Combination-Optimization Method for Ultra-Wide Band TEM Horn Antenna Array Using Micro-Genetic Algorithm
Finite-difference time-domain method (FDTD) and micro-genetic algorithm (MGA) are combined to optimize time-domain ultra-wide band (UWB) transverse electromagnetic (TEM) horn antenna array. Firstly,FDTD was applied to obtain the time-domain information of elementary antenna. According to principle of superposition,the antenna array could be primarily optimized using MGA without regard to mutual coupling effect. Secondly,the whole antenna array was simulated by FDTD. The first optimal results then acted as the known knowledge to reduce the searching range of MGA and the antenna array was optimized for the second time. Hence,the optimization speed can be greatly accelerated by using combination-optimization method described above while mutual coupling effect is taken into account. As an example,a 4-element UWB planar TEM horn antenna array was optimized to show the validity. The results confirmed it and the computational time decreased by 48.6％.
Yan-Ming Qin Cheng Liao Tao Wei Jun Li
Institute of Electromagnetics,Southwest Jiaotong University superfoxqym 163.com.cn Chengdu 610031 China
国际会议
2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)
南京
英文
739-742
2008-04-21（万方平台首次上网日期，不代表论文的发表时间）