Title :
A general formulation for connecting sources and passive lumped-circuit elements across multiple 3-D FDTD cells
Author :
Durney, Carl H. ; Sui, Wenquan ; Christensen, Douglas A. ; Zhu, Jingyi
Abstract :
A previous extension of the finite-difference time-domain (FDTD) method to include lumpedcircuit elements is further extended to model lumped-element circuits connected across multiple FDTD cells. This formulation is needed to model many kinds of circuits, like those with a transistor or other active device connected across a transmission line with more than one dielectric. The FDTD analysis of a shielded suspended microstrip transmission line excited by a current source in parallel with a resistance illustrates the usefulness of the formulation.
Keywords :
Cities and towns; Dielectric devices; Distributed parameter circuits; Finite difference methods; Integral equations; Joining processes; Maxwell equations; Microwave circuits; Time domain analysis;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
