The two-sheet capacitive Jaumann absorber

Theory, design and perspectives of electromagnetic wave absorbers

“…The losses can be introduced in the dielectric substrate (dielectric losses) or in a surface (ohmic losses). The former is the case of the Dallenbach layer absorbers [29]- [31] and the latter is the case of Salisbury, Jaumann or CCA absorbers [8], [32]- [34]. In order to achieve a good absorption level at a single frequency or over a wide frequency band, it is necessary to create one or more resonances where the imaginary part of the input impedance is zero.…”

Low‐cost and miniaturized metamaterial absorber using 3D printed swastika symbol

“…However, its fabrication and maintenance costs are high and the function it provides underperforms. Instead of material‐based absorbers, structure‐based absorbers have been studied such as Salisbury, Jaumann, and Dallenbach absorbers . EM absorbing structures provide advantages of easy fabrication, low cost, and functionality with tuning components because of printed circuit board (PCB) process.…”

On Current and Prospective Use of Binary Thin Multilayers in Radar Absorbing Structures

“…Considering the scenario where the surface impedance of the PEC backed magneto-dielectric material is matched to free space (µ r = ε r ) such that Z r = 1, and (3.4) simpli es to 5) with β 0 = ω √ µ 0 ε 0 and n s = √ µ r ε r is the index of refraction.…”

“…For passive absorbers, a wider bandwidth may be obtained by utilizing multiple resistive layers, as in the Jaumann absorber; in a similar manner, the tuning range of the active Salisbury screen may be extended by incorporating multiple controllable frequency selective surface (FSS) layers, and a typical result for the two FSS case, together with the two layer passive case reported in [5].…”