A Highly Sensitive Broadband Rectenna for Low Power Millimeter-wave Energy Harvesting Applications - Archive ouverte HAL
Communication Dans Un Congrès Année : 2018

A Highly Sensitive Broadband Rectenna for Low Power Millimeter-wave Energy Harvesting Applications

Résumé

In this paper, a highly sensitive broadband millimeter-wave energy harvesting rectenna has been designed, fabricated, and experimentally investigated. The proposed structure includes a high gain 8-by-1 gap-coupled antenna array and a zero-bias Schottky diode rectifier circuit, to efficiently convert RF to DC signal. In order to further characterize the antenna array circuit, both structures (antenna and rectifier) are individually implemented on thin-film ceramic substrate (ε r = 9.9, h = 127 μm), using an MHMIC (Miniature Hybrid Microwave Integrated Circuits) fabrication process. Then, they are joined together using low-loss wideband waveguide (WR12) to microstrip transitions in order to validate the investigated rectenna configuration. A maximum measured RF to DC conversion efficiency of 49.3 %, and sensitivity level of around -60 dBm were successfully achieved. These results make the proposed rectenna structure an excellent candidate for low power millimeter-wave energy harvesting.
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Dates et versions

hal-04423488 , version 1 (29-01-2024)

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Chaouki Hannachi, Slim Boumaiza, Serioja Ovidiu Tatu. A Highly Sensitive Broadband Rectenna for Low Power Millimeter-wave Energy Harvesting Applications. 2018 IEEE Wireless Power Transfer Conference (WPTC), Jun 2018, Montreal, France. pp.1-4, ⟨10.1109/WPT.2018.8639130⟩. ⟨hal-04423488⟩
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