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International Journal of Antennas and Propagation
Volume 2015, Article ID 971646, 9 pages
http://dx.doi.org/10.1155/2015/971646
Research Article

Optimization and Design of Wideband Antenna Based on Factor

1Hefei Electronic Engineering Institute, 460 Huangshan Road, Hefei, Anhui 230037, China
2Shengli Oilfield Company, SINOPEC, 483 Xisi Road, Dongying, Shandong 257051, China

Received 3 September 2015; Revised 5 November 2015; Accepted 9 November 2015

Academic Editor: Miguel Ferrando Bataller

Copyright © 2015 Han 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

A wideband antenna is designed based on factor in this paper. Firstly, the volume-surface integral equations (VSIEs) and self-adaptive differential evolution algorithm (DEA) are introduced as the basic theories to optimize antennas. Secondly, we study the computation of of arbitrary shaped structures, aiming at designing an antenna with maximum bandwidth by minimizing the of the antenna. This method is much more efficient for only values at specific frequency points that are computed, which avoids optimizing bandwidth directly. Thirdly, an integrated method combining the above method with VSIEs and self-adaptive DEA is employed to optimize the wideband antenna, extending its bandwidth from 11.5~16.5 GHz to 7~20 GHz. Lastly, the optimized antenna is fabricated and measured. The measured results are consistent with the simulated results, demonstrating the feasibility and effectiveness of the proposed method.