Accurate modeling of thin-wire antennas in the FDTD method

Abstract

Subcell modeling in the FDTD method is often used to improve accuracy without a significant increase in computational resources. One of the problems in this class is the modeling of wire dipole antennas. An algorithm for modeling wire dipoles with the radius in the range of 2×10−6 to 2×10−2 of the wavelength is described that significantly improves the accuracy of the determination of the antenna input impedance. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 21: 261–265, 1999.