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A genetic algorithm based optimization system for active frequency selective surface reconfigurable antenna

Abstract

二十一世纪通信和信息技术迅猛发展。当前,智能天线在无线通信技术中的应用越来越广泛。智能天线系统极大的提高了无线通信系统的容量和稳定性,并使得空分多址成为可能,同时又可以大大的降低无线信号对空间的污染。因此,智能天线的发展,已成为无线移动通信技术发展很重要的一个方向。相对于自适应阵列系统来说,利用可重构天线实现的智能天线系统具有明显的成本优势。然而其性能仍有待提高。目前的性能缺点主要有两种:常见的可重构天线的增益较低,且难以实现低零深。在通信应用中较低的增益不利于降低系统功耗,无法实现低零深不利于隔离环境中的干扰源。这两点很大程度限制了可重构天线的进一步发展。 本文基于有源频率选择表面(Act...Twenty-first Century is a much developed era of communication and Information technology. At present, smart antenna is applied more and more widely in the wireless communication technology. They can greatly solve the problem of lack of frequency resources and improve the stability and capacity of the wireless communication system. They realized Space Division Multiple Access, and greatly reduce th...学位:工学硕士院系专业:物理科学与技术学院_电子科学与技术学号:3312013115286

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