Memorias de investigación
Ponencias en congresos:
New methods to reduce leakage errors in planar near-field measurements
Año:2011
Áreas de investigación
  • Telecomunicación inalámbrica
Datos
Descripción
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.
Internacional
Si
Nombre congreso
5th European Conference on Antennas and Propagation, Eucap 2011
Tipo de participación
960
Lugar del congreso
Roma
Revisores
Si
ISBN o ISSN
978-88-8202-074-3
DOI
Fecha inicio congreso
10/04/2011
Fecha fin congreso
15/04/2011
Desde la página
3737
Hasta la página
3741
Título de las actas
: Proceedings of EuCAP 2011
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Francisco José Cano Facila UPM
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Radiación
  • Departamento: Señales, Sistemas y Radiocomunicaciones