摘要
基于PIN二极管形成的硅基固态等离子体通道天线由于具有多功能、超宽带、隐身等优良特性,而成为国内外研究的热点。简要阐述了此种通道的形成机理,通过理论推导获得了通道中的自由载流子浓度与通道等效折射率、自由载流子浓度与PIN结构参数和外加激励之间关系的解析解。理论研究发现,在一定条件下通道可以获得浓度高且均匀的带电粒子分布,并能够有效地传输高频电磁波信号。三维有限元法计算结果表明,当多个这样的等离子通道以一定的间隔和方式排列后,其可以有效地作为天线来接收和传输电磁波。这些系统的理论研究将进一步促进人们对硅基固体等离子通道的理解,为此类天线的设计和加工提供理论指导。
Solid state plasma channel （SSPC） antenna based on PIN diodes owns many excellent performances, such as ultra-wide band, cloaking, and multifunction, and has attracted many attentions in the communication field. In this pa- per, we systematically study this SSPC in theory, including the channel formation mechanism, the free charge carrier concen- tration and distribution and the equivalent refractive index under different conditions. And the related analytical solutions have been given out. The research results show that the charge carriers with high density and uniform distribution can be a- chieved in SSPC under certain conditions, and then high frequency electromagnetic signals can be efficiently transmitted. The FEM simulation results show that this channel can be used as antenna effectively. These research results will further promote our understanding on the SSPC and provide important theoretical guidance for the related antenna design and fabrication.
出处
《微波学报》
CSCD
北大核心
2014年第3期67-71,共5页
Journal of Microwaves
基金
青年科学基金项目(11305111)
