Concept

Inductance

Publications associées (219)

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Piezoelectric thin films for bulk acoustic wave resonator applications

Roman Lanz

Bandpass filters for microwave frequencies realized with thin film bulk acoustic wave resonators (FBAR) are a promising alternative to current dielectric or surface acoustic wave filters for use in mobile telecommunication applications. With equivalent per ...

EPFL2004

Nonuniform transmission tower model for lightning transient studies

Mario Paolone, José-Luis Bermudez

This paper presents a new approach to model a transmission tower for lightning performance studies. It consists of representing each part of the tower by equivalent vertical and/or horizontal transmission lines as required. While horizontal line parameters ...

2004

Efficient and practical modeling of finite waveguide grating couplers

Hans Peter Herzig

The local interference method (LIME) is introduced as a tool for simulating guided mode excitation by finite gratings in monomode waveguides. This efficient and versatile calculation scheme considers each grating line as a scattering center radiating into ...

2004

Cubic millimeter power inductor fabricated in batch-type wafer technology

Martinus Gijs

A hybrid technology for the realization of three-dimensional (3-D) miniaturized power inductors is presented. Our devices consist of planar Cu coils on polyimide substrates, and mm-size ferrite magnetic cores, obtained by three-dimensional micro-patterning ...

2003

Etude de l'effet du brassage électromagnétique sur les microstructures d'alliages cuivreux

Thomas Campanella

In order to eliminate internal and surface defects, which appear in the ingots during continuous casting of metallic alloys, homogeneous and fine structures are often required. Therefore, when the adjunction of inoculant substances is not possible, the ele ...

EPFL2003

Configurable Front-End Converters for Multicurrent Locomotives Operated on 16 2/3 Hz AC and 3 kV DC Systems

Alfred Rufer, Christophe Chabert

A configurable converter topology is presented as front-end converter for a locomotive that can be operated as well on a high voltage ac-system as on a medium voltage dc-system. The configurable converter is realized on the base of a multilevel chain, wher ...

2003

Improvement of energy loss near edge structure calculation using Wien2k

Cécile Hébert

The density functional theory (DFT) is a recognised method for the calculation of electronic properties of materials. As such it can also be used for the calculation of energy loss near edge structures. Some care has to be taken since the DFT is intended f ...

2003

Contactless power and information transmission

Yves Perriard

In some applications, contacts between two devices are the first cause of dysfunctions. The aim of this paper is to transfer contactless power energy to add new functions to a tool (e.g., drill machine). A bidirectional communication is also needed. This i ...

2002

Vibrational coherence and solvent-induced non-adiabatic couplings

Majed Chergui

The ultrafast non-radiative relaxation processes between electronic states of Hg2 trapped in a cryogenic argon matrix after photon excitation at 266 nm is studied by mol. dynamics with quantum transitions (MDQT). Population transfer by matrix-induced coupl ...

2002

Contactless power and information transmission

Yves Perriard

In some applications, contacts between two devices are the first cause of dysfunctions. The aim of this study is to transfer contactless power energy to add new functions to a tool (drill machine for example). A bi-directional communication is also needed. ...

2001