This letter discusses gradient optimization of band-pass filters using electromagnetic simulation software based on the finite difference-time domain algorithm. It is shown that even high-Q-factor circuits can be optimized in acceptable time if robust digital signal processing techniques that take into account signal dynamics are used to predict the frequency behavior of a structure from relatively short sample sequences.
Published in:
Microwave and Wireless Components Letters, IEEE
(Volume:12
,
Issue:
10
)
Date of Publication: Oct. 2002