Thomas Rylander

Docent at Electrical Engineering, Signalbehandling och medicinsk teknik, Signal Processing

Thomas Rylander is an Associate Professor in the Signal processing research group.

Source: chalmers.se

Projects

2011–2014

Model-based Reconstruction and Classification Based on Near-Field Microwave Measurements

Mats Viberg Signal Processing
Mikael Persson Biomedical Electromagnetics
Tomas McKelvey Signal Processing
Thomas Rylander Signal Processing
Jian Yang Antennas
Lennart Svensson Signal Processing
Swedish Research Council (VR)

2014–2017

Safe inductive energy transfer for electric vehicles

Tomas McKelvey Signal Processing
Thomas Rylander Signal Processing
JOHAN WINGES Signal Processing
Swedish Energy Agency

There might be more projects where Thomas Rylander participates, but you have to be logged in as a Chalmers employee to see them.

Publications

2017

System Identification and Tuning of WPT Systems

Johan Winges, Thomas Rylander, Tomas McKelvey et al
2017 IEEE 17th International Conference on Environment and Electrical Engineering (EEEIC)
Conference paper - peer reviewed
2017

Compressed Sensing for the Detection and Positioning of Dielectric Objects Inside Metal Enclosures by Means of Microwave Measurements

Johan Winges, Livia Cerullo, Thomas Rylander et al
IEEE Transactions on Microwave Theory and Techniques. Vol. PP (99), p. 1-15
Scientific journal article - peer reviewed
2017

Microwave measurement system for dispersive dielectric properties of densely packed pellets

Livia Cerullo, Johan Winges, Thomas Rylander et al
Measurement: Journal of the International Measurement Confederation. Vol. 106, p. 179-189
Scientific journal article - peer reviewed
2016

Microwave Measurement System for Detection of Dielectric Objects in Powders

Johan Nohlert, Thomas Rylander, Tomas McKelvey et al
IEEE Transactions on Microwave Theory and Techniques. Vol. 64 (11), p. 3851-3863
Scientific journal article - peer reviewed
2016

Microwave technology for detecting traumatic intracranial bleedings: tests on phantom of subdural hematoma and numerical simulations

Stefan Candefjord, Johan Winges, A.A. Malik et al
Medical and Biological Engineering and Computing, p. 1-12
Scientific journal article - peer reviewed
2016

Higher-order brick-tetrahedron hybrid method for Maxwell's equations in time domain

Johan Winges, Thomas Rylander,
Journal of Computational Physics. Vol. 321, p. 698-707
Scientific journal article - peer reviewed
2016

Estimating Scatterer Positions using Sparse Approximation

Johan Winges, Thomas Rylander,
Swedish Microwave Days, March 15-16, Linköping. Vol. 2016, p. 120
Conference paper - non peer reviewed
2015

Higher-order hybrid method for curl-conforming elements on tetrahedrons and bricks

Johan Winges, Thomas Rylander,
Electromagnetics in Advanced Applications (ICEAA), 2015 International Conference on (7-11 Sept. 2015), p. 1016 - 1019
Conference paper - peer reviewed
2015

Microwave Resonator Sensor for Detection of Dielectric Objects in Metal Pipes

Johan Nohlert, Thomas Rylander, Tomas McKelvey et al
IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 11-14 May 2015, Pisa, p. 914-919
Conference paper - peer reviewed
2014

Global monitoring of fluidized-bed processes by means of microwave cavity resonances

Johan Nohlert, Livia Cerullo, Johan Winges et al
Measurement: Journal of the International Measurement Confederation. Vol. 55, p. 520-535
Scientific journal article - peer reviewed
2014

A Microwave Measurement System for Measurement of Dielectric Properties

Johan Winges, Livia Cerullo, Thomas Rylander et al
AntennEMB, 11-12 March, Göteborg
Conference poster
2014

Higher-Order Finite Element Solver for Maxwell’s Equations

Johan Winges, Thomas Rylander,
AntennEMB, 11-12 March, Göteborg
Conference poster
2014

Optimization of sensor positions for a quasi-magnetostatic inverse problem

Oskar Talcoth, Gustav Risting, Thomas Rylander et al
Proceedings of AntennEMB 2014, p. 90
Conference paper - non peer reviewed
2014

