现代雷达不仅要求灵敏度高,还应力求小型化。波导——微带过渡器便是实现这一目标的关键高频部件之一。本文从工程设计的角度出发,通过必要的定量分析和适当的近似模拟,大胆地提出了一种新的设计方案:“双切圆法”,并以此为核心,研制成功了一种体积小、耗资少、性能优异的X波段脊式渐变线型波导——微带过渡器。 Modern radar not only requires high sensitivity, but also should strive to miniaturization. Waveguide - microstrip transition is one of the key high-frequency components to achieve this goal. This article from the engineering design point of view, through the necessary quantitative analysis and appropriate approximate simulation, boldly put forward a new design: “double cut round method” and as a core, the successful development of a small size , Low-cost, high-performance X-band ridge gradient linear waveguide - microstrip transition.