Title :
An improved broadband miniaturized loaded open sleeve antenna
Author :
Chen, J. ; Fu, G. ; Wu, G.-D. ; Gong, S.-X.
Author_Institution :
Key Nat. Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´´an, China
Abstract :
A novel improved loaded open sleeve antenna is proposed for broadband application in UHF/VHF. This proposed open sleeve antenna has symmetry distribution of the parasitic elements which can commendably solve the problem of horizontal pattern asymmetry of conventional open sleeve antenna. Top loading technology is adopted simultaneously which minimize the size of the antenna by 32%. Meanwhile, tandem inductor/resistor circuit designed by means of genetic algorithm (GA) optimizers is taken as a load to maximize the bandwidth of this antenna. Finally, this proposed antenna has a bandwidth of 6: 1 in UHF/VHF. The measured voltage standing-wave ratio (VSWR) and horizontal gain of this antenna agree well with data obtained from simulations.
Keywords :
broadband networks; genetic algorithms; monopole antennas; UHF/VHF; VSWR; broadband miniaturized loaded open sleeve antenna; genetic algorithm optimizers; open sleeve antenna; sleeve monopole antennas; standing-wave ratio; symmetry distribution; Algorithm design and analysis; Bandwidth; Broadband antennas; Design optimization; Genetic algorithms; Inductors; Loaded antennas; Resistors; UHF antennas; VHF circuits;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5705-2
DOI :
10.1109/ICMMT.2010.5524951
