Drastic Widening the Bandwidth of Ferrite Electromagnetic Wave Absorbers

Abstract

Characteristics of novel electromagnetic wave absorbers, multilayered and grid structures, are discussed. They have wide bandwidth for low reflection, e.g., from 30 to 1830 MHz for reflection -20dB in a threelayered absorber. They are also effective to reduce the thickness of lossy dielectric in constructing ultrawide band absorbers.