Electromagnetic field theory

Electromagnetic Systems' research into electromagnetic field theory focuses on scattering and inverse scattering.

The objective of the scattering research is to develop or improve methods for the calculation of the electromagnetic field scattered from a known object when this is illuminated by a known electromagnetic field. This scattering problem is central to radar and antenna applications.

Scattering research fields

The scattering research fields are:

  • High-frequency asymptotic techniques
  • Integral equation techniques and method of moments
  • Complex materials and structures
  • Inverse scattering
  • Microwave imaging  

Scattering 

The task typically concerns either the study of the scattering from a certain type of objects employing existing methods or the development of new methods. The methods are analytical, e.g., high-frequency asymptotic techniques such as geometrical optics or physical optics, or numerical such as integral equation techniques combined with the method of moments.

The scattering object may be made of traditional materials or meta-materials. Among the perspectives of these investigations is the development of methods and models for synthesis of antennas and scattering structures.  

Inverse scattering 

The objective of the research into inverse scattering is to develop new methods to determine the electromagnetic properties of a scattering structure from the knowledge of the scattered field measured outside the structure. Such inverse scattering methods are used in various areas such as remote sensing, medical imaging, target identification, geophysical explorations and non-destructive testing.

One of the applications of inverse scattering is to develop quantitative imaging techniques for ground penetrating radars and other microwave imaging systems.

Contact persons

 

Olav Breinbjerg
Professor
Olav Breinbjerg


Associate Professor
Kaj Bjarne Jakobsen

     Samel Arslanagic
      Associate Professor
     Samel Arslanagic

http://www.ems.elektro.dtu.dk/research/research_areas/Electromagnetic_field_theory
22 SEPTEMBER 2020