Abstract:
Solving Pocklington's 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. The
results agree well with those obtained by King's Three-term
Approximation and with the measured values of Mack. The current
distributions have been calculated in different scale and with respect to
the computing time, the most efficient scale for analysis has been
determined. The method is then extended for antenna array analysis.
Current distributions on each antenna of a three-element Yagi-Uda array
have been derived and compared with those based on King's Three-term
Approximation. With the corresponding current distribution, the input
impedance and radiation pattern ofthin and straight wire antennas and the
properties of a three-element Yagi-Uda array have been calculated,
compared with theoretical results and found physically significant.
