We present experimental and theoretical results on an acoustic metamaterial that exhibits a
negative effective modulus in a frequency range from 0 to 450 Hz. A one-dimensional …

Metamaterials are understood to be artificially engineered materials that exhibit unusual or
difficult to obtain electromagnetic (EM) properties. Such properties would include negative or …

This paper proposed a hybrid printed electromagnetic pressure sensor using a metamaterial
absorber. We used a three-dimensional printed flexible resin for the transformable substrate …

Labyrinthine acoustic metamaterials are good choices for realizing sound insulation,
acoustic stealth, and acoustic lenses by virtue of their stable performance and rich modes …

Focusing using conventional lenses relies on the collection and interference of propagating
waves, but discounts the evanescent waves that decay rapidly from the source. Since these …

Multi-functional microwave metamaterials offer a great solution for active components and
modules that are potentially applicable in stealth, energy, and wireless communication …

Inspired by the fractal concept, a miniaturized and fully printed planar, left‐handed (LH)
material with C band (from 4.89 to 5.55 gigahertz) negative permittivity and permeability is …

We describe here a class of acoustic metamaterials with fractal Hilbert space-filling and
coiled geometry with equal tortuosity for noise mitigation. Experiments are performed using …

When designing negative-refractive-index (NRI) metamaterials, scientists have struggled to
overcome three primary obstacles: polarization dependence, narrow bandwidth, and …

This article reviews some of the recent progress made in the field of near-field focusing and
near-field imaging. In particular, it addresses the “meta-screen” that produces a …