Wideband, thin, and polarization-insensitive perfect absorber based the double octagonal rings metamaterials and lumped resistances

Abstract

Triple-band polarization-insensitive wide-angle ultra-thin planar spiral metamaterial absorber Analysis and design of wire-based metamaterial absorbers using equivalent circuit approach J. Appl. Phys. 113, 114902 (2013); 10.1063/1.4795277Design, fabrication and measurement of a broadband polarization-insensitive metamaterial absorber based on lumped elements

Scattering Fields Control by Metamaterial Device Based on Ultra-Broadband Polarization Converters

“…To obtain low RCS, perfect metamaterial absorber (PMA) with nearunity absorptivity and ultrathin structure was firstly proposed by Landy et al [10], which had become an important research aspect of the metamaterials. Later, researchers made efforts on the different PMA structures to achieve broadband absorption with insensitive polarization [11][12][13][14][15]. Another way of achieving low RCS using a planar configuration was proposed by M. Paquay [16].…”

Three-Dimensional Resistive Metamaterial Absorber Loaded with Metallic Resonators for the Enhancement of Lower-Frequency Absorption

“…But the expansion of absorption bandwidth was carried out at the sacrifice of ultrathin thickness and light weight characteristic. Then, considering the resonance is inspired from the dispersion of effective medium, loading lumped elements to MA can provide an effective way to ameliorate the dispersion relation to achieve broadband absorption [19][20][21][22]. More specifically, when loading lumped resistor and capacitor to MA, the several absorption peaks will not only be adjusted to more adjacent frequencies, but they also exhibit low Q factor in the spectrum.…”

A Broadband Transmission Metasurface with Polarization-Transforming Functionality

“…The manipulation of the electromagnetic wave by the metamaterials normally aims at the control of its amplitude [3][4][5][6], phase [7][8][9][10][11] and polarization [12][13][14][15][16][17][18][19][20][21][22]. According to the propagation direction of electromagnetic waves, polarization-manipulating metamaterials consist of reflective and transmitting types.…”