Opto-VLSI-based photonic true-time delay architecture for broadband adaptive nulling in phased array antennas
This paper proposes a novel Opto-VLSI-based tunable true-time delay generation unit for adaptively steering the nulls of microwave phased array antennas. Arbitrary single or multiple true-time delays can simultaneously be synthesized for each antenna element by slicing an RF-modulated broadband opti...
| Main Authors: | , , |
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| Format: | Journal Article |
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Optical Society of America
2009
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| Online Access: | http://hdl.handle.net/20.500.11937/8158 |
| Summary: | This paper proposes a novel Opto-VLSI-based tunable true-time delay generation unit for adaptively steering the nulls of microwave phased array antennas. Arbitrary single or multiple true-time delays can simultaneously be synthesized for each antenna element by slicing an RF-modulated broadband optical source and routing specific sliced wavebands through an Opto-VLSI processor to a high-dispersion fiber. Experimental results are presented, which demonstrate the principle of the true-time delay unit through the generation of 5 arbitrary true-time delays of up to 2.5 ns each. © 2009 Optical Society of America. |
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