Design and double negative property verification of C band left‐handed metamaterial

Abstract

In this article, a left‐handed (LH) metamaterial with miniaturized unit cell and broad bandwidth is designed. Its relative bandwidth is 56.4%, and the unit cell electrical size is 0.067 at the central frequency where the LH metamaterial is available. The effective permittivity and effective permeability are extracted from the transmission and reflection data at normal incidence for the LH metamaterial proposed here. The double negative (DNG) property is shown by the simultaneously negative effective permittivity and effective permeability and is confirmed by the equivalent circuit. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1732–1736, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21763

The Property of the Horizontal Dipole Radiating in the Presence of a Single Lossless Metamaterial Sphere

“…Comparing to the other field, the "focus" should have a relative high value; because of the different incident direction and the curvature of the sphere, the "focus" is not an exact point but a small region. Assuming that ϕ ¼ 0, Figures 2,3,4,5,6,7,8,9,10,11,12,13 give the near field of the electric model under different geometrical and electromagnetic parameters. In the following figures, the relative magnitudes of the electric field are in proportion to the lightness.…”

“…applications of metamaterial, in general, has already been accomplished [4][5][6],i.e., Fan-Yi Meng designed a new metamaterial [4]. Properties of near and far fields for the electric line source illumination of a lossless metamaterial cylinder [5] and metamaterial covered conductor cylinder [6] were examined,.…”

Analysis of the double negative metamaterials using FDTD

“…Different solutions were proposed in [3,4] using lossless matching and decoupling networks to impose orthogonality between the antenna patterns to reduce the cross-correlation coefficient between them. A different approach is proposed in this Letter.…”

“…Experimentally, the first effective DNG was synthesized by Smith et al in microwave regime. Since then, considerable attention has been arisen, and remarkable progress has been achieved [2], which leads to the development of potential applications in mobile communications, medical imaging, and optoelectronics [3]. DNG represents a new kind of engineered electromagnetic materials by properly inserting periodic inclusions with dimensions smaller than the guided wavelength into a host material [4].…”

Investigation on the far Field Properties of the Lossless Metamaterial Covered Cylinder

“…Cylindrical as well as spherical configurations involving metamaterial has been investigated, as well. A considerable amount of work with regard to the development and applications of metamaterial, in general, has already been accomplished [3][4][5][6][7][8]. Nevertheless, there is a continuing interest in further exploring the properties and potential applications of these materials in microwave and optical domain.…”