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Optical beam forming networks (OBFN) are an interesting alternative for the design of wideband antenna arrays. They are potentially more power efficient and lighter than their microwave counterparts. These two characteristics make them especially appealing in space remote sensing applications. However, in a practical implementation of OBFN in a real SAR system, different architectural and technological...
A novel approach to simplify optical beamforming networks based on wavelength-division-multiplexing (WDM) optical sources and a dispersive medium is proposed. The technique relies on the combination of dispersive and nondispersive time delays to allow the reuse of optical carriers. Thus, the number of required optical sources, which is one of the main limitations of WDM-based beamforming architectures,...
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