Title :
ACAO of a waveguide-microstrip transition pair using the G+CD method
Author :
Zhang, Min ; Weiland, Thomas
Author_Institution :
Fachgebiet Theorie Elektromagnetischer Felder, Tech. Hochschule Darmstadt, Germany
fDate :
9/1/1994 12:00:00 AM
Abstract :
In the paper, an automatic computer-aided optimization (aCAO) of a waveguide-microstrip transition pair (WMTP) is presented. The final structure obtained, whose frequency-domain transmission characteristic S 21(f) shows a good agreement with measured data, is determined using the G+CD method, which combines conjugate direction method with gradients. The method bears the property of quadratic cut-off. A detailed derivation of the method is given
Keywords :
CAD; frequency-domain analysis; microstrip lines; optimisation; waveguide theory; waveguides; ACAO; G+CD method; automatic computer-aided optimization; conjugate direction method; final structure; frequency-domain transmission characteristic; gradients; quadratic cut-off; waveguide-microstrip transition pair; Automatic control; Equations; Gradient methods; Iterative methods; Optimization methods; Search methods; Search problems; Symmetric matrices; Waveguide theory; Waveguide transitions;
Journal_Title :
Magnetics, IEEE Transactions on
