The cylindrical antenna with arbitrary driving point

A new, reasonably accurate approximate solution is obtained in trigonometric form of the distribution of current and the admittance of a cylindrical antenna when driven off center. The symmetrical problem (sleeve dipole) with two equal generators at the same distances from the center is solved first, then the antisymmetrical case with equal and opposite generators. A suitable superposition of the two results provides the solution for the dipole antenna when driven at an arbitrary point along its length. The results are sufficiently simple to be useful in the study of antennas with active or passive elements located along their length.