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Broadband physics‐based modeling of microwave passive devices through frequency mapping
Author(s) -
Bandler John W.,
Ismail Mostafa A.,
RayasSánchez José E.
Publication year - 2001
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.1017
Subject(s) - microstrip , broadband , microwave , electronic engineering , computer science , frequency response , frequency band , center frequency , microstrip antenna , coplanar waveguide , acoustics , physics , bandwidth (computing) , engineering , telecommunications , electrical engineering , band pass filter , antenna (radio)
We present a new computer‐aided modeling methodology to develop physics‐based models for passive components. We coherently integrate full‐wave electromagnetic simulators, artificial neural networks, multivariable rational functions, dimensional analysis, and frequency mapping to establish broadband models. We consider both frequency‐independent and frequency‐dependent empirical models. Frequency mapping is used to develop the frequency‐dependent empirical models. Useful properties of the frequency mapping are presented and utilized in the modeling process. We also consider the transformation from frequency‐dependent models into frequency‐independent ones in addition to the passivity of the frequency‐dependent empirical model. We illustrate the modeling process through various examples, including a microstrip right angle bend, a microstrip via, a microstrip double‐step (to be used as a basic element of constructing a model for nonuniform or tapered microstrip transmission lines), and a coplanar waveguide step junction. © 2001 John Wiley & Sons, Inc. Int J RF and Microwave CAE 11: 156–170, 2001.