Title :
Rigorous solution of mode spectra for shielded multilayer microstrip lines
Author :
Xu, Yun-Sheng ; Omar, Abbas Sayed
Author_Institution :
Arbeitsbereich Hochfrequenztech., Tech. Univ. Hamburg-Harburg, Germany
fDate :
7/1/1994 12:00:00 AM
Abstract :
Based on the equivalent transmission line concept, a simplified method has been developed to derive the dyadic Green´s functions and field expansion coefficients for multilayer structures. An improved formulation of the singular integral equation method is presented for shielded multilayer microstrip lines. A systematic method for analytically calculating the final characteristic matrix to any order is also proposed. The developed numerical technique leads to an accurate and efficient determination of both propagation constants and field distributions for a large number of eigenmodes. For instance, 100 modes can easily be computed in reasonable CPU time
Keywords :
Green´s function methods; integral equations; microstrip lines; waveguide theory; characteristic matrix; dyadic Green functions; eigenmodes; equivalent transmission line; field distributions; field expansion coefficients; mode spectra; multilayer structures; numerical technique; propagation constants; shielded multilayer microstrip lines; singular integral equation method; Accuracy; Costs; Dielectric losses; Integral equations; Microstrip; Nonhomogeneous media; Propagation constant; Transmission line matrix methods; Transmission lines; Waveguide junctions;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
