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Recent results on using computer-generated submm-wave holograms for antenna and RCS measurements

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7 Author(s)
Raisanen, A.V. ; MilliLab, Helsinki Univ. of Technol., Finland ; Koskinen, T. ; Lonnqvist, A. ; Hakli, J.
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Computer-generated holograms (diffractive elements) can be used for shaping submillimeter-wave beams, e.g., for producing a plane wave in a compact space. An amplitude hologram has proved to be a feasible alternative as a focusing element in a compact antenna test range (CATR) at submm-wavelengths. 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. In another study, the feasibility of a phase hologram based RCS (radar cross section) range has been verified with simple test objects.

Published in:

Physics and Engineering of Microwaves, Millimeter, and Submillimeter Waves, 2004. MSMW 04. The Fifth International Kharkov Symposium on  (Volume:1 )

Date of Conference:

21-26 June 2004

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