Anti-collision 77GHz millimeter wave radar antenna for automobile

Abstract

The invention relates to an anti-collision radar antenna for an automobile, in particular to an anti-collision 77GHz millimeter wave radar antenna for the automobile, and belongs to the technical field of radar. A way of combining an antenna and lenses is adopted. The radar antenna consists of a lens support plate, a microwave circuit support plate, a plurality of dielectric lenses, a transmission antenna, a plurality of receiving antennae and corresponding wireless transmission and reception control modules, wherein the wireless transmission and reception control module integrates a transmission control module and a reception control module; the transmission antenna is a single wide-beam antenna; the reception antenna is a multi-beam antenna formed by adopting a plurality of narrow beam antennae; the beamforming of the transmission antenna and the receiving antennae is realized by adopting the dielectric lenses; the dielectric lenses are independently hanged on the lens support plate; and the transmission antenna and the receiving antennae are all arranged on the microwave circuit support plate. The anti-collision 77GHz millimeter wave radar antenna for the automobile has a flexible design and a simple structure, ensures system stability, sensitivity and accuracy and can realize the highly-accurate angle measurement and rapid switching of the receiving antennae.

Description

technical field [0001] The invention relates to an automobile anti-collision radar antenna, in particular to a 77GHz millimeter-wave automobile anti-collision radar antenna, which belongs to the technical field of radar. Background technique [0002] The research on automobile active anti-collision control technology has been widely valued and has become the mainstream technology in the research and development of automobile anti-collision system in recent years. Active safety driving auxiliary devices such as the active anti-collision control system of automobiles can significantly reduce the driver's burden and judgment errors, and will play an important role in improving traffic safety, reducing the incidence of vicious traffic accidents, and reducing the loss of life and property. NHTSA's research results show that the anti-collision warning system can reduce rear-end collision accidents by an average of 51%, and traffic accidents caused by changing lanes by an average o...

AI Technical Summary

Problems solved by technology

This antenna device improves the ground potential of the antenna amplifier on the printed circuit board, reduces the absorption of high-frequency signals by the roof, and increases the receiving effect of the amplifier. The antenna proposed in this patent is simple and convenient to implement, but its application range is narrow , which cannot meet the automobile anti-collision requirements under the current high-speed operating conditions

Insufficient signal extraction is a more serious problem when the frequency of the RF transmission signal reaches 77GHz

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