Determination of the phase center position and delay of a Vivaldi antenna

IEICE Electronics Express

Hai Liu¹  Motoyuki Sato¹ 

[1] Center for Northeast Asian Studies, Tohoku University

关键词: ultra-wideband (UWB) radar;    Vivaldi antenna;    phase center;    time delay;    calibration;   

DOI  :  10.1587/elex.10.20130573

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(14)Cited-By(1)We propose a new method for the antenna phase center determination based on measurement. The phase center position and the delay of wave propagation through a Vivaldi antenna are estimated from the measured arrival-time of a multi-offset transmission signal. The estimated phase center position agrees well with that determined by a numerical simulation. The estimated delay has also been validated to have a good accuracy by a laboratory experiment. Then we demonstrate that the accuracy of the range distance estimation by a radar system using a Vivaldi antenna can greatly be improved by considering the phase center position.

【 授权许可】

Unknown