Title :
Thinned Nonuniform Amplitude Time-Modulated Linear Arrays
Author :
Aksoy, Ertugrul ; Afacan, Erkan
Author_Institution :
Dept. of Electr. & Electron. Eng., Gazi Univ., Ankara, Turkey
fDate :
7/2/1905 12:00:00 AM
Abstract :
In this work, an array thinning procedure is introduced for nonuniform amplitude time-modulated linear arrays (TMLAs). Differential evolution algorithm (DE) is used for both thinning and time modulation (TM) of the given array to suppress the sidelobes and sidebands with fewer elements so as to achieve desired far-field radiation pattern. The array is thinned by using continuous weighting optimization. Several simulations are realized to evaluate the effectiveness and drawbacks of the proposed approach.
Keywords :
antenna radiation patterns; evolutionary computation; linear antenna arrays; array thinning procedure; continuous weighting optimization; differential evolution algorithm; far-field radiation pattern; thinned nonuniform amplitude time-modulated linear arrays; time modulation; Array thinning; differential evolution; linear arrays; time modulation (TM);
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2010.2051312