Linearly-Polarized and Circularly-Polarized Discrete Lenses for Wideband Applications

Wideband linearly-polarized (LP) and circularly-polarized (CP) discrete lenses are developed, based on the use of magneto-electric (ME) dipole elements. The wideband phase adjusting capability and stable polarization conversion property of the ME-dipole transmitting element are utilized and properly combined, to facilitate the design of such wideband lenses with desired polarization. The two developed designs that generate LP and CP radiations, respectively, both demonstrate a wide bandwidth of over 40%, which could be of interest for many wideband applications.