电波科学学报2024，Vol.39Issue(2)：262-270,9.DOI:10.12265/j.cjors.2023113
基于等效电路的反射型双波段线-圆极化转换器快速设计方法
Fast design method of reflective dual-band line-circular polarization converter based on equivalent circuit
摘要
Abstract
For the application requirements of satellite communication high frequency band,high efficiency and polarization mode of satellite communication,this paper designs a reflective dual-band line-circular polarization converter.In this paper,we establish equivalent circuit model based on transmission line theory,and introduce regulatory factors to make numerical corrections to the geometric parameters of the polarization converter to make the model with high accuracy.In this paper,the particle swarm optimization(PSO)method is adopted to design a reflective polarization converter which can realize dual band and bipolarization conversion function in K/Ka band satellite communication.After numerical analysis and simulation analysis concluded that the polarization converter can realize left-handed circular polarization(LHCP)in receive channel(19.2-21.2 GHz),in transmit channel(29.2-30.8 GHz)implements right-hand circularly polarization(RHCP)and reduces the axis ratio(AR)below 3 dB in the maximum incidence angle of range ∆θ =45°(θmin =0°,θmax =45°).In addition,compared with the full-wave electromagnetic simulation technology and machine learning method,the equivalent circuit model proposed in this paper greatly reduces the time cost and significantly improves the design efficiency of the polarization converter.关键词
超表面/等效电路/极化转换/双极化/机器学习Key words
meta surface/equivalent circuit/polarization conversion/bipolarization/machine learning分类
信息技术与安全科学引用本文复制引用
吴数鑫,张清河,沈钊阳,杨利霞..基于等效电路的反射型双波段线-圆极化转换器快速设计方法[J].电波科学学报,2024,39(2):262-270,9.基金项目
国家自然科学基金(61771008) （61771008）
