Enhancement of image quality by using metamaterial inspired energy harvester

被引：55

作者：

Alkurt, Fatih Ozkan ^{[1
]}

Altintas, Olcay ^{[1
]}

Ozakturk, Meliksah ^{[2
]}

Karaaslan, Muharrem ^{[1
]}

Akgol, Oguzhan ^{[1
]}

Unal, Emin ^{[1
]}

Sabah, Cumali ^{[3
,4
]}

机构：

[1] Iskenderun Tech Univ, Fac Engn & Nat Sci, Dept Elect & Elect Engn, TR-31200 Iskenderun, Hatay, Turkey

[2] Iskenderun Tech Univ, Fac Engn & Nat Sci, Dept Energy Syst Engn, TR-31200 Iskenderun, Hatay, Turkey

[3] METU, Dept Elect & Elect Engn, NCC,TRNC Mersin 10, TR-99738 Kalkanli, Guzelyurt, Turkey

[4] METU, Kalkanli Technol Valley KALTEV, NCC,TRNC Mersin 10, TR-99738 Kalkanli, Guzelyurt, Turkey

来源：

PHYSICS LETTERS A | 2020年 / 384卷 / 01期

关键词：

Metamaterial; Energy harvester; Sub-wavelength imaging; Antenna; ABSORBER; DESIGN;

D O I：

10.1016/j.physleta.2019.126041

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Metamaterial energy harvester based subwavelength imaging structure is presented. Besides, 2x2 array patch antenna is designed to create incident radiated signal towards the proposed harvester structure. Harvested energy is converted to DC voltage signal by using Schottky diodes and each cell is represented by 256 grey levelled pixel value. Therefore, any incident electromagnetic wave placed in the operating frequency range can be monitorized. In the experimental study, experiments are realized with and without antenna to investigate the effects of instantaneous electromagnetic waves and the observed images. Afterwards, another experiment is conducted to observe the effects of metal plate which is located between the antenna and the harvester structure. The last experiment is performed by using a Yagi Uda antenna for sub-wavelength imaging. The proposed harvester structure can be used in various applications such as energy harvesting, incident wave tracing, crack detection, spy device detection, medical imaging, and so on. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：7

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