Accession Number : ADD001389

Title :   Microwave Phase Shifting Apparatus.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Rubin,David

Report Date : 27 Aug 1974

Pagination or Media Count : 4

Abstract : The patent describes an apparatus for phase shifting between radiating elements of an antenna array by using the inherent phase difference existing between frequency locked oscillators. Power from a master oscillator is injected into a plurality of slave oscillators, each of which feeds a different radiating element. The slave output is also fed through a directional coupler into a phase comparator which receives a comparison output signal from the master oscillator. The comparator output and a DC phase reference voltage are applied to a differential amplifier whose output forces the free-running frequency of the slave oscillator to change until the comparator output equals phase reference voltage.

Descriptors :   *Phase shift circuits, *Patents, Microwave equipment, Antenna arrays, Microwave antennas, Antenna components

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE