摘要
设计端射天线阵时,使用汉森伍德条件会提高方向性。如果阵列单元数目较少,则单元间距根据汉森伍德条件也相应较小。但较小的单元间距在实际天线阵设计中会增大天线单元之间的耦合,降低了天线阵的整体性能。重新推导了天线阵方向图公式,提出了一种新馈电相位关系的端射阵。既满足端射阵的相位要求,形成增强方向性端射,又拉大了间距降低单元之间的互耦,比普通端射阵提高了阵列的方向性。
In this paper,a new kind of end-fire antenna array is designed.If the number of end-fire array elements is small,elements should be also close to each other depending on Hansen-Woodyard condition.But less spacing increases the coupling between antenna elements and affects the overall performance of antenna array.Antenna array pattern formula was re-derived,and we designed a new phase relationship.The directivity of new end-fire array is higher than ordinary ones and the coupling is lower than Hansen-Woodyard array.
出处
《电波科学学报》
EI
CSCD
北大核心
2010年第3期538-542,609,共6页
Chinese Journal of Radio Science
关键词
新型端射阵
汉森伍德端射阵
方向性
互耦
new end-fire array
Hansen-Woodyard array
directivity
coupling