A multi-scale electromagnetic model of pacemaker lead heating in MRI

Oskar Talcoth, Thomas Rylander,
Proceedings of AntennEMB 2014, p. 113
Conference poster
2013

Sensitivity Optimization for Electromagnetic Measurement Systems by Sensor Selection

Oskar Talcoth, Gustav Risting, Thomas Rylander et al
Proceedings of the 7th European Conference on Antennas and Propagation, EUCAP 2013. Göteborg, 8-12 April 2013
Conference paper - peer reviewed
2013

Microwave technology for localization of traumatic intracranial bleedings—a numerical simulation study

Stefan Candefjord, Johan Winges, Yinan Yu et al
35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013; Osaka; Japan; 3 July 2013 through 7 July 2013, p. 1948-1951
Conference paper - peer reviewed
2013

Microwave Measurements for Metal Vessels

Livia Cerullo, Johan Nohlert, Johan Winges et al
7th European Conference on Antennas and Propagation, EuCAP 2013, Gothenburg, Sweden, 8-12 April 2013, p. 3869 - 3873
Conference paper - peer reviewed
2013

Sensor selection in magnetic tracking based on convex optimisation

Oskar Talcoth, Thomas Rylander,
Electronics Letters. Vol. 49 (1), p. 15-16
Scientific journal article - peer reviewed
2012

Inverse scattering for a closed cavity equipped with microwave antenna sensors

Livia Cerullo, Johan Winges, Thomas Rylander et al
AntennEMB, 5-8 March, Stockholm
Conference poster
2012

Model reduction for inverse scattering problems

Yinan Yu, Johan Winges, Tomas McKelvey et al
AntennEMB, 5-8 March, Stockholm
Conference poster
2012

Convex optimization of sensor positions for organ-positioning during radiotherapy

Oskar Talcoth, Thomas Rylander,
Proceedings of Medicinteknikdagarna 2012, p. 87
Conference paper - non peer reviewed
2012

Modeling of a multi-scale electromagnetic problem: pacemaker lead heating in MRI

Oskar Talcoth, Thomas Rylander,
Proceedings of AntennEMB 2012, p. 24
Conference poster
2011

Optimization of Sensor Positions in Magnetic Tracking

Oskar Talcoth, Thomas Rylander,
Report
2011

Electromagnetic Modeling of Pacemaker Lead Heating During MRI

Oskar Talcoth, Thomas Rylander,
Report
2011

Monolithic Multi-Scale Modeling of MR-Induced Pacemaker Lead Heating

Oskar Talcoth, Thomas Rylander, Hoi Shun Lui et al
13th International Conference on Electromagnetics in Advanced Applications (ICEAA), 2011, Torino, 12-16 September 2011, p. 599 - 602
Conference paper - peer reviewed
2011

Optimal measurements in magnetic tracking for organ-positioning during radiotherapy

Oskar Talcoth, Thomas Rylander, Hoi Shun Lui et al
Proceedings of Medicinteknikdagarna 2011, p. 79
Conference paper - non peer reviewed
2011

MR-induced heating of pacemaker leads: A parameter study of contributing factors based on multi-scale modeling

Oskar Talcoth, Thomas Rylander, Hoi Shun Lui et al
Proceedings of Medicinteknikdagarna 2011, p. 52
Conference paper - non peer reviewed
2011

Concurrent estimation of space and frequency variation for dielectrics: a microwave tomography system for process sensing applications

Livia Cerullo, Thomas Rylander, Lubomir Gradinarsky et al
Proceedings of the 9th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, Kansas City, MO USA, May 31 - June 3, 2011, p. 177-184
Conference paper - peer reviewed
2010

Fisher information analysis and preconditioning in electrical impedance tomography

S. Nordebo, R.H. Bayford, B.A. Bengtsson et al
Journal of Physics: Conference Series. 14th International Conference on Electrical Bioimpedance, Held in Conjunction with the 11th Conference on Biomedical Applications of EIT, ICEBI and EIT 2010, Gainesville, United States, 4-8 April 2010. Vol. 224 (1), p. Art. no. 012057
Conference paper - peer reviewed
2010

