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Please use this identifier to cite or link to this item: http://hdl.handle.net/10651/34604

Title: Phaseless characterization of Broadband Antennas
Author(s): Arboleya Arboleya, Ana
Laviada Martínez, Jaime
Ala-Laurinaho, Juha
Álvarez López, Yuri
Las Heras Andrés, Fernando Luis
Räisänen, Antti V.
Keywords: Antenna measurement
Off-axis holography
Issue date: Feb-2016
Publisher: IEEE
Publisher version: http://dx.doi.org/10.1109/TAP.2015.2511789
Citation: IEEE Transactions on Antennas and Propagation, 64(2), p. 484-495 (2016); doi:10.1109/TAP.2015.2511789
Format extent: p. 484-495
Abstract: A new efficient method for broadband antenna characterization from phaseless acquisitions in the frequency-domain (FD) is presented. The phase-retrieval technique is based on an extrapolation of the off-axis indirect holography. In common with the conventional approach, the power of the interferometric field of the antenna under test (AUT) and a reference antenna, whose field is known in advance, as well as the power of the AUT alone, is measured at the desired frequencies. Nevertheless, the phase retrieval is accomplished independently at each spatial point by filtering in the time-domain (TD) rather than in the k-space. Thus, the dependency of the phase retrieval on the position accuracy is reduced and it can be accomplished simultaneously at all frequencies without resorting to iterative schemes. Moreover, it yields a less dense sampling and a phase-retrieval algorithm not dependent on the geometry of the acquisition. The method is illustrated with a numerical example in the W-band as well as with two near-field (NF) measurement examples in the Ka- and W-bands
URI: http://hdl.handle.net/10651/34604
ISSN: 0018-926X
Sponsored: This work was supported in part by the European Science Foundation under the RNP NEWFOCUS programme, in part by the Ministerio de Ciencia e Innovación of Spain/FEDER under Grant MIRIIEMTEC2014-54005-P and Grant TEC2014-55290-JIN, in part by the Gobierno del Principado de Asturias through the PCTI 2013–2017 GRUPIN14-114, in part by Predoctoral Grant BP11-169, in part by the Grant LINE 525-002, and in part by the Academy of Finland through the DYNAMITE project
Project id.: MIRIIEMTEC2014-54005-P
Gobierno del Principado de Asturias/PCTI 2013–2017 GRUPIN14-114
LINE 525-002
Academy of Finland/DYNAMITE project
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Ingeniería Eléctrica, Electrónica, de Computadores y Sistemas
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