CN-121983775-A - Antenna structure, glass assembly and vehicle

Abstract

The application provides an antenna structure, a glass assembly and a vehicle. The antenna structure comprises a substrate, a first feed part and an antenna main body, wherein the first feed part is arranged on the substrate, the antenna main body is arranged on the substrate and is configured to work in a target frequency band, the frequency of the target frequency band is smaller than 1GHz, the antenna main body comprises a first antenna unit, the first antenna unit comprises a first antenna and a second antenna, the first antenna is connected with the first feed part, the second antenna is arranged and coupled with at least part of the first antenna at intervals, the first antenna and the second antenna work in the first frequency band in a matched mode, in the first frequency band, the first antenna mainly works in a high-frequency part of the first frequency band when being excited, and the second antenna mainly works in an intermediate-frequency part and/or a low-frequency part of the first frequency band when being excited through the first antenna. The second antenna widens the bandwidth of the first antenna unit, so that the number of the antennas can be reduced, the whole first antenna unit is more compact, and the area of the first antenna unit is reduced.

Inventors

• ZHOU SHENG
• YOU DAIBO
• PENG SHIQIANG
• WU TENG
• SU YUE
• WANG LINGFEI

Assignees

• 福耀玻璃工业集团股份有限公司

Dates

Publication Date

20260505

Application Date

20260310

Claims (14)

1. 1. An antenna structure for a portable electronic device, the antenna structure comprising, characterized by comprising the following steps: A substrate; a first power supply part arranged on the substrate, and The antenna body is arranged on the substrate and is configured to work in a target frequency band, and the frequencies of the target frequency band are all smaller than 1GHz; The antenna main body comprises a first antenna unit, the first antenna unit comprises a first antenna and a second antenna, the first antenna is connected with the first feed part, the second antenna is arranged and coupled with at least part of the first antenna at intervals, and the first antenna and the second antenna work in a first frequency band in a matching way; Wherein in the first frequency band, the first antenna mainly works in a high-frequency part of the first frequency band when being excited, and the second antenna mainly works in an intermediate-frequency part and/or a low-frequency part of the first frequency band when being excited through the first antenna.
2. 2. The antenna structure of claim 1, wherein the first antenna is further configured to operate in a second frequency band having a frequency greater than the frequency of the first frequency band.
3. 3. The antenna structure of claim 2, wherein the first antenna comprises a first stub and a second stub connected, the first stub extending in a lateral direction of the substrate and the second stub extending in a longitudinal direction of the substrate, a ratio of a length of the first stub to a length of the second stub ranging from 1:1.5 to 1:0.5, and/or, The second antenna comprises a third branch and a fourth branch which are connected, the third branch extends along the transverse direction of the substrate, the fourth branch extends along the longitudinal direction of the substrate, and the ratio of the length of the third branch to the length of the fourth branch ranges from 1:4 to 1:2.
4. 4. The antenna structure according to claim 1, characterized in that the first antenna and the second antenna are arranged extending in parallel on the substrate and/or that the distance between the first antenna and the second antenna is 5-20 mm.
5. 5. The antenna structure according to claim 1, wherein the first antenna unit further comprises a third antenna, the third antenna is connected to the first feeding portion, the third antenna is configured to operate in a third frequency band, the frequency of the third frequency band is smaller than the frequency of the first frequency band, and the third antenna is disposed on a side of the first antenna opposite to the second antenna.
6. 6. The antenna structure according to claim 5, wherein the third antenna comprises a transverse branch and a longitudinal branch which are connected in an angle, the number of the transverse branch and the number of the longitudinal branch are at least one, and the total length of the transverse branch is greater than or equal to 100mm.
7. 7. The antenna structure according to any one of claims 1-6, characterized in that the antenna structure further comprises a second feed portion arranged close to the first feed portion, the antenna body further comprises a second antenna element comprising a fourth antenna connected to the second feed portion; At least part of the second antenna element surrounds the first antenna element and/or at least part of the first antenna element surrounds the second antenna element.
8. 8. The antenna structure of claim 7, wherein the fourth antenna is configured to operate at least in a fourth frequency band having a frequency less than the frequency of the first frequency band.
9. 9. The antenna structure according to claim 1, wherein the substrate is a laminated glass, the substrate includes a first glass, a second glass, and a bonding layer that are laminated, the first glass includes a first face and a second face that are opposite, the second glass includes a third face and a fourth face that are opposite, the second face of the first glass and the third face of the second glass are connected by the bonding layer, the antenna body is located between the bonding layer and the second face, or between the bonding layer and the third face, or within the bonding layer, and/or the antenna body is made of enameled wire or fine metal wire.
10. 10. The antenna structure of claim 9, wherein the length of the second antenna is calculated from a first formula when the antenna body is disposed within the adhesive layer, wherein the first formula is L = f 0 x 1+ ; Wherein L is the length of the second antenna, a is a correction coefficient, the range of the correction coefficient a is 0.8-0.9, Is the relative dielectric constant of the glass and, T g is the thickness of glass, t p is the thickness of the adhesive layer, and f 0 is the resonant frequency of the second antenna.
11. 11. A glass assembly, comprising; The antenna structure of any of claims 1-10, the substrate being glass.
12. 12. The glass assembly of claim 11, wherein the number of antenna bodies is two, and at least a portion of the two antenna bodies are mirror-symmetrically disposed on the substrate.
13. 13. The glass assembly of claim 11, comprising a shielding layer disposed on a surface of the substrate, wherein a maximum distance between a projection of the antenna body on a plane in which the shielding layer is disposed and a side of the shielding layer away from an edge of the substrate is less than or equal to 90mm.
14. 14. A vehicle, characterized by comprising: A vehicle body and a glass assembly according to any of claims 11-13, said glass assembly being provided on said vehicle body.

