摘要
给出了波导缝隙天线设计步骤,设计一种X波段波导缝隙天线,计算了天线口径、波导数量、缝隙的单元数量、宽度、位置等参数,设计半高波导宽臂耦合谐振缝魔T和差器,在此基础上完成了天线设计。仿真结果表明,当中心频率为12 GHz时,和波束增益为28.9 dB,第一副瓣电平为-22.2 dB,所设计的天线形式可获得较好的和、差波束方向图、电压驻波比和增益等参数。
The procedures for designing a waveguide aperture antenna are presented.A waveguide aperture antenna working in X-band is designed.The aperture of antenna,number of waveguide,and parameters of aperture including number,width and location are calculated.A wide-arm coupling resonant aperture magic T comparator with half-height waveguide is designed,based on which the design of the antenna is finished.Simulation results indicate that gain of the sum beam is 28.9 dB and the first side lobe is-22.2 dB at 12 GHz.The antenna can attain good parameters such as sum and subtract pattern,voltage stand wave ratio and gain.
出处
《现代电子技术》
2010年第21期5-8,12,共5页
Modern Electronics Technique
基金
武器装备预研基金(9140A04020310KG0112
9140A31020609KG0170)
关键词
波导缝隙天线
低副瓣
辐射缝隙
和差器
waveguide aperture antenna； low side lobe； radiation slot； comparator；
