应用于WiMAX频段和C波段具有带阻特性的超宽带单极子天线的研究  

Research on UWB Monopole Antenna with Notch-bands for WiMAX and C band Application

作　　者：张强[1] 金杰[1] 刘青爽[1,2] 李茜[1] 张如彬[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072 [2]华北理工大学信息工程学院,河北唐山063009

出　　处：《南开大学学报（自然科学版）》2017年第1期1-4,共4页Acta Scientiarum Naturalium Universitatis Nankaiensis

摘　　要：为降低窄带信号对超宽带的干扰,对具有带阻特性的超宽带天线进行了研究,提出了1种对Wi MAX频段和C波段具有带阻特性的超宽带单极子天线.天线由馈电网络、缺陷型辐射贴片及部分接地板组成,通过在天线的矩形辐射单元上刻蚀出宽度不同的十字形槽及I形槽,使得天线在3.3-3.7 GHz及3.7-4.2 GHz频段出现阻带,有效抑制了Wi MAX无线通信(工作频段为3.3-3.7 GHz)和C波段卫星通信(下行频段为3.7-4.2 GHz)等两种窄带信号对超宽带的干扰.天线尺寸为28×25×1.6 mm3,仿真分析结果表明,天线带宽为3.09-10.71GHz,其合成阻带为3.3-4.5 GHz,包含了3.3-3.7 GHz及3.7-4.2 GHz两个频段,实现了辐射方向图H面的全向特性和E面稳定性.The band-notched UWB（Ultra-wideband） monopole antennas have been researched in order to reduce the interference of narrow band signals, and a band-notched UWB monopole antenna, which consists of feed network, defective radiating patch and partial ground plane, with notched bands for Wi MAX and C band has been proposed. By fabricating a cross-shaped slot and an I-shaped slot with different width on the radiating patch, the antenna can obtain the notched bands of 3.3-3.7 GHz and 3.7-4.2GHz, and the interference of the Wi MAX wireless communication（3.3-3.7 GHz） and C band satellite communication（3.7-4.2 GHz） can be avoided effectively. The proposed antenna has a compact volume of28×25×1.6 mm3, the simulation results show that the antenna has operating bandwidth of 3.09-10.71 GHz with the notched bands including 3.3-3.7 GHz and 3.7-4.2 GHz, omnidirectional radiation characteristic of the H-plane and the stability of the E-plane.

关 键 词：超宽带 带阻特性 单极子天线 无线通信 

分 类 号：TN82[电子电信—信息与通信工程]