High speed serrodyne digital frequency translator

Details High speed serrodyne digital frequency translator High speed serrodyne digital frequency translator

1988-06-16

1994-09-06

Hellner, Mark

Communications: directive radio wave systems and devices (e.g.,

Radar ew

Ecm

G01S 736

Patent

active

053452399

ABSTRACT:
A high-speed serrodyne digital frequency translator utilizes a digital phase-shifter, for example, of series coupled Schiffman type cells, which have reference and delay paths which are switched by three-terminal devices of the gallium arsenide FET type. No bias voltages are used and the FETS are driven by the output of a binary divider network which in turn is composed of GaAs FETS as active elements. Thus switching in the picosecond range results.

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