摘要
为了给天线阵列提供必要的保护,同时尽可能降低对天线阵列的方向图、增益的影响,文中提出了基于复合材料的天线罩设计。在A夹层结构的基础上,将芯层设计成蜂窝周期性结构,并利用等效电磁参数分析来实现介质材料的介电常数的规律性改变,进而调控天线罩的透射系数。在雷达天线罩电磁性能的优化过程中,将遗传算法和等效传输线理论相结合来得到使蜂窝介质平板的透波性能最优的介电常数,提高天线罩综合性能。通过仿真实验对所提方法进行了验证,仿真结果证明了该方法的正确性。
In order to provide the necessary protection for the antenna array while minimizing the influence on the pattern and gain of the antenna array,this paper proposes a radome design based on composite materials. Based on the A-sandwich structure,the core layer is designed as a honeycomb periodic structure,and the equivalent electromagnetic parameter analysis is used to realize the regularity change of the dielectric constant of the dielectric material,and then the transmission coefficient of the radome is adjusted. In the process of optimizing the electromagnetic performance of the radome,the genetic algorithm and the equivalent transmission line theory are combined to obtain the dielectric constant that optimizes the wave transmission performance of the honeycomb dielectric plate,and the overall performance of the radome is improved. The method is verified by simulation and the correctness of the method is proved.
作者
佟文清
TONG Wen qing(Theth Research Institute China Electronic Science and Technology Group Corporation Hefei 230088,China)
出处
《电子设计工程》
2020年第4期23-27,共5页
Electronic Design Engineering
