摘要
利用理论分析和计算机仿真相结合的方法,对三种常用的二维均匀天线阵列(方阵、圆阵、L阵)的空间方向特性进行了深入的理论和仿真实验研究.推导出了三种二维阵列结构的空间方向分辨率的工程近似计算公式,并得到了它们之间的关系;分析了阵元间的互耦对空间方向分辨率的影响,得出了互耦对空间方向分辨率没有影响或影响很小的结论,并对该结论进行了解释;对由工程近似计算得到的空间方向分辨率和计算机仿真得到的实际的空间方向分辨率进行了比较,指出了工程近似计算公式的局限性.
The spatial directional resolution （SDR） of the 2-D regular arrays （square array, circle array, L array） was investigated in this paper by means of theoretical analyses and computer simulations. The approximate formulas for calculating the SDRs were deduced, and the relation among the SDRs of those arrays was obtained; then the effect of the mutual coupling on the SDRs was analyzed, the analysis result is that mutual coupling has no or small effect on the SDRs and the explanation for the result was also given; finally, the SDRs that were attained by use of computer simulations and approximate formulas were compared.
出处
《测试技术学报》
EI
2005年第4期388-393,共6页
Journal of Test and Measurement Technology
关键词
二维阵列
空间方向分辨率
互耦
阵列模式
互耦阻抗矩阵
2-D arrays
spatial directional resolution
mutual coupling
array pattern
mutual impedence matrix
