A New Method to Reduce Truncation Errors in Partial Spherical Near-Field Measurements

Cano Facila, Francisco Jose and Pivnenko, Sergey (2011). A New Method to Reduce Truncation Errors in Partial Spherical Near-Field Measurements. In: "5th European Conference on Antennas and Propagation, EUCAP2011", 10/04/2011 - 15/04/2011, Roma, Italia. ISBN 978-1-4577-0250-1.

Description

Title: A New Method to Reduce Truncation Errors in Partial Spherical Near-Field Measurements
Author/s:
  • Cano Facila, Francisco Jose
  • Pivnenko, Sergey
Item Type: Presentation at Congress or Conference (Article)
Event Title: 5th European Conference on Antennas and Propagation, EUCAP2011
Event Dates: 10/04/2011 - 15/04/2011
Event Location: Roma, Italia
Title of Book: Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP2011
Date: 2011
ISBN: 978-1-4577-0250-1
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Señales, Sistemas y Radiocomunicaciones
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A new and effective method for reduction of truncation errors in partial spherical near-field (SNF) measurements is proposed. The method is useful when measuring electrically large antennas, where the measurement time with the classical SNF technique is prohibitively long and an acquisition over the whole spherical surface is not practical. Therefore, to reduce the data acquisition time, partial sphere measurement is usually made, taking samples over a portion of the spherical surface in the direction of the main beam. But in this case, the radiation pattern is not known outside the measured angular sector as well as a truncation error is present in the calculated far-field pattern within this sector. The method is based on the Gerchberg-Papoulis algorithm used to extrapolate functions and it is able to extend the valid region of the calculated far-field pattern up to the whole forward hemisphere. To verify the effectiveness of the method, several examples are presented using both simulated and measured truncated near-field data.

More information

Item ID: 12082
DC Identifier: http://oa.upm.es/12082/
OAI Identifier: oai:oa.upm.es:12082
Official URL: http://www.eucap2011.org/
Deposited by: Memoria Investigacion
Deposited on: 13 Sep 2012 08:06
Last Modified: 21 Apr 2016 11:15
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