小型化3D扼流圈天线设计  

Design of a miniaturized 3D choke ring antenna

作　　者：赵泽方 杜平[1] 邵玉[1] 

机构地区：[1]合肥工业大学电子科学与应用物理学院,合肥230009

出　　处：《中国科技论文》2016年第14期1605-1608,共4页China Sciencepaper

基　　金：高等学校博士学科点专项科研基金资助项目(20130111120025)

摘　　要：设计了1款由天线内芯和扼流圈组成的小型化3D扼流圈天线,通过在天线内芯四周加导电环提高天线低仰角增益,其20°仰角增益大于-3dB,相位中心误差为2.2mm,滚降系数在13dB以上,并能够覆盖GPS、BDS、GLONASS、GALILEO等四大导航系统。制作了扼流圈天线,仿真和测量结果表明,该天线低仰角增益高,相位中心稳定性好,抑制多径信号能力强。A miniaturized 3D choke antenna is designed, consists of antenna core and choke ring. Stacked conductive ring is used to improve low elevation gain of antenna. Its 20° elevation gain is greater than -3 dB,phase center error is 2. 2 mm, roll-off factor is more than 13dB and it supports four navigation systems, including GPS,BDS,GLONASS and GALILEO. The simulated and measured results show that the antenna presents high gain, low elevation, stable phase center and strong ability to inhibit the multipath signals.

关 键 词：小型化 扼流圈天线 低仰角增益 相位中心 滚降系数 

分 类 号：TN965.2[电子电信—信号与信息处理]