手征平板介质波导中的场分析

Fields Analysis of Slab Dielectric Chirowaveguide

本文首次研究了手征平板介质波导中电磁波的传播特性,给出了波导中的场分布、色散关系和截止方程,以及最低截止波数Kc随手征导纳ζc的变化规律。结论表明,在手征平板介质波导中,TE、TM和TEM模均不能单独传输,其伸输模是耦合模。当ζc趋于零时,本文的所有结果均退化成通常平板介质波导情形。

Propagation properties of slab dielectric chirowaveguide have been analysed first in this paper. The field distribution, dispersion relations and cut-off wavenumber equation are given, and the influences of chirality admittance ζc on lowest cut-off wavenumber kc are discussed. It is shown that TE, TM and TEM modes cannot be supported in slab dielectric chirowaveguide. If ζc→0, the results in this paper are all turned into general slab dielectric waveguide's.