提出了用于车载雷达传感器频段的45°线极化平行四边形网格阵列天线和梳状阵列天线.这两种天线增益高、尺寸小、结构新颖.测试结果表明:平行四边形网格阵列天线的尺寸为40mm×40mm×0.787mm,带宽为8.2%,增益为14dBi;梳状网格阵列天线的尺寸为164mm×20mm×0.787mm,带宽为8.4%,增益为17.63dBi.
A parallelogram grid array antenna and a comb array antenna with 45° linearly polarized for automotive radar sensors were introduced.These two antennas have high gains,small sizes and novel structures.The measured results show that the parallelogram grid array antenna was with a size of 40 mm×40 mm×0.787 mm,achieved 8.12% impedance bandwidth and 14 dBi gain.Comb array antenna with a size of 164 mm×20 mm×0.787 mm,attained 8.4% impedance bandwidth and 17.63 dBi gain.