Reconstruction of metal protrusion on flat ground plane

Thomas Rylander, Parham Hashemzadeh, Mats Viberg et al
IET Microwaves Antennas & Propagation. Vol. 4 (11), p. 1746-1755
Scientific journal article - peer reviewed
2010

An adjoint field approach to Fisher information-based sensitivity analysis in electrical impedance tomography

S. Nordebo, R. Bayford, B. Bengtsson et al
Inverse Problems. Vol. 26 (12)
Scientific journal article - peer reviewed
2010

Optimization of sensor placement in magnetic tracking

Oskar Talcoth, Thomas Rylander, Hoi Shun Lui et al
Proceedings of Medicinteknikdagarna 2010, p. 53
Conference paper - non peer reviewed
2010

MR-induced heating of pacemaker leads: Modeling and simulations

Oskar Talcoth, Thomas Rylander, Hoi Shun Lui et al
Proceedings of Medicinteknikdagarna 2010, p. 173
Conference poster
2010

Determination of model order for inverse scattering applications

Livia Cerullo, Thomas Rylander, Mats Viberg et al
Proceedings of the V European Conference on Computational Fluid Dynamics ECCOMAS CFD 2010 J. C. F. Pereira, A. Sequeira and J. M. C. Pereira (Eds) Lisbon, Portugal,14-17 June 2010
Conference paper - peer reviewed
2010

A linear nonconforming finite element method for Maxwell's equations in two dimensions. Part I: Frequency domain

Peter Hansbo, Thomas Rylander,
Journal of Computational Physics. Vol. 229 (18), p. 6534-6547
Scientific journal article - peer reviewed
2010

A Finite Element Method Approach to the Finite-Difference Time-Domain Scheme with Cut Cells

Per Jacobsson, Thomas Rylander,
Electromagnetics. Vol. 30 (1--2), p. 82 - 93
Scientific journal article - peer reviewed
2010

Gradient-based shape optimisation of conformal array antennas

Per Jacobsson, Thomas Rylander,
Iet Microwaves Antennas & Propagation. Vol. 4 (2), p. 200-209
Scientific journal article - peer reviewed
2009

Shape Optimization of Conformal Array Antennas

Per Jacobsson, Thomas Rylander,
European Conference on Antennas and Propagation, p. 2713-2717
Conference paper - peer reviewed
2009

Shape optimization of the total scattering cross section for cylindrical scatterers

Per Jacobsson, Thomas Rylander,
Radio Science. Vol. 44
Scientific journal article - peer reviewed
2008

Shape and excitation optimization for conformal array antennas

Tomas Halleröd, Thomas Rylander,
Radio Sci.. Vol. 43
Scientific journal article - peer reviewed
2008

Shape Optimization of Total Radar Cross Section for Antenna Struts

Per Jacobsson, Thomas Rylander,
IEEE Antennas and Propagation Society International Symposium
Conference paper - peer reviewed
2008

Shape and material optimization of total radar cross section for antenna struts

Per Jacobsson, Thomas Rylander,
RVK08 - Radiovetenskap och Kommunikation 2008
Conference paper - peer reviewed
2008

Analysis of 3-D shape estimation using bistatic multi-channel radar systems

Parham Hashemzadeh, Thomas Rylander, Mats Viberg et al
SAM 2008 - 5th IEEE Sensor Array and Multichannel Signal Processing Workshop; Darmstadt; Germany; 21 July 2008 through 23 July 2008, p. 463-467
Conference paper - peer reviewed
2008

Comparison of blockage widths of ideally hard cylinders of different cross-sectional shapes

M.J. Fernández, Eva Rajo-Iglesias, Per-Simon Kildal et al
IEEE International Symposium on Antennas and Propagation (IEEE AP-S), San Diego
Conference paper - peer reviewed
2008

Scattering Analysis by a Stable Hybridization of the Finite Element Method and the Finite-Difference Time-Domain Scheme with a Brick-Tetrahedron Interface

David Degerfeldt, Thomas Rylander,
Electromagnetics. Vol. 28 (1-2), p. 3-17
Scientific journal article - peer reviewed
2008

