Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Concept

Radiation resistance

Publications associées (29)

Tunable radiator for small satellite application

Jean-Daniel Landis, Frédéric Bongard, Tomislav Debogovic, Pedro Robustillo Bayon

A tunable radiator for space application has been developed to meet stringent requirements in terms of electrical and environmental specifications but also low mass, simple manufacturing and low cost. The element is based on the folded PIFA antenna, with s ...

2016

Microfluidic Scintillation Detectors for High Energy Physics

Pietro Maoddi

This thesis deals with the development and study of microfluidic scintillation detectors, a technology of recent introduction for the detection of high energy particles. Most of the interest for such devices comes from the use of a liquid scintillator, whi ...

EPFL2015

Analysis and Design of Mobile Device Antenna-Speaker Integration for Optimum Over-the-Air Performance

Juan Ramon Mosig

In this paper, the mutual coupling between a mobile device antenna and a closely integrated miniature moving-coil speaker is investigated. The analysis focuses on the speaker radio-frequency harmonic resonance characteristics and the antenna radiation effi ...

Institute of Electrical and Electronics Engineers2015

Reconfigurable Pixel-Layer Isolator for Frequency-Tunable On-Frequency Repeaters

Daniel Rodrigo Lopez

The maximum gain in on-frequency repeaters is limited by the isolation level between their two antennas due to close-loop stability conditions. In this letter, a novel pixel-layer isolator for tunable on-frequency repeaters is presented. The scattered fiel ...

Institute of Electrical and Electronics Engineers2014

Frequency, Radiation Pattern and Polarization Reconfigurable Antenna Using a Parasitic Pixel Layer

Daniel Rodrigo Lopez

This communication presents a reconfigurable antenna capable of independently reconfiguring the operating frequency, radiation pattern and polarization. A switched grid of small metallic patches, known as pixel surface, is used as a parasitic layer to prov ...

Ieee-Inst Electrical Electronics Engineers Inc2014

Comparison of Cavity-based Ultra Wideband Antenna Efficiency Measurement Methods

Anja Skrivervik, Nuno Miguel Faria Pires

This article reviews the family of Ultra Wideband (UWB) antenna radiation efficiency measurement methods com- monly known as the UWB Wheeler cap. Measurement results of one UWB and two narrowband antennas are compared with the recently introduced source-st ...

2014

Dual-Polarized Partially Reflective Surface Antenna With MEMS-Based Beamwidth Reconfiguration

Julien Perruisseau-Carrier, Tomislav Debogovic

A partially reflective surface (PRS) antenna design enabling 1-bit dynamic beamwidth control is presented. The antenna operates at X-band and is based on microelectromechanical systems (MEMS) technology. The reconfigurable PRS unit cell monolithically inte ...

Institute of Electrical and Electronics Engineers2014

Predicting Input Impedance and Efficiency of Graphene Reconfigurable Dipoles Using a Simple Circuit Model

Julien Perruisseau-Carrier, Michele Tamagnone

An analytical circuit model able to predict the input impedance of reconfigurable graphene plasmonic dipoles is presented. A suitable definition of plasmonic characteristic impedance, employing natural currents, is used to for consistent modeling of the an ...

Institute of Electrical and Electronics Engineers2014

A novel, low-profile, vertically-polarized UWB antenna for WBAN

Anja Skrivervik, Jean-François Zürcher, Mohsen Koohestani

This paper proposes a novel, low-profile UWB antenna for wireless body area network (WBAN) applications. The antenna has a polarization perpendicular to the body-free-space interface, which is interesting in order to minimize the coupling into the body. It ...

Institute of Electrical and Electronics Engineers2014