Title :
Surface impedances for planar conductors in volume discretization methods without frequency limitations
Author_Institution :
CST - Comput. Simulation Technol. AG, Darmstadt, Germany
Abstract :
Surface impedance boundary conditions (SIBC) for lossy metal layers are presented that are not limited to the frequency range in which a metal layer is thicker than several skin depth. A metal layer is considered as a TEM transmission line so that the SIBCs can be obtained as the input impedances of an open ended and a short circuited transmission line, respectively. The SIBCs are verified for a MMIC microstrip line and a coplanar waveguide.
Keywords :
MMIC; conductors (electric); coplanar waveguides; microstrip lines; MMIC microstrip line; SIBC; TEM transmission line; coplanar waveguide; frequency limitations; input impedance; lossy metal layers; planar conductors; skin depth; surface impedance boundary conditions; volume discretization; Conductors; Impedance; Metals; Microstrip; Skin; Surface impedance; Surface waves; FD; FEM; FIT; MMICs; surface impedance; transmission lines;
Conference_Titel :
Microwave Conference (GeMIC), 2011 German
Conference_Location :
Darmstadt
Print_ISBN :
978-1-4244-9225-1
Electronic_ISBN :
978-3-9812668-3-2
