Summary: After a brief resumé of a general theory for the current in coupled antennas, expressions are derived for the distribution of current along two parallel antennas of unequal length and radius. The input impedance to each antenna is then determined when the antennas are driven in phase, and in phase opposition, for applied voltages of equal magnitude. Conventional circuital relations for coupled systems yield the self‐impedance of each radiator, and mutual impedance, in terms of these four calculated impedances.Methods for obtaining optimum conditions in two element arrays, consisting of a driven antenna in proximity to a director or reflector are considered.