Accession Number : ADD002318

Title :   RF Power Amplifier Parallel Redundant System.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Rambo,Sheldon I

Report Date : 12 Nov 1975

Pagination or Media Count : 9

Abstract : The patent application relates to an RF power amplifier parallel redundant circuit which employs three amplifiers. Under normal operation when all three amplifiers are functioning, the output from a comparator holds a 0 degree, 60 degree two-bit phase shifter in the 60 degree position. When anyone of the amplifiers or any pair of amplifiers fail, the comparator output causes the two-bit phase shifter to switch to the 0 degree position. The system holds the power output constant at one-fourth the value of each individual amplifier for single or double failures. Only one simple switching position operation is required.

Descriptors :   *Radiofrequency amplifiers, Patents, Redundant components, Reliability(Electronics), Parallel processing, Switching, Phase shift, Comparators

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE