A Study on Design and Fabrication of mm-Wave EM Absorber

Kim, Dae Hun; Choi, Chang Mook; Choi, Dong Soo; Kim, Dong Il

Journal of Navigation and Port Research 2010;34(3):161-166.
Published online April 30, 2010.

밀리미터파 대역 전파흡수체의 설계 및 제작에 관한 연구

김대훈, 최창묵, 최동수, 김동일

A Study on Design and Fabrication of mm-Wave EM Absorber

Dae Hun Kim, Chang Mook Choi, Dong Soo Choi, Dong Il Kim

Abstract

The bandwidth of detecting radars used for military purpose is increasingly broadened, and recently, the frequency band of the detecting radars is expanding to millimeterwave bands of the millimeterwave bands of 35 GHz and 94 GHz. Since, especially, it is essential and important to fabricate and develop EM wave absorber with the absorption ability more than 10 dB in 94 GHz band, the EM wave absorber was manufactured based on the design method by FDTD simulation. As a result, the developed EM wave absorber with the composition ratio of Binder(CPE with additional materials) : Carbon = 70 : 30 wt.% has the thickness of 0.7 mm and the absorption ability more than 14 dB in the frequency range of 94 GHz.

Key Words: Detecting radar;Millimeterwave;Military purpose;EM wave absorber;FDTD