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Proceedings Paper

Holographic Rotman lens for phased-array antenna beam forming
Author(s): David D. Curtis
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Paper Abstract

This paper introduces an optical implementation of the classic Rotman lens beamformer for use in ultra-wideband array antenna beamforming applications. The optical version described here features volume holograms as lens ports, arranged on geometric contours which follow modified Rotman's lens design equations. Modification of Rotman's lens equations, modeling of ray propagation in the lens, and the design process for this holographic Rotman lens are described in detail. Currently, a free-space experiment is in process to validate this design at 10 GHz, and to provide insight on the use of diffractive optics technology for millimeter-wave applications. Experimental results will be reported in detail in the near future.

Paper Details

Date Published: 30 June 1995
PDF: 12 pages
Proc. SPIE 2481, Photonic Device Engineering for Dual-Use Applications, (30 June 1995); doi: 10.1117/12.212702
Show Author Affiliations
David D. Curtis, Air Force Rome Lab. (United States)

Published in SPIE Proceedings Vol. 2481:
Photonic Device Engineering for Dual-Use Applications
Andrew R. Pirich, Editor(s)

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