spaced apart from the sheet metal; the distance between the radiating part and the sheet metal is set as S1, S1≥10mm; the sheet metal forms a projection on the glass carrier along a direction perpendicular to the surface of the glass carrier, the low-frequency radiating branch is located outside the area of ​​the projection, and the minimum distance between the low-frequency radiating edge of the low-frequency radiating branch and the projection outline is set as S2, S2≥20mm.

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