Research/Patents/US 5345239
US 5345239

HIGH SPEED SERRODYNE DIGITAL FREQUENCY TRANSLATOR

Assignee

Filed

Jun 16, 1988

Granted

Sep 6, 1994

Location

LOS ANGELES CA US

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.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

May 10, 1988

Rescinded

Dec 14, 1993

Duration

5 years, 7 months

Inventor

  • 1ASAD M. MADNI
Back to patent indexSource: USPTO 35 USC §181 secrecy order records