Abstract
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.
Original language | English |
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Pages (from-to) | 1274-1280 |
Number of pages | 7 |
Journal | IEEE Transactions on Microwave Theory and Techniques |
Volume | 51 |
Issue number | 4 I |
DOIs | |
Publication status | Published - 1 Apr 2003 |
MoE publication type | A1 Journal article-refereed |
Funding
Manuscript received October 23, 2002. This work was supported by the Foundation of Technology, Finland, by the Foundation of the Finnish Society of Electronic Engineers, by the Finnish Cultural Foundation, by the Jenny and Antti Wihuri Foundation, by the Foundation for Commercial and Technical Sciences, by the Finnish Konkordia Fund, by the Nokia Foundation, by the Graduate School in Technical Physics and the Graduate School in Electronics, Telecommunications, and Automation, by the Academy of Finland under the Research Programme on Electronic Materials and Microsystems, and under the Programme of Centers of Excellence in Research.
Keywords
- Beam steering
- Diffraction
- Holographic gratings
- Millimeter-wave technology
- Propagation
- Submillimeter-wave technology