High power radio frequency (RF) amplifiers
AssigneeRaytheon Company
InventorsChristopher M. Laighton, Susan C. Trulli, Elicia K. Harper
Life of this patent
Estimating the term…
Abstract
A power amplifier having: a plurality of N amplifier modules, where N is an integer greater than one; an M:N power splitter having M inputs, where M is an integer less than N, and N outputs, each one of the N outputs being coupled to an input of a corresponding one of the plurality of N power amplifiers; a plurality of M delay lines, each one the M delay lines having an output coupled to a corresponding one of the M inputs of the M:N power splitter, each one of the plurality of M delay lines being coupled to a common input of the power amplifier.
Claims8
A high power RF amplifier circuit comprising:
- a plurality of N power amplifier, where N is an integer greater than one, each one of the power amplifies having a predetermined phase shift;
- an M:N power splitter having M inputs, where M is an integer less than N, and N outputs, each one of the N outputs being coupled to an input of a corresponding one of the plurality of N power amplifiers;
- a plurality of M delay lines, each one of the M delay lines having a predetermined phase shift selected from minus twenty degrees to minus 50 degrees, each one the M delay lines having an output coupled to a corresponding one of the M inputs of the M:N power splitter, each one of the plurality of M delay lines being coupled to a common input of the high power RF amplifier circuit wherein a combination of the predetermined phase shift of each power amplifier combined with the predetermined phase shift of each one of the M delay lines provides a desirable phase shift as an output for each one of the power amplifiers.
A high power RF amplifier circuit comprising:
- a plurality of N power amplifiers, where N is an integer greater than one, each one of the power amplifiers having a predetermined phase shift wherein the N amplifiers are arranged in M amplifier module sections, each one of the M amplifier module sections having N/M of the amplifiers, each one of the N/M amplifiers in a corresponding one of the M amplifier module sections having a phase shift (Δ1+/−δ) degrees through (ΔM+/−δ) degrees, respectively;
- an M:N power splitter having M inputs, where M is an integer less than N, and N outputs, each one of the N outputs being coupled to an input of a corresponding one of the plurality of N power amplifiers;
- a plurality of M delay lines, where each one of the M delay lines has a phase shift Δ1 through ΔM respectively, each one of the M delay lines having a predetermined phase shift selected from minus twenty degrees to minus 50 degrees, each one of the M delay lines having an output coupled to a corresponding one of the M inputs of the M:N power splitter, each one of the plurality of M delay lines being coupled to a common input of the high power RF amplifier combined with the predetermined phase shift of each one of the M delay lines provides a desirable phase shift at an output for each one of the power amplifiers.
Dependencies are inferred from the claim text.