【摘要】 为了获得尽可能大的信号带宽和连续可调的时延差,本文设计了一个基于啁啾光纤光栅和多波长激光器的延迟线。通过调制啁啾光纤光栅,实现了33．60ps到45．68ps的连续可调时延差。将此延迟线应用在相控阵雷达中,实现了微波信号在10GHz带宽范围内波束指向角从47．32°到90．00°的连续控制。更多还原

【Abstract】 In order to obtain the possible wide signal bandwidth and continuous tunable time delay inequality,a new time delay line based on a chirped fiber grating and a multi-wavelength laser is designed. By tuning the chirped fiber grating,different time delay inequality from 33.60ps to 45.68ps are achieved. When the time delay line is used in the phased array antennas,continuous control of the beam pointing angle are achieved in the range from 47.32°to 90.00°at the microwave frequecies up to 10GHz.更多还原