Gain antenna measurement using single cut near field measurements

Sierra Castañer, Manuel and Saccardi, Francesco and Foged, Lars Jacob (2016). Gain antenna measurement using single cut near field measurements. In: "38th Annual AMTA Symposium", 30/10/2016 - 3/11/2016, Austin (EEUU). ISBN 978-1-5090-5179-3. pp. 309-312. https://doi.org/10.1109/AMTAP.2016.7806286.

Description

Title: Gain antenna measurement using single cut near field measurements
Author/s:
  • Sierra Castañer, Manuel
  • Saccardi, Francesco
  • Foged, Lars Jacob
Item Type: Presentation at Congress or Conference (Article)
Event Title: 38th Annual AMTA Symposium
Event Dates: 30/10/2016 - 3/11/2016
Event Location: Austin (EEUU)
Title of Book: Proceedings of the 38th Annual AMTA Symposium
Date: 3 November 2016
ISBN: 978-1-5090-5179-3
Subjects:
Freetext Keywords: Antenna measurements, Gain measurement, Gain, Antennas, Noise measurement, Frequency measurement, Probes
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

Some antennas require rapid validation at a reduced measurement distance while maintaining sufficient accuracy in the determination of pertinent antenna parameters such as gain. In particular, for cellular base station antennas in production phase the measurement time can be a limitation. In these cases, a rapid check of the radiation performance in the two main planes is sufficient. Other examples are phase arrays with high degree of steering that would require considerable measurement time for characterizing all steering positions. This paper presents a near-field antenna test procedure providing single or double main plane patterns including the gain. The procedure is applicable to antennas, with separable excitation in the two main planes. The test set-up is based on an azimuth positioner and near to far-field transformation based on expansion in cylindrical modes. The paper shows results for gain measurements. Near to far-field transformation is performed using the cylindrical modes expansion assuming a zero-height cylinder. This allows the use of a FFT in the calculation of the far field pattern including probe correction. In the case of gain, the near to far-field transformation factor is calculated for bore sight direction, taking advantage of the separable excitation properties of the antenna. This factor is used in the gain calculation by comparison technique.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainUnspecifiedproject ENABLING5GUnspecifiedUnspecified
Madrid Regional GovernmentS2013/ICE-3000SPADERADAR-CMUnspecifiedUnspecified

More information

Item ID: 46511
DC Identifier: http://oa.upm.es/46511/
OAI Identifier: oai:oa.upm.es:46511
DOI: 10.1109/AMTAP.2016.7806286
Official URL: http://ieeexplore.ieee.org/document/7806286/
Deposited by: Memoria Investigacion
Deposited on: 05 Sep 2017 15:55
Last Modified: 05 Sep 2017 15:55
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