Title :
Sub-mm antenna tests in a hologram-based CATR
Author :
Häkli, Janne ; Ala-Laurinaho, Juha ; Koskinen, Tomi ; Lemanczyk, Jerzy ; Lönnqvist, Anne ; Mallat, Juha ; Räisänen, Antti V. ; Säily, Jussi ; Tuovinen, Jussi ; Viikari, Ville
Author_Institution :
Radio Lab./SMARAD, Helsinki Univ. of Technol., Espoo, Finland
Abstract :
Computer-generated holograms can be used as collimating elements in compact antenna test ranges (CATRs). Recently, a 1.5 m parabolic antenna, the ADMIRALS representative test object (RTO), was tested at 322 GHz using a hologram-based CATR that was built specifically for these tests. The construction of the compact range is discussed in this paper. A 3 m hologram was used to realize a 1.8 m diameter quiet zone. The measured quiet-zone field amplitude and phase and the measured H-plane radiation pattern cut of the representative test object are presented. The measured -3 dB beam width of the antenna was 0.050° in the H plane.
Keywords :
antenna radiation patterns; antenna testing; computer-generated holography; submillimetre wave antennas; 1.5 m; 1.8 m; 322 GHz; CATR; H-plane radiation pattern; compact antenna test ranges; computer-generated holograms; parabolic antenna; quiet-zone field amplitude; representative test object; sub-mm antenna tests; Antenna measurements; Antenna radiation patterns; Holography; Information technology; Manufacturing; Microwave antennas; Phase measurement; Reflector antennas; Submillimeter wave measurements; Testing;
Journal_Title :
Antennas and Propagation Magazine, IEEE
DOI :
10.1109/MAP.2005.1599217
