Home

Person

Michael Mattes

This person has left EPFL

About
Privacy
Disclaimer

Graph Chatbot

Related publications (86)

Page 1 of 5

On the application of symmetry conditions and the convergence rate of modal series in the MoM-based integral equation analysis of laterally shielded multilayered media

Juan Ramon Mosig, Michael Mattes, Laleh Golestanirad

Integral equation (IE) formulations.solved by the Method of Moments (MoM) have been used successfully to address a vast variety of electromagnetic problems. Printed circuits embedded partially or totally in laterally bounded multilayered media,such as micr ...

2010

A superconducting diplexer for cosmic microwave background experiments

Juan Ramon Mosig, Michael Mattes, Mohammadreza Madi

Cosmic microwave background (CMB) studies require observations in several frequency bands simultaneously. For example, the detection of clusters of remote galaxies can be performed by comparing CMB photon fluxes at different frequencies, using the spectral ...

IOP Publishing Ltd2014

Microwave Corona Breakdown Prediction in Arbitrarily-Shaped Waveguide Based Filter

Michael Mattes, Francisco Edén Sorolla Rosario

This paper describes an efficient algorithm to predict the RF gas breakdown power threshold in microwave devices with complex geometries. The two necessary calculations when investigating such a phenomenon have been performed: on the one hand, the computat ...

Institution of Engineering and Technology2010

Orthomode Transducer and Dual-Polarized Horn Antenna in Substrate Integrated Technology

Juan Ramon Mosig, Michael Mattes, Marc Esquius Morote

A dual-polarized system fully implemented in substrate integrated technology is presented. It comprises an Orthomode Transducer (OMT) with planar excitation schemes for both orthogonal TE10 and TE01 modes and a dual-polarized horn antenna. The whole struct ...

Institute of Electrical and Electronics Engineers2014

Multipactor theory for multi-carrier signals

Michael Mattes

This work presents a new theory of multipactor under multi-carrier signals for parallel-plate geometries. It is the generalization of the non-stationary multipactor theory for single-carrier signals1. It is valid for multicarrier signals with an arbitrary ...

American Institute of Physics2011

Advanced Analysis of Propagation Losses in Rectangular Waveguide Structures Using Perturbation of Boundary Conditions

Michael Mattes

In this paper, propagation losses effects present in rectangular waveguide structures are rigorously considered. For this purpose, a new formulation based on the perturbation of the boundary conditions on the metallic walls of the waveguides combined with ...

2011

Introducing symmetry conditions in the integral equation technique applied to quasi-waveguide structures

Juan Ramon Mosig, Michael Mattes, Laleh Golestanirad

Integral Equation (IE) formulation solved by Method of Moments may be used efficiently to address the problem of quasi-waveguide structures, i.e. structures consisting of a main waveguide with a constant cross section that may bear an arbitrary number of p ...

2009

Non-linear interpolation and adaptive sampling of scattering parameters

Michael Mattes

The accurate and efficient sampling of scattering parameters is addressed. A popular sampling technique is the uniform sampling combined with a straight-line interpolation for representing the continuous variation of the observable. However, this sampling ...

2010

Complete network characterisation of stratified planar circuits using the method of moments technique: an integrated approach to lumped and wave ports

Juan Ramon Mosig, Michael Mattes, Laleh Golestanirad

This study gives a full treatment of the network characterisation of multi-port planar circuits embedded in shielded stratified media with an integrated approach to lumped ports and wave ports. The details of the mathematical formulation for the retrieval ...

Institution of Engineering and Technology2011

Nonlinear sampling technique for microwave devices

Michael Mattes

This communication addresses the problem of any simulation tool: the accurate and efficient sampling of a physical observable with respect to a parameter. A popular sampling technique is the uniform sampling combined with a straight-line interpolation for ...

2009

Microwave gas breakdown in elliptical waveguides

Michael Mattes, Francisco Edén Sorolla Rosario, Ioannis Koufogiannis

This paper analyzes the microwave gas discharge within elliptical waveguides excited by the fundamental mode. The Rayleigh-Ritz method has been applied to solve the continuity equation. The eigenvalue problem defined by the breakdown condition has been sol ...

American Institute of Physics (AIP)2014

Mixed Potentials for Planar Multilayered Structures Including Conductive Interfaces

Juan Ramon Mosig, Michael Mattes, Ioannis Koufogiannis

A complete and automatized strategy has been developed to derive the Vector and Scalar Potential Green’s Functions (GFs) of planar multilayered structures that include conductive sheets. The propagator matrix technique is enhanced to include conductive she ...

2014

Considerations on double exponential-based cubatures for the computation of weakly singular Galerkin inner products

Juan Ramon Mosig, Michael Mattes, Athanasios Polymeridis, Ioannis Koufogiannis

Highly accurate and efficient cubatures based on the double exponential quadrature rules are presented for the computation of weakly singular integrals arising in Galerkin mixed potential integral equation formulations. Due to their unique ability to handl ...

Institute of Electrical and Electronics Engineers2012

Multipactor saturation in parallel-plate waveguides

Michael Mattes, Francisco Edén Sorolla Rosario

The saturation stage of a multipactor discharge is considered of interest, since it can guide towards a criterion to assess the multipactor onset. The electron cloud under multipactor regime within a parallel-plate waveguide is modeled by a thin continuous ...

2012

Rigorous evaluation of propagation losses in arbitrarily shaped waveguide structures using boundary integral – resonant mode expansion and perturbation of boundary conditions

Michael Mattes

The accurate consideration of propagation losses in arbitrarily shaped waveguide-based structures is studied in this paper. For such a purpose, a software tool based on the perturbation of the boundary conditions on the waveguide metallic walls and on the ...

Inst Engineering Technology-Iet2014

Combined Field Integral Equation Technique to Model Fine Slots Embedded in Laterally Shielded Multilayered Media

Juan Ramon Mosig, Michael Mattes, Laleh Golestanirad

This paper presents the details of development and computer implementation of Combined Field Integral Equation (CFIE) technique used in the framework of Method of Moments to address the problem of simulating fine slots appearing in grounded screens embedde ...

2009

Analyzing Corona breakdown with a finite element-based electromagnetic solver

Juan Ramon Mosig, Michael Mattes, Francisco Edén Sorolla Rosario, Ioannis Koufogiannis

This paper demonstrates how an already developed finite element code for solving electromagnetic problems can be manipulated and simply extended so as to investigate complicated corona breakdowns. A safe criterion based on the eigenvalue analysis is used i ...

2013

NxN Coupling Matrix Synthesis of Dissipative Microwave Filters

Michael Mattes, Francisco Edén Sorolla Rosario

In this communication, the coupling matrix synthesis of dissipative microwave filters is analyzed and compared to the synthesis of lossless filters. A modified definition of the vector matrix product allows using the same synthesis procedure in both cases. ...

2011

Integral Equation Modeling of Waveguide-Fed Planar Antennas

Juan Ramon Mosig, Michael Mattes, Ivica Stevanovic, Francesco Merli, Pedro Crespo Valero

This paper presents a method for the analysis of planar multilayered waveguide-fed antennas. The method combines mixed-potential integral equations (for laterally open regions) and modal field integral equations (for laterally closed regions) with a seamle ...

Institute of Electrical and Electronics Engineers2009

Algorithm to calculate a large number of roots of the cross-product of Bessel functions

Juan Ramon Mosig, Michael Mattes, Francisco Edén Sorolla Rosario

This paper describes an algorithm to calculate a large number of roots of the cross-product of Bessel functions and of their first derivatives. The algorithm initially finds the roots of the zeroth order using an auxiliary function that exhibits the same r ...

Institute of Electrical and Electronics Engineers2013