摘要
利用孔径耦合馈电和反向馈电方法实现了四单元圆极化微带天线阵的设计,该天线采用双层介质结构,利用圆形贴片上45°方向的矩形缝隙实现了圆极化特性。仿真结果表明,在ISM(5.725GHz^5.875GHz)频段内,该圆极化天线阵具有高增益、低剖面、较小的回波损耗、较宽的阻抗带宽以及轴比带宽等优点,并且加工简单,易于组阵。
A four-element circular polarization microstrip antenna array used aperture coupled feeding and reverse feeding principle is presented. The antenna consists of double- layered dielectric and realizes circular polarization characteristic by cutting rectangular slot on circular patch in the direction of 45°. The simulation results show that in ISM band the circu- lar polarization microstrip antenna array possesses the features of high gain, low profile, low return loss, wide impedance bandwidth and axial ratio bandwidth and is easy to be fabricated in the array design.
出处
《制导与引信》
2013年第3期47-51,共5页
Guidance & Fuze
关键词
C波段
孔径耦合
圆极化
微带天线阵
C band
aperture coupling
circular polarization
microstrip antenna array
