Reduction of truncation errors in planar near-field aperture antenna measurements using the method of alternating orthogonal projections

Enrica Martini, Olav Breinbjerg, Stefano Maci

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A simple and effective procedure for the reduction of truncation error in planar near-field to far-field transformations is presented. The starting point is the consideration that the actual scan plane truncation implies a reliability of the reconstructed plane wave spectrum of the field radiated by the antenna only within a certain region inside the visible range. Then, the truncation error is reduced by a Maxwellian continuation of the reliable portion of the spectrum: after back propagating the measured field to the antenna plane, a condition of spatial concentration of the primary field is exploited to define a convergent iterative process which is also stable against moderately noisy data. Far-field patterns reconstructed from both simulated and measured near-field data demonstrate the effectiveness of the proposed procedure.
Original languageEnglish
Title of host publicationProceedings of the European Conference on Antennas and Propagation (EuCAP)
Publication date2006
ISBN (Print)978-92-9092-937-6
Publication statusPublished - 2006
Event1st European Conference on Antennas and Propagation - Nice, France
Duration: 6 Nov 200610 Nov 2006
Conference number: 1


Conference1st European Conference on Antennas and Propagation

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