In one embodiment, a periodic spiral antenna includes first and second arms that form interleaved spirals parallel to an x-y plane, wherein the arms have a height dimension that extends along a z direction that is perpendicular to the x-y plane, and wherein the interleaved spirals form multiple turns of the antenna, the turns being equally spaced from each other throughout the antenna.
O'Brien, Jonathan Michael; Weller, Thomas; Mumcu, Gokhan; and Grandfield, John E., "Periodic spiral antennas" (2014). USF Patents. 186.
University of South Florida The Charles Stark Draper Laboratory