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Design of Directive Broad-Band Antennas

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1 Author(s)
Baum, R. ; Raytheon Manufacturing Company, Inc., New York, N.Y.

Mutual coupling between the individual antennas of a direction-finding system causes an asymmetry in their respective field patterns which prevents complete cancellation of radiation in the direction of the "null." Instead, it produces a radiation minimum combined with an error in direction. By a suitable arrangement of parasitic antennas the original symmetry can be restored and a correct and true null can be obtained.

Published in:

Proceedings of the IRE  (Volume:34 ,  Issue: 12 )