Title :
Characteristics of striplines with inhomogeneous cylindrical substrate
Author :
Lee, Chung-Rung ; Kiang, Jean-Fu ; Chen, Chun Hsiung
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
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 coefficients. An integral equation is derived based on these eigenmodes with charge on the stripline as unknown. The method of moments is applied to solve this integral equation. Various parameters are analyzed for their effects on the transmission characteristics
Keywords :
Galerkin method; eigenvalues and eigenfunctions; inhomogeneous media; integral equations; method of moments; mode matching; permittivity; strip lines; substrates; transmission line theory; Galerkin method; contiguous layers; eigenmodes; embedded striplines; inhomogeneous cylindrical substrate; integral equation; method of moments; mode-matching technique; potential ratio coefficients; striplines characteristics; transmission characteristics; Capacitance; Dielectric constant; Feeds; Impedance; Integral equations; Microstrip; Moment methods; Nonuniform electric fields; Stripline; Transmission line matrix methods;
Conference_Titel :
Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific
Conference_Location :
Taipei
Print_ISBN :
0-7803-7138-0
DOI :
10.1109/APMC.2001.985616
