Title :
Auto Search Algorithm for Antenna Structure by Gradient Method Combined with Method of Moment
Author :
Takei, Ken ; Ikegaya, Morihiko
Author_Institution :
Hitachi Cable Ltd., Hitachi
Abstract :
We propose a novel antenna design method consisting of the gradient method and method of moment is proposed. An antenna structure is represented by the combination of small segments. By regarding the 0/1 state segment variable as a real parameter, a matrix equation for the gradient method is derived. Fast computation causing of automatic decisions of simultaneous changing segments achieves practical design for various antennas, including large-scale antennas.
Keywords :
antenna theory; gradient methods; matrix algebra; method of moments; search problems; antenna design; antenna structure; auto search algorithm; automatic decisions; gradient method; large-scale antennas; matrix equation; method of moment; Circuits; Digital multimedia broadcasting; Equations; Finite difference methods; Gradient methods; Impedance matching; Linear programming; Moment methods; Radio frequency; Transmission line matrix methods; DMB; ISDB; Method of moment; gradient method; integer programming problem;
Conference_Titel :
Antennas, 2007. INICA '07. 2nd International ITG Conference on
Conference_Location :
Munich
Print_ISBN :
978-3-00-021643-5
Electronic_ISBN :
978-3-00-021643-5
DOI :
10.1109/INICA.2007.4353940
