基于三周期极小曲面的龙伯透镜设计
Design of Luneburg lens based on triply-period minimal surface
高羡明 1杨存磊 1赵逸飞 1卢少辉 1张跃2
作者信息
- 1. 陕西科技大学机电工程学院,陕西 西安 710021
- 2. 西安交通大学机械工程学院,陕西西安 710049
- 折叠
摘要
基于三周期极小曲面多孔结构设计并采用3D打印技术制造了一种工作在X波段的龙伯透镜天线.首先,对I-WP型三周期极小曲面进行多孔结构的连续化梯度建模;然后,通过HFSS仿真软件获得不同体积分数的多孔结构的S参数,并基于S参数反演法得到不同体积分数的等效介电常数并对两者的结果进行拟合;最后,建立10 mm的离散梯度单元,得到了所需的梯度变化介电常数.根据以上分析设计了实际直径180 mm的龙伯透镜,通过CST仿真软件得到龙伯透镜天线的性能参数,与实测数据基本吻合.
Abstract
In this article,based on the triply-period minimal surface's porous structure,the Luneburg lens antenna operating in the X-band is manufactured by means of the 3D printing technology.Firstly,the continuous gradient modeling of porous struc-ture is conducted on the I-WP triply-period minimal surface.Secondly,the S-parameters of porous structures with different vol-ume fractions are worked out with the help of the HFSS simulation software;the S-parameter inversion method is used to identify the equivalent permittivity of different volume fractions;then,these results are fitted.Finally,a 10 mm-discrete gradient element is set up to obtain the desired gradient variation dielectric constant.On this basis,efforts are made to design the 180 mm-diameter Luneburg lens,and the CST simulation software is used to work out the Luneburg lens antenna's performance parameters,which are basically consistent with the measured data.
关键词
三周期极小曲面/连续梯度多孔结构/S参数反演法/梯度介电常数/龙伯透镜Key words
triply-period minimal surface/continuous gradient porous structure/S-parameter inversion method/gradient permittivity/Luneburg lens引用本文复制引用
出版年
2024
NETL
NSTL
万方数据