Double-sided split-step MM-wave Fresnel lenses: design, fabrication and focal field measurementsV. B. Yurchenko, M. Ciydem, M. Gradziel, J. A. Murphy and A. AltintasJ. Eur. Opt. Soc.-Rapid Publ., 9 (2014) 14007DOI: https://doi.org/10.2971/jeos.2014.14007