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International Journal of Antennas and Propagation
Volume 2014 (2014), Article ID 630529, 11 pages
http://dx.doi.org/10.1155/2014/630529
Research Article

Synthesis of Phase-Only Reconfigurable Linear Arrays Using Multiobjective Invasive Weed Optimization Based on Decomposition

1National Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi’an 710071, China
2School of Electronics and Information, Northwestern Polytechnical University, Xi’an 710072, China
3School of Information Science and Engineering, Shandong Normal University, Jinan 250014, China

Received 24 April 2014; Revised 25 August 2014; Accepted 26 August 2014; Published 20 October 2014

Academic Editor: Stefano Selleri

Copyright © 2014 Yan Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Synthesis of phase-only reconfigurable array aims at finding a common amplitude distribution and different phase distributions for the array to form different patterns. In this paper, the synthesis problem is formulated as a multiobjective optimization problem and solved by a new proposed algorithm MOEA/D-IWO. First, novel strategies are introduced in invasive weed optimization (IWO) to make original IWO fit for solving multiobjective optimization problems; then, the modified IWO is integrated into the framework of the recently well proved competitive multiobjective optimization algorithm MOEA/D to form a new competitive MOEA/D-IWO algorithm. At last, two sets of experiments are carried out to illustrate the effectiveness of MOEA/D-IWO. In addition, MOEA/D-IWO is compared with MOEA/D-DE, a new version of MOEA/D. The comparing results show the superiority of MOEA/D-IWO and indicate its potential for solving the antenna array synthesis problems.