https://scholars.lib.ntu.edu.tw/handle/123456789/289994
Title: | Analysisof coplanar waveguide-to-coplanar stripline transitions | Authors: | SHAU-GANG MAO Hwang, C.-T. RUEY-BEEI WU Chen, C.H. |
Keywords: | Coplanar stripline; Coplanar waveguide; Equivalent-circuit model; Fdtd method; Transitions | Issue Date: | 2000 | Journal Volume: | 48 | Journal Issue: | 1 | Start page/Pages: | 23-29 | Source: | IEEE Transactions on Microwave Theory and Techniques | Abstract: | The coplanar waveguide (CPW)-to-coplanar stripline (CPS) transition is analyzed theoretically and experimentally in this paper. To characterize this transition in the lower frequency band, a simple equivalent-circuit model that consists of uniform and nonuniform transmission lines is established. The elements of this model can all be obtained by the closed-form formulas; hence, this model is suitable for computer-aided-design application. This model is then applied to design and analyze the CPW-to-CPS transitions with various structure parameters. In the higher frequency band, the partially prizm-gridded finite-difference time-domain (FDTD) method is employed to take into account the bond-wire effect as well as the surface-wave leakage and space-wave radiation associated with the transition. In this study, results based on equivalent-circuit model, FDTD simulation, and measurement are compared. Good agreement among these results supports the usefulness of the proposed equivalent-circuit model and also validates the FDTD method. By using the equivalent-circuit model to optimize the transition configuration, the CPW-to-CPS transition with broad bandwidth and low insertion loss may be achieved. 2000 IEEE. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-0033905142&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/289994 |
ISSN: | 00189480 | DOI: | 10.1109/22.817468 | SDG/Keyword: | Bond wire effect; Coplanar striplines; Finite difference time domain method; Space wave radiation; Surface wave leakage; Transitions; Computer aided design; Computer simulation; Equivalent circuits; Finite difference method; Frequencies; Insertion losses; Mathematical models; Scattering parameters; Surface waves; Time domain analysis; Transmission line theory; Waveguides; Microstrip lines |
Appears in Collections: | 電機工程學系 |
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