Publications de Michel Declercq

A Closed-Loop Remote Powering Link for Wireless Cortical Implants

Michel Declercq, Catherine Dehollain, Kanber Mithat Silay

This paper presents a closed-loop remote powering link for wireless cortical implants. The link operates from a single power supply at the external reader and delivers power to the implant adaptively under changing load conditions. A feedback information i ...

Institute of Electrical and Electronics Engineers2013

A 0.24-nJ/bit Super-Regenerative Pulsed UWB Receiver in 0.18-mu m CMOS

Michel Declercq, Catherine Dehollain

This paper describes a receiver system design for impulse-radio ultra-wideband (IR-UWB) that operates at two carrier frequencies-3.494 and 3.993 GHz-with a 10-Mbps data rate. To reduce the power consumption of the front-end amplifiers, a super-regenerative ...

2011

Influence of chelating agents on the tribocorrosion of tungsten in sulphuric acid solution

Didier Bouvet, Michel Declercq, Stefano Mischler, Jelena Stojadinovic

The corrosion and tribocorrosion of tungsten in 0.01 M H2SO4, without and with the presence of lactic acid and phosphoric acid as chelating agents was studied here. ...

2011

Inductive Power Link for a Wireless Cortical Implant With Two-Body Packaging

Michel Declercq, Catherine Dehollain, Kanber Mithat Silay

This paper presents an inductive power link for remote powering of a wireless cortical implant. The link includes a Class-E power amplifier, a gate driver, an inductive link, and an integrated rectifier. The coils of the inductive link are designed and opt ...

Institute of Electrical and Electronics Engineers2011

Wireless Voltage Regulation for Passive Transponders Using an IF to Communicate

Michel Declercq, Catherine Dehollain, Nicolas Pillin

This paper presents a novel architecture for wireless communication systems made up of a base station and a remotely powered transponder. The architecture enables the base station to perform wireless voltage regulation (WVR) of the rectifier's output volta ...

2010

Method for wireless transmission between two electroacoustic transducers, and device for carrying out said method

Michel Declercq, Patrick Favre

The invention relates to a method and a device for wireless transmission between at least one first transducer (T1) arranged in a first location and at least one second transducer (T2) arranged in a second location remote from the first location without us ...

2010

Read Range Limitation in IF-Based Far-Field RFID Using ASK Backscatter Modulation

Michel Declercq, Catherine Dehollain, Nicolas Pillin

A model is proposed to describe the fundamental read range limitation due to the local oscillator phase noise in the reader, in IF-based, far-field RFID systems using amplitude-shift keying backscatter modulation. The relation between the system parameters ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

A multi-band PLL based tuning circuitry for the super-regenerative IR-UWB receiver system

Michel Declercq, Catherine Dehollain

The impulse radio-ultra wide band (IR-UWB) signalling format has been an attractive mode for wireless communication in wireless sensor node system. The super-regenerative principle can be used for impulse reception for its inherent advantages. The oscillat ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Electrochemically controlled wear transitions in the tribocorrosion of ruthenium

Didier Bouvet, Michel Declercq, Stefano Mischler, Jelena Stojadinovic

This work presents an investigation of the tribocorrosion of ruthenium in sulphuric acid solutions. The study was focused on the effect of the electrode potential on wear of ruthenium during sliding against an inert alumina ball in a reciprocating sliding ...

2009

Effect of electrode potential on the tribocorrosion of tungsten

Didier Bouvet, Michel Declercq, Stefano Mischler, Jelena Stojadinovic

The tribocorrosion behavior of tungsten sliding against an alumina ball was evaluated in sulfuric acid under applied electrode potential. Surface chemistry of worn and unworn surfaces was evaluated using XPS and AES. Quasi-potentiostatic polarization curve ...

2009

A 7.5mA 500 MHz UWB receiver based on super-regenerative principle

Michel Declercq, Catherine Dehollain

Low power impulse radio-ultra wide band(IR-UWB) receivers have potential application in the area of wireless sensor networks. In this paper the possibility of super-regenerative receivers for pulse detection is demonstrated. The super-regenerative receiver ...

2008

High Data Rate RFID Tag/Reader Architecture Using Wireless Voltage Regulation

Michel Declercq, Catherine Dehollain, Nicolas Pillin

This paper discusses a novel tag/reader system, based on the passive, far-field RFID principle, with megabits per second read capability at operating ranges of several centimeters. The system operates in the ISM band at 2.45 GHz. A maximum data rate of 4 M ...

2008

Noise analysis in super-regenerative receiver systems

Michel Declercq, Catherine Dehollain

The recent increase in the need for energy efficient wireless nodes have led to the study of various low power consumption receiver and transmitter architectures. The super-regenerative receiver architecture is one of the possible candidates for such a low ...

2008

Numerical analysis of temperature elevation in the head due to power dissipation in a cortical implant

Michel Declercq, Catherine Dehollain, Kanber Mithat Silay

2008

Orthogonally oriented coils for minimization of cross-coupling in cortical implants

Michel Declercq, Catherine Dehollain, Kanber Mithat Silay

This article presents the design of the inductive links of remotely powered wireless cortical implants for minimum interference from the power link to the data link. This interference is minimized by changing the orientation of the inductors. Different ori ...

2008

Improvement of power efficiency of inductive links for implantable devices

Michel Declercq, Catherine Dehollain, Kanber Mithat Silay

This paper presents the analysis of inductive links for remote powering of implantable devices and a method to improve the power link efficiency by modifying the geometrical parameters of planar spiral inductors. The analysis of the inductive links include ...

2008

Impact of Lateral Nonuniform Doping and Hot Carrier Injection on Capacitance Behavior of High Voltage MOSFETs

Michel Declercq, Mihai Adrian Ionescu, Yogesh Singh Chauhan

A detailed analysis of capacitance behavior of high-voltage MOSFET (HV-MOS), for example, LDMOS, using device simulation is made. The impact of lateral nonuniform doping and drift region are separately analyzed. It is shown that the peaks in C-GD and C-GS ...

2008

Compact Modeling of Suspended Gate FET

Michel Declercq, Mihai Adrian Ionescu, Christoph Eggimann, Yogesh Singh Chauhan, Nicolas Abelé, Dimitrios Tsamados

For the first time, a compact model for suspended gate (SG) FET valid for entire bias range is proposed. The model is capable of simulating both pull-in and pull-out effects, which are the two important phenomena of this device. A novel hybrid numerical si ...

2008

An 11-Mb/s 2.1-mW Synchronous Superregenerative Receiver at 2.4 GHz

Michel Declercq, Catherine Dehollain

This paper presents a low-voltage low-power high-speed superregenerative receiver operating in the 2.4-GHz industrial-scientific-medical band. The receiver uses an architecture in which, thanks to the presence of a phase-locked loop, the quench oscillator ...

Institute of Electrical and Electronics Engineers2007

Capacitorless 1T DRAM sensing scheme with automatic reference generation

Michel Declercq, Maher Kayal, Serguei Okhonin, Marc Pastre, Louis Harik

To perform a current sensing in capacitorless 1-transistor (IT) DRAMs on SOI, we have developed a sensing scheme with automatic reference generation. The reference current is generated by an adjustable current source. The electrical calibration of the refe ...

2006