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Hybrid Photonic True-Time Delay Modules for Quasi-Continuous Steering of 2-D Phased-Array Antennas

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1 Author(s)
Chen, M.Y. ; Ingram Sch. of Eng., Texas State Univ., San Marcos, TX, USA

Hybrid photonic true-time delay modules for phased-array antennas are designed and demonstrated. Continuously tunable true-time delay network based on highly dispersive photonic bandgap fiber (up to 2135 ps/nm/km at 1570 nm), combined with a programmable true-time delay network utilizing optical waveguide delay line and optical switches, provides the antenna with quasi-continuous steering ability. Far-field patterns are simulated and measured to confirm the squint-free beam steering.

Published in:

Lightwave Technology, Journal of  (Volume:31 ,  Issue: 6 )