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Fiber-optic true-time-delay control of an array antenna

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Abstract

We present a sparsely-populated-array transmitter antenna controlled by a true-time-delay fiber-optic beam former. The beam former is based on a novel technique1 that does not suffer from the specialized component requirements, power losses, or instabilities of previous techniques.2-4 The antenna has a 2-12-GHz instantaneous bandwidth and shows a >100° squint-free azimuth-steering characteristic.

© 1995 Optical Society of America

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