Uncertainty simulator to evaluate the electrical and mechanical deviations in cylindrical near field antenna measurement systems

Burgos Martínez, Sara and Martín Jiménez, Fernando and Sierra Castañer, Manuel and Besada Sanmartin, Jose Luis (2008). Uncertainty simulator to evaluate the electrical and mechanical deviations in cylindrical near field antenna measurement systems. In: "The 3rd Management Committee Meeting and WG Workshop & Joint Workshop with COST 297 (HAPCOS)", 09/04/2008-11/04/2008, Limassol, Chipre. pp. 1-5.

Description

Title: Uncertainty simulator to evaluate the electrical and mechanical deviations in cylindrical near field antenna measurement systems
Author/s:
  • Burgos Martínez, Sara
  • Martín Jiménez, Fernando
  • Sierra Castañer, Manuel
  • Besada Sanmartin, Jose Luis
Item Type: Presentation at Congress or Conference (Article)
Event Title: The 3rd Management Committee Meeting and WG Workshop & Joint Workshop with COST 297 (HAPCOS)
Event Dates: 09/04/2008-11/04/2008
Event Location: Limassol, Chipre
Title of Book: Proceedings of The 3rd Management Committee Meeting and WG Workshop & Joint Workshop with COST 297 (HAPCOS)
Date: 17 November 2008
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

In order to evaluate how mechanical or electrical errors may affect in the final results (i.e. radiation patterns, directivity, side lobe levels (SLL), beam width, maximum and null position…), an error simulator based on virtual acquisitions of the measurement of the radiation characteristics in a cylindrical near-field facility has been implemented [1], [2]. In this case, the Antenna Under Test (AUT) is modelled as an array of vertical dipoles and the probe is assumed to be a corrugated horn antenna. This tool allows simulating an acquisition containing mechanical errors – deterministic and random errors in the x-, y- and z-position – and also electrical inaccuracies – such as phase errors or noise –. Then, after a near-to-far-field transformation [3], by comparing the results obtained in the ideal case and when including errors, the deviation produced can be estimated. As a result, through virtual simulations, it is possible to determine if the measurement accuracy requirements can be satisfied or not and the effect of the errors on the measurement results can be checked. This paper describes the error simulator implemented and the results achieved for some of the error sources considered for an L-band RADAR antennas in a 15 meters cylindrical near field system

More information

Item ID: 3378
DC Identifier: http://oa.upm.es/3378/
OAI Identifier: oai:oa.upm.es:3378
Official URL: http://www.cost-ic0603.org/
Deposited by: Memoria Investigacion
Deposited on: 24 Jun 2010 10:16
Last Modified: 20 Apr 2016 12:55
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