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Optimal steering of a paraboloid antenna using piezoelectric actuators

DSpace at IIT Bombay

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Title Optimal steering of a paraboloid antenna using piezoelectric actuators
 
Creator GUPTA, VK
SESHU, P
ISSAC, KK
SHEVGAONKAR, RK
 
Subject aperture antennas
shape control
design
 
Description The use of piezoelectric actuators to modify an antenna radiation pattern has been investigated recently. In this paper, a doubly curved paraboloid antenna of Lexan((R)) material is considered, and the optimal size, location, and field of the piezoelectric actuators are determined, for steering the radiation. The deformation induced by the piezoactuators is determined using a shell element modified for this purpose, and validated using extensive experiments on curved beams and shells with piezopatches. The genetic algorithm is used as the optimization tool. One of the contributions of this paper is a formulation of the optimization problem which reduces the computational effort significantly. A reasonable amount of steering with good beam quality is achieved.
 
Publisher IOP PUBLISHING LTD
 
Date 2011-08-03T22:38:14Z
2011-12-26T12:54:25Z
2011-12-27T05:42:19Z
2011-08-03T22:38:14Z
2011-12-26T12:54:25Z
2011-12-27T05:42:19Z
2007
 
Type Article
 
Identifier SMART MATERIALS & STRUCTURES, 16(1), 67-75
0964-1726
http://dx.doi.org/10.1088/0964-1726/16/1/007
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9163
http://hdl.handle.net/10054/9163
 
Language en