An X-band transparent wave absorber using an ITO resistive-film for oblique incident wave

Performances of a presented X-band transparent wave absorber for an oblique incidence are clarified theoretically and experimentally. In the case of TE-polarization, the absorption of 20dB or more was obtained at the frequency between 9.1 and 10.5 GHz, and the incident angle between 0 and 40 degrees under the target frequency of 10GHz and the target incident angel of 20 degrees. In the case of TM-polarisation, on the other hand, the absorption of 20dB or more was also obtained at the frequency between 9.5 and 11.0 GHz, and the incident angle between 0 and 30 degrees. The optical transmittivities of our absorber of about 80 % or more was also obtained.