Title :
Computer-generated hologram and its use for submm-wave antenna measurement
Author :
Räisanen, A.V. ; Ala-Laurinaho, I. ; Koskinen, T. ; Lönnqvist, A. ; Säily, J. ; Häkli, J. ; Mallat, J. ; Viikari, V. ; Ranvier, S. ; Tuovinen, J.
Author_Institution :
Radio Lab., Helsinki Univ. of Technol., Hut, Finland
Abstract :
Computer-generated holograms (diffractive elements) can be used for shaping millimeter-wave beams, e.g., for producing a plane wave in a compact space. An amplitude hologram has earlier been demonstrated to be able to form arbitrary beams at 310 GHz and has proven to be a feasible alternative as a focusing element in a compact antenna test range (CATR) at mm-wavelengths. It was used successfully for Odin satellite antenna tests at 119 GHz. In a recent study we have designed and constructed a compact antenna test range for 322 GHz and measured the ADMIRALS representative test object, which is a 1.5-meter offset paraboloid antenna.
Keywords :
antenna testing; computer-generated holography; offset reflector antennas; satellite antennas; submillimetre wave antennas; submillimetre wave measurement; 1.5 m; 119 GHz; 310 GHz; 322 GHz; ADMIRALS representative test object; CATR; Odin satellite antenna tests; amplitude hologram; compact antenna test range; computer generated hologram; diffractive elements; focusing element; millimeter wave beams; offset paraboloid antenna; plane wave production; submillimeter wave antenna measurement; Antenna measurements; Application software; Diffraction; Instruments; Millimeter wave technology; Reflector antennas; Satellite antennas; Satellite broadcasting; Space technology; Testing;
Conference_Titel :
Aerospace Conference, 2004. Proceedings. 2004 IEEE
Print_ISBN :
0-7803-8155-6
DOI :
10.1109/AERO.2004.1367673
