Design Method of an EM Wave Absorber in Transparent Type for V-band Using TiO2 Resistive Films

In this paper, we designed a EM wave absorber in transparent type at V-band for countermeasure EMC problems. Firstly, we suggested the structure of a transparent-type EM wave absorber consisting of polycarbonate (spacer) which are used for support fixture and two TiO2 films layers (transparent resistive sheets) which are used for reflection and absorption films. Secondly, a design method of the EM wave absorber in transparent type was described and the simulation result of the transparent-type EM wave absorber has been showing. As a result, the absorption ability of 36 dB for the simulated and designed absorber was obtained at 60 GHz.