A Stochastic Beamforming Algorithm for ESPAR Antennas

被引：25

作者：

Barousis, Vlasis ^{[1
]}

Kanatas, Athanasios G. ^{[1
]}

Kalis, Antonis ^{[2
]}

Papadias, Constantinos ^{[2
]}

机构：

[1] Univ Piraeus, Dept Technol Educ & Digital Syst, GR-18534 Piraeus, Greece

[2] Athens Informat Technol, Paiania Attika 19002, Greece

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2008年 / 7卷

关键词：

Antenna arrays; beamforming; electronically steerable passive array radiator (ESPAR) antennas; feedback systems; multiple-input-multiple-output (MIMO) systems; optimization algorithms;

D O I：

10.1109/LAWP.2008.2004783

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：

Beamforming capabilities of ESPAR antenna structures have attracted considerable attention in recent literature. In this letter, we consider a different beamforming approach, presenting an efficient optimization algorithm which enables such antennas to create desired transmit radiation patterns in real time, rather than patterns aiming at signal to interference ratio maximization. The proposed algorithm may be used in any beamforming, diversity or multiuser system. In order to demonstrate the algorithm's efficiency, we investigate a scenario with mobile handsets equipped with ESPAR antennas, considering a beamspace multiple input-multiple output architecture. It is shown that the algorithm may enforce even cost and size sensitive devices to efficiently operate in closed loop communication environments.

引用

页码：745 / 748

页数：4

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