Patent ID: 6337660
Filing Date: 2002-01-08
Classification: G02B,H01Q

Abstract:
A fiber optic true time-delay array antenna feed system comprising:means for generating at least one modulated optical signal having at least one wavelength and containing at least one modulation signal; means for splitting the modulated optical signal into a plurality of modulated optical signals; means for respectively propagating the plurality of modulated optical signals at a velocity dependent on the optical wavelength of each of the modulated optical signals comprising the plurality of modulated optical signals thereby producing a plurality of time delayed modulated optical signals; means for respectively converting the plurality of time delayed modulated optical signals into a plurality of electrical signals; means for respectively equalizing the nominal time delays of the plurality of electrical signals; means for respectively amplifying the plurality of nominally equalized electrical signals; means for transmitting the plurality of nominally equalized electrical signals; means for receiving a plurality of electromagnetic signals; and, means for respectively amplifying, controlling and mixing the plurality of nominally equalized electrical signals with the plurality of received electromagnetic signals.