Fullwave MoM-SOC Technique for Extraction of Equivalent Circuit Models of Coplanar Waveguide Discontinuities: CPW- and CSL-Mode Cases

Lei ZHU  Toshiyuki YAKABE  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E86-C   No.11   pp.2292-2299
Publication Date: 2003/11/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
coplanar waveguide discontinuity,  CPW- and CSL-mode,  equivalent circuit model,  method of moments,  short-open calibration,  

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Summary: 
Field-theoretical equivalent circuit models of a variety of coplanar waveguide (CPW) lumped-element discontinuities for two dominant modes are characterized by executing the short-open calibration (SOC) procedure in the fullwave method of moments (MoM). In our developed MoM platform, the impressed current sources with even or odd symmetry are introduced at the selected ports in order to separately excite the even and odd dominant modes, i.e., CPW- and CSL-mode. After the port network parameters are numerically derived using the Galerkin's technique, the two SOC standards are defined and evaluated in the self-consistent MoM to effectively de-embed and extract the core model parameters of a CPW circuit or discontinuity. After the validation is confirmed via comparison with the published data, extensive investigation is carried out to for the first time demonstrate the distinctive model properties of one-port CPW short- and open-end elements as well as two-port inductive and capacitive coupling elements with resorting to its two different dominant modes.