Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Flaminio Ferrara"'
Autor:
Florindo Bevilacqua, Amedeo Capozzoli, Claudio Curcio, Francesco D’Agostino, Flaminio Ferrara, Claudio Gennarelli, Rocco Guerriero, Angelo Liseno, Massimo Migliozzi, Yiannis Vardaxoglou
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 17, Iss 8, Pp 651-666 (2023)
Abstract An effective, probe‐compensated, phaseless Near‐Field‐Far‐Field (NF–FF) transformation technique with planar spiral scanning is presented. The phase retrieval problem is solved by a quadratic inverse process, whose data are the vol
Externí odkaz:
https://doaj.org/article/bc9c7975cd394bc2a497f121d87b666c
Autor:
Florindo Bevilacqua, Francesco D’Agostino, Flaminio Ferrara, Claudio Gennarelli, Rocco Guerriero, Massimo Migliozzi, Giovanni Riccio
Publikováno v:
Sensors, Vol 24, Iss 6, p 1787 (2024)
This paper deals with the compensation of the probe mispositioning errors occurring in a cylindrical near-field (NF) facility due to the imprecise control of the linear and azimuthal positioners allowing the cylindrical scanning and/or to their limit
Externí odkaz:
https://doaj.org/article/87eb8a8eb76a4cdf91795c5ae6ae1018
Autor:
Florindo Bevilacqua, Amedeo Capozzoli, Claudio Curcio, Francesco D'Agostino, Flaminio Ferrara, Claudio Gennarelli, Rocco Guerriero, Angelo Liseno, Massimo Migliozzi
Publikováno v:
IEEE Access, Vol 11, Pp 132735-132749 (2023)
This paper proposes a method to correct severe, but known, probe positioning errors affecting a phaseless Planar Wide-Mesh Scanning (PWMS) Near-Field to Far-Field (NFFF) transformation technique and shows its numerical assessment. The involved techni
Externí odkaz:
https://doaj.org/article/e7ef5527352a4d87aa079fce3454fa9a
Autor:
Francesco D'Agostino, Flaminio Ferrara, Claudio Gennarelli, Rocco Guerriero, Massimo Migliozzi, Giovanni Riccio
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 17, Iss 1, Pp 43-52 (2023)
Abstract In this article, a bi‐polar near‐field‐to‐far‐field (NFTFF) transformation with probe compensation, which is very convenient from the data reduction standpoint when characterising a flat antenna under test (AUT), is developed. It t
Externí odkaz:
https://doaj.org/article/185b99392bfd41f4bfc12e5826032dcc
Autor:
Florindo Bevilacqua, Francesco D’Agostino, Flaminio Ferrara, Claudio Gennarelli, Rocco Guerriero, Massimo Migliozzi, Giovanni Riccio
Publikováno v:
Sensors, Vol 23, Iss 16, p 7276 (2023)
The goal of this article is to provide numerical and experimental assessments of an effective near-field to far-field transformation (NF–FF T) technique with planar spiral scanning for flat antennas under test (AUTs), which requires a non-redundant
Externí odkaz:
https://doaj.org/article/85aeadb3e30248d48c9aad5811f97a69
Autor:
Francesco D'Agostino, Flaminio Ferrara, Claudio Gennarelli, Rocco Guerriero, Massimo Migliozzi, Giovanni Riccio
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 709-717 (2021)
A convenient sampling distribution and an optimal sampling interpolation algorithm are here presented for mapping the antenna near-field values on a planar surface. The mapping procedure is based on the theoretical background related to a non-redunda
Externí odkaz:
https://doaj.org/article/e5cafb05cfbf4e8e8865c72af2cc18c8
Publikováno v:
Applied Sciences, Vol 12, Iss 21, p 11218 (2022)
The interaction between an electromagnetic plane wave and a metallic wedge coated with a uniform layer made of a double-negative metamaterial is studied by means of the uniform asymptotic physical optics method in the high-frequency range, e.g., at m
Externí odkaz:
https://doaj.org/article/7f54a22e2b2e4af8890f7df90f855aac
Publikováno v:
Applied Sciences, Vol 12, Iss 14, p 7302 (2022)
This research paper proposes an analytical approach for evaluating electromagnetic scattering from a planar complex object made of a perfect electric conductor, which hosts a double negative metamaterial half-layer on the lit face. The method is base
Externí odkaz:
https://doaj.org/article/119af2229e9840888d7128d7d4244a2a
Autor:
Francesco D’Agostino, Flaminio Ferrara, Claudio Gennarelli, Rocco Guerriero, Massimo Migliozzi, Giovanni Riccio
Publikováno v:
Sensors, Vol 21, Iss 5, p 1644 (2021)
An efficient near-to-far-field transformation (NTFFT) technique, wherein the near-field (NF) measurements are acquired along a planar spiral with a uniform step to make the control of the involved positioners easier, is developed in this article. Suc
Externí odkaz:
https://doaj.org/article/f7feabf2f464448ca884ff3ac457d7a1
Autor:
Francesco D’Agostino, Ilaria De Colibus, Flaminio Ferrara, Claudio Gennarelli, Rocco Guerriero, Massimo Migliozzi
Publikováno v:
International Journal of Antennas and Propagation, Vol 2014 (2014)
This paper deals with the experimental validation of an efficient near-field-far-field (NF-FF) transformation using the planar wide-mesh scanning (PWMS). Such a nonconventional plane-rectangular scanning technique is so named, since the sample grid i
Externí odkaz:
https://doaj.org/article/8720842e3e054119964fcea82778573d