Relationships between Surface Wave Attenuation and the Reflection Properties of Thin Surface Wave Absorbing Layer
Compared and analyzed the surface impedance defined by the basic definition of surface wave and by the reflection coefficient of thin radar absorbing material (RAM) layers backed with a perfect electric conductor (PEC) plate, the relationships between its surface wave attenuation property and its reflection characteristics can be founded. Equivalent surface impedance for a perfect electrical conductor (PEC) plate coated by a thin layer of RAM can be easily obtained based on the reflection coefficient for an infinite plate coated with same thin RAM layers, which can be regarded as a function for computing the attenuation of surface wave in this RAM layers. In this paper, two kinds of reality RAM for single layer coating and two layers coating will be considered for verifying this approach respectively. For two layers coating, the mono-static radar cross section (RCS) reduction properties of a slab coated with this RAM are discussed for evaluating the attenuation of surface wave because the equivalent medium theory is not appropriated under this condition. The proposed approach is effective and advantageous especially for thin multi-layers RAM coating.
Hai-Yan Chen Li-Juan Lu Dong-Jiao Guo Hai-Peng Lu Pei-Heng Zhou Jian-Liang Xie Long-Jiang Deng
State Key Laboratory of Electronic Thin Films and Integrated Device National Engineering Research Center of Electromagnetic Radiation Control Materials University of Electronic Science and Technology of China, Chengdu 610054, China
国际会议
Progress in Electromagnetics Research Symposium 2014(2014年电磁学研究新进展学术研讨会)
广州
英文
1146-1150
2014-08-01（万方平台首次上网日期，不代表论文的发表时间）