New methods to reduce leakage errors in planar near-field measurements

Cano Facila, Francisco Jose; Burgos Martínez, Sara y Sierra Castañer, Manuel (2011). New methods to reduce leakage errors in planar near-field measurements. En: "5th European Conference on Antennas and Propagation, EUCAP2011", 10/04/2011 - 15/04/2011, Roma, Italia. ISBN 978-1-4577-0250-1.

Descripción

Título: New methods to reduce leakage errors in planar near-field measurements
Autor/es:
  • Cano Facila, Francisco Jose
  • Burgos Martínez, Sara
  • Sierra Castañer, Manuel
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 5th European Conference on Antennas and Propagation, EUCAP2011
Fechas del Evento: 10/04/2011 - 15/04/2011
Lugar del Evento: Roma, Italia
Título del Libro: Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP2011
Fecha: 2011
ISBN: 978-1-4577-0250-1
Materias:
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Señales, Sistemas y Radiocomunicaciones
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

This paper describes two methods to cancel the effect of two kinds of leakage signals which may be presented when an antenna is measured in a planar near-field range. One method tries to reduce leakage bias errors from the receiver¿s quadrature detector and it is based on estimating the bias constant added to every near-field data sample. Then, that constant is subtracted from the data, removing its undesired effect on the far-field pattern. The estimation is performed by back-propagating the field from the scan plane to the antenna under test plane (AUT) and averaging all the data located outside the AUT aperture. The second method is able to cancel the effect of the leakage from faulty transmission lines, connectors or rotary joints. The basis of this method is also a reconstruction process to determine the field distribution on the AUT plane. Once this distribution is known, a spatial filtering is applied to cancel the contribution due to those faulty elements. After that, a near-field-to-far-field transformation is applied, obtaining a new radiation pattern where the leakage effects have disappeared. To verify the effectiveness of both methods, several examples are presented.

Más información

ID de Registro: 12083
Identificador DC: http://oa.upm.es/12083/
Identificador OAI: oai:oa.upm.es:12083
URL Oficial: http://www.eucap2011.org/
Depositado por: Memoria Investigacion
Depositado el: 13 Sep 2012 08:06
Ultima Modificación: 21 Abr 2016 11:15
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