摘要
低截获技术的应用大大提高了雷达的生存能力和作战能力。本文根据低截获雷达要求,按照天线综合方法,设计了一款满足指标要求的相控阵天线。首先,依据指标极化形式、单元间距、扫描范围和扫描增益的要求选取双层微带天线作为辐射单元并进行了理论设计和仿真;然后,利用HFSS仿真软件仿真设计了并馈双层微带天线和天线子阵,通过仿真发现电压驻波比和方向图满足设计要求;最后,加工了一个辐射单元试验小阵,测试互耦,计算其扫描电压驻波比和阵中单元方向图,性能优良,验证了天线设计的正确性。
The application of low probability of interception(LPI)technology greatly improves the survivability and combat capability of radar.Based on the method of antenna synthesis,a phased array antenna is designed to meet the requirement of LPI radar.Firstly,the double-layer microstrip antenna is selected as the radiation element according to the requirements of the polarization form,the unit spacing,the scanning range and the scanning gain,and the theoretical design and simulation are carried out.Then,the double-layer microstrip antenna and antenna array are designed and fed by HFSS simulation software.The VSWR and the direction diagram are found to meet the design requirements through simulation.Finally,a small radiating element test array is processed to test the mutual coupling,and its scanning voltage standing wave ratio and the orientation diagram of the element in the array are calculated.The excellent performance verifies the correctness of the antenna design.
作者
孙姣
蒋延生
张安学
SUN Jiao;JIANG Yansheng;ZHANG Anxue(The Sixth Military Representative Office in Xi’an,Xi’an 710021;Xi’an Jiaotong University,Xi’an 710049)
出处
《火控雷达技术》
2019年第3期76-82,共7页
Fire Control Radar Technology
关键词
天线综合
双层微带
相控阵天线
antenna synthesis
double-layer microstrip
phased-array antenna