Electric and magnetic losses modeled by a stable hybrid with explicit-implicit time-stepping for Maxwell's equations

Tomas Halleröd, Thomas Rylander,
Journal of Computational Physics. Vol. 227 (9), p. 4499-4511
Scientific journal article - peer reviewed
2007

Design and optimization of coreless components using admittance matrix and efficiently calculated sensitivities

Juan Atalaya, Per Jacobsson, Yueqiang Liu et al
IEEE Transactions on Magnetics. Vol. 43, p. 1621-1624
Scientific journal article - peer reviewed
2007

Body-conforming finite element method on structured Cartesian grids in two dimensions with hybrid implicit-explicit time-stepping

Per Jacobsson, Thomas Rylander,
EMB07 - Electromagnetic Computations for Analysis and Design of Complex Systems
Conference paper - peer reviewed
2007

Finite element methods with stable hybrid explicit-implicit time-integration schemes

Thomas Rylander,
International Conference on Electromagnetics in Advanced Applications
Conference paper - peer reviewed
2007

Numerical evaluation of near-singular integrals on curvilinear triangular domains

Matthys M Botha, Thomas Rylander,
2007 IEEE Antennas and Propagation Society International Symposium, AP-S; Honolulu, HI; United States; 10 June 2007 through 15 June 2007, p. 4837-4840
Conference paper - peer reviewed
2007

Modeling of electric and magnetic losses by a stable hybrid with explicit-implicit time-stepping

Tomas Halleröd, Thomas Rylander,
IEEE Antennas and Propagation Society International Symposium
Conference paper - peer reviewed
2007

A higher-order finite element method with an explicit higher-order time integration scheme

David Degerfeldt, Thomas Rylander,
EMB07 Computational Electromagnetics Methods and Applications, Lund, Sweden, Oct 18-19, 2007, p. 91-98
Conference paper - peer reviewed
2007

Reducing Sidelobes from Blocking Struts by Metamaterials Cloaking and Shape Optimization

Per-Simon Kildal, Eva Rajo-Iglesias, Ulf Carlberg et al
29th ESA Antenna Workshop on multiple beam and reconfigurable antennas, 18-20 April 2007
Scientific journal article - peer reviewed
2006

A quasi-planar incident wave excitation for time-domain scattering analysis of periodic structures

David Degerfeldt, Tomas Halleröd, Börje Emilsson et al
International Journal of Numerical Modelling: Electronic Networks, Devices, and Fields. Vol. 19 (5), p. 409-419
Scientific journal article - peer reviewed
2006

A broad frequency band analysis of conformal array antennas

David Degerfeldt, Tomas Halleröd, Thomas Rylander et al
The Nordic antenna symposium -- Antenn06
Conference paper - peer reviewed
2006

Design of Inductors Using Efficiently-Calculated Sensitivities of the Admittance Matrix

Juan Atalaya, Per Jacobsson, Yueqiang Liu et al
Twelfth Biennial IEEE Conference on Electromagnetic Field Computation
Conference paper - peer reviewed
2006

A Brick-Tetrahedron Finite-Element Interface with Stable Hybrid Explicit-Implicit Time-Stepping for Maxwell's Equations

David Degerfeldt, Thomas Rylander,
Journal of Computational Physics. Vol. 220 (1), p. 383-393
Scientific journal article - peer reviewed
2005

Some issues in online assessment

Michael Christie, Yueqiang Liu, Martin Persson et al
IPSI Conference, Pescara, Italy 27-31 July 2005
Conference paper - peer reviewed
2005

Advances in FEM-FDTD hybrid methods

Thomas Rylander, Fredrik Edelvik, Anders Bondeson et al
Computational Electrodynamics: The Finite-Difference Time-Domain Method (3rd edition) -- Allen Taflove and Susan C. Hagness
Chapter in monograph, book
2005

Computational Electromagnetics

Anders Bondeson, Thomas Rylander, Pär Ingelström et al
Monograph, book
2005

Stealth design by means of shape and materials optimization

David Ericsson, Tomas Halleröd, Per Jacobsson et al
Second International Conference on Military Technology
Conference paper - peer reviewed
2005

