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Radar system

A radar system and radar signal technology, applied in the field of radar systems, can solve the problems of increasing the overall size of the radar system, reducing the sensitivity and range of the radar system, and reducing sensitivity

Pending Publication Date: 2021-01-29
APTIV TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this will increase the overall size of the radar system and thus result in additional costs
[0006] The additional noise level caused by the radome may reduce the sensitivity and range of the radar system
Automotive radar sensors may falsely detect weaker targets, such as pedestrians or motorcycles, at reduced range due to reduced sensitivity

Method used

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Examples

Experimental program
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Embodiment Construction

[0056] Figure 1A A simplified illustration of a radar system 11 according to the background art is depicted. The radar system 11 comprises a radome 1 which is a flat plate made of plastic. The radar system 11 also includes a printed circuit board 3 on which a transmitting element or transmitting antenna array 4 and a receiving element or receiving antenna array 5 are mounted. The radome 1 is positioned on top of the printed circuit board 3 to cover the transmit antenna array 4 and the receive antenna array 5 and protect them from environmental influences such as dust, moisture etc.

[0057] The transmitting antenna 4 transmits a radar signal, and a part of the radar signal may be reflected multiple times at the upper and lower surfaces of the radome 1 and also at the surface of the printed circuit board 3 . Thus, coupling paths between one of the transmitting antennas 4 and some of the receiving antennas 5 can be generated (as indicated by the arrows). Therefore, a part of ...

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PUM

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Abstract

A radar system comprises a transmitting element adapted to transmit a radar signal, a receiving element adapted to receive a reflected signal of the radar signal being transmitted by the transmittingelement, and a radome covering the transmitting element and the receiving element and having an inner surface and an outer surface. The inner surface of the radome faces the transmitting element and the receiving element. The radome comprises a recess being located at the inner surface.

Description

technical field [0001] The present disclosure relates to a radar system comprising at least one transmitting element, at least one receiving element and a radome. Background technique [0002] A radar system may comprise a device called a radome, which is placed as a cover in front of the antenna of the radar system to protect the antenna from the environment, ie as protection against dust, moisture, etc. Typically, such a radome is a flat structure above the antennas of the radar system in order to maintain the same electrical length for the transmission at the angle of incidence of all antennas of the radar system. [0003] However, a radome may lead to undesired mutual coupling between the transmitting antenna and the receiving antenna of the radar system when the transmitting antenna or the antenna array comprises a large range of radiation angles. For a substrate-integrated waveguide antenna, such an angular range may be, for example, 180°. This coupling is due to ene...

Claims

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Application Information

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IPC IPC(8): G01S13/02G01S7/02
CPCG01S13/02G01S7/02H01Q1/525H01Q1/42H01Q1/3233G01S7/282G01S7/285G01S7/4008G01S13/003
Inventor A·塔莱A·萨姆拉克L·罗贝托
Owner APTIV TECH LTD