Title :
A hybrid fourth-order FDTD utilizing a second-order FDTD subgrid
Author :
Georgakopoulos, Stavros V. ; Renaut, Rosemary A. ; Balanis, Constantine A. ; Birtcher, Craig R.
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
A hybrid method utilizing the second-order accurate in time and fourth-order accurate in space FDTD (2, 4) coupled with the standard second-order accurate both in time and space FDTD (2, 2) on a subgrid is presented. The accuracy of the method is tested by computing the S-parameters of two monopoles mounted on a ground plane and it is found to be very satisfactory. Significant computational savings both in memory and time are accomplished by using this hybrid method.
Keywords :
S-parameters; antenna theory; electromagnetic wave propagation; finite difference time-domain analysis; monopole antennas; S parameters; computational savings; ground plane; higher-order schemes; hybrid fourth-order FDTD; monopole antennas; second-order FDTD subgrid; subgrid modeling; Boundary conditions; Clocks; Dispersion; Electronic equipment; Finite difference methods; Frequency; Helicopters; Helium; Testing; Time domain analysis;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/7260.966042
