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Efficient characterization of millimeter‐wave asymmetric coupled microstrip structures using the quasi‐symmetric approach
Author(s) -
Khodja A.,
Yagoub M. C. E.,
Touhami R.,
Baudrand H.
Publication year - 2013
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.20686
Subject(s) - microwave , microstrip , extremely high frequency , computer science , characterization (materials science) , electronic engineering , scattering parameters , topology (electrical circuits) , engineering , telecommunications , physics , electrical engineering , optics
To sustain the ever‐increasing use of coupled‐line structures in RF/microwave systems, efficient design tools should be developed. In this article, an original approach combining accuracy and speediness is proposed to shorten time‐to‐market design cycles when such structures are involved. By introducing the quasi‐symmetric approach, CPU‐time required to analyze asymmetric coupled‐lines can be significantly reduced, leading to faster models without sacrificing the overall design accuracy. To achieve this aim, a rigorous formulation was developed and, for the first time, trial functions of C‐ and π‐modes were obtained from the quasi‐symmetric case and applied to the asymmetric case. The proposed approach, easily implementable in commercial simulators, was demonstrated through comparisons with published data. © 2012 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2013.