Subcell modeling in the FDTD method is often used to improve accuracy witho
ut a significant increase in computational resources. One of the problems i
n this class is the modeling of wire dipole antennas. An algorithm for mode
ling wire dipoles with the radius in the range of 2 x 10(-6) to 2 x 10(-2)
of the wavelength is described that significantly improves the accuracy of
the determination of the antenna input impedance. (C) 1999 John Wiley & Son
s, Inc. Microwave Opt Technol Lett 21: 261-265, 1999.