Description

Antenna structure, glass assembly and vehicle Technical Field The application relates to the technical field of antennas, in particular to an antenna structure, a glass assembly and a vehicle. Background With the rapid development of the automobile industry, the requirements for vehicle-mounted wireless communication of automobiles are also increasing. The antenna on the existing market can be printed on back windshield, side window glass or front windshield, various choices are provided for the arrangement of the antenna, but the printed antenna is generally made of opaque silver paste materials, and certain vehicle types on the market cannot be printed with good performance due to factors such as small glass area, wherein a plurality of antennas are required to be arranged to correspond to received signals when receiving broadcast signals in a plurality of frequency bands, so that the antenna area is large, a part of visible area of the glass is shielded, and the driving experience of a user is influenced. Disclosure of Invention The embodiment of the application provides an antenna structure, a glass assembly and a vehicle, which can solve at least part of the technical problems. In a first aspect, the present application provides an antenna structure comprising: A substrate; a first power supply part arranged on the substrate, and The antenna body is arranged on the substrate and is configured to work in a target frequency band, and the frequencies of the target frequency band are all smaller than 1GHz; The antenna main body comprises a first antenna unit, the first antenna unit comprises a first antenna and a second antenna, the first antenna is connected with the first feed part, the second antenna is arranged and coupled with at least part of the first antenna at intervals, and the first antenna and the second antenna work in a first frequency band in a matching way; Wherein in the first frequency band, the first antenna mainly works in a high-frequency part of the first frequency band when being excited, and the second antenna mainly works in an intermediate-frequency part and/or a low-frequency part of the first frequency band when being excited through the first antenna. In some possible embodiments of the first aspect, the first antenna is further configured to operate in a second frequency band, the second frequency band having a frequency greater than the frequency of the first frequency band. In some possible embodiments of the first aspect, the first antenna comprises a first branch and a second branch connected, the first branch extending in a lateral direction of the substrate, the second branch extending in a longitudinal direction of the substrate, a ratio of a length of the first branch to a length of the second branch ranging from 1:1.5 to 1:0.5, and/or, The second antenna comprises a third branch and a fourth branch which are connected, the third branch extends along the transverse direction of the substrate, the fourth branch extends along the longitudinal direction of the substrate, and the ratio of the length of the third branch to the length of the fourth branch ranges from 1:4 to 1:2. In some possible embodiments of the first aspect, the first antenna and the second antenna are arranged in parallel extending on the substrate, and/or a separation distance between the first antenna and the second antenna is 5mm-20mm. In some possible embodiments of the first aspect, the first antenna unit further includes a third antenna, the third antenna is connected to the first feeding portion, the third antenna is configured to operate in a third frequency band, a frequency of the third frequency band is smaller than a frequency of the first frequency band, and the third antenna is disposed on a side of the first antenna opposite to the second antenna. In some possible embodiments of the first aspect, the third antenna includes a transverse branch and a longitudinal branch connected at an included angle, the number of the transverse branch and the number of the longitudinal branch are at least one, and a total length of the transverse branch is greater than or equal to 100mm. In some possible embodiments of the first aspect, the antenna structure further comprises a second feeding portion, the second feeding portion being disposed close to the first feeding portion, the antenna body further comprising a second antenna element, the second antenna element comprising a fourth antenna, the fourth antenna being connected to the second feeding portion; At least part of the second antenna element surrounds the first antenna element and/or at least part of the first antenna element surrounds the second antenna element. In some possible embodiments of the first aspect, the fourth antenna is configured to operate at least in a fourth frequency band, the fourth frequency band having a frequency that is less than the frequency of the first frequency band. In some possible embodiments of the first aspect, t