文章基本信息

标题：A Design Methodology for Miniaturized Fractal Slot RFID Antennas Using Particle Swarm Optimization
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作者：D. K. Naji ; J. S. Aziz ; R. S. Fyath 等
期刊名称：Journal of Emerging Trends in Computing and Information Sciences
电子版ISSN：2079-8407
出版年度：2013
卷号：4
期号：5
页码：477-489
出版社：ARPN Publishers
摘要：An optimization-based methodology for the design of miniaturized microstrip-fed fractal slot RFID antenna is introduced. This methodology gives an automated process for generation of antenna geometrical parameters and mainly associated with Particle Swarm Optimization (PSO). Two software programs are used in parallel, and in a coupled synchronized fashion. The first one is the electromagnetic simulator CST Microwave Studio which gives instantaneous estimation of the antenna performance. The second is MATLAB which is used to run the PSO algorithm in order to optimize the geometry of the antenna after considering two objective functions: return loss and antenna size. The design methodology is applied to a third-order Minkowski fractal antenna which is optimized using two different approaches, the direct one which is based on the conventional (non-fractal) antenna, and the sequential one which is based on the optimized previous-order fractal antennas. The simulated results show excellent performance requirements with less than -40 dB of return loss, stable gain and radiation pattern, and more than 90% reduction in overall size in comparison with the conventional reference antenna.
关键词：Minkowski fractal; microstrip slot antenna; particle swarm optimization; sequential and direct optimization.