0000000000335936

AUTHOR

Ismael Molina

showing 3 related works from this author

Analysis of different Sleeve Ferrite Cores Performance according to their Dimensions

2019

Sleeve ferrite core is an EMI suppressor widely used to reduce the conductive and radiated electromagnetic noise in cables. The interconnection of different electronic systems through cables is becoming more difficult due to the hard restrictions related to EMC compliance requirements. Thereby, the research of new solutions able to provide a great attenuation ratio in a wide frequency band is a challenge. This contribution focuses on analyzing and comparing the performance of a novel sleeve ferrite solution based on a nanocrystalline (NC) structure with several materials with different compositions. This component is able to provide a high initial permeability value at the same time that ma…

InterconnectionMaterials scienceFrequency bandAcoustics020206 networking & telecommunications02 engineering and technology021001 nanoscience & nanotechnologyFerrite coreEMIvisual_art0202 electrical engineering electronic engineering information engineeringvisual_art.visual_art_mediumFerrite (magnet)Ceramic0210 nano-technologyElectrical impedanceElectrical conductor2019 International Symposium on Electromagnetic Compatibility - EMC EUROPE
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Study of a Novel High Permeability Ferrite Sheet Intended for Near Field Communication Systems

2019

The reduction of embedded portable devices involves a magnetic field interference problem when it integrates Near Field Communication (NFC) due to the presence of conductive surfaces such as ground planes, batteries or metallic enclosures. This contribution is focused on analyzing the ability of an innovative magnetic shielding based on flexible sintered ferrite sheets (FSFS) with the aim of improving the performance of that kind of systems. Thereby, a NFC emitter antenna is characterized when it is close to a conductive surface through an electromagnetic (EM) scanner. The EM scanner composed by a matrix of near field probes that make it possible to determine the effectiveness of the FSFS. …

ScannerMaterials scienceAcoustics020208 electrical & electronic engineering020206 networking & telecommunicationsNear and far field02 engineering and technologyNear field communicationMagnetic fieldElectromagnetic shielding0202 electrical engineering electronic engineering information engineeringFerrite (magnet)Electrical conductorCommon emitter2019 IEEE International Symposium on Electromagnetic Compatibility, Signal & Power Integrity (EMC+SIPI)
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Determination of Core Size Dependency on the EMI Suppression in Cable Ferrites

2020

Electromagnetic Compatibility (EMC) engineering should be approached via the systems approach, considering EMC throughout the design to anticipate possible electromagnetic interferences (EMI) problems. Nevertheless, an EMI source may appear when the designed device is supplied via an external power system or it is connected to another device to communicate to it. In these both cases, the cables or interfaces that interconnect the systems could represent the EMI source. Thereby, one of the most common techniques for reducing EMI in cables is the application of an EMI suppressor such as sleeve ferrite cores to them. The advantage of this solution is that it does not involve redesign the elect…

010302 applied physicsInterconnectionComputer scienceElectromagnetic compatibility02 engineering and technology021001 nanoscience & nanotechnology01 natural sciencesFerrite coreInductanceElectric power systemInterference (communication)EMI0103 physical sciencesElectronic engineeringElectronics0210 nano-technology2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE
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