24GHz automobile radar array antenna
The invention discloses a 24GHz automobile radar array antenna. The automobile radar array antenna comprises a conductive pattern layer on the upper layer, a dielectric layer in the middle layer and conductor ground on the bottom layer; the conductive pattern layer comprises a feed network and four...
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Main Authors | , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
02.02.2018
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a 24GHz automobile radar array antenna. The automobile radar array antenna comprises a conductive pattern layer on the upper layer, a dielectric layer in the middle layer and conductor ground on the bottom layer; the conductive pattern layer comprises a feed network and four SIR unit linear arrays, wherein the feed network consists of three one-into-two power distributors and three pairs of microstrip line impedance conversion networks; each single SIR linear array comprises four pairs of symmetrical step impedance microstrip lines; and four multi-stage step impedance microstrip line array units form the antenna array. The automobile radar array antenna can be applied to the current automobile anti-collision radar driving system, so that automobile driving safety performance is improved, and traffic accidents are reduced; and the array antenna adopts the multi-stage step impedance microstrip line structure, and is high in gain, narrow in wave beam, simple in structure and low in cost. |
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Bibliography: | Application Number: CN20171830642 |