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Antenna part, vehicle-mounted radar and automobile

A component and antenna technology, applied to antenna parts, antennas, resonant antennas, etc., can solve the problems of unusable, large standard waveguide feeder interface, etc., achieve large beam range, improve signal-to-noise ratio, and reduce radar reflection signals Effect

Inactive Publication Date: 2019-03-05
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the size of the standard waveguide feed interface is inversely proportional to the millimeter wave frequency, when the above-mentioned microstrip comb array antenna is applied to a 24GHz vehicle radar, the standard waveguide feed interface used will be too large to be used

Method used

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  • Antenna part, vehicle-mounted radar and automobile
  • Antenna part, vehicle-mounted radar and automobile
  • Antenna part, vehicle-mounted radar and automobile

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Embodiment Construction

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0036] An antenna component, a vehicle radar and a car according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0037] figure 1is a schematic structural diagram of an antenna component according to an embodiment of the present invention.

[0038] Such as figure 1 As shown, the antenna component may include: a dielectric substrate 130, an impedance adjustment component 110 formed on one side of the dielectric substrate 130, an array antenna 120 formed on one side ...

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Abstract

The invention discloses an antenna part, a vehicle-mounted radar and an automobile. The antenna part comprises a dielectric substrate, an impedance adjustment assembly, an array antenna, a wave beam width adjustment assembly and a back grounding plate, wherein the impedance adjustment assembly is formed at one side of the dielectric substrate, the array antenna is formed at one side of the dielectric substrate and is connected with the impedance adjustment assembly, the array antenna comprises at least one microstrip feeding line and a plurality of array patches, the plurality of array patchesare connected with the at least one microstrip feeding line and are divided to two groups, the widths of the two groups of array patches are different, the wave beam width adjustment assembly is formed at one side of the dielectric substrate and is arranged in a circling the array antenna, and the back grounding plate is formed at the other side of the dielectric substrate and covers a part rightbelow the impedance adjustment assembly, the array antenna and the wave beam width adjustment assembly. The impedance adjustment assembly and the array antenna of the antenna part are arranged on thesame surface of the dielectric substrate, the antenna part is easy to adjust to obtain 50-ohm impedance and can be conveniently applied to a 24GHz vehicle-mounted radar, and a large-size standard waveguide feeding interface is not needed to be used.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an antenna component, a vehicle-mounted radar with the antenna component and a vehicle with the vehicle-mounted radar. Background technique [0002] Due to the advantages of low profile and low cost, microstrip antennas are widely used in various vehicle radars. [0003] In the related technology, a microstrip comb array antenna applied in the 77GHz millimeter wave frequency band is proposed. The array antenna is mainly composed of a waveguide microstrip transition part, a comb radiation array antenna and a dielectric substrate. Among them, the waveguide microstrip transition part It is mainly composed of waveguide short-circuit surface, patch unit and WR12 standard waveguide feeding interface, and the patch unit and WR12 standard waveguide feeding interface are on the front of the dielectric substrate, and the comb radiation array antenna is on the back of the dielectric substr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/32H01Q1/48H01Q9/04
CPCH01Q1/3233H01Q1/48H01Q5/335H01Q9/0407H01Q9/045
Inventor 黄忠伟姜波
Owner BYD CO LTD