Title :
Experimental studies on radio holograms at mm- and submm-wavelengths
Author :
Räisänen, Antti V. ; Ala-Laurinaho, Juha ; Säily, Jussi ; Häkli, Janne ; Koskinen, Tomi ; Lönnqvist, Anne ; Noponen, Eero ; Salo, Janne ; Meltaus, Johanna ; Westerholm, Jan ; Salomaa, Martti M.
Author_Institution :
MilliLab Radio Lab., Helsinki Univ. of Technol., Finland
Abstract :
Computer-generated holograms can be used for shaping millimeter-wave beams. The radio holograms used are either amplitude or phase holograms. An amplitude hologram has been proven to be a feasible alternative as a focusing element in a compact antenna test range (CATR) in the mm-wavelength regime. Holograms in other mm- and submm-applications are also studied - especially for the creation of nondiffracting Bessel radio beams
Keywords :
computer-generated holography; focusing; microwave holography; amplitude holograms; compact antenna test range; computer-generated holograms; focusing element; millimeter-wave beam shaping; mm-wavelengths; nondiffracting Bessel radio beams; phase holograms; radio holograms; submm-wavelengths; Antenna measurements; Atmospheric measurements; Fabrication; Laboratories; Optical films; Optical surface waves; Optical vortices; Physics; Position measurement; Testing;
Conference_Titel :
Physics and Engineering of Millimeter and Sub-Millimeter Waves, 2001. The Fourth International Kharkov Symposium on
Conference_Location :
Kharkov
Print_ISBN :
0-7803-6473-2
DOI :
10.1109/MSMW.2001.946746
