Saw Circuit for Generating Continuous Time-Coherent RF Carriers.
Patent Application, Filed 5 Jul 88,
DEPARTMENT OF THE ARMY WASHINGTON DC
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The surface acoustic wave device which generates two coherent signals from a single input. The inventive device has three interdigital transducers IDT spaced upon a single piezoelectric substrate. The central IDT has three sets of interdigital fingers. A power splitter and an amplifier are connected between the central IDT and one of the other IDTs to form a recirculation loop. An input signal burst applied to the central IDT produces two coherent outputs at the remaining IDT and the power splitter. RH.