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Free-space power combining and beam steering of ultra-wideband radiation using an array of laser-triggered antennas

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2 Author(s)
Funk, E.E. ; Weapons Technol. Directorate, Army Res. Lab., Adelphi, MD, USA ; Lee, Chi H.

A mode-locked laser is used to synchronize jitter-free ultrawideband (UWB) pulse generation at an array of UWB antenna elements. The jitter-free pulses radiated by each element add together in free space to produce a radiated field pattern that is steerable via optical true-time-delay techniques. The results from a three element array experiment are presented and used to develop a model for an N-element phased array. A transmission-line model is presented for a single array element, which includes the functions of energy storage, as well as UWB pulse generation and radiation

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:44 ,  Issue: 11 )