A circularly polarized wideband high gain patch antenna for wireless power transfer

Carlo, C. A. Di; Donato, Loreto Di; Mauro, G. S.; Rosa, Roberto La; Livreri, Patrizia; Sorbello, G.

doi:10.1002/mop.31022

Cited by 26 publications

(12 citation statements)

References 10 publications

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“…Implementing efficient WPT and RF EH is not a simple task, because even though RF energy offers high pervasiveness and the ability to be directed to out-of-sight locations, its power conversion efficiency (PCE) remains very low. All this has already prompted many researchers to contribute highly enlightening papers on the subject [50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67]. This paper contributes to this field of research with an investigation of RF WPT between a power transmitter (reader) and an RF self-powered, battery-less BLE tag within a WSN infrastructure.…”

Section: Introductionmentioning

confidence: 97%

Advanced Monitoring Systems Based on Battery-Less Asset Tracking Modules Energized through RF Wireless Power Transfer

Rosa

Dehollain

Livreri

2020

Sensors

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Asset tracking involving accurate location and transportation data is highly suited to wireless sensor networks (WSNs) featuring battery-less nodes that can be deployed in virtually any environment and require little or no maintenance. In response to the growing demand for advanced battery-less sensor tag solutions, this article presents a system for identifying and monitoring the speeds of assets in a WSN with battery-less tags that receive all their operating energy through radio frequency (RF) wireless power transfer (WPT) architecture, and a unique measurement approach to generate time-domain speed readouts. The assessment includes performance characteristics and key features of a system on chip (SoC) purposely designed to power a node through RF WPT. The result is an innovative solution for RF to DC conversion able to address the principal difficulties associated with maximum power conversion efficiency (PCE) with sensitivity and vice versa, a strategy, and a design optimization model to indicate the number of readers required for reliable asset identification and speed measurement. Model validation is performed through specific tests. Experimental results demonstrating the viability of the proposed advanced monitoring system are provided.

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Section: Introductionmentioning

confidence: 97%

Advanced Monitoring Systems Based on Battery-Less Asset Tracking Modules Energized through RF Wireless Power Transfer

Rosa

Dehollain

Livreri

2020

Sensors

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“…Circularly polarized (CP) antennas [1][2][3][4] at relatively low frequencies (higher UHF band) have been profitably adopted in several satellite applications such as CubeSats [5,6], MEO satellites [7], telemetry tracking and command (TTC) antennas [8], near-field focusing [9][10][11] only to mention a few. In particular, CP patch antennas combine the advantages of fabrication easiness and of CP: the antenna does not need to be oriented along a particular direction, it is insensible to Faraday rotation, and the channel capacity is inherently duplicated by using the two orthogonal circular polarizations.…”

Section: Introductionmentioning

confidence: 99%

Design of Dual Circularly Polarized Sequentially-Fed Patch Antennas for Satellite Applications

et al. 2020

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In this paper, we present the design and fabrication of two dual circularly polarized (CP) patch antennas that can be profitably used as feeders for reflector systems normally adopted for satellite applications. In the first part of the manuscript, we propose the optimization of a dual-CP patch antenna, loaded by a fence of passive monopoles around it to increase antenna gain for high elevation angles. To achieve dual-CP operation mode, the circular patch has been sequentially-fed by three pins, whose mutual phase-shift is equal to 120 ∘ . The antenna feeding network was placed on the antenna back and designed using microstrip technology. Two different input ports provide both right-hand (RH) and left-hand (LH) circular polarizations. A prototype of such an antenna was fabricated and measured at f = 8 . 25 GHz. Furthermore, to test the versatility of the proposed single radiating patch, in the second part of the manuscript, we present the results of geometrically scaling at f = 2 . 2 GHz (higher UHF band) and this was used as a building block for the design of a dual-CP sequentially-fed 2-by-2 array antenna. The results for both the proposed antennas are satisfactory in terms of impedance bandwidth, broad radiation pattern, gain and cross-polarization rejection, thus they can be profitably used as feeders for reflectors at relatively low frequencies.

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“…In the last decade, ranges of antenna for energy harvesting applications have been proposed such as patch antenna [3], spiral antenna [4], dipole antenna [5], slot antenna [6], metamaterial antenna [7], and so on. These antenna designs have narrowband [5,8], multiband [9,10], or wideband [1][2][3][4][11][12][13][14] operations. A single narrow band design produces low conversion efficiency for low-power levels of input power density and not very proper for wireless energy scavenging applications.…”

Section: Introductionmentioning

confidence: 99%

A Wideband Fractal Planar Monopole Antenna with a Thin Slot on Radiating Stub for Radio Frequency Energy Harvesting Applications

Fakharian

2020

IJE

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In this paper, for energy harvesting applications a design of a wideband planar monopole antenna is proposed using fractal geometry and inserting a thin slot on radiation patch. The proposed antenna is optimized at various stages during its design. Moreover, a parametric study is done for understanding sensitivity of important design parameters in the design process of the antenna. The designed antenna operates at 10-dB impedance bandwidth from 0.92 to 2.58 GHz (fractional bandwidth of 95%) with low profile structure and compact size of 65 × 65 × 0.8 mm 3 , acceptable return losses, stable radiation characterizes and reasonable gains. A potential application of the antenna as a receiving antenna for harvesting systems has been carried out inside the laboratory as the harvested power from ambient radiofrequency (RF) energy. This wideband antenna has a good potential to harvest RF energy of available signals in the GSM-900, GSM-1800, and Wi-Fi bands, and can be used as a part in DC power supply modules of low power sensor networks.

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A circularly polarized wideband high gain patch antenna for wireless power transfer

Cited by 26 publications

References 10 publications

Advanced Monitoring Systems Based on Battery-Less Asset Tracking Modules Energized through RF Wireless Power Transfer

Advanced Monitoring Systems Based on Battery-Less Asset Tracking Modules Energized through RF Wireless Power Transfer

Design of Dual Circularly Polarized Sequentially-Fed Patch Antennas for Satellite Applications

A Wideband Fractal Planar Monopole Antenna with a Thin Slot on Radiating Stub for Radio Frequency Energy Harvesting Applications

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