ISSTT Proceedings

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Instrumentation And Testing Of Submillimeter Wave Compact Antenna Test Ranges

Authors:
Jussi Säily, Juha Ala-Laurinaho, Janne Häkli, Jussi Tuovinen, Arto Lehto, Antti V. Räisänen
Abstract:
Testing of antennas in submillimeter wave (>300 GHz) compact antenna test ranges (CATRs) has some specific problems that do not appear with conventional millimeter wave CATRs. The available transmitter power is very low, usually in the range of a few milliwatts. Also the atmospheric attenuation due to water vapour absorption at certain frequency bands can be very high. For these reasons the CATR should be located inside a controlled, low humidity atmosphere. Furthermore, at submm wavelengths the required quiet zone quality is more difficult to achieve than at mm wavelengths. A hologram is seen as a feasible alternative to reflectors as the collimating element in a CATR. In this paper, the proposed testing environment using a hologram CATR along with the needed instrumentation for 300-1000 GHz are presented. The results apply also to reflector CATRs.
Categories:
Antennas & Telescopes, Quasi Optics
Year:
2000
Session:
11
Full-text:
Download a PDF of this paper.
Page Number(s):
581-588