基于耦合度数据源量化的多天线布局评估
Evaluation of Multiple Antennas System Based on Quantifying Data
Source of Coupling
摘要 根据多天线系统耦合度数据源的特点,建立了耦合模型和相关矩阵。首先对天线对分频段作频率加权,经过矩阵变换及天线对加权得到各方案的综合耦合度,再对系统电磁兼容评估中的耦合度数据源进行量化。通过运算得出不同方案在不同频点和不同天线对的耦合度综合性能,在此基础上提出了三种不同的权重准则:均衡准则,分频段均衡准则和重要电台排序准则。根据实际通信任务要求,采取用不同的量化准则对重要频点和重要天线对进行优化控制,符合现实生活和生产实践。
关键词 电磁兼容; 耦合度; 评估; 数据源; 量化
Abstract According to the characteristics of the data source in the multi-antenna system
correlation matrix and model of coupling are established.First of all,the weight vectors
of coupling parameters are introduced to achieve a comprehensive quantity through
some necessary matrix transformation. And data source of coupling is quantified when
evaluating of electromagnetic compatibility in the system, before obtaining the
comprehensive coupling of various scheme via weight vector of antenna. Then,with the
help of the weight vector, comprehensive performance of different schemes with
diverse antennas in different frequencies can be achieved. Three different weighting
criteria are proposed: uniform criterion, segment-frequency uniform criterion and
importance-ranking criterion of broadcasting station. These criteria can be used to
optimize and control the important frequency and momentous antenna on the basis of
the practical mission, which is consistent with real life.
Keywords EMC; coupling; evaluation; data source; quantify
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