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In Situ Optimization of Metamaterial-Inspired Loop Antennas

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6 Author(s)
Ouedraogo, R.O. ; Dept. of Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI, USA ; Rothwell, E.J. ; Diaz, A. ; Shih-Yuan Chen
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A new methodology for designing metamaterial-inspired antennas using an in situ optimization technique is introduced. Through this approach, an optimization tool such as a genetic algorithm is used to design a metamaterial pattern adjacent to an antenna to enhance the antenna's performance. As an example, the technique is used for miniaturization purposes where a loop antenna initially resonant at 2.45 GHz is made resonant at 960 MHz, providing a sevenfold reduction in antenna area over a conventional loop designed to operate at 960 MHz.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:9 )