非福斯特电路匹配的宽带电小天线研究
唐娟
【期刊名称】《电子质量》 【年(卷),期】2016(000)010
【摘要】该文研究了一种能够使电小天线正常工作于超短波频段的方法，即在电小天线前端加载非福斯特电路。该电路突破了无源匹配网络的增益带宽理论限制，能够极大地改善电小天线的性能。该文章对加载浮地型的非福斯特小单极子天线进行了仿真分析，仿真实现了在100MHz-400MHz的整个频段内驻波比小于2，且阻抗特性改善很大，实现了电小天线的宽频带和小型化。为了进一步验证仿真结果的实际可行性，加工了实物进行测试，证明了理论与实际间存在一定的差距。%This paper studies the method that can make the electrically small antenna works in the VHF ba-nd,which is loaded with non-foster circuits in the front of electrical y smal antenna.The circuits break throu-gh the limitation of the gain bandwidth of the passive matching network,which can greatly improve the perf-ormance of the antennas.The article simulates the loading floating type non-foster smal monopoles antenn-a.And the simulation results achieve VSWR less than 2 during 100MHz-400MHz and the impedance chara-cteristic improved greatly.Final y,the wideband and miniaturization of the electrical y smal antenna are ach-ieved.In order to further verify the feasibility of the simulation results,it has been tested to prove that there is very difference between theory and practice.
非福斯特电路匹配的宽带电小天线研究
