Synthesis of concentric ring antenna array for a wide isoflux pattern

This research presents the synthesis of the concentric ring antenna arrays for a wide coverage pattern. The synthesis process is formulated as an optimization of the antenna excitations. Harmony search algorithm and particle swarm optimization are implemented for this optimization problem. The anten...

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Bibliographic Details
Published in:International journal of numerical modelling 2015-07, Vol.28 (4), p.433-441
Main Authors: Reyna Maldonado, Alberto, Panduro, Marco A.
Format: Article
Language:English
Subjects:
Antenna arrays
Computer simulation
concentric ring antenna array
Density
Devices
Disks
harmony search algorithm
isoflux pattern
LEO satellite
Networks
Optimization
particle swarm algorithm
Synthesis
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Summary:This research presents the synthesis of the concentric ring antenna arrays for a wide coverage pattern. The synthesis process is formulated as an optimization of the antenna excitations. Harmony search algorithm and particle swarm optimization are implemented for this optimization problem. The antenna array considers disk patches at the L‐band. First, the synthesis regards the behavior of the antenna array modeled by the cavity model. Second, the mutual coupling is included by using the full wave simulation. This synthesis could be very useful in satellites with terrestrial global coverage. The obtained antenna array provides a wide uniform power density and reduces considerably the hardware complexity for a satellite antenna system. Copyright © 2014 John Wiley & Sons, Ltd.
ISSN:0894-3370
1099-1204
DOI:10.1002/jnm.2018