结构参数对结构功能一体化天线电性能的影响分析

发布时间：2018-01-05 07:22

本文关键词：结构参数对结构功能一体化天线电性能的影响分析　出处：《西安电子科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：结构功能一体化天线能够将天线集成到武器装备平台中,它既是具有力学承载的结构件又是具有电磁收发功能的天线,在航空航天领域具有重要的应用价值。本文主要针对高频段的结构功能一体化天线,研究制造缺陷和结构变形对其电性能影响。首先,建立了Ka频段的圆极化贴片天线有限元分析模型,并且分析天线罩对天线阵增益的影响关系;其次,对于微带线翘曲和同轴线错位这两种缺陷,运用保角变换和反射系数等效模型方法,研究了微带线翘曲变形和同轴线错位对其自身特性阻抗和传输特性的影响机理;在此基础之上针对同轴线错位问题,基于支持向量机回归算法,建立了同轴线错位的混合模型,为同轴线错位的优化设计奠定了基础;最后,研究了结构功能一体化天线的力电耦合问题,分析了机载服役载荷引起的结构变形对天线辐射特性的影响规律。
[Abstract]:The structure and function of the integrated antenna antennas can be integrated into the weapon platform, it is not only has the structure mechanical bearing parts and the antenna with electromagnetic transceiver function, which has important application value in the field of aerospace. The main structure and function for high frequency integrated antenna research, manufacturing defects and structural deformation effect on the electric performance at first, a circularly polarized patch antenna with the finite element analysis model of the Ka band, and analyze the impact on the relationship between antenna gain antenna cover; secondly, for the two kinds of defects of microstrip line and coaxial warping displacement, using conformal transformation and reflection coefficient of equivalent model method, studied the mechanism of warping deformation of microstrip line and the same axis misalignment influence on its characteristic impedance and transmission characteristics; based on the same axis dislocation problem algorithm based on support vector machine regression, built with Mixed models of axis misalignment, laid the foundation for the optimization design of coaxial line dislocation; finally, study the power coupling problem of integrated structure and function of the antenna, influence on the radiation characteristics of the antenna structure deformation caused by airborne service loads were analyzed.

【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN820

【相似文献】