Radial field retrieval in spherical scanning for current reconstruction and NF-FF transformation

Fernando Las-Heras; Tapan K. Sarkar

doi:10.1109/TAP.2002.1017669

Radial field retrieval in spherical scanning for current reconstruction and NF-FF transformation

Fernando Las-Heras, Tapan K. Sarkar

Department of Electrical Engineering & Computer Science

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

In this paper, a near-field to far-field (NF-FF) transformation for the case of spherical scanning using equivalent magnetic currents (EMCs) and matrix methods is addressed. It is based on the decoupling of the field components and the iterative retrieval of the radial component of the electric field. The technique is applied for far-field calculation as well as for the estimation of the current distribution of the antenna under test (AUT) using spherical near-field facilities. Results from measured near-field data of several antennas are presented and compared to those of the analytical solution via a spherical wave made expansion method.

Original language	English (US)
Pages (from-to)	866-874
Number of pages	9
Journal	IEEE Transactions on Antennas and Propagation
Volume	50
Issue number	6
DOIs	https://doi.org/10.1109/TAP.2002.1017669
State	Published - Jun 2002

Keywords

Equivalent sources
Near-field (NF) far-field (FF) transformation

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/TAP.2002.1017669

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title = "Radial field retrieval in spherical scanning for current reconstruction and NF-FF transformation",

abstract = "In this paper, a near-field to far-field (NF-FF) transformation for the case of spherical scanning using equivalent magnetic currents (EMCs) and matrix methods is addressed. It is based on the decoupling of the field components and the iterative retrieval of the radial component of the electric field. The technique is applied for far-field calculation as well as for the estimation of the current distribution of the antenna under test (AUT) using spherical near-field facilities. Results from measured near-field data of several antennas are presented and compared to those of the analytical solution via a spherical wave made expansion method.",

keywords = "Equivalent sources, Near-field (NF) far-field (FF) transformation",

author = "Fernando Las-Heras and Sarkar, {Tapan K.}",

note = "Funding Information: Manuscript received October 30, 2000; revised June 6, 2001. This work was supported in part by Spanish DGES of the Ministerio de Educaci{\'o}n y Cultura. F. Las-Heras is with the Universidad Politecnica de Madrid, ETSI Teleco-municacion, Ciudad Universitaria, 28040-Madrid, Spain (e-mail: fernando@ gr.ssr.upm.es). T. K. Sarkar is with Department Electrical Engineering and Computer Science, Syracuse University, Syracuse, NY 13244 USA (e-mail: tksarkar@ mailbox.syr.edu). Publisher Item Identifier S 0018-926X(02)05747-2.",

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doi = "10.1109/TAP.2002.1017669",

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T1 - Radial field retrieval in spherical scanning for current reconstruction and NF-FF transformation

AU - Las-Heras, Fernando

AU - Sarkar, Tapan K.

N1 - Funding Information: Manuscript received October 30, 2000; revised June 6, 2001. This work was supported in part by Spanish DGES of the Ministerio de Educación y Cultura. F. Las-Heras is with the Universidad Politecnica de Madrid, ETSI Teleco-municacion, Ciudad Universitaria, 28040-Madrid, Spain (e-mail: fernando@ gr.ssr.upm.es). T. K. Sarkar is with Department Electrical Engineering and Computer Science, Syracuse University, Syracuse, NY 13244 USA (e-mail: tksarkar@ mailbox.syr.edu). Publisher Item Identifier S 0018-926X(02)05747-2.

PY - 2002/6

Y1 - 2002/6

N2 - In this paper, a near-field to far-field (NF-FF) transformation for the case of spherical scanning using equivalent magnetic currents (EMCs) and matrix methods is addressed. It is based on the decoupling of the field components and the iterative retrieval of the radial component of the electric field. The technique is applied for far-field calculation as well as for the estimation of the current distribution of the antenna under test (AUT) using spherical near-field facilities. Results from measured near-field data of several antennas are presented and compared to those of the analytical solution via a spherical wave made expansion method.

AB - In this paper, a near-field to far-field (NF-FF) transformation for the case of spherical scanning using equivalent magnetic currents (EMCs) and matrix methods is addressed. It is based on the decoupling of the field components and the iterative retrieval of the radial component of the electric field. The technique is applied for far-field calculation as well as for the estimation of the current distribution of the antenna under test (AUT) using spherical near-field facilities. Results from measured near-field data of several antennas are presented and compared to those of the analytical solution via a spherical wave made expansion method.

KW - Equivalent sources

KW - Near-field (NF) far-field (FF) transformation

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JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

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Radial field retrieval in spherical scanning for current reconstruction and NF-FF transformation

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Keywords

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