Title :
A configuration-oriented SPICE model for multiconductor transmission lines in an inhomogeneous medium
Author :
Tripathi, Alok ; Tripathi, V.K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
fDate :
12/1/1998 12:00:00 AM
Abstract :
A configuration-oriented SPICE model for multiple coupled lines in an inhomogeneous medium is presented in this paper. The circuit model consists of a network of uncoupled transmission lines and is readily modeled with simulation tools like LIBRA and SPICE, and provides an equivalent-circuit representation which is simple and topologically meaningful as compared to the model based on modal decomposition. This configuration-oriented model is derived by decomposing the immittance matrices associated with an n coupled-line 2n-port system. Time- and frequency-domain simulations of typical coupled-line multiports are included to exemplify the utility of the model. The model is useful for the simulation and design of general single and multilayer coupled-line components such as filters and couplers and investigation of signal integrity issues, including crosstalk in interconnects associated with high-speed digital- and mixed-signal electronic modules and packages
Keywords :
SPICE; coupled transmission lines; equivalent circuits; inhomogeneous media; multiconductor transmission lines; transmission line matrix methods; LIBRA; configuration-oriented SPICE model; coupled line multiport; coupler; crosstalk; equivalent circuit; frequency domain simulation; immittance matrix; inhomogeneous medium; interconnect; microstrip filter; multiconductor transmission line; signal integrity; time domain simulation; Circuit simulation; Coupling circuits; Digital filters; Distributed parameter circuits; Matrix decomposition; Multiconductor transmission lines; Nonhomogeneous media; SPICE; Signal design; Transmission line matrix methods;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
