Title :
Characteristics of striplines with inhomogeneous cylindrical substrate
Author :
Kiang, Jean-Fu ; Lee, Chung-Rung ; Chen, Chun Hsiung
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
5/1/2003 12:00:00 AM
Abstract :
A mode-matching technique combined with Galerkin´s method is proposed in this paper to analyze the characteristics of striplines embedded in an inhomogeneous cylindrical medium. The potential in each layer is expressed in terms of eigenmodes obtained numerically. Coupling between two sets of eigenmodes in contiguous layers is described by defining potential ratio coefficient matrices. An integral equation is derived based on these eigenmodes with charge on the stripline as unknown. The method of moments is then applied to solve this integral equation. Various parameters are analyzed for their effects on transmission characteristics.
Keywords :
Galerkin method; eigenvalues and eigenfunctions; inhomogeneous media; integral equations; method of moments; mode matching; strip lines; waveguide theory; Galerkin´s method; contiguous layers; eigenmodes; inhomogeneous cylindrical substrate; inhomogeneous medium embedded striplines; integral equation; method of moments; mode-matching technique; potential ratio coefficient matrices; transmission characteristics; Coaxial components; Dielectric constant; Digital integrated circuits; Filters; High speed integrated circuits; Integral equations; Microstrip; Moment methods; Multiconductor transmission lines; Stripline;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2003.810130
