Direction of arrival estimating array antenna
Direction of arrival estimating array antenna
复制标题
到达方向估计阵列天线
DOI：
--
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
I. Toyoda
中科院分区：
文献类型：
--
作者：
H. Sakai;E. Nishiyama;I. Toyoda
本文提出了一种新的基于相位单脉冲机制的DOA估计系统阵列天线。所提出的阵列天线由贴片元件和包括Magic-T电路的双向馈线电路组成。在DOA估计中，通过接收到的信号在两对贴片单元上的和与差得到到达角。该阵列天线利用和与差的功率比来估计到达角，这可以通过简单的Magic-T电路得到。介绍了采用该阵列天线的DOA估计系统的工作原理。本文还讨论了该天线的特性。
In this paper, a novel array antenna for DOA estimation systems using a phase mono pulse mechanism is proposed. The proposed array antenna consists of patch elements and a both-sided feed line circuit including Magic-T circuits. In the DOA estimation, the arrival angle is obtained by sum and difference of received signals on two pairs of patch elements. The proposed array antenna estimates arrival angle by taking the power ratio of the sum and difference which are easily obtained using the simple Magic-T circuit. The principle of the DOA estimation system using the propose array antenna is described. The characteristics of the proposed antenna are also discussed.