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Title: Feed-forward digital phase and amplitude correction system

Phase and amplitude modifications in repeatable RF pulses at the output of a high power pulsed microwave amplifier are made utilizing a digital feed-forward correction system. A controlled amount of the output power is coupled to a correction system for processing of phase and amplitude information. The correction system comprises circuitry to compare the detected phase and amplitude with the desired phase and amplitude, respectively, and a digitally programmable phase shifter and attenuator and digital logic circuitry to control the phase shifter and attenuator. The Phase and amplitude of subsequent are modified by output signals from the correction system.
 [1];  [1]
  1. (Rancho Palos Verdes, CA)
Issue Date:
OSTI Identifier:
Duly Research, Inc. (Rancho Palos Verdes, CA) OAK
Patent Number(s):
US 5365190
Contract Number:
Research Org:
Duly Research, Inc. (Rancho Palos Verdes, CA)
Country of Publication:
United States
feed-forward; digital; phase; amplitude; correction; modifications; repeatable; rf; pulses; output; power; pulsed; microwave; amplifier; utilizing; controlled; amount; coupled; processing; information; comprises; circuitry; compare; detected; desired; respectively; digitally; programmable; shifter; attenuator; logic; control; subsequent; modified; signals; power pulsed; power pulse; desired phase; logic circuitry; pulsed microwave; phase shift; output signals; output signal; output power; digital logic; phase shifter; microwave amplifier; logic circuit; controlled amount; rf pulses; rf pulse; detected phase; digitally programmable; amplitude correction; /330/