Achieving volumetric gain metamaterials

Achieving volumetric gain metamaterials

Blog Article

Metamaterials have been attracting tremendous interests due to their exotic electromagnetic characteristics, such as sub-wavelength imaging and invisibility cloak.However, the appreciable loss arising from the inherent resonant nature of metamaterials plagues many of their engineering applications.In this paper, 2 Piece Reclining Sectional we derive the condition for achieving gain media based on the conservation of energy, and propose a universal approach to achieve various gain metamaterials at microwave frequencies by incorporating active devices into traditional metamaterial building blocks.Theoretical homogenization models for such gain metamaterials are obtained from quasi-static considerations.

Full-wave Ice Maker Assembly simulations show that microwave net-gain metamaterials with negative permittivity, negative permeability or even negative refractive index are all achievable.This approach can be used in applications whose performances are limited due to material losses.