强耦合阵列中匹配网络设计及对天线性能影响

摘要

To study matching network impact on the receiving state performance, in the state of strong coupling emitter array composed of electrically small antenna, the analysis based upon the network scattering parameters is presented according to network features of transceiver antenna, and the correlation coefficient under different termination conditions is given. Theoretical and computational results show that the matching network in the launching and receiving state has a certain commonality and meanwhile that the network termination has the obvious effect on antenna diversity performance. The theory and method for the study of strong coupling array characteristics provide convenience and conditions, and also provides strong guidance meaning in project implementation and application.%为研究强耦合阵列匹配网络对收发状态下性能影响以及评估该匹配网络在两种状态下的通用性，以网络散射理论为基础，分别在发射和接收耦合天线框架内讨论了该网络参数对阵列性能的影响，并给出了网络不同端接负载条件下的相关函数。理论和计算表明：对于强耦合组成的发射阵列，其匹配网络在收发状态下具有一定通用性；网络负载对天线分集性能具有明显的作用。文章中的理论和方法为研究强耦合阵列特性提供了便利和条件，也为工程实施和应用提供了较强的指导意义。