Journal ArticleDOI
Triple band polarization-independent metamaterial absorber with bandwidth enhancement at X-band
TLDR
In this paper, a triple-band polarization-independent metamaterial absorber using square-shaped closed ring resonators over wide angle of incidence was proposed for airborne and surveillance radar signal absorption applications.Abstract:
In this paper, we propose a triple band polarization-independent metamaterial absorber using square-shaped closed ring resonators over wide angle of incidence. The unit cell consisting of various square loops is designed by using the parametric analysis so that it exhibits a triple band absorption response with two bands lying in C-band and one in X-band for airborne and surveillance radar signal absorption applications. Furthermore, in X-band, the absorber exhibits a broadband response with full width at half maxima bandwidth of 940 MHz (9.43%). The structure exhibits bandwidth enhanced properties for any angle of polarization under normal incidence. It also shows high absorption for wide angle of incidence up to 60°. The proposed structure is fabricated and experimental results show proper matching with the simulated responses.read more
Citations
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Journal ArticleDOI
Broadband Metamaterial Absorbers
Peng Yu,Peng Yu,Lucas V. Besteiro,Lucas V. Besteiro,Yongjun Huang,Jiang Wu,Lan Fu,Hark Hoe Tan,Chennupati Jagadish,Gary P. Wiederrecht,Alexander O. Govorov,Alexander O. Govorov,Zhiming Wang +12 more
TL;DR: In this paper, the authors presented a review of the Advanced Optical Materials Hall of Fame article series, which recognizes the excellent contributions of leading researchers to the field of optical materials science. But they did not mention the work of the authors of this article.
Journal ArticleDOI
Transparent and Flexible Polarization-Independent Microwave Broadband Absorber
TL;DR: In this paper, an optically transparent, flexible, and polarization-independent broadband microwave absorber is presented. It is designed to possess two spectrally overlapped resonances of a bow-tie array.
Journal ArticleDOI
Triple band polarization-independent ultra-thin metamaterial absorber using electric field-driven LC resonator
TL;DR: In this paper, a triple band polarization-independent metamaterial absorber using electric field-driven LC resonators is proposed over wide angle of incidence, which exhibits triple band absorption property for any angle of polarization under normal incidence.
Journal ArticleDOI
An Ultrawideband Ultrathin Metamaterial Absorber Based on Circular Split Rings
TL;DR: In this paper, a simple design model for making ultrawideband ultrathin metamaterial absorber has been presented in microwave frequency regime, which is composed of two concentric circular split rings imprinted on a metal-backed dielectric substrate.
Journal ArticleDOI
Simple design of novel triple-band terahertz metamaterial absorber for sensing application
TL;DR: In this paper, a novel and simple design of a triple-band terahertz absorber formed by only an asymmetric cross is presented, and the theoretical results show that the proposed structure has three distinct absorption bands whose peaks are all over 99%.
References
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Journal ArticleDOI
Composite Medium with Simultaneously Negative Permeability and Permittivity
TL;DR: A composite medium, based on a periodic array of interspaced conducting nonmagnetic split ring resonators and continuous wires, that exhibits a frequency region in the microwave regime with simultaneously negative values of effective permeability and permittivity varepsilon(eff)(omega).
Journal ArticleDOI
Perfect metamaterial absorber.
TL;DR: This work fabricate, characterize, and analyze a MM absorber with a slightly lower predicted A(omega) of 96%.
Journal ArticleDOI
Sub-Diffraction-Limited Optical Imaging with a Silver Superlens
TL;DR: This work demonstrated sub–diffraction-limited imaging with 60-nanometer half-pitch resolution, or one-sixth of the illumination wavelength, using silver as a natural optical superlens and showed that arbitrary nanostructures can be imaged with good fidelity.
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Electromagnetic parameter retrieval from inhomogeneous metamaterials
David R. Smith,David R. Smith,D. C. Vier,Th. Koschny,Th. Koschny,Costas M. Soukoulis,Costas M. Soukoulis +6 more
TL;DR: It is shown here that a modification of the standard S-parameter retrieval procedure yields physically reasonable values for the retrieved electromagnetic parameters, even when there is significant inhomogeneity within the unit cell of the structure.
Journal ArticleDOI
Full-wave simulations of electromagnetic cloaking structures.
TL;DR: Full electromagnetic simulations of the cylindrical version of this cloaking structure are reported, using ideal and nonideal electromagnetic parameters that show that the low-reflection and power-flow bending properties of the electromagnetic cloaky structure are not especially sensitive to modest permittivity and permeability variations.