2 October 1998 Hologram as the collimating element in a compact antenna test range at millimeter wavelengths
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Abstract
A compact antenna test range (CATR) has a great potential for testing electrically large antennas. However, the application of conventional reflector type CATRs becomes increasingly difficult, though not impossible, above 100 GHz due to the tight surface accuracy requirements for the reflectors. A CATR based on a planar hologram has been studied to overcome the problems incurred by the use of reflectors with insufficient surface accuracy. This paper summarizes the recent results obtained for a hologram CATR at Helsinki University of Technology.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Antti V. Raisanen, Taavi Hirvonen, Juha Ala-Laurinaho, Arto Lehto, "Hologram as the collimating element in a compact antenna test range at millimeter wavelengths", Proc. SPIE 3464, Optical Devices and Methods for Microwave/Millimeter-Wave and Frontier Applications, (2 October 1998); doi: 10.1117/12.323144; https://doi.org/10.1117/12.323144
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KEYWORDS
Holograms

Antennas

Reflectors

Polarization

Microwave radiation

Computer generated holography

Extremely high frequency

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