X波段低副瓣波导缝隙阵列天线设计  

Design of an X-band low sidelobe waveguide slot array antenna

作　　者：简玲[1] 石磊[1] 陈晓鹏[1] JIAN Ling;SHI Lei;CHEN Xiao-peng(No.724 Research Institute of CSIC,Nanjing 211153)

机构地区：[1]中国船舶重工集团公司第七二四研究所,南京211153

出　　处：《雷达与对抗》2019年第1期39-42,共4页Radar & ECM

摘　　要：设计了一种X波段窄边波导缝隙阵列天线。基于商业软件仿真得到开缝波导谐振时的S21,并以此计算出辐射缝隙的电导值,设计出具有幅度泰勒分布的波导缝隙阵列。该天线采用端馈的同轴波导变换器和内置的吸收负载,结构简单,质量轻,线源的安装采用背部螺钉固定的方式,正面无固定块遮挡,试验阵在8%频带范围实测驻波小于1.2,方位面最大副瓣电平小于-32 dB。An X-band narrow-edge waveguide slot array antenna is designed. Based on the commer- cial software simulation, the S21 of the slotted waveguide resonance is obtained, the conductance value of the radiating slot is calculated, and the waveguide slot array is designed with the amplitude Taylor distribution. The antenna adopts the end-fed coaxial waveguide converter and the built-in ab- sorption load with simple structure and light weight. The line source is fixed with the back screws, and there are no fixed blocks on the front side. The measured VSWR is lower than 1.2 at the band- width of 8% and the maximum SLL in the azimuth plane is lower than -32 dB.

关 键 词：阵列天线 波导缝隙 驻波副瓣 

分 类 号：TN82[电子电信—信息与通信工程]