公开(公告)号：US11545757B2

公开(公告)日：2023-01-03

申请号：US16720640

申请日：2019-12-19

申请人： Nima Bayat-Makou ,  Ke Wu ,  Ahmed Abdelwahed Kishk

发明人： Nima Bayat-Makou ,  Ke Wu ,  Ahmed Abdelwahed Kishk

IPC分类号： H01Q13/28 ,  H01Q13/22

摘要： A single-layer substrate integrated directive broadside beam leaky-wave antenna is provided. Opposite ends of a leaky-wave structure are fed with anti-phase versions of a common signal, resulting in broadside frequencies being set apart from the open stopband. To achieve this, the common signal can be split into two equal length paths, one including a perfect electrical conductor (PEC) reflector and the other including a perfect magnetic conductor (PMC) reflector. Alternatively, the common signal can be split into two paths which differ in length by a half wavelength. A power splitter and feed horns can be used in the respective paths. The leaky-wave structure may have transverse slots which increase in width toward a midpoint of the structure. The antenna can be formed in a single planar portion of a lithographic structure, for example by patterning an upper conductive layer thereof.