Accession Number : ADD000274
Title : Amplitude Modulation Using Phased-Array Antennas.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Wright,Maynard Lattimer
Report Date : 23 Apr 1974
Pagination or Media Count : 7
Abstract : The patent describes an antenna system for producing an amplitude modulated signal at a receiver by properly varying the spatial amplitude distribution of the antenna beam. The antenna beam variation is accomplished by varying the relative phase of a phase-array antenna at the desired modulation rate. A variable DC bias signal is applied to each element of the antenna which is used to steer the beam in angle. An AC signal is also applied to each element which will appear as AM modulation at a distant receiver.
Descriptors : *Phased arrays, *Patents, Amplitude modulation
Subject Categories : Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE