一种具有谐振特性的左手材料结构设计与仿真

Structural Design and Simulation of A Kind of Left-Handed Meta-material With Resonance Characteristic

文章提出了一种具有谐振特性的左手材料结构单元。该结构基于谐振型左手材料理论设计,使用CST电磁仿真软件,分析了该材料结构的谐振特性,并进一步提取出该材料的等效介电常数、等效磁导率和波矢量。结果表明,在4个结构单元条件下,该结构在X波段10.89-11.49GHz范围内出现由谐振特性产生的通带,其中在10.89-11.31GHz内出现右手传输通带以及在11.31-11.49GHz内出现谐振型左手通带。该结构的带通特性,或可在X波段范围内微波器件领域获得广泛应用。

This paper proposed a new meta-material unit with resonance characteristic. Its structure is based on the theory of resonance type left-handed materials design. Using the CST electromagnetic simulation software, the resonant characteristics of the structure were analyzed. Furthermore, the equivalent permittivity, permeability and the wave vector were extracted from scattering parameters. The results show that under the condition of four structural units, there exists a pass-band of 10.89-11.49GHz which consists of a 10.89-11.31GHz right-handed pass-band and an 11.31-11.49GHz left-handed pass-band. The band-pass characteristic of the structure could be widely used in the X band microwave device.