2-LAYER WAVE ABSORBER COMPOSED OF SOFT-MAGNETIC AND FERROELECTRIC SUBSTANCES

The proposed electromagnetic-wave absorber is based on the fact that t he high matching frequency of a carbonyl iron-loaded one-leger rubber wave absorber decreases as the thickness or permittivity of the ferroe lectric substance layer in front of it increases. A proposed two-layer wave absorber with a carbonyl iron-loaded rubber and 0.5-mm titanate system has a return lass of 29 dB at 0.9 GHz. The matching frequency c an easily designed to any frequency in quasi-microwave-band by control ling the thickness of ferroelectric substance layer. It is suitable fo r quasi-microwave-band application.