A new type of dispenser cathode with dual-layer (Os-W/Re) is developed. The cathode coated with Os-W/Re shows better emi......

在分析了一种结构简单且具有宽带特性的双层贴近耦合微带贴片天线的基础上，通过计算阵列单元间E面和H面的互耦效应，确定了合适的阵元......