Increasing attention on metamaterials has been paid due to their exciting physical behaviors
and potential applications. While most of such artificial material structures developed so far …

The performance of metamaterial is limited to a designed narrow band due to its resonant
nature, it is highly desirable to incorporate active inclusions in metamaterials to extend the …

Lightweight structures with multi-functions such as electromagnetic wave absorption and
excellent mechanical properties are required in spacecraft. A three-dimensional …

A reconfigurable transmitarray with beam steering and polarization manipulation capabilities
is presented. The transmitarray element consists of an active side, a 360° reflective phase …

An electrically tunable negative permeability metamaterial consisting of a periodic array of
split ring resonators infiltrated with nematic liquid crystals is demonstrated. It shows that the …

In this communication, a novel filtering antenna is proposed by utilizing active frequency
selective surface (FSS), which can simultaneously achieve filtering and beam steering …

We numerically and experimentally studied an ultrathin and broadband perfect absorber by
enhancing the bandwidth with embedded resistors into the metamaterial structure, which is …

This paper presents the results of a feasibility study for the design of multi-band tunable
metamaterials based on the use of micro-split SRR (MSSRR) structures. In this study, we …

We present the design and demonstration of a low-loss circularly polarized (CP)
transmitarray. The proposed transmitarray is composed of a receiver cell with a 180° analog …

A magnetotunable left-handed material (LHM) consisting of yttrium iron garnet (YIG) slab
and metallic wires has been demonstrated by experiments and simulations. The left-handed …