电磁波与复合材料板上传输线的耦合分析

利用单层均匀模型等效非均匀碳纤维复合材料，获得等效电磁参数，进而采用基于全波分析方法的仿真软件研究了碳纤维的排列方向以及入射波参数对传输线终端负载感应电流的影响。结果表明，当导线与碳纤维方向平行时，其场线耦合规律与同电导率导电板上的场线耦合变化规律基本一致，且负载感应电流大于导线与碳纤维正交时的感应电流。当电磁波垂直于复合材料板入射时，负载感应电流大于同等条件下电磁波平行入射时的感应电流。

Coupling of electromagnetic field to transmission line above the composite plate

The carbon fiber reinforced composite (CFRC) plate was represented by a single-layer homogenous anisotropic model, and then a full wave analysis based software was employed to simulate the induced current on termination loads of the transmission line composed of a conducting wire and the composite plate. Results show that variation of the induced current is similar to that of the conducting wire above the lossy homogenous conducting plate with same conductivity when the wire is parallel to the carbon fibers, and the induced current magnitude is higher than that of the wire orthogonal to the carbon fibers. Moreover, the induced current for the normal incidence of electromagnetic wave to the composite plate is greater than the current for the wave propagates along the plate, with the electric field parallel to the wire in both cases.