Millimeter-wave beam shaping using holograms

We synthesize amplitude- and phase-type computer-generated holograms (diffractive gratings) for shaping millimeter-wave fields. We design holograms using quasi-optical back-propagation and rigorous optimization methods adopted from diffractive optics. We present experimental results from a plane-wav...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 2003-04, Vol.51 (4), p.1274-1280
Main Authors: Meltaus, J., Salo, J., Noponen, E., Salomaa, M.M., Viikari, V., Lonnqvist, A., Koskinen, T., Saily, J., Hakli, J., Ala-Laurinaho, J., Mallat, J., Raisanen, A.V.
Format: Article
Language:English
Subjects:
Antennas
Beams (radiation)
Diffraction gratings
Diffractive optics
Holograms
Holographic optical components
Holography
Laboratories
Microwaves
Millimeter wave technology
Optical diffraction
Optical films
Optical scattering
Optical vortices
Optimization
Testing
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Summary:We synthesize amplitude- and phase-type computer-generated holograms (diffractive gratings) for shaping millimeter-wave fields. We design holograms using quasi-optical back-propagation and rigorous optimization methods adopted from diffractive optics. We present experimental results from a plane-wave-generating hologram and a custom-designed field shaper at 310 GHz. Holograms can be applied, e.g., in a compact antenna test range and we propose their use for alignment purposes.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2003.809679