Title :
Cutoff frequencies of transmission lines consisting of pair of cylinders
Author :
Das, B.N. ; Chakrabarty, S.B. ; Das, S.
Author_Institution :
Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur, India
fDate :
11/1/1996 12:00:00 AM
Abstract :
The paper presents a method of evaluation of cutoff frequencies of higher-order modes of transmission line of parallel cylinders by transforming them into a parallel plate configuration using cotangent hyperbolic transformation. Application of the method of finite difference to the weighted Helmholtz equation leads to a set of simultaneous equations. The eigenvalues related to cutoff frequencies are determined from the characteristic equation expressed in terms of matrices obtained from the simultaneous equations. Numerical data are presented
Keywords :
Helmholtz equations; eigenvalues and eigenfunctions; finite difference methods; transmission line theory; characteristic equation; cotangent hyperbolic transformation; cutoff frequencies; eigenvalues; finite difference; higher-order modes; matrices; pair of cylinders; parallel cylinders; parallel plate configuration; simultaneous equations; transmission lines; weighted Helmholtz equation; Coaxial components; Cutoff frequency; Difference equations; Eigenvalues and eigenfunctions; Engine cylinders; Finite difference methods; Power transmission lines; Transmission line matrix methods; Transmission lines; Visualization;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
