Title :
Radio-wave beam shaping using holograms
Author :
Meltaus, J. ; Salo, J. ; Noponen, E. ; Salomaa, M.M. ; Viikari, V. ; Lonnqvist, A. ; Koskinen, T. ; Saily, J. ; Hakli, J. ; Ala-Laurinaho, J. ; Mallat, J. ; Raisanen, A.V.
Author_Institution :
Mater. Phys. Lab., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
Millimetre-wave radio fields are shaped using both amplitude- and phase-type computer-generated holograms (diffractive elements). Methods for hologram element synthesis are described. Holograms that produce plane waves, radio-wave vortices, and Bessel beams at 310 GHz are fabricated and tested.
Keywords :
antenna testing; computer-generated holography; microwave holography; millimetre waves; submillimetre waves; 310 GHz; Bessel beams; CATR; EHF; MM-wave radio field shaping; THF; amplitude-type computer-generated holograms; compact antenna test range; diffractive elements; hologram element synthesis; millimetre-wave radio fields; phase-type computer-generated holograms; plane waves; radiowave beam shaping; radiowave vortices; satellite antenna testing; Copper; Diffraction gratings; Electromagnetic diffraction; Electromagnetic fields; Holography; Laboratories; Optical diffraction; Optical films; Phase modulation; Testing;
Conference_Titel :
Microwave Symposium Digest, 2002 IEEE MTT-S International
Print_ISBN :
0-7803-7239-5
DOI :
10.1109/MWSYM.2002.1011908
