Jonas Ekman
Jonas Ekman

Jonas Ekman

Professor, Head of department
Luleå University of Technology
Electronic systems
Embedded Internet Systems Lab
Department of Computer Science, Electrical and Space Engineering
+46 (0)920 492828
A2311 Luleå

I'm Professor at the Department of Computer Science, Electrical and Space Engineering performing research on electromagnetic modeling. In this area, we have been working with developing the Partial Element Equivalent Circuit (PEEC) method since 1999. Our main academic partner is University of L'Aquila (IT). We have performed a multitude of projects in the areas of:

  • power systems, 
  • antenna systems, 
  • device modeling etc. 

For futher information on my work, please browse through the publications below, look at the presentation (here), and contact me for further discussions.

Since 2009, I am acting as Head of the Department often referred to as Prefect. This means that I am responsible for all activities,centres, and development associated to the Department. 


  • EMC Technology, E7031E (link to course page)
  • High Frequency Electronic Systems (PhD course)
  • Basic and advanced PEEC modeling (PhD courses)


Graduated Phd students:

  1. Maria De Lauretis, Multiconductor transmission lines wideband modeling: A delay-rational Green’s-function-based method, LTU November 2018. ISBN (print): 978-91-7790-214-0.
  2. Andreas Hartman, Electromagnetic Modeling with Complex Dielectrics: A Partial Element Equivalent Circuit Approach, LTU March 2019. ISBN (print): 978-91-7790-302-4.
  3. Sohrab Safavi, Co-Simulation of Coupled Electromagnetic and Nonlinear Circuit Problems using the Partial Element Equivalent Circuit Method, LTU May 2014. ISBN (print) 978-91-7439-896-0. 
  4. Danesh Daroui, Efficient PEEC-based Solver for Complex Electromagnetic Problems in Power Electronics, LTU Jan. 2013. ISBN (print) 978-91-7439-527-3.
  5. Tore Lindgren, Characterization problems in radio measurement systems, LTU Dec. 2009. ISBN (print) 978-91-7439-034-6. 

Research projects (running)

2018. Vetenskapsrådet/Swedish Research Council project on "Advanced skin effect models for future 3D wide bandgap power modules". More info at SweCRIS:

Research projects (a selection of finalized)

2013. Swedish national grid. Research project on modeling drives in energy production plants.

2010 Elforsk. Research projects on Equivalent circuit based solver for electromagnetic analysis of power electronic systems - Application to busbar and IGBT modules. 

2008. Volvo CE. Research project on EMC/EMI in Hybrid Vehicles.

2005. Vetenskapsrådet/Swedish Research Council. International PostDoc: Development of Stability Conditions for Full Wave Integral Equation based Electro-magnetic Solver. Ref. nr. 623-2004-2969. 

2005. Elforsk. Research project on A New Method for Combined Electric and Electromagnetic Modeling of Power Distribution Systems.


Article in journal

Accurate Calculation of Partial Inductances for the Orthogonal PEEC Formulation (2020)

Kovačević-Badstüebner. I, Romano. D, Lombardi. L, Grossner. U, Ekman. J, Antonini. G
IEEE transactions on electromagnetic compatibility (Print)
Article in journal

Bandlimited Distortionless Material Design by an Approximation of the Heaviside Condition (2020)

Hartman. A, Antonini. G, Ekman. J, De Lauretis. M
IEEE transactions on electromagnetic compatibility (Print), Vol. 62, nr. 2, s. 532-541
Article in journal

Rigorous dc Solution of Partial Element Equivalent Circuit Models Including Conductive, Dielectric, and Magnetic Materials (2020)

Romano. D, Kovačević-Badstübner. I, Parise. M, Grossner. U, Ekman. J, Antonini. G
IEEE transactions on electromagnetic compatibility (Print), Vol. 62, nr. 3, s. 870-879
Conference paper

On the passivity of the Delay-Rational Green’s-function-based model for Transmission Lines (2019)

Antonini. G, De Lauretis. M, Ekman. J, Miroshnikova. E
Part of: Analysis, Probability, Applications, and Computation, Proceedings of the 11th ISAAC Congress, s. 71-81, 2019
Article in journal

A delay‐rational model of electromagnetic interference on multiconductor transmission lines (2018)

Biello. E, Antonini. G, De Lauretis. M, Ekman. J
International journal of numerical modelling, Vol. 31, nr. 4