一种超宽带四臂螺旋天线的设计  

Design of A Ultra Wideband Four-Arm Spiral Antenna

作　　者：管灵 何姿[1,2] 殷红成 陈如山[1] Guan Ling;He Zi;Yin Hongcheng;Chen Rushan(Department of Communication Engineering Nanjing University of Science and Technology,Nanjing 210000;Science and Technology on Electromagnetic Scattering Laboratory,Beijing Institute of Environmental Features,Beijing 100072)

机构地区：[1]南京理工大学通信工程系,南京210000 [2]北京环境特性研究所电磁散射重点实验室,北京100072

出　　处：《测控与通信》2021年第4期21-24,共4页

摘　　要：本文设计了1款超宽带的小型化四臂螺旋天线。通过采用吸波材料加载,螺旋天线的尺寸可被显著缩小。此四臂螺旋天线直径为100 mm,剖面高度为7.762 mm。此天线工作在2个模式下,和模(模式1)与差模(模式2),实现超宽带天线双工作模式下的远场信号和线性相位特性。仿真结果显示此天线VSWR<2的情况下,模式1下带宽为2〜12 GHz,模式2下带宽为2〜12 GHz,2种模式下工作带宽都达到6个倍频程。In this paper,a miniaturized four-arm spiral antenna with ultra-wideband is designed.Absorbing material-loaded method is adopted to dramatically reduce the antenna size.This four-arm spiral antenna has a diameter of 100 mm and a section height of 7.762 mm.This antenna works in two modes,and mode(mode 1)and difference mode(mode2),to realize the far-field signal and linear phase characteristics of the ultra wideband antenna in dual mode.Results show that a bandwidth of mode 1 and mode 2 is 6:1 with VSWR<2 from 2 GHz to 12 GHz.

关 键 词：超宽带 四臂螺旋天线 小型化 

分 类 号：TN8[电子电信—信息与通信工程]