When reinforced with conductive fibers, woven composites can exhibit interesting shielding properties. This paper focuses on their response for obliquely incident plane waves in the high-frequency range (500 MHz to 40 GHz). A two-step homogenization technique is carried out. First, the composite response (shielding effectiveness and reflection coefficient) is computed using a 3D finite element simulation, then the effective properties are estimated by implementing an optimization process to solve the inverse problem. Results show that composites effective properties are independent of the angle of incidence and wave configuration. This suggests that oblique incidence scenarios can be studied by homogenizing the material based on the case of normal incidence.

当用导电纤维增强时，编织复合材料可以表现出有趣的屏蔽性能。本文重点介绍它们对高频范围（500 MHz 至 40 GHz）内斜入射平面波的响应。进行两步均质化技术。首先，使用 3D 有限元模拟计算复合响应（屏蔽效率和反射系数），然后通过实施优化过程来估计有效属性以解决逆问题。结果表明，复合材料的有效特性与入射角和波配置无关。这表明斜入射情景可以通过基于垂直入射情况的材料均质化来研究。