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Your search keyword '"Mahanfar, Alireza"' showing total 20 results
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20 results on '"Mahanfar, Alireza"'

3. Optimization of passive microwave devices through geometrical parameterization - Application to the design of a cylindrical cavity filter

Author

Mahanfar, Alireza, Bila, Stéphane, Aubourg, Michel, Verdeyme, Serge, Boichon, C., Puech, Jérôme, Lapierre, Luc, MINACOM, XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), and Centre National d'Études Spatiales [Toulouse] (CNES)

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2009

4. Coorperative particle swarm optimization of passive microwave devices

Author

Mahanfar, Alireza, Bila, Stéphane, Aubourg, Michel, Verdeyme, Serge, MINACOM, XLIM (XLIM), and Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2008

20. A Reconfigurable Patch Antenna Using Liquid Metal Embedded in a Silicone Substrate.

Author

Mazlouman, Shahrzad Jalali, Jiang, Xing Jie, Mahanfar, Alireza (Nima), Menon, Carlo, and Vaughan, Rodney G.

Subjects
MICROSTRIP antennas, ANTENNA radiation patterns, LIQUID metals, SILICONES, SOLID freeform fabrication, ALLOYS, SUBSTRATES (Materials science), RESONANCE
Abstract

A frequency-reconfigurable microstrip patch antenna is implemented using a stretchable silicone TC5005 substrate. The stretchable patch is fabricated by injecting liquid metal alloy Galinstan into a square reservoir fabricated in the silicone elastomer substrate. An aperture-coupled feeding method is presented to enhance the strain by separating the fixed feed element from the stretched radiating element. The implemented prototype is demonstrated to be stretchable by a strain of up to 300% (and the material has the potential for more). The electrical length of the patch antenna varies with the stretching, and we demonstrate frequency tuning from 1.3 to 3 GHz. A maximum radiation efficiency of 80% is measured for the antenna. The fabrication process of the antenna system and experimental results for impedance and radiation pattern are presented. [ABSTRACT FROM AUTHOR]

Published
2011
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