Mutual coupling effect on thermal noise in multi-antenna wireless communication systems

被引：0
|
作者：
Krusevac, Snezana [1 ]
Rapajic, Predrag B. [1 ]
Kennedy, Rodney A. [1 ]
Sadeghi, Parastoo [1 ]
机构：
[1] Univ New S Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia
来源：
6th Australian Communications Theory Workshop 2005, Proceedings | 2005年
关键词：
mutual coupling; thermal noise; multiantenna; system;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This paper presents a framework for the thermal noise analysis of mutually-coupled antennae in the multi-antenna system. The electromagnetic coupling for thermal noise is included in the analysis of the multi-antenna system with small antenna element spacings. The method for thermal noise power calculation for the multi-antenna system with coupled antennae is presented. The thermal noise behavior in the multi-antenna system is determined by applying the Nyquist's thermal noise theorem. The partial correlation of thermal noise for antenna spacing lower then a wavelength is confirmed. The signal-to-noise ratio (SNR) for the closely spaced antennae in the multi-antenna system is then estimated, using presented method for thermal noise analysis. Simulation results confirm that as the antenna spacing decreases to zero, the multi-antenna system starts to act like a single antenna system.
引用
收藏
页码：209 / 214
页数：6
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