Abstract: An improved coaxial-collinear antenna comprising a pair of continuous inner conductors each having a plurality of dielectric spacers mounted thereon for supporting a plurality of individual outer conductors in coaxial alignment with the continuous inner conductor. The outer conductors are equidistantly spaced along each continuous inner conductor by an amount substantially equal to the length of each outer conductor. The pair of continuous inner conductors are parallel, and the outer conductors mounted on each continuous inner conductor are electrically connected to the other continuous inner conductor between outer conductors consecutively mounted on that other inner conductor.