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OPTICALLY GENERATED TRUE-TIME DELAY IN PHASED-ARRAY ANTENNAS

FRIGYES, I; SEEDS, AJ; (1995) OPTICALLY GENERATED TRUE-TIME DELAY IN PHASED-ARRAY ANTENNAS. IEEE T MICROW THEORY , 43 (9) 2378 - 2386.

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Abstract

This tutorial review paper deals with various methods for solving a basic problem of wideband phased arrays, i.e. beam squinting, using optical technologies. The problem of beam squinting in phased arrays is analyzed and the concept of true-time delay is introduced. The advantages of realizing variable delay hues by optical rather than by microwave means are reviewed, together with principles of operation. Among the techniques described are switched-path length delay lines, fiber stretchers, tunable lasers with highly dispersive fiber, and coherent techniques incorporating dispersive delay. Recent experimental results are discussed in the light of practical system requirements.

Type: Article
Title: OPTICALLY GENERATED TRUE-TIME DELAY IN PHASED-ARRAY ANTENNAS
Keywords: MODULATOR
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/130591
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