옻을 지지재로 사용한 페인트형 MnZn와 NiZn 페라이트 전자파 흡수체 특성의 비교연구

A Study on Comparison of Painted Type MnZn and NiZn Ferrite EM Absorber's Characteristics Using Natural Lacquer as a Binder

A silicone rubber and a chloride polyethylene(CPE) have been generally used for the development of high-performance composite ElectroMagnetic(EM) wave absorbers. In this study, the EM wave absorption abilities for natural lacquer which is newly suggested in this study as a binder for composite EM wave absorbers were investigated to develop an improved EM wave absorbers. In addition, MnZn and NiZn ferrite composite EM wave absorbers mixed with the natural lacquer were prepared and their absorption ability was also investigated. MnZn and NiZn ferrite composite EM wave absorbers which employ the natural lacquer as a binder showed an improved EM wave absorption characteristics in comparison with the conventional binder such as a silicone rubber and a chloride polyethylene(CPE). The matching frequency and the absorption ability of EM wave absorbers mixed with natural lacquer can be controlled by the change of the absorber's thickness.