Concept

Television antenna

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Adaptive Millimeter-Wave and THz Antenna Devices Based on Dielectric Elastomer Actuators

Pietro Romano

Dynamic reconfiguration of antenna devices is becoming a prime need in emerging telecommunication and remote sensing systems operating in the portion of the electromagnetic (EM) spectrum spanning from millimeter-wave (MMW) to terahertz. Different technique ...

EPFL2015

Human Body Proximity Effects on Ultra-Wideband Antennas

Mohsen Koohestani

Body-centric applications include wearable communication systems that can be integrated in many different applications, as for instance in military, security forces, sport, fashion, or medical. In the latter, the quality of life of patients can be greatly ...

EPFL2014

Integer-forcing Linear Receivers

Michael Christoph Gastpar

Linear receivers are often used to reduce the implementation complexity of multiple-antenna systems. In a traditional linear receiver architecture, the receive antennas are used to separate out the codewords sent by each transmit antenna, which can then be ...

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

A novel compact CPW-fed polarization diversity ultrawideband antenna

Anja Skrivervik, Mohsen Koohestani

A new compact coplanar-fed antenna suitable for polarization diversity in ultra-wideband applications is presented. The antenna consists of two identical monopoles which are printed on a low-loss substrate with 3 mm spacing and positioned perpendicular to ...

Institute of Electrical and Electronics Engineers2014

Controlling Scattering and Absorption With Metamaterial Covers

Romain Christophe Rémy Fleury

We discuss the use of metasurfaces and plasmonic metamaterials to minimize the scattering from receiving antennas and sensors, with the goal of maximizing their absorption efficiency. We first analytically study and highlight the potential of these approac ...

Institute of Electrical and Electronics Engineers2014

Multiple antenna

Julien Perruisseau-Carrier, Mohsen Yousefbeiki

A multi-input, multi-output antenna comprises an electrically conductive body, generally symmetrical about a plane of symmetry. An active port (Feed point) is located on the plane, a first parasitic port (1) is located on one side of the plane, and a secon ...

2014

Modeling of ion-cyclotron resonant heating in Wendelstein 7-X equilibrium

Jonathan Graves, Wilfred Anthony Cooper, David Pfefferlé, Jonathan Marc Philippe Faustin

W7X stellarator 3D equilibrium has been computed with the equilibrium code ANIMEC (Anisotropic Neumann Inverse Moments Equilibrium Code). This equilibrium was used to model ICRH minority heating in 4He(H) plasma with the 3D full-wave code LEMan (Low freque ...

2014

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

Nano-SAW Devices for Wireless Identification

Florian Bienefelt

Surface Acoustic Wave (SAW) technology is omnipresent in the devices around us today, mainly used as passive bandpass filters in most radio systems like smartphones and TV antennas or as delay lines in telecommunications. More recently, the possibility to ...

2014