Electromagnetic Source Modeling using Phase Retrieval Methods
Paper i proceeding, 2011

Modeling of the field distributions from electromagnetic sources is of interest for various applications for example electromagnetic compatibility investigations, near-field to far-field transformations, antenna diagnostics and electromagnetic dosimetry. In order to determine whether exposure safety guidelines, such as the EU directive 2004/40/EC, are complied with, source modeling methods are important. Two methods for determining the total field, including phase information, when only field amplitudes have been measured on a set of planes in front of an electromagnetic source have been developed. The first method, the adjoint field method, is a gradient based optimization algorithm based on the adjoint fields. The second method, the phase angle gradient method, employs an optimization algorithm based on the phase angle gradients of a functional. Promising results have been obtained both for numerical test cases and for measured field.

Författare

Markus Johansson

Signaler och system, Signalbehandling och medicinsk teknik, Biomedicinsk elektromagnetik

Hoi-Shun Lui

Signaler och system, Signalbehandling och medicinsk teknik, Biomedicinsk elektromagnetik

Andreas Fhager

Signaler och system, Signalbehandling och medicinsk teknik, Biomedicinsk elektromagnetik

Mikael Persson

Signaler och system, Signalbehandling och medicinsk teknik, Biomedicinsk elektromagnetik

30th URSI General Assembly and Scientific Symposium, URSIGASS 2011, Istanbul, 13-20 August 2011

1-2 6051316

Styrkeområden

Informations- och kommunikationsteknik

Livsvetenskaper och teknik

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/URSIGASS.2011.6051316

ISBN

978-142445117-3