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Concept

Susceptance

Publications associées (17)

Systems and methods for energy-efficient measurement of neurophysiological oscillations

Mahsa Shoaran, Uisub Shin

A system for measuring synchrony between two or more regions, or within a single region, of a subject's brain. The system can include a signal conditioning module in communication with a phase extraction module. The signal conditioning module can receive a ...

2022

Aux portes du monde miroir

Frédéric Kaplan, Isabella Di Lenardo

The Mirror World is no longer an imaginary device, a mirage in a distant future, it is a reality under construction. In Europe, Asia and on the American continent, large companies and the best universities are working to build the infrastructures, to defin ...

2021

Terminal Characteristics Measurements and Analysis of the Three-Phase Active Front End Converter Building Block

Drazen Dujic, Marko Petkovic

The safe and reliable operation of modern power system imposes the need to describe and estimate the system stability through impedance-admittance measurement and identification. The integration and operation of medium voltage equipment in existing infrast ...

Wiley2021

Single-Phase Measurement of the Output Impedance of the Four-Quadrant Cascaded H-Bridge Converter Cell Using Wideband Signals

Drazen Dujic, Marko Petkovic

The development and integration of power electronics equipment and converters for medium voltage ac and dc application has created different subsystem interactions that require proper investigation, understanding, description and estimation of global syste ...

IEEE2020

Hardware-in-the-Loop Characterization of Source-Affected Output Characteristics of Cascaded H-Bridge Converter

Drazen Dujic, Marko Petkovic

Recent trends in power system design such as an increasing share of renewable energy sources and integration of power electronics equipment for medium voltage applications are creating different subsystem interactions that require proper investigation, und ...

2021

Intrinsic or nucleation-driven switching: An insight from nanoscopic analysis of negative capacitance Hf1-xZrxO2-based structures

Mihai Adrian Ionescu, Igor Stolichnov, Matteo Cavalieri, Carlotta Gastaldi

HfO2-based ferroelectrics have dramatically changed the application perspectives of polarization-switching materials for information processing and storage. Their CMOS compatibility and preservation of high reversible polarization down to a few nanometer t ...

AMER INST PHYSICS2020

Impedance and Admittance Formulas for a Multistair Model of Transmission Towers

Farhad Rachidi-Haeri

This article discusses formulas for the surge/ characteristic impedance of vertical conductors. Calculated results of the surge impedance are compared with measured results on vertical conductors and transmission towers. The accuracy of the available time- ...

2020

Origin of apparent light-enhanced and negative capacitance in perovskite solar cells

Ulf Anders Hagfeldt, Wolfgang Richard Tress

So-called negative capacitance seems to remain an obscure feature in the analysis of the frequency-dependent impedance of perovskite solar cells. It belongs to one of the puzzling peculiarities arising from the mixed ionic-electronic conductivity of this c ...

Springer2019

Negative capacitance tunnel F£Ts: Experimental demonstration of outstanding simultaneous boosting of on-current, transconductance, overdrive, and swing

Mihai Adrian Ionescu, Farzan Jazaeri, Igor Stolichnov, Ali Saeidi

This paper demonstrates and experimentally reports the highest ever performance boosting in strained silicon-nanowire homojunction TFETs with negative capacitance, provided by matched PZT capacitors. Outstanding enhancements of I on , g m , and overdrive a ...

IEEE2018

Cascaded H-Bridge Multilevel Converter for a High-Power Medium-Voltage Impedance-Admittance Measurement Unit

Drazen Dujic, Francisco Daniel Freijedo Fernández, Marko Petkovic, Nicolai Hildebrandt

Recent trends in power system design and inclusion of renewable energy sources and smart grids are creating different subsystem interactions that require proper investigation, understanding, describing and estimating global system stabilitythrough impedanc ...

2018

Design Considerations of Ferroelectric Properties for Negative Capacitance MOSFETs

Mihai Adrian Ionescu, Christian Enz, Farzan Jazaeri, Ali Saeidi

Impact of physical parameters of ferroelectric layer on the performance of Negative Capacitance (NC) MOSFETs is experimentally studied in this paper. Electrical behaviors of PZT-based and Si:HfO2-based NC-FETs are investigated and discussed. In a PZT-based ...

2018

Negative Capacitance Tunnel FETs: Experimental Demonstration of Outstanding Simultaneous Boosting of On-current, Transconductance, Overdrive, and Swing

Mihai Adrian Ionescu, Farzan Jazaeri, Igor Stolichnov, Ali Saeidi

2017

Low-energy biomarker detection through charge-based impedance measurements

Mihai Adrian Ionescu, Marco Mazza, Junrui Zhang

A novel approach for the detection of biomarkers in aqueous condition via differential impedance is presented. The binding of biomarkers onto functionalized inter-digital electrodes induces a change in the sensor impedance, both in its real and imaginary c ...

2016

Sensorless Electroacoustic Absorbers Through Synthesized Impedance Control for Damping Low-Frequency Modes in Cavities

Hervé Lissek, Romain Boulandet, Etienne Thierry Jean-Luc Rivet

This paper presents a concept of sensorless electroacoustic absorber for damping the low-frequency modes in a cavity such as a duct or a room. Taking advantage of the reciprocity of the voice coil transducer, it is shown that a synthetic electrical admitta ...

S Hirzel Verlag2016

Power-Efficient Pipelined Analog-to-Digital Converter Architectures for Advanced CMOS Technologies

Among different analog-to-digital converter (ADC) architectures pipelined ADCs are the most suited for medium sampling frequencies (50-300MSPS) and medium resolutions, i.e. 8 to 14 bits. Having the lowest figure-of-merit (FOM) in its bandwidth and resoluti ...

EPFL2012

Electromechanical properties of Al0.9Sc0.1N thin films evaluated at 2.5 GHz film bulk acoustic resonators

Paul Muralt, Silviu Cosmin Sandu, Ramin Matloub Aghdam, Evgeny Milyutin

AlN films are employed in RF filters for wireless communication. We report on enhanced coupling factors k(t)(2) obtained by partial substitution of Al by Sc. Al0.88Sc0.12N films were deposited by reactive magnetron sputtering from an Al0.9Sc0.1 alloy targe ...

AIP American Institute of Physics2011

Crossover from capacitive to pseudoinductive charge-relaxation in organic/polymeric light-emitting diodes

Frank Nüesch, Libero Zuppiroli

In this work we propose a phenomenological microscopic approach to deal with pseudoinductive charge-relaxation processes (named also as negative capacitance phenomena) in organic molecules (tris-8-hydroxyquinoline-aluminum) and polymeric [poly(2-metoxy-5-( ...

AIP2005