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Title

NOVEL APPROACH TO ULTRA-WIDEBAND ANTENNA DESIGN

Pages

 Start Page 1 | End Page 11

Keywords

GENETIC ALGORITHM (GA) 
ULTRA-WIDEBAND (UWB) ANTENNAS 

Abstract

 A novel approach to ultra-wideband (UWB) antenna design is presented which is based on a general description for the geometry of MONOPOLE ANTENNAs. This general description is capable of producing almost all possible shapes for MONOPOLE ANTENNAs and it is compatible with different OPTIMIZATION methods. The general description is used for the OPTIMIZATION of rotationally-symmetric MONOPOLE ANTENNA with finite ground plane. The OPTIMIZATION of antennas is performed by applying a hybrid procedure, which begins with a global search and completes with a local OPTIMIZATION. The OPTIMIZATION procedure aims at minimizing the reflection from antennas while reducing the distortion of radiated pulses. In some cases, the reduction of variations in the energy pattern is also considered. The numerical results show the reliability and effectiveness of the whole process and considerable improvement in comparison with similar antennas reported in the literature.

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