Publications de Juan Ramon Mosig

Roger F. Harrington and the Method of Moments: Part 2: Electrodynamics

The method of moments (MOM), as introduced by Roger F. Harrington more than 50 years ago, is reviewed in the context of the classic potential integral equation (IE) formulations applied to both electrostatic (part 1) and electrodynamic or full-wave problem ...

Ieee-Inst Electrical Electronics Engineers Inc2024

Roger F. Harrington and the Method of Moments: Part 1: Electrostatics

Juan Ramon Mosig

The method of moments (MOM), as introduced by R. F. Harrington more than 50 years ago, is reviewed in the context of the classic potential integral equation (PIE) formulations applied to both electrostatic (part 1) and electrodynamic, or full-wave, problem ...

Ieee-Inst Electrical Electronics Engineers Inc2024

Low temperature and mTOR inhibition favor human epidermal stem cell maintenance

Juan Ramon Mosig, Fahd Azzabi Zouraq, Kai Johnsson, Yann Barrandon, Ariane Rochat, Thomas Michael Braschler, Johannes Alexander Mosig, Jean-Baptiste Bureau

ELSEVIER SCIENCE INC2023

Singular Behavior Analysis of Green’s Functions in Uniaxial Media Using Ordinary Differential Equations

Juan Ramon Mosig, Farhad Rachidi-Haeri, Marcos Rubinstein, Jose Felix Vega Stavro, Elias Per Joachim Le Boudec

We derive the electric and magnetic Green's functions in homogeneous dielectric uniaxial media by casting the problem as ordinary differential equations. These Green's functions feature an apparent singularity on the medium's distinguished axis. Using rigo ...

International Union of Radio Science (URSI)2023

On the Deficiency of the First-Order OttClemmow Saddle Point Method as Applied to the Sommerfeld Half-Space Problem

Juan Ramon Mosig

The accuracy of the first-order multiplicative (Ott-Clemmow) and additive (van der Waerden) modified saddle point integration methods for the Sommerfeld problem of a vertical Hertzian dipole over a lossy half-space is investigated using two theoretically e ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022

Sommerfeld Pole or Brewster Zero?: Zenneck Wave or Surface Plasmon?

Juan Ramon Mosig

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022

Sommerfeld Integrals and Their Relation to the Development of Planar Microwave Devices

Krzysztof Michalski, Juan Ramon Mosig

This paper deals with the mathematical expressions called Sommerfeld integrals. Introduced by A. Sommerfeld in 1909, they are mathematically equivalent to inverse Hankel transforms. The original historical goal of these integrals was to provide an accurate ...

Ieee-Inst Electrical Electronics Engineers Inc2021

On the Complete Radiation Pattern of a Vertical Hertzian Dipole Above a Low-Loss Ground

Krzysztof Michalski, Juan Ramon Mosig

The complete radiation field pattern of a vertical Hertzian dipole antenna on or above a lossless or low-loss dielectric half-space is studied using a rigorous Sommerfeld formalism. The reflected fields in the air above the interface and the subsurface fie ...

Ieee-Inst Electrical Electronics Engineers Inc2021

Direct FEM-Domain Decomposition Using Convex-to-Concave Spherical Ports for Space Applications

Juan Ramon Mosig, Javier Rubio, Pedro Robustillo Bayon

This letter proposes the application of a hybrid numerical technique to two cases of interest in the space business: the reallocation of radiators and scatters on satellite platforms; and the analysis of antennas for mobile communications. It is based on t ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2020

Dual-Band Circularly Polarized Transmitarray Antenna for Satellite Communications at (20 to 30) GHz

Juan Ramon Mosig, Hamed Hasani, Joana Rita Alves dos Santos Silva, Maria Garcia Vigueras, Santiago Capdevila Cascante

A novel dual-band polarization-independent transmitarray is introduced in this paper for communication systems in Ka-band. Thanks to its unit-cell topology, the transmitarray antenna demonstrates almost complete independent performance at two design freque ...

2019

Compact Orthomode Transducer with Broadband Beamforming Capability

Juan Ramon Mosig, Anja Skrivervik, Emile Jacques de Rijk

A compact and broadband orthomode transducer (OMT) with two dual linearly polarized ports is reported here for the first time. The component is based on a combination of two ridged Boifot junctions through a series of power dividers that act as an embedded ...

IEEE2018

Magnetoplasmonic enhancement of Faraday rotation in patterned graphene metasurfaces

Juan Ramon Mosig, Mihai Adrian Ionescu, Clara-Fausta Moldovan

2018

Remembering Erik Folke Bolinder Memoriam

Juan Ramon Mosig

2018

Stratified spherical model for microwave imaging of the brain: Analysis and experimental validation of transmitted power

Juan Ramon Mosig, Michael Mattes, Jean-Philippe Thiran, Mina Bjelogrlic, Benjamin Fuchs

2018

Four-Port Broadband Orthomode Transducer Enabling Arbitrary Interelement Spacing

Juan Ramon Mosig, Anja Skrivervik, Emile Jacques de Rijk, Tomislav Debogovic, Maria Garcia Vigueras, Santiago Capdevila Cascante, Esteban Menargues Gomez

This paper reports a novel methodology to design broadband orthomode transducers with two arbitrarily spaced ports carrying orthogonal linear polarizations. The component is based on a combination of two Boifot junctions through a series of power dividers ...

Institute of Electrical and Electronics Engineers2018

Nonlinear THz spectroscopy and simulation of gated graphene

Matthias Gäumann, Juan Ramon Mosig, Michele Tamagnone

We studied the nonlinear optical properties of single layer graphene using high terahertz (THz) fields. With the use of a back gate and cooling down the sample to cryogenic temperatures we are able to spectrally probe the nonlinear THz properties of intrin ...

IOP PUBLISHING LTD2018

Phase Corrected H-Plane Horn Antenna in Gap SIW Technology

Juan Ramon Mosig, Marc Esquius Morote, Lei Wang

This communication introduces a modified substrate integrated waveguide (SIW), the gap SIW, and deduces an approximate closed-form expression for calculating its effective width, taking into account the fringing and coupling fields around the gap. As an im ...

Ieee-Inst Electrical Electronics Engineers Inc2017

Experimental verification of optimal frequency range for microwave head imaging

Juan Ramon Mosig, Michael Mattes, Jean-Philippe Thiran, Mina Bjelogrlic, Benjamin Fuchs

This work presents the experimental verification of the power transmission of a radiating field into the human head for Microwave Imaging (MWI) applications. We aim at finding the range of frequencies that optimize the power scattered by any anomalies from ...

2017

Stereolithography-Based Antennas for Satellite Communications in Ka-Band

Juan Ramon Mosig, Joana Rita Alves dos Santos Silva, Tomislav Debogovic, Maria Garcia Vigueras

This paper illustrates the role of additive manufacturing (AM) as enabling technology to realize high-performance low-cost antennas for Ka-band applications. In addition to the inherent electromagnetic challenges implicit in the conception of such complex ...

Ieee-Inst Electrical Electronics Engineers Inc2017

High Gain Dual-Band Beam-Steering Transmit Array for Satcom Terminals at Ka-Band

Juan Ramon Mosig, Joana Rita Alves dos Santos Silva

Transmit array design is more challenging for dualband operation than for single band, due to the independent 360 degrees phase wrapping jumps needed at each band when large electrical length compensation is involved. This happens when aiming at large gain ...

Ieee-Inst Electrical Electronics Engineers Inc2017