Reduction of Total Scattering From Antenna Struts Using Shape Optimization

Per Jacobsson, Yueqiang Liu, Thomas Rylander et al
RVK 05 - Radiovetenskap och Kommunikation 2005
Conference paper - peer reviewed
2005

Perfectly Matched Layer in Three Dimensions for the Time-Domain Finite Element Method Applied to Radiation Problems

Thomas Rylander, Jian-Ming Jin,
IEEE Transactions on Antennas and Propagation. Vol. 53 (4), p. 1489-1499
Scientific journal article - peer reviewed
2005

A quasi-planar incident wave excitation for time-domain scattering analysis of periodic structures

David Ericsson, Tomas Halleröd, Börje Emilsson et al
Preprint
2005

Optimization of Frequency Selective Surfaces

David Ericsson, Thomas Rylander,
RVK05 - Radiovetenskap och Kommunikation
Conference paper - peer reviewed
2005

Gradient Optimization of Microwave Devices Using Continuum Design Sensitivities from the Adjoint Problem

Yongtao Yang, Tomas Halleröd, David Ericsson et al
IEEE Transactions on Magnetics. Vol. 2005 (5), p. 1780-1783
Scientific journal article - peer reviewed
2005

Shape and materials optimization to reduce RCS for antenna mounted on airfoil

Tomas Halleröd, Thomas Rylander,
Proceedings of RadioVetenskap och Kommunikation
Conference paper - peer reviewed
2004

FEM-FDTD Hybrid Simulation of a PIFA inside a Car – Compared to Measurements

Peter Ankarson, Yueqiang Liu, Thomas Rylander et al
EMB04, Gothenburg, Sweden, Oct. 18 – 19, 2004
Conference paper - peer reviewed
2004

FEM Analysis of Corrugated Waveguides

Thomas Rylander, Omid Sotoudeh, Per-Simon Kildal et al
EMB 04 - Electromagnetic Computations for Analysis and Design of Complex Systems
Conference paper - peer reviewed
2004

Estimation of Resonance Frequencies and Quality Factors for Driven Electromagnetic Systems

Thomas Rylander, Tomas McKelvey, Mats Viberg et al
Proc. EMB 04 - Computational Electromagnetics - Methods and Applications, Gothenburg, Sweden, pp.
Conference paper - peer reviewed
2004

FEM-FDTD Hybrid Simulation of a PIFA on a Car - Compared to Measurements

Peter Ankarson, Yueqiang Liu, Jan Carlsson et al
EMB 04 - Electromagnetic Computations for Analysis and Design of Complex Systems
Conference paper - peer reviewed
2004

Application of Gradient Method to Shape Optimization in 3D

Yongtao Yang, Anders Bondeson, Thomas Rylander et al
EMB 04 - Electromagnetic Computations for Analysis and Design of Complex Systems
Conference paper - peer reviewed
2004

Stability, accuracy and application of an FDTD-TDFEM algorithm

Thomas Rylander, Anders Bondeson, Yueqiang Liu et al
IEEE Antennas and Propagation Society International Symposium
Conference paper - peer reviewed
2004

Stability and Accuracy of Coaxial Waveguide Port Algorithm for the Time-Domain Finite Element Method

Thomas Rylander, Jianming Jin,
IEEE Antennas and Propagation Society International Symposium
Conference paper - peer reviewed
2004

Perfectly Matched Layers in Three Dimensions for the Time-Domain Finite Element Method

Thomas Rylander, Jianming Jin,
IEEE Antennas and Propagation Society International Symposium
Conference paper - peer reviewed
2004

Stable Coaxial Waveguide Port Algorithm for the Time Domain Finite Element Method

Thomas Rylander, Jian-Ming Jin,
Microwave Opt. Techn. Lett.. Vol. 42 (2), p. 115-119
Scientific journal article - peer reviewed
2004

Perfectly Matched Layer for the Time Domain Finite Element Method

Thomas Rylander, Jian-Ming Jin,
J. of Comput. Phys.. Vol. 200 (1), p. 238-250
Scientific journal article - peer reviewed
2003

Estimation of Damped and Undamped Sinusoids with Application to Analysis of Electromagnetic FDTD Simulation Data

Tomas McKelvey, Thomas Rylander, Mats Viberg et al
In Proc. 13th IFAC Symposium on System Identification SYSID 2003, Rotterdam, Netherlands
Conference paper - peer reviewed
2003

FEM-FDTD hybrid simulation of antennas in vehicles

Yading Li, Yueqiang Liu, Thomas Rylander et al
Antenn 03 - Nordic Antenna Symposium
Conference paper - peer reviewed
2003

Accurate extrapolation to zero cell size by Pade approximation

Pär Ingelström, Love Lindholm, Thomas Rylander et al
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields. Vol. 16 (3), p. 287-298
Scientific journal article - peer reviewed
2003

Estimation of Resonant Frequencies and Quality Factors from Time Domain Computations

Thomas Rylander, Tomas McKelvey, Mats Viberg et al
Journal of Computational Physics. Vol. 192 (2), p. 523-545
Scientific journal article - peer reviewed
2002

Patch antennas on inhomogeneous substrates

Thomas Rylander, Peter Waller,
Report
2002

Optimization of broadband transition from waveguide to microstrip

Thomas Rylander, Pär Ingelström, Jan Stake et al
RVK 02 - Radiovetenskap och Kommunikation 2002
Conference paper - peer reviewed
2002

Patch antennas on inhomogeneous substrates

Thomas Rylander, Peter Waller, Gerhard Kristensson et al
RVK 02 - Radiovetenskap och Kommunikation 2002
Conference paper - peer reviewed
2002

Stability of explicit-implicit hybrid time-stepping schemes for Maxwell's equations

Thomas Rylander, Anders Bondeson,
J. of Comput. Phys.. Vol. 179 (2), p. 426-438
Scientific journal article - peer reviewed
2002

Application of Stable FEM-FDTD Hybrid to Scattering Problems

Thomas Rylander, Anders Bondeson,
IEEE Transactions on Antennas and Propagation. Vol. 50 (2), p. 141-144
Scientific journal article - peer reviewed
2002

Stable FEM-FDTD Hybrid Method for Maxwell's Equations

Thomas Rylander,
Doctoral thesis
2001

Adaptive mesh techniques for the FEM-FDTD hybrid solver

Pär Ingelström, Thomas Rylander, Anders Bondeson et al
EMB 01 - Electromagnetic Computations, Methods and Applications
Conference paper - peer reviewed
2001

Patch Antennas on Inhomogeneous Substrates

Thomas Rylander, Peter Waller,
EMB 01 - Electromagnetic Computations, Methods and Applications
Conference paper - peer reviewed
2001

Iterative solution of global electromagnetic wavefields with finite elements

Andre Jaun, Karin Blomqvist, Anders Bondeson et al
Comput. Phys. Comm.. Vol. 135 (1), p. 74-81
Scientific journal article - peer reviewed
2000

The application of edge elements in electromagnetics

Thomas Rylander,
Licentiate thesis
2000

Application of Stable FEM-FDTD Hybrid to Scattering and Antenna Problems

Thomas Rylander, Pär Ingelström, Anders Bondeson et al
Antenn 00
Conference paper - peer reviewed
2000

Stable FEM-FDTD hybrid method for Maxwell's equations

Thomas Rylander, Anders Bondeson,
Comput. Phys. Comm.. Vol. 125 (1-3), p. 75-82
Scientific journal article - peer reviewed
1999

Iterative Solution of Maxwell's Equation with Finite Elements

Andre Jaun, Karin Blomkvist, Anders Bondeson et al
8th European Fusion Theory Conference
Conference paper - peer reviewed
1999

Hybrid Method Combining FDTD and FEM for Maxwell's Equations

Thomas Rylander, Anders Bondeson,
RVK 99 - RadioVetenskap och Kommunikation 99
Conference paper - peer reviewed
1998

FEM algorithms for Maxwell's equations

Thomas Rylander, Rickard Bergström, Mårten Levenstam et al
EMB 98 - Electromagnetic Computations for Analysis and Design of Complex Systems
Conference paper - peer reviewed