Title :
A circular switched parasitic array of log-periodic antennas with enhanced directivity and beam steering capability for ultra wideband communications applications
Author :
Tsitouri, Christina I. ; Panagiotou, Stylianos C. ; Dimousios, Themistoklis D. ; Capsalis, Christos N.
Author_Institution :
Sch. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Athens
Abstract :
In this paper a circular switched parasitic array of log-periodic dipole antennas (LPDAs) is introduced. The overall structure is subjected to an optimization procedure in order to attain significant directivity and operational bandwidth at the 3.1 GHz - 10.6 GHz frequency band with the aid of the genetic algorithms technique. Beam steering is feasible by selecting which one LPDA is connected to the signal source.
Keywords :
beam steering; dipole antenna arrays; genetic algorithms; log periodic antennas; ultra wideband communication; bandwidth 3.1 GHz to 10.6 GHz; beam steering capability; circular switched parasitic array; enhanced directivity; genetic algorithms; log-periodic dipole antennas; ultra wideband communications; Antenna arrays; Antennas and propagation; Bandwidth; Beam steering; Communication switching; Dipole antennas; Frequency; Genetic algorithms; Log periodic antennas; Ultra wideband communication; genetic algorithm; log-periodic dipole array; ultra wide band applications;
Conference_Titel :
Antennas and Propagation Conference, 2008. LAPC 2008. Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4244-1893-0
Electronic_ISBN :
978-1-4244-1894-7
DOI :
10.1109/LAPC.2008.4516921
