Abstract
A SPICE lumped circuit subcell model is formulated within the discontinuous Galerkin finite-element time-domain (DGFETD) discretization of Maxwell's equations. A fourth-order exponential time difference (ETD) algorithm is used for circuits that lead to stiff systems. The ETD method reduces to a standard fourth-order Runge-Kutta (RK4) time-integration for nonstiff regions. A number of test cases, including a microstrip transmission line terminated with general RLC networks, load arrays, and a diode detector are presented for the validation of the proposed hybrid DGFETD/SPICE solution method.
| Original language | English |
|---|---|
| Article number | 6248187 |
| Pages (from-to) | 2684-2692 |
| Number of pages | 9 |
| Journal | IEEE Transactions on Microwave Theory and Techniques |
| Volume | 60 |
| Issue number | 9 |
| DOIs | |
| State | Published - 2012 |
Bibliographical note
Funding Information:Manuscript received September 16, 2011; revised May 16, 2012; accepted June 04, 2012. Date of publication July 24, 2012; date of current version August 28, 2012. This work was supported in part by the U.S. Air Force Office of Scientific Research under Prime Contract FA9550-10-C-0121.
Keywords
- Circuit model
- SPICE
- discontinuous Galerkin time-domain (DGTD)
- finite element
ASJC Scopus subject areas
- Radiation
- Condensed Matter Physics
- Electrical and Electronic Engineering