نتایج جستجو برای: planar metamaterial

تعداد نتایج: 69647  

2016
Tarakeswar Shaw Aritra Roy Debasis Mitra

In this paper, a simple approach for efficiency enhancement of a wireless power transfer system by using mu near zero (MNZ) type of metamaterial is proposed. A single slab containing onesided periodic structures of 3×3 array of meander-line unit cell has been placed between transmitting and receiving coils in the wireless power transfer system. The presented metamaterial structure is less compl...

2015
Vera N. Smolyaninova Kathryn Zander Thomas Gresock Christopher Jensen Joseph C. Prestigiacomo M. S. Osofsky Igor I. Smolyaninov

Recent experiments have shown the viability of the metamaterial approach to dielectric response engineering for moderately enhancing the transition temperature, Tc, of a superconductor. In this report, we demonstrate the use of Al2O3-coated aluminium nanoparticles to form the recently proposed epsilon near zero (ENZ) core-shell metamaterial superconductor with a Tc that is three times that of p...

Journal: :Optics express 2006
Kaan Guven M Deniz Caliskan Ekmel Ozbay

We demonstrate experimentally the double-negative (epsilon < 0, micro < 0) transmission band of a one-dimensional metamaterial structure under normal-to-plane propagation in the microwave regime. The structure consists of stacked bilayers of metal cutwire and wire pairs, which are separated by a thin dielectric layer. The existence of the negative index of refraction is inferred from the transm...

2016
SARIKA PAL VIVEK SINGH

The present study investigates the angular response and sensitivity of a surface plasmon resonance biosensor with metamaterial, by taking the advantage of the remarkable property of metamaterials. The proposed biosensor numerically shows that silver with a metamaterial layer enhances the sensitivity. The thickness of metamaterial and silver layer has been optimized. On comparing these results w...

Journal: :DEStech Transactions on Materials Science and Engineering 2021

This paper presents the design and results of a planar lens fed by fan beam H-plane horn antenna. Compared with traditional dielectric antenna, based on metamaterials is composed several unit cells designed for changing phase incident wave. The presented center-fed antenna located at 100mm from lens, thickness it 5mm. simulation exhibits high gain 30dB 76.5GHz fan-shaped main half-power beamwid...

2001
Ekmel Ozbay Koray Aydin Ertugrul Cubukcu Mehmet Bayindir

We report free space transmission and the first reflection measurements of a composite double negative (DNG) metamaterial, also known as a left-handed material (LHM). The metamaterial composes of the split-ring-resonators and discontinuous thin wires. Very high transmission values of the metamaterial are observed within a frequency range for which both effective permeability and permittivity ar...

Journal: :Journal of microscopy 2008
K P Chiu T S Kao D P Tsai

The characteristics of plasmonic resonance in a dielectric-sandwiched metamaterial film at visible wavelengths of 650 and 568 nm have been investigated (for both p- and s-polarized light). Our calculated results demonstrate that each mode of plasmonic resonance has maximum resonance strength at a particular film thickness of the metamaterial. We also demonstrated that the effect of evanescent f...

Journal: :IEEE Access 2021

In this paper a metamaterial-inspired T-matching network is directly imbedded inside the feedline of microstrip antenna to realize optimum power transfer between front-end an RF wireless transceiver and antenna. The proposed network, which composed arrangement series capacitor, shunt inductor, exhibits left-handed metamaterial characteristics. matching first theoretically modelled gain insight ...

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