摘要
频率可重构天线可以在宽频带或者超宽频带范围内改变频率而以近似相同的方向图进行工作,这对当前许多移动通信系统天线的小型化具有重要意义。介绍了免疫算法的机理,通过将1个简单的矩形微带贴片天线划分成若干小的贴片元,并应用免疫算法优化求解响应于需求的最合适的二进制序列(对应就是小贴片的存在与否的情况)来控制天线的可重构特性,设计出了1种可以在8～17GHz范围内实现频率捷变的天线可重构方案,使天线在很宽频率范围内能够实现了多频或双频可重构。
Frequency reconfigurable antenna can change the frequency in a wide or ultra wide band but worked with nearly the same pattern,and this has important meaning to the antenna miniaturization of current mobile communication systems.Firstly,we described the mechanism of immune algorithm.And then,by dividing a simple rectangular micro-strip patch antenna into several small patches and using immune algorithm to solve the most appropriate binary sequence（the existence of small patch or not） which is response to demand,we controlled the reconfigurable features of antenna,designed a antenna which can achieve frequency agility within the range of 8—17 GHz,and made the antenna realized multi-band or dual-band reconfigurable in a very wide frequency range.
出处
《电子测量技术》
2011年第11期14-18,共5页
Electronic Measurement Technology
基金
国家重点基础研究发展(973)计划资助(2007CB310605)
关键词
天线可重构
免疫算法
频率捷变
antenna reconfigurable
immune algorithm
frequency agility
