High Efficiency and Small Antenna with Horn and Lens for 77 GHz Automotive Radar

被引：0
|
作者：
Kuriyama, Akira [1 ]
Nagaishi, Hideyuki [1 ]
Kuroda, Hiroshi [2 ]
Kitayama, Akira [2 ]
Sasaki, Satoshi [2 ]
机构：
[1] Hitachi Ltd, Res & Dev Grp, Ctr Technol Innovat Elect, Kokubunji, Tokyo 1858601, Japan
[2] Hitachi Automot Syst Ltd, Adv Dev Ctr, Hitachinaka, Ibaraki 3128503, Japan
来源：
2018 18TH INTERNATIONAL SYMPOSIUM ON ANTENNA TECHNOLOGY AND APPLIED ELECTROMAGNETICS (ANTEM 2018) | 2018年
关键词：
77 GHz long range radar; pyramidal horn and dielectric lens antenna; antenna efficiency;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An antenna with a pyramidal horn and a dielectric lens was investigated to reduce a size of long-range automotive radars in the 77-GHz band. By employing an array with two horns and lenses where a diameter of the lens was half of whole output-aperture length, a height of the antenna was reduced while keeping an antenna efficiency high. The fabricated antenna with commercially available materials had the height of 14 mm and achieved the antenna efficiency of 45.6% and a frequency bandwidth of 5 GHz where reflection coefficient S11 was below -10 dB. The antenna had a fiat beam whose 3-dB beamwidth was 4.5 degrees in elevation and 15 degrees in azimuth, meaning that the antenna can he used for long range radar with a single beam.
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页数：2
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