Open AccessSynthesis of sparse circular antenna arrays applying a tapering technique over reconstructed continuous current distribution
Author(s) -
Garza Leopoldo A.,
Yepes Leonardo F.,
Covarrubias David H.,
Alonso Miguel A.,
Panduro Marco A.
Publication year - 2016
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2015.0401
Subject(s) - tapering , antenna (radio) , radiation pattern , current (fluid) , antenna array , basis function , basis (linear algebra) , computer science , electronic engineering , algorithm , mathematics , acoustics , physics , engineering , telecommunications , mathematical analysis , geometry , electrical engineering , computer graphics (images)
In this study, a reconstructed continuous current distribution is employed to synthesise circular (one ring) antenna arrays with sparseness characteristics. The authors proposal achieves the reproduction of a continuous current distribution from an expansion in an orthogonal basis, taking the desired radiation beam pattern as target function. To obtain the sparseness characteristics, they employed a density tapering technique that provides the excitations and locations for each antenna element. They report three numerical experiments that show the performance of the proposal and compare it with other methods in this literature.