Polyane Alves Santos

Ms. Polyane Alves Santos

orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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20 July 2022
Verified
Book Chapter
Closed access
PDF file
ISIngrid Araújo Sampaio
Ingrid Araújo Sampaio
Yuzo IanoYuzo Iano
Yuzo Iano
AOAurelio Ribeiro Leite de Oliveira
Aurelio Ribeiro Leite de Oliveira
LSLino Marcos da Silva
Lino Marcos da Silva
RJRinaldo Vieira da Silva Júnior
Rinaldo Vieira da Silva Júnior
KJKelem Christine Pereira Jordão
Kelem Christine Pereira Jordão

5 August 2024 in IEEE Sensors Journal
Verified
Journal Article
Open access
Amélia Moreira SantosAmélia Moreira Santos
Amélia Moreira Santos
RMRui A.S. Moreira
Rui A.S. Moreira
Tagleorge Marques SilveiraTagleorge Marques Silveira
Tagleorge Marques Silveira
Elvio Prado SilvaElvio Prado Silva
Elvio Prado Silva
Polyane Alves SantosPolyane Alves Santos
Polyane Alves Santos
Ruy Alberto Corrêa AltafimRuy Alberto Corrêa Altafim
Ruy Alberto Corrêa Altafim
Thermoformed tubular channels piezoelectrets exhibiting piezoelectric-magnetic behaviors were recently presented as Thermoformed Magnetic-Piezoelectrets (TMPs). This alternative sensor was suitable for detecting external magnetic fields from distant magnets. In this contribution, TMPs transducer was investigated as current transducer, where the magnetic field produced by an electrical current passing through a energized wire mechanically stimulates the TMP and consequently disrupts the electrical charge equilibrium providing a proportional electrical signal. The charge variation was correlated with the magnetic field intensity, providing a piezo-magnetic coefficient, similar to those noted in traditional piezoelectrets. It has been noticed that under certain conditions, TMP could have coefficients up to 498 × 10 5 pC/T. From these results, it was concluded that such a polymer-based device is suitable for monitoring electrical current in live wires, providing an interesting solution for non-invasive current transducers (CT) with a reduced footprint. These novel transducers can thus provide an effective replacement for coil-based CTs reducing installation cost and space, without the need for wire re-connection (as required by the coil CTs), enabling hot-plug capabilities, as well as providing a direct and cost-effective replacement for high-frequency current transformers.

28 May 2025 in Polymers
Verified
Journal Article
Open access
PDF file
Amélia Moreira SantosAmélia Moreira Santos
Amélia Moreira Santos
RMRui A.S. Moreira
Rui A.S. Moreira
Leonardo Souza CairesLeonardo Souza Caires
Leonardo Souza Caires
RLRonaldo da Maceno Lima
Ronaldo da Maceno Lima
Elvio Prado SilvaElvio Prado Silva
Elvio Prado Silva
Ruy Alberto Corrêa AltafimRuy Alberto Corrêa Altafim
Ruy Alberto Corrêa Altafim
This study explores the vibrational behavior of Thermoformed Magneto-Piezoelectrets (TMPs), multifunctional materials consisting of thermoformed piezoelectrets with open tubular channels integrated with an additional magnetic layer. The inverse piezoelectric effect was characterized using laser vibrometry analysis, measuring the mechanical response of TMPs subjected to electrical excitation over a frequency range of 0–20 kHz. Vibrational analysis was conducted at 144 spatial points, enabling the construction of detailed three-dimensional (3D) maps of the vibration operational modes and the spatial distribution of the piezoelectric coefficient (d33). The results demonstrated significant frequency-dependent behavior, with open channels exhibiting pronounced resonance peaks, whereas valleys displayed smoother and more uniform responses due to enhanced damping effects. The observed heterogeneity in vibrational behavior is attributed to structural variations, material composition, and anisotropic coupling between the piezoelectric and magnetic properties. The findings presented in this research provide a comprehensive understanding of the development and utilization of TMPs, offering parameters for enhancing their application and supporting new discoveries in studies related to the fabrication of novel thermoformed piezoelectric sensors.

2 April 2025 in IEEE Transactions on Dielectrics and Electrical Insulation
Verified
Journal Article
Open access
KSKenedy Marconi Geraldo dos Santos
Kenedy Marconi Geraldo dos Santos
MPMarcelo Perotoni
Marcelo Perotoni
Elvio Prado SilvaElvio Prado Silva
Elvio Prado Silva
Amélia Moreira SantosAmélia Moreira Santos
Amélia Moreira Santos
MNMarcela S. Novo
Marcela S. Novo
RMRui A.S. Moreira
Rui A.S. Moreira
Ensuring proper shielding is essential for the electromagnetic compatibility of electronic devices and systems. This article investigates the shielding effectiveness of coaxial cables and connectors using an electric field probe. The study aims to identify shielding failures early to prevent costly fixes later. A method for measuring the electric field radiated by connectors and cables in both near-field and far-field conditions is presented. Additionally, an electromagnetic virtual model of the connector and cable was developed, incorporating the dimensions and properties of the dielectric material. The simulations focused on the impact of different dielectrics on the resonant frequency of the electric field, specifically common-mode energy. The results showed that the dielectric properties do not affect the resonant frequency in the presence of a common-mode current distribution.

1 January 2024 in Journal of Microwaves, Optoelectronics and Electromagnetic Applications
Verified
Journal Article
Open access
PDF file
FAFilipe C. de Andrade
Filipe C. de Andrade
GMGiselle Francine B. Muniz
Giselle Francine B. Muniz
ABAna Karine D. C. Brandão
Ana Karine D. C. Brandão
KSKenedy Marconi Geraldo dos Santos
Kenedy Marconi Geraldo dos Santos
Polyane Alves SantosPolyane Alves Santos
Polyane Alves Santos
Tagleorge Marques SilveiraTagleorge Marques Silveira
Tagleorge Marques Silveira
The study proposes a multidimensional mathematical modeling of antennas using coaxial cables for 5G, with emphasis on the relationship between cable length, frequency, and VSWR. By employing a final configuration incorporating five circular slots of 6 mm and operating at a frequency of 3.5 GHz, a linear pattern in this relationship was identified. Despite the recognized challenges in accurately modeling VSWR concerning cable length, the study enabled antenna optimization through the determination of the proposed antenna’s properties and their respective mathematical correlations.

20 July 2022
Verified
Book Chapter
Closed access
PDF file
DCDouglas O. Campos
Douglas O. Campos
KSKenedy Marconi Geraldo dos Santos
Kenedy Marconi Geraldo dos Santos
DPDaniel J. C. Pereira
Daniel J. C. Pereira
Polyane Alves SantosPolyane Alves Santos
Polyane Alves Santos
LRLucas S. Ribeiro
Lucas S. Ribeiro
Tagleorge Marques SilveiraTagleorge Marques Silveira
Tagleorge Marques Silveira