摘要
设计了一种新型超宽带平面天线。用FDTD研究了近地面天线的模拟计算问题 ,给出了天线的近场辐射性能。通过与平面蝶形偶极天线对比 ,结果表明该天线具有波形保真度好 ,对称的辐射方向图及后向辐射小等特点 ,进一步通过加载集中电阻优化设计 ,改善了天线的驻波特性。此天线不仅适用于探地雷达 。
A new kind of ultra wide band (UWB) planar antenna was designed. The near field radiation of the antenna was analyzed by using FDTD method. Compared with bow tie antennas, the new antenna had much smaller waveshape distortion, higher symmetric pattern and less backward radiation. The VSWR of the antenna was further improved by loading with lumped resistors. The antenna can be used not only in GPR system, but also in broadband communication services, impulse radar system, and other relative fields.
出处
《电波科学学报》
EI
CSCD
2004年第3期371-373,共3页
Chinese Journal of Radio Science
