Accession Number : ADD008012

Title :   Electromagnetic Detection Apparatus.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Barzana,Luis C

Report Date : 12 May 1980

Pagination or Media Count : 18

Abstract : An electromagnetic detection apparatus for sensing an object, has a transmitter for radiating electromagnetic energy toward the object. The apparatus also has an array of at least three spaced receiving antennas and one parasitic antenna. The parasitic antenna is spaced from and mounted alongside the array. Also included is a phase detection circuit for measuring the phase difference between signals received by one of the receiving antennas with respect to the other two. This apparatus can sense phase difference and correlate it to the azimuthal position of the object. (Author)

Descriptors :   *Patent applications, *Phase detectors, *Antenna arrays, *Direction finding, *Phased arrays, Electromagnetic radiation, Position(Location), Antennas, Radiation, Detectors, Detection, Circuits, Azimuth

Subject Categories : Electrical and Electronic Equipment
      Direction Finding
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE