CAJ | 학술논문

为天气雷达设计一维相扫相控阵天线，方位面副瓣低于-30 dB，波束宽度小于1°，俯仰面接收副瓣低于-40 dB。方位面波束采用窄边波导裂缝阵列天线实现，采用全数字T/R组件精确控制幅度和相位，实现低于-40 dB的俯仰面接收副瓣。测试结果表明，副瓣电平与波束宽度指标与理论值吻合较好，满足指标要求。
위천기뢰체설계일유상소상공진천선，방위면부판저우-30 dB，파속관도소우1°，부앙면접수부판저우-40 dB。방위면파속채용착변파도렬봉진렬천선실현，채용전수자T/R조건정학공제폭도화상위，실현저우-40 dB적부앙면접수부판。측시결과표명，부판전평여파속관도지표여이론치문합교호，만족지표요구。
A one?dimensional phased array antenna was designed for weather radar. Its sidelobe in azimuth is better than -30 dB,the beamwidth in azimuth is less than 1° ,the receiving sidelobe in elevation is better than ?40 dB. The beam?width in azimuth is realized by the waveguide narrow?side slot array antenna,all?digital T/R module was adopted to control the amplitude and phase accurately,so that the receiving sidelobe being better than ?40 dB in elevation is realized. The measured results show that the sidelobe level and beamwidth coincides with theoretical values quite well. The system met the requirements of design indexes.