NDLI: On the quasi-TEM and full-wave approaches applied to coplanar multistrip on lossy dielectric layered media

Content Provider	IEEE Xplore Digital Library
Author	Mesa, F.L. Cano, G. Medina, F. Marques, R. Horno, M.
Copyright Year	1963
Abstract	The characteristic parameters of coplanar multistrip lines embedded in multilayered lossless/lossy substrates are commonly computed by using either quasi-TEM or full-wave model. Several methods are provided in the literature to deal with this type of structure. A comparative study of quasi-TEM and rigorous solutions is carried out in order to establish criteria for the validity of the quasi-TEM approach. Reliable quasi-TEM and full-wave numerical data have been properly generated by applying an enhanced spectral domain analysis. The authors conclude that the quasi-TEM model yields satisfactory results for many MIC and MMIC practical cases. However, significant errors arise when high conductivity substrates are involved in MMIC applications. A discussion about the computation of the dynamic modal characteristic impedance is also reported, showing how the insertion of the modal orthogonality can save computational effort in a lossy multiport system.<>
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	524
Ending Page	531
Page Count	8
File Size	907647
File Format	PDF
ISSN	00189480
Volume Number	40
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dielectric losses Dielectric substrates MMICs Microwave integrated circuits Strips Conductivity Conductors Propagation losses Nonhomogeneous media Embedded computing
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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