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Open AccessArticle

Compact Wearable Meta Materials Antennas for Energy Harvesting Systems, Medical and IOT Systems

Department of Electrical Engineering, Kinneret and Ort Braude Colleges, Hemek Hayarden 15132, Israel
Electronics 2019, 8(11), 1340; https://doi.org/10.3390/electronics8111340
Received: 4 October 2019 / Revised: 6 November 2019 / Accepted: 9 November 2019 / Published: 13 November 2019
(This article belongs to the Section Microwave and Wireless Communications)
Demand for green technologies and green energy is in continuous growth in the last decade. Compact efficient radiators are very important for energy harvesting portable systems. Small antennas have low efficiency. The efficiency of communication and energy harvesting systems may increase by using efficient passive and active antennas. The system dynamic range may be improved by connecting amplifiers to the printed antenna feed line. Design, design considerations, computed and measured results of wearable meta-materials antennas with high efficiency for energy harvesting applications are presented in this paper. The antennas electrical parameters on human body were analyzed by using commercial full-wave software. The wearable antennas are compact and flexible and are 1.6 mm thick. The directivity and gain of the antennas with Split-ring resonators (SRR), is higher by 2 dB to 3 dB than the antennas without SRR. The resonant frequency of the antennas without SRR is higher by 5% to 10% than the antennas with SRR. View Full-Text
Keywords: medical systems; metamaterial antennas; printed active antennas; energy harvesting medical systems; metamaterial antennas; printed active antennas; energy harvesting
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Sabban, A. Compact Wearable Meta Materials Antennas for Energy Harvesting Systems, Medical and IOT Systems. Electronics 2019, 8, 1340.

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