Title :
Accelerated FDTD Analysis of Antennas Loaded by Electric Circuits
Author :
Watanabe, Yuta ; Igarashi, Hajime
Author_Institution :
Grad. Sch. of Inf. Sci. & Technol., Hokkaido Univ., Sapporo, Japan
Abstract :
A fast FDTD method for the analysis of antennas loaded by nonlinear electric circuits is introduced. In the present analysis, the modified nodal analysis (MNA) method is coupled with the FDTD method. The time-periodic explicit error correction (TP-EEC) method is applied to the MNA method for accelerated computation of the transient processes. The present method is applied to analysis of simplified models of an RFID tag composed of a nonlinear electric circuit and line antenna. It is shown that the present method can effectively shorten the computational time by accelerating the transient processes.
Keywords :
antennas; finite difference time-domain analysis; networks (circuits); accelerated FDTD analysis; line antenna; modified nodal analysis; nonlinear electric circuits; time-periodic explicit error correction; transient processes; Acceleration; Convergence; Equations; Finite difference methods; Steady-state; Time domain analysis; Transient analysis; Electromagnetic waves; FDTD method; RFID tag; TP-EEC method; modified nodal analysis;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2011.2173148
