Design of rectenna for wireless energy harvesting

Shire, Abdirahman Mohamud; Abdullah, Noorsaliza; Mohd, Ezri

doi:10.1109/scored.2016.7810060

Cited by 8 publications

(5 citation statements)

References 4 publications

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Section: Antenna Performancesupporting

confidence: 68%

“…The comparison is performed in terms of frequency, size, conversion efficiency, and output voltage. As it is observed, the proposed antenna shows excellent conversion efficiency in comparison to the published results in previous studies 18,22 6 | CONCLUSION In this paper, a novel printed circuit antenna on a cylindrical substrate of a miniaturized profile is proposed for RF energy harvesting at different frequency bands. The antenna patch is consistent of 3×5 Hilbert-shaped MTM array with partially defected ground plane by square EBG structures.…”

Section: Rf Energy Harvesting Measurementsmentioning

confidence: 56%

“…It is found that the proposed unit cell provides a significant coupling with increasing the unit cell number along the array length as shown in Figures A and B. This is due to the imaginary part reduction in the effective impedance combination along the length when they are added as parallel branches . However, the resonant frequency is tuned with increasing the unit cell along the width as seen in Figures C and D due to increasing the capacitive combination in series relatives …”

Section: T‐stub Gap Effectsmentioning

confidence: 93%

“…This is due to the imaginary part reduction in the effective impedance combination along the length when they are added as parallel branches. 18 However, the resonant frequency is tuned with increasing the unit cell along the width as seen in Figures 9C and 9D due to increasing the capacitive combination in series relatives. 13…”

Section: Unit Cell Numbermentioning

confidence: 97%

“…In Yang et al, an open complementary split ring resonator printed meander RFID tag was introduced. The carbon fiber‐based conductive composite was introduced for RFID tags in Elwi et al Moreover, microstrip antenna‐based carbon fiber ink was introduced in Elwi et al and Shire et al for different applications.…”

Section: Introductionmentioning

confidence: 99%

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Novel miniaturized folded UWB microstrip antenna‐based metamaterial for RF energy harvesting

Elwi

Jassim

Mohammed

2020

Int J Communication

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Summary This paper presents a design of an ultra‐wideband (UWB) cylindrical metamaterial (MTM) antenna for radio frequency (RF) energy harvesting to suit the fields of Internet of Things (IoT) applications. The patch circuitry is based on 3×5 Hilbert‐shaped MTM unit cells array to enhance the antenna bandwidth. While, the antenna ground plane is defected with an electromagnetic band gap structure to enhance the gain. The antenna is mounted on a polytetrafluoroethylene cylindrical substrate of an outer diameter of 15 mm and length of 32 mm with 1 mm in thickness. The substrate relative permittivity is 2.04, and the loss tangent is 0.0002. The antenna patch and the ground plane structures are printed with silver nanoparticles ink using a 2.5D CNC plotter machine. The fabricated prototype provides an UWB over the frequency range from 3.77 up to 13.89 GHz with a first separate resonant mode at 3 GHz. The antenna performance is tested numerically using two different software packages of CST MWS and HFSS. Then, an experimental validation is conducted to realize the performance of the proposed antenna in harvesting the RF energy. Excellent conversion efficiency, about 90%, is achieved at 5.8 GHz. Finally, the antenna radiation patterns and S11 spectrum are measured and compared against their simulated results to achieve good agreements.

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