Smart antennas for wireless communications
Smart antennas for wireless communications
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DOI：
10.1109/aps.2001.959392
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发表时间：
2001-07
期刊：
影响因子：
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通讯作者：
S. Bellofiore;J. Foutz;C. Balanis;A. Spanias
中科院分区：
文献类型：
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作者：
S. Bellofiore;J. Foutz;C. Balanis;A. Spanias
在过去的十年中，在使用智能天线的无线通信中，对提高系统容量和增加覆盖区域的兴趣日益增长。智能天线技术正被考虑用于诸如汽车、蜂窝电话（移动的单元）和膝上型计算机的移动的平台。本文介绍了一种智能天线的设计沿着与相关的信号处理算法，用于下一代20 GHz的无线通信系统。这里介绍的结果是一个更广泛的项目，认为这种天线系统的可重构宽带（高速）网络的背景下的一部分。本文仅集中在天线设计和波束形成和到达方向（DOA）的有效的自适应算法的发展。目的是设计一种自适应天线，该天线将天线方向图的最大辐射指向感兴趣的信号（SOI），并将零点指向不感兴趣的信号（SNOI）。所提出的天线设计和相关的波束成形算法考虑到互耦以获得更高的精度。
Over the last decade, there has been a growing interest in improving system capacity and increasing coverage area in wireless communications using smart antennas. Smart antenna technology is being considered for mobile platforms such as automobiles, cellular telephones (mobile unit), and laptops. This paper presents the design of a smart antenna along with the associated signal processing algorithms for use in the next generation 20 GHz wireless communications systems. The results presented here are part of a broader project that considers this antenna system in the context of reconfigurable broadband (high-speed) networks. This paper concentrates only on the antenna design and on the development of efficient adaptive algorithms for beamforming and direction-of-arrival (DOA). The objective is to design an adaptive antenna that directs the maximum radiation of the antenna pattern toward the signal-of-interest (SOI), and places nulls toward the signal-not-of-interest (SNOI). The proposed antenna design and associated beamforming algorithms take into account mutual coupling for greater accuracy.