Transit time is the primary factor which limits the ability of a transistor to operate at high frequency. 渡越时间是限制晶体管高频工作能力的主要因素。
The bandwidth of the instantaneous wideband phased array radar is limited by the aperture overlay time, and will cause the direction of the beam changed. 瞬时宽带相控阵雷达的带宽受孔径渡越时间的限制,会造成雷达波束指向的变化。