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Michael Mattes

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Related publications (87)

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

Multipactor Analysis in Parallel-Plate Waveguides Loaded by a Single Dielectric Slab

Michael Mattes, Francisco Edén Sorolla Rosario, Apostolos Sounas

This paper studies the evolution of the multipactor discharge inside a parallel-plate waveguide partially loaded by a dielectric slab. The effect of static charges on the dielectric surface as well as of induced charges on the metallic plates are included. ...

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

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 ...

Institute of Physics2014

In Memoriam: Julien Perruisseau-Carrier

Juan Ramon Mosig, Michael Mattes

Institute of Electrical and Electronics Engineers2014

Effect of Digitally Modulated Signals on Multipactor Breakdown

Juan Ramon Mosig, Michael Mattes, Apostolos Sounas

This paper studies the effect of digitally modulated signals on the evolution of the multipaction phenomenon. Multipactor is numerically analyzed in a parallel plates waveguide for a variety of common digital modulation techniques. Breakdown power threshol ...

Ieee2013

Modeling microwave/electron-cloud interaction

Michael Mattes, Francisco Edén Sorolla Rosario, Frank Zimmermann

Starting from the separate codes BI-RME and ECLOUD or PyECLOUD, we are developing a novel joint simulation tool, which models the combined effect of a charged particle beam and of microwaves on an electron cloud. Possible applications include the degradati ...

2013

Dyadic Green's functions of a graphene layer and their efficient calculation

Juan Ramon Mosig, Michael Mattes, Ioannis Koufogiannis, Juan Sebastian Gomez Diaz

2013

On the numerical evaluation of Green functions for structures with graphene layers

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

2013

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

Effect of digitally modulated signals on Multipactor breakdown

Juan Ramon Mosig, Michael Mattes, Apostolos Sounas

2013

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

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

Modelling the interaction of electron clouds and microwaves

Michael Mattes, Francisco Edén Sorolla Rosario, Frank Zimmermann

This paper deals with the interaction of electron clouds with microwaves inside beam-pipes like the one of the LHC in CERN. The details of the model and recent results are presented during the conference. ...

Ieee2012

Real axis integration of Sommerfeld integrals with error estimation

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

2012

Prediction of Multipactor Breakdown for Multicarrier Applications: The Quasi-Stationary Method

Michael Mattes

A new prediction algorithm for multipactor breakdown determination in multicarrier signals is presented. This new algorithm assumes a quasi-stationary (QS) model based on the nonstationary theory for single-carrier signals. It determines the worst case, i. ...

Institute of Electrical and Electronics Engineers2012

Multipactor Analysis under Digitally Modulated Signals

Michael Mattes, Apostolos Sounas

2012

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

Coupling matrix synthesis of dissipative microwave filters

Michael Mattes, Francisco Edén Sorolla Rosario, Diego Navarro Tapia

This study reviews the coupling matrix synthesis of dissipative microwave filters. It compares it to the synthesis of lossless transfer functions and shows that by correctly interpreting the mathematical operations in the lossless case, that is especially ...

Institution of Engineering and Technology2011

Ionization Rates: a Comparative Study to Predict Corona Breakdown

Michael Mattes, Francisco Edén Sorolla Rosario, Ioannis Koufogiannis

2011

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