Spectral-domain computation of characteristic impedances andmultiport parameters of multiple coupled microstrip lines |
| |
Authors: | Tripathi VK Lee H |
| |
Affiliation: | Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR; |
| |
Abstract: | A numerical procedure based on the spectral-domain techniques is formulated to compute all the frequency-dependent normal-mode parameters of general multiple coupled line structures in an inhomogeneous medium. In addition to the phase and attenuation constants for all the normal modes, these parameters include the line-mode and decoupled line modal impedances and the current and equivalent voltage eigenvector matrices of the coupled system. The multiport admittance (and impedance) matrices and coupled line equivalent-circuit model parameters are evaluated in terms of these normal-mode parameters. Numerical results for these normal-mode parameters for typical asymmetric two-, three-, and four-line microstrip structures are included to demonstrate the procedure and the frequency dependence of these parameters |
| |
Keywords: | |
|
|