Analysis of wire antennas by solving Pocklington’s integral equation using wavelets

Solving Pocklingtonpsilas integral equation for the thin and straight wire antennas by moment method, the current distributions of a half-wave and a full- wave dipole have been deduced using semi-orthogonal wavelet bases that are constructed from the second-order cardinal B-spline. Results agree well with Kingpsilas Three-term theory and the measured values of Mack. The input impedance and radiation pattern of these antennas are calculated with the corresponding current distribution. The method is then extended to antenna array analysis. Current distributions on each antenna of a three-element Yagi-Uda array have been derived and compared with those based on Kingpsilas Three-term theory. With the current distribution, the input impedance and radiation pattern of the array have also been obtained within reduced computing time.