Microwave solid-state left-handed material with a broad bandwidth and an ultralow loss

A polarization-dependent wide-angle three-dimensional metamaterial absorber

“…To date, the research on metamaterials mainly focuses on the realization of left-handed pass-band and negative regractive index and many novel left-handed unit cells, like S-shaped unit cell [4], O-shaped unit cell [5], coplanar magnetic and electric resonator unit cell [6], have been proposed with an aim to expand the lefthanded pass-band and to reduce loss. Meanwhile, the waveabsorption property of metamaterials has been almost neglected, although the use of metamaterials will potentially enhance the performance of absorbers.…”

An architecture for active metamaterial particles and experimental validation at RF

“…Electric and magnetic metamaterials have been extensively analyzed theoretically, in simulations, and tested experimentally, and are currently built by putting together arrays of passive subwavelength resonant particles, such as split-ring-resonators (SRRs) [6,7], omega particles [8], electricfield-coupled resonators (ELCs) [9], or cut-wires [10,11].…”

Crankled S-Ring Resonator With Small Electrical Size

“…Left-handed metamaterials are not available in nature but has been artificially realized and verified based on the split-ring resonator (SRR) and thin wires [2][3][4][5][6][7]. Recently, other metamaterial structures, such as the symmetrical ring resonator [2,12], Ω-like structure [13], S-shaped resonators [14,15], etc, have been reported and shown to exhibit left-handed properties. Some photonic crystals reported have also been shown to support backward wave and exhibit negative refraction [16].…”