Auto Search Algorithm for Antenna Structure by Gradient Method Combined with Method of Moment

Conference: INICA 2007 - International ITG-Conference on Antennas
03/28/2007 - 03/30/2007 at Munich, Germany

Proceedings: INICA 2007

Pages: 4Language: englishTyp: PDF

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Takei, Ken; Ikegaya, Morihiko (Cross Technology Development Center, Hitachi Cable Ltd., Takasago Works, 880 Isagozawa-cho, Hitachi-shi, Ibaraki-ken, 319-1418 Japan)

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.