Title :
Cylindrical metamaterial lens for single-feed adaptive beamforming
Author :
Turpin, Jeremiah P. ; Werner, Douglas H.
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
A design is presented for a beam-scanning Transformation Electromagnetics (TE) lens that allows an arbitrary number of beams at controlled magnitudes to be dynamically synthesized from a single omnidirectional source. A cylindrical slab of zero-index magnetic metamaterial controls the radiation pattern by altering the effective shape of the lens through switching regions of it `off´ to emulate free-space conditions. This lens offers the potential for fast solid-state multi-beam control with application to advanced terrestrial communication systems or adaptive radars.
Keywords :
antenna feeds; antenna radiation patterns; array signal processing; lens antennas; metamaterials; multibeam antennas; omnidirectional antennas; adaptive radars; advanced terrestrial communication systems; beam arbitrary number; beam-scanning TE lens; beam-scanning transformation electromagnetic lens; cylindrical metamaterial lens; cylindrical slab; free-space conditions; omnidirectional source; radiation pattern; single-feed adaptive beamforming; solid-state multibeam control; switching regions; zero-index magnetic metamaterial; Lenses; Magnetic materials; Metamaterials; Perpendicular magnetic anisotropy; Shape; Structural beams;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349312
