Electromagnetic energy harvesting application based on tunable perfect metamaterial absorber

Furkan Dincer

Journal of Electromagnetic Waves and Applications, 2015, vol. 29, issue 18, 2444-2453

Abstract: This paper introduces an electromagnetic (EM) energy harvesting application based on tunable dual-band metamaterial absorber (MA) which includes a ring resonator with gap loaded varactor diode that operates in the microwave frequency regime. Although the suggested tunable structure has a very simple geometry, it provides perfect absorption of 99.91 and 84.79% for both frequencies of 5.01 and 4.79 GHz, respectively. It is concluded from the numerical analysis that it can be obtained higher voltage value on varactor diode when the metal plate is added on the structure, to achieve perfect absorber with EM energy harvesting. We also present a numerical analysis in order to explain physical interpretation of the harvesting mechanism in detail. A sensor application of the proposed structure is introduced in order to show an additional feature of the model. Moreover, the proposed tunable model is also suitable for a wide variety of microwave EM energy harvesting applications such as power transfer to any component, wireless power transmitter etc.

Date: 2015
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DOI: 10.1080/09205071.2015.1027794

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