Abstract
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.
© 2012 IEEE
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