Hybrid fast fourier transform-plane wave based near-field far-field transformation for "body of revolution" antenna measurement grids: The cylindrical case

Carsten H. Schmidt, Thomas F. Eibert, Tommi A. Laitinen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Near-field antenna measurements are a common technique to characterize the radiation behavior of antennas. Due to the measurement in the radiating near field, a postprocessing near-field far-field transformation is required to finally compute the radiation pattern. For the near-field transformation a low numerical complexity as well as full probe correction capabilities are highly desirable. In this paper a hybrid near-field far-field transformation algorithm is presented which combines a Fast Fourier Transform preprocessing with the plane wave based fully probe corrected near-field transformation of low numerical complexity being suitable for body of revolution antenna measurement grids. The Fast Fourier Transform splits the probe signals into azimuthal Fourier modes which are processed individually by the plane wave based transformation algorithm. In this way the computation time can be reduced while the numerical complexity is unchanged. In this paper the hybrid technique is applied to cylindrical near-field measurements which are superior for the measurement of fan beam antennas.

Original languageEnglish
Title of host publication2011 IEEE International Symposium on Antennas and Propagation - Proceedings
Pages1628-1631
Number of pages4
DOIs
StatePublished - 2011
Event2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2011 - Spokane, WA, United States
Duration: 3 Jul 20118 Jul 2011

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
ISSN (Print)1522-3965

Conference

Conference2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2011
Country/TerritoryUnited States
CitySpokane, WA
Period3/07/118/07/11

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