Herein, the Z11 argument tangent is proposed as a novel criterion for assessing energy loss (absorption) of the reciprocal two‐port networks composed of the shielding material. With a simple mathematical deduction, it can be found that the relationship between the network absorption and the Z11 argument tangent is inverted. The absorption decreases with increasing the Z11 argument tangent, and the Z11 argument is approximately equal to the power factor angle. Additionally, a series of samples are presented to verify their absorptions and the Z11 argument tangents. The numerical simulations on other works are also presented to calculate the Z11 argument tangent and validate the relationship between the Z11 argument tangent and electromagnetic absorption from another side. The experiment and simulation results agree well with that of the mathematical deduction. The findings can be applied in most passive shielding materials and provide a promising approach to guiding and developing absorption‐dominated electromagnetic shielding materials for next‐generation communication applications.

中文翻译：

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电磁干扰屏蔽双端口网络的广义微波吸收判据

在此，将Z11参数正切被提出作为评估由屏蔽材料组成的互易双端口网络的能量损失（吸收）的新标准。通过简单的数学推导，可以发现网络吸收与Z11参数正切是倒转的。吸收量随着浓度的增加而降低Z11参数正切，并且Z11参数约等于功率因数角。此外，还提供了一系列样品来验证其吸收率和Z11论证切线。还提出了其他工作的数值模拟来计算Z11论证正切并验证之间的关系Z11从另一面论证切线和电磁吸收。实验和仿真结果与数学推导非常吻合。这些发现可应用于大多数无源屏蔽材料，并为指导和开发下一代通信应用的吸收为主的电磁屏蔽材料提供了一种有前途的方法。