Accession Number : AD0165045

Title :   Apparatus for Identifying Main Lobe Responses.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Gulick,Joseph F. , Jr

Report Date : 17 JUL 1973

Pagination or Media Count : 7

Abstract : The patent describes apparatus for instantaneously determining whether the angle of arrival of a signal is within an antenna main lobe or within a side lobe. The apparatus uses a high gain, highly directive antenna and a low gain, broad pattern antenna, in combination with a local oscillator, limiting amplifiers and a phase sensitive detector. The antennae are mounted so that their centers of radiation are coaxial and on a plane perpendicular to the axes of their respective main receiving lobes.

Descriptors :   *Radar equipment, *Direction finding, *Signal processing, *Patents, Directional antennas, Antenna lobes, Angle of arrival, Signals, Phase, Sensitivity, Detection, Response, Radar receivers, Radar antennas

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE