End-fire leaky-wave antenna array based on parallel plate waveguide structure

The utility model discloses an end-fire leaky-wave antenna array based on a parallel plate waveguide structure, which comprises a parallel plate waveguide formed by parallel metal plates, one end of the parallel plate waveguide is connected with a coaxial connector SMA through a gradient feeder line, and the other end of the parallel plate waveguide is connected with a matched load. And a plurality of circular ring antenna elements are distributed on two sides of the parallel plate waveguide at equal intervals. According to the leaky-wave antenna, the problems of low radiation efficiency, difficulty in miniaturization and limitation of high profile of the leaky-wave antenna in the prior art are solved. 本实用新型公开了一种基于平行板波导结构的端射漏波天线阵，包括由平行金属板构成的平行板波导，平行板波导其中一端通过渐变馈线连接同轴连接器SMA，平行板波导另一端连接匹配负载，平行板波导的两侧等间距分布有若干圆环天线元。本实用新型解决了现有技术中存在的漏波天线辐射效率不高，难以小型化以及高剖面的局限性问题。