Minimizing the Noise Penalty Due to Mutual Coupling for a Receiving Array

被引:81
作者
Warnick, Karl F. [1 ]
Woestenburg, Bert [2 ]
Belostotski, Leonid [3 ]
Russer, Peter [4 ]
机构
[1] Brigham Young Univ, Dept Elect & Comp Engn, Provo, UT 84602 USA
[2] Netherlands Inst Radio Astron, NL-7990 AA Dwingeloo, Netherlands
[3] Univ Calgary, Dept Elect & Comp Engn, Calgary, AB, Canada
[4] Tech Univ Munich, Inst Hochfrequenztech, D-80333 Munich, Germany
基金
美国国家科学基金会;
关键词
Amplifier noise; antenna array mutual coupling; impedance matching; REFLECTOR ANTENNA; OPTIMIZATION; DIRECTIVITY; EFFICIENCY; FEEDS; GAIN;
D O I
10.1109/TAP.2009.2019898
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
For phased array receivers, mutual coupling leads to beam-dependent active impedances which must be taken into account when matching the array ports to front end amplifiers for optimal noise performance. We study the noise penalty for several noise matching conditions and develop a matching condition that minimizes the average beam equivalent receiver noise temperature over multiple beams. For non-beamforming applications such as multiple input multiple output communications, we show that noise performance for coupled arrays can be quantified using the spectrum of an equivalent receiver noise temperature correlation matrix.
引用
收藏
页码:1634 / 1644
页数:11
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