Genetic design of dual-band, switched-beam dipole arrays, with elements failure correction, retaining constant excitation coefficients

被引:19
作者
Mitilineos, S. A.
Thomopoulos, S. C. A.
Capsalis, C. N.
机构
[1] Natl Tech Univ Athens, Dept Elect & Comp Engn, Div Informat Transmiss Syst & Mat Technol, Athens 15773, Greece
[2] Natl Ctr Sci Res Demokritos, Inst Informat & Telecommun, Athens 15310, Greece
关键词
D O I
10.1163/156939306779322738
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
Switched-beam dipole arrays (SBAs) are widely used in order to increase system performance in wireless communications. They represent an attractive alternative to fully adaptive arrays, due to lower deployment and maintenance costs. Dual-band operation and elements failure correction are dealt with in this paper, since they are considered to be key characteristics in modern systems, like WiFi/WiMAX, and remote base stations maintenance respectively. The focus of the presented work is on the preservation of constant excitation coefficients during dual-band operation (coefficients will change after a possible elements failure), but the possibility of retaining universal, constant excitations, even after element failures, is also examined (the term universal means that excitations are kept constant, regardless of element failure or frequency of operation). This is accomplished using a genetic algorithm (GA), and numerical results are presented which demonstrate the eligibility of the proposed technique.
引用
收藏
页码:1925 / 1942
页数:18
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