Design, Optimization and Experimental Evaluation of a F-shaped Multiband Metamaterial Antenna

Corrêa, Diego C.; Resende, Úrsula C.; Bicalho, Fabiano S.; Gonçalves, Yan S.

doi:10.1590/2179-10742018v17i41541

Cited by 6 publications

(6 citation statements)

References 10 publications

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“…This low power signal available in the environment minimizes the levels of power delivered to the load, and limits the possibilities of technology use [13]. Thus, different solutions have been investigated with the aim of increasing the ability of the rectenna to deliver more power to the load [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Energy Harvesting System Using Rectenna Applied to Wireless Powered Remote Temperature Sensing

Zanon¹,

Resende²,

Brandão³

et al. 2021

PIER C

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Nowadays, due to the ever-increasing number of electronic devices and communication systems that use high-frequency electromagnetic waves, a significant level of electromagnetic energy is available in the environment that is not entirely used. In this work, a complete electromagnetic harvesting system using a rectenna is proposed to collect this energy and feed a temperature measurement module. The rectenna is constituted by a combination of a microstrip antenna that captures the electromagnetic energy and a rectifier circuit that converts it into electric energy in direct current (DC) form to feed ultra-low-power loads. The proposed system uses a rectangular microstrip antenna, designed and optimized by using the Computer Simulation Technology (CST R ⃝ ) software to operate at 2.45 GHz. This designed antenna presents a measured reflection coefficient lower than −20 dB at the operating frequency with a maximum gain equal to 7.26 dB. In addition, a voltage doubler rectifier circuit is designed and optimized by using the Advanced Design System (ADS R ⃝ ) to match the impedance of the designed antenna to reduce the reflection losses between these two modules, achieving maximum measured efficiency of approximately 33%. Furthermore, a boost converter circuit is designed for the power management between collected and delivered powers to the sensor and to provide appropriate voltage levels to feed the temperature measurement module. This module consists of an ultra-low-power microcontroller and a temperature sensor that operates in the range of 1.8-3.6 V. The procedures for designing and testing each module of this system are detailed. Finally, a prototype is built and tested under different operating conditions to confirm its functionality and feasibility. These tests show that the proposed system can operate without batteries, only with the harvested electromagnetic energy dispersed in the environment, even from modulated and pulsating sources, as is the case of commercial routers.

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Section: Introductionmentioning

confidence: 99%

Energy Harvesting System Using Rectenna Applied to Wireless Powered Remote Temperature Sensing

Zanon¹,

Resende²,

Brandão³

et al. 2021

PIER C

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“…The magnetic resonance method is based on the resonant coupling with two-same frequency resonant circuits while it is interacting weakly with other off-resonant frequency. Therefore, many studies have been proposed the techniques to improve efficiency and operating distance [7][8][9][10]. Moreover, a near-field WPT system is using magnetic field coupling and uses in high power applications, so electromagnetic fields (EMFs) accordingly increase.…”

Section: Introductionmentioning

confidence: 99%

A Defected Metasurface for Field-Localizing Wireless Power Transfer

Chaimool¹,

Rakluea²,

Zhao³

et al. 2021

Wireless Power Transfer – Recent Development, Applications and New Perspectives

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The potential of wireless power transfer (WPT) has attracted considerable interest for various research and commercial applications for home and industry. Two important topics including transfer efficiency and electromotive force (EMF) leakage are concerned with modern WPT systems. This work presents the defected metasurface for localized WPT to prevent the transfer efficiency degraded by tuning the resonance of only one-unit cell at the certain metasurface (MTS). Localization cavities on the metasurface can be formed in a defected metasurface, thus fields can be confined to the region around a small receiver, which enhances the transfer efficiency and reduces leakage of electromagnetic fields. To create a cavity in MTS, a defected unit cell at the receiving coils’ positions for enhancing the efficiency will be designed, aiming to confine the magnetic field. Results show that the peak efficiency of 1.9% for the case of the free space is improved to 60% when the proposed defected metasurface is applied, which corresponds to 31.2 times enhancements. Therefore, the defected MTS can control the wave propagation in two-dimensional of WPT system.

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“…As it covers a wide range of materials, its properties can be exploited to control and improve the propagation characteristics, thus affecting the antennas functioning, in particular the microstrip patch antenna (MPA) [1]. MTMs are structures artificially obtained, usually periodic and can present electrical permittivity (ε), magnetic permeability (µ) and refractive index (n) simultaneously negative [2]- [4].…”

Section: Introductionmentioning

confidence: 99%

“…Another form of design is to insert cells on both sides of a dielectric plate, or in the patch and ground plane. In a microstrip dipole antenna [4], cells with divided circular geometry, such as Split Ring Resonator (SRR), obtained an increase in BW, gain and decrease in the value of the S11. For a high gain antenna in THz [21], it was used a unit cell of the axially symmetric fishnet with a low index MTM (LIM).…”

Section: Introductionmentioning

confidence: 99%

Effect of Metamaterial Cells Array on a Microstrip Patch Antenna Design

Lima

Cunha

Silva

2020

J. Microw. Optoelectron. Electromagn. Appl.

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In this paper, a microstrip patch antenna (MPA) design was developed to verify the performance of a metamaterial cell array (MTM) Capacitive Loaded Loop (CLL) immersed in the substrate. The metamaterial was obtained from metal laminates designed inside a dielectric material, with dimensions carefully calculated to have the effective negative permittivity and permeability, consequently the negative refractive index, in a certain frequency range. In this case, the geometric control of the unit cell parameters allowed its organization in a periodic arrangement to be immersed in the MPA substrate. Simulated and experimental results were obtained and compared for some parameters of the antenna, which showed a good relationship between MTM and MPA performance.

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Design, Optimization and Experimental Evaluation of a F-shaped Multiband Metamaterial Antenna

Cited by 6 publications

References 10 publications

Energy Harvesting System Using Rectenna Applied to Wireless Powered Remote Temperature Sensing

Energy Harvesting System Using Rectenna Applied to Wireless Powered Remote Temperature Sensing

A Defected Metasurface for Field-Localizing Wireless Power Transfer

Effect of Metamaterial Cells Array on a Microstrip Patch Antenna Design

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