Field reconstruction and estimation of the antenna support structure effect on the measurement uncertainty of the bts1940 antenna

Author

Cappellin, C. ; Pivnenko, S.

Author_Institution

TICRA, Copenhagen, Denmark

fYear

2014

fDate

6-11 April 2014

Firstpage

2491

Lastpage

2494

Abstract

The 3D reconstruction algorithm of DIATOOL is applied to the BTS1940 antenna, recently measured at the DTU-ESA Spherical Near-Field Antenna Test Facility in Denmark. The antenna was measured mounted on the antenna tower through a custom support structure. The purpose of this paper is to investigate the effect of the support structure on the measured field, by reconstructing the currents induced on the support frame with DIATOOL. The field obtained by filtering these currents is presented. Moreover, the spatial resolution obtained by the 3D reconstruction is discussed and compared with the one obtained by traditional microwave holography and by the inverse Fourier transform of the plane wave spectrum with knowledge of the invisible region.

Keywords

antenna testing; measurement uncertainty; test facilities; 3D reconstruction algorithm; BTS1940 antenna; DIATOOL; DTU-ESA spherical near-field antenna test facility; antenna support structure effect estimation; antenna tower; custom support structure; field reconstruction; inverse Fourier transform; measurement uncertainty; microwave holography; plane wave spectrum; spatial resolution; Antenna measurements; Antennas and propagation; Current measurement; Image reconstruction; Microwave filters; Surface reconstruction; Three-dimensional displays; antenna diagnostics; measurements; uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EuCAP), 2014 8th European Conference on

Conference_Location

The Hague

Type

conf

DOI

10.1109/EuCAP.2014.6902324

Filename

6902324