一款77GHz防撞雷达天线设计与仿真

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中图分类号：TN820 文献标志码：A 文章编号：2095-2945（2025）27-0038-04

Abstract： Aiming at the millimeter wave band，a 77GHz anti-collision radar antenna is designed by using three - dimensionalelectromagneticsimulationsoftwareCOMSOLMultiphysics.Theproposedantennausestheseries-paralelfeed network，achievingthehighergainandlowersideloedlevelbyformingthearayThesimulationresultsshowthattheoperating frequencybandofthe77GHzanti-colisionradarantennacovers76.35～7.76GHz.Underthepremiseofachievinghighgainof 22.2 dBi，the sidelobe level is kept 15 dB lower than the main lobe level，and the beamwidth is 9.57∘×20.2∘ .The antenna basically meets the design requirements of vehicle radar antenna for high gain and low sidelobe level.

Keywords：77GHzcolisionavoidanceradarantenna;milimeterwave;microstrippatchantenna;highgain;lowsidelobelevel

汽车雷达概念首次于20世纪60年代提出，在随后的十年里，各大信息技术公司和汽车公司相继投入到汽车雷达技术的研究中[2-4。（剩余5153字）