Title :
A compact band-notched UWB slot antenna optimized by genetic algorithm
Author :
Xie, Lei ; Jiao, Yong-Chang ; Zhao, Gang
Author_Institution :
Nat. Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´´an, China
Abstract :
A compact band-notched ultra-wideband (UWB) slot antenna based on mesh-grid structures is designed. A genetic algorithm (GA) is used to optimize the mesh-grid structures on both the ground plane and the patch to obtain band-notched characteristic in the UWB band. The optimized antenna has a compact size of 24mm×28mm×1mm. Simulated results have shown that the designed antenna has a bandwidth, defined by VSWR<;2, ranging from 3 to 11 GHz and a good band-notched performance in the 5 GHz WLAN band. Moreover, it exhibits nearly omnidirectional radiation patterns and stable gain across the operating band.
Keywords :
antenna radiation patterns; genetic algorithms; omnidirectional antennas; slot antennas; ultra wideband antennas; wireless LAN; UWB band; VSWR; WLAN band; band notched UWB slot antenna; frequency 3 GHz to 11 GHz; genetic algorithm; mesh grid structure; omnidirectional radiation pattern; Antenna radiation patterns; Genetic algorithms; Microstrip antennas; Microwave antennas; Slot antennas; Ultra wideband antennas; Genetic Algorithm; Slot antenna; band-notched UWB slot antenna;
Conference_Titel :
Microwave Technology & Computational Electromagnetics (ICMTCE), 2011 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-8556-7
DOI :
10.1109/ICMTCE.2011.5915520
