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A view of the input reflection coefficient of the N-port network model for MIMO antennas

机译:MIMO天线N端口网络模型的输入反射系数视图

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The analysis of MIMO and other multiport antennas requires measurement of their efficiency, as well as other parameters. The total efficiency, as seen by each port, includes the impedance mismatch, i.e., input reflection coefficient, and this must be considered in a multiport context. The input reflection coefficient of a loaded N-port network can be derived with Mason's rule and a signal flow graph. However, when N is larger than 3, this method becomes complicated. The approach presented in this paper is a matrix method which gives an insightful general expression for the input reflection coefficient for any N. The result is consistent with known results and the Mason's rule. The makeup of the resulting formulation shows how the input reflection coefficient is impacted by the various scattering parameters of the multiport antenna and the load reflection coefficients at the other ports.
机译:MIMO和其他多端口天线的分析需要测量其效率以及其他参数。从每个端口看到的总效率包括阻抗失配,即输入反射系数,这必须在多端口环境中加以考虑。可以使用梅森法则和信号流图得出负载的N端口网络的输入反射系数。但是,当N大于3时,该方法变得复杂。本文提出的方法是一种矩阵方法,该方法为任何N的输入反射系数提供了有见地的一般表达式。结果与已知结果和梅森法则一致。所得公式的组成显示了输入反射系数如何受到多端口天线的各种散射参数以及其他端口处的负载反射系数的影响。

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