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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/9163

Title: Optimal steering of a paraboloid antenna using piezoelectric actuators
Authors: GUPTA, VK
SESHU, P
ISSAC, KK
SHEVGAONKAR, RK
Keywords: aperture antennas
shape control
design
Issue Date: 2007
Publisher: IOP PUBLISHING LTD
Citation: SMART MATERIALS & STRUCTURES, 16(1), 67-75
Abstract: 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.
URI: 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
ISSN: 0964-1726
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