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Träfflista för sökning "WFRF:(Johansson Markus 1978 ) srt2:(2011);pers:(Fhager Andreas 1976)"

Sökning: WFRF:(Johansson Markus 1978 ) > (2011) > Fhager Andreas 1976

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  • Johansson, Markus, 1978-, et al. (författare)
  • Electromagnetic Source Modeling using Phase Retrieval Methods
  • 2011
  • Ingår i: 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011, Istanbul, 13-20 August 2011. - 978-142445117-3 ; s. 1-2
  • Konferensbidrag (refereegranskat)abstract
    • 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.
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