A Metamaterial Based Microwave Absorber Composed of Coplanar Electric-field-coup- Led Resonator and Wire Array
نویسندگان
چکیده
Abstract—In this paper, we present a new type of a double-negative metamaterial absorber (MMA) with a periodic array composed of in-plane an electric-field-coupled-LC (ELC) resonator and a wire. In contrast to common MMA configurations, a metallic pattern layer of the proposed absorber is placed parallel to the incident wave propagation direction. An appropriately designed combination structure is etched on one side of an FR-4 substrate. Here, we fabricated a prototype absorber with a planar array of 66 × 30 unit cells. Our experiments showed that the proposed absorber exhibited a peak absorption rate greater than 86% at 10.1 GHz irrespective of the incident angles up to 60◦.
منابع مشابه
A Planar, Layered Ultra-wideband Metamaterial Absorber for Microwave Frequencies
In this paper, an ultra-wideband metamaterial absorber is designed and simulated. The proposed absorber is planar and low profile. It is made of a copper sheet coated with two dielectric layers. Each unit cell of the metamaterial structure is composed of multiple metallic split rings, which are patterned on the top and middle boundaries of the dielectrics. The designed absorber utilizes differe...
متن کاملElectromagnetic tuning of resonant transmission in magnetoelastic metamaterials
Articles you may be interested in Triple band polarization-independent ultra-thin metamaterial absorber using electric field-driven LC resonator Adjustable low frequency and broadband metamaterial absorber based on magnetic rubber plate and cross resonator J. Ultra-broadband electromagnetically induced transparency using tunable self-asymmetric planar metamaterials Tuning limitations of the vol...
متن کاملWide-Angle Polarization Independent Triple Band Absorber Based on Metamaterial Structure for Microwave Frequency Applications
This paper presents a wide-angle polarization independent triple-band absorber based on a metamaterial structure for microwave frequency applications. The designed absorber structure is the combination of two resonators (resonator-I and resonator-II). The proposed absorber is ultrathin in thickness (0.012λo at lowest resonance frequency and 0.027λo at highest resonance frequency). The proposed ...
متن کاملA Broadband Flexible Metamaterial Absorber Based on Double Resonance
We present a broadband microwave metamaterial (MM) absorber, the unit cell of which consists of a lumped-resistor-loaded electric-inductive-capacitive (ELC) resonator and a cut-wire on the same side of a flexible polyimide substrate. In contrast to the common MM absorber, the metallic pattern layer of the proposed structure is placed parallel to the direction of propagation of the incident wave...
متن کاملAn Ultrathin Penta-band Polarization-insensitive Compact Metamaterial Absorber for Airborne Radar Applications
In this article, an ultrathin penta-band polarization-insensitive metamaterial absorber has been presented, which consists of an array of a closed ring embedded in a tetra-arrow resonator. The proposed ultrathin (~k0/18 corresponding to the highest absorption frequency) structure exhibits five distinct absorption peaks at 3.4, 8.34, 9.46, 14.44, and 16.62 GHz with peak absorptivities of 98.6%, ...
متن کامل