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Pattern synthesis for multi-feed reflector antennas using invasive weed optimisation

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2 Author(s)
Foudazi, A. ; Electr. & Electron. Eng. Dept., Shahed Univ., Tehran, Iran ; Mallahzadeh, A.R.

The authors present a new optimisation method for pattern synthesis of multi-feed reflector antennas in this study. By using an invasive weed optimisation (IWO) algorithm, shaped beam antennas are designed. The results of the IWO algorithm for the synthesis of cosecant squared and contoured beam patterns are presented and compared with particle swarm optimisation algorithm results. The far-field radiation patterns of reflector antennas, fed by linear and planar array of conical horn antennas, are provided by a physical optics and the error between desired and provided radiation patterns is calculated by a root mean square method. The results show that the IWO algorithm, which provides good convergence, is stable and adaptive-to-change for different boundary conditions in pattern synthesis applications.

Published in:

Microwaves, Antennas & Propagation, IET  (Volume:6 ,  Issue: 14 )

Date of Publication:

November 20 2012

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