一种共形宽带圆极化螺旋天线的设计  

Design of a Conformal Wideband Circularly Polarized Spiral Antenna

作　　者：刘宗全[1] 钱祖平[1,2] 韩振平[1] 

机构地区：[1]解放军理工大学,南京210007 [2]东南大学毫米波国家重点实验室,南京210096

出　　处：《电讯技术》2011年第11期94-98,共5页Telecommunication Engineering

基　　金：国家自然科学基金资助项目(60872046)~~

摘　　要：为满足共形天线低剖面特性的要求,设计并制作了一种低剖面的圆极化阿基米德螺旋天线。天线利用单臂阿基米德螺旋结构实现圆极化辐射,并采用同轴探针馈电。实测结果表明,天线在2~11.4 GHz的频率范围内回波损耗小于-10 dB,轴比小于3 dB的频率范围为2.5~8.4 GHz。该天线结构简单,工作频带宽,且剖面极低,可作为多种载体的共形天线使用。In order to meet the demand of low-profile property of conformal antenna, a low-profile circularly polarized Arehimedean spiral antenna is designed arid manufactured. The antenna realizes circular polarization by single Archimedean spiral arm whieh is fed by coaxial line. The measured results show that in 2 - 11.4 GHz the return loss is less than - 10 dB. The bandwidth for AR （axial ratio） 〈 3 dB is 2.5 - 8.4 GHz. The antenna configuration is simple with wide bandwidth and especially its profile is extremely low. Therefore it can be used as conformal antenna for many kinds of earriers.

关 键 词：共形天线 圆极化 平面螺旋 宽带 低剖面 

分 类 号：TN82[电子电信—信息与通信工程]