电波科学学报2018，Vol.33Issue(1)：71-76,6.DOI:10.13443/j.cjors.2017060501
电磁窗桁架阻挡比对天线口径场影响分析
Influence of MSF radome blocking rate on antenna aperture
摘要
Abstract
Based on the theory of induced current rate, a method of calculating the relative shading rate combined the shielding area with the aperture field distribution is proposed. The problem of the inhomogeneity of the incident field in the traditional algorithm is modified. And the scattering of the metal bar in the electromagnetic window is analyzed. The effect of the grid shading rate on the antenna transmission characteristics under the aperture distribution of a specific antenna is discussed. The insertion loss of the planar array is calculated. The results are compared with the method of moments (MOM) simulation results using the FEKO software. The results show that the relative blocking algorithm improves the accuracy greatly with the maximum error less than 0. 1 dB compared with the traditional algorithm. The insertion loss of the electromagnetic window is not only affected by the shielding area and the induced current rate, but also by the aperture field energy flow density distribution. Reducing the relative blocking rate is an effective way to design the low-loss radome.关键词
平面电磁窗/金属空间桁架/感应电流率/阻挡比/口径场Key words
planar radome/metal space frame/induced current rate/blocking rate/aperture field分类
信息技术与安全科学引用本文复制引用
辛泽宇,周东方,刘起坤,刘元锋..电磁窗桁架阻挡比对天线口径场影响分析[J].电波科学学报,2018,33(1):71-76,6.基金项目
国家863计划项目 (2014AA01A707) （2014AA01A707）
