Effect of the leakage between elements on the measured capacity of indoor multiple-input multiple-output channels
Effect of the leakage between elements on the measured capacity of indoor multiple-input multiple-output channels
复制标题
元件间泄漏对室内多输入多输出通道测量容量的影响
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
M. Faulkner
中科院分区：
文献类型：
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作者：
Ying Tan;M. Faulkner
在多天线系统中，射频开关通常用来测量各个路径的分布。天线单元之间的泄漏和其他耦合会导致信道容量估计精度的恶化。该分析是为了给出射频信道测量系统的泄漏电平的最大容限的量度。泄漏会导致对信道容量的低估，该估计会随着元素的数量而增加。在4/SPL倍/4天线系统中，如果泄漏小于-15分贝，则低估值可以忽略不计。信道的相关性越强，泄漏的影响越小。该结果也可用于指示实际系统的接收器之间的设计隔离要求。
RF switches are often used to measure individual path profiles in a multiple-antenna system. Leakage and other coupling between the antenna elements can cause deterioration of the channel capacity estimation accuracy. The analysis is performed to give a measure of the maximum tolerance for the leakage level of RF channel measurement systems. Leakage causes an underestimate of channel capacity that increases with the number of elements. The underestimate is negligible if leakage is less than -15 dB in a 4/spl times/4 antenna system The more correlated the channels are, the less the effect of leakage. The result can also be used to indicate the design isolation requirements between receivers of a real system.