基于模拟退火算法的超宽带天线优化设计  

Optimization Design of Ultra Wideband Antenna Based on Simulated Annealing Algorithm

作　　者：郭彦文 田亚平 霍彩虹 阴锦文 韩亚杰 姚明 GUO Yanwen;TIAN Yaping;HUO Caihong;YIN Jinwen;HAN Yajie;YAO Ming(Jiangsu Normal University School of Kewen,Xuzhou 221132,China)

机构地区：[1]江苏师范大学科文学院,江苏徐州221132

出　　处：《电子质量》2024年第5期43-46,共4页Electronics Quality

基　　金：江苏省大学生创新创业训练计划项目(202313988009Y);教育部产学合作协同育人项目(202102357032);江苏高校“青蓝工程”资助。

摘　　要：天线在无线通信系统中起着重要的作用,超宽带(UWB)天线更是天线设计中的一种重要方式。针对UWB天线,可以通过模拟退火算法对其进行优化设计,该算法在精度和收敛速度方面有着较高的优点,能够优化UWB天线的性能,有效地减小电磁干扰。仿真结果表明:在2.05 GHz处时,S11小于-10 dB;在3.45 GHz时,S11小于-25 dB,在此频带,入射功率将以大于90%的效率被天线进行发射。同时,UWB天线的带宽覆盖基本在2.00~3.50 GHz的频段中,结果基本符合覆盖频段的要求;在2.45 GHz的工作频带中,仿真的增益结果为6.62 dBi,在YZ轴平面增益效果良好。经过模拟退火算法优化后的UWB天线,入射功率有了较大的提升,且符合覆盖频段的要求,信号保真效果良好。Antennas play an important role in wireless communication system,and UWB antenna is an important way in antenna design.For UWB antenna,it can be optimized by simulated annealing algorithm,which has high advantages in accuracy and convergence speed,and can optimize the performance of UWB antennas and effectively reduce electromagnetic interference.The simulation results show that at 2.05 GHz,S11 is less than-10 dB,and at 3.45 GHz,S11 is less than-25 dB.In this frequency band,the incident power will be transmitted by the antenna with an efficiency of more than 90%.At the same time,the bandwidth coverage of UWB antenna is basically in the frequency range of 2.00 GHz to 3.50 GHz,and the results basically meet the requirements of the coverage frequency band.In the operating frequency band of 2.45 GHz,the simulated gain result is 6.62 dBi,and the gain effect in the YZ axis plane is good.After optimized by simulated annealing algorithm,the incident power of UWB antenna has been greatly increased,and it meets the requirement of coverage frequency band,and the signal fidelity is good.

关 键 词：模拟退火算法 超宽带 天线优化 

分 类 号：TN822.8[电子电信—信息与通信工程]