Modal source reconstruction based on radiated far-field for antenna design

Modal source reconstruction based on radiated far-field for antenna design

We present a mathematical technique to reconstruct the modal current distribution on arbitrary antennas from the radiated far-field and general knowledge about the modes involved. The method leads to good results if the radiation mechanism of the actual antenna can be approximated by the current dis...

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Hauptverfasser: Safin, E., Martens, R., Manteuffel, D.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Antennas
Correlation
Current distribution
Eigenvalues and eigenfunctions
Electric fields
Equations
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creator Safin, E.
Martens, R.
Manteuffel, D.
description We present a mathematical technique to reconstruct the modal current distribution on arbitrary antennas from the radiated far-field and general knowledge about the modes involved. The method leads to good results if the radiation mechanism of the actual antenna can be approximated by the current distribution on a simplified structure. The current distribution of the simplified structure is decomposed into its characteristic modes and the related modal far-field is calculated. Assuming that the far-field of the actual antenna contains the same modes, their weighting coefficients are calculated by comparing the far-field of the actual antenna to the modal far-field of the simplified structure. It can be shown that the weighting coefficients of all significant modes can be reconstructed with good accuracy.
doi_str_mv 10.1109/EuCAP.2012.6205814
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subjects Antennas
Correlation
Current distribution
Eigenvalues and eigenfunctions
Electric fields
Equations
title Modal source reconstruction based on radiated far-field for antenna design
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