摘要
文中基于单极粗振子展宽带宽理论,采用一种新型加粗套筒单极子辐射体的实用模型来展宽套筒单极子天线的阻抗带宽,并利用有限元法(FEM)对其驻波和辐射特性以及天线各参数进行了分析。在此基础上,设计了一副工作在108MHz～420MHz频段、电压驻波比小于3．0的实用套筒单极子天线,计算结果与实测结果吻合良好。
On the basis of the theory that the bandwidth can be expanded by the thick single pole antenna, this paper introduces the model of a modified thickened sleeve monopole radiator to expand the impedance bandwidth of the sleeve monopole antenna. The VSWR and radiant characteristic and the parameters of the antenna are analyzed by the Finite Element Methods （FEM）. On the basis of these results, a practical sleeve monopole antenna operating over the range of 108 MHz -420 MHz with VSWR 〈 3.0 is designed. The calculational results derived agree well with the experimental results.
出处
《电子科技》
2007年第3期5-8,12,共5页
Electronic Science and Technology
关键词
单极粗振子天线
套筒单极子天线
有限元法
参数分析
thick single pole antennas
sleeve monopole antennas
finite element methods
parameter analysis
