scholarly journals Dual-polarized bidirectional three-dimensional metamaterial absorber with transmission windows

2021 ◽  
Author(s):  
Hai Lin ◽  
Yanjie Wu ◽  
Jie Xiong ◽  
Rui Zhou ◽  
Qiuyu Li ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Metamaterial Absorber ◽  
Dual Polarized ◽  
Transmission Windows

Three-Dimensional Ultra-Broadband Metamaterial Absorber with Full Graphite Structure

2019 ◽  
Vol 49 (1) ◽  
pp. 689-694
Author(s):  
Fei Lv ◽  
Zhongyin Xiao ◽  
Xiaojie Lu ◽  
Mingming Chen
Keyword(s):  
Three Dimensional ◽  
Metamaterial Absorber ◽  
Graphite Structure

scholarly journals Planar Dual Polarized Metasurface Array for Microwave Energy Harvesting

Electronics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1985
Author(s):  
Maged A. Aldhaeebi ◽  
Thamer S. Almoneef
Keyword(s):  
Energy Harvesting ◽  
Dielectric Substrate ◽  
Metamaterial Absorber ◽  
Absorption Efficiency ◽  
Unit Cell ◽  
Resistive Load ◽  
Electromagnetic Energy Harvesting ◽  
Absorbed Power ◽  
Simulation Results ◽  
Dual Polarized

The design of a dual polarized metasurface collector based on the metamaterial full absorption concept for electromagnetic energy harvesting is introduced. Unlike previous metamaterial absorber designs, here the power absorbed is mostly dissipated across a resistive load rather than within the dielectric substrate. This is achieved by channeling the absorbed power to an optimal resistive load through a via hole. The simulation results show that a power absorption efficiency of 98% is achieved at an operating frequency of 2 GHz for a single unit cell. A super unit cell consisting of four cells with alternating vias was also designed to produce a dual polarized metasurface. The simulation results yielded a radiation to AC efficiency of around 98% for each polarization.

scholarly journals Wideband Vector Antenna for Dual-Polarized and Three-Dimensional Direction-Finding Applications

2019 ◽  
Vol 18 (8) ◽  
pp. 1572-1575
Author(s):  
Johan Duplouy ◽  
Christophe Morlaas ◽  
Herve Aubert ◽  
Patrick Potier ◽  
Philippe Pouliguen
Keyword(s):  
Three Dimensional ◽  
Direction Finding ◽  
Dual Polarized ◽  
Vector Antenna

scholarly journals Three-Dimensional Resistive Metamaterial Absorber Loaded with Metallic Resonators for the Enhancement of Lower-Frequency Absorption

2017 ◽  
Author(s):  
Yang Shen ◽  
Jie Qiu Zhang ◽  
Yong Qiang Pang ◽  
Lin Zheng ◽  
Jia Fu Wang ◽  
...  
Keyword(s):  
Absorption Band ◽  
Three Dimensional ◽  
Areal Density ◽  
Metamaterial Absorber ◽  
Experimental Results ◽  
Broadband Absorption ◽  
Three Samples ◽  
Wide Range ◽  
Metamaterial Absorbers

Resistive patch array incorporating with metallic backplane provided an effective way to the achievement of broadband metamaterial absorbers(MAs). When loading metallic metamaterial to resistive MA, the outstanding construction helps realize more flexible and diversified forms of broadband absorption. In this paper, we attempted to load metallic resonators(MRs) to resistive MA in the three-dimensional construction, which benefits further enhancement of lower-frequency absorption. Simulation showed that the partial absorption band was separated to lower frequency, while the rest of broadband absorption was unaffected. Meanwhile, after combining multi-unit of the proposed MAs, the stair-stepping broadband absorption was also achieved. At last, three samples were fabricated. The agreements between simulations and experimental results demonstrated that resistive MA loaded with MRs provided an effective way for further enhancement of lower-frequency absorption with almost no change of the absorbing structure and areal density. Thus, it is worthy to expect a wide range of applications to emerge inspired from the proposed attempt.

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