The analysis of medium sized arrays of complex elements using a combination of FDTD and reaction matching
The analysis of medium sized arrays of complex elements using a combination of FDTD and reaction matching
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结合 FDTD 和反应匹配对中等尺寸的复杂元素阵列进行分析
DOI：
10.1109/euma.1997.337792
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
G. Hilton
中科院分区：
文献类型：
--
作者：
C. Railton;G. Hilton
用全波数值模拟技术分析复杂天线单元的中型阵列，往往需要不切实际的计算机能力。然而，必须考虑元件之间的所有相互耦合。在这方面的贡献，提出了一种技术，其中的单个元素的特点是使用FDTD方法，并使用这提供的信息，整个阵列的行为预测使用的方法的基础上反应匹配。使用这种方法的结果进行了比较，测量和使用一个完整的全波分析的三个和五个元件阵列的印刷偶极子得到的结果，并被证明是在良好的协议。对于10到50个元素之间的阵列，可以节省几个数量级的计算机时间，此外，阵列几何形状的变化并不总是需要重新计算所有结果。
The analysis of medium sized arrays of complex antenna elements by means of a full-wave numerical modelling technique often requires impractical amounts of computer power. Nevertheless, it is essential that all the mutual couplings between elements are taken into account. In this contribution, a technique is presented in which the individual element is characterised using the FDTD method and, using the information this provides, the behaviour of the complete array is predicted using a method based on reaction matching. Results using this method are compared to measurement and to results obtained using a complete full-wave analysis for three and five element arrays of printed dipoles and are shown to be in good agreement. For arrays of between 10 and 50 elements, savings in computer time of several orders of magnitude can be achieved and, in addition, changes in array geometry do not always necessitate all the results being recalculated.