Title :
FDTD analysis of an active antenna
Author :
Thomas, Vincent A. ; Ling, Kuok-Mee ; Jones, Michael E. ; Toland, Brent ; Lin, Jenshan ; Itoh, Tatsuo
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
Coupled FDTD-SPICE simulations are performed for an active antenna problem. The results are comparable to previously published results using FDTD in conjunction with special integration techniques for the nonlinear elements. Some differences occur, and better agreement with experiment is observed for our newer approach. The main advantages are that all of the SPICE device models are directly available for FDTD modeling and the efficient SPICE integration schemes can be used directly. No user intervention is required for either the device models or the integration schemes.<>
Keywords :
Maxwell equations; SPICE; active antennas; antenna theory; finite difference time-domain analysis; integration; microstrip antennas; microwave antenna arrays; simulation; FDTD analysis; FDTD modeling; SPICE device models; active antenna; coupled FDTD-SPICE simulations; device models; efficient SPICE integration schemes; integration techniques; nonlinear elements; Circuit simulation; Coupling circuits; Electromagnetic fields; Equivalent circuits; Finite difference methods; Gunn devices; Microwave circuits; SPICE; Semiconductor diodes; Time domain analysis;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
