Publications de Benjamin Fuchs

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Comparison of Regularization Techniques for Microwave Imaging of Brain Stroke

Jean-Philippe Thiran, Michael Mattes, Mina Bjelogrlic, Benjamin Fuchs

This paper studies the performance of three wellknown regularization techniques to solve the inverse problem encountered in differential microwave imaging for brain stroke applications. Reconstructions from a multi-illumination configuration based on measu ...

2018

On the born approximation for differential microwave imaging using volume integral equation formulation

Juan Ramon Mosig, Michael Mattes, Mina Bjelogrlic, Benjamin Fuchs

The Degree of Non-Linearity (DNL) of scattering problems and specifically of differential Microwave Imaging (dMWI) problems is addressed in this paper. The quantification of the DNL amounts to evaluate the validity range of the Born first order (linear) ap ...

2016

A printed transition for matching improvement of SIW horn antennas

Juan Ramon Mosig, Jean-François Zürcher, Marc Esquius Morote, Benjamin Fuchs

The substrate integrated waveguide (SIW) technology allows to construct several types of commonly used antennas in a planar way. However, frequency limitations associated to commercial substrates appear in the implementation of certain types of antennas, e ...

Institute of Electrical and Electronics Engineers2013

Synthesis of uniform amplitude focused beam arrays

Juan Ramon Mosig, Anja Skrivervik, Benjamin Fuchs

An iterative algorithm to synthesize uniform amplitude focused beam arrays is presented. While the number of array elements and the excitations are fixed and known, the locations of the elements are optimized to radiate a narrow beam low sidelobe pattern. ...

IEEE2013

Extended SIW for TEm0 and TE(0)n Modes and Slotline Excitation of the TE01 Mode

Juan Ramon Mosig, Jean-François Zürcher, Marc Esquius Morote, Benjamin Fuchs

A substrate integrated guide which allows the propagation of both TEm0 and TE0n modes is presented, the Extended Substrate Integrated Waveguide (ESIW). Its structure combines the working principles of SIWs and SINRD guides. While the performances of the ES ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Shaped Beam Synthesis of Arrays via Sequential Convex Optimizations

Juan Ramon Mosig, Anja Skrivervik, Benjamin Fuchs

A method to synthesize shaped beams with antenna arrays is presented. Specifically, the element excitations are determined such that the array radiates a power pattern that approximates a desired shape. To efficiently solve this problem, an iterative algor ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Enhancing the Performances of H-plane SIW Horn Antennas

Juan Ramon Mosig, Marc Esquius Morote, Benjamin Fuchs

The performances of SIW horns antennas diminish significantly when the substrate thickness is much smaller than the free space wavelength lambda(0). Specifically, the mismatch between the antenna aperture and the air yields to unwanted back radiation and p ...

Ieee2013

Benjamin Fuchs

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