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Catherine Dehollain

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Publications associées (140)

Instrumented Knee Prosthesis for Force and Kinematics Measurements

Steve Tanner, Kamiar Aminian, Philippe Renaud, Catherine Dehollain, Arnaud Bertsch, Peter Ryser, Eric Meurville, Pierre-André Farine, Oguz Atasoy, Brigitte Jolles-Haeberli, Arash Arami, Willyan Hasenkamp Carreira, Shafqat Ali, Matteo Simoncini

In this work, we present the general concept of an instrumented smart knee prosthesis for in-vivo measurement of forces and kinematics. This system can be used for early monitoring of the patient after implantation and prevent possible damage to the prosth ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Modeling and Benchmarking Ultra-Wideband Localization for Mobile Robots

Alcherio Martinoli, Catherine Dehollain, Edmund James Colli-Vignarelli, Alexander Bahr

Ultra-Wideband Impulse Radio (UWB-IR) is a technology that has great potential to solve numerous mobile robotic and asset tracking problems in GPS-denied environments. Our goal is to help software and hardware designers in improving the state-of-the-art in ...

2012

A termination scheme using intended asymmetric spatial filter response for averaging flash A/D converter

Catherine Dehollain, Shenjie Wang

Averaging network is adopted to reduce the front-end amplifier's offset in the flash analog-to-digital converter (ADC) commonly at the cost of the boundary threshold error. Such error worsens the integral-nonlinearity and introduces distortion. An averagin ...

Springer Verlag2012

Remote Powering Realization for Smart Orthopedic Implants

Catherine Dehollain, Oguz Atasoy

This paper presents a remote powering realization for smart orthopedic implants with a full-wave rectifier and a voltage doubler. The measured power efficiency of the rectifier at 13.56 MHz is 80% for an output power of 20 mW with 2.2 V output. The rectifi ...

Ieee2012

Theoretical Study for Safe and Efficient Energy Transfer to Deeply Implanted Devices Using Ultrasound

Catherine Dehollain

The goal of this paper is to prove that a safe and efficient energy transfer is possible between an external transducer located on the patient's skin and a device deeply implanted in the abdomen. An ultrasound propagation model based on the Rayleigh-Sommer ...

Institute of Electrical and Electronics Engineers2012

IR-UWB transmitter

Jean-Yves Le Boudec, Catherine Dehollain, Edmund James Colli-Vignarelli

A generator of very short pulses where a cascade of inverters of arbitrary length characterized in that said inverters are adapted to produce pulses on their power supply line instead of their usual output. ...

2012

Fully Integrated Biochip Platforms for Advanced Healthcare

Catherine Dehollain, Giovanni De Micheli, Andrea Cavallini, Sandro Carrara, Jacopo Olivo, Irene Taurino, Camilla Baj-Rossi, Seyedeh Sara Ghoreishizadeh, Wayne Burleson

Recent advances in microelectronics and biosensors are enabling developments of innovative biochips for advanced healthcare by providing fully integrated platforms for continuous monitoring of a large set of human disease biomarkers. Continuous monitoring ...

Mdpi Ag2012

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

Toward the Deployment of an Ultra-Wideband Localization Test Bed

Alcherio Martinoli, Catherine Dehollain, Edmund James Colli-Vignarelli, Alexander Bahr

The design, development, and deployment of Ultra-Wideband (UWB) localization systems involves digital and Radio-Frequency (RF) hardware, embedded software, localization algorithms, security and reliability aspects, electromagnetics, and others. Design and ...

2011

A fully on-chip LDO voltage regulator with 37 dB PSRR at 1 MHz for remotely powered biomedical implants

Catherine Dehollain, Alexandre Schmid, Yusuf Leblebici, Kanber Mithat Silay, Vahid Majidzadeh Bafar

This article presents a fully on-chip low-power LDO voltage regulator dedicated to remotely powered wireless cortical implants. This regulator is stable over the full range of alternating load current and provides fast load regulation achieved by applying ...

Springer US2011

Instrumented Prosthesis for Knee Implants Monitoring

Steve Tanner, Kamiar Aminian, Philippe Renaud, Catherine Dehollain, Arnaud Bertsch, Peter Ryser, Eric Meurville, Hooman Dejnabadi, Pierre-André Farine, Oguz Atasoy, Brigitte Jolles-Haeberli, Arash Arami, Willyan Hasenkamp Carreira, Shafqat Ali, Matteo Simoncini

In this work we present an instrumented smart knee prosthesis for in-vivo measurement of forces and kinematics. Studying the constraints, we designed minimal sensory systems to be placed in the polyethylene part of the prosthesis. The magnetic sensors and ...

IEEE2011

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

A Discrete-Components Impulse-Radio Ultrawide-Band (IR-UWB) Transmitter

Catherine Dehollain, Edmund James Colli-Vignarelli

We describe an impulse-radio ultra-wideband (IR-UWB) transmitter made with off-the-shelf discrete components. It was initially designed to be used in a UWB testbed for measurement and algorithm validation purposes. There already exist several versions of a ...

Institute of Electrical and Electronics Engineers2011

Tunable band-stop filter based on single RF MEMS capacitive shunt switch with meander arm inductance

Catherine Dehollain, Mihai Adrian Ionescu, Montserrat Fernandez-Bolanos Badia

This paper presents a novel high-frequency tunable band-stop filter concept based on a single MEMS capacitive shunt device which uses meander arm anchoring inductors and with a total size of 300 × 600 μm. Tuning ranges of the central frequency in the order ...

Elsevier2010

A discrete-components impulse-radio UWB Low-Noise Amplifier with voltage controlled-gain

Catherine Dehollain, Edmund James Colli-Vignarelli

We describe an Ultra-Wide Band Low-Noise Amplifier (LNA) with a variable gain that works in the 4.0 GHz to 4.5 GHz frequency range and is made with off-the-shelf discrete components. This LNA has a 30 dB variable gain and a noise figure of 2.2 dB. It was i ...

2010

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

Centre frequency and bandwidth tunable bandpass filter based on RF MEMS (10-14 GHz)

Catherine Dehollain, Mihai Adrian Ionescu, Montserrat Fernandez-Bolanos Badia, Suat Ayoz

This paper presents a novel tunable bandpass filter design with independent control of both the centre frequency and the bandwidth by means of analogue-series and digital-shunt MEMS capacitors. The filter is designed for operation in X and Ku bands with 4 ...

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

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

Highly Tunable Band-Stop Filters Based on AIN RF MEM Capacitive Switches with Inductive Arms and Zipping Capacitive Coupling

Catherine Dehollain, Mihai Adrian Ionescu, Montserrat Fernandez-Bolanos Badia, Dimitrios Tsamados

This paper presents wideband tunable band-stop filters working in the Ku to Ka-band frequencies based on a miniature single-MEM device combining a central capacitive MEM switch with AlN dielectric and inductive suspension arms. An outstanding 55% tuning ra ...

IEEE2009

Tunable band-stop filter based on single RF MEMS capacitive shunt switch with meander arm inductance

Catherine Dehollain, Mihai Adrian Ionescu, Montserrat Fernandez-Bolanos Badia

This paper presents a novel high-frequency filter concept based on a single MEMS capacitive shunt structure using meander arm inductance. Tuning ranges of the central frequency in the order of 55% are experimentally demonstrated for filters operating betwe ...

2009

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