Distribution of current on cylindrical radiating dipoles

The distribution of current on a dipole comprising cylindrical conductors is approximately sinusoidal, but in certain problems a more accurate solution is required. A number of theoretical attempts have been made to obtain a better approximation and are in reasonable agreement. These methods are, however, laborious to apply in practice and are also limited in application. In the paper a simple method is described that enables a current distribution more accurate than the sinusoidal approximation to be determined. The method is based on the perturbation principle and, besides being applicable to a wide variety of cases, is in good agreement with more rigorous theoretical approaches and with measurements.