US Government As Represented by the Secretary of the Army

Luis C Barzana

Dennis A Green

David R Wakeman

An electromagnetic detection apparatus for sensing an object, has a transter 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.

Growing community of inventors

Burlington, MA, United States of America

Luis C Barzana