CAJ | 학술논문

介绍了一种新型的Ku波段赋形圆极化波导缝隙阵列天线设计，采用矩形波导宽边纵向直缝隙耦合馈电四脊方形开口波导实现了波导天线的圆极化工作；采用波导窄边耦合器形式的功分器和配相波导组成的馈电网络，控制各线阵的幅度和相位，利用幅度和相位加权的方法实现了圆极化波导天线的波束赋形工作。基于项目需求设计、加工了一套24×16单元天线阵列，测试结果表明，该天线在3％的频段内轴向轴比优于3．0 dB、驻波比优于1．6、赋形波束区域覆盖了-40°～0°的范围，满足了项目的指标要求。
개소료일충신형적Ku파단부형원겁화파도봉극진렬천선설계，채용구형파도관변종향직봉극우합궤전사척방형개구파도실현료파도천선적원겁화공작；채용파도착변우합기형식적공분기화배상파도조성적궤전망락，공제각선진적폭도화상위，이용폭도화상위가권적방법실현료원겁화파도천선적파속부형공작。기우항목수구설계、가공료일투24×16단원천선진렬，측시결과표명，해천선재3％적빈단내축향축비우우3．0 dB、주파비우우1．6、부형파속구역복개료-40°～0°적범위，만족료항목적지표요구。
In this paper,the design of a novel Ku-band circular-polarized and beam-shaped planer anten-na array is presented.The open quadr-ridged waveguide fed by straight slots cutting in broad wall of rectan-gular waveguide is used to attain circular-polarization.The waveguide feeding network,which constructed by rectangular waveguide side wall coupler shaped power divider and phase compensation rectangular waveguide, is used to control amplitude and phase distribution.It has been applied to obtain shaped beams.A demo ar-ray of 24×16 elements is designed,manufactured and tested.The experimental results show that the band-width of VSWR<1.6 is 3%,and the AR level is below 3.0dB.The measured area of shaped beam pattern is-40°~0°.