基于自适应信号处理算法的智能天线互耦影响研究

2018 International Conference on Applied Electromagnetics, Signal Processing and Communication (AESPC) Pub Date : 2018-10-01 DOI:10.1109/AESPC44649.2018.9033283

Manisha Mishra, J. S. Roy

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引用次数: 1

摘要

自适应波束形成是近年来最精细的方法之一，它由可靠的信号处理单元支持，在动态蜂窝环境中产生所需方向的波束模式。本文讨论了各向同性单元线性天线阵智能天线波束形成过程中相互耦合的影响。采用自适应信号处理最小均方(LMS)算法，通过改变元间距，研究了互耦对期望波束方向(BD)、半功率波束宽度(HPBW)、最大旁瓣电平(SLLmax)等阵列参数的影响。当元件间距(d)较低时，相互耦合的影响更为显著，从而导致所需的光束方向发生明显的偏移。在d<0.3λ以下，HPBW的变化会影响阵列天线的方向性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Investigations on the Effect of Mutual Coupling in Smart Antenna Using Adaptive Signal Processing Algorithm

Adaptive beamforming is one of the most refined approaches in the recent times backed by a creditable signal processing unit to generate beam patterns in the desired direction in a dynamic cellular environment. The paper alludes to the effect of mutual coupling in the beamforming of a smart antenna of linear antenna array of isotropic elements. The effect of mutual coupling on the array parameters, like, desired beam direction (BD), half power beamwidth (HPBW), maximum side lobe level (SLLmax) are investigated by varying the inter-element spacing using adaptive signal processing least mean square (LMS) algorithm. The effect of mutual coupling is more dominate for lower inter-element spacing (d) causing the desired beam direction to shift by appreciable degrees. Below d<0.3λ, HPBW changes affecting the directivity of the array antenna.

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2018 International Conference on Applied Electromagnetics, Signal Processing and Communication (AESPC)

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