Title :
Development of a hologram-based CATR for testing a very high gain antenna at 650 GHz
Author :
Ala-Laurinaho, Juha ; Koskinen, Tomi ; Hakli, Janne ; Karttunen, Aki ; Lönnqvist, Anne ; Noponen, Eero ; Mallat, Juha ; Vaaja, Matti ; Viikari, Ville ; Räisänen, Antti ; Heinonen, Jukka ; Hautala, Pekka ; Lemanczyk, Jerzy
Author_Institution :
MilliLab, SMARAD Radio Laboratory, Helsinki University of Technology, P.O. Box 3000, 02015 TKK, Finland
Abstract :
A compact antenna test range (CATR) based on a radio frequency hologram is a potential method for testing high-gain antennas at submillimetre wavelengths. Within a European Space Agency (ESA) project, a 1.5 m reflector antenna, ADMIRALS Representative Test Object (RTO), will be tested at 650 GHz during autumn 2006. For these antenna tests, MilliLab / Radio Laboratory at the Helsinki University of Technology (TKK) is designing and constructing a CATR based on a binary amplitude hologram having a diameter of 3.16 m. The designed quiet-zone width is about 2 m. A plane-polar scanner is designed for the quiet-zone field verification. The dynamic range is estimated to be 32 dB in the quiet-zone field tests and 78 dB in the tests of the high-gain test antenna.
Keywords :
Collimators; Feeds; Instruments; Laboratories; Radio frequency; Reflector antennas; Space technology; Submillimeter wave technology; Testing; Voltage;
Conference_Titel :
Antennas and Propagation, 2006. EuCAP 2006. First European Conference on
Conference_Location :
Nice
Print_ISBN :
978-92-9092-937-6
DOI :
10.1109/EUCAP.2006.4584872
