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A prototype digital beamforming antenna for future satellite communications

Kühnke, L. and Helminger, J. and Klefenz, F. and Dreher, A. (1999) A prototype digital beamforming antenna for future satellite communications. In: 29th Europ. Microwave Conf. Proc., 2, pp. 141-144. 29th European Microwave Conference, München, Oktober 1999.

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Abstract

In this paper a fully adaptive digital beamforming antenna system for receiving in the L-Band is described. The system consists of a 25-element planar array for circular polarisation, 25 parallel receiving channels realising a double down-conversion to the base band or a very low frequency, a multiplexer followed by a state-of-the-art A/D-converter-card and a fast PC for the processing of the received signals. This allows the highest degree of flexibility for various tests of different digital beamforming algorithms. The different subunits of the array system and the overall antenna system design is explained in conjunction with the special demands due to an application in future satellite communications. The demonstration system is used to obtain experience in digital beamforming technology and to investigate and evaluate different beamforming algorithms. As an additional objective of the work, a performance demonstration in the communication environment of LEO-satellites is scheduled.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1999,
Title:A prototype digital beamforming antenna for future satellite communications
Authors:
AuthorsInstitution or Email of Authors
Kühnke, L.Universität Hannover
Helminger, J.Universität München
Klefenz, F.UNSPECIFIED
Dreher, A.UNSPECIFIED
Date:1999
Journal or Publication Title:29th Europ. Microwave Conf. Proc.
Volume:2
Page Range:pp. 141-144
Status:Published
Keywords:digital beamforming, LEO-satellites, communications
Event Title:29th European Microwave Conference, München, Oktober 1999
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W KN - Kommunikation/Navigation
DLR - Research area:Space
DLR - Program:W KN - Kommunikation/Navigation
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Institut für Hochfrequenztechnik
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 22:49

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