【摘 要】
：
为一相控阵天线设计了频率选择表面(FSS)天线罩。通过对比分析原相控阵天线与引入不同结构FSS天线罩后天线/FSS系统的增益方向图,设计了FSS的单元结构类型和FSS天线罩的尺寸;
论文部分内容阅读
为一相控阵天线设计了频率选择表面(FSS)天线罩。通过对比分析原相控阵天线与引入不同结构FSS天线罩后天线/FSS系统的增益方向图,设计了FSS的单元结构类型和FSS天线罩的尺寸;同时,以天线/FSS系统副瓣电平最低为目标,优化了在相控阵天线扫描角为0°时,天线平面与FSS天线罩的距离参数,完成了相控阵天线/FSS天线罩系统的设计。以此为基础,对比分析了相控阵天线扫描工作时,加入FSS天线罩前后,相控阵天线的增益方向图,研究了有限尺寸FSS天线罩对相控阵天线的增益、主瓣电轴方向、副瓣电平以及瞄准误差等性能的影响。
A frequency selective surface (FSS) radome is designed for a phased array antenna. By comparing and analyzing the gain pattern of the original phased array antenna and the antenna / FSS system with different structure FSS radome, the unit structure type and FSS radome size of the FSS are designed. At the same time, the sidelobe level of the antenna / FSS system And the minimum is the target, the distance parameters between the antenna plane and the FSS radome are optimized when the scanning angle of the phased array antenna is 0 °, and the design of the phased array antenna / FSS radome system is completed. Based on this, the gain pattern of the phased array antenna before and after adding the FSS radome was compared and analyzed when scanning the phased array antenna. The gain of the phased array antenna with the finite size FSS radome, the main lobe axis Direction, sidelobe level and aiming error and other performance.
其他文献
Rapid dewatering and thickening of whole-tailings with ultrafine particles is one of the most important processes for the whole-tailings paste preparation. Deep
作为节能环保战略性新兴产业的组成部分,资源循环利用产业在提高资源利用效率、促进废弃物减量、减少环境污染等方面具有重要意义.从国家战略性新兴产业视角出发,梳理了资源
Based on the active failure mechanism and passive failure mechanism for a pressurized tunnel face, the analytical solutions of the minimum collapse pressure and
The root mean square (RMS) difference of time-lapse seismic amplitudes is routinely used to identify the substituted fluid type in a reservoir during oil field
Parameter estimation of the attributed scattering center (ASC) model is significant for automatic target recognition (ATR). Sparse representation based paramete
为推动废旧轮胎综合利用,适应行业发展新形势,引导行业健康发展,在深入调研基础上,我们对我部2012年公告发布的《轮胎翻新行业准入条件》《废轮胎综合利用行业准入条件》及20
Vacuum well point is a new but faint soft ground treatment method. This work focuses on the consolidation behavior of a reconstituted soft clayey specimen under
今年是全国各项工作进一步落实、实施好“十一五”规划的核心关键年,也是党的“十七大”胜利召开把国家各项事业发展推向新阶段的历史时期。新时期新机遇新发展,2008年1月,信
从具体读者满意度调查分析表的编制和发放的实践工作入手,本文在分析读者满意度调查表的基本情况和统计结果的基础上,分析讨论了读者调查表在信息服务工作中的重要作用。
St
存单变保单——别误会，这可不是能与刘谦的近景魔术、傅琰东的金鱼魔术，以及丁建忠的穿越魔术相提并论的魔术节目，却是对近年来在银行网点屡见不鲜的将消费者本来想办理的储蓄存款忽悠成投保保费的销售误导行为的无奈调侃。 “被保险”屡屡发生 通过银行代理保险已成为人身保险的重要业务来源，每年实现保费收入几乎都将近人身保险保费的一半。这在一定程度上满足了消费者的综合理财保障需求。不过，由于以往银保业务结