Wideband Rectenna with Inductive High-Impedance Folded Dipole Antenna

Kishimoto, Hiroki; Itoh, Kenji; Noguchi, Keisuke; Ida, Jiro

doi:10.1109/wpt.2018.8639264

Cited by 5 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [10,11] meander-type monopoles or folded dipoles are proposed for synthesis of rectennas with efficiency exceeding 20%. In [12] an efficient antenna based on the traditional straight and planar half-wavelength dipole, which by suitable geometrical modification resulted in a radiator of quasi-circular shape with increased frequency bandwidth and operation at 868 MHz/915 MHz.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Rectenna for Powering Micro-Watt Sensors by Harvesting Ambient RF Signals’ Power

Karampatea

Siakavara

2019

Electronics

View full text Add to dashboard Cite

In the article, a dual and wide band antenna array suitable for RF rectenna applications was synthesized and global rectenna systems are presented. The array consists of two bowtie-shaped patches, printed on the one side of a dielectric slab (FR4). Οn the other side of the slab, an aperture-textured metallic ground layer, is printed. Examples of full-wave rectifiers connected, through matching networks, to the antenna elements and forming integrated rectenna systems for radio-frequency (RF) power harvesting at 868 MHz, from 920 to 960 MHz and at 1.8 GHz, are presented. Statistical results over frequency and the directions of arrival (DoAs) of incoming waves were received showing, at the rectifier, mean direct current (DC) voltage of 580 mV, and mean power of 58 μW, for circularly polarized waves of field intensity of 1.8 V/m. The DC voltage can reach 800 mV, the power 120 μW and the efficiency 68% when the waves come from DoAs of maximum antenna’s gain. Due to the wideband performance of the antenna, it could be used at various frequency slots as long as the matching network’s operation frequency is changed. Thus the proposed rectennas could be suitable for energizing low-power sensors or at least to charge their batteries.

show abstract

Section: Introductionmentioning

confidence: